minix/tests/lib/libc/gen/t_realpath.c

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/* $NetBSD: t_realpath.c,v 1.2 2012/03/27 07:54:58 njoly Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jukka Ruohonen.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: t_realpath.c,v 1.2 2012/03/27 07:54:58 njoly Exp $");
#include <sys/param.h>
#include <atf-c.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static const struct {
const char *path;
const char *result;
} paths[] = {
{ "/", "/" },
{ "///////", "/" },
{ "", NULL },
{ " ", NULL },
{ "/ ", NULL },
{ " /", NULL },
{ "/etc///", "/etc" },
{ "///////etc", "/etc" },
{ "/a/b/c/d/e", NULL },
{ " /usr/bin ", NULL },
{ "\\//////usr//bin", NULL },
{ "//usr//bin//", "/usr/bin" },
{ "//////usr//bin//", "/usr/bin" },
{ "/usr/bin//////////", "/usr/bin" },
};
ATF_TC(realpath_basic);
ATF_TC_HEAD(realpath_basic, tc)
{
atf_tc_set_md_var(tc, "descr", "A basic test of realpath(3)");
}
ATF_TC_BODY(realpath_basic, tc)
{
char buf[MAXPATHLEN];
char *ptr;
size_t i;
for (i = 0; i < __arraycount(paths); i++) {
(void)memset(buf, '\0', sizeof(buf));
ptr = realpath(paths[i].path, buf);
if (ptr == NULL && paths[i].result == NULL)
continue;
if (ptr == NULL && paths[i].result != NULL)
atf_tc_fail("realpath failed for '%s'", paths[i].path);
if (strcmp(paths[i].result, buf) != 0)
atf_tc_fail("expected '%s', got '%s'",
paths[i].result, buf);
}
}
ATF_TC(realpath_huge);
ATF_TC_HEAD(realpath_huge, tc)
{
atf_tc_set_md_var(tc, "descr", "Test huge path with realpath(3)");
}
ATF_TC_BODY(realpath_huge, tc)
{
char result[MAXPATHLEN] = { 0 };
char buffer[MAXPATHLEN] = { 0 };
(void)memset(buffer, '/', sizeof(buffer) - 1);
ATF_CHECK(realpath(buffer, result) != NULL);
ATF_CHECK(strlen(result) == 1);
ATF_CHECK(result[0] == '/');
}
ATF_TC(realpath_symlink);
ATF_TC_HEAD(realpath_symlink, tc)
{
atf_tc_set_md_var(tc, "descr", "Test symbolic link with realpath(3)");
}
ATF_TC_BODY(realpath_symlink, tc)
{
char path[MAXPATHLEN] = { 0 };
char slnk[MAXPATHLEN] = { 0 };
char resb[MAXPATHLEN] = { 0 };
int fd;
(void)getcwd(path, sizeof(path));
(void)getcwd(slnk, sizeof(slnk));
(void)strlcat(path, "/realpath", sizeof(path));
(void)strlcat(slnk, "/symbolic", sizeof(slnk));
fd = open(path, O_RDONLY | O_CREAT, 0600);
ATF_REQUIRE(fd >= 0);
ATF_REQUIRE(symlink(path, slnk) == 0);
ATF_REQUIRE(close(fd) == 0);
ATF_REQUIRE(realpath(slnk, resb) != NULL);
ATF_REQUIRE(strcmp(resb, path) == 0);
ATF_REQUIRE(unlink(path) == 0);
ATF_REQUIRE(unlink(slnk) == 0);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, realpath_basic);
ATF_TP_ADD_TC(tp, realpath_huge);
ATF_TP_ADD_TC(tp, realpath_symlink);
return atf_no_error();
}