2 Copyright (C) 2009 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Eric Blake <ebb9@byu.net>, 2009. */
23 #include "signature.h"
24 SIGNATURE_CHECK (renameat, int, (int, char const *, int, char const *));
33 #include "filenamecat.h"
36 #define ASSERT(expr) \
41 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
48 #define BASE "test-renameat.t"
50 #include "test-rename.h"
52 static int dfd1 = AT_FDCWD;
53 static int dfd2 = AT_FDCWD;
55 /* Wrapper to test renameat like rename. */
57 do_rename (char const *name1, char const *name2)
59 return renameat (dfd1, name1, dfd2, name2);
70 /* Clean up any trash from prior testsuite runs. */
71 ASSERT (system ("rm -rf " BASE "*") == 0);
73 /* Test basic rename functionality, using current directory. */
74 result = test_rename (do_rename, false);
75 dfd1 = open (".", O_RDONLY);
77 ASSERT (test_rename (do_rename, false) == result);
79 ASSERT (test_rename (do_rename, false) == result);
81 ASSERT (test_rename (do_rename, false) == result);
82 ASSERT (close (dfd2) == 0);
84 /* Create locations to manipulate. */
85 ASSERT (mkdir (BASE "sub1", 0700) == 0);
86 ASSERT (mkdir (BASE "sub2", 0700) == 0);
87 dfd = creat (BASE "00", 0600);
89 ASSERT (close (dfd) == 0);
92 dfd = open (BASE "sub1", O_RDONLY);
94 ASSERT (chdir (BASE "sub2") == 0);
96 /* There are 16 possible scenarios, based on whether an fd is
97 AT_FDCWD or real, and whether a file is absolute or relative.
99 To ensure that we test all of the code paths (rather than
100 triggering early normalization optimizations), we use a loop to
101 repeatedly rename a file in the parent directory, use an fd open
102 on subdirectory 1, all while executing in subdirectory 2; all
103 relative names are thus given with a leading "../". Finally, the
104 last scenario (two relative paths given, neither one AT_FDCWD)
105 has two paths, based on whether the two fds are equivalent, so we
106 do the other variant after the loop. */
107 for (i = 0; i < 16; i++)
109 int fd1 = (i & 8) ? dfd : AT_FDCWD;
110 char *file1 = file_name_concat ((i & 4) ? ".." : cwd, BASE "xx", NULL);
111 int fd2 = (i & 2) ? dfd : AT_FDCWD;
112 char *file2 = file_name_concat ((i & 1) ? ".." : cwd, BASE "xx", NULL);
114 ASSERT (sprintf (strchr (file1, '\0') - 2, "%02d", i) == 2);
115 ASSERT (sprintf (strchr (file2, '\0') - 2, "%02d", i + 1) == 2);
116 ASSERT (renameat (fd1, file1, fd2, file2) == 0);
120 dfd2 = open ("..", O_RDONLY);
122 ASSERT (renameat (dfd, "../" BASE "16", dfd2, BASE "17") == 0);
123 ASSERT (close (dfd2) == 0);
125 /* Now we change back to the parent directory, and set dfd to ".";
126 using dfd in remaining tests will expose any bugs if emulation
127 via /proc/self/fd doesn't check for empty names. */
128 ASSERT (chdir ("..") == 0);
129 ASSERT (close (dfd) == 0);
130 dfd = open (".", O_RDONLY);
133 ASSERT (close (creat (BASE "sub2/file", 0600)) == 0);
135 ASSERT (renameat (dfd, BASE "sub1", dfd, BASE "sub2") == -1);
136 ASSERT (errno == EEXIST || errno == ENOTEMPTY);
137 ASSERT (unlink (BASE "sub2/file") == 0);
139 ASSERT (renameat (dfd, BASE "sub2", dfd, BASE "sub1/.") == -1);
140 ASSERT (errno == EINVAL || errno == EISDIR || errno == EBUSY
141 || errno == ENOTEMPTY);
143 ASSERT (renameat (dfd, BASE "sub2/.", dfd, BASE "sub1") == -1);
144 ASSERT (errno == EINVAL || errno == EBUSY);
146 ASSERT (renameat (dfd, BASE "17", dfd, BASE "sub1") == -1);
147 ASSERT (errno == EISDIR);
149 ASSERT (renameat (dfd, BASE "nosuch", dfd, BASE "18") == -1);
150 ASSERT (errno == ENOENT);
152 ASSERT (renameat (dfd, "", dfd, BASE "17") == -1);
153 ASSERT (errno == ENOENT);
155 ASSERT (renameat (dfd, BASE "17", dfd, "") == -1);
156 ASSERT (errno == ENOENT);
158 ASSERT (renameat (dfd, BASE "sub2", dfd, BASE "17") == -1);
159 ASSERT (errno == ENOTDIR);
161 ASSERT (renameat (dfd, BASE "17/", dfd, BASE "18") == -1);
162 ASSERT (errno == ENOTDIR);
164 ASSERT (renameat (dfd, BASE "17", dfd, BASE "18/") == -1);
165 ASSERT (errno == ENOTDIR || errno == ENOENT);
167 /* Finally, make sure we can overwrite existing files. */
168 ASSERT (close (creat (BASE "sub2/file", 0600)) == 0);
170 ASSERT (renameat (dfd, BASE "sub2", dfd, BASE "sub1") == 0);
171 ASSERT (renameat (dfd, BASE "sub1/file", dfd, BASE "17") == 0);
174 ASSERT (close (dfd) == 0);
176 ASSERT (unlink (BASE "sub1/file") == -1);
177 ASSERT (errno == ENOENT);
178 ASSERT (unlink (BASE "17") == 0);
179 ASSERT (rmdir (BASE "sub1") == 0);
181 ASSERT (rmdir (BASE "sub2") == -1);
182 ASSERT (errno == ENOENT);
186 fputs ("skipping test: symlinks not supported on this file system\n",