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splex
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Expose current session name as $ABDUCO_SESSION 

The supervised command can use it to determine in which session it
is running. It is not necessarily identical to the file name of the
underlying socket as stored in the file system.
This commit is contained in:
Marc André Tanner 2018-05-15 14:27:44 +02:00
parent 0681dc8daf
commit 4c3e2c8c70
2 changed files with 14 additions and 1 deletions
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2
abduco.1
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@ -142,6 +142,8 @@ is not specified, the environment variable
is examined, if it is not set
.Xr dvtm 1
is executed.
.It Ev ABDUCO_SESSION
The current session name available to the supervised command.
.El
.Pp
See the

13
abduco.c
View File

@ -353,6 +353,9 @@ static bool create_socket_dir(struct sockaddr_un *sockaddr) {
static bool set_socket_name(struct sockaddr_un *sockaddr, const char *name) {
const size_t maxlen = sizeof(sockaddr->sun_path);
const char *session_name = NULL;
char buf[maxlen];
if (name[0] == '/') {
if (strlen(name) >= maxlen) {
errno = ENAMETOOLONG;
@ -360,7 +363,7 @@ static bool set_socket_name(struct sockaddr_un *sockaddr, const char *name) {
}
strncpy(sockaddr->sun_path, name, maxlen);
} else if (name[0] == '.' && (name[1] == '.' || name[1] == '/')) {
char buf[maxlen], *cwd = getcwd(buf, sizeof buf);
char *cwd = getcwd(buf, sizeof buf);
if (!cwd)
return false;
if (!xsnprintf(sockaddr->sun_path, maxlen, "%s/%s", cwd, name))
@ -372,9 +375,17 @@ static bool set_socket_name(struct sockaddr_un *sockaddr, const char *name) {
errno = ENAMETOOLONG;
return false;
}
session_name = name;
strncat(sockaddr->sun_path, name, maxlen - strlen(sockaddr->sun_path) - 1);
strncat(sockaddr->sun_path, server.host, maxlen - strlen(sockaddr->sun_path) - 1);
}
if (!session_name) {
strncpy(buf, sockaddr->sun_path, sizeof buf);
session_name = basename(buf);
}
setenv("ABDUCO_SESSION", session_name, 1);
return true;
}