/* Copyright (C) 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <fcntl.h> #include <pthread.h> #include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/stat.h> static struct { int (*fp) (const char *, mode_t); const char *name; bool is_fd; } fcts[] = { { creat, "creat", true }, { mkdir, "mkdir", false }, { mkfifo, "mkfifo", false }, }; #define nfcts (sizeof (fcts) / sizeof (fcts[0])) static int work (const char *fname, int mask) { int result = 0; size_t i; for (i = 0; i < nfcts; ++i) { remove (fname); int fd = fcts[i].fp (fname, 0777); if (fd == -1) { printf ("cannot %s %s: %m\n", fcts[i].name, fname); exit (1); } if (fcts[i].is_fd) close (fd); struct stat st; if (stat (fname, &st) == -1) { printf ("cannot stat %s after %s: %m\n", fname, fcts[i].name); exit (1); } if ((st.st_mode & mask) != 0) { printf ("mask not successful after %s: %x still set\n", fcts[i].name, (unsigned int) (st.st_mode & mask)); result = 1; } } return result; } static pthread_barrier_t bar; static void * tf (void *arg) { pthread_barrier_wait (&bar); int result = work (arg, 022); pthread_barrier_wait (&bar); pthread_barrier_wait (&bar); return (work (arg, 0) | result) ? (void *) -1l : NULL; } static int do_test (const char *fname) { int result = 0; umask (0); result |= work (fname, 0); pthread_barrier_init (&bar, NULL, 2); pthread_t th; if (pthread_create (&th, NULL, tf, (void *) fname) != 0) { puts ("cannot create thread"); exit (1); } umask (022); result |= work (fname, 022); pthread_barrier_wait (&bar); pthread_barrier_wait (&bar); umask (0); pthread_barrier_wait (&bar); void *res; if (pthread_join (th, &res) != 0) { puts ("join failed"); exit (1); } remove (fname); return result || res != NULL; } #define TEST_FUNCTION do_test (argc < 2 ? "/tmp/tst-umask.tmp" : argv[1]) #include "../test-skeleton.c"