xref: /minix/external/bsd/tmux/dist/osdep-darwin.c (revision 9f988b79)
1 /* $Id: osdep-darwin.c,v 1.1.1.2 2011/08/17 18:40:06 jmmv Exp $ */
2 
3 /*
4  * Copyright (c) 2009 Joshua Elsasser <josh@elsasser.org>
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/sysctl.h>
21 
22 #include <event.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <unistd.h>
26 
27 char			*osdep_get_name(int, char *);
28 struct event_base	*osdep_event_init(void);
29 
30 #define unused __attribute__ ((unused))
31 
32 char *
33 osdep_get_name(int fd, unused char *tty)
34 {
35 	int	mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, 0 };
36 	size_t	size;
37 	struct kinfo_proc kp;
38 
39 	if ((mib[3] = tcgetpgrp(fd)) == -1)
40 		return (NULL);
41 
42 	size = sizeof kp;
43 	if (sysctl(mib, 4, &kp, &size, NULL, 0) == -1)
44 		return (NULL);
45 	if (*kp.kp_proc.p_comm == '\0')
46 		return (NULL);
47 
48 	return (strdup(kp.kp_proc.p_comm));
49 }
50 
51 struct event_base *
52 osdep_event_init(void)
53 {
54 	/*
55 	 * On OS X, kqueue and poll are both completely broken and don't
56 	 * work on anything except socket file descriptors (yes, really).
57 	 */
58 	setenv("EVENT_NOKQUEUE", "1", 1);
59 	setenv("EVENT_NOPOLL", "1", 1);
60 	return (event_init());
61 }
62