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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /manual/examples/inetcli.c
initial import
Diffstat (limited to 'manual/examples/inetcli.c')
-rw-r--r--manual/examples/inetcli.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/manual/examples/inetcli.c b/manual/examples/inetcli.c
new file mode 100644
index 0000000000..258c6892aa
--- /dev/null
+++ b/manual/examples/inetcli.c
@@ -0,0 +1,59 @@
+#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 "churchy.gnu.ai.mit.edu"
+
+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,
+ unsigned short int 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);
+}