1 | #include <dirent.h> |
2 | #include <fcntl.h> |
3 | #include <stdbool.h> |
4 | #include <stdio.h> |
5 | #include <stdlib.h> |
6 | #include <string.h> |
7 | #include <unistd.h> |
8 | #include <sys/stat.h> |
9 | |
10 | |
11 | static void prepare (void); |
12 | #define PREPARE(argc, argv) prepare () |
13 | |
14 | static int do_test (void); |
15 | #define TEST_FUNCTION do_test () |
16 | |
17 | #include "../test-skeleton.c" |
18 | |
19 | static int dir_fd; |
20 | |
21 | static void |
22 | prepare (void) |
23 | { |
24 | size_t test_dir_len = strlen (test_dir); |
25 | static const char dir_name[] = "/tst-mkfifoat.XXXXXX" ; |
26 | |
27 | size_t dirbuflen = test_dir_len + sizeof (dir_name); |
28 | char *dirbuf = malloc (size: dirbuflen); |
29 | if (dirbuf == NULL) |
30 | { |
31 | puts (s: "out of memory" ); |
32 | exit (1); |
33 | } |
34 | |
35 | snprintf (s: dirbuf, maxlen: dirbuflen, format: "%s%s" , test_dir, dir_name); |
36 | if (mkdtemp (template: dirbuf) == NULL) |
37 | { |
38 | puts (s: "cannot create temporary directory" ); |
39 | exit (1); |
40 | } |
41 | |
42 | add_temp_file (name: dirbuf); |
43 | |
44 | dir_fd = open (file: dirbuf, O_RDONLY | O_DIRECTORY); |
45 | if (dir_fd == -1) |
46 | { |
47 | puts (s: "cannot open directory" ); |
48 | exit (1); |
49 | } |
50 | } |
51 | |
52 | |
53 | static int |
54 | do_test (void) |
55 | { |
56 | /* fdopendir takes over the descriptor, make a copy. */ |
57 | int dupfd = dup (fd: dir_fd); |
58 | if (dupfd == -1) |
59 | { |
60 | puts (s: "dup failed" ); |
61 | return 1; |
62 | } |
63 | if (lseek (fd: dupfd, offset: 0, SEEK_SET) != 0) |
64 | { |
65 | puts (s: "1st lseek failed" ); |
66 | return 1; |
67 | } |
68 | |
69 | /* The directory should be empty safe the . and .. files. */ |
70 | DIR *dir = fdopendir (fd: dupfd); |
71 | if (dir == NULL) |
72 | { |
73 | puts (s: "fdopendir failed" ); |
74 | return 1; |
75 | } |
76 | struct dirent64 *d; |
77 | while ((d = readdir64 (dirp: dir)) != NULL) |
78 | if (strcmp (d->d_name, "." ) != 0 && strcmp (d->d_name, ".." ) != 0) |
79 | { |
80 | printf (format: "temp directory contains file \"%s\"\n" , d->d_name); |
81 | return 1; |
82 | } |
83 | closedir (dirp: dir); |
84 | |
85 | /* Create a new directory. */ |
86 | int e = mkfifoat (fd: dir_fd, path: "some-fifo" , mode: 0777); |
87 | if (e == -1) |
88 | { |
89 | if (errno == ENOSYS) |
90 | { |
91 | puts (s: "*at functions not supported" ); |
92 | return 0; |
93 | } |
94 | |
95 | puts (s: "fifo creation failed" ); |
96 | return 1; |
97 | } |
98 | |
99 | struct stat64 st1; |
100 | if (fstatat64 (fd: dir_fd, file: "some-fifo" , buf: &st1, flag: 0) != 0) |
101 | { |
102 | puts (s: "fstat64 failed" ); |
103 | return 1; |
104 | } |
105 | if (!S_ISFIFO (st1.st_mode)) |
106 | { |
107 | puts (s: "mkfifoat did not create FIFO" ); |
108 | return 1; |
109 | } |
110 | |
111 | dupfd = dup (fd: dir_fd); |
112 | if (dupfd == -1) |
113 | { |
114 | puts (s: "dup failed" ); |
115 | return 1; |
116 | } |
117 | if (lseek (fd: dupfd, offset: 0, SEEK_SET) != 0) |
118 | { |
119 | puts (s: "1st lseek failed" ); |
120 | return 1; |
121 | } |
122 | |
123 | dir = fdopendir (fd: dupfd); |
124 | if (dir == NULL) |
125 | { |
126 | puts (s: "2nd fdopendir failed" ); |
127 | return 1; |
128 | } |
129 | bool has_some_fifo = false; |
130 | while ((d = readdir64 (dirp: dir)) != NULL) |
131 | if (strcmp (d->d_name, "some-fifo" ) == 0) |
132 | { |
133 | has_some_fifo = true; |
134 | if (d->d_type != DT_UNKNOWN && d->d_type != DT_FIFO) |
135 | { |
136 | puts (s: "d_type for some-fifo wrong" ); |
137 | return 1; |
138 | } |
139 | } |
140 | else if (strcmp (d->d_name, "." ) != 0 && strcmp (d->d_name, ".." ) != 0) |
141 | { |
142 | printf (format: "temp directory contains file \"%s\"\n" , d->d_name); |
143 | return 1; |
144 | } |
145 | closedir (dirp: dir); |
146 | |
147 | if (!has_some_fifo) |
148 | { |
149 | puts (s: "some-fifo not in directory list" ); |
150 | return 1; |
151 | } |
152 | |
153 | if (unlinkat (fd: dir_fd, name: "some-fifo" , flag: 0) != 0) |
154 | { |
155 | puts (s: "unlinkat failed" ); |
156 | return 1; |
157 | } |
158 | |
159 | close (fd: dir_fd); |
160 | |
161 | return 0; |
162 | } |
163 | |