tests/test-recvfrom.c

   1 /* Test the recvfrom() function.
   2    Copyright (C) 2011-2025 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 #if !defined __sun
  23 SIGNATURE_CHECK (recvfrom, ssize_t,
  24                  (int, void *, size_t, int, struct sockaddr *, socklen_t *));
  25 #endif
  26
  27 #include <errno.h>
  28 #include <netinet/in.h>
  29 #include <unistd.h>
  30
  31 #include "sockets.h"
  32 #include "macros.h"
  33
  34 int
  35 main (void)
  36 {
  37   (void) gl_sockets_startup (SOCKETS_1_1);
  38
  39   /* Test behaviour for invalid file descriptors.  */
  40   {
  41     char byte;
  42     struct sockaddr_in addr;
  43     socklen_t addrlen = sizeof (addr);
  44
  45     errno = 0;
  46     ASSERT (recvfrom (-1, &byte, 1, 0, (struct sockaddr *) &addr, &addrlen)
  47             == -1);
  48     ASSERT (errno == EBADF);
  49   }
  50   {
  51     char byte;
  52     struct sockaddr_in addr;
  53     socklen_t addrlen = sizeof (addr);
  54
  55     close (99);
  56     errno = 0;
  57     ASSERT (recvfrom (99, &byte, 1, 0, (struct sockaddr *) &addr, &addrlen)
  58             == -1);
  59     ASSERT (errno == EBADF);
  60   }
  61
  62   return test_exit_status;
  63 }