Don't treat TMUX_TMPDIR as a potential file

The point of setting TMUX_TMPDIR is to then make any labels from -L go to
that directory.  In the case of makesocketpath() with no TMUX_TMPDIR set,
would set both the path and the default socket to a file.  The checking of
the permissions on the file worked fine in that case, but when TMUX_TMPDIR
is set, won't work on a directory.

This fixes the problem by ensuring the check on the permissions is performed
on directories only.
This commit is contained in:
Thomas 2013-09-26 12:00:48 +01:00
parent 75ec17f0b5
commit bda970b3b1

6
tmux.c
View File

@ -184,7 +184,8 @@ makesocketpath(const char *label)
errno = ENOTDIR;
return (NULL);
}
if (sb.st_uid != uid || (sb.st_mode & (S_IRWXG|S_IRWXO)) != 0) {
if (sb.st_uid != uid || (!S_ISDIR(sb.st_mode) &&
sb.st_mode & (S_IRWXG|S_IRWXO)) != 0) {
errno = EACCES;
return (NULL);
}
@ -387,7 +388,8 @@ main(int argc, char **argv)
/* -L or default set. */
if (label != NULL) {
if ((path = makesocketpath(label)) == NULL) {
fprintf(stderr, "can't create socket\n");
fprintf(stderr, "can't create socket: %s\n",
strerror(errno));
exit(1);
}
}