1  /* Test accepting a connection to a server socket.
       2     Copyright (C) 2011-2023 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 (accept, int, (int, struct sockaddr *, socklen_t *));
      23  
      24  #include <errno.h>
      25  #include <netinet/in.h>
      26  #include <unistd.h>
      27  
      28  #include "sockets.h"
      29  #include "macros.h"
      30  
      31  int
      32  main (void)
      33  {
      34    (void) gl_sockets_startup (SOCKETS_1_1);
      35  
      36    /* Test behaviour for invalid file descriptors.  */
      37    {
      38      struct sockaddr_in addr;
      39      socklen_t addrlen = sizeof (addr);
      40  
      41      errno = 0;
      42      ASSERT (accept (-1, (struct sockaddr *) &addr, &addrlen) == -1);
      43      ASSERT (errno == EBADF);
      44    }
      45    {
      46      struct sockaddr_in addr;
      47      socklen_t addrlen = sizeof (addr);
      48  
      49      close (99);
      50      errno = 0;
      51      ASSERT (accept (99, (struct sockaddr *) &addr, &addrlen) == -1);
      52      ASSERT (errno == EBADF);
      53    }
      54  
      55    return 0;
      56  }