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/* @(#)get_myaddress.c 2.1 88/07/29 4.0 RPCSRC */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of the "Oracle America, Inc." 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 COPYRIGHT HOLDERS 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 COPYRIGHT
* HOLDER 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.
*/
#if !defined(lint) && defined(SCCSIDS)
static char sccsid[] = "@(#)get_myaddress.c 1.4 87/08/11 Copyr 1984 Sun Micro";
#endif
/*
* get_myaddress.c
*
* Get client's IP address via ioctl. This avoids using the yellowpages.
*/
#ifdef GSSAPI_KRB5
#include <string.h>
#include <gssrpc/types.h>
#include <gssrpc/rpc.h>
#include <gssrpc/pmap_prot.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <krb5.h>
/*
* don't use gethostbyname, which would invoke yellow pages
*/
int
get_myaddress(struct sockaddr_in *addr)
{
memset(addr, 0, sizeof(*addr));
addr->sin_family = AF_INET;
addr->sin_port = htons(PMAPPORT);
addr->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
return (0);
}
#else /* !GSSAPI_KRB5 */
#include <gssrpc/types.h>
#include <gssrpc/pmap_prot.h>
#include <sys/socket.h>
#if defined(sun)
#include <sys/sockio.h>
#endif
#include <stdio.h>
#ifdef OSF1
#include <net/route.h>
#include <sys/mbuf.h>
#endif
#include <net/if.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#include <netinet/in.h>
/*
* don't use gethostbyname, which would invoke yellow pages
*/
get_myaddress(struct sockaddr_in *addr)
{
int s;
char buf[256 * sizeof (struct ifreq)];
struct ifconf ifc;
struct ifreq ifreq, *ifr;
int len;
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("get_myaddress: socket");
exit(1);
}
set_cloexec_fd(s);
ifc.ifc_len = sizeof (buf);
ifc.ifc_buf = buf;
if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) {
perror("get_myaddress: ioctl (get interface configuration)");
exit(1);
}
ifr = ifc.ifc_req;
for (len = ifc.ifc_len; len; len -= sizeof ifreq) {
ifreq = *ifr;
if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) {
perror("get_myaddress: ioctl");
exit(1);
}
if ((ifreq.ifr_flags & IFF_UP) &&
ifr->ifr_addr.sa_family == AF_INET) {
*addr = *((struct sockaddr_in *)&ifr->ifr_addr);
addr->sin_port = htons(PMAPPORT);
break;
}
ifr++;
}
(void) close(s);
}
#endif /* !GSSAPI_KRB5 */
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