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glibc/stdlib/test-canon2.c
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/* Test for realpath/canonicalize function. | |
Copyright (C) 1998-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <errno.h> | |
#include <string.h> | |
/* Prototype for our test function. */ | |
extern void do_prepare (int argc, char *argv[]); | |
extern int do_test (int argc, char *argv[]); | |
/* We have a preparation function. */ | |
#define PREPARE do_prepare | |
#include <test-skeleton.c> | |
/* Name of the temporary files we create. */ | |
char *name1; | |
char *name2; | |
/* Preparation. */ | |
void | |
do_prepare (int argc, char *argv[]) | |
{ | |
size_t test_dir_len; | |
test_dir_len = strlen (test_dir); | |
/* Generate the circular symlinks. */ | |
name1 = malloc (test_dir_len + sizeof ("/canonXXXXXX")); | |
mempcpy (mempcpy (name1, test_dir, test_dir_len), | |
"/canonXXXXXX", sizeof ("/canonXXXXXX")); | |
name2 = strdup (name1); | |
add_temp_file (mktemp (name1)); | |
add_temp_file (mktemp (name2)); | |
} | |
/* Run the test. */ | |
int | |
do_test (int argc, char *argv[]) | |
{ | |
char *canon; | |
printf ("create symlinks from %s to %s and vice versa\n", name1, name2); | |
if (symlink (name1, name2) == -1 | |
|| symlink (name2, name1) == -1) | |
/* We cannot test this. */ | |
return 0; | |
/* Call the function. This is equivalent the using `realpath' but the | |
function allocates the room for the result. */ | |
errno = 0; | |
canon = canonicalize_file_name (name1); | |
return canon != NULL || errno != ELOOP; | |
} |