uclibc-ng-test/test/time/tst-ctime.c

/* vi: set sw=4 ts=4: */
/* testcase for ctime(3) with large time
 * Copyright (C) 2010 David A Ramos <daramos@gustav.stanford.edu>
 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#define MAX_POSITIVE(type)  (~0 & ~((type) 1 << (sizeof(type)*8 - 1)))

int do_test(int argc, char **argv) {
	char *correct = 0, *s;
	int status;

	/* need a very high positive number (e.g., max - 1024) */
	time_t test = MAX_POSITIVE(time_t) - 1024;

	s = asctime(localtime(&test));

	if (s) {
		// copy static buffer to heap
		correct = malloc(strlen(s)+1);
		strcpy(correct, s);
	}

	s = ctime(&test);

	printf("ANSI:\t%suClibc:\t%s", correct, s);

	if (s != correct && strcmp(correct, s))
		status = EXIT_FAILURE;
	else
		status = EXIT_SUCCESS;

	if (correct)
		free(correct);

    return status;
}

#include <test-skeleton.c>