commit 0a6cec26c49ea0a004731209023743e7df51fff9 Author: Michael Krayer Date: Fri Mar 26 12:21:35 2021 +0100 dtach v0.9 diff --git a/COPYING b/COPYING new file mode 100644 index 0000000..d159169 --- /dev/null +++ b/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. 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It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..d4458c2 --- /dev/null +++ b/Makefile @@ -0,0 +1,36 @@ +srcdir = . +CC = gcc +CFLAGS = -g -O2 -W -Wall -I. +LDFLAGS = +LIBS = -lutil +VERSION = 0.9 + + +OBJ = attach.o master.o main.o +SRC = $(srcdir)/attach.c $(srcdir)/master.c $(srcdir)/main.c + +TARFILES = $(srcdir)/README $(srcdir)/COPYING $(srcdir)/Makefile.in \ + $(srcdir)/config.h.in $(SRC) \ + $(srcdir)/dtach.h $(srcdir)/dtach.spec $(srcdir)/configure \ + $(srcdir)/configure.ac $(srcdir)/dtach.1 + +dtach: $(OBJ) + $(CC) -o $@ $(LDFLAGS) $(OBJ) $(LIBS) + +clean: + rm -f dtach $(OBJ) dtach-$(VERSION).tar.gz + +distclean: clean + rm -f config.h Makefile config.log config.status config.cache + +tar: + mkdir dtach-$(VERSION) + cp $(TARFILES) dtach-$(VERSION) + tar -cf dtach-$(VERSION).tar dtach-$(VERSION)/ + gzip -9f dtach-$(VERSION).tar + rm -rf dtach-$(VERSION) + +attach.o: ./attach.c ./dtach.h config.h +master.o: ./master.c ./dtach.h config.h +main.o: ./main.c ./dtach.h config.h + diff --git a/Makefile.in b/Makefile.in new file mode 100644 index 0000000..11afcd3 --- /dev/null +++ b/Makefile.in @@ -0,0 +1,36 @@ +srcdir = @srcdir@ +CC = @CC@ +CFLAGS = @CFLAGS@ -I. +LDFLAGS = @LDFLAGS@ +LIBS = @LIBS@ +VERSION = @PACKAGE_VERSION@ +VPATH = $(srcdir) + +OBJ = attach.o master.o main.o +SRC = $(srcdir)/attach.c $(srcdir)/master.c $(srcdir)/main.c + +TARFILES = $(srcdir)/README $(srcdir)/COPYING $(srcdir)/Makefile.in \ + $(srcdir)/config.h.in $(SRC) \ + $(srcdir)/dtach.h $(srcdir)/dtach.spec $(srcdir)/configure \ + $(srcdir)/configure.ac $(srcdir)/dtach.1 + +dtach: $(OBJ) + $(CC) -o $@ $(LDFLAGS) $(OBJ) $(LIBS) + +clean: + rm -f dtach $(OBJ) dtach-$(VERSION).tar.gz + +distclean: clean + rm -f config.h Makefile config.log config.status config.cache + +tar: + mkdir dtach-$(VERSION) + cp $(TARFILES) dtach-$(VERSION) + tar -cf dtach-$(VERSION).tar dtach-$(VERSION)/ + gzip -9f dtach-$(VERSION).tar + rm -rf dtach-$(VERSION) + +attach.o: @srcdir@/attach.c @srcdir@/dtach.h config.h +master.o: @srcdir@/master.c @srcdir@/dtach.h config.h +main.o: @srcdir@/main.c @srcdir@/dtach.h config.h + diff --git a/README b/README new file mode 100644 index 0000000..6e8aa27 --- /dev/null +++ b/README @@ -0,0 +1,210 @@ +1. INTRODUCTION + +dtach is a program written in C that emulates the detach feature of +screen, which allows a program to be executed in an environment that is +protected from the controlling terminal. For instance, the program under +the control of dtach would not be affected by the terminal being +disconnected for some reason. + +dtach was written because screen did not adequately meet my needs; I did +not need screen's extra features, such as support for multiple +terminals or terminal emulation support. screen was also too big, +bulky, and had source code that was difficult to understand. + +screen also interfered with my use of full-screen applications such as +emacs and ircII, due to its excessive interpretation of the stream between +the program and the attached terminals. dtach does not have a terminal +emulation layer, and passes the raw output stream of the program to the +attached terminals. The only input processing that dtach does perform is +scanning for the detach character (which signals dtach to detach from +the program) and processing the suspend key (which tells dtach to +temporarily suspend itself without affecting the running program), and both +of these can both be disabled if desired. + +Contrary to screen, dtach has minimal features, and is extremely tiny. +This allows dtach to be more easily audited for bugs and security +holes, and makes it accessible in environments where space is limited, +such as on rescue disks. + +dtach has only been tested on the Linux/x86 platform, however it should +be easily portable to other variants of Unix. It currently assumes that +the host system uses POSIX termios, and has a working forkpty function +available. + +dtach may need access to various devices in the filesystem depending on what +forkpty does. For example, dtach on Linux usually needs access to /dev/ptmx +and /dev/pts. + +2. QUICK START + +Compiling dtach should be simple, as it uses autoconf: + + $ ./configure + $ make + +If all goes well, a dtach binary should be built for your system. You can +then copy it to the appropriate place on your system. + +dtach uses Unix-domain sockets to represent sessions; these are network +sockets that are stored in the filesystem. You specify the name of the +socket that dtach should use when creating or attaching to dtach sessions. + +For example, let's create a new session that is running ircII. We will use +/tmp/foozle as the session's socket: + + $ dtach -A /tmp/foozle irc RuneB irc.freenode.net + +Here, -A tells dtach to either create a new session or attach to the +existing session. If the session at /tmp/foozle does not exist yet, the +program will be executed. If it does exist, then dtach will attach to +the existing session. + +dtach has another attach mode, which is specified by using -a. The -a +mode attaches to an already existing session, but will not create a new +session. Each attaching process can have a separate detach character, +suspend behavior, and redraw method, which are explained in the +following sections. + +dtach is able to attach to the same session multiple times, though you +will likely encounter problems if your terminals have different window +sizes. Pressing ^L (Ctrl-L) will reset the window size of the program to +match the current terminal. + +dtach also has a mode that copies the contents of standard input to a session. +For example: + + $ echo -ne 'cd /var/log\nls -l\n' | dtach -p /tmp/foozle + +The contents are sent verbatim including any embedded control characters (e.g. +the newline characters in the above example), and dtach will not scan the +input for a detach character. + +3. DETACHING FROM THE SESSION + +By default, dtach scans the keyboard input looking for the detach character. +When the detach character is pressed, dtach will detach from the current +session and exit, leaving the program running in the background. You can then +re-attach to the program by running dtach again with -A or -a. + +The default detach character is ^\ (Ctrl-\). This can be changed by supplying +the -e option to dtach when attaching. For example: + + $ dtach -a /tmp/foozle -e '^A' + +That command would attach to the existing session at /tmp/foozle and use +^A (Ctrl-A) as the detach character, instead of the default ^\. + +You can disable processing of the detach character by supplying the -E +option to dtach when attaching. + +4. SUSPENDING DTACH + +By default, dtach also processes the suspend key (^Z or Ctrl-Z) itself, +instead of passing it to the program. Thus, pressing suspend only suspends +the attaching process, instead of the running program. This can be very +useful for applications such as ircII, where you may not necessarily want +the program to be suspended. + +Processing of the suspend key can be disabled by supplying the -z option +to dtach when attaching. + +5. REDRAW METHOD + +When attaching, dtach can use one of three methods to redraw the screen +(none, ctrl_l, or winch). By default, dtach uses the ctrl_l method, +which simply sends a ^L (Ctrl-L) character to the program if the +terminal is in character-at-a-time and no-echo mode. The winch method +forces a WINCH signal to be sent to the program, and the none method +disables redrawing completely. + +For example, this command tells dtach to attach to a session at +/tmp/foozle and use the winch redraw method: + + $ dtach -a /tmp/foozle -r winch + +When creating a new session (with the -c or -A modes), the specified +method is used as the default redraw method for the session. + +6. CHANGES + +The changes in version 0.9 are: +- Added AIX support. +- Added dtach -N, a mode similar to dtach -n, except dtach will stay in the + foreground instead of daemonizing. +- Added dtach -p, which copies the contents of standard input to a session. +- dtach will no longer send 255 bytes of garbage to the program when read() + returns an error. +- The executable bit is now set on the socket if clients are attached, and + cleared when all clients have detached. +- The initial state of signals such as SIGPIPE are now preserved when + executing the program, instead of having the program start with some signals + ignored. +- A buffer overflow no longer occurs when a long socket path name is used, and + dtach will now try to use chdir to get around the length limitation if + necessary. + +The changes in version 0.8 are: +- When using dtach -A or dtach -c, the master will now wait until the client + attaches before trying to read from the program being executed. This avoids + a race condition when the program prints something and exits before the + client can attach itself. +- Instead of exiting quietly, dtach will now report any errors that occur + while trying to execute the program. +- dtach -n can now be used without a terminal. +- dtach -A will now try to detect and remove stale sockets. +- Removed a Linux-specific escape sequence from the code that restores the + original terminal settings. +- Changed dtach.1 to use \- for the dashes in command line options, and + fix an ambiguous backslash. +- Use non-blocking mode in the master process, and avoid data loss by ensuring + that at least one attaching client succesfully completes a write. +- Fix -e ^ to work with lowercase characters. + +The changes in version 0.7 are: +- The redraw method can now be explicitly specified on the command line + (either no redraw at all, the old ^L character method, and the new WINCH + signal method), since many programs only handle one or the other properly. +- Changed the default redraw method back to the old ^L character method. +- Changed the attach code to check the return value of select more carefully. +- Changed the SIGWINCH handler to reinstall itself, to handle systems that + always reset the handler. +- Added more proper process group handling. + +The changes in version 0.6 are: +- Redraws are now handled by sending the child process a WINCH signal instead + of by sending a ^L character. This should help prevent line-oriented + programs (such as bash) from clearing the screen excessively. +- Flow control is now disabled when setting raw mode on the terminal. +- Switched to using select instead of poll. +- Changed some exits to exit succesfully instead of non-sucessfully. +- Updated my email address. +- Updated to Autoconf 2.59, renaming some files in the process. + +The changes in version 0.5 are: +- Fix fd leakage. +- Prevent atexit from being called twice on dtach -A. + +The changes in version 0.4 are: +- Slightly improved README and dtach.1 +- Portability updates thanks to sourceforge's compile farm. dtach should now + work on: FreeBSD, Debian/alpha, Debian/sparc, Debian/PPC, and Solaris. + +The changes in version 0.3 are: +- Fixed a typo in dtach.1 +- Changed the attach code so that it tells the master when a suspend + occurs. +- Decreased the client <-> master packet size. +- Changed the master to send a stream of text to attaching clients + instead of sending a huge packet all the time. +- Use getrlimit and dynamically allocate the data structures, if + possible. +- Added some more autoconf checks. +- Initial sourceforge release. + +7. AUTHOR + +dtach is (C)Copyright 2004-2016 Ned T. Crigler, and is under the GNU General +Public License. + +Comments and suggestions about dtach are welcome, and can be sent to +the author at: . diff --git a/attach.c b/attach.c new file mode 100644 index 0000000..41a696c --- /dev/null +++ b/attach.c @@ -0,0 +1,360 @@ +/* + dtach - A simple program that emulates the detach feature of screen. + Copyright (C) 2004-2016 Ned T. Crigler + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +#include "dtach.h" + +#ifndef VDISABLE +#ifdef _POSIX_VDISABLE +#define VDISABLE _POSIX_VDISABLE +#else +#define VDISABLE 0377 +#endif +#endif + +/* +** The current terminal settings. After coming back from a suspend, we +** restore this. +*/ +static struct termios cur_term; +/* 1 if the window size changed */ +static int win_changed; + +/* Restores the original terminal settings. */ +static void +restore_term(void) +{ + tcsetattr(0, TCSADRAIN, &orig_term); + + /* Make cursor visible. Assumes VT100. */ + printf("\033[?25h"); + fflush(stdout); +} + +/* Connects to a unix domain socket */ +static int +connect_socket(char *name) +{ + int s; + struct sockaddr_un sockun; + + if (strlen(name) > sizeof(sockun.sun_path) - 1) + { + errno = ENAMETOOLONG; + return -1; + } + + s = socket(PF_UNIX, SOCK_STREAM, 0); + if (s < 0) + return -1; + sockun.sun_family = AF_UNIX; + strcpy(sockun.sun_path, name); + if (connect(s, (struct sockaddr*)&sockun, sizeof(sockun)) < 0) + { + close(s); + + /* ECONNREFUSED is also returned for regular files, so make + ** sure we are trying to connect to a socket. */ + if (errno == ECONNREFUSED) + { + struct stat st; + + if (stat(name, &st) < 0) + return -1; + else if (!S_ISSOCK(st.st_mode) || S_ISREG(st.st_mode)) + errno = ENOTSOCK; + } + return -1; + } + return s; +} + +/* Signal */ +static RETSIGTYPE +die(int sig) +{ + /* Print a nice pretty message for some things. */ + if (sig == SIGHUP || sig == SIGINT) + printf(EOS "\r\n[detached]\r\n"); + else + printf(EOS "\r\n[got signal %d - dying]\r\n", sig); + exit(1); +} + +/* Window size change. */ +static RETSIGTYPE +win_change() +{ + signal(SIGWINCH, win_change); + win_changed = 1; +} + +/* Handles input from the keyboard. */ +static void +process_kbd(int s, struct packet *pkt) +{ + /* Suspend? */ + if (!no_suspend && (pkt->u.buf[0] == cur_term.c_cc[VSUSP])) + { + /* Tell the master that we are suspending. */ + pkt->type = MSG_DETACH; + write(s, pkt, sizeof(struct packet)); + + /* And suspend... */ + tcsetattr(0, TCSADRAIN, &orig_term); + printf(EOS "\r\n"); + kill(getpid(), SIGTSTP); + tcsetattr(0, TCSADRAIN, &cur_term); + + /* Tell the master that we are returning. */ + pkt->type = MSG_ATTACH; + write(s, pkt, sizeof(struct packet)); + + /* We would like a redraw, too. */ + pkt->type = MSG_REDRAW; + pkt->len = redraw_method; + ioctl(0, TIOCGWINSZ, &pkt->u.ws); + write(s, pkt, sizeof(struct packet)); + return; + } + /* Detach char? */ + else if (pkt->u.buf[0] == detach_char) + { + printf(EOS "\r\n[detached]\r\n"); + exit(0); + } + /* Just in case something pukes out. */ + else if (pkt->u.buf[0] == '\f') + win_changed = 1; + + /* Push it out */ + write(s, pkt, sizeof(struct packet)); +} + +int +attach_main(int noerror) +{ + struct packet pkt; + unsigned char buf[BUFSIZE]; + fd_set readfds; + int s; + + /* Attempt to open the socket. Don't display an error if noerror is + ** set. */ + s = connect_socket(sockname); + if (s < 0 && errno == ENAMETOOLONG) + { + char *slash = strrchr(sockname, '/'); + + /* Try to shorten the socket's path name by using chdir. */ + if (slash) + { + int dirfd = open(".", O_RDONLY); + + if (dirfd >= 0) + { + *slash = '\0'; + if (chdir(sockname) >= 0) + { + s = connect_socket(slash + 1); + fchdir(dirfd); + } + *slash = '/'; + close(dirfd); + } + } + } + if (s < 0) + { + if (!noerror) + printf("%s: %s: %s\n", progname, sockname, + strerror(errno)); + return 1; + } + + /* The current terminal settings are equal to the original terminal + ** settings at this point. */ + cur_term = orig_term; + + /* Set a trap to restore the terminal when we die. */ + atexit(restore_term); + + /* Set some signals. */ + signal(SIGPIPE, SIG_IGN); + signal(SIGXFSZ, SIG_IGN); + signal(SIGHUP, die); + signal(SIGTERM, die); + signal(SIGINT, die); + signal(SIGQUIT, die); + signal(SIGWINCH, win_change); + + /* Set raw mode. */ + cur_term.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL); + cur_term.c_iflag &= ~(IXON|IXOFF); + cur_term.c_oflag &= ~(OPOST); + cur_term.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); + cur_term.c_cflag &= ~(CSIZE|PARENB); + cur_term.c_cflag |= CS8; + cur_term.c_cc[VLNEXT] = VDISABLE; + cur_term.c_cc[VMIN] = 1; + cur_term.c_cc[VTIME] = 0; + tcsetattr(0, TCSADRAIN, &cur_term); + + /* Clear the screen. This assumes VT100. */ + write(1, "\33[H\33[J", 6); + + /* Tell the master that we want to attach. */ + memset(&pkt, 0, sizeof(struct packet)); + pkt.type = MSG_ATTACH; + write(s, &pkt, sizeof(struct packet)); + + /* We would like a redraw, too. */ + pkt.type = MSG_REDRAW; + pkt.len = redraw_method; + ioctl(0, TIOCGWINSZ, &pkt.u.ws); + write(s, &pkt, sizeof(struct packet)); + + /* Wait for things to happen */ + while (1) + { + int n; + + FD_ZERO(&readfds); + FD_SET(0, &readfds); + FD_SET(s, &readfds); + n = select(s + 1, &readfds, NULL, NULL, NULL); + if (n < 0 && errno != EINTR && errno != EAGAIN) + { + printf(EOS "\r\n[select failed]\r\n"); + exit(1); + } + + /* Pty activity */ + if (n > 0 && FD_ISSET(s, &readfds)) + { + ssize_t len = read(s, buf, sizeof(buf)); + + if (len == 0) + { + printf(EOS "\r\n[EOF - dtach terminating]" + "\r\n"); + exit(0); + } + else if (len < 0) + { + printf(EOS "\r\n[read returned an error]\r\n"); + exit(1); + } + /* Send the data to the terminal. */ + write(1, buf, len); + n--; + } + /* stdin activity */ + if (n > 0 && FD_ISSET(0, &readfds)) + { + ssize_t len; + + pkt.type = MSG_PUSH; + memset(pkt.u.buf, 0, sizeof(pkt.u.buf)); + len = read(0, pkt.u.buf, sizeof(pkt.u.buf)); + + if (len <= 0) + exit(1); + + pkt.len = len; + process_kbd(s, &pkt); + n--; + } + + /* Window size changed? */ + if (win_changed) + { + win_changed = 0; + + pkt.type = MSG_WINCH; + ioctl(0, TIOCGWINSZ, &pkt.u.ws); + write(s, &pkt, sizeof(pkt)); + } + } + return 0; +} + +int +push_main() +{ + struct packet pkt; + int s; + + /* Attempt to open the socket. */ + s = connect_socket(sockname); + if (s < 0 && errno == ENAMETOOLONG) + { + char *slash = strrchr(sockname, '/'); + + /* Try to shorten the socket's path name by using chdir. */ + if (slash) + { + int dirfd = open(".", O_RDONLY); + + if (dirfd >= 0) + { + *slash = '\0'; + if (chdir(sockname) >= 0) + { + s = connect_socket(slash + 1); + fchdir(dirfd); + } + *slash = '/'; + close(dirfd); + } + } + } + if (s < 0) + { + printf("%s: %s: %s\n", progname, sockname, strerror(errno)); + return 1; + } + + /* Set some signals. */ + signal(SIGPIPE, SIG_IGN); + + /* Push the contents of standard input to the socket. */ + pkt.type = MSG_PUSH; + for (;;) + { + ssize_t len; + + memset(pkt.u.buf, 0, sizeof(pkt.u.buf)); + len = read(0, pkt.u.buf, sizeof(pkt.u.buf)); + + if (len == 0) + return 0; + else if (len < 0) + { + printf("%s: %s: %s\n", progname, sockname, + strerror(errno)); + return 1; + } + + pkt.len = len; + if (write(s, &pkt, sizeof(struct packet)) < 0) + { + printf("%s: %s: %s\n", progname, sockname, + strerror(errno)); + return 1; + } + } +} diff --git a/config.h b/config.h new file mode 100644 index 0000000..d71064f --- /dev/null +++ b/config.h @@ -0,0 +1,137 @@ +/* config.h. Generated from config.h.in by configure. */ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define to 1 if you have the `atexit' function. */ +#define HAVE_ATEXIT 1 + +/* Define to 1 if you have the `dup2' function. */ +#define HAVE_DUP2 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_FCNTL_H 1 + +/* Define to 1 if you have the `forkpty' function. */ +#define HAVE_FORKPTY 1 + +/* Define to 1 if you have the `grantpt' function. */ +#define HAVE_GRANTPT 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_INTTYPES_H 1 + +/* Define to 1 if you have the `socket' library (-lsocket). */ +/* #undef HAVE_LIBSOCKET */ + +/* Define to 1 if you have the `util' library (-lutil). */ +#define HAVE_LIBUTIL 1 + +/* Define to 1 if you have the header file. */ +/* #undef HAVE_LIBUTIL_H */ + +/* Define to 1 if you have the header file. */ +#define HAVE_MEMORY_H 1 + +/* Define to 1 if you have the `memset' function. */ +#define HAVE_MEMSET 1 + +/* Define to 1 if you have the `openpty' function. */ +#define HAVE_OPENPTY 1 + +/* Define to 1 if you have the `ptsname' function. */ +#define HAVE_PTSNAME 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_PTY_H 1 + +/* Define to 1 if you have the `select' function. */ +#define HAVE_SELECT 1 + +/* Define to 1 if you have the `socket' function. */ +#define HAVE_SOCKET 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_STDINT_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_STDLIB_H 1 + +/* Define to 1 if you have the `strerror' function. */ +#define HAVE_STRERROR 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_STRINGS_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_STRING_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_STROPTS_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_SYS_IOCTL_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_SYS_RESOURCE_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_SYS_SELECT_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_SYS_SOCKET_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_SYS_STAT_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_SYS_TIME_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_SYS_TYPES_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_TERMIOS_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_UNISTD_H 1 + +/* Define to 1 if you have the `unlockpt' function. */ +#define HAVE_UNLOCKPT 1 + +/* Define to 1 if you have the header file. */ +/* #undef HAVE_UTIL_H */ + +/* Define to the address where bug reports for this package should be sent. */ +#define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" + +/* Define to the full name of this package. */ +#define PACKAGE_NAME "dtach" + +/* Define to the full name and version of this package. */ +#define PACKAGE_STRING "dtach 0.9" + +/* Define to the one symbol short name of this package. */ +#define PACKAGE_TARNAME "dtach" + +/* Define to the home page for this package. */ +#define PACKAGE_URL "" + +/* Define to the version of this package. */ +#define PACKAGE_VERSION "0.9" + +/* Define as the return type of signal handlers (`int' or `void'). */ +#define RETSIGTYPE void + +/* Define to 1 if you have the ANSI C header files. */ +#define STDC_HEADERS 1 + +/* Define to 1 if you can safely include both and . */ +#define TIME_WITH_SYS_TIME 1 + +/* Define to empty if `const' does not conform to ANSI C. */ +/* #undef const */ + +/* Define to `int' if does not define. */ +/* #undef pid_t */ + +/* Define to `int' if does not define. */ +/* #undef ssize_t */ diff --git a/config.h.in b/config.h.in new file mode 100644 index 0000000..1932fde --- /dev/null +++ b/config.h.in @@ -0,0 +1,136 @@ +/* config.h.in. Generated from configure.ac by autoheader. */ + +/* Define to 1 if you have the `atexit' function. */ +#undef HAVE_ATEXIT + +/* Define to 1 if you have the `dup2' function. */ +#undef HAVE_DUP2 + +/* Define to 1 if you have the header file. */ +#undef HAVE_FCNTL_H + +/* Define to 1 if you have the `forkpty' function. */ +#undef HAVE_FORKPTY + +/* Define to 1 if you have the `grantpt' function. */ +#undef HAVE_GRANTPT + +/* Define to 1 if you have the header file. */ +#undef HAVE_INTTYPES_H + +/* Define to 1 if you have the `socket' library (-lsocket). */ +#undef HAVE_LIBSOCKET + +/* Define to 1 if you have the `util' library (-lutil). */ +#undef HAVE_LIBUTIL + +/* Define to 1 if you have the header file. */ +#undef HAVE_LIBUTIL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_MEMORY_H + +/* Define to 1 if you have the `memset' function. */ +#undef HAVE_MEMSET + +/* Define to 1 if you have the `openpty' function. */ +#undef HAVE_OPENPTY + +/* Define to 1 if you have the `ptsname' function. */ +#undef HAVE_PTSNAME + +/* Define to 1 if you have the header file. */ +#undef HAVE_PTY_H + +/* Define to 1 if you have the `select' function. */ +#undef HAVE_SELECT + +/* Define to 1 if you have the `socket' function. */ +#undef HAVE_SOCKET + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDINT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STDLIB_H + +/* Define to 1 if you have the `strerror' function. */ +#undef HAVE_STRERROR + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRINGS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STRING_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_STROPTS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_IOCTL_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_RESOURCE_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_SELECT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_SOCKET_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_STAT_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_TIME_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_SYS_TYPES_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_TERMIOS_H + +/* Define to 1 if you have the header file. */ +#undef HAVE_UNISTD_H + +/* Define to 1 if you have the `unlockpt' function. */ +#undef HAVE_UNLOCKPT + +/* Define to 1 if you have the header file. */ +#undef HAVE_UTIL_H + +/* Define to the address where bug reports for this package should be sent. */ +#undef PACKAGE_BUGREPORT + +/* Define to the full name of this package. */ +#undef PACKAGE_NAME + +/* Define to the full name and version of this package. */ +#undef PACKAGE_STRING + +/* Define to the one symbol short name of this package. */ +#undef PACKAGE_TARNAME + +/* Define to the home page for this package. */ +#undef PACKAGE_URL + +/* Define to the version of this package. */ +#undef PACKAGE_VERSION + +/* Define as the return type of signal handlers (`int' or `void'). */ +#undef RETSIGTYPE + +/* Define to 1 if you have the ANSI C header files. */ +#undef STDC_HEADERS + +/* Define to 1 if you can safely include both and . */ +#undef TIME_WITH_SYS_TIME + +/* Define to empty if `const' does not conform to ANSI C. */ +#undef const + +/* Define to `int' if does not define. */ +#undef pid_t + +/* Define to `int' if does not define. */ +#undef ssize_t diff --git a/config.log b/config.log new file mode 100644 index 0000000..160ff30 --- /dev/null +++ b/config.log @@ -0,0 +1,1016 @@ +This file contains any messages produced by compilers while +running configure, to aid debugging if configure makes a mistake. + +It was created by dtach configure 0.9, which was +generated by GNU Autoconf 2.69. Invocation command line was + + $ ./configure + +## --------- ## +## Platform. ## +## --------- ## + +hostname = ifh-taifun +uname -m = x86_64 +uname -r = 4.19.0-14-amd64 +uname -s = Linux +uname -v = #1 SMP Debian 4.19.171-2 (2021-01-30) + +/usr/bin/uname -p = unknown +/bin/uname -X = unknown + +/bin/arch = x86_64 +/usr/bin/arch -k = unknown +/usr/convex/getsysinfo = unknown +/usr/bin/hostinfo = unknown +/bin/machine = unknown +/usr/bin/oslevel = unknown +/bin/universe = unknown + +PATH: /home/stumpf/.local/opt/rust/cargo//bin +PATH: /home/stumpf/perl5/bin +PATH: /home/stumpf/git/ucftools//python/ucf/tools +PATH: /home/stumpf/git/ucftools//python +PATH: /home/stumpf/git/ucftools//bash +PATH: /home/stumpf/Projects/MOAT/pp_fd//python/monsoon-data-center/ +PATH: /opt/openmpi/openmpi-4.0.1-GNU8/bin/ +PATH: /home/stumpf/.local/opt/ParaView-5.7.0-osmesa-MPI-Linux-Python3.7-64bit/bin +PATH: /home/stumpf/.local/opt/pip3-ifh-taifun//bin/ +PATH: /home/stumpf/.local/opt/bazel-3.7.2 +PATH: /home/stumpf/.local/bin/ +PATH: /home/stumpf/scripts/ +PATH: /home/stumpf/Projects/MOAT/pp_fd/bash/ +PATH: /home/stumpf/.local/opt/hdf5-1.10.5/install/bin/ +PATH: /home/stumpf/.local/opt/cmake-3.15.4-Linux-x86_64/bin/ +PATH: /home/stumpf/.local/opt/ffmpeg-4.3.1-amd64-static +PATH: /home/stumpf/invariant_solutions/channelflow-2.0/install/bin +PATH: /home/stumpf/.local/opt/tmux/install-ifh-taifun/bin +PATH: /opt/intel/v2019_u5/bin/ +PATH: /opt/pbspro/default/bin/ +PATH: /home/stumpf/.local/opt/julia-1.4.1/bin/ +PATH: /home/stumpf/.local/opt/viu/target/release/ +PATH: /home/stumpf/.autojump/bin +PATH: /usr/local/bin +PATH: /usr/bin +PATH: /bin +PATH: /usr/local/games +PATH: /usr/games +PATH: /opt/pbspro/june2020/bin + + +## ----------- ## +## Core tests. ## +## ----------- ## + +configure:2190: checking for gcc +configure:2206: found /usr/bin/gcc +configure:2217: result: gcc +configure:2446: checking for C compiler version +configure:2455: gcc --version >&5 +gcc (Debian 8.3.0-6) 8.3.0 +Copyright (C) 2018 Free Software Foundation, Inc. +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + +configure:2466: $? = 0 +configure:2455: gcc -v >&5 +Using built-in specs. +COLLECT_GCC=gcc +COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper +OFFLOAD_TARGET_NAMES=nvptx-none +OFFLOAD_TARGET_DEFAULT=1 +Target: x86_64-linux-gnu +Configured with: ../src/configure -v --with-pkgversion='Debian 8.3.0-6' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu +Thread model: posix +gcc version 8.3.0 (Debian 8.3.0-6) +configure:2466: $? = 0 +configure:2455: gcc -V >&5 +gcc: error: unrecognized command line option '-V' +gcc: fatal error: no input files +compilation terminated. +configure:2466: $? = 1 +configure:2455: gcc -qversion >&5 +gcc: error: unrecognized command line option '-qversion'; did you mean '--version'? +gcc: fatal error: no input files +compilation terminated. +configure:2466: $? = 1 +configure:2486: checking whether the C compiler works +configure:2508: gcc conftest.c >&5 +configure:2512: $? = 0 +configure:2560: result: yes +configure:2563: checking for C compiler default output file name +configure:2565: result: a.out +configure:2571: checking for suffix of executables +configure:2578: gcc -o conftest conftest.c >&5 +configure:2582: $? = 0 +configure:2604: result: +configure:2626: checking whether we are cross compiling +configure:2634: gcc -o conftest conftest.c >&5 +configure:2638: $? = 0 +configure:2645: ./conftest +configure:2649: $? = 0 +configure:2637: result: no +configure:2642: checking for suffix of object files +configure:2664: gcc -c conftest.c >&5 +configure:2668: $? = 0 +configure:2689: result: o +configure:2693: checking whether we are using the GNU C compiler +configure:2712: gcc -c conftest.c >&5 +configure:2712: $? = 0 +configure:2721: result: yes +configure:2730: checking whether gcc accepts -g +configure:2750: gcc -c -g conftest.c >&5 +configure:2750: $? = 0 +configure:2791: result: yes +configure:2808: checking for gcc option to accept ISO C89 +configure:2871: gcc -c -g -O2 conftest.c >&5 +configure:2871: $? = 0 +configure:2884: result: none needed +configure:2910: checking how to run the C preprocessor +configure:2941: gcc -E conftest.c +configure:2941: $? = 0 +configure:2955: gcc -E conftest.c +conftest.c:9:10: fatal error: ac_nonexistent.h: No such file or directory + #include + ^~~~~~~~~~~~~~~~~~ +compilation terminated. +configure:2955: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| /* end confdefs.h. */ +| #include +configure:2980: result: gcc -E +configure:3000: gcc -E conftest.c +configure:3000: $? = 0 +configure:3014: gcc -E conftest.c +conftest.c:9:10: fatal error: ac_nonexistent.h: No such file or directory + #include + ^~~~~~~~~~~~~~~~~~ +compilation terminated. +configure:3014: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| /* end confdefs.h. */ +| #include +configure:3043: checking for grep that handles long lines and -e +configure:3101: result: /usr/bin/grep +configure:3106: checking for egrep +configure:3168: result: /usr/bin/grep -E +configure:3174: checking whether gcc needs -traditional +configure:3208: result: no +configure:3221: checking for openpty in -lutil +configure:3246: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3246: $? = 0 +configure:3255: result: yes +configure:3266: checking for socket in -lsocket +configure:3291: gcc -o conftest -g -O2 -W -Wall conftest.c -lsocket -lutil >&5 +/usr/bin/ld: cannot find -lsocket +collect2: error: ld returned 1 exit status +configure:3291: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| /* end confdefs.h. */ +| +| /* Override any GCC internal prototype to avoid an error. +| Use char because int might match the return type of a GCC +| builtin and then its argument prototype would still apply. */ +| #ifdef __cplusplus +| extern "C" +| #endif +| char socket (); +| int +| main () +| { +| return socket (); +| ; +| return 0; +| } +configure:3300: result: no +configure:3313: checking for ANSI C header files +configure:3333: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3333: $? = 0 +configure:3406: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3406: $? = 0 +configure:3406: ./conftest +configure:3406: $? = 0 +configure:3417: result: yes +configure:3430: checking for sys/types.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for sys/stat.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for stdlib.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for string.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for memory.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for strings.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for inttypes.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for stdint.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3430: checking for unistd.h +configure:3430: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3430: $? = 0 +configure:3430: result: yes +configure:3445: checking fcntl.h usability +configure:3445: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking fcntl.h presence +configure:3445: gcc -E conftest.c +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking for fcntl.h +configure:3445: result: yes +configure:3445: checking sys/select.h usability +configure:3445: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking sys/select.h presence +configure:3445: gcc -E conftest.c +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking for sys/select.h +configure:3445: result: yes +configure:3445: checking sys/socket.h usability +configure:3445: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking sys/socket.h presence +configure:3445: gcc -E conftest.c +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking for sys/socket.h +configure:3445: result: yes +configure:3445: checking sys/time.h usability +configure:3445: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking sys/time.h presence +configure:3445: gcc -E conftest.c +configure:3445: $? = 0 +configure:3445: result: yes +configure:3445: checking for sys/time.h +configure:3445: result: yes +configure:3458: checking sys/ioctl.h usability +configure:3458: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking sys/ioctl.h presence +configure:3458: gcc -E conftest.c +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking for sys/ioctl.h +configure:3458: result: yes +configure:3458: checking sys/resource.h usability +configure:3458: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking sys/resource.h presence +configure:3458: gcc -E conftest.c +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking for sys/resource.h +configure:3458: result: yes +configure:3458: checking pty.h usability +configure:3458: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking pty.h presence +configure:3458: gcc -E conftest.c +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking for pty.h +configure:3458: result: yes +configure:3458: checking termios.h usability +configure:3458: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking termios.h presence +configure:3458: gcc -E conftest.c +configure:3458: $? = 0 +configure:3458: result: yes +configure:3458: checking for termios.h +configure:3458: result: yes +configure:3458: checking util.h usability +configure:3458: gcc -c -g -O2 -W -Wall conftest.c >&5 +conftest.c:61:10: fatal error: util.h: No such file or directory + #include + ^~~~~~~~ +compilation terminated. +configure:3458: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| #define STDC_HEADERS 1 +| #define HAVE_SYS_TYPES_H 1 +| #define HAVE_SYS_STAT_H 1 +| #define HAVE_STDLIB_H 1 +| #define HAVE_STRING_H 1 +| #define HAVE_MEMORY_H 1 +| #define HAVE_STRINGS_H 1 +| #define HAVE_INTTYPES_H 1 +| #define HAVE_STDINT_H 1 +| #define HAVE_UNISTD_H 1 +| #define HAVE_FCNTL_H 1 +| #define HAVE_SYS_SELECT_H 1 +| #define HAVE_SYS_SOCKET_H 1 +| #define HAVE_SYS_TIME_H 1 +| #define HAVE_SYS_IOCTL_H 1 +| #define HAVE_SYS_RESOURCE_H 1 +| #define HAVE_PTY_H 1 +| #define HAVE_TERMIOS_H 1 +| /* end confdefs.h. */ +| #include +| #ifdef HAVE_SYS_TYPES_H +| # include +| #endif +| #ifdef HAVE_SYS_STAT_H +| # include +| #endif +| #ifdef STDC_HEADERS +| # include +| # include +| #else +| # ifdef HAVE_STDLIB_H +| # include +| # endif +| #endif +| #ifdef HAVE_STRING_H +| # if !defined STDC_HEADERS && defined HAVE_MEMORY_H +| # include +| # endif +| # include +| #endif +| #ifdef HAVE_STRINGS_H +| # include +| #endif +| #ifdef HAVE_INTTYPES_H +| # include +| #endif +| #ifdef HAVE_STDINT_H +| # include +| #endif +| #ifdef HAVE_UNISTD_H +| # include +| #endif +| #include +configure:3458: result: no +configure:3458: checking util.h presence +configure:3458: gcc -E conftest.c +conftest.c:28:10: fatal error: util.h: No such file or directory + #include + ^~~~~~~~ +compilation terminated. +configure:3458: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| #define STDC_HEADERS 1 +| #define HAVE_SYS_TYPES_H 1 +| #define HAVE_SYS_STAT_H 1 +| #define HAVE_STDLIB_H 1 +| #define HAVE_STRING_H 1 +| #define HAVE_MEMORY_H 1 +| #define HAVE_STRINGS_H 1 +| #define HAVE_INTTYPES_H 1 +| #define HAVE_STDINT_H 1 +| #define HAVE_UNISTD_H 1 +| #define HAVE_FCNTL_H 1 +| #define HAVE_SYS_SELECT_H 1 +| #define HAVE_SYS_SOCKET_H 1 +| #define HAVE_SYS_TIME_H 1 +| #define HAVE_SYS_IOCTL_H 1 +| #define HAVE_SYS_RESOURCE_H 1 +| #define HAVE_PTY_H 1 +| #define HAVE_TERMIOS_H 1 +| /* end confdefs.h. */ +| #include +configure:3458: result: no +configure:3458: checking for util.h +configure:3458: result: no +configure:3471: checking libutil.h usability +configure:3471: gcc -c -g -O2 -W -Wall conftest.c >&5 +conftest.c:61:10: fatal error: libutil.h: No such file or directory + #include + ^~~~~~~~~~~ +compilation terminated. +configure:3471: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| #define STDC_HEADERS 1 +| #define HAVE_SYS_TYPES_H 1 +| #define HAVE_SYS_STAT_H 1 +| #define HAVE_STDLIB_H 1 +| #define HAVE_STRING_H 1 +| #define HAVE_MEMORY_H 1 +| #define HAVE_STRINGS_H 1 +| #define HAVE_INTTYPES_H 1 +| #define HAVE_STDINT_H 1 +| #define HAVE_UNISTD_H 1 +| #define HAVE_FCNTL_H 1 +| #define HAVE_SYS_SELECT_H 1 +| #define HAVE_SYS_SOCKET_H 1 +| #define HAVE_SYS_TIME_H 1 +| #define HAVE_SYS_IOCTL_H 1 +| #define HAVE_SYS_RESOURCE_H 1 +| #define HAVE_PTY_H 1 +| #define HAVE_TERMIOS_H 1 +| /* end confdefs.h. */ +| #include +| #ifdef HAVE_SYS_TYPES_H +| # include +| #endif +| #ifdef HAVE_SYS_STAT_H +| # include +| #endif +| #ifdef STDC_HEADERS +| # include +| # include +| #else +| # ifdef HAVE_STDLIB_H +| # include +| # endif +| #endif +| #ifdef HAVE_STRING_H +| # if !defined STDC_HEADERS && defined HAVE_MEMORY_H +| # include +| # endif +| # include +| #endif +| #ifdef HAVE_STRINGS_H +| # include +| #endif +| #ifdef HAVE_INTTYPES_H +| # include +| #endif +| #ifdef HAVE_STDINT_H +| # include +| #endif +| #ifdef HAVE_UNISTD_H +| # include +| #endif +| #include +configure:3471: result: no +configure:3471: checking libutil.h presence +configure:3471: gcc -E conftest.c +conftest.c:28:10: fatal error: libutil.h: No such file or directory + #include + ^~~~~~~~~~~ +compilation terminated. +configure:3471: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| #define STDC_HEADERS 1 +| #define HAVE_SYS_TYPES_H 1 +| #define HAVE_SYS_STAT_H 1 +| #define HAVE_STDLIB_H 1 +| #define HAVE_STRING_H 1 +| #define HAVE_MEMORY_H 1 +| #define HAVE_STRINGS_H 1 +| #define HAVE_INTTYPES_H 1 +| #define HAVE_STDINT_H 1 +| #define HAVE_UNISTD_H 1 +| #define HAVE_FCNTL_H 1 +| #define HAVE_SYS_SELECT_H 1 +| #define HAVE_SYS_SOCKET_H 1 +| #define HAVE_SYS_TIME_H 1 +| #define HAVE_SYS_IOCTL_H 1 +| #define HAVE_SYS_RESOURCE_H 1 +| #define HAVE_PTY_H 1 +| #define HAVE_TERMIOS_H 1 +| /* end confdefs.h. */ +| #include +configure:3471: result: no +configure:3471: checking for libutil.h +configure:3471: result: no +configure:3471: checking stropts.h usability +configure:3471: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3471: $? = 0 +configure:3471: result: yes +configure:3471: checking stropts.h presence +configure:3471: gcc -E conftest.c +configure:3471: $? = 0 +configure:3471: result: yes +configure:3471: checking for stropts.h +configure:3471: result: yes +configure:3481: checking whether time.h and sys/time.h may both be included +configure:3501: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3501: $? = 0 +configure:3508: result: yes +configure:3518: checking for an ANSI C-conforming const +configure:3584: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3584: $? = 0 +configure:3591: result: yes +configure:3599: checking for pid_t +configure:3599: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3599: $? = 0 +configure:3599: gcc -c -g -O2 -W -Wall conftest.c >&5 +conftest.c: In function 'main': +conftest.c:66:20: error: expected expression before ')' token + if (sizeof ((pid_t))) + ^ +configure:3599: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| #define STDC_HEADERS 1 +| #define HAVE_SYS_TYPES_H 1 +| #define HAVE_SYS_STAT_H 1 +| #define HAVE_STDLIB_H 1 +| #define HAVE_STRING_H 1 +| #define HAVE_MEMORY_H 1 +| #define HAVE_STRINGS_H 1 +| #define HAVE_INTTYPES_H 1 +| #define HAVE_STDINT_H 1 +| #define HAVE_UNISTD_H 1 +| #define HAVE_FCNTL_H 1 +| #define HAVE_SYS_SELECT_H 1 +| #define HAVE_SYS_SOCKET_H 1 +| #define HAVE_SYS_TIME_H 1 +| #define HAVE_SYS_IOCTL_H 1 +| #define HAVE_SYS_RESOURCE_H 1 +| #define HAVE_PTY_H 1 +| #define HAVE_TERMIOS_H 1 +| #define HAVE_STROPTS_H 1 +| #define TIME_WITH_SYS_TIME 1 +| /* end confdefs.h. */ +| #include +| #ifdef HAVE_SYS_TYPES_H +| # include +| #endif +| #ifdef HAVE_SYS_STAT_H +| # include +| #endif +| #ifdef STDC_HEADERS +| # include +| # include +| #else +| # ifdef HAVE_STDLIB_H +| # include +| # endif +| #endif +| #ifdef HAVE_STRING_H +| # if !defined STDC_HEADERS && defined HAVE_MEMORY_H +| # include +| # endif +| # include +| #endif +| #ifdef HAVE_STRINGS_H +| # include +| #endif +| #ifdef HAVE_INTTYPES_H +| # include +| #endif +| #ifdef HAVE_STDINT_H +| # include +| #endif +| #ifdef HAVE_UNISTD_H +| # include +| #endif +| int +| main () +| { +| if (sizeof ((pid_t))) +| return 0; +| ; +| return 0; +| } +configure:3599: result: yes +configure:3610: checking for ssize_t +configure:3610: gcc -c -g -O2 -W -Wall conftest.c >&5 +configure:3610: $? = 0 +configure:3610: gcc -c -g -O2 -W -Wall conftest.c >&5 +conftest.c: In function 'main': +conftest.c:66:22: error: expected expression before ')' token + if (sizeof ((ssize_t))) + ^ +configure:3610: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| #define STDC_HEADERS 1 +| #define HAVE_SYS_TYPES_H 1 +| #define HAVE_SYS_STAT_H 1 +| #define HAVE_STDLIB_H 1 +| #define HAVE_STRING_H 1 +| #define HAVE_MEMORY_H 1 +| #define HAVE_STRINGS_H 1 +| #define HAVE_INTTYPES_H 1 +| #define HAVE_STDINT_H 1 +| #define HAVE_UNISTD_H 1 +| #define HAVE_FCNTL_H 1 +| #define HAVE_SYS_SELECT_H 1 +| #define HAVE_SYS_SOCKET_H 1 +| #define HAVE_SYS_TIME_H 1 +| #define HAVE_SYS_IOCTL_H 1 +| #define HAVE_SYS_RESOURCE_H 1 +| #define HAVE_PTY_H 1 +| #define HAVE_TERMIOS_H 1 +| #define HAVE_STROPTS_H 1 +| #define TIME_WITH_SYS_TIME 1 +| /* end confdefs.h. */ +| #include +| #ifdef HAVE_SYS_TYPES_H +| # include +| #endif +| #ifdef HAVE_SYS_STAT_H +| # include +| #endif +| #ifdef STDC_HEADERS +| # include +| # include +| #else +| # ifdef HAVE_STDLIB_H +| # include +| # endif +| #endif +| #ifdef HAVE_STRING_H +| # if !defined STDC_HEADERS && defined HAVE_MEMORY_H +| # include +| # endif +| # include +| #endif +| #ifdef HAVE_STRINGS_H +| # include +| #endif +| #ifdef HAVE_INTTYPES_H +| # include +| #endif +| #ifdef HAVE_STDINT_H +| # include +| #endif +| #ifdef HAVE_UNISTD_H +| # include +| #endif +| int +| main () +| { +| if (sizeof ((ssize_t))) +| return 0; +| ; +| return 0; +| } +configure:3610: result: yes +configure:3623: checking return type of signal handlers +configure:3641: gcc -c -g -O2 -W -Wall conftest.c >&5 +conftest.c: In function 'main': +conftest.c:36:10: error: void value not ignored as it ought to be + return *(signal (0, 0)) (0) == 1; + ~^~~~~~~~~~~~~~~~~~ +configure:3641: $? = 1 +configure: failed program was: +| /* confdefs.h */ +| #define PACKAGE_NAME "dtach" +| #define PACKAGE_TARNAME "dtach" +| #define PACKAGE_VERSION "0.9" +| #define PACKAGE_STRING "dtach 0.9" +| #define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +| #define PACKAGE_URL "" +| #define HAVE_LIBUTIL 1 +| #define STDC_HEADERS 1 +| #define HAVE_SYS_TYPES_H 1 +| #define HAVE_SYS_STAT_H 1 +| #define HAVE_STDLIB_H 1 +| #define HAVE_STRING_H 1 +| #define HAVE_MEMORY_H 1 +| #define HAVE_STRINGS_H 1 +| #define HAVE_INTTYPES_H 1 +| #define HAVE_STDINT_H 1 +| #define HAVE_UNISTD_H 1 +| #define HAVE_FCNTL_H 1 +| #define HAVE_SYS_SELECT_H 1 +| #define HAVE_SYS_SOCKET_H 1 +| #define HAVE_SYS_TIME_H 1 +| #define HAVE_SYS_IOCTL_H 1 +| #define HAVE_SYS_RESOURCE_H 1 +| #define HAVE_PTY_H 1 +| #define HAVE_TERMIOS_H 1 +| #define HAVE_STROPTS_H 1 +| #define TIME_WITH_SYS_TIME 1 +| /* end confdefs.h. */ +| #include +| #include +| +| int +| main () +| { +| return *(signal (0, 0)) (0) == 1; +| ; +| return 0; +| } +configure:3648: result: void +configure:3659: checking for atexit +configure:3659: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3659: $? = 0 +configure:3659: result: yes +configure:3659: checking for dup2 +configure:3659: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3659: $? = 0 +configure:3659: result: yes +configure:3659: checking for memset +configure:3659: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +conftest.c:56:6: warning: conflicting types for built-in function 'memset' [-Wbuiltin-declaration-mismatch] + char memset (); + ^~~~~~ +configure:3659: $? = 0 +configure:3659: result: yes +configure:3671: checking for select +configure:3671: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3671: $? = 0 +configure:3671: result: yes +configure:3671: checking for socket +configure:3671: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3671: $? = 0 +configure:3671: result: yes +configure:3671: checking for strerror +configure:3671: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3671: $? = 0 +configure:3671: result: yes +configure:3683: checking for openpty +configure:3683: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3683: $? = 0 +configure:3683: result: yes +configure:3683: checking for forkpty +configure:3683: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3683: $? = 0 +configure:3683: result: yes +configure:3683: checking for ptsname +configure:3683: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3683: $? = 0 +configure:3683: result: yes +configure:3683: checking for grantpt +configure:3683: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3683: $? = 0 +configure:3683: result: yes +configure:3683: checking for unlockpt +configure:3683: gcc -o conftest -g -O2 -W -Wall conftest.c -lutil >&5 +configure:3683: $? = 0 +configure:3683: result: yes +configure:3801: creating ./config.status + +## ---------------------- ## +## Running config.status. ## +## ---------------------- ## + +This file was extended by dtach config.status 0.9, which was +generated by GNU Autoconf 2.69. Invocation command line was + + CONFIG_FILES = + CONFIG_HEADERS = + CONFIG_LINKS = + CONFIG_COMMANDS = + $ ./config.status + +on ifh-taifun + +config.status:816: creating Makefile +config.status:816: creating config.h + +## ---------------- ## +## Cache variables. ## +## ---------------- ## + +ac_cv_c_compiler_gnu=yes +ac_cv_c_const=yes +ac_cv_env_CC_set= +ac_cv_env_CC_value= +ac_cv_env_CFLAGS_set= +ac_cv_env_CFLAGS_value= +ac_cv_env_CPPFLAGS_set= +ac_cv_env_CPPFLAGS_value= +ac_cv_env_CPP_set= +ac_cv_env_CPP_value= +ac_cv_env_LDFLAGS_set= +ac_cv_env_LDFLAGS_value= +ac_cv_env_LIBS_set= +ac_cv_env_LIBS_value= +ac_cv_env_build_alias_set= +ac_cv_env_build_alias_value= +ac_cv_env_host_alias_set= +ac_cv_env_host_alias_value= +ac_cv_env_target_alias_set= +ac_cv_env_target_alias_value= +ac_cv_func_atexit=yes +ac_cv_func_dup2=yes +ac_cv_func_forkpty=yes +ac_cv_func_grantpt=yes +ac_cv_func_memset=yes +ac_cv_func_openpty=yes +ac_cv_func_ptsname=yes +ac_cv_func_select=yes +ac_cv_func_socket=yes +ac_cv_func_strerror=yes +ac_cv_func_unlockpt=yes +ac_cv_header_fcntl_h=yes +ac_cv_header_inttypes_h=yes +ac_cv_header_libutil_h=no +ac_cv_header_memory_h=yes +ac_cv_header_pty_h=yes +ac_cv_header_stdc=yes +ac_cv_header_stdint_h=yes +ac_cv_header_stdlib_h=yes +ac_cv_header_string_h=yes +ac_cv_header_strings_h=yes +ac_cv_header_stropts_h=yes +ac_cv_header_sys_ioctl_h=yes +ac_cv_header_sys_resource_h=yes +ac_cv_header_sys_select_h=yes +ac_cv_header_sys_socket_h=yes +ac_cv_header_sys_stat_h=yes +ac_cv_header_sys_time_h=yes +ac_cv_header_sys_types_h=yes +ac_cv_header_termios_h=yes +ac_cv_header_time=yes +ac_cv_header_unistd_h=yes +ac_cv_header_util_h=no +ac_cv_lib_socket_socket=no +ac_cv_lib_util_openpty=yes +ac_cv_objext=o +ac_cv_path_EGREP='/usr/bin/grep -E' +ac_cv_path_GREP=/usr/bin/grep +ac_cv_prog_CPP='gcc -E' +ac_cv_prog_ac_ct_CC=gcc +ac_cv_prog_cc_c89= +ac_cv_prog_cc_g=yes +ac_cv_prog_gcc_traditional=no +ac_cv_type_pid_t=yes +ac_cv_type_signal=void +ac_cv_type_ssize_t=yes + +## ----------------- ## +## Output variables. ## +## ----------------- ## + +CC='gcc' +CFLAGS='-g -O2 -W -Wall' +CPP='gcc -E' +CPPFLAGS='' +DEFS='-DHAVE_CONFIG_H' +ECHO_C='' +ECHO_N='-n' +ECHO_T='' +EGREP='/usr/bin/grep -E' +EXEEXT='' +GREP='/usr/bin/grep' +LDFLAGS='' +LIBOBJS='' +LIBS='-lutil ' +LTLIBOBJS='' +OBJEXT='o' +PACKAGE_BUGREPORT='crigler@users.sourceforge.net' +PACKAGE_NAME='dtach' +PACKAGE_STRING='dtach 0.9' +PACKAGE_TARNAME='dtach' +PACKAGE_URL='' +PACKAGE_VERSION='0.9' +PATH_SEPARATOR=':' +SHELL='/bin/bash' +ac_ct_CC='gcc' +bindir='${exec_prefix}/bin' +build_alias='' +datadir='${datarootdir}' +datarootdir='${prefix}/share' +docdir='${datarootdir}/doc/${PACKAGE_TARNAME}' +dvidir='${docdir}' +exec_prefix='${prefix}' +host_alias='' +htmldir='${docdir}' +includedir='${prefix}/include' +infodir='${datarootdir}/info' +libdir='${exec_prefix}/lib' +libexecdir='${exec_prefix}/libexec' +localedir='${datarootdir}/locale' +localstatedir='${prefix}/var' +mandir='${datarootdir}/man' +oldincludedir='/usr/include' +pdfdir='${docdir}' +prefix='/usr/local' +program_transform_name='s,x,x,' +psdir='${docdir}' +sbindir='${exec_prefix}/sbin' +sharedstatedir='${prefix}/com' +sysconfdir='${prefix}/etc' +target_alias='' + +## ----------- ## +## confdefs.h. ## +## ----------- ## + +/* confdefs.h */ +#define PACKAGE_NAME "dtach" +#define PACKAGE_TARNAME "dtach" +#define PACKAGE_VERSION "0.9" +#define PACKAGE_STRING "dtach 0.9" +#define PACKAGE_BUGREPORT "crigler@users.sourceforge.net" +#define PACKAGE_URL "" +#define HAVE_LIBUTIL 1 +#define STDC_HEADERS 1 +#define HAVE_SYS_TYPES_H 1 +#define HAVE_SYS_STAT_H 1 +#define HAVE_STDLIB_H 1 +#define HAVE_STRING_H 1 +#define HAVE_MEMORY_H 1 +#define HAVE_STRINGS_H 1 +#define HAVE_INTTYPES_H 1 +#define HAVE_STDINT_H 1 +#define HAVE_UNISTD_H 1 +#define HAVE_FCNTL_H 1 +#define HAVE_SYS_SELECT_H 1 +#define HAVE_SYS_SOCKET_H 1 +#define HAVE_SYS_TIME_H 1 +#define HAVE_SYS_IOCTL_H 1 +#define HAVE_SYS_RESOURCE_H 1 +#define HAVE_PTY_H 1 +#define HAVE_TERMIOS_H 1 +#define HAVE_STROPTS_H 1 +#define TIME_WITH_SYS_TIME 1 +#define RETSIGTYPE void +#define HAVE_ATEXIT 1 +#define HAVE_DUP2 1 +#define HAVE_MEMSET 1 +#define HAVE_SELECT 1 +#define HAVE_SOCKET 1 +#define HAVE_STRERROR 1 +#define HAVE_OPENPTY 1 +#define HAVE_FORKPTY 1 +#define HAVE_PTSNAME 1 +#define HAVE_GRANTPT 1 +#define HAVE_UNLOCKPT 1 + +configure: exit 0 diff --git a/config.status b/config.status new file mode 100755 index 0000000..012daf4 --- /dev/null +++ b/config.status @@ -0,0 +1,1010 @@ +#! /bin/bash +# Generated by configure. +# Run this file to recreate the current configuration. +# Compiler output produced by configure, useful for debugging +# configure, is in config.log if it exists. + +debug=false +ac_cs_recheck=false +ac_cs_silent=false + +SHELL=${CONFIG_SHELL-/bin/bash} +export SHELL +## -------------------- ## +## M4sh Initialization. ## +## -------------------- ## + +# Be more Bourne compatible +DUALCASE=1; export DUALCASE # for MKS sh +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p +if mkdir -p . 2>/dev/null; then + as_mkdir_p='mkdir -p "$as_dir"' +else + test -d ./-p && rmdir ./-p + as_mkdir_p=false +fi + + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +as_test_x='test -x' +as_executable_p=as_fn_executable_p + +# Sed expression to map a string onto a valid CPP name. +as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'" + +# Sed expression to map a string onto a valid variable name. +as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'" + + +exec 6>&1 +## ----------------------------------- ## +## Main body of $CONFIG_STATUS script. ## +## ----------------------------------- ## +# Save the log message, to keep $0 and so on meaningful, and to +# report actual input values of CONFIG_FILES etc. instead of their +# values after options handling. +ac_log=" +This file was extended by dtach $as_me 0.9, which was +generated by GNU Autoconf 2.69. Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +# Files that config.status was made for. +config_files=" Makefile" +config_headers=" config.h" + +ac_cs_usage="\ +\`$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... [TAG]... + + -h, --help print this help, then exit + -V, --version print version number and configuration settings, then exit + --config print configuration, then exit + -q, --quiet, --silent + do not print progress messages + -d, --debug don't remove temporary files + --recheck update $as_me by reconfiguring in the same conditions + --file=FILE[:TEMPLATE] + instantiate the configuration file FILE + --header=FILE[:TEMPLATE] + instantiate the configuration header FILE + +Configuration files: +$config_files + +Configuration headers: +$config_headers + +Report bugs to ." + +ac_cs_config="" +ac_cs_version="\ +dtach config.status 0.9 +configured by ./configure, generated by GNU Autoconf 2.69, + with options \"$ac_cs_config\" + +Copyright (C) 2012 Free Software Foundation, Inc. +This config.status script is free software; the Free Software Foundation +gives unlimited permission to copy, distribute and modify it." + +ac_pwd='/home/stumpf/.local/opt/dtach' +srcdir='.' +test -n "$AWK" || AWK=awk +# The default lists apply if the user does not specify any file. +ac_need_defaults=: +while test $# != 0 +do + case $1 in + --*=?*) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'` + ac_shift=: + ;; + --*=) + ac_option=`expr "X$1" : 'X\([^=]*\)='` + ac_optarg= + ac_shift=: + ;; + *) + ac_option=$1 + ac_optarg=$2 + ac_shift=shift + ;; + esac + + case $ac_option in + # Handling of the options. + -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) + ac_cs_recheck=: ;; + --version | --versio | --versi | --vers | --ver | --ve | --v | -V ) + $as_echo "$ac_cs_version"; exit ;; + --config | --confi | --conf | --con | --co | --c ) + $as_echo "$ac_cs_config"; exit ;; + --debug | --debu | --deb | --de | --d | -d ) + debug=: ;; + --file | --fil | --fi | --f ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + '') as_fn_error $? "missing file argument" ;; + esac + as_fn_append CONFIG_FILES " '$ac_optarg'" + ac_need_defaults=false;; + --header | --heade | --head | --hea ) + $ac_shift + case $ac_optarg in + *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + as_fn_append CONFIG_HEADERS " '$ac_optarg'" + ac_need_defaults=false;; + --he | --h) + # Conflict between --help and --header + as_fn_error $? "ambiguous option: \`$1' +Try \`$0 --help' for more information.";; + --help | --hel | -h ) + $as_echo "$ac_cs_usage"; exit ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil | --si | --s) + ac_cs_silent=: ;; + + # This is an error. + -*) as_fn_error $? "unrecognized option: \`$1' +Try \`$0 --help' for more information." ;; + + *) as_fn_append ac_config_targets " $1" + ac_need_defaults=false ;; + + esac + shift +done + +ac_configure_extra_args= + +if $ac_cs_silent; then + exec 6>/dev/null + ac_configure_extra_args="$ac_configure_extra_args --silent" +fi + +if $ac_cs_recheck; then + set X /bin/bash './configure' $ac_configure_extra_args --no-create --no-recursion + shift + $as_echo "running CONFIG_SHELL=/bin/bash $*" >&6 + CONFIG_SHELL='/bin/bash' + export CONFIG_SHELL + exec "$@" +fi + +exec 5>>config.log +{ + echo + sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX +## Running $as_me. ## +_ASBOX + $as_echo "$ac_log" +} >&5 + + +# Handling of arguments. +for ac_config_target in $ac_config_targets +do + case $ac_config_target in + "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;; + "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;; + + *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;; + esac +done + + +# If the user did not use the arguments to specify the items to instantiate, +# then the envvar interface is used. Set only those that are not. +# We use the long form for the default assignment because of an extremely +# bizarre bug on SunOS 4.1.3. +if $ac_need_defaults; then + test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files + test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers +fi + +# Have a temporary directory for convenience. Make it in the build tree +# simply because there is no reason against having it here, and in addition, +# creating and moving files from /tmp can sometimes cause problems. +# Hook for its removal unless debugging. +# Note that there is a small window in which the directory will not be cleaned: +# after its creation but before its name has been assigned to `$tmp'. +$debug || +{ + tmp= ac_tmp= + trap 'exit_status=$? + : "${ac_tmp:=$tmp}" + { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status +' 0 + trap 'as_fn_exit 1' 1 2 13 15 +} +# Create a (secure) tmp directory for tmp files. + +{ + tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` && + test -d "$tmp" +} || +{ + tmp=./conf$$-$RANDOM + (umask 077 && mkdir "$tmp") +} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +cat >>"$ac_tmp/subs1.awk" <<\_ACAWK && +S["LTLIBOBJS"]="" +S["LIBOBJS"]="" +S["EGREP"]="/usr/bin/grep -E" +S["GREP"]="/usr/bin/grep" +S["CPP"]="gcc -E" +S["OBJEXT"]="o" +S["EXEEXT"]="" +S["ac_ct_CC"]="gcc" +S["CPPFLAGS"]="" +S["LDFLAGS"]="" +S["CFLAGS"]="-g -O2 -W -Wall" +S["CC"]="gcc" +S["target_alias"]="" +S["host_alias"]="" +S["build_alias"]="" +S["LIBS"]="-lutil " +S["ECHO_T"]="" +S["ECHO_N"]="-n" +S["ECHO_C"]="" +S["DEFS"]="-DHAVE_CONFIG_H" +S["mandir"]="${datarootdir}/man" +S["localedir"]="${datarootdir}/locale" +S["libdir"]="${exec_prefix}/lib" +S["psdir"]="${docdir}" +S["pdfdir"]="${docdir}" +S["dvidir"]="${docdir}" +S["htmldir"]="${docdir}" +S["infodir"]="${datarootdir}/info" +S["docdir"]="${datarootdir}/doc/${PACKAGE_TARNAME}" +S["oldincludedir"]="/usr/include" +S["includedir"]="${prefix}/include" +S["localstatedir"]="${prefix}/var" +S["sharedstatedir"]="${prefix}/com" +S["sysconfdir"]="${prefix}/etc" +S["datadir"]="${datarootdir}" +S["datarootdir"]="${prefix}/share" +S["libexecdir"]="${exec_prefix}/libexec" +S["sbindir"]="${exec_prefix}/sbin" +S["bindir"]="${exec_prefix}/bin" +S["program_transform_name"]="s,x,x," +S["prefix"]="/usr/local" +S["exec_prefix"]="${prefix}" +S["PACKAGE_URL"]="" +S["PACKAGE_BUGREPORT"]="crigler@users.sourceforge.net" +S["PACKAGE_STRING"]="dtach 0.9" +S["PACKAGE_VERSION"]="0.9" +S["PACKAGE_TARNAME"]="dtach" +S["PACKAGE_NAME"]="dtach" +S["PATH_SEPARATOR"]=":" +S["SHELL"]="/bin/bash" +_ACAWK +cat >>"$ac_tmp/subs1.awk" <<_ACAWK && + for (key in S) S_is_set[key] = 1 + FS = "" + +} +{ + line = $ 0 + nfields = split(line, field, "@") + substed = 0 + len = length(field[1]) + for (i = 2; i < nfields; i++) { + key = field[i] + keylen = length(key) + if (S_is_set[key]) { + value = S[key] + line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3) + len += length(value) + length(field[++i]) + substed = 1 + } else + len += 1 + keylen + } + + print line +} + +_ACAWK +if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then + sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g" +else + cat +fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \ + || as_fn_error $? "could not setup config files machinery" "$LINENO" 5 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +D["PACKAGE_NAME"]=" \"dtach\"" +D["PACKAGE_TARNAME"]=" \"dtach\"" +D["PACKAGE_VERSION"]=" \"0.9\"" +D["PACKAGE_STRING"]=" \"dtach 0.9\"" +D["PACKAGE_BUGREPORT"]=" \"crigler@users.sourceforge.net\"" +D["PACKAGE_URL"]=" \"\"" +D["HAVE_LIBUTIL"]=" 1" +D["STDC_HEADERS"]=" 1" +D["HAVE_SYS_TYPES_H"]=" 1" +D["HAVE_SYS_STAT_H"]=" 1" +D["HAVE_STDLIB_H"]=" 1" +D["HAVE_STRING_H"]=" 1" +D["HAVE_MEMORY_H"]=" 1" +D["HAVE_STRINGS_H"]=" 1" +D["HAVE_INTTYPES_H"]=" 1" +D["HAVE_STDINT_H"]=" 1" +D["HAVE_UNISTD_H"]=" 1" +D["HAVE_FCNTL_H"]=" 1" +D["HAVE_SYS_SELECT_H"]=" 1" +D["HAVE_SYS_SOCKET_H"]=" 1" +D["HAVE_SYS_TIME_H"]=" 1" +D["HAVE_SYS_IOCTL_H"]=" 1" +D["HAVE_SYS_RESOURCE_H"]=" 1" +D["HAVE_PTY_H"]=" 1" +D["HAVE_TERMIOS_H"]=" 1" +D["HAVE_STROPTS_H"]=" 1" +D["TIME_WITH_SYS_TIME"]=" 1" +D["RETSIGTYPE"]=" void" +D["HAVE_ATEXIT"]=" 1" +D["HAVE_DUP2"]=" 1" +D["HAVE_MEMSET"]=" 1" +D["HAVE_SELECT"]=" 1" +D["HAVE_SOCKET"]=" 1" +D["HAVE_STRERROR"]=" 1" +D["HAVE_OPENPTY"]=" 1" +D["HAVE_FORKPTY"]=" 1" +D["HAVE_PTSNAME"]=" 1" +D["HAVE_GRANTPT"]=" 1" +D["HAVE_UNLOCKPT"]=" 1" + for (key in D) D_is_set[key] = 1 + FS = "" +} +/^[\t ]*#[\t ]*(define|undef)[\t ]+[_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ][_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]*([\t (]|$)/ { + line = $ 0 + split(line, arg, " ") + if (arg[1] == "#") { + defundef = arg[2] + mac1 = arg[3] + } else { + defundef = substr(arg[1], 2) + mac1 = arg[2] + } + split(mac1, mac2, "(") #) + macro = mac2[1] + prefix = substr(line, 1, index(line, defundef) - 1) + if (D_is_set[macro]) { + # Preserve the white space surrounding the "#". + print prefix "define", macro P[macro] D[macro] + next + } else { + # Replace #undef with comments. This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS " +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? 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Generated by config.status. */ + configure_input='Generated from '` + $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g' + `' by configure.' + if test x"$ac_file" != x-; then + configure_input="$ac_file. $configure_input" + { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5 +$as_echo "$as_me: creating $ac_file" >&6;} + fi + # Neutralize special characters interpreted by sed in replacement strings. + case $configure_input in #( + *\&* | *\|* | *\\* ) + ac_sed_conf_input=`$as_echo "$configure_input" | + sed 's/[\\\\&|]/\\\\&/g'`;; #( + *) ac_sed_conf_input=$configure_input;; + esac + + case $ac_tag in + *:-:* | *:-) cat >"$ac_tmp/stdin" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;; + esac + ;; + esac + + ac_dir=`$as_dirname -- "$ac_file" || +$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$ac_file" : 'X\(//\)[^/]' \| \ + X"$ac_file" : 'X\(//\)$' \| \ + X"$ac_file" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$ac_file" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + as_dir="$ac_dir"; as_fn_mkdir_p + ac_builddir=. + +case "$ac_dir" in +.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;; +*) + ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'` + # A ".." for each directory in $ac_dir_suffix. + ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'` + case $ac_top_builddir_sub in + "") ac_top_builddir_sub=. ac_top_build_prefix= ;; + *) ac_top_build_prefix=$ac_top_builddir_sub/ ;; + esac ;; +esac +ac_abs_top_builddir=$ac_pwd +ac_abs_builddir=$ac_pwd$ac_dir_suffix +# for backward compatibility: +ac_top_builddir=$ac_top_build_prefix + +case $srcdir in + .) # We are building in place. + ac_srcdir=. + ac_top_srcdir=$ac_top_builddir_sub + ac_abs_top_srcdir=$ac_pwd ;; + [\\/]* | ?:[\\/]* ) # Absolute name. + ac_srcdir=$srcdir$ac_dir_suffix; + ac_top_srcdir=$srcdir + ac_abs_top_srcdir=$srcdir ;; + *) # Relative name. + ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix + ac_top_srcdir=$ac_top_build_prefix$srcdir + ac_abs_top_srcdir=$ac_pwd/$srcdir ;; +esac +ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix + + + case $ac_mode in + :F) + # + # CONFIG_FILE + # + +# If the template does not know about datarootdir, expand it. +# FIXME: This hack should be removed a few years after 2.60. +ac_datarootdir_hack=; ac_datarootdir_seen= +ac_sed_dataroot=' +/datarootdir/ { + p + q +} +/@datadir@/p +/@docdir@/p +/@infodir@/p +/@localedir@/p +/@mandir@/p' +case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in +*datarootdir*) ac_datarootdir_seen=yes;; +*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*) + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5 +$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;} + ac_datarootdir_hack=' + s&@datadir@&${datarootdir}&g + s&@docdir@&${datarootdir}/doc/${PACKAGE_TARNAME}&g + s&@infodir@&${datarootdir}/info&g + s&@localedir@&${datarootdir}/locale&g + s&@mandir@&${datarootdir}/man&g + s&\${datarootdir}&${prefix}/share&g' ;; +esac +ac_sed_extra="/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +} + +:t +/@[a-zA-Z_][a-zA-Z_0-9]*@/!b +s|@configure_input@|$ac_sed_conf_input|;t t +s&@top_builddir@&$ac_top_builddir_sub&;t t +s&@top_build_prefix@&$ac_top_build_prefix&;t t +s&@srcdir@&$ac_srcdir&;t t +s&@abs_srcdir@&$ac_abs_srcdir&;t t +s&@top_srcdir@&$ac_top_srcdir&;t t +s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t +s&@builddir@&$ac_builddir&;t t +s&@abs_builddir@&$ac_abs_builddir&;t t +s&@abs_top_builddir@&$ac_abs_top_builddir&;t t +$ac_datarootdir_hack +" +eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \ + >$ac_tmp/out || as_fn_error $? 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"could not create $ac_file" "$LINENO" 5 + ;; + :H) + # + # CONFIG_HEADER + # + if test x"$ac_file" != x-; then + { + $as_echo "/* $configure_input */" \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" + } >"$ac_tmp/config.h" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then + { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5 +$as_echo "$as_me: $ac_file is unchanged" >&6;} + else + rm -f "$ac_file" + mv "$ac_tmp/config.h" "$ac_file" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + fi + else + $as_echo "/* $configure_input */" \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \ + || as_fn_error $? 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Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. Quoting is +# there to prevent editors from complaining about space-tab. +# (If _AS_PATH_WALK were called with IFS unset, it would disable word +# splitting by setting IFS to empty value.) +IFS=" "" $as_nl" + +# Find who we are. Look in the path if we contain no directory separator. +as_myself= +case $0 in #(( + *[\\/]* ) as_myself=$0 ;; + *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break + done +IFS=$as_save_IFS + + ;; +esac +# We did not find ourselves, most probably we were run as `sh COMMAND' +# in which case we are not to be found in the path. +if test "x$as_myself" = x; then + as_myself=$0 +fi +if test ! -f "$as_myself"; then + $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2 + exit 1 +fi + +# Unset variables that we do not need and which cause bugs (e.g. in +# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1" +# suppresses any "Segmentation fault" message there. '((' could +# trigger a bug in pdksh 5.2.14. +for as_var in BASH_ENV ENV MAIL MAILPATH +do eval test x\${$as_var+set} = xset \ + && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || : +done +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +LC_ALL=C +export LC_ALL +LANGUAGE=C +export LANGUAGE + +# CDPATH. +(unset CDPATH) >/dev/null 2>&1 && unset CDPATH + +# Use a proper internal environment variable to ensure we don't fall + # into an infinite loop, continuously re-executing ourselves. + if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then + _as_can_reexec=no; export _as_can_reexec; + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +as_fn_exit 255 + fi + # We don't want this to propagate to other subprocesses. + { _as_can_reexec=; unset _as_can_reexec;} +if test "x$CONFIG_SHELL" = x; then + as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then : + emulate sh + NULLCMD=: + # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which + # is contrary to our usage. Disable this feature. + alias -g '\${1+\"\$@\"}'='\"\$@\"' + setopt NO_GLOB_SUBST +else + case \`(set -o) 2>/dev/null\` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi +" + as_required="as_fn_return () { (exit \$1); } +as_fn_success () { as_fn_return 0; } +as_fn_failure () { as_fn_return 1; } +as_fn_ret_success () { return 0; } +as_fn_ret_failure () { return 1; } + +exitcode=0 +as_fn_success || { exitcode=1; echo as_fn_success failed.; } +as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; } +as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; } +as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; } +if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then : + +else + exitcode=1; echo positional parameters were not saved. +fi +test x\$exitcode = x0 || exit 1 +test -x / || exit 1" + as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO + as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO + eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" && + test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1 +test \$(( 1 + 1 )) = 2 || exit 1" + if (eval "$as_required") 2>/dev/null; then : + as_have_required=yes +else + as_have_required=no +fi + if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then : + +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +as_found=false +for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + as_found=: + case $as_dir in #( + /*) + for as_base in sh bash ksh sh5; do + # Try only shells that exist, to save several forks. + as_shell=$as_dir/$as_base + if { test -f "$as_shell" || test -f "$as_shell.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then : + CONFIG_SHELL=$as_shell as_have_required=yes + if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then : + break 2 +fi +fi + done;; + esac + as_found=false +done +$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } && + { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then : + CONFIG_SHELL=$SHELL as_have_required=yes +fi; } +IFS=$as_save_IFS + + + if test "x$CONFIG_SHELL" != x; then : + export CONFIG_SHELL + # We cannot yet assume a decent shell, so we have to provide a +# neutralization value for shells without unset; and this also +# works around shells that cannot unset nonexistent variables. +# Preserve -v and -x to the replacement shell. +BASH_ENV=/dev/null +ENV=/dev/null +(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV +case $- in # (((( + *v*x* | *x*v* ) as_opts=-vx ;; + *v* ) as_opts=-v ;; + *x* ) as_opts=-x ;; + * ) as_opts= ;; +esac +exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"} +# Admittedly, this is quite paranoid, since all the known shells bail +# out after a failed `exec'. +$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2 +exit 255 +fi + + if test x$as_have_required = xno; then : + $as_echo "$0: This script requires a shell more modern than all" + $as_echo "$0: the shells that I found on your system." + if test x${ZSH_VERSION+set} = xset ; then + $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should" + $as_echo "$0: be upgraded to zsh 4.3.4 or later." + else + $as_echo "$0: Please tell bug-autoconf@gnu.org and +$0: crigler@users.sourceforge.net about your system, +$0: including any error possibly output before this +$0: message. Then install a modern shell, or manually run +$0: the script under such a shell if you do have one." + fi + exit 1 +fi +fi +fi +SHELL=${CONFIG_SHELL-/bin/sh} +export SHELL +# Unset more variables known to interfere with behavior of common tools. +CLICOLOR_FORCE= GREP_OPTIONS= +unset CLICOLOR_FORCE GREP_OPTIONS + +## --------------------- ## +## M4sh Shell Functions. ## +## --------------------- ## +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_mkdir_p +# ------------- +# Create "$as_dir" as a directory, including parents if necessary. +as_fn_mkdir_p () +{ + + case $as_dir in #( + -*) as_dir=./$as_dir;; + esac + test -d "$as_dir" || eval $as_mkdir_p || { + as_dirs= + while :; do + case $as_dir in #( + *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'( + *) as_qdir=$as_dir;; + esac + as_dirs="'$as_qdir' $as_dirs" + as_dir=`$as_dirname -- "$as_dir" || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ + s//\1/ + q + } + /^X\(\/\/\)[^/].*/{ + s//\1/ + q + } + /^X\(\/\/\)$/{ + s//\1/ + q + } + /^X\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + test -d "$as_dir" && break + done + test -z "$as_dirs" || eval "mkdir $as_dirs" + } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir" + + +} # as_fn_mkdir_p + +# as_fn_executable_p FILE +# ----------------------- +# Test if FILE is an executable regular file. +as_fn_executable_p () +{ + test -f "$1" && test -x "$1" +} # as_fn_executable_p +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. Take +# advantage of any shell optimizations that allow amortized linear growth over +# repeated appends, instead of the typical quadratic growth present in naive +# implementations. +if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then : + eval 'as_fn_append () + { + eval $1+=\$2 + }' +else + as_fn_append () + { + eval $1=\$$1\$2 + } +fi # as_fn_append + +# as_fn_arith ARG... +# ------------------ +# Perform arithmetic evaluation on the ARGs, and store the result in the +# global $as_val. Take advantage of shells that can avoid forks. The arguments +# must be portable across $(()) and expr. +if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then : + eval 'as_fn_arith () + { + as_val=$(( $* )) + }' +else + as_fn_arith () + { + as_val=`expr "$@" || test $? -eq 1` + } +fi # as_fn_arith + + +# as_fn_error STATUS ERROR [LINENO LOG_FD] +# ---------------------------------------- +# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are +# provided, also output the error to LOG_FD, referencing LINENO. Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + +if expr a : '\(a\)' >/dev/null 2>&1 && + test "X`expr 00001 : '.*\(...\)'`" = X001; then + as_expr=expr +else + as_expr=false +fi + +if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + +if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then + as_dirname=dirname +else + as_dirname=false +fi + +as_me=`$as_basename -- "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)' \| . 2>/dev/null || +$as_echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ + s//\1/ + q + } + /^X\/\(\/\/\)$/{ + s//\1/ + q + } + /^X\/\(\/\).*/{ + s//\1/ + q + } + s/.*/./; q'` + +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + + + as_lineno_1=$LINENO as_lineno_1a=$LINENO + as_lineno_2=$LINENO as_lineno_2a=$LINENO + eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" && + test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || { + # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-) + sed -n ' + p + /[$]LINENO/= + ' <$as_myself | + sed ' + s/[$]LINENO.*/&-/ + t lineno + b + :lineno + N + :loop + s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/ + t loop + s/-\n.*// + ' >$as_me.lineno && + chmod +x "$as_me.lineno" || + { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } + + # If we had to re-execute with $CONFIG_SHELL, we're ensured to have + # already done that, so ensure we don't try to do so again and fall + # in an infinite loop. This has already happened in practice. + _as_can_reexec=no; export _as_can_reexec + # Don't try to exec as it changes $[0], causing all sort of problems + # (the dirname of $[0] is not the place where we might find the + # original and so on. Autoconf is especially sensitive to this). + . "./$as_me.lineno" + # Exit status is that of the last command. + exit +} + +ECHO_C= ECHO_N= ECHO_T= +case `echo -n x` in #((((( +-n*) + case `echo 'xy\c'` in + *c*) ECHO_T=' ';; # ECHO_T is single tab character. + xy) ECHO_C='\c';; + *) echo `echo ksh88 bug on AIX 6.1` > /dev/null + ECHO_T=' ';; + esac;; +*) + ECHO_N='-n';; +esac + +rm -f conf$$ conf$$.exe conf$$.file +if test -d conf$$.dir; then + rm -f conf$$.dir/conf$$.file +else + rm -f conf$$.dir + mkdir conf$$.dir 2>/dev/null +fi +if (echo >conf$$.file) 2>/dev/null; then + if ln -s conf$$.file conf$$ 2>/dev/null; then + as_ln_s='ln -s' + # ... but there are two gotchas: + # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail. + # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable. + # In both cases, we have to default to `cp -pR'. + ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe || + as_ln_s='cp -pR' + elif ln conf$$.file conf$$ 2>/dev/null; then + as_ln_s=ln + else + as_ln_s='cp -pR' + fi +else + as_ln_s='cp -pR' +fi +rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file +rmdir conf$$.dir 2>/dev/null + +if mkdir -p . 2>/dev/null; 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Invocation command line was + + $ $0 $@ + +_ACEOF +exec 5>>config.log +{ +cat <<_ASUNAME +## --------- ## +## Platform. ## +## --------- ## + +hostname = `(hostname || uname -n) 2>/dev/null | sed 1q` +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown` + +/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown` +/usr/bin/hostinfo = `(/usr/bin/hostinfo) 2>/dev/null || echo unknown` +/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown` +/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown` + +_ASUNAME + +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + $as_echo "PATH: $as_dir" + done +IFS=$as_save_IFS + +} >&5 + +cat >&5 <<_ACEOF + + +## ----------- ## +## Core tests. ## +## ----------- ## + +_ACEOF + + +# Keep a trace of the command line. +# Strip out --no-create and --no-recursion so they do not pile up. +# Strip out --silent because we don't want to record it for future runs. +# Also quote any args containing shell meta-characters. +# Make two passes to allow for proper duplicate-argument suppression. +ac_configure_args= +ac_configure_args0= +ac_configure_args1= +ac_must_keep_next=false +for ac_pass in 1 2 +do + for ac_arg + do + case $ac_arg in + -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil) + continue ;; + *\'*) + ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + case $ac_pass in + 1) as_fn_append ac_configure_args0 " '$ac_arg'" ;; + 2) + as_fn_append ac_configure_args1 " '$ac_arg'" + if test $ac_must_keep_next = true; then + ac_must_keep_next=false # Got value, back to normal. + else + case $ac_arg in + *=* | --config-cache | -C | -disable-* | --disable-* \ + | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ + | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ + | -with-* | --with-* | -without-* | --without-* | --x) + case "$ac_configure_args0 " in + "$ac_configure_args1"*" '$ac_arg' "* ) continue ;; + esac + ;; + -* ) ac_must_keep_next=true ;; + esac + fi + as_fn_append ac_configure_args " '$ac_arg'" + ;; + esac + done +done +{ ac_configure_args0=; unset ac_configure_args0;} +{ ac_configure_args1=; unset ac_configure_args1;} + +# When interrupted or exit'd, cleanup temporary files, and complete +# config.log. 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"$ac_site_file" \ + || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "failed to load site script $ac_site_file +See \`config.log' for more details" "$LINENO" 5; } + fi +done + +if test -r "$cache_file"; then + # Some versions of bash will fail to source /dev/null (special files + # actually), so we avoid doing that. DJGPP emulates it as a regular file. + if test /dev/null != "$cache_file" && test -f "$cache_file"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5 +$as_echo "$as_me: loading cache $cache_file" >&6;} + case $cache_file in + [\\/]* | ?:[\\/]* ) . "$cache_file";; + *) . "./$cache_file";; + esac + fi +else + { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5 +$as_echo "$as_me: creating cache $cache_file" >&6;} + >$cache_file +fi + +# Check that the precious variables saved in the cache have kept the same +# value. +ac_cache_corrupted=false +for ac_var in $ac_precious_vars; do + eval ac_old_set=\$ac_cv_env_${ac_var}_set + eval ac_new_set=\$ac_env_${ac_var}_set + eval ac_old_val=\$ac_cv_env_${ac_var}_value + eval ac_new_val=\$ac_env_${ac_var}_value + case $ac_old_set,$ac_new_set in + set,) + { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5 +$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;} + ac_cache_corrupted=: ;; + ,set) + { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5 +$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;} + ac_cache_corrupted=: ;; + ,);; + *) + if test "x$ac_old_val" != "x$ac_new_val"; then + # differences in whitespace do not lead to failure. + ac_old_val_w=`echo x $ac_old_val` + ac_new_val_w=`echo x $ac_new_val` + if test "$ac_old_val_w" != "$ac_new_val_w"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5 +$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;} + ac_cache_corrupted=: + else + { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5 +$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;} + eval $ac_var=\$ac_old_val + fi + { $as_echo "$as_me:${as_lineno-$LINENO}: former value: \`$ac_old_val'" >&5 +$as_echo "$as_me: former value: \`$ac_old_val'" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: current value: \`$ac_new_val'" >&5 +$as_echo "$as_me: current value: \`$ac_new_val'" >&2;} + fi;; + esac + # Pass precious variables to config.status. + if test "$ac_new_set" = set; then + case $ac_new_val in + *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;; + *) ac_arg=$ac_var=$ac_new_val ;; + esac + case " $ac_configure_args " in + *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy. + *) as_fn_append ac_configure_args " '$ac_arg'" ;; + esac + fi +done +if $ac_cache_corrupted; then + { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} + { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5 +$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;} + as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5 +fi +## -------------------- ## +## Main body of script. ## +## -------------------- ## + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + + +ac_config_headers="$ac_config_headers config.h" + + +# Checks for programs. +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + fi +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl.exe + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5 +$as_echo "$CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl.exe +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5 +$as_echo_n "checking for $ac_word... " >&6; } +if ${ac_cv_prog_ac_ct_CC+:} false; then : + $as_echo_n "(cached) " >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done + done +IFS=$as_save_IFS + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5 +$as_echo "$ac_ct_CC" >&6; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +fi + + + test -n "$ac_ct_CC" && break +done + + if test "x$ac_ct_CC" = x; then + CC="" + else + case $cross_compiling:$ac_tool_warned in +yes:) +{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5 +$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;} +ac_tool_warned=yes ;; +esac + CC=$ac_ct_CC + fi +fi + +fi + + +test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "no acceptable C compiler found in \$PATH +See \`config.log' for more details" "$LINENO" 5; } + +# Provide some information about the compiler. +$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5 +set X $ac_compile +ac_compiler=$2 +for ac_option in --version -v -V -qversion; do + { { ac_try="$ac_compiler $ac_option >&5" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_compiler $ac_option >&5") 2>conftest.err + ac_status=$? + if test -s conftest.err; then + sed '10a\ +... rest of stderr output deleted ... + 10q' conftest.err >conftest.er1 + cat conftest.er1 >&5 + fi + rm -f conftest.er1 conftest.err + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } +done + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5 +$as_echo_n "checking whether the C compiler works... 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We should not override ac_cv_exeext if it was cached, +# so that the user can short-circuit this test for compilers unknown to +# Autoconf. +for ac_file in $ac_files '' +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no; + then :; else + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + fi + # We set ac_cv_exeext here because the later test for it is not + # safe: cross compilers may not add the suffix if given an `-o' + # argument, so we may need to know it at that point already. + # Even if this section looks crufty: it has the advantage of + # actually working. + break;; + * ) + break;; + esac +done +test "$ac_cv_exeext" = no && ac_cv_exeext= + +else + ac_file='' +fi +if test -z "$ac_file"; then : + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } +$as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error 77 "C compiler cannot create executables +See \`config.log' for more details" "$LINENO" 5; } +else + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5 +$as_echo_n "checking for C compiler default output file name... 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For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + break;; + * ) break;; + esac +done +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? 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It's necessary to write '\x00'==0 to get something + that's true only with -std. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters + inside strings and character constants. */ +#define FOO(x) 'x' +int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \ + -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_prog_cc_c89=$ac_arg +fi +rm -f core conftest.err conftest.$ac_objext + test "x$ac_cv_prog_cc_c89" != "xno" && break +done +rm -f conftest.$ac_ext +CC=$ac_save_CC + +fi +# AC_CACHE_VAL +case "x$ac_cv_prog_cc_c89" in + x) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5 +$as_echo "none needed" >&6; } ;; + xno) + { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5 +$as_echo "unsupported" >&6; } ;; + *) + CC="$CC $ac_cv_prog_cc_c89" + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5 +$as_echo "$ac_cv_prog_cc_c89" >&6; } ;; +esac +if test "x$ac_cv_prog_cc_c89" != xno; then : + +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5 +$as_echo_n "checking how to run the C preprocessor... " >&6; } +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if ${ac_cv_prog_CPP+:} false; then : + $as_echo_n "(cached) " >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5 +$as_echo "$CPP" >&6; } +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + +else + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.i conftest.$ac_ext + + # OK, works on sane cases. Now check whether nonexistent headers + # can be detected and how. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +_ACEOF +if ac_fn_c_try_cpp "$LINENO"; then : + # Broken: success on invalid input. +continue +else + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.i conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.i conftest.err conftest.$ac_ext +if $ac_preproc_ok; then : + +else + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details" "$LINENO" 5; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5 +$as_echo_n "checking for grep that handles long lines and -e... 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" >&6; } +if ${ac_cv_path_EGREP+:} false; then : + $as_echo_n "(cached) " >&6 +else + if echo a | $GREP -E '(a|b)' >/dev/null 2>&1 + then ac_cv_path_EGREP="$GREP -E" + else + if test -z "$EGREP"; then + ac_path_EGREP_found=false + # Loop through the user's path and test for each of PROGNAME-LIST + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_prog in egrep; do + for ac_exec_ext in '' $ac_executable_extensions; do + ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext" + as_fn_executable_p "$ac_path_EGREP" || continue +# Check for GNU ac_path_EGREP and select it if it is found. + # Check for GNU $ac_path_EGREP +case `"$ac_path_EGREP" --version 2>&1` in +*GNU*) + ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;; +*) + ac_count=0 + $as_echo_n 0123456789 >"conftest.in" + while : + do + cat "conftest.in" "conftest.in" >"conftest.tmp" + mv "conftest.tmp" "conftest.in" + cp "conftest.in" "conftest.nl" + $as_echo 'EGREP' >> "conftest.nl" + "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break + diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break + as_fn_arith $ac_count + 1 && ac_count=$as_val + if test $ac_count -gt ${ac_path_EGREP_max-0}; then + # Best one so far, save it but keep looking for a better one + ac_cv_path_EGREP="$ac_path_EGREP" + ac_path_EGREP_max=$ac_count + fi + # 10*(2^10) chars as input seems more than enough + test $ac_count -gt 10 && break + done + rm -f conftest.in conftest.tmp conftest.nl conftest.out;; +esac + + $ac_path_EGREP_found && break 3 + done + done + done +IFS=$as_save_IFS + if test -z "$ac_cv_path_EGREP"; then + as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5 + fi +else + ac_cv_path_EGREP=$EGREP +fi + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5 +$as_echo "$ac_cv_path_EGREP" >&6; } + EGREP="$ac_cv_path_EGREP" + + +if test $ac_cv_c_compiler_gnu = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC needs -traditional" >&5 +$as_echo_n "checking whether $CC needs -traditional... " >&6; } +if ${ac_cv_prog_gcc_traditional+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_pattern="Autoconf.*'x'" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +Autoconf TIOCGETP +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "$ac_pattern" >/dev/null 2>&1; then : + ac_cv_prog_gcc_traditional=yes +else + ac_cv_prog_gcc_traditional=no +fi +rm -f conftest* + + + if test $ac_cv_prog_gcc_traditional = no; then + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +Autoconf TCGETA +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "$ac_pattern" >/dev/null 2>&1; then : + ac_cv_prog_gcc_traditional=yes +fi +rm -f conftest* + + fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_gcc_traditional" >&5 +$as_echo "$ac_cv_prog_gcc_traditional" >&6; } + if test $ac_cv_prog_gcc_traditional = yes; then + CC="$CC -traditional" + fi +fi + + +if test "$GCC" = yes; then + CFLAGS="$CFLAGS -W -Wall"; +fi + +# Checks for libraries. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for openpty in -lutil" >&5 +$as_echo_n "checking for openpty in -lutil... " >&6; } +if ${ac_cv_lib_util_openpty+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lutil $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char openpty (); +int +main () +{ +return openpty (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_util_openpty=yes +else + ac_cv_lib_util_openpty=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_util_openpty" >&5 +$as_echo "$ac_cv_lib_util_openpty" >&6; } +if test "x$ac_cv_lib_util_openpty" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LIBUTIL 1 +_ACEOF + + LIBS="-lutil $LIBS" + +fi + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for socket in -lsocket" >&5 +$as_echo_n "checking for socket in -lsocket... " >&6; } +if ${ac_cv_lib_socket_socket+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lsocket $LIBS" +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char socket (); +int +main () +{ +return socket (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + ac_cv_lib_socket_socket=yes +else + ac_cv_lib_socket_socket=no +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_socket" >&5 +$as_echo "$ac_cv_lib_socket_socket" >&6; } +if test "x$ac_cv_lib_socket_socket" = xyes; then : + cat >>confdefs.h <<_ACEOF +#define HAVE_LIBSOCKET 1 +_ACEOF + + LIBS="-lsocket $LIBS" + +fi + + +# Checks for header files. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include +#include + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +for ac_header in fcntl.h sys/select.h sys/socket.h sys/time.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + +for ac_header in sys/ioctl.h sys/resource.h pty.h termios.h util.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + +for ac_header in libutil.h stropts.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and sys/time.h may both be included" >&5 +$as_echo_n "checking whether time.h and sys/time.h may both be included... " >&6; } +if ${ac_cv_header_time+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include +#include + +int +main () +{ +if ((struct tm *) 0) +return 0; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_time=yes +else + ac_cv_header_time=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_time" >&5 +$as_echo "$ac_cv_header_time" >&6; } +if test $ac_cv_header_time = yes; then + +$as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h + +fi + + +# Checks for typedefs, structures, and compiler characteristics. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5 +$as_echo_n "checking for an ANSI C-conforming const... " >&6; } +if ${ac_cv_c_const+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + +#ifndef __cplusplus + /* Ultrix mips cc rejects this sort of thing. */ + typedef int charset[2]; + const charset cs = { 0, 0 }; + /* SunOS 4.1.1 cc rejects this. */ + char const *const *pcpcc; + char **ppc; + /* NEC SVR4.0.2 mips cc rejects this. */ + struct point {int x, y;}; + static struct point const zero = {0,0}; + /* AIX XL C 1.02.0.0 rejects this. + It does not let you subtract one const X* pointer from another in + an arm of an if-expression whose if-part is not a constant + expression */ + const char *g = "string"; + pcpcc = &g + (g ? g-g : 0); + /* HPUX 7.0 cc rejects these. */ + ++pcpcc; + ppc = (char**) pcpcc; + pcpcc = (char const *const *) ppc; + { /* SCO 3.2v4 cc rejects this sort of thing. */ + char tx; + char *t = &tx; + char const *s = 0 ? (char *) 0 : (char const *) 0; + + *t++ = 0; + if (s) return 0; + } + { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */ + int x[] = {25, 17}; + const int *foo = &x[0]; + ++foo; + } + { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */ + typedef const int *iptr; + iptr p = 0; + ++p; + } + { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying + "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */ + struct s { int j; const int *ap[3]; } bx; + struct s *b = &bx; b->j = 5; + } + { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */ + const int foo = 10; + if (!foo) return 0; + } + return !cs[0] && !zero.x; +#endif + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_const=yes +else + ac_cv_c_const=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5 +$as_echo "$ac_cv_c_const" >&6; } +if test $ac_cv_c_const = no; then + +$as_echo "#define const /**/" >>confdefs.h + +fi + +ac_fn_c_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default" +if test "x$ac_cv_type_pid_t" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define pid_t int +_ACEOF + +fi + +ac_fn_c_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_default" +if test "x$ac_cv_type_ssize_t" = xyes; then : + +else + +cat >>confdefs.h <<_ACEOF +#define ssize_t int +_ACEOF + +fi + + +# Checks for library functions. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of signal handlers" >&5 +$as_echo_n "checking return type of signal handlers... " >&6; } +if ${ac_cv_type_signal+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include +#include + +int +main () +{ +return *(signal (0, 0)) (0) == 1; + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_type_signal=int +else + ac_cv_type_signal=void +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_signal" >&5 +$as_echo "$ac_cv_type_signal" >&6; } + +cat >>confdefs.h <<_ACEOF +#define RETSIGTYPE $ac_cv_type_signal +_ACEOF + + +for ac_func in atexit dup2 memset +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + +for ac_func in select socket strerror +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + +for ac_func in openpty forkpty ptsname grantpt unlockpt +do : + as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` +ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" +if eval test \"x\$"$as_ac_var"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 +_ACEOF + +fi +done + + +ac_config_files="$ac_config_files Makefile" + +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, we kill variables containing newlines. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +( + for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do + eval ac_val=\$$ac_var + case $ac_val in #( + *${as_nl}*) + case $ac_var in #( + *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5 +$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;; + esac + case $ac_var in #( + _ | IFS | as_nl) ;; #( + BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #( + *) { eval $ac_var=; unset $ac_var;} ;; + esac ;; + esac + done + + (set) 2>&1 | + case $as_nl`(ac_space=' '; set) 2>&1` in #( + *${as_nl}ac_space=\ *) + # `set' does not quote correctly, so add quotes: double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \. + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; #( + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p" + ;; + esac | + sort +) | + sed ' + /^ac_cv_env_/b end + t clear + :clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + :end' >>confcache +if diff "$cache_file" confcache >/dev/null 2>&1; then :; else + if test -w "$cache_file"; then + if test "x$cache_file" != "x/dev/null"; then + { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5 +$as_echo "$as_me: updating cache $cache_file" >&6;} + if test ! -f "$cache_file" || test -h "$cache_file"; then + cat confcache >"$cache_file" + else + case $cache_file in #( + */* | ?:*) + mv -f confcache "$cache_file"$$ && + mv -f "$cache_file"$$ "$cache_file" ;; #( + *) + mv -f confcache "$cache_file" ;; + esac + fi + fi + else + { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5 +$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;} + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +DEFS=-DHAVE_CONFIG_H + +ac_libobjs= +ac_ltlibobjs= +U= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_script='s/\$U\././;s/\.o$//;s/\.obj$//' + ac_i=`$as_echo "$ac_i" | sed "$ac_script"` + # 2. Prepend LIBOBJDIR. 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Disable this feature. + alias -g '${1+"$@"}'='"$@"' + setopt NO_GLOB_SUBST +else + case `(set -o) 2>/dev/null` in #( + *posix*) : + set -o posix ;; #( + *) : + ;; +esac +fi + + +as_nl=' +' +export as_nl +# Printing a long string crashes Solaris 7 /usr/bin/printf. +as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\' +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo +as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo +# Prefer a ksh shell builtin over an external printf program on Solaris, +# but without wasting forks for bash or zsh. +if test -z "$BASH_VERSION$ZSH_VERSION" \ + && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='print -r --' + as_echo_n='print -rn --' +elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then + as_echo='printf %s\n' + as_echo_n='printf %s' +else + if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then + as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"' + as_echo_n='/usr/ucb/echo -n' + else + as_echo_body='eval expr "X$1" : "X\\(.*\\)"' + as_echo_n_body='eval + arg=$1; + case $arg in #( + *"$as_nl"*) + expr "X$arg" : "X\\(.*\\)$as_nl"; + arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;; + esac; + expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl" + ' + export as_echo_n_body + as_echo_n='sh -c $as_echo_n_body as_echo' + fi + export as_echo_body + as_echo='sh -c $as_echo_body as_echo' +fi + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + PATH_SEPARATOR=: + (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && { + (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 || + PATH_SEPARATOR=';' + } +fi + + +# IFS +# We need space, tab and new line, in precisely that order. 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Then exit the +# script with STATUS, using 1 if that was 0. +as_fn_error () +{ + as_status=$1; test $as_status -eq 0 && as_status=1 + if test "$4"; then + as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4 + fi + $as_echo "$as_me: error: $2" >&2 + as_fn_exit $as_status +} # as_fn_error + + +# as_fn_set_status STATUS +# ----------------------- +# Set $? to STATUS, without forking. +as_fn_set_status () +{ + return $1 +} # as_fn_set_status + +# as_fn_exit STATUS +# ----------------- +# Exit the shell with STATUS, even in a "trap 0" or "set -e" context. +as_fn_exit () +{ + set +e + as_fn_set_status $1 + exit $1 +} # as_fn_exit + +# as_fn_unset VAR +# --------------- +# Portably unset VAR. +as_fn_unset () +{ + { eval $1=; unset $1;} +} +as_unset=as_fn_unset +# as_fn_append VAR VALUE +# ---------------------- +# Append the text in VALUE to the end of the definition contained in VAR. 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Invocation command line was + + CONFIG_FILES = $CONFIG_FILES + CONFIG_HEADERS = $CONFIG_HEADERS + CONFIG_LINKS = $CONFIG_LINKS + CONFIG_COMMANDS = $CONFIG_COMMANDS + $ $0 $@ + +on `(hostname || uname -n) 2>/dev/null | sed 1q` +" + +_ACEOF + +case $ac_config_files in *" +"*) set x $ac_config_files; shift; ac_config_files=$*;; +esac + +case $ac_config_headers in *" +"*) set x $ac_config_headers; shift; ac_config_headers=$*;; +esac + + +cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 +# Files that config.status was made for. +config_files="$ac_config_files" +config_headers="$ac_config_headers" + +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +ac_cs_usage="\ +\`$as_me' instantiates files and other configuration actions +from templates according to the current configuration. Unless the files +and actions are specified as TAGs, all are instantiated by default. + +Usage: $0 [OPTION]... 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"$LINENO" 5 +ac_tmp=$tmp + +# Set up the scripts for CONFIG_FILES section. +# No need to generate them if there are no CONFIG_FILES. +# This happens for instance with `./config.status config.h'. +if test -n "$CONFIG_FILES"; then + + +ac_cr=`echo X | tr X '\015'` +# On cygwin, bash can eat \r inside `` if the user requested igncr. +# But we know of no other shell where ac_cr would be empty at this +# point, so we can use a bashism as a fallback. +if test "x$ac_cr" = x; then + eval ac_cr=\$\'\\r\' +fi +ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' /dev/null` +if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then + ac_cs_awk_cr='\\r' +else + ac_cs_awk_cr=$ac_cr +fi + +echo 'BEGIN {' >"$ac_tmp/subs1.awk" && +_ACEOF + + +{ + echo "cat >conf$$subs.awk <<_ACEOF" && + echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' && + echo "_ACEOF" +} >conf$$subs.sh || + as_fn_error $? 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"could not setup config files machinery" "$LINENO" 5 +_ACEOF + +# VPATH may cause trouble with some makes, so we remove sole $(srcdir), +# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{ +h +s/// +s/^/:/ +s/[ ]*$/:/ +s/:\$(srcdir):/:/g +s/:\${srcdir}:/:/g +s/:@srcdir@:/:/g +s/^:*// +s/:*$// +x +s/\(=[ ]*\).*/\1/ +G +s/\n// +s/^[^=]*=[ ]*$// +}' +fi + +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 +fi # test -n "$CONFIG_FILES" + +# Set up the scripts for CONFIG_HEADERS section. +# No need to generate them if there are no CONFIG_HEADERS. +# This happens for instance with `./config.status Makefile'. +if test -n "$CONFIG_HEADERS"; then +cat >"$ac_tmp/defines.awk" <<\_ACAWK || +BEGIN { +_ACEOF + +# Transform confdefs.h into an awk script `defines.awk', embedded as +# here-document in config.status, that substitutes the proper values into +# config.h.in to produce config.h. + +# Create a delimiter string that does not exist in confdefs.h, to ease +# handling of long lines. +ac_delim='%!_!# ' +for ac_last_try in false false :; do + ac_tt=`sed -n "/$ac_delim/p" confdefs.h` + if test -z "$ac_tt"; then + break + elif $ac_last_try; then + as_fn_error $? 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This is necessary, for example, + # in the case of _POSIX_SOURCE, which is predefined and required + # on some systems where configure will not decide to define it. + if (defundef == "undef") { + print "/*", prefix defundef, macro, "*/" + next + } + } +} +{ print } +_ACAWK +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 + as_fn_error $? "could not setup config headers machinery" "$LINENO" 5 +fi # test -n "$CONFIG_HEADERS" + + +eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS " +shift +for ac_tag +do + case $ac_tag in + :[FHLC]) ac_mode=$ac_tag; continue;; + esac + case $ac_mode$ac_tag in + :[FHL]*:*);; + :L* | :C*:*) as_fn_error $? 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"could not create $ac_file" "$LINENO" 5 + ;; + :H) + # + # CONFIG_HEADER + # + if test x"$ac_file" != x-; then + { + $as_echo "/* $configure_input */" \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" + } >"$ac_tmp/config.h" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then + { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5 +$as_echo "$as_me: $ac_file is unchanged" >&6;} + else + rm -f "$ac_file" + mv "$ac_tmp/config.h" "$ac_file" \ + || as_fn_error $? "could not create $ac_file" "$LINENO" 5 + fi + else + $as_echo "/* $configure_input */" \ + && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \ + || as_fn_error $? "could not create -" "$LINENO" 5 + fi + ;; + + + esac + +done # for ac_tag + + +as_fn_exit 0 +_ACEOF +ac_clean_files=$ac_clean_files_save + +test $ac_write_fail = 0 || + as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5 + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || as_fn_exit 1 +fi +if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then + { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 +$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} +fi + diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..bef44f5 --- /dev/null +++ b/configure.ac @@ -0,0 +1,37 @@ +# Process this file with autoconf to produce a configure script. +AC_INIT(dtach, 0.9, crigler@users.sourceforge.net) +AC_PREREQ(2.60) +AC_CONFIG_SRCDIR(main.c) +AC_CONFIG_HEADER(config.h) + +# Checks for programs. +AC_PROG_CC +AC_PROG_GCC_TRADITIONAL + +if test "$GCC" = yes; then + CFLAGS="$CFLAGS -W -Wall"; +fi + +# Checks for libraries. +AC_CHECK_LIB(util, openpty) +AC_CHECK_LIB(socket, socket) + +# Checks for header files. +AC_CHECK_HEADERS(fcntl.h sys/select.h sys/socket.h sys/time.h) +AC_CHECK_HEADERS(sys/ioctl.h sys/resource.h pty.h termios.h util.h) +AC_CHECK_HEADERS(libutil.h stropts.h) +AC_HEADER_TIME + +# Checks for typedefs, structures, and compiler characteristics. +AC_C_CONST +AC_TYPE_PID_T +AC_TYPE_SSIZE_T + +# Checks for library functions. +AC_TYPE_SIGNAL +AC_CHECK_FUNCS(atexit dup2 memset) +AC_CHECK_FUNCS(select socket strerror) +AC_CHECK_FUNCS(openpty forkpty ptsname grantpt unlockpt) + +AC_CONFIG_FILES(Makefile) +AC_OUTPUT diff --git a/dtach.1 b/dtach.1 new file mode 100644 index 0000000..b526073 --- /dev/null +++ b/dtach.1 @@ -0,0 +1,216 @@ +.TH dtach 1 "May 2016" "dtach 0.9" +.SH NAME +dtach \- simple program that emulates the detach feature of screen. +.SH SYNOPSIS +.B dtach \-a +.I +.br +.B dtach \-A +.I +.br +.B dtach \-c +.I +.br +.B dtach \-n +.I +.br +.B dtach \-N +.I +.br +.B dtach \-p +.I + +.SH DESCRIPTION +.B dtach +is a program that emulates the detach feature of screen. It is designed +to be transparent and un-intrusive; it avoids interpreting the input and output +between attached terminals and the program under its control. Consequently, it +works best with full-screen applications such as emacs. + +.B dtach +is intended for users who want the detach feature of screen without the other +overhead of screen. It is tiny, does not use many libraries, and stays +out of the way as much as possible. + +.SS SESSIONS +A session in +.B dtach +is a single instance in which a program is running under the control of +.BR dtach . +The program is disassociated from the original terminal, and is thus protected +from your original terminal being disconnected for some reason. +.PP + +Other instances of +.B dtach +can attach themselves to a particular session. Input and output is copied +between the program running in the +.B dtach +session, and the attached terminals. +.PP + +.B dtach +avoids interpreting the communication stream between the program and the +attached terminals; it instead relies on the ability of the attached terminals +to manage the screen. +.PP + +Sessions are represented by Unix-domain sockets in the filesystem. No other +permission checking other than the filesystem access checks is performed. +.B dtach +creates a master process that monitors the session socket, the program, and any +attached terminals. + +.PP +.SS MODES +.B dtach +has several modes of operation. It can create a new session in which a +program is executed, or it can attach to an existing session. The first +argument specifies which mode +.B dtach +should operate in. +.TP +.B \-a +Attach to an existing session. +.B dtach +attaches itself to the session specified by +.IR . +After the attach is completed, the window size of the current terminal is sent +to the master process, and a redraw is also requested. +.TP +.B \-A +Attach to an existing session, or create a new one. +.B dtach +first tries to attach to the session specified by +.I +if possible. If the attempt to open the socket fails, +.B dtach +tries to create a new session before attaching to it. +.TP +.B \-c +Creates a new session. A new session is created in which the specified program +is executed. +.B dtach +then tries to attach itself to the newly created session. +.TP +.B \-n +Creates a new session, without attaching to it. A new session is created in +which the specified program is executed. +.B dtach +does not try to attach to the newly created session, however, and exits +instead. +.TP +.B \-N +Creates a new session, without attaching to it or daemonizing. A new session is +created in which the specified program is executed. +.B dtach +does not try to attach to the newly created session, however, and will stay +in the foreground until the program exits. +.TP +.B \-p +Copies the contents of standard input to a session. +.B dtach +connects to the session specified by +.IR , +copies the contents of standard input to the session, and then exits. dtach +will not scan the input for a detach character. + +.PP +.SS OPTIONS +.B dtach +has a few options that allow you to modify its behavior. Each attaching +process can have separate settings for these options, which allows for +some flexibility. + +.TP +.BI "\-e " "" +Sets the detach character to +.IR . +When the detach character is pressed, +.B dtach +detaches itself from the current session and exits. The process running in +the session is unaffected by the detach. By default, the detach character is +set to ^\e (Ctrl-\e). + +.TP +.B \-E +Disables the detach character. +.B dtach +does not try to scan input from the terminal for a detach character. The only +way to detach from the session is then by sending the attaching process an +appropriate signal. + +.TP +.BI "\-r " "" +Sets the redraw method to +.IR . +The valid methods are +.IR none , +.IR ctrl_l , +or +.IR winch . + +.I none +disables redrawing completely, +.I ctrl_l +sends a Ctrl L character to the program if the terminal is in +character-at-a-time and no-echo mode, and +.I winch +forces a WINCH signal to be sent to the program. + +When creating a new session, the specified method is used as the default +redraw method for the session. If not specified, the +.I ctrl_l +method is used. + +.TP +.B \-z +Disables processing of the suspend key. +Normally, +.B dtach +will suspend itself when the suspend key is pressed. With this option, the +suspend character is sent to the session instead of being handled by +.BR dtach . + +.PP +.SH EXAMPLES + +The following example creates a new session that has the detach character +and suspend processing disabled. A socket is created in the /tmp directory +for the session. + +.nf + $ dtach \-c /tmp/foozle \-Ez bash +.fi + +The following example attaches to the /tmp/foozle session if it exists, and if +not, creates a new session using /tmp/foozle as the socket for the session. +Processing of the suspend character is also disabled for the attach instance. + +.nf + $ dtach \-A /tmp/foozle \-z bash +.fi + +The following example attaches to the /tmp/foozle session, using the +.I winch +redraw method to redraw the screen. + +.nf + $ dtach \-a /tmp/foozle \-r winch +.fi + +The following example creates a new session and sets the default redraw method +for the session to the +.I winch +redraw method. + +.nf + $ dtach \-c /tmp/foozle \-r winch bash +.fi + +.PP +.SH AUTHOR +Ned T. Crigler . + +.SH "SEE ALSO" +.BR screen "(1)" diff --git a/dtach.h b/dtach.h new file mode 100644 index 0000000..c4d39cb --- /dev/null +++ b/dtach.h @@ -0,0 +1,136 @@ +/* + dtach - A simple program that emulates the detach feature of screen. + Copyright (C) 2001, 2004-2016 Ned T. Crigler + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +#ifndef dtach_h +#define dtach_h + +#include + +#include +#include +#include +#include +#include +#include + +#if TIME_WITH_SYS_TIME +#include +#include +#else +#if HAVE_SYS_TIME_H +#include +#else +#include +#endif +#endif + +#ifdef HAVE_PTY_H +#include +#endif + +#ifdef HAVE_UTIL_H +#include +#endif + +#ifdef HAVE_LIBUTIL_H +#include +#endif + +#ifdef HAVE_STROPTS_H +#include +#endif + +#ifdef HAVE_UNISTD_H +#include +#endif + +#ifdef HAVE_SYS_IOCTL_H +#include +#endif + +#ifdef HAVE_SYS_RESOURCE_H +#include +#endif + +#include +#include +#include +#include +#include + +#ifndef S_ISREG +#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG) +#endif + +#ifndef S_ISSOCK +#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK) +#endif + +extern char *progname, *sockname; +extern int detach_char, no_suspend, redraw_method; +extern struct termios orig_term; +extern int dont_have_tty; + +enum +{ + MSG_PUSH = 0, + MSG_ATTACH = 1, + MSG_DETACH = 2, + MSG_WINCH = 3, + MSG_REDRAW = 4, +}; + +enum +{ + REDRAW_UNSPEC = 0, + REDRAW_NONE = 1, + REDRAW_CTRL_L = 2, + REDRAW_WINCH = 3, +}; + +/* The client to master protocol. */ +struct packet +{ + unsigned char type; + unsigned char len; + union + { + unsigned char buf[sizeof(struct winsize)]; + struct winsize ws; + } u; +}; + +/* +** The master sends a simple stream of text to the attaching clients, without +** any protocol. This might change back to the packet based protocol in the +** future. In the meantime, however, we minimize the amount of data sent back +** and forth between the client and the master. BUFSIZE is the size of the +** buffer used for the text stream. +*/ +#define BUFSIZE 4096 + +/* This hopefully moves to the bottom of the screen */ +#define EOS "\033[999H" + +int attach_main(int noerror); +int master_main(char **argv, int waitattach, int dontfork); +int push_main(void); + +#ifdef sun +#define BROKEN_MASTER +#endif +#endif diff --git a/dtach.spec b/dtach.spec new file mode 100644 index 0000000..1aa8fe1 --- /dev/null +++ b/dtach.spec @@ -0,0 +1,108 @@ +Summary: A simple program that emulates the detach feature of screen. +Name: dtach +Version: 0.9 +Release: 1 +License: GPL +URL: http://dtach.sourceforge.net +Group: Applications/System +Source: http://prdownloads.sourceforge.net/dtach/dtach-%{version}.tar.gz +Buildroot: %{_tmppath}/%{name}-%{version}-root + +%description + +dtach is a program that emulates the detach feature of screen, with +less overhead. It is designed to be transparent and un-intrusive; it +avoids interpreting the input and output between attached terminals +and the program under its control. Consequently, it works best with +full-screen applications such as emacs. + +%prep +%setup + +%build +%configure +make + +%install +rm -rf $RPM_BUILD_ROOT/* +mkdir -p $RPM_BUILD_ROOT/%{_bindir} +mkdir -p $RPM_BUILD_ROOT/usr/share/doc/dtach-%{version} +mkdir -p $RPM_BUILD_ROOT/%{_mandir}/man1 +install -m 755 dtach $RPM_BUILD_ROOT/%{_bindir}/dtach +install -m 644 dtach.1 $RPM_BUILD_ROOT/%{_mandir}/man1/dtach.1 + +%clean +make clean +rm -rf $RPM_BUILD_ROOT +rm -rf $RPM_BUILD_DIR/%{name}-%{version} + +%files +%defattr(-,root,root,-) +%doc COPYING README +%{_bindir}/dtach +%{_mandir}/*/* + +%changelog +* Sun May 8 2016 Ned T. Crigler 0.9 +- New release + +* Wed Jan 30 2008 Ned T. Crigler 0.8 +- New release + +* Sat Jul 3 2004 Ned T. Crigler 0.7 +- New release + +* Fri Nov 30 2001 Ned T. Crigler 0.5 +- Fix fd leakage. +- Prevent atexit from being called twice on dtach -A. + +* Fri Nov 30 2001 Trond Eivind Glomsrød 0.4-1 +- s/Copyright/License/ +- Minor description change +- fix use of %%doc +- Add full location of source tarball + +* Sat Nov 03 2001 Ned T. Crigler 0.4 +- Portability updates thanks to sourceforge's compile farm. dtach should now + work on: FreeBSD, Debian/alpha, Debian/PPC, Debian/sparc, Debian/PPC, and + Solaris. + +* Thu Sep 27 2001 Ned T. Crigler +- Modified spec file URL: to point to http://dtach.sourceforge.net + +* Wed Sep 26 2001 Ned T. Crigler 0.3 +- Use getrlimit and dynamically allocate the data structures, if possible. +- Added some more autoconf checks. +- Initial sourceforge release. + +* Thu Sep 20 2001 Ned T. Crigler +- Changed the master to send a stream of text to attaching clients instead + of sending a huge packet all the time. +- Decreased the client <-> master packet size. +- Changed the attach code so that it tells the master when a suspend occurs. + +* Tue Sep 18 2001 Ned T. Crigler +- Fixed a typo in dtach.1 + +* Tue Sep 18 2001 Ned T. Crigler 0.2 +- Removed silly thinko regarding terminal settings in attach, we + always set the terminal to raw mode now. +- Moved redraw code into the master, which tries to be smarter when + using ^L. +- Moved the code that obtains the current terminal settings into main, + preventing a race condition between the master and attach processes. +- Rewrote argument parsing code. +- Changed name to dtach. +- Added a man page. + +* Mon Sep 17 2001 Ned T. Crigler +- Changed fchmod to chmod in create_socket. + +* Mon Sep 17 2001 Isaiah Weiner +- Modified spec file to correct detach binary permissions +- Modified spec file to correct detach documentation path +- Modified spec file URL: to point to http://people.redhat.com/iweiner/detach +- Modified spec file %clean to remove buildroot and builddir. + +* Mon Sep 17 2001 Ned T. Crigler 0.1 +- Initial rpm release. diff --git a/main.c b/main.c new file mode 100644 index 0000000..9fe78b8 --- /dev/null +++ b/main.c @@ -0,0 +1,283 @@ +/* + dtach - A simple program that emulates the detach feature of screen. + Copyright (C) 2004-2016 Ned T. Crigler + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +#include "dtach.h" + +/* +** dtach is a quick hack, since I wanted the detach feature of screen without +** all the other crud. It'll work best with full-screen applications, as it +** does not keep track of the screen or anything like that. +*/ + +/* Make sure the binary has a copyright. */ +const char copyright[] = "dtach - version " PACKAGE_VERSION "(C)Copyright 2004-2016 Ned T. Crigler"; + +/* argv[0] from the program */ +char *progname; +/* The name of the passed in socket. */ +char *sockname; +/* The character used for detaching. Defaults to '^\' */ +int detach_char = '\\' - 64; +/* 1 if we should not interpret the suspend character. */ +int no_suspend; +/* The default redraw method. Initially set to unspecified. */ +int redraw_method = REDRAW_UNSPEC; + +/* +** The original terminal settings. Shared between the master and attach +** processes. The master uses it to initialize the pty, and the attacher uses +** it to restore the original settings. +*/ +struct termios orig_term; +int dont_have_tty; + +static void +usage() +{ + printf( + "dtach - version %s, compiled on %s at %s.\n" + "Usage: dtach -a \n" + " dtach -A \n" + " dtach -c \n" + " dtach -n \n" + " dtach -N \n" + " dtach -p \n" + "Modes:\n" + " -a\t\tAttach to the specified socket.\n" + " -A\t\tAttach to the specified socket, or create it if it\n" + "\t\t does not exist, running the specified command.\n" + " -c\t\tCreate a new socket and run the specified command.\n" + " -n\t\tCreate a new socket and run the specified command " + "detached.\n" + " -N\t\tCreate a new socket and run the specified command " + "detached,\n" + "\t\t and have dtach run in the foreground.\n" + " -p\t\tCopy the contents of standard input to the specified\n" + "\t\t socket.\n" + "Options:\n" + " -e \tSet the detach character to , defaults " + "to ^\\.\n" + " -E\t\tDisable the detach character.\n" + " -r \tSet the redraw method to . The " + "valid methods are:\n" + "\t\t none: Don't redraw at all.\n" + "\t\t ctrl_l: Send a Ctrl L character to the program.\n" + "\t\t winch: Send a WINCH signal to the program.\n" + " -z\t\tDisable processing of the suspend key.\n" + "\nReport any bugs to <" PACKAGE_BUGREPORT ">.\n", + PACKAGE_VERSION, __DATE__, __TIME__); + exit(0); +} + +int +main(int argc, char **argv) +{ + int mode = 0; + + /* Save the program name */ + progname = argv[0]; + ++argv; --argc; + + /* Parse the arguments */ + if (argc >= 1 && **argv == '-') + { + if (strncmp(*argv, "--help", strlen(*argv)) == 0) + usage(); + else if (strncmp(*argv, "--version", strlen(*argv)) == 0) + { + printf("dtach - version %s, compiled on %s at %s.\n", + PACKAGE_VERSION, __DATE__, __TIME__); + return 0; + } + + mode = argv[0][1]; + if (mode == '?') + usage(); + else if (mode != 'a' && mode != 'c' && mode != 'n' && + mode != 'A' && mode != 'N' && mode != 'p') + { + printf("%s: Invalid mode '-%c'\n", progname, mode); + printf("Try '%s --help' for more information.\n", + progname); + return 1; + } + } + if (!mode) + { + printf("%s: No mode was specified.\n", progname); + printf("Try '%s --help' for more information.\n", + progname); + return 1; + } + ++argv; --argc; + + if (argc < 1) + { + printf("%s: No socket was specified.\n", progname); + printf("Try '%s --help' for more information.\n", + progname); + return 1; + } + sockname = *argv; + ++argv; --argc; + + if (mode == 'p') + { + if (argc > 0) + { + printf("%s: Invalid number of arguments.\n", + progname); + printf("Try '%s --help' for more information.\n", + progname); + return 1; + } + return push_main(); + } + + while (argc >= 1 && **argv == '-') + { + char *p; + + for (p = argv[0] + 1; *p; ++p) + { + if (*p == 'E') + detach_char = -1; + else if (*p == 'z') + no_suspend = 1; + else if (*p == 'e') + { + ++argv; --argc; + if (argc < 1) + { + printf("%s: No escape character " + "specified.\n", progname); + printf("Try '%s --help' for more " + "information.\n", progname); + return 1; + } + if (argv[0][0] == '^' && argv[0][1]) + { + if (argv[0][1] == '?') + detach_char = '\177'; + else + detach_char = argv[0][1] & 037; + } + else + detach_char = argv[0][0]; + break; + } + else if (*p == 'r') + { + ++argv; --argc; + if (argc < 1) + { + printf("%s: No redraw method " + "specified.\n", progname); + printf("Try '%s --help' for more " + "information.\n", progname); + return 1; + } + if (strcmp(argv[0], "none") == 0) + redraw_method = REDRAW_NONE; + else if (strcmp(argv[0], "ctrl_l") == 0) + redraw_method = REDRAW_CTRL_L; + else if (strcmp(argv[0], "winch") == 0) + redraw_method = REDRAW_WINCH; + else + { + printf("%s: Invalid redraw method " + "specified.\n", progname); + printf("Try '%s --help' for more " + "information.\n", progname); + return 1; + } + break; + } + else + { + printf("%s: Invalid option '-%c'\n", + progname, *p); + printf("Try '%s --help' for more information.\n", + progname); + return 1; + } + } + ++argv; --argc; + } + + if (mode != 'a' && argc < 1) + { + printf("%s: No command was specified.\n", progname); + printf("Try '%s --help' for more information.\n", + progname); + return 1; + } + + /* Save the original terminal settings. */ + if (tcgetattr(0, &orig_term) < 0) + { + memset(&orig_term, 0, sizeof(struct termios)); + dont_have_tty = 1; + } + + if (dont_have_tty && mode != 'n' && mode != 'N') + { + printf("%s: Attaching to a session requires a terminal.\n", + progname); + return 1; + } + + if (mode == 'a') + { + if (argc > 0) + { + printf("%s: Invalid number of arguments.\n", + progname); + printf("Try '%s --help' for more information.\n", + progname); + return 1; + } + return attach_main(0); + } + else if (mode == 'n') + return master_main(argv, 0, 0); + else if (mode == 'N') + return master_main(argv, 0, 1); + else if (mode == 'c') + { + if (master_main(argv, 1, 0) != 0) + return 1; + return attach_main(0); + } + else if (mode == 'A') + { + /* Try to attach first. If that doesn't work, create a new + ** socket. */ + if (attach_main(1) != 0) + { + if (errno == ECONNREFUSED || errno == ENOENT) + { + if (errno == ECONNREFUSED) + unlink(sockname); + if (master_main(argv, 1, 0) != 0) + return 1; + } + return attach_main(0); + } + } + return 0; +} diff --git a/master.c b/master.c new file mode 100644 index 0000000..5c053e0 --- /dev/null +++ b/master.c @@ -0,0 +1,799 @@ +/* + dtach - A simple program that emulates the detach feature of screen. + Copyright (C) 2004-2016 Ned T. Crigler + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ +#include "dtach.h" + +/* The pty struct - The pty information is stored here. */ +struct pty +{ + /* File descriptor of the pty */ + int fd; +#ifdef BROKEN_MASTER + /* File descriptor of the slave side of the pty. For broken systems. */ + int slave; +#endif + /* Process id of the child. */ + pid_t pid; + /* The terminal parameters of the pty. Old and new for comparision + ** purposes. */ + struct termios term; + /* The current window size of the pty. */ + struct winsize ws; +}; + +/* A connected client */ +struct client +{ + /* The next client in the linked list. */ + struct client *next; + /* The previous client in the linked list. */ + struct client **pprev; + /* File descriptor of the client. */ + int fd; + /* Whether or not the client is attached. */ + int attached; +}; + +/* The list of connected clients. */ +static struct client *clients; +/* The pseudo-terminal created for the child process. */ +static struct pty the_pty; + +#ifndef HAVE_FORKPTY +pid_t forkpty(int *amaster, char *name, struct termios *termp, + struct winsize *winp); +#endif + +/* Unlink the socket */ +static void +unlink_socket(void) +{ + unlink(sockname); +} + +/* Signal */ +static RETSIGTYPE +die(int sig) +{ + /* Well, the child died. */ + if (sig == SIGCHLD) + { +#ifdef BROKEN_MASTER + /* Damn you Solaris! */ + close(the_pty.fd); +#endif + return; + } + exit(1); +} + +/* Sets a file descriptor to non-blocking mode. */ +static int +setnonblocking(int fd) +{ + int flags; + +#if defined(O_NONBLOCK) + flags = fcntl(fd, F_GETFL); + if (flags < 0 || fcntl(fd, F_SETFL, flags | O_NONBLOCK) < 0) + return -1; + return 0; +#elif defined(FIONBIO) + flags = 1; + if (ioctl(fd, FIONBIO, &flags) < 0) + return -1; + return 0; +#else +#warning Do not know how to set non-blocking mode. + return 0; +#endif +} + +/* Initialize the pty structure. */ +static int +init_pty(char **argv, int statusfd) +{ + /* Use the original terminal's settings. We don't have to set the + ** window size here, because the attacher will send it in a packet. */ + the_pty.term = orig_term; + memset(&the_pty.ws, 0, sizeof(struct winsize)); + + /* Create the pty process */ + if (!dont_have_tty) + the_pty.pid = forkpty(&the_pty.fd, NULL, &the_pty.term, NULL); + else + the_pty.pid = forkpty(&the_pty.fd, NULL, NULL, NULL); + if (the_pty.pid < 0) + return -1; + else if (the_pty.pid == 0) + { + /* Child.. Execute the program. */ + execvp(*argv, argv); + + /* Report the error to statusfd if we can, or stdout if we + ** can't. */ + if (statusfd != -1) + dup2(statusfd, 1); + else + printf(EOS "\r\n"); + + printf("%s: could not execute %s: %s\r\n", progname, + *argv, strerror(errno)); + fflush(stdout); + _exit(127); + } + /* Parent.. Finish up and return */ +#ifdef BROKEN_MASTER + { + char *buf; + + buf = ptsname(the_pty.fd); + the_pty.slave = open(buf, O_RDWR|O_NOCTTY); + } +#endif + return 0; +} + +/* Send a signal to the slave side of a pseudo-terminal. */ +static void +killpty(struct pty *pty, int sig) +{ + pid_t pgrp = -1; + +#ifdef TIOCSIGNAL + if (ioctl(pty->fd, TIOCSIGNAL, sig) >= 0) + return; +#endif +#ifdef TIOCSIG + if (ioctl(pty->fd, TIOCSIG, sig) >= 0) + return; +#endif +#ifdef TIOCGPGRP +#ifdef BROKEN_MASTER + if (ioctl(pty->slave, TIOCGPGRP, &pgrp) >= 0 && pgrp != -1 && + kill(-pgrp, sig) >= 0) + return; +#endif + if (ioctl(pty->fd, TIOCGPGRP, &pgrp) >= 0 && pgrp != -1 && + kill(-pgrp, sig) >= 0) + return; +#endif + + /* Fallback using the child's pid. */ + kill(-pty->pid, sig); +} + +/* Creates a new unix domain socket. */ +static int +create_socket(char *name) +{ + int s; + struct sockaddr_un sockun; + + if (strlen(name) > sizeof(sockun.sun_path) - 1) + { + errno = ENAMETOOLONG; + return -1; + } + + s = socket(PF_UNIX, SOCK_STREAM, 0); + if (s < 0) + return -1; + sockun.sun_family = AF_UNIX; + strcpy(sockun.sun_path, name); + if (bind(s, (struct sockaddr*)&sockun, sizeof(sockun)) < 0) + { + close(s); + return -1; + } + if (listen(s, 128) < 0) + { + close(s); + return -1; + } + if (setnonblocking(s) < 0) + { + close(s); + return -1; + } + /* chmod it to prevent any suprises */ + if (chmod(name, 0600) < 0) + { + close(s); + return -1; + } + return s; +} + +/* Update the modes on the socket. */ +static void +update_socket_modes(int exec) +{ + struct stat st; + mode_t newmode; + + if (stat(sockname, &st) < 0) + return; + + if (exec) + newmode = st.st_mode | S_IXUSR; + else + newmode = st.st_mode & ~S_IXUSR; + + if (st.st_mode != newmode) + chmod(sockname, newmode); +} + +/* Process activity on the pty - Input and terminal changes are sent out to +** the attached clients. If the pty goes away, we die. */ +static void +pty_activity(int s) +{ + unsigned char buf[BUFSIZE]; + ssize_t len; + struct client *p; + fd_set readfds, writefds; + int highest_fd, nclients; + + /* Read the pty activity */ + len = read(the_pty.fd, buf, sizeof(buf)); + + /* Error -> die */ + if (len <= 0) + exit(1); + +#ifdef BROKEN_MASTER + /* Get the current terminal settings. */ + if (tcgetattr(the_pty.slave, &the_pty.term) < 0) + exit(1); +#else + /* Get the current terminal settings. */ + if (tcgetattr(the_pty.fd, &the_pty.term) < 0) + exit(1); +#endif + +top: + /* + ** Wait until at least one client is writable. Also wait on the control + ** socket in case a new client tries to connect. + */ + FD_ZERO(&readfds); + FD_ZERO(&writefds); + FD_SET(s, &readfds); + highest_fd = s; + for (p = clients, nclients = 0; p; p = p->next) + { + if (!p->attached) + continue; + FD_SET(p->fd, &writefds); + if (p->fd > highest_fd) + highest_fd = p->fd; + nclients++; + } + if (nclients == 0) + return; + if (select(highest_fd + 1, &readfds, &writefds, NULL, NULL) < 0) + return; + + /* Send the data out to the clients. */ + for (p = clients, nclients = 0; p; p = p->next) + { + ssize_t written; + + if (!FD_ISSET(p->fd, &writefds)) + continue; + + written = 0; + while (written < len) + { + ssize_t n = write(p->fd, buf + written, len - written); + + if (n > 0) + { + written += n; + continue; + } + else if (n < 0 && errno == EINTR) + continue; + else if (n < 0 && errno != EAGAIN) + nclients = -1; + break; + } + if (nclients != -1 && written == len) + nclients++; + } + + /* Try again if nothing happened. */ + if (!FD_ISSET(s, &readfds) && nclients == 0) + goto top; +} + +/* Process activity on the control socket */ +static void +control_activity(int s) +{ + int fd; + struct client *p; + + /* Accept the new client and link it in. */ + fd = accept(s, NULL, NULL); + if (fd < 0) + return; + else if (setnonblocking(fd) < 0) + { + close(fd); + return; + } + + /* Link it in. */ + p = malloc(sizeof(struct client)); + p->fd = fd; + p->attached = 0; + p->pprev = &clients; + p->next = *(p->pprev); + if (p->next) + p->next->pprev = &p->next; + *(p->pprev) = p; +} + +/* Process activity from a client. */ +static void +client_activity(struct client *p) +{ + ssize_t len; + struct packet pkt; + + /* Read the activity. */ + len = read(p->fd, &pkt, sizeof(struct packet)); + if (len < 0 && (errno == EAGAIN || errno == EINTR)) + return; + + /* Close the client on an error. */ + if (len <= 0) + { + close(p->fd); + if (p->next) + p->next->pprev = p->pprev; + *(p->pprev) = p->next; + free(p); + return; + } + + /* Push out data to the program. */ + if (pkt.type == MSG_PUSH) + { + if (pkt.len <= sizeof(pkt.u.buf)) + write(the_pty.fd, pkt.u.buf, pkt.len); + } + + /* Attach or detach from the program. */ + else if (pkt.type == MSG_ATTACH) + p->attached = 1; + else if (pkt.type == MSG_DETACH) + p->attached = 0; + + /* Window size change request, without a forced redraw. */ + else if (pkt.type == MSG_WINCH) + { + the_pty.ws = pkt.u.ws; + ioctl(the_pty.fd, TIOCSWINSZ, &the_pty.ws); + } + + /* Force a redraw using a particular method. */ + else if (pkt.type == MSG_REDRAW) + { + int method = pkt.len; + + /* If the client didn't specify a particular method, use + ** whatever we had on startup. */ + if (method == REDRAW_UNSPEC) + method = redraw_method; + if (method == REDRAW_NONE) + return; + + /* Set the window size. */ + the_pty.ws = pkt.u.ws; + ioctl(the_pty.fd, TIOCSWINSZ, &the_pty.ws); + + /* Send a ^L character if the terminal is in no-echo and + ** character-at-a-time mode. */ + if (method == REDRAW_CTRL_L) + { + char c = '\f'; + + if (((the_pty.term.c_lflag & (ECHO|ICANON)) == 0) && + (the_pty.term.c_cc[VMIN] == 1)) + { + write(the_pty.fd, &c, 1); + } + } + /* Send a WINCH signal to the program. */ + else if (method == REDRAW_WINCH) + { + killpty(&the_pty, SIGWINCH); + } + } +} + +/* The master process - It watches over the pty process and the attached */ +/* clients. */ +static void +master_process(int s, char **argv, int waitattach, int statusfd) +{ + struct client *p, *next; + fd_set readfds; + int highest_fd; + int nullfd; + + int has_attached_client = 0; + + /* Okay, disassociate ourselves from the original terminal, as we + ** don't care what happens to it. */ + setsid(); + + /* Set a trap to unlink the socket when we die. */ + atexit(unlink_socket); + + /* Create a pty in which the process is running. */ + signal(SIGCHLD, die); + if (init_pty(argv, statusfd) < 0) + { + if (statusfd != -1) + dup2(statusfd, 1); + if (errno == ENOENT) + printf("%s: Could not find a pty.\n", progname); + else + printf("%s: init_pty: %s\n", progname, strerror(errno)); + exit(1); + } + + /* Set up some signals. */ + signal(SIGPIPE, SIG_IGN); + signal(SIGXFSZ, SIG_IGN); + signal(SIGHUP, SIG_IGN); + signal(SIGTTIN, SIG_IGN); + signal(SIGTTOU, SIG_IGN); + signal(SIGINT, die); + signal(SIGTERM, die); + + /* Close statusfd, since we don't need it anymore. */ + if (statusfd != -1) + close(statusfd); + + /* Make sure stdin/stdout/stderr point to /dev/null. We are now a + ** daemon. */ + nullfd = open("/dev/null", O_RDWR); + dup2(nullfd, 0); + dup2(nullfd, 1); + dup2(nullfd, 2); + if (nullfd > 2) + close(nullfd); + + /* Loop forever. */ + while (1) + { + int new_has_attached_client = 0; + + /* Re-initialize the file descriptor set for select. */ + FD_ZERO(&readfds); + FD_SET(s, &readfds); + highest_fd = s; + + /* + ** When waitattach is set, wait until the client attaches + ** before trying to read from the pty. + */ + if (waitattach) + { + if (clients && clients->attached) + waitattach = 0; + } + else + { + FD_SET(the_pty.fd, &readfds); + if (the_pty.fd > highest_fd) + highest_fd = the_pty.fd; + } + + for (p = clients; p; p = p->next) + { + FD_SET(p->fd, &readfds); + if (p->fd > highest_fd) + highest_fd = p->fd; + + if (p->attached) + new_has_attached_client = 1; + } + + /* chmod the socket if necessary. */ + if (has_attached_client != new_has_attached_client) + { + update_socket_modes(new_has_attached_client); + has_attached_client = new_has_attached_client; + } + + /* Wait for something to happen. */ + if (select(highest_fd + 1, &readfds, NULL, NULL, NULL) < 0) + { + if (errno == EINTR || errno == EAGAIN) + continue; + exit(1); + } + + /* New client? */ + if (FD_ISSET(s, &readfds)) + control_activity(s); + /* Activity on a client? */ + for (p = clients; p; p = next) + { + next = p->next; + if (FD_ISSET(p->fd, &readfds)) + client_activity(p); + } + /* pty activity? */ + if (FD_ISSET(the_pty.fd, &readfds)) + pty_activity(s); + } +} + +int +master_main(char **argv, int waitattach, int dontfork) +{ + int fd[2] = {-1, -1}; + int s; + pid_t pid; + + /* Use a default redraw method if one hasn't been specified yet. */ + if (redraw_method == REDRAW_UNSPEC) + redraw_method = REDRAW_CTRL_L; + + /* Create the unix domain socket. */ + s = create_socket(sockname); + if (s < 0 && errno == ENAMETOOLONG) + { + char *slash = strrchr(sockname, '/'); + + /* Try to shorten the socket's path name by using chdir. */ + if (slash) + { + int dirfd = open(".", O_RDONLY); + + if (dirfd >= 0) + { + *slash = '\0'; + if (chdir(sockname) >= 0) + { + s = create_socket(slash + 1); + fchdir(dirfd); + } + *slash = '/'; + close(dirfd); + } + } + } + if (s < 0) + { + printf("%s: %s: %s\n", progname, sockname, strerror(errno)); + return 1; + } + +#if defined(F_SETFD) && defined(FD_CLOEXEC) + fcntl(s, F_SETFD, FD_CLOEXEC); + + /* If FD_CLOEXEC works, create a pipe and use it to report any errors + ** that occur while trying to execute the program. */ + if (dontfork) + { + fd[1] = dup(2); + if (fcntl(fd[1], F_SETFD, FD_CLOEXEC) < 0) + { + close(fd[1]); + fd[1] = -1; + } + } + else if (pipe(fd) >= 0) + { + if (fcntl(fd[0], F_SETFD, FD_CLOEXEC) < 0 || + fcntl(fd[1], F_SETFD, FD_CLOEXEC) < 0) + { + close(fd[0]); + close(fd[1]); + fd[0] = fd[1] = -1; + } + } +#endif + + if (dontfork) + { + master_process(s, argv, waitattach, fd[1]); + return 0; + } + + /* Fork off so we can daemonize and such */ + pid = fork(); + if (pid < 0) + { + printf("%s: fork: %s\n", progname, strerror(errno)); + unlink_socket(); + return 1; + } + else if (pid == 0) + { + /* Child - this becomes the master */ + if (fd[0] != -1) + close(fd[0]); + master_process(s, argv, waitattach, fd[1]); + return 0; + } + /* Parent - just return. */ + +#if defined(F_SETFD) && defined(FD_CLOEXEC) + /* Check if an error occurred while trying to execute the program. */ + if (fd[0] != -1) + { + char buf[1024]; + ssize_t len; + + close(fd[1]); + len = read(fd[0], buf, sizeof(buf)); + if (len > 0) + { + write(2, buf, len); + kill(pid, SIGTERM); + return 1; + } + close(fd[0]); + } +#endif + close(s); + return 0; +} + +/* BSDish functions for systems that don't have them. */ +#ifndef HAVE_OPENPTY +#define HAVE_OPENPTY +/* openpty: Use /dev/ptmx and Unix98 if we have it. */ +#if defined(HAVE_PTSNAME) && defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) +int +openpty(int *amaster, int *aslave, char *name, struct termios *termp, + struct winsize *winp) +{ + int master, slave; + char *buf; + +#ifdef _AIX + master = open("/dev/ptc", O_RDWR|O_NOCTTY); + if (master < 0) + return -1; + buf = ttyname(master); + if (!buf) + return -1; + + slave = open(buf, O_RDWR|O_NOCTTY); + if (slave < 0) + return -1; +#else + master = open("/dev/ptmx", O_RDWR); + if (master < 0) + return -1; + if (grantpt(master) < 0) + return -1; + if (unlockpt(master) < 0) + return -1; + buf = ptsname(master); + if (!buf) + return -1; + + slave = open(buf, O_RDWR|O_NOCTTY); + if (slave < 0) + return -1; + +#ifdef I_PUSH + if (ioctl(slave, I_PUSH, "ptem") < 0) + return -1; + if (ioctl(slave, I_PUSH, "ldterm") < 0) + return -1; +#endif +#endif + + *amaster = master; + *aslave = slave; + if (name) + strcpy(name, buf); + if (termp) + tcsetattr(slave, TCSAFLUSH, termp); + if (winp) + ioctl(slave, TIOCSWINSZ, winp); + return 0; +} +#else +#error Do not know how to define openpty. +#endif +#endif + +#ifndef HAVE_FORKPTY +#if defined(HAVE_OPENPTY) +pid_t +forkpty(int *amaster, char *name, struct termios *termp, + struct winsize *winp) +{ + pid_t pid; + int master, slave; + + if (openpty(&master, &slave, name, termp, winp) < 0) + return -1; + *amaster = master; + + /* Fork off... */ + pid = fork(); + if (pid < 0) + return -1; + else if (pid == 0) + { + char *buf; + int fd; + + setsid(); +#ifdef TIOCSCTTY + buf = NULL; + if (ioctl(slave, TIOCSCTTY, NULL) < 0) + _exit(1); +#elif defined(_AIX) + fd = open("/dev/tty", O_RDWR|O_NOCTTY); + if (fd >= 0) + { + ioctl(fd, TIOCNOTTY, NULL); + close(fd); + } + + buf = ttyname(master); + fd = open(buf, O_RDWR); + close(fd); + + fd = open("/dev/tty", O_WRONLY); + if (fd < 0) + _exit(1); + close(fd); + + if (termp && tcsetattr(slave, TCSAFLUSH, termp) == -1) + _exit(1); + if (ioctl(slave, TIOCSWINSZ, winp) == -1) + _exit(1); +#else + buf = ptsname(master); + fd = open(buf, O_RDWR); + close(fd); +#endif + dup2(slave, 0); + dup2(slave, 1); + dup2(slave, 2); + + if (slave > 2) + close(slave); + close(master); + return 0; + } + else + { + close(slave); + return pid; + } +} +#else +#error Do not know how to define forkpty. +#endif +#endif