wayland/tests/exec-fd-leak-checker.c

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/*
* Copyright © 2012 Collabora, Ltd.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF 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 <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <limits.h>
#include "test-runner.h"
static int
parse_count(const char *str, int *value)
{
char *end;
long v;
errno = 0;
v = strtol(str, &end, 0);
if ((errno == ERANGE && (v == LONG_MAX || v == LONG_MIN)) ||
(errno != 0 && v == 0) ||
(end == str) ||
(*end != '\0')) {
return -1;
}
if (v < 0 || v > INT_MAX) {
return -1;
}
*value = v;
return 0;
}
int main(int argc, char *argv[])
{
int expected;
if (argc != 2)
goto help_out;
if (parse_count(argv[1], &expected) < 0)
goto help_out;
if (count_open_fds() == expected)
return EXIT_SUCCESS;
else
return EXIT_FAILURE;
help_out:
fprintf(stderr, "Usage: %s N\n"
"where N is the expected number of open file descriptors.\n"
"This program exits with a failure if the number "
"does not match exactly.\n", argv[0]);
return EXIT_FAILURE;
}