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/* $Id: osdep-linux.c,v 1.4 2009-02-09 18:08:01 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"
int
osdep_get_name(int fd, unused char *tty, unused pid_t *last_pid, char **name)
{
FILE *f;
char *path, *buf;
size_t len;
int ch;
pid_t pgrp;
*name = NULL;
if ((pgrp = tcgetpgrp(fd)) == -1)
return (-1);
xasprintf(&path, "/proc/%lld/cmdline", (long long) pgrp);
if ((f = fopen(path, "r")) == NULL) {
xfree(path);
return (-1);
}
xfree(path);
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';
*name = buf;
fclose(f);
return (0);
}
#endif
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