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/* $OpenBSD: mini_inetd.c,v 1.1 1998/02/18 07:10:25 art Exp $ */
/* $KTH : mini_inetd.c,v 1.12 1997/11/02 04:14:12 assar Exp $ */
/*
* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Kungliga Tekniska
* Högskolan and its contributors.
*
* 4. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
void
mini_inetd (int port)
{
struct sockaddr_in sa;
int s = socket(AF_INET, SOCK_STREAM, 0);
int s2;
int one = 1;
if(s < 0){
perror("socket");
exit(1);
}
#if defined(SO_REUSEADDR) && defined(HAVE_SETSOCKOPT)
if(setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (void *)&one,
sizeof(one)) < 0){
perror("setsockopt");
exit(1);
}
#endif
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_port = port;
sa.sin_addr.s_addr = INADDR_ANY;
if(bind(s, (struct sockaddr*)&sa, sizeof(sa)) < 0){
perror("bind");
exit(1);
}
if(listen(s, SOMAXCONN) < 0){
perror("listen");
exit(1);
}
s2 = accept(s, NULL, 0);
if(s2 < 0){
perror("accept");
exit(1);
}
close(s);
dup2(s2, STDIN_FILENO);
dup2(s2, STDOUT_FILENO);
/* dup2(s2, STDERR_FILENO); */
close(s2);
}
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