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adbb8027 | 1 | /* Test that values of pathconf and fpathconf are consistent for a file. |
04277e02 | 2 | Copyright (C) 2013-2019 Free Software Foundation, Inc. |
adbb8027 SP |
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 | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <fcntl.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <unistd.h> | |
ceaa9889 | 24 | #include <sys/stat.h> |
adbb8027 SP |
25 | |
26 | ||
27 | static void prepare (void); | |
28 | #define PREPARE(argc, argv) prepare () | |
29 | ||
30 | static int do_test (void); | |
31 | #define TEST_FUNCTION do_test () | |
32 | ||
33 | #include "../test-skeleton.c" | |
34 | ||
35 | static int dir_fd; | |
36 | static char *dirbuf; | |
37 | ||
38 | static void | |
39 | prepare (void) | |
40 | { | |
41 | size_t test_dir_len = strlen (test_dir); | |
42 | static const char dir_name[] = "/tst-pathconf.XXXXXX"; | |
43 | ||
44 | size_t dirbuflen = test_dir_len + sizeof (dir_name); | |
850c6760 | 45 | dirbuf = xmalloc (dirbuflen); |
adbb8027 SP |
46 | |
47 | snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name); | |
48 | if (mkdtemp (dirbuf) == NULL) | |
49 | { | |
50 | printf ("Cannot create temporary directory: %s\n", strerror (errno)); | |
51 | exit (1); | |
52 | } | |
53 | ||
54 | add_temp_file (dirbuf); | |
55 | ||
56 | dir_fd = open (dirbuf, O_RDONLY); | |
57 | if (dir_fd == -1) | |
58 | { | |
59 | printf ("Cannot open directory: %s\n", strerror (errno)); | |
60 | exit (1); | |
61 | } | |
62 | } | |
63 | ||
64 | ||
65 | static int | |
66 | do_test (void) | |
67 | { | |
68 | int ret = 0; | |
69 | static const char *fifo_name = "some-fifo"; | |
70 | ||
71 | size_t filenamelen = strlen (dirbuf) + strlen (fifo_name) + 2; | |
850c6760 | 72 | char *filename = xmalloc (filenamelen); |
adbb8027 SP |
73 | |
74 | snprintf (filename, filenamelen, "%s/%s", dirbuf, fifo_name); | |
75 | ||
76 | /* Create a fifo in the directory. */ | |
77 | int e = mkfifo (filename, 0777); | |
78 | if (e == -1) | |
79 | { | |
80 | printf ("fifo creation failed (%s)\n", strerror (errno)); | |
81 | ret = 1; | |
82 | goto out_nofifo; | |
83 | } | |
84 | ||
85 | long dir_pathconf = pathconf (dirbuf, _PC_PIPE_BUF); | |
86 | ||
87 | if (dir_pathconf < 0) | |
88 | { | |
89 | printf ("pathconf on directory failed: %s\n", strerror (errno)); | |
90 | ret = 1; | |
91 | goto out_nofifo; | |
92 | } | |
93 | ||
94 | long fifo_pathconf = pathconf (filename, _PC_PIPE_BUF); | |
95 | ||
96 | if (fifo_pathconf < 0) | |
97 | { | |
98 | printf ("pathconf on file failed: %s\n", strerror (errno)); | |
99 | ret = 1; | |
100 | goto out_nofifo; | |
101 | } | |
102 | ||
103 | int fifo = open (filename, O_RDONLY | O_NONBLOCK); | |
104 | ||
105 | if (fifo < 0) | |
106 | { | |
107 | printf ("fifo open failed (%s)\n", strerror (errno)); | |
108 | ret = 1; | |
109 | goto out_nofifo; | |
110 | } | |
111 | ||
112 | long dir_fpathconf = fpathconf (dir_fd, _PC_PIPE_BUF); | |
113 | ||
114 | if (dir_fpathconf < 0) | |
115 | { | |
116 | printf ("fpathconf on directory failed: %s\n", strerror (errno)); | |
117 | ret = 1; | |
118 | goto out; | |
119 | } | |
120 | ||
121 | long fifo_fpathconf = fpathconf (fifo, _PC_PIPE_BUF); | |
122 | ||
123 | if (fifo_fpathconf < 0) | |
124 | { | |
125 | printf ("fpathconf on file failed: %s\n", strerror (errno)); | |
126 | ret = 1; | |
127 | goto out; | |
128 | } | |
129 | ||
130 | if (fifo_pathconf != fifo_fpathconf) | |
131 | { | |
132 | printf ("fifo pathconf (%ld) != fifo fpathconf (%ld)\n", fifo_pathconf, | |
133 | fifo_fpathconf); | |
134 | ret = 1; | |
135 | goto out; | |
136 | } | |
137 | ||
138 | if (dir_pathconf != fifo_pathconf) | |
139 | { | |
140 | printf ("directory pathconf (%ld) != fifo pathconf (%ld)\n", | |
141 | dir_pathconf, fifo_pathconf); | |
142 | ret = 1; | |
143 | goto out; | |
144 | } | |
145 | ||
146 | if (dir_fpathconf != fifo_fpathconf) | |
147 | { | |
148 | printf ("directory fpathconf (%ld) != fifo fpathconf (%ld)\n", | |
149 | dir_fpathconf, fifo_fpathconf); | |
150 | ret = 1; | |
151 | goto out; | |
152 | } | |
153 | ||
154 | out: | |
155 | close (fifo); | |
156 | out_nofifo: | |
157 | close (dir_fd); | |
158 | ||
159 | if (unlink (filename) != 0) | |
160 | { | |
161 | printf ("Could not remove fifo (%s)\n", strerror (errno)); | |
162 | ret = 1; | |
163 | } | |
164 | ||
adbb8027 SP |
165 | return ret; |
166 | } |