xref: /minix/external/bsd/tmux/dist/osdep-sunos.c (revision e3b78ef1)
1 /* $Id: osdep-sunos.c,v 1.1.1.2 2011/08/17 18:40:06 jmmv Exp $ */
2 
3 /*
4  * Copyright (c) 2009 Todd Carson <toc@daybefore.net>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/types.h>
20 #include <sys/stat.h>
21 
22 #include <event.h>
23 #include <fcntl.h>
24 #include <procfs.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <unistd.h>
28 
29 #include "tmux.h"
30 
31 char *
32 osdep_get_name(int fd, char *tty)
33 {
34 	struct psinfo	 p;
35 	struct stat	 st;
36 	char		*path;
37 	ssize_t		 bytes;
38 	int		 f;
39 	pid_t		 pgrp;
40 
41 	if ((f = open(tty, O_RDONLY)) < 0)
42 		return (NULL);
43 
44 	if ((fstat(f, &st) != 0) ||
45 	    (ioctl(f, TIOCGPGRP, &pgrp) != 0)) {
46 		close(f);
47 		return (NULL);
48 	}
49 	close(f);
50 
51 	xasprintf(&path, "/proc/%hu/psinfo", pgrp);
52 	f = open(path, O_RDONLY);
53 	xfree(path);
54 	if (f < 0)
55 		return (NULL);
56 
57 	bytes = read(f, &p, sizeof(p));
58 	close(f);
59 	if (bytes != sizeof(p))
60 		return (NULL);
61 
62 	if (p.pr_ttydev != st.st_rdev)
63 		return (NULL);
64 
65 	return (xstrdup(p.pr_fname));
66 }
67 
68 struct event_base *
69 osdep_event_init(void)
70 {
71 	return (event_init());
72 }
73