mirror of
https://github.com/tmux/tmux.git
synced 2024-12-27 03:48:46 +00:00
113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
/* $OpenBSD$ */
|
|
|
|
/*
|
|
* 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/param.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(__unused 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/%u/psinfo", (u_int) pgrp);
|
|
f = open(path, O_RDONLY);
|
|
free(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));
|
|
}
|
|
|
|
char *
|
|
osdep_get_cwd(int fd)
|
|
{
|
|
static char target[MAXPATHLEN + 1];
|
|
char *path;
|
|
const char *ttypath;
|
|
ssize_t n;
|
|
pid_t pgrp;
|
|
int retval, ttyfd;
|
|
|
|
if ((ttypath = ptsname(fd)) == NULL)
|
|
return (NULL);
|
|
if ((ttyfd = open(ttypath, O_RDONLY|O_NOCTTY)) == -1)
|
|
return (NULL);
|
|
|
|
retval = ioctl(ttyfd, TIOCGPGRP, &pgrp);
|
|
close(ttyfd);
|
|
if (retval == -1)
|
|
return (NULL);
|
|
|
|
xasprintf(&path, "/proc/%u/path/cwd", (u_int) pgrp);
|
|
n = readlink(path, target, MAXPATHLEN);
|
|
free(path);
|
|
if (n > 0) {
|
|
target[n] = '\0';
|
|
return (target);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
struct event_base *
|
|
osdep_event_init(void)
|
|
{
|
|
struct event_base *base;
|
|
|
|
/*
|
|
* On Illumos, evports don't seem to work properly. It is not clear if
|
|
* this a problem in libevent, with the way tmux uses file descriptors,
|
|
* or with some types of file descriptor. But using poll instead is
|
|
* fine.
|
|
*/
|
|
setenv("EVENT_NOEVPORT", "1", 1);
|
|
|
|
base = event_init();
|
|
unsetenv("EVENT_NOEVPORT");
|
|
return (base);
|
|
}
|