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

/* */

DEFINITIONS

1. main

   1 /* Test the recvfrom() 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 (recvfrom, ssize_t,
  23                  (int, void *, size_t, int,
  24                   struct sockaddr *, socklen_t *));
  25 
  26 #include <errno.h>
  27 #include <netinet/in.h>
  28 #include <unistd.h>
  29 
  30 #include "sockets.h"
  31 #include "macros.h"
  32 
  33 int
  34 main (void)
     /*  */
  35 {
  36   (void) gl_sockets_startup (SOCKETS_1_1);
  37 
  38   /* Test behaviour for invalid file descriptors.  */
  39   {
  40     char byte;
  41     struct sockaddr_in addr;
  42     socklen_t addrlen = sizeof (addr);
  43 
  44     errno = 0;
  45     ASSERT (recvfrom (-1, &byte, 1, 0, (struct sockaddr *) &addr, &addrlen)
  46             == -1);
  47     ASSERT (errno == EBADF);
  48   }
  49   {
  50     char byte;
  51     struct sockaddr_in addr;
  52     socklen_t addrlen = sizeof (addr);
  53 
  54     close (99);
  55     errno = 0;
  56     ASSERT (recvfrom (99, &byte, 1, 0, (struct sockaddr *) &addr, &addrlen)
  57             == -1);
  58     ASSERT (errno == EBADF);
  59   }
  60 
  61   return 0;
  62 }

/* */