*
* Copyright (C) 2007 Denys Vlasenko.
*
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
/* Based on ipsvd-0.12.1. This tcpsvd accepts all options
* - don't know how to retrieve ORIGDST for udp.
*/
+//usage:#define tcpsvd_trivial_usage
+//usage: "[-hEv] [-c N] [-C N[:MSG]] [-b N] [-u USER] [-l NAME] IP PORT PROG"
+/* with not-implemented options: */
+/* //usage: "[-hpEvv] [-c N] [-C N[:MSG]] [-b N] [-u USER] [-l NAME] [-i DIR|-x CDB] [-t SEC] IP PORT PROG" */
+//usage:#define tcpsvd_full_usage "\n\n"
+//usage: "Create TCP socket, bind to IP:PORT and listen\n"
+//usage: "for incoming connection. Run PROG for each connection.\n"
+//usage: "\n IP IP to listen on, 0 = all"
+//usage: "\n PORT Port to listen on"
+//usage: "\n PROG ARGS Program to run"
+//usage: "\n -l NAME Local hostname (else looks up local hostname in DNS)"
+//usage: "\n -u USER[:GRP] Change to user/group after bind"
+//usage: "\n -c N Handle up to N connections simultaneously"
+//usage: "\n -b N Allow a backlog of approximately N TCP SYNs"
+//usage: "\n -C N[:MSG] Allow only up to N connections from the same IP"
+//usage: "\n New connections from this IP address are closed"
+//usage: "\n immediately. MSG is written to the peer before close"
+//usage: "\n -h Look up peer's hostname"
+//usage: "\n -E Don't set up environment variables"
+//usage: "\n -v Verbose"
+//usage:
+//usage:#define udpsvd_trivial_usage
+//usage: "[-hEv] [-c N] [-u USER] [-l NAME] IP PORT PROG"
+//usage:#define udpsvd_full_usage "\n\n"
+//usage: "Create UDP socket, bind to IP:PORT and wait\n"
+//usage: "for incoming packets. Run PROG for each packet,\n"
+//usage: "redirecting all further packets with same peer ip:port to it.\n"
+//usage: "\n IP IP to listen on, 0 = all"
+//usage: "\n PORT Port to listen on"
+//usage: "\n PROG ARGS Program to run"
+//usage: "\n -l NAME Local hostname (else looks up local hostname in DNS)"
+//usage: "\n -u USER[:GRP] Change to user/group after bind"
+//usage: "\n -c N Handle up to N connections simultaneously"
+//usage: "\n -h Look up peer's hostname"
+//usage: "\n -E Don't set up environment variables"
+//usage: "\n -v Verbose"
+
#include "libbb.h"
/* Wants <limits.h> etc, thus included after libbb.h: */
* already bound in parent! This seems to work in Linux.
* (otherwise we can move socket to fd #0 only if bind succeeds) */
close(0);
- set_nport(localp, htons(local_port));
+ set_nport(&localp->u.sa, htons(local_port));
xmove_fd(xsocket(localp->u.sa.sa_family, SOCK_DGRAM, 0), 0);
setsockopt_reuseaddr(0); /* crucial */
xbind(0, &localp->u.sa, localp->len);