mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-24 11:41:07 +00:00
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/* Byte Stream Socket Example
|
|
Copyright (C) 1991-2014 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 2
|
|
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, if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <netdb.h>
|
|
|
|
#define PORT 5555
|
|
#define MESSAGE "Yow!!! Are we having fun yet?!?"
|
|
#define SERVERHOST "www.gnu.org"
|
|
|
|
void
|
|
write_to_server (int filedes)
|
|
{
|
|
int nbytes;
|
|
|
|
nbytes = write (filedes, MESSAGE, strlen (MESSAGE) + 1);
|
|
if (nbytes < 0)
|
|
{
|
|
perror ("write");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
extern void init_sockaddr (struct sockaddr_in *name,
|
|
const char *hostname,
|
|
uint16_t port);
|
|
int sock;
|
|
struct sockaddr_in servername;
|
|
|
|
/* Create the socket. */
|
|
sock = socket (PF_INET, SOCK_STREAM, 0);
|
|
if (sock < 0)
|
|
{
|
|
perror ("socket (client)");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
/* Connect to the server. */
|
|
init_sockaddr (&servername, SERVERHOST, PORT);
|
|
if (0 > connect (sock,
|
|
(struct sockaddr *) &servername,
|
|
sizeof (servername)))
|
|
{
|
|
perror ("connect (client)");
|
|
exit (EXIT_FAILURE);
|
|
}
|
|
|
|
/* Send data to the server. */
|
|
write_to_server (sock);
|
|
close (sock);
|
|
exit (EXIT_SUCCESS);
|
|
}
|