1 dd038bc6 2021-09-21 thomas.ad /*
 2 dd038bc6 2021-09-21 thomas.ad  * Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
 3 dd038bc6 2021-09-21 thomas.ad  *
 4 dd038bc6 2021-09-21 thomas.ad  * Permission to use, copy, modify, and distribute this software for any
 5 dd038bc6 2021-09-21 thomas.ad  * purpose with or without fee is hereby granted, provided that the above
 6 dd038bc6 2021-09-21 thomas.ad  * copyright notice and this permission notice appear in all copies.
 7 dd038bc6 2021-09-21 thomas.ad  *
 8 dd038bc6 2021-09-21 thomas.ad  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 dd038bc6 2021-09-21 thomas.ad  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 dd038bc6 2021-09-21 thomas.ad  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 dd038bc6 2021-09-21 thomas.ad  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 dd038bc6 2021-09-21 thomas.ad  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
13 dd038bc6 2021-09-21 thomas.ad  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
14 dd038bc6 2021-09-21 thomas.ad  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 dd038bc6 2021-09-21 thomas.ad  */
16 dd038bc6 2021-09-21 thomas.ad 
17 dd038bc6 2021-09-21 thomas.ad #include <sys/types.h>
18 dd038bc6 2021-09-21 thomas.ad 
19 dd038bc6 2021-09-21 thomas.ad #include <glob.h>
20 dd038bc6 2021-09-21 thomas.ad #include <unistd.h>
21 dd038bc6 2021-09-21 thomas.ad 
22 dd038bc6 2021-09-21 thomas.ad void fatal(const char *, ...);
23 dd038bc6 2021-09-21 thomas.ad void fatalx(const char *, ...);
24 dd038bc6 2021-09-21 thomas.ad 
25 dd038bc6 2021-09-21 thomas.ad #ifdef HAVE_PROC_PID
26 dd038bc6 2021-09-21 thomas.ad int
27 dd038bc6 2021-09-21 thomas.ad getdtablecount(void)
28 dd038bc6 2021-09-21 thomas.ad {
29 dd038bc6 2021-09-21 thomas.ad 	char	path[PATH_MAX];
30 dd038bc6 2021-09-21 thomas.ad 	glob_t	g;
31 dd038bc6 2021-09-21 thomas.ad 	int	n = 0;
32 dd038bc6 2021-09-21 thomas.ad 
33 dd038bc6 2021-09-21 thomas.ad 	if (snprintf(path, sizeof path, "/proc/%ld/fd/*", (long)getpid()) < 0) {
34 dd038bc6 2021-09-21 thomas.ad 		fprintf(stderr, "snprintf overflow");
35 dd038bc6 2021-09-21 thomas.ad 		exit (1);
36 dd038bc6 2021-09-21 thomas.ad 	}
37 dd038bc6 2021-09-21 thomas.ad 	if (glob(path, 0, NULL, &g) == 0)
38 dd038bc6 2021-09-21 thomas.ad 		n = g.gl_pathc;
39 dd038bc6 2021-09-21 thomas.ad 	globfree(&g);
40 dd038bc6 2021-09-21 thomas.ad 	return (n);
41 dd038bc6 2021-09-21 thomas.ad }
42 dd038bc6 2021-09-21 thomas.ad #else
43 dd038bc6 2021-09-21 thomas.ad int
44 dd038bc6 2021-09-21 thomas.ad getdtablecount(void)
45 dd038bc6 2021-09-21 thomas.ad {
46 dd038bc6 2021-09-21 thomas.ad 	return (0);
47 dd038bc6 2021-09-21 thomas.ad }
48 dd038bc6 2021-09-21 thomas.ad #endif