1 /* Test listen() function. 2 Copyright (C) 2011-2021 Free Software Foundation, Inc. 3 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. 8 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. 13 14 You should have received a copy of the GNU General Public License 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 16 17 #include <config.h> 18 19 #include <sys/socket.h> 20 21 #include "signature.h" 22 SIGNATURE_CHECK (listen, int, (int, int)); 23 24 #include <errno.h> 25 #include <unistd.h> 26 27 #include "sockets.h" 28 #include "macros.h" 29 30 int 31 main (void) /* */ 32 { 33 (void) gl_sockets_startup (SOCKETS_1_1); 34 35 /* Test behaviour for invalid file descriptors. */ 36 { 37 errno = 0; 38 ASSERT (listen (-1, 1) == -1); 39 ASSERT (errno == EBADF); 40 } 41 { 42 close (99); 43 errno = 0; 44 ASSERT (listen (99 ,1) == -1); 45 ASSERT (errno == EBADF); 46 } 47 48 return 0; 49 }