procps/lib/test_process.c
Craig Small aa9bd38d0a tests: Conditionally add prctl to test process
prctl was already bypassed on Cygwin systems. This extends to
non-Linux systems such as kFreeBSD and Hurd.

References:
 https://bugs.debian.org/816237
2016-04-17 09:09:41 +10:00

93 lines
2.2 KiB
C

/*
* test_procps -- program to create a process to test procps
*
* Copyright 2015 Craig Small <csmall@enc.com.au>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#ifdef __linux__
#include <sys/prctl.h>
#endif
#include "c.h"
#define DEFAULT_SLEEPTIME 300
#define MY_NAME "spcorp"
static void usage(void)
{
fprintf(stderr, " %s [options]\n", program_invocation_short_name);
fprintf(stderr, " -s <seconds>\n");
exit(EXIT_FAILURE);
}
void
signal_handler(int signum)
{
switch(signum) {
case SIGUSR1:
printf("SIG SIGUSR1\n");
break;
case SIGUSR2:
printf("SIG SIGUSR2\n");
break;
default:
printf("SIG unknown\n");
exit(EXIT_FAILURE);
}
}
int main(int argc, char *argv[])
{
int sleep_time, opt;
struct sigaction signal_action;
sleep_time = DEFAULT_SLEEPTIME;
while ((opt = getopt(argc, argv, "s:")) != -1) {
switch(opt) {
case 's':
sleep_time = atoi(optarg);
if (sleep_time < 1) {
fprintf(stderr, "sleep time must be 1 second or more\n");
usage();
}
break;
default:
usage();
}
}
/* Setup signal handling */
signal_action.sa_handler = signal_handler;
sigemptyset (&signal_action.sa_mask);
signal_action.sa_flags = 0;
sigaction(SIGUSR1, &signal_action, NULL);
sigaction(SIGUSR2, &signal_action, NULL);
#ifdef __linux__
/* set process name */
prctl(PR_SET_NAME, MY_NAME, NULL, NULL, NULL);
#endif
while (sleep_time > 0) {
sleep_time = sleep(sleep_time);
}
return EXIT_SUCCESS;
}