root/maint/gnulib/tests/test-accept4.c

/* */

DEFINITIONS

1. main

   1 /* Test accepting a connection to a server socket.
   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 (accept4, int, (int, struct sockaddr *, socklen_t *, int));
  23 
  24 #include <errno.h>
  25 #include <fcntl.h>
  26 #include <netinet/in.h>
  27 #include <unistd.h>
  28 
  29 #include "binary-io.h"
  30 #include "sockets.h"
  31 
  32 #include "macros.h"
  33 
  34 #ifndef SOCK_CLOEXEC
  35 # define SOCK_CLOEXEC 0
  36 #endif
  37 
  38 int
  39 main (void)
     /*  */
  40 {
  41   (void) gl_sockets_startup (SOCKETS_1_1);
  42 
  43   /* Test behaviour for invalid file descriptors.  */
  44   {
  45     struct sockaddr_in addr;
  46     socklen_t addrlen = sizeof (addr);
  47 
  48     errno = 0;
  49     ASSERT (accept4 (-1, (struct sockaddr *) &addr, &addrlen,
  50                      SOCK_CLOEXEC)
  51             == -1);
  52     ASSERT (errno == EBADF);
  53   }
  54   {
  55     struct sockaddr_in addr;
  56     socklen_t addrlen = sizeof (addr);
  57 
  58     close (99);
  59     errno = 0;
  60     ASSERT (accept4 (99, (struct sockaddr *) &addr, &addrlen,
  61                      SOCK_CLOEXEC)
  62             == -1);
  63     ASSERT (errno == EBADF);
  64   }
  65 
  66   return 0;
  67 }

/* */