1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/* -*- C -*-
Copyright (C) 2010, 2011 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/gnu_linux.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
#include <cdio/util.h>
#define MY_DIR_SEPARATOR '/'
#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;
unsigned int i_last_slash;
char *psz_symlink_file = NULL;
psz_tmp_subdir = get_temporary_name(NULL, "temporary directory");
if (NULL == psz_tmp_subdir) {
exit(77);
}
if (NULL == psz_tmp_subdir) {
printf("extract parent directory from temporary directory name\n");
exit(77);
}
if (-1 == check_rc(mkdir(psz_tmp_subdir, 0755),
"mkdir", psz_tmp_subdir))
exit(77);
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);
exit(1);
}
psz_last_slash = strrchr(tmp_subdir, MY_DIR_SEPARATOR);
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};
int rc;
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);
exit(2);
}
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);
exit(3);
}
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) {
cdio_realpath(psz_symlink_file, psz_file_check);
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);
exit(4);
}
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);
return 0;
}
|
