Warning: That file was not part of the compilation database. It may have many parsing errors.

1/* Copyright (C) 2003-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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 <pthread.h>
21#include <stdbool.h>
22#include <stdio.h>
23#include <stdlib.h>
24#include <unistd.h>
25#include <sys/stat.h>
26
27
28static struct
29{
30 int (*fp) (const char *, mode_t);
31 const char *name;
32 bool is_fd;
33} fcts[] =
34{
35 { creat, "creat", true },
36 { mkdir, "mkdir", false },
37 { mkfifo, "mkfifo", false },
38};
39#define nfcts (sizeof (fcts) / sizeof (fcts[0]))
40
41
42static int
43work (const char *fname, int mask)
44{
45 int result = 0;
46 size_t i;
47 for (i = 0; i < nfcts; ++i)
48 {
49 remove (fname);
50 int fd = fcts[i].fp (fname, 0777);
51 if (fd == -1)
52 {
53 printf ("cannot %s %s: %m\n", fcts[i].name, fname);
54 exit (1);
55 }
56 if (fcts[i].is_fd)
57 close (fd);
58 struct stat64 st;
59 if (stat64 (fname, &st) == -1)
60 {
61 printf ("cannot stat %s after %s: %m\n", fname, fcts[i].name);
62 exit (1);
63 }
64
65 if ((st.st_mode & mask) != 0)
66 {
67 printf ("mask not successful after %s: %x still set\n",
68 fcts[i].name, (unsigned int) (st.st_mode & mask));
69 result = 1;
70 }
71 }
72
73 return result;
74}
75
76
77static pthread_barrier_t bar;
78
79
80static void *
81tf (void *arg)
82{
83 pthread_barrier_wait (&bar);
84
85 int result = work (arg, 022);
86
87 pthread_barrier_wait (&bar);
88
89 pthread_barrier_wait (&bar);
90
91 return (work (arg, 0) | result) ? (void *) -1l : NULL;
92}
93
94
95static int
96do_test (const char *fname)
97{
98 int result = 0;
99
100 umask (0);
101 result |= work (fname, 0);
102
103 pthread_barrier_init (&bar, NULL, 2);
104
105 pthread_t th;
106 if (pthread_create (&th, NULL, tf, (void *) fname) != 0)
107 {
108 puts ("cannot create thread");
109 exit (1);
110 }
111
112 umask (022);
113 result |= work (fname, 022);
114
115 pthread_barrier_wait (&bar);
116
117 pthread_barrier_wait (&bar);
118
119 umask (0);
120
121 pthread_barrier_wait (&bar);
122
123 void *res;
124 if (pthread_join (th, &res) != 0)
125 {
126 puts ("join failed");
127 exit (1);
128 }
129
130 remove (fname);
131
132 return result || res != NULL;
133}
134
135#define TEST_FUNCTION do_test (argc < 2 ? "/tmp/tst-umask.tmp" : argv[1])
136#include "../test-skeleton.c"
137

Warning: That file was not part of the compilation database. It may have many parsing errors.