diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_link.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_link.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/sys/t_link.c b/contrib/netbsd-tests/lib/libc/sys/t_link.c new file mode 100644 index 0000000..b8dcacc --- /dev/null +++ b/contrib/netbsd-tests/lib/libc/sys/t_link.c @@ -0,0 +1,233 @@ +/* $NetBSD: t_link.c,v 1.2 2014/04/21 14:39:36 martin Exp $ */ + +/*- + * Copyright (c) 2011 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_link.c,v 1.2 2014/04/21 14:39:36 martin Exp $"); + +#include <sys/param.h> +#include <sys/stat.h> + +#include <atf-c.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +#ifdef __FreeBSD__ +#include <limits.h> +#endif + +static const char *getpath(void); +static char path[] = "link"; +static const char *pathl; + +static const char * +getpath(void) +{ + static char buf[LINE_MAX]; + + (void)memset(buf, '\0', sizeof(buf)); + + if (getcwd(buf, sizeof(buf)) == NULL) + return NULL; + + (void)strlcat(buf, path, sizeof(buf)); + (void)strlcat(buf, ".link", sizeof(buf)); + + return buf; +} + +ATF_TC_WITH_CLEANUP(link_count); +ATF_TC_HEAD(link_count, tc) +{ + atf_tc_set_md_var(tc, "descr", "link(2) counts are incremented?"); +} + +ATF_TC_BODY(link_count, tc) +{ + struct stat sa, sb; + int fd; + + (void)memset(&sa, 0, sizeof(struct stat)); + (void)memset(&sb, 0, sizeof(struct stat)); + + pathl = getpath(); + fd = open(path, O_RDWR | O_CREAT, 0600); + + ATF_REQUIRE(fd >= 0); + ATF_REQUIRE(pathl != NULL); + + ATF_REQUIRE(stat(path, &sa) == 0); + ATF_REQUIRE(link(path, pathl) == 0); + ATF_REQUIRE(stat(path, &sb) == 0); + + if (sa.st_nlink != sb.st_nlink - 1) + atf_tc_fail("incorrect link(2) count"); + + ATF_REQUIRE(close(fd) == 0); + ATF_REQUIRE(unlink(path) == 0); + ATF_REQUIRE(unlink(pathl) == 0); +} + +ATF_TC_CLEANUP(link_count, tc) +{ + (void)unlink(path); + (void)unlink(pathl); +} + +ATF_TC_WITH_CLEANUP(link_err); +ATF_TC_HEAD(link_err, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test error conditions of link(2)"); +} + +ATF_TC_BODY(link_err, tc) +{ + char buf[MAXPATHLEN + 1]; + int fd; + + (void)memset(buf, 'x', sizeof(buf)); + + pathl = getpath(); + fd = open(path, O_RDWR | O_CREAT, 0600); + + ATF_REQUIRE(fd >= 0); + ATF_REQUIRE(pathl != NULL); + + errno = 0; + ATF_REQUIRE(link(path, pathl) == 0); + ATF_REQUIRE_ERRNO(EEXIST, link(path, pathl) == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(ENAMETOOLONG, link(buf, "xxx") == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(ENOENT, link(path, "/d/c/b/a") == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(ENOENT, link("/a/b/c/d", path) == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(ENOENT, link("/a/b/c/d", "/d/c/b/a") == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(EFAULT, link(path, (const char *)-1) == -1); + + errno = 0; + ATF_REQUIRE_ERRNO(EFAULT, link((const char *)-1, "xxx") == -1); + + ATF_REQUIRE(close(fd) == 0); + ATF_REQUIRE(unlink(path) == 0); + ATF_REQUIRE(unlink(pathl) == 0); +} + +ATF_TC_CLEANUP(link_err, tc) +{ + (void)unlink(path); + (void)unlink(pathl); +} + +ATF_TC(link_perm); +ATF_TC_HEAD(link_perm, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test permissions with link(2)"); + atf_tc_set_md_var(tc, "require.user", "unprivileged"); +} + +ATF_TC_BODY(link_perm, tc) +{ + int rv; + + errno = 0; + rv = link("/root", "/root.link"); + ATF_REQUIRE_MSG(rv == -1 && (errno == EACCES || errno == EPERM), + "link to a directory did not fail with EPERM or EACCESS; link() " + "returned %d, errno %d", rv, errno); + + errno = 0; + ATF_REQUIRE_ERRNO(EACCES, + link("/root/.profile", "/root/.profile.link") == -1); +} + +ATF_TC_WITH_CLEANUP(link_stat); +ATF_TC_HEAD(link_stat, tc) +{ + atf_tc_set_md_var(tc, "descr", "Check stat(2) of a linked file"); +} + +ATF_TC_BODY(link_stat, tc) +{ + struct stat sa, sb; + int fd; + + (void)memset(&sa, 0, sizeof(struct stat)); + (void)memset(&sb, 0, sizeof(struct stat)); + + pathl = getpath(); + fd = open(path, O_RDWR | O_CREAT, 0600); + + ATF_REQUIRE(fd >= 0); + ATF_REQUIRE(pathl != NULL); + + ATF_REQUIRE(link(path, pathl) == 0); + ATF_REQUIRE(stat(path, &sa) == 0); + ATF_REQUIRE(lstat(pathl, &sb) == 0); + + if (sa.st_uid != sb.st_uid) + atf_tc_fail("unequal UIDs"); + + if (sa.st_mode != sb.st_mode) + atf_tc_fail("unequal modes"); + + if (sa.st_ino != sb.st_ino) + atf_tc_fail("unequal inodes"); + + ATF_REQUIRE(close(fd) == 0); + ATF_REQUIRE(unlink(path) == 0); + ATF_REQUIRE(unlink(pathl) == 0); +} + +ATF_TC_CLEANUP(link_stat, tc) +{ + (void)unlink(path); + (void)unlink(pathl); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, link_count); + ATF_TP_ADD_TC(tp, link_err); + ATF_TP_ADD_TC(tp, link_perm); + ATF_TP_ADD_TC(tp, link_stat); + + return atf_no_error(); +} |
