1 /* Test program for returning the canonical absolute name of a given file.
2 Copyright (C) 1996-2017 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by David Mosberger <davidm@azstarnet.com>.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 /* This file must be run from within a directory called "stdlib". */
28 #include <sys/param.h>
31 /* Prototype for our test function. */
32 extern int do_test (int argc
, char *argv
[]);
33 #include <test-skeleton.c>
36 # define PATH_MAX 4096
38 static char cwd
[PATH_MAX
];
39 static size_t cwd_len
;
45 {"SYMLINK_LOOP", "SYMLINK_LOOP"},
47 {"SYMLINK_2", "//////./../../etc"},
48 {"SYMLINK_3", "SYMLINK_1"},
49 {"SYMLINK_4", "SYMLINK_2"},
50 {"SYMLINK_5", "doesNotExist"},
54 const char * in
, * out
, * resolved
;
59 {"/////////////////////////////////", "/"},
60 {"/.././.././.././..///", "/"},
62 {"/etc/../etc", "/etc"},
64 {"/doesNotExist/../etc", 0, "/doesNotExist", ENOENT
},
65 {"./././././././././.", "."},
66 {"/etc/.//doesNotExist", 0, "/etc/doesNotExist", ENOENT
},
67 {"./doesExist", "./doesExist"},
68 {"./doesExist/", "./doesExist"},
70 {"./doesExist/../doesExist", "./doesExist"},
71 {"foobar", 0, "./foobar", ENOENT
},
73 {"./foobar", 0, "./foobar", ENOENT
},
74 {"SYMLINK_LOOP", 0, "./SYMLINK_LOOP", ELOOP
},
76 {"./SYMLINK_LOOP", 0, "./SYMLINK_LOOP", ELOOP
},
78 {"SYMLINK_1/foobar", 0, "./foobar", ENOENT
},
79 {"SYMLINK_2", "/etc"},
82 {"SYMLINK_4", "/etc"},
83 {"../stdlib/SYMLINK_1", "."},
84 {"../stdlib/SYMLINK_2", "/etc"},
85 {"../stdlib/SYMLINK_3", "."},
86 {"../stdlib/SYMLINK_4", "/etc"},
88 {"./SYMLINK_5", 0, "./doesNotExist", ENOENT
},
89 {"SYMLINK_5", 0, "./doesNotExist", ENOENT
},
90 {"SYMLINK_5/foobar", 0, "./doesNotExist", ENOENT
},
91 {"doesExist/../../stdlib/doesExist", "./doesExist"},
92 {"doesExist/.././../stdlib/.", "."},
94 {"./doesExist/someFile/", 0, "./doesExist/someFile", ENOTDIR
},
95 {"./doesExist/someFile/..", 0, "./doesExist/someFile", ENOTDIR
},
100 check_path (const char * result
, const char * expected
)
105 return (expected
== NULL
);
110 if (expected
[0] == '.' && (expected
[1] == '/' || expected
[1] == '\0'))
111 good
= (strncmp (result
, cwd
, cwd_len
) == 0
112 && strcmp (result
+ cwd_len
, expected
+ 1) == 0);
114 good
= (strcmp (expected
, result
) == 0);
121 do_test (int argc
, char ** argv
)
127 getcwd (cwd
, sizeof(buf
));
128 cwd_len
= strlen (cwd
);
131 if (realpath (NULL
, buf
) != NULL
|| errno
!= EINVAL
)
133 printf ("%s: expected return value NULL and errno set to EINVAL"
134 " for realpath(NULL,...)\n", argv
[0]);
139 /* This is now allowed. The test is invalid. */
141 if (realpath ("/", NULL
) != NULL
|| errno
!= EINVAL
)
143 printf ("%s: expected return value NULL and errno set to EINVAL"
144 " for realpath(...,NULL)\n", argv
[0]);
150 if (realpath ("", buf
) != NULL
|| errno
!= ENOENT
)
152 printf ("%s: expected return value NULL and set errno to ENOENT"
153 " for realpath(\"\",...)\n", argv
[0]);
157 for (i
= 0; i
< (int) (sizeof (symlinks
) / sizeof (symlinks
[0])); ++i
)
158 symlink (symlinks
[i
].value
, symlinks
[i
].name
);
160 int has_dir
= mkdir ("doesExist", 0777) == 0;
162 int fd
= has_dir
? creat ("doesExist/someFile", 0777) : -1;
164 for (i
= 0; i
< (int) (sizeof (tests
) / sizeof (tests
[0])); ++i
)
167 result
= realpath (tests
[i
].in
, buf
);
169 if (!check_path (result
, tests
[i
].out
))
171 printf ("%s: flunked test %d (expected `%s', got `%s')\n",
172 argv
[0], i
, tests
[i
].out
? tests
[i
].out
: "NULL",
173 result
? result
: "NULL");
178 if (!check_path (buf
, tests
[i
].out
? tests
[i
].out
: tests
[i
].resolved
))
180 printf ("%s: flunked test %d (expected resolved `%s', got `%s')\n",
181 argv
[0], i
, tests
[i
].out
? tests
[i
].out
: tests
[i
].resolved
,
187 if (!tests
[i
].out
&& errno
!= tests
[i
].error
)
189 printf ("%s: flunked test %d (expected errno %d, got %d)\n",
190 argv
[0], i
, tests
[i
].error
, errno
);
195 char *result2
= realpath (tests
[i
].in
, NULL
);
196 if ((result2
== NULL
&& result
!= NULL
)
197 || (result2
!= NULL
&& strcmp (result
, result2
) != 0))
200 %s: realpath(..., NULL) produced different result than realpath(..., buf): '%s' vs '%s'\n",
201 argv
[0], result2
, result
);
207 getcwd (buf
, sizeof(buf
));
208 if (strcmp (buf
, cwd
))
210 printf ("%s: current working directory changed from %s to %s\n",
218 unlink ("doesExist/someFile");
224 for (i
= 0; i
< (int) (sizeof (symlinks
) / sizeof (symlinks
[0])); ++i
)
225 unlink (symlinks
[i
].name
);
229 printf ("%d errors.\n", errors
);