mirror of
https://github.com/darlinghq/darling-Libinfo.git
synced 2025-02-17 05:38:05 +00:00
141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
|
|
*
|
|
* @APPLE_LICENSE_HEADER_START@
|
|
*
|
|
* Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
|
|
* Reserved. This file contains Original Code and/or Modifications of
|
|
* Original Code as defined in and that are subject to the Apple Public
|
|
* Source License Version 1.1 (the "License"). You may not use this file
|
|
* except in compliance with the License. Please obtain a copy of the
|
|
* License at http://www.apple.com/publicsource and read it before using
|
|
* this file.
|
|
*
|
|
* The Original Code and all software distributed under the License are
|
|
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
|
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
|
|
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
|
|
* License for the specific language governing rights and limitations
|
|
* under the License.
|
|
*
|
|
* @APPLE_LICENSE_HEADER_END@
|
|
*/
|
|
/*
|
|
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
|
|
* unrestricted use provided that this legend is included on all tape
|
|
* media and as a part of the software program in whole or part. Users
|
|
* may copy or modify Sun RPC without charge, but are not authorized
|
|
* to license or distribute it to anyone else except as part of a product or
|
|
* program developed by the user.
|
|
*
|
|
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
|
|
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
|
|
*
|
|
* Sun RPC is provided with no support and without any obligation on the
|
|
* part of Sun Microsystems, Inc. to assist in its use, correction,
|
|
* modification or enhancement.
|
|
*
|
|
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
|
|
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
|
|
* OR ANY PART THEREOF.
|
|
*
|
|
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
|
|
* or profits or other special, indirect and consequential damages, even if
|
|
* Sun has been advised of the possibility of such damages.
|
|
*
|
|
* Sun Microsystems, Inc.
|
|
* 2550 Garcia Avenue
|
|
* Mountain View, California 94043
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
/*static char *sccsid = "from: @(#)get_myaddress.c 1.4 87/08/11 Copyr 1984 Sun Micro";*/
|
|
/*static char *sccsid = "from: @(#)get_myaddress.c 2.1 88/07/29 4.0 RPCSRC";*/
|
|
static char *rcsid = "$Id: get_myaddress.c,v 1.4 2002/02/19 20:36:23 epeyton Exp $";
|
|
#endif
|
|
|
|
/*
|
|
* get_myaddress.c
|
|
*
|
|
* Get client's IP address via ioctl. This avoids using the yellowpages.
|
|
* Copyright (C) 1984, Sun Microsystems, Inc.
|
|
*
|
|
* Re-worked for 4.4BSD by Marc Majka at Apple.
|
|
*/
|
|
|
|
#include <rpc/types.h>
|
|
#include <rpc/xdr.h>
|
|
#include <rpc/pmap_prot.h>
|
|
#include <sys/socket.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <net/if.h>
|
|
#include <sys/ioctl.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
|
|
int
|
|
get_myaddress(struct sockaddr_in *addr)
|
|
{
|
|
struct ifconf ifc;
|
|
struct ifreq *ifr;
|
|
char buf[BUFSIZ];
|
|
int offset, x, addrlen, s;
|
|
|
|
bzero(addr, sizeof(struct sockaddr_in));
|
|
addr->sin_family = AF_INET;
|
|
|
|
s = socket(AF_INET, SOCK_DGRAM, 0);
|
|
|
|
if (s < 0)
|
|
{
|
|
addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
|
return 0;
|
|
}
|
|
|
|
ifc.ifc_len = sizeof(buf);
|
|
ifc.ifc_buf = buf;
|
|
|
|
if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0)
|
|
{
|
|
addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
|
close(s);
|
|
return 0;
|
|
}
|
|
|
|
addrlen = sizeof(struct ifreq) - IFNAMSIZ;
|
|
offset = 0;
|
|
|
|
while (offset <= ifc.ifc_len)
|
|
{
|
|
ifr = (struct ifreq *)(ifc.ifc_buf + offset);
|
|
offset += IFNAMSIZ;
|
|
if (ifr->ifr_addr.sa_len > addrlen) offset += ifr->ifr_addr.sa_len;
|
|
else offset += addrlen;
|
|
|
|
if (ifr->ifr_addr.sa_family != AF_INET) continue;
|
|
if (ioctl(s, SIOCGIFFLAGS, ifr) < 0) continue;
|
|
|
|
x = ((struct sockaddr_in *)&(ifr->ifr_addr))->sin_addr.s_addr;
|
|
if
|
|
(
|
|
(ifr->ifr_flags & IFF_UP) &&
|
|
(!(ifr->ifr_flags & IFF_LOOPBACK)) &&
|
|
(x != 0) &&
|
|
(x != -1)
|
|
)
|
|
{
|
|
addr->sin_addr.s_addr = x;
|
|
close(s);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
close(s);
|
|
addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
|
return 0;
|
|
}
|