2017-03-24 10:05:53 +00:00
|
|
|
/*
|
|
|
|
|
* Copyright (c) 2017 Nicholas Marriott <nicholas.marriott@gmail.com>
|
|
|
|
|
*
|
|
|
|
|
* 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/types.h>
|
|
|
|
|
|
|
|
|
|
#include <glob.h>
|
|
|
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
|
|
#include "compat.h"
|
|
|
|
|
|
|
|
|
|
void fatal(const char *, ...);
|
|
|
|
|
void fatalx(const char *, ...);
|
|
|
|
|
|
|
|
|
|
#ifdef HAVE_PROC_PID
|
|
|
|
|
int
|
|
|
|
|
getdtablecount(void)
|
|
|
|
|
{
|
|
|
|
|
char path[PATH_MAX];
|
|
|
|
|
glob_t g;
|
2017-12-27 13:54:37 +00:00
|
|
|
int n = 0;
|
2017-03-24 10:05:53 +00:00
|
|
|
|
|
|
|
|
if (snprintf(path, sizeof path, "/proc/%ld/fd/*", (long)getpid()) < 0)
|
|
|
|
|
fatal("snprintf overflow");
|
2017-12-27 13:54:37 +00:00
|
|
|
if (glob(path, 0, NULL, &g) == 0)
|
|
|
|
|
n = g.gl_pathc;
|
2017-03-24 10:05:53 +00:00
|
|
|
globfree(&g);
|
|
|
|
|
return (n);
|
|
|
|
|
}
|
|
|
|
|
#else
|
|
|
|
|
int
|
|
|
|
|
getdtablecount(void)
|
|
|
|
|
{
|
|
|
|
|
return (0);
|
|
|
|
|
}
|
|
|
|
|
#endif
|
