1 /* Test of passing file descriptors.
2 Copyright (C) 2011 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include <sys/types.h>
27 #include <sys/socket.h>
45 /* Avoid hanging on failure. */
46 signal (SIGALRM, SIG_DFL);
50 fdnull = open ("/dev/null", O_RDWR);
53 perror ("Could not open /dev/null");
57 ret = socketpair (AF_UNIX, SOCK_STREAM, 0, pair);
60 perror ("socket pair failed");
72 ret = sendfd (pair[1], fdnull);
83 fd = recvfd (pair[0], 0);
89 ret = waitpid (pid, &status, 0);
97 if (!WIFEXITED (status))
99 fprintf (stderr, "Child does not normally exit\n");
102 ret = WEXITSTATUS (status);
105 fprintf (stderr, "Send fd fail\n");
109 /* try to stat new fd */
110 ret = fstat (fd, &st);