]>
Commit | Line | Data |
---|---|---|
26cec518 UD |
1 | #include <dirent.h> |
2 | #include <fcntl.h> | |
ceaa9889 | 3 | #include <stdbool.h> |
26cec518 UD |
4 | #include <stdio.h> |
5 | #include <stdlib.h> | |
6 | #include <string.h> | |
7 | #include <unistd.h> | |
8 | ||
9 | ||
10 | static void prepare (void); | |
11 | #define PREPARE(argc, argv) prepare () | |
12 | ||
13 | static int do_test (void); | |
14 | #define TEST_FUNCTION do_test () | |
15 | ||
16 | #include "../test-skeleton.c" | |
17 | ||
18 | static int dir_fd; | |
19 | ||
20 | static void | |
21 | prepare (void) | |
22 | { | |
23 | size_t test_dir_len = strlen (test_dir); | |
24 | static const char dir_name[] = "/tst-unlinkat.XXXXXX"; | |
25 | ||
26 | size_t dirbuflen = test_dir_len + sizeof (dir_name); | |
27 | char *dirbuf = malloc (dirbuflen); | |
28 | if (dirbuf == NULL) | |
29 | { | |
30 | puts ("out of memory"); | |
31 | exit (1); | |
32 | } | |
33 | ||
34 | snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name); | |
35 | if (mkdtemp (dirbuf) == NULL) | |
36 | { | |
37 | puts ("cannot create temporary directory"); | |
38 | exit (1); | |
39 | } | |
40 | ||
41 | add_temp_file (dirbuf); | |
42 | ||
43 | dir_fd = open (dirbuf, O_RDONLY | O_DIRECTORY); | |
44 | if (dir_fd == -1) | |
45 | { | |
46 | puts ("cannot open directory"); | |
47 | exit (1); | |
48 | } | |
49 | } | |
50 | ||
51 | ||
52 | static int | |
53 | do_test (void) | |
54 | { | |
55 | /* fdopendir takes over the descriptor, make a copy. */ | |
56 | int dupfd = dup (dir_fd); | |
57 | if (dupfd == -1) | |
58 | { | |
59 | puts ("dup failed"); | |
60 | return 1; | |
61 | } | |
62 | if (lseek (dupfd, 0, SEEK_SET) != 0) | |
63 | { | |
64 | puts ("1st lseek failed"); | |
65 | return 1; | |
66 | } | |
67 | ||
68 | /* The directory should be empty safe the . and .. files. */ | |
69 | DIR *dir = fdopendir (dupfd); | |
70 | if (dir == NULL) | |
71 | { | |
72 | puts ("fdopendir failed"); | |
73 | return 1; | |
74 | } | |
75 | struct dirent64 *d; | |
76 | while ((d = readdir64 (dir)) != NULL) | |
77 | if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) | |
78 | { | |
79 | printf ("temp directory contains file \"%s\"\n", d->d_name); | |
80 | return 1; | |
81 | } | |
82 | closedir (dir); | |
83 | ||
84 | /* Try to create a file. */ | |
85 | int fd = openat (dir_fd, "some-file", O_CREAT|O_RDWR|O_EXCL, 0666); | |
86 | if (fd == -1) | |
87 | { | |
88 | if (errno == ENOSYS) | |
89 | { | |
90 | puts ("*at functions not supported"); | |
91 | return 0; | |
92 | } | |
93 | ||
94 | puts ("file creation failed"); | |
95 | return 1; | |
96 | } | |
97 | write (fd, "hello", 5); | |
98 | close (fd); | |
99 | puts ("file created"); | |
100 | ||
101 | /* fdopendir takes over the descriptor, make a copy. */ | |
102 | dupfd = dup (dir_fd); | |
103 | if (dupfd == -1) | |
104 | { | |
105 | puts ("2nd dup failed"); | |
106 | return 1; | |
107 | } | |
108 | if (lseek (dupfd, 0, SEEK_SET) != 0) | |
109 | { | |
110 | puts ("2nd lseek failed"); | |
111 | return 1; | |
112 | } | |
113 | ||
114 | /* The directory should be empty safe the . and .. files. */ | |
115 | dir = fdopendir (dupfd); | |
116 | if (dir == NULL) | |
117 | { | |
118 | puts ("2nd fdopendir failed"); | |
119 | return 1; | |
120 | } | |
121 | bool seen_file = false; | |
122 | while ((d = readdir64 (dir)) != NULL) | |
123 | if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) | |
124 | { | |
125 | if (strcmp (d->d_name, "some-file") != 0) | |
126 | { | |
127 | printf ("temp directory contains file \"%s\"\n", d->d_name); | |
128 | return 1; | |
129 | } | |
130 | ||
131 | seen_file = true; | |
132 | } | |
133 | closedir (dir); | |
134 | ||
135 | if (!seen_file) | |
136 | { | |
137 | puts ("file not created in correct directory"); | |
138 | return 1; | |
139 | } | |
140 | ||
141 | /* Remove the file now. */ | |
142 | if (unlinkat (dir_fd, "some-file", 0) != 0) | |
143 | { | |
144 | puts ("unlinkat failed"); | |
145 | return 1; | |
146 | } | |
147 | ||
148 | /* We won't need dir_fd anymore after this, so use it. */ | |
149 | if (lseek (dir_fd, 0, SEEK_SET) != 0) | |
150 | { | |
151 | puts ("3rd lseek failed"); | |
152 | return 1; | |
153 | } | |
154 | ||
155 | /* The directory should be empty safe the . and .. files. */ | |
156 | dir = fdopendir (dir_fd); | |
157 | if (dir == NULL) | |
158 | { | |
159 | puts ("3rd fdopendir failed"); | |
160 | return 1; | |
161 | } | |
162 | while ((d = readdir64 (dir)) != NULL) | |
163 | if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) | |
164 | { | |
165 | if (strcmp (d->d_name, "some-file") == 0) | |
166 | { | |
167 | puts ("some-file not removed"); | |
168 | return 1; | |
169 | } | |
170 | else | |
171 | { | |
172 | printf ("temp directory contains file \"%s\"\n", d->d_name); | |
173 | return 1; | |
174 | } | |
175 | } | |
176 | closedir (dir); | |
177 | ||
178 | return 0; | |
179 | } |