tmux/osdep-linux.c
Nicholas Marriott 2d15f59859 Try to change the window title to match the command running it in. This is done
by reading argv[0] from the process group leader of the group that owns the tty
(tcgetpgrp()). This can't be done portably so some OS-dependent code is
introduced (ugh); OpenBSD, FreeBSD and Linux are supported at the moment.

A new window flag, automatic-rename, is available: if this is set to off, the
window name is not changed. Specifying a name with the new-window, new-session
or rename-window commands will automatically set this flag to off for the
window in question. To disable it entirely set the option to off globally (setw
-g automatic-rename off).
2009-01-20 19:35:03 +00:00

56 lines
1.4 KiB
C

/* $Id: osdep-linux.c,v 1.1 2009-01-20 19:35:03 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef __linux__
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <unistd.h>
#include "tmux.h"
char *
get_argv0(pid_t pgrp)
{
FILE *f;
char *path, *buf;
size_t len;
int ch;
xasprintf(&path, "/proc/%lld/cmdline", (long long) pgrp);
if ((f = fopen(path, "r")) == NULL)
return (NULL);
len = 0;
buf = NULL;
while ((ch = fgetc(f)) != EOF) {
if (ch == '\0')
break;
buf = xrealloc(buf, 1, len + 2);
buf[len++] = ch;
}
if (buf != NULL)
buf[len] = '\0';
return (buf);
}
#endif