int_osf2.c

sock protocol ,it is useful!

/*
 * Copyright (c) 1997, 1998, 1999
 *      Inferno Nettverk A/S, Norway.  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. The above copyright notice, this list of conditions and the following
 *    disclaimer must appear in all copies of the software, derivative works
 *    or modified versions, and any portions thereof, aswell as in all
 *    supporting documentation.
 * 2. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by
 *      Inferno Nettverk A/S, Norway.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 *
 * Inferno Nettverk A/S requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  [e-mail]
 *  Inferno Nettverk A/S
 *  Oslo Research Park
 *  Gaustadal閑n 21
 *  N-0349 Oslo
 *  Norway
 *
 * any improvements or extensions that they make and grant Inferno Nettverk A/S
 * the rights to redistribute these changes.
 *
 */

#include "common.h"

#if HAVE_EXTRA_OSF_SYMBOLS

#if SOCKSLIBRARY_DYNAMIC

#include "interposition.h"

static const char rcsid[] =
"$Id: int_osf2.c,v 1.6 1999/12/11 16:36:09 karls Exp $";

#undef accept
#undef getpeername
#undef getsockname
#undef recvfrom
#undef recvmsg
#undef sendmsg

	/* nfoo versions (with sockaddr len) of the system calls. */

int
sys_naccept(s, addr, addrlen)
	int s;
	struct sockaddr *addr;
	socklen_t *addrlen;
{
	int rc;
	int (*function)(int s, struct sockaddr *addr, socklen_t *addrlen);

	SYSCALL_START(s);
	function = symbolfunction(SYMBOL_NACCEPT);
	rc = function(s, addr, addrlen);
	SYSCALL_END(s);
	return rc;
}

int
sys_ngetpeername(s, name, namelen)
	int s;
	struct sockaddr *name;
	socklen_t *namelen;
{
	int rc;
	int (*function)(int s, const struct sockaddr *name, socklen_t *namelen);

	SYSCALL_START(s);
	function = symbolfunction(SYMBOL_NGETPEERNAME);
	rc = function(s, name, namelen);
	SYSCALL_END(s);
	return rc;
}

int
sys_ngetsockname(s, name, namelen)
	int s;
	struct sockaddr *name;
	socklen_t *namelen;
{
	int rc;
	int (*function)(int s, const struct sockaddr *name, socklen_t *namelen);

	SYSCALL_START(s);
	function = symbolfunction(SYMBOL_NGETSOCKNAME);
	rc = function(s, name, namelen);
	SYSCALL_END(s);
	return rc;
}

int
sys_nrecvfrom(s, buf, len, flags, from, fromlen)
	int s;
	void *buf;
	size_t len;
	int flags;
	struct sockaddr *from;
	size_t *fromlen;
{
	int rc;
	int (*function)(int s, void *buf, size_t len, int flags,
					    struct sockaddr *from, socklen_t *fromlen);

	SYSCALL_START(s);
	function = symbolfunction(SYMBOL_NRECVFROM);
	rc = function(s, buf, len, flags, from, fromlen);
	SYSCALL_END(s);
	return rc;
}

ssize_t
sys_nrecvmsg(s, msg, flags)
	int s;
	struct msghdr *msg;
	int flags;
{
	ssize_t rc;
	int (*function)(int s, struct msghdr *msg, int flags);

	SYSCALL_START(s);
	function = symbolfunction(SYMBOL_NRECVMSG);
	rc = function(s, msg, flags);
	SYSCALL_END(s);
	return rc;
}

ssize_t
sys_nsendmsg(s, msg, flags)
	int s;
	const struct msghdr *msg;
	int flags;
{
	ssize_t rc;
	int (*function)(int s, const struct msghdr *msg, int flags);

	SYSCALL_START(s);
	function = symbolfunction(SYMBOL_NSENDMSG);
	rc = function(s, msg, flags);
	SYSCALL_END(s);
	return rc;
}


	/*
	 * the interpositioned functions.
	 */


int
naccept(s, addr, addrlen)
	int s;
	struct sockaddr *addr;
	socklen_t *addrlen;
{
	if (ISSYSCALL(s))
		return sys_naccept(s, addr, addrlen);
	return Raccept(s, addr, addrlen);
}
int
ngetpeername(s, name, namelen)
	int s;
	struct sockaddr *name;
	socklen_t *namelen;
{
	if (ISSYSCALL(s))
		return sys_ngetpeername(s, name, namelen);
	return Rgetpeername(s, name, namelen);
}

int
ngetsockname(s, name, namelen)
	int s;
	struct sockaddr *name;
	socklen_t *namelen;
{
	if (ISSYSCALL(s))
		return sys_ngetpeername(s, name, namelen);
	return Rgetsockname(s, name, namelen);
}

ssize_t
nrecvfrom(s, buf, len, flags, from, fromlen)
	int s;
	void *buf;
	size_t len;
	int flags;
	struct sockaddr *from;
	size_t *fromlen;
{
	if (ISSYSCALL(s))
		return sys_nrecvfrom(s, buf, len, flags, from, fromlen);
	return Rrecvfrom(s, buf, len, flags, from, fromlen);
}

ssize_t
nrecvmsg(s, msg, flags)
	int s;
	struct msghdr *msg;
	int flags;
{
	if (ISSYSCALL(s))
		return sys_nrecvmsg(s, msg, flags);
	return Rrecvmsg(s, msg, flags);
}

ssize_t
nsendmsg(s, msg, flags)
	int s;
	const struct msghdr *msg;
	int flags;
{
	if (ISSYSCALL(s))
		return sys_nsendmsg(s, msg, flags);
	return Rsendmsg(s, msg, flags);
}

#endif /* SOCKSLIBRARY_DYNAMIC */

#endif /* HAVE_EXTRA_OSF_SYMBOLS */