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/*
* Copyright (c) 1995, 1996, 1998 Theo de Raadt. All rights reserved.
* Copyright (c) 1983, 1993, 1994
* The Regents of the University of California. 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 University of
* California, Berkeley and its contributors.
* This product includes software developed by Theo de Raadt.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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 "config.h"
#if defined(LIBC_SCCS) && !defined(lint)
static char *rcsid = "$OpenBSD: rresvport.c,v 1.5 2000/01/26 03:43:20 deraadt Exp $";
#endif /* LIBC_SCCS and not lint */
#include "includes.h"
int
my_rresvport_af(int *alport, sa_family_t af)
{
struct sockaddr_storage ss;
struct sockaddr *sa;
u_int16_t *portp;
int s, one = 1, len = sizeof(int), i = 0;
socklen_t salen;
memset(&ss, '\0', sizeof ss);
sa = (struct sockaddr *)&ss;
switch (af) {
case AF_INET:
salen = sizeof(struct sockaddr_in);
portp = &((struct sockaddr_in *)sa)->sin_port;
break;
case AF_INET6:
salen = sizeof(struct sockaddr_in6);
portp = &((struct sockaddr_in6 *)sa)->sin6_port;
break;
default:
errno = EPFNOSUPPORT;
return (-1);
}
sa->sa_family = af;
s = socket(af, SOCK_STREAM, 0);
if (s < 0)
return (-1);
//setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &one, len);
for (*portp = htons(*alport);; *portp = htons(*alport+i)) {
++i;
if (bind(s, sa, salen) == 0)
break;
}
return (s);
}
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