criu/test/zdtm/static/console.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>

#include <sys/stat.h>
#include <sys/types.h>
#include <sys/sysmacros.h>

#include "zdtmtst.h"

const char *test_doc	= "Check c/r for console device";
const char *test_author	= "Cyrill Gorcunov <gorcunov@openvz.org>";

char *filename;
TEST_OPTION(filename, string, "file name", 1);

int main(int argc, char ** argv)
{
	struct stat st1, st2;
	int fd;

	test_init(argc, argv);

	if (mknod(filename, S_IFCHR | S_IRUSR | S_IWUSR, makedev(5,1))) {
		pr_perror("Can't create console %s", filename);
		return 1;
	}

	fd = open(filename, O_RDONLY);
	if (fd < 0) {
		pr_perror("Open console %s failed", filename);
		return 1;
	}

	if (fstat(fd, &st1)) {
		pr_perror("Can't stat %s console", filename);
		return 1;
	}

	test_daemon();
	test_waitsig();

	if (fstat(fd, &st2)) {
		pr_perror("Can't stat %s console", filename);
		return 1;
	}

	if (st1.st_rdev != st2.st_rdev) {
		fail("Console rdev mismatch %x != %x on %s",
		     (int)st1.st_rdev, (int)st2.st_rdev,
		     filename);
		return 1;
	}

	pass();
	return 0;
}