freebsd-dev/tools/regression/lib/libc/string/test-strerror.c

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/*-
* Copyright (c) 2001 Wes Peters <wes@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int
main(void)
{
char buf[64];
char *sret;
int iret;
/*
* strerror() failure tests.
*/
errno = 0;
sret = strerror(0);
assert(strcmp(sret, "Unknown error: 0") == 0);
assert(errno == EINVAL);
errno = 0;
sret = strerror(INT_MAX);
snprintf(buf, sizeof(buf), "Unknown error: %d", INT_MAX);
assert(strcmp(sret, buf) == 0);
assert(errno == EINVAL);
/*
* strerror() success tests.
*/
errno = 0;
sret = strerror(EPERM);
assert(strcmp(sret, "Operation not permitted") == 0);
assert(errno == 0);
errno = 0;
sret = strerror(EPFNOSUPPORT);
assert(strcmp(sret, "Protocol family not supported") == 0);
assert(errno == 0);
errno = 0;
sret = strerror(ELAST);
assert(errno == 0);
printf("PASS strerror()\n");
/*
* strerror_r() failure tests.
*/
memset(buf, '*', sizeof(buf));
iret = strerror_r(0, buf, sizeof(buf));
assert(strcmp(buf, "Unknown error: 0") == 0);
assert(iret == EINVAL);
memset(buf, '*', sizeof(buf));
/* One byte too short. */
iret = strerror_r(EPERM, buf, strlen("Operation not permitted"));
assert(strcmp(buf, "Operation not permitte") == 0);
assert(iret == ERANGE);
memset(buf, '*', sizeof(buf));
/* One byte too short. */
iret = strerror_r(-1, buf, strlen("Unknown error: -1"));
assert(strcmp(buf, "Unknown error: -") == 0);
assert(iret == EINVAL);
memset(buf, '*', sizeof(buf));
/* Two bytes too short. */
iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 1);
assert(strcmp(buf, "Unknown error: ") == 0);
assert(iret == EINVAL);
memset(buf, '*', sizeof(buf));
/* Three bytes too short. */
iret = strerror_r(-2, buf, strlen("Unknown error: -2") - 2);
assert(strcmp(buf, "Unknown error:") == 0);
assert(iret == EINVAL);
memset(buf, '*', sizeof(buf));
/* One byte too short. */
iret = strerror_r(12345, buf, strlen("Unknown error: 12345"));
assert(strcmp(buf, "Unknown error: 1234") == 0);
assert(iret == EINVAL);
/*
* strerror_r() success tests.
*/
memset(buf, '*', sizeof(buf));
iret = strerror_r(EDEADLK, buf, sizeof(buf));
assert(strcmp(buf, "Resource deadlock avoided") == 0);
assert(iret == 0);
memset(buf, '*', sizeof(buf));
iret = strerror_r(EPROCLIM, buf, sizeof(buf));
assert(strcmp(buf, "Too many processes") == 0);
assert(iret == 0);
printf("PASS strerror_r()\n");
exit(0);
}