kc3-lang/gnulib/tests/test-getsockname.c

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• Hash : 32a72f45
  Author :
  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• tests/test-getsockname.c

• /* Test getsockname() function.
     Copyright (C) 2011-2023 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include <sys/socket.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (getsockname, int, (int, struct sockaddr *, socklen_t *));
  
  #include <stdio.h>
  #include <string.h>
  #include <netinet/in.h>
  #include <arpa/inet.h>
  #include <unistd.h>
  #include <errno.h>
  
  #include "sockets.h"
  #include "macros.h"
  
  static int
  open_server_socket (void)
  {
    int s, x;
    struct sockaddr_in ia;
  
    s = socket (AF_INET, SOCK_STREAM, 0);
  
    x = 1;
    setsockopt (s, SOL_SOCKET, SO_REUSEPORT, &x, sizeof (x));
  
    memset (&ia, 0, sizeof (ia));
    ia.sin_family = AF_INET;
    inet_pton (AF_INET, "0.0.0.0", &ia.sin_addr);
    /* Port 0 means that the system should assign a port.  */
    ia.sin_port = htons (0);
    if (bind (s, (struct sockaddr *) &ia, sizeof (ia)) < 0)
      {
        perror ("bind");
        exit (77);
      }
  
    if (listen (s, 1) < 0)
      {
        perror ("listen");
        exit (77);
      }
  
    return s;
  }
  
  int
  main (void)
  {
    (void) gl_sockets_startup (SOCKETS_1_1);
  
    /* Test behaviour for invalid file descriptors.  */
    {
      struct sockaddr_in addr;
      socklen_t addrlen = sizeof (addr);
  
      errno = 0;
      ASSERT (getsockname (-1, (struct sockaddr *) &addr, &addrlen) == -1);
      ASSERT (errno == EBADF);
    }
    {
      struct sockaddr_in addr;
      socklen_t addrlen = sizeof (addr);
  
      close (99);
      errno = 0;
      ASSERT (getsockname (99, (struct sockaddr *) &addr, &addrlen) == -1);
      ASSERT (errno == EBADF);
    }
  
    /* Test behaviour for a server socket.  */
    {
      int s = open_server_socket ();
      struct sockaddr_in addr;
      socklen_t addrlen = sizeof (addr);
  
      memset (&addr, 0, sizeof (addr));
      ASSERT (getsockname (s, (struct sockaddr *) &addr, &addrlen) == 0);
      ASSERT (addr.sin_family == AF_INET);
      ASSERT (ntohs (addr.sin_port) != 0);
    }
  
    return 0;
  }
  

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