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ccf970c7 | 1 | /* Test glob compat symbol which avoid call GLOB_ALTDIRFUNC/gl_lstat. |
04277e02 | 2 | Copyright (C) 2017-2019 Free Software Foundation, Inc. |
ccf970c7 AZ |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
ccf970c7 AZ |
18 | |
19 | #include <glob.h> | |
20 | #include <errno.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <sys/types.h> | |
24 | #include <dirent.h> | |
25 | #include <sys/types.h> | |
26 | #include <sys/stat.h> | |
27 | #include <unistd.h> | |
28 | ||
29 | #include <stdio.h> | |
30 | ||
31 | #include <shlib-compat.h> | |
32 | #include <support/check.h> | |
33 | #include <support/temp_file.h> | |
34 | ||
35 | #if TEST_COMPAT (libc, GLIBC_2_0, GLIBC_2_27) | |
36 | ||
37 | __typeof (glob) glob; | |
f8d79582 AJ |
38 | /* On alpha glob exists in version GLIBC_2_0, GLIBC_2_1, and GLIBC_2_27. |
39 | This test needs to access the version prior to GLIBC_2_27, which is | |
40 | GLIBC_2_1 on alpha, GLIBC_2_0 elsewhere. */ | |
41 | # ifdef __alpha__ | |
42 | compat_symbol_reference (libc, glob, glob, GLIBC_2_1); | |
43 | # else | |
ccf970c7 | 44 | compat_symbol_reference (libc, glob, glob, GLIBC_2_0); |
f8d79582 | 45 | # endif |
ccf970c7 AZ |
46 | |
47 | /* Compat glob should not call gl_lstat since for some old binaries it | |
48 | might be unitialized (for instance GNUmake). Check if it is indeed | |
49 | not called. */ | |
50 | static bool stat_called; | |
51 | static bool lstat_called; | |
52 | ||
53 | static struct | |
54 | { | |
55 | const char *name; | |
56 | int level; | |
57 | int type; | |
58 | } filesystem[] = | |
59 | { | |
60 | { ".", 1, DT_DIR }, | |
61 | { "..", 1, DT_DIR }, | |
62 | { "dir1lev1", 1, DT_UNKNOWN }, | |
63 | { ".", 2, DT_DIR }, | |
64 | { "..", 2, DT_DIR }, | |
65 | { "file1lev2", 2, DT_REG }, | |
66 | { "file2lev2", 2, DT_REG }, | |
67 | }; | |
68 | static const size_t nfiles = sizeof (filesystem) / sizeof (filesystem [0]); | |
69 | ||
70 | typedef struct | |
71 | { | |
72 | int level; | |
73 | int idx; | |
74 | struct dirent d; | |
75 | char room_for_dirent[NAME_MAX]; | |
76 | } my_DIR; | |
77 | ||
78 | static long int | |
79 | find_file (const char *s) | |
80 | { | |
81 | int level = 1; | |
82 | long int idx = 0; | |
83 | ||
84 | while (s[0] == '/') | |
85 | { | |
86 | if (s[1] == '\0') | |
87 | { | |
88 | s = "."; | |
89 | break; | |
90 | } | |
91 | ++s; | |
92 | } | |
93 | ||
94 | if (strcmp (s, ".") == 0) | |
95 | return 0; | |
96 | ||
97 | if (s[0] == '.' && s[1] == '/') | |
98 | s += 2; | |
99 | ||
100 | while (*s != '\0') | |
101 | { | |
102 | char *endp = strchrnul (s, '/'); | |
103 | ||
104 | while (idx < nfiles && filesystem[idx].level >= level) | |
105 | { | |
106 | if (filesystem[idx].level == level | |
107 | && memcmp (s, filesystem[idx].name, endp - s) == 0 | |
108 | && filesystem[idx].name[endp - s] == '\0') | |
109 | break; | |
110 | ++idx; | |
111 | } | |
112 | ||
113 | if (idx == nfiles || filesystem[idx].level < level) | |
114 | { | |
115 | errno = ENOENT; | |
116 | return -1; | |
117 | } | |
118 | ||
119 | if (*endp == '\0') | |
120 | return idx + 1; | |
121 | ||
122 | if (filesystem[idx].type != DT_DIR | |
123 | && (idx + 1 >= nfiles | |
124 | || filesystem[idx].level >= filesystem[idx + 1].level)) | |
125 | { | |
126 | errno = ENOTDIR; | |
127 | return -1; | |
128 | } | |
129 | ||
130 | ++idx; | |
131 | ||
132 | s = endp + 1; | |
133 | ++level; | |
134 | } | |
135 | ||
136 | errno = ENOENT; | |
137 | return -1; | |
138 | } | |
139 | ||
140 | static void * | |
141 | my_opendir (const char *s) | |
142 | { | |
143 | long int idx = find_file (s); | |
144 | if (idx == -1 || filesystem[idx].type != DT_DIR) | |
145 | return NULL; | |
146 | ||
147 | my_DIR *dir = malloc (sizeof (my_DIR)); | |
148 | if (dir == NULL) | |
149 | FAIL_EXIT1 ("cannot allocate directory handle"); | |
150 | ||
151 | dir->level = filesystem[idx].level; | |
152 | dir->idx = idx; | |
153 | ||
154 | return dir; | |
155 | } | |
156 | ||
157 | static struct dirent * | |
158 | my_readdir (void *gdir) | |
159 | { | |
160 | my_DIR *dir = gdir; | |
161 | ||
162 | if (dir->idx == -1) | |
163 | return NULL; | |
164 | ||
165 | while (dir->idx < nfiles && filesystem[dir->idx].level > dir->level) | |
166 | ++dir->idx; | |
167 | ||
168 | if (dir->idx == nfiles || filesystem[dir->idx].level < dir->level) | |
169 | { | |
170 | dir->idx = -1; | |
171 | return NULL; | |
172 | } | |
173 | ||
174 | dir->d.d_ino = 1; /* glob should not skip this entry. */ | |
175 | ||
ccf970c7 | 176 | dir->d.d_type = filesystem[dir->idx].type; |
ccf970c7 AZ |
177 | |
178 | strcpy (dir->d.d_name, filesystem[dir->idx].name); | |
179 | ||
180 | ++dir->idx; | |
181 | ||
182 | return &dir->d; | |
183 | } | |
184 | ||
185 | static void | |
186 | my_closedir (void *dir) | |
187 | { | |
188 | free (dir); | |
189 | } | |
190 | ||
191 | static int | |
192 | my_stat (const char *name, struct stat *st) | |
193 | { | |
194 | stat_called = true; | |
195 | ||
196 | long int idx = find_file (name); | |
197 | if (idx == -1) | |
198 | return -1; | |
199 | ||
200 | memset (st, '\0', sizeof (*st)); | |
201 | ||
202 | if (filesystem[idx].type == DT_UNKNOWN) | |
203 | st->st_mode = DTTOIF (idx + 1 < nfiles | |
204 | && filesystem[idx].level < filesystem[idx + 1].level | |
205 | ? DT_DIR : DT_REG) | 0777; | |
206 | else | |
207 | st->st_mode = DTTOIF (filesystem[idx].type) | 0777; | |
208 | return 0; | |
209 | } | |
210 | ||
211 | static int | |
212 | my_lstat (const char *name, struct stat *st) | |
213 | { | |
214 | lstat_called = true; | |
215 | ||
216 | long int idx = find_file (name); | |
217 | if (idx == -1) | |
218 | return -1; | |
219 | ||
220 | memset (st, '\0', sizeof (*st)); | |
221 | ||
222 | if (filesystem[idx].type == DT_UNKNOWN) | |
223 | st->st_mode = DTTOIF (idx + 1 < nfiles | |
224 | && filesystem[idx].level < filesystem[idx + 1].level | |
225 | ? DT_DIR : DT_REG) | 0777; | |
226 | else | |
227 | st->st_mode = DTTOIF (filesystem[idx].type) | 0777; | |
228 | return 0; | |
229 | } | |
230 | ||
231 | static int | |
232 | do_test (void) | |
233 | { | |
234 | glob_t gl; | |
235 | ||
236 | memset (&gl, '\0', sizeof (gl)); | |
237 | ||
238 | gl.gl_closedir = my_closedir; | |
239 | gl.gl_readdir = my_readdir; | |
240 | gl.gl_opendir = my_opendir; | |
241 | gl.gl_lstat = my_lstat; | |
242 | gl.gl_stat = my_stat; | |
243 | ||
244 | int flags = GLOB_ALTDIRFUNC; | |
245 | ||
246 | stat_called = false; | |
247 | lstat_called = false; | |
248 | ||
249 | TEST_VERIFY_EXIT (glob ("*/file1lev2", flags, NULL, &gl) == 0); | |
250 | TEST_VERIFY_EXIT (gl.gl_pathc == 1); | |
251 | TEST_VERIFY_EXIT (strcmp (gl.gl_pathv[0], "dir1lev1/file1lev2") == 0); | |
252 | ||
253 | TEST_VERIFY_EXIT (stat_called == true); | |
254 | TEST_VERIFY_EXIT (lstat_called == false); | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
259 | #else /* TEST_COMPAT (libc, GLIBC_2_0, GLIBC_2_27) */ | |
260 | ||
261 | static int | |
262 | do_test (void) | |
263 | { | |
264 | return 77; | |
265 | } | |
266 | #endif | |
267 | ||
268 | #include <support/test-driver.c> |