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90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/* Tests of areadlinkat_with_size.
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Copyright (C) 2009-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Eric Blake <ebb9@byu.net>, 2009. */
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#include <config.h>
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#include "areadlink.h"
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#include <fcntl.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "ignore-value.h"
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#include "macros.h"
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#define BASE "test-areadlinkat-with-size.t"
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#include "test-areadlink.h"
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static int dfd = AT_FDCWD;
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/* Wrapper for testing areadlinkat_with_size. */
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static char *
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do_areadlinkat_with_size (char const *name, size_t size)
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{
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return areadlinkat_with_size (dfd, name, size);
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}
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int
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main (void)
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{
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int result;
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/* Remove any leftovers from a previous partial run. */
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ignore_value (system ("rm -rf " BASE "*"));
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/* Basic tests. */
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result = test_areadlink (do_areadlinkat_with_size, false);
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dfd = open (".", O_RDONLY);
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ASSERT (0 <= dfd);
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ASSERT (test_areadlink (do_areadlinkat_with_size, false) == result);
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/* Relative tests. */
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if (result == 77)
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fputs ("skipping test: symlinks not supported on this file system\n",
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stderr);
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else
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{
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char *buf;
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ASSERT (symlink ("nowhere", BASE "link") == 0);
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ASSERT (mkdir (BASE "dir", 0700) == 0);
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ASSERT (chdir (BASE "dir") == 0);
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buf = areadlinkat_with_size (dfd, BASE "link", strlen (BASE "link"));
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ASSERT (buf);
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ASSERT (strcmp (buf, "nowhere") == 0);
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free (buf);
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errno = 0;
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ASSERT (areadlinkat_with_size (-1, BASE "link", 1) == NULL);
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ASSERT (errno == EBADF);
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errno = 0;
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ASSERT (areadlinkat_with_size (AT_FDCWD, BASE "link", 1) == NULL);
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ASSERT (errno == ENOENT);
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ASSERT (chdir ("..") == 0);
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ASSERT (rmdir (BASE "dir") == 0);
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ASSERT (unlink (BASE "link") == 0);
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}
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ASSERT (close (dfd) == 0);
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return result;
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}
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