100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
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/*
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* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H<EFBFBD>gskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Kungliga Tekniska
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* H<EFBFBD>gskolan and its contributors.
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*
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* 4. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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RCSID("$Id: mini_inetd.c,v 1.10 1997/05/02 14:30:07 assar Exp $");
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#include <roken.h>
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void
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mini_inetd (int port)
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{
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struct sockaddr_in sa;
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int s = socket(AF_INET, SOCK_STREAM, 0);
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int s2;
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int one = 1;
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if(s < 0){
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perror("socket");
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exit(1);
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}
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#if defined(SO_REUSEADDR) && defined(HAVE_SETSOCKOPT)
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if(setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (void *)&one,
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sizeof(one)) < 0){
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perror("setsockopt");
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exit(1);
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}
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#endif
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memset(&sa, 0, sizeof(sa));
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sa.sin_family = AF_INET;
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sa.sin_port = port;
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sa.sin_addr.s_addr = INADDR_ANY;
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if(bind(s, (struct sockaddr*)&sa, sizeof(sa)) < 0){
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perror("bind");
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exit(1);
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}
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if(listen(s, SOMAXCONN) < 0){
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perror("listen");
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exit(1);
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}
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s2 = accept(s, NULL, 0);
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if(s2 < 0){
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perror("accept");
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exit(1);
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}
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close(s);
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dup2(s2, STDIN_FILENO);
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dup2(s2, STDOUT_FILENO);
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/* dup2(s2, STDERR_FILENO); */
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close(s2);
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}
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