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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /manual/examples/inetsrv.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
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Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'manual/examples/inetsrv.c')
-rw-r--r--manual/examples/inetsrv.c120
1 files changed, 0 insertions, 120 deletions
diff --git a/manual/examples/inetsrv.c b/manual/examples/inetsrv.c
deleted file mode 100644
index 01ae631818..0000000000
--- a/manual/examples/inetsrv.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/* Byte Stream Connection Server Example
- Copyright (C) 1991-2017 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 MAXMSG 512
-
-int
-read_from_client (int filedes)
-{
- char buffer[MAXMSG];
- int nbytes;
-
- nbytes = read (filedes, buffer, MAXMSG);
- if (nbytes < 0)
- {
- /* Read error. */
- perror ("read");
- exit (EXIT_FAILURE);
- }
- else if (nbytes == 0)
- /* End-of-file. */
- return -1;
- else
- {
- /* Data read. */
- fprintf (stderr, "Server: got message: `%s'\n", buffer);
- return 0;
- }
-}
-
-int
-main (void)
-{
- extern int make_socket (uint16_t port);
- int sock;
- fd_set active_fd_set, read_fd_set;
- int i;
- struct sockaddr_in clientname;
- size_t size;
-
- /* Create the socket and set it up to accept connections. */
- sock = make_socket (PORT);
- if (listen (sock, 1) < 0)
- {
- perror ("listen");
- exit (EXIT_FAILURE);
- }
-
- /* Initialize the set of active sockets. */
- FD_ZERO (&active_fd_set);
- FD_SET (sock, &active_fd_set);
-
- while (1)
- {
- /* Block until input arrives on one or more active sockets. */
- read_fd_set = active_fd_set;
- if (select (FD_SETSIZE, &read_fd_set, NULL, NULL, NULL) < 0)
- {
- perror ("select");
- exit (EXIT_FAILURE);
- }
-
- /* Service all the sockets with input pending. */
- for (i = 0; i < FD_SETSIZE; ++i)
- if (FD_ISSET (i, &read_fd_set))
- {
- if (i == sock)
- {
- /* Connection request on original socket. */
- int new;
- size = sizeof (clientname);
- new = accept (sock,
- (struct sockaddr *) &clientname,
- &size);
- if (new < 0)
- {
- perror ("accept");
- exit (EXIT_FAILURE);
- }
- fprintf (stderr,
- "Server: connect from host %s, port %hd.\n",
- inet_ntoa (clientname.sin_addr),
- ntohs (clientname.sin_port));
- FD_SET (new, &active_fd_set);
- }
- else
- {
- /* Data arriving on an already-connected socket. */
- if (read_from_client (i) < 0)
- {
- close (i);
- FD_CLR (i, &active_fd_set);
- }
- }
- }
- }
-}