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[09c558]: osdep-sunos.c Maximize Restore History

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osdep-sunos.c    66 lines (54 with data), 1.6 kB

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/* $Id: osdep-sunos.c,v 1.2 2009-10-15 07:11:25 nicm Exp $ */
/*
* Copyright (c) 2009 Todd Carson <toc@daybefore.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.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <procfs.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "tmux.h"
char *
osdep_get_name(int fd, char *tty)
{
struct psinfo p;
struct stat st;
char *path;
ssize_t bytes;
int f;
pid_t pgrp;
if ((f = open(tty, O_RDONLY)) < 0)
return (NULL);
if ((fstat(f, &st) != 0) ||
(ioctl(f, TIOCGPGRP, &pgrp) != 0)) {
close(f);
return (NULL);
}
close(f);
xasprintf(&path, "/proc/%hu/psinfo", pgrp);
f = open(path, O_RDONLY);
xfree(path);
if (f < 0)
return (NULL);
bytes = read(f, &p, sizeof(p));
close(f);
if (bytes != sizeof(p))
return (NULL);
if (p.pr_ttydev != st.st_rdev)
return (NULL);
return (xstrdup(p.pr_fname));
}