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133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
/* Test manipulation of non-blocking flag.
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Copyright (C) 2011-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Written by Eric Blake <ebb9@byu.net>, 2011. */
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#include <config.h>
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#include "nonblocking.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <unistd.h>
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#include "macros.h"
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int
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main (void)
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{
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const char *file = "test-nonblock.tmp";
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int fd_file;
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int fd_pipe[2];
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fd_file = creat (file, 0600);
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/* Assume std descriptors were provided by invoker. */
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ASSERT (STDERR_FILENO < fd_file);
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/* Test regular files; setting nonblocking on file is unspecified. */
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ASSERT (get_nonblocking_flag (fd_file) == 0);
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ASSERT (set_nonblocking_flag (fd_file, false) == 0);
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ASSERT (get_nonblocking_flag (fd_file) == 0);
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ASSERT (close (fd_file) == 0);
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ASSERT (unlink (file) == 0);
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/* Test directories; setting nonblocking is unspecified. */
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fd_file = open (".", O_RDONLY);
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if (STDERR_FILENO < fd_file)
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{
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/* mingw can't open directories unless fchdir module is active. */
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ASSERT (get_nonblocking_flag (fd_file) == 0);
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ASSERT (set_nonblocking_flag (fd_file, false) == 0);
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ASSERT (get_nonblocking_flag (fd_file) == 0);
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ASSERT (close (fd_file) == 0);
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}
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/* Test pipes. */
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ASSERT (pipe (fd_pipe) == 0);
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ASSERT (get_nonblocking_flag (fd_pipe[0]) == 0);
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ASSERT (get_nonblocking_flag (fd_pipe[1]) == 0);
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ASSERT (set_nonblocking_flag (fd_pipe[0], true) == 0);
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ASSERT (get_nonblocking_flag (fd_pipe[0]) == 1);
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ASSERT (get_nonblocking_flag (fd_pipe[1]) == 0);
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ASSERT (set_nonblocking_flag (fd_pipe[1], true) == 0);
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ASSERT (set_nonblocking_flag (fd_pipe[0], false) == 0);
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ASSERT (get_nonblocking_flag (fd_pipe[0]) == 0);
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ASSERT (get_nonblocking_flag (fd_pipe[1]) == 1);
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ASSERT (close (fd_pipe[0]) == 0);
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ASSERT (close (fd_pipe[1]) == 0);
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#if GNULIB_TEST_PIPE2
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ASSERT (pipe2 (fd_pipe, O_NONBLOCK) == 0);
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ASSERT (get_nonblocking_flag (fd_pipe[0]) == 1);
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ASSERT (get_nonblocking_flag (fd_pipe[1]) == 1);
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ASSERT (close (fd_pipe[0]) == 0);
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ASSERT (close (fd_pipe[1]) == 0);
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#endif /* GNULIB_TEST_PIPE2 */
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#if GNULIB_TEST_SOCKET
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{
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/* Test sockets. */
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bool sock_works = true;
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int fd_sock;
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# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
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/* For now, we can't get nonblocking status of windows sockets. */
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sock_works = false;
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# endif
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fd_sock = socket (AF_INET, SOCK_STREAM, 0);
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ASSERT (get_nonblocking_flag (fd_sock) == (sock_works ? 0 : -1));
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ASSERT (set_nonblocking_flag (fd_sock, true) == 0);
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ASSERT (get_nonblocking_flag (fd_sock) == (sock_works ? 1 : -1));
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ASSERT (set_nonblocking_flag (fd_sock, false) == 0);
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ASSERT (get_nonblocking_flag (fd_sock) == (sock_works ? 0 : -1));
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ASSERT (close (fd_sock) == 0);
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# if SOCK_NONBLOCK
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fd_sock = socket (AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
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ASSERT (get_nonblocking_flag (fd_sock) == (sock_works ? 1 : -1));
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ASSERT (close (fd_sock) == 0);
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# endif /* SOCK_NONBLOCK */
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}
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#endif /* GNULIB_TEST_SOCKET */
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/* Test error handling. */
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{
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errno = 0;
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ASSERT (get_nonblocking_flag (-1) == -1);
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ASSERT (errno == EBADF);
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}
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{
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errno = 0;
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ASSERT (set_nonblocking_flag (-1, false) == -1);
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ASSERT (errno == EBADF);
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}
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{
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errno = 0;
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ASSERT (set_nonblocking_flag (-1, true) == -1);
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ASSERT (errno == EBADF);
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}
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{
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errno = 0;
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ASSERT (set_nonblocking_flag (getdtablesize (), false) == -1);
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ASSERT (errno == EBADF);
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}
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return 0;
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}
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