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/* -*- C -*-
Copyright (C) 2010-2012, 2015, 2017, 2022 Rocky Bernstein
<rocky@gnu.org>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
Unit test for lib/driver/realpath.c
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#define __CDIO_CONFIG_H__ 1
#endif
#ifdef HAVE_STDIO_H
#include <stdio.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
#include <windows.h>
#include <direct.h> /* _mkdir */
/* MinGW, MSVC do not have symlink */
#define symlink(oldpath, newpath) CopyFileA(oldpath, newpath, FALSE)
#else
#define _mkdir(a) mkdir(a, S_IRWXU)
#endif
#include <cdio/util.h>
#ifdef MINGW32
#define MY_DIR_SEPARATOR '\\'
#else
#define MY_DIR_SEPARATOR '/'
#endif
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
static char *
get_temporary_name(const char *dirname, const char *errmsg)
{
char *new_filename = tempnam(NULL, "syml");
if (NULL == new_filename) {
printf("Could not generate %s name\n", errmsg);
}
return new_filename;
}
static int check_rc(int rc, const char *psz_operation,
const char *psz_filename)
{
if (-1 == rc) {
printf("%s %s failed with error: %s\n",
psz_operation, psz_filename, strerror(errno));
} else if (0 != rc) {
printf("%s %s gives weird return %d\n",
psz_operation, psz_filename, rc);
}
return rc;
}
int
main(int argc, const char *argv[])
{
char *psz_tmp_subdir;
char *psz_orig_file;
char tmp_dir[PATH_MAX+1] = {0};
char tmp_subdir[PATH_MAX+1] = {0};
char psz_file_check[PATH_MAX+1];
char *psz_last_slash;
int i_last_slash;
char *psz_symlink_file = NULL;
int rc = 0;
psz_tmp_subdir = get_temporary_name(NULL, "temporary directory");
if (NULL == psz_tmp_subdir) {
rc = 77;
goto err_exit1;
}
if (-1 == check_rc(_mkdir(psz_tmp_subdir),
"mkdir", psz_tmp_subdir)) {
rc = 77;
goto err_exit1;
}
cdio_realpath(psz_tmp_subdir, tmp_subdir);
if (0 == strlen(tmp_subdir)) {
fprintf(stderr, "cdio_realpath on temp directory %s failed\n",
psz_tmp_subdir);
rc = 1;
goto err_exit1;
}
psz_last_slash = strrchr(tmp_subdir, MY_DIR_SEPARATOR);
if (psz_last_slash == NULL) {
printf("Can't find %c in %s\n", MY_DIR_SEPARATOR, tmp_subdir);
rc = 2;
goto err_exit1;
}
i_last_slash = psz_last_slash - tmp_subdir + 1;
memcpy(tmp_dir, tmp_subdir, i_last_slash);
tmp_dir[i_last_slash] = '\0';
printf("-- Temp directory is %s\n", tmp_dir);
psz_orig_file = get_temporary_name(NULL, "file");
if (NULL != psz_orig_file) {
FILE *fp = fopen(psz_orig_file, "w");
char orig_file[PATH_MAX+1] = {0};
char symlink_file[PATH_MAX+1] = {0};
fprintf(fp, "testing\n");
fclose(fp);
cdio_realpath(psz_orig_file, orig_file);
if (0 == strlen(orig_file)) {
fprintf(stderr, "cdio_realpath on temp file %s failed\n",
psz_orig_file);
rc = 3;
goto err_exit;
}
psz_symlink_file = get_temporary_name(NULL, "symlink file");
rc = check_rc(symlink(psz_orig_file, psz_symlink_file),
"symlink", psz_symlink_file);
if (0 == rc) {
/* Just when you thought we'd forgotten, here is our first
test! */
cdio_realpath(psz_symlink_file, psz_file_check);
if (0 != strncmp(psz_file_check, orig_file, PATH_MAX)) {
fprintf(stderr, "simple cdio_realpath failed: %s vs %s\n",
psz_file_check, orig_file);
rc = 4;
goto err_exit;
}
check_rc(unlink(psz_symlink_file), "unlink", psz_symlink_file);
}
/* Make sure we handle a cyclic symbolic name, e.g. xx -> xx */
cdio_realpath(psz_symlink_file, symlink_file);
rc = check_rc(symlink(psz_symlink_file, psz_symlink_file),
"symlink", psz_symlink_file);
if (0 == rc) {
char *retvalue = cdio_realpath(psz_symlink_file, psz_file_check);
if (0 != retvalue) {
if (0 != strncmp(psz_file_check, symlink_file, PATH_MAX)) {
fprintf(stderr, "direct cdio_realpath cycle test failed. %s vs %s\n",
psz_file_check, symlink_file);
rc = 5;
goto err_exit;
}
check_rc(unlink(psz_symlink_file), "unlink", psz_symlink_file);
}
}
}
check_rc(unlink(psz_orig_file), "unlink", psz_orig_file);
check_rc(rmdir(psz_tmp_subdir), "rmdir", psz_tmp_subdir);
free(psz_symlink_file);
err_exit:
free(psz_orig_file);
err_exit1:
free(psz_tmp_subdir);
return rc;
}
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