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glibc  2.9
Defines | Functions
filesrv.c File Reference
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/un.h>

Go to the source code of this file.

Defines

#define SERVER   "/tmp/serversocket"
#define MAXMSG   512

Functions

int main (void)

Define Documentation

#define MAXMSG   512

Definition at line 8 of file filesrv.c.

#define SERVER   "/tmp/serversocket"

Definition at line 7 of file filesrv.c.


Function Documentation

int main ( void  )

Definition at line 11 of file filesrv.c.

{
  int sock;
  char message[MAXMSG];
  struct sockaddr_un name;
  size_t size;
  int nbytes;

  /* Remove the filename first, it's ok if the call fails */
  unlink (SERVER);

  /* Make the socket, then loop endlessly. */
  sock = make_named_socket (SERVER);
  while (1)
    {
      /* Wait for a datagram. */
      size = sizeof (name);
      nbytes = recvfrom (sock, message, MAXMSG, 0,
                      (struct sockaddr *) & name, &size);
      if (nbytes < 0)
       {
         perror ("recfrom (server)");
         exit (EXIT_FAILURE);
       }

      /* Give a diagnostic message. */
      fprintf (stderr, "Server: got message: %s\n", message);

      /* Bounce the message back to the sender. */
      nbytes = sendto (sock, message, nbytes, 0,
                     (struct sockaddr *) & name, size);
      if (nbytes < 0)
       {
         perror ("sendto (server)");
         exit (EXIT_FAILURE);
       }
    }
}

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