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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/filesrv.c
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initial import
Diffstat (limited to 'manual/examples/filesrv.c')
-rw-r--r--manual/examples/filesrv.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/manual/examples/filesrv.c b/manual/examples/filesrv.c
new file mode 100644
index 0000000..3596b99
--- /dev/null
+++ b/manual/examples/filesrv.c
@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#define SERVER "/tmp/serversocket"
+#define MAXMSG 512
+
+int
+main (void)
+{
+ int sock;
+ char message[MAXMSG];
+ struct sockaddr_un name;
+ size_t size;
+ int nbytes;
+
+ /* 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);
+ }
+ }
+}