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/*-
* Copyright (c) 2002 Tim J. Robbins
* 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.
*/
/*
* Test program for perror() as specified by IEEE Std. 1003.1-2001 and
* ISO/IEC 9899:1999.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <assert.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <paths.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void cleanup(void);
static char tmpfil[PATH_MAX];
int
main(int argc, char *argv[])
{
char lbuf[512];
int i;
char *s;
printf("1..1\n");
strcpy(tmpfil, _PATH_TMP "perror.XXXXXXXX");
if (mkstemp(tmpfil) < 0)
err(1, "mkstemp");
atexit(cleanup);
/* Reopen stderr on a file descriptor other than 2. */
fclose(stderr);
for (i = 0; i < 3; i++)
dup(0);
if (freopen(tmpfil, "r+", stderr) == NULL)
err(1, "%s", tmpfil);
/*
* Test that perror() doesn't call strerror() (4.4BSD bug),
* the two ways of omitting a program name, and the formatting when
* a program name is specified.
*/
s = strerror(ENOENT);
assert(strcmp(s, "No such file or directory") == 0);
errno = EPERM;
perror(NULL);
perror("");
perror("test-perror");
assert(strcmp(s, "No such file or directory") == 0);
/*
* Read it back to check...
*/
rewind(stderr);
s = fgets(lbuf, sizeof(lbuf), stderr);
assert(s != NULL);
assert(strcmp(s, "Operation not permitted\n") == 0);
s = fgets(lbuf, sizeof(lbuf), stderr);
assert(s != NULL);
assert(strcmp(s, "Operation not permitted\n") == 0);
s = fgets(lbuf, sizeof(lbuf), stderr);
assert(s != NULL);
assert(strcmp(s, "test-perror: Operation not permitted\n") == 0);
s = fgets(lbuf, sizeof(lbuf), stderr);
assert(s == NULL);
fclose(stderr);
printf("ok 1 - perror()\n");
return (0);
}
static void
cleanup(void)
{
unlink(tmpfil);
}
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