Mercurial > gnulib
view tests/test-getsockname.c @ 40244:c39a0edd90d7
fts: minor simplification
* lib/fts.c (fts_safe_changedir): Remove redundant assignment.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sun, 17 Mar 2019 12:39:50 -0700 |
parents | b06060465f09 |
children |
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/* Test getsockname() function. Copyright (C) 2011-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> #include <sys/socket.h> #include "signature.h" SIGNATURE_CHECK (getsockname, int, (int, struct sockaddr *, socklen_t *)); #include <stdio.h> #include <string.h> #include <netinet/in.h> #include <arpa/inet.h> #include <unistd.h> #include <errno.h> #include "sockets.h" #include "macros.h" static int open_server_socket (void) { int s, x; struct sockaddr_in ia; s = socket (AF_INET, SOCK_STREAM, 0); x = 1; setsockopt (s, SOL_SOCKET, SO_REUSEPORT, &x, sizeof (x)); memset (&ia, 0, sizeof (ia)); ia.sin_family = AF_INET; inet_pton (AF_INET, "0.0.0.0", &ia.sin_addr); /* Port 0 means that the system should assign a port. */ ia.sin_port = htons (0); if (bind (s, (struct sockaddr *) &ia, sizeof (ia)) < 0) { perror ("bind"); exit (77); } if (listen (s, 1) < 0) { perror ("listen"); exit (77); } return s; } int main (void) { (void) gl_sockets_startup (SOCKETS_1_1); /* Test behaviour for invalid file descriptors. */ { struct sockaddr_in addr; socklen_t addrlen = sizeof (addr); errno = 0; ASSERT (getsockname (-1, (struct sockaddr *) &addr, &addrlen) == -1); ASSERT (errno == EBADF); } { struct sockaddr_in addr; socklen_t addrlen = sizeof (addr); close (99); errno = 0; ASSERT (getsockname (99, (struct sockaddr *) &addr, &addrlen) == -1); ASSERT (errno == EBADF); } /* Test behaviour for a server socket. */ { int s = open_server_socket (); struct sockaddr_in addr; socklen_t addrlen = sizeof (addr); memset (&addr, 0, sizeof (addr)); ASSERT (getsockname (s, (struct sockaddr *) &addr, &addrlen) == 0); ASSERT (addr.sin_family == AF_INET); ASSERT (ntohs (addr.sin_port) != 0); } return 0; }