1 /* $OpenBSD$ */
2
3 /*
4 * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
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/param.h>
20 #include <sys/stat.h>
21
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <unistd.h>
25
26 #include "tmux.h"
27
28 char *
osdep_get_name(int fd,__unused char * tty)29 osdep_get_name(int fd, __unused char *tty)
30 {
31 FILE *f;
32 char *path, *buf;
33 size_t len;
34 int ch;
35 pid_t pgrp;
36
37 if ((pgrp = tcgetpgrp(fd)) == -1)
38 return (NULL);
39
40 xasprintf(&path, "/proc/%lld/cmdline", (long long) pgrp);
41 if ((f = fopen(path, "r")) == NULL) {
42 free(path);
43 return (NULL);
44 }
45 free(path);
46
47 len = 0;
48 buf = NULL;
49 while ((ch = fgetc(f)) != EOF) {
50 if (ch == '\0')
51 break;
52 buf = xrealloc(buf, len + 2);
53 buf[len++] = ch;
54 }
55 if (buf != NULL)
56 buf[len] = '\0';
57
58 fclose(f);
59 return (buf);
60 }
61
62 char *
osdep_get_cwd(int fd)63 osdep_get_cwd(int fd)
64 {
65 static char target[MAXPATHLEN + 1];
66 char *path;
67 pid_t pgrp;
68 ssize_t n;
69
70 if ((pgrp = tcgetpgrp(fd)) == -1)
71 return (NULL);
72
73 xasprintf(&path, "/proc/%lld/cwd", (long long) pgrp);
74 n = readlink(path, target, MAXPATHLEN);
75 free(path);
76 if (n > 0) {
77 target[n] = '\0';
78 return (target);
79 }
80 return (NULL);
81 }
82
83 struct event_base *
osdep_event_init(void)84 osdep_event_init(void)
85 {
86 return (event_init());
87 }
88