none/tests/socket_close.c

   1 #define _GNU_SOURCE
   2 #include <unistd.h>
   3 #include <stdio.h>
   4 #include <sys/socket.h>
   5 #include <stdlib.h>
   6 #include <string.h>
   7 #include <sys/un.h>
   8
   9 const char *SPATH = "/tmp/vgtest-foofrob";
  10 int socket_fd;
  11
  12 void open_socket()
  13 {
  14   unlink (SPATH); /* Make sure socket path doesn't exist yet.  */
  15
  16   socket_fd = socket(AF_UNIX, SOCK_STREAM, 0);
  17   fprintf (stderr, "Open socket %d\n", socket_fd);
  18   struct sockaddr_un  my_addr;
  19
  20   memset(&my_addr, 0, sizeof(my_addr));
  21   my_addr.sun_family = AF_UNIX;
  22   strncpy(my_addr.sun_path, SPATH, sizeof(my_addr.sun_path) - 1);
  23   bind(socket_fd, (struct sockaddr *) &my_addr, sizeof(my_addr));
  24 }
  25
  26 int main ()
  27 {
  28   open_socket();
  29
  30   if (socket_fd != -1)
  31    {
  32       fprintf(stderr, "close socket_fd %d\n", socket_fd);
  33       close (socket_fd);
  34    }
  35
  36   fprintf (stderr, "and close the socket again %d\n", socket_fd);
  37   close (socket_fd);
  38
  39   return 0;
  40 }
  41