glibc/sunrpc/get_myaddr.c
Roland McGrath cbd3dceb39 Sat Nov 25 02:48:47 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* assert/assert-perr.c, assert/assert.c, inet/rcmd.c,
	malloc/mcheck.c, malloc/vm-limit.c, posix/getconf.c, posix/id.c,
	resolv/herror.c, sunrpc/auth_unix.c, sunrpc/clnt_perr.c,
	sunrpc/clnt_raw.c, sunrpc/get_myaddr.c, sunrpc/pmap_clnt.c,
	sunrpc/pmap_rmt.c, sunrpc/portmap.c, sunrpc/rpc_main.c,
	sunrpc/rpc_parse.c, sunrpc/rpc_scan.c, sunrpc/rpc_util.c,
	sunrpc/rpcinfo.c, sunrpc/svc_simple.c, sunrpc/svc_tcp.c,
	sunrpc/svc_udp.c, time/zdump.c, time/zic.c: Mark translatable
	strings.
Sat Nov 25 02:48:47 1995  Ulrich Drepper  <drepper@gnu.ai.mit.edu>

	* assert/assert-perr.c, assert/assert.c, inet/rcmd.c,
	malloc/mcheck.c, malloc/vm-limit.c, posix/getconf.c, posix/id.c,
	resolv/herror.c, sunrpc/auth_unix.c, sunrpc/clnt_perr.c,
	sunrpc/clnt_raw.c, sunrpc/get_myaddr.c, sunrpc/pmap_clnt.c,
	sunrpc/pmap_rmt.c, sunrpc/portmap.c, sunrpc/rpc_main.c,
	sunrpc/rpc_parse.c, sunrpc/rpc_scan.c, sunrpc/rpc_util.c,
	sunrpc/rpcinfo.c, sunrpc/svc_simple.c, sunrpc/svc_tcp.c,
	sunrpc/svc_udp.c, time/zdump.c, time/zic.c: Mark translatable
	strings.
1995-11-26 17:37:11 +00:00

93 lines
2.8 KiB
C

/* @(#)get_myaddress.c 2.1 88/07/29 4.0 RPCSRC */
/*
* 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(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.
* Copyright (C) 1984, Sun Microsystems, Inc.
*/
#include <rpc/types.h>
#include <rpc/pmap_prot.h>
#include <sys/socket.h>
#include <stdio.h>
#undef _POSIX_SOURCE /* Ultrix <sys/param.h> needs --roland@gnu */
#include <sys/param.h> /* Ultrix needs before net/if --roland@gnu */
#include <net/if.h>
#include <sys/ioctl.h>
/* Order of following two #includes reversed by roland@gnu */
#include <netinet/in.h>
#include <arpa/inet.h>
/*
* don't use gethostbyname, which would invoke yellow pages
*/
get_myaddress(addr)
struct sockaddr_in *addr;
{
int s;
char buf[BUFSIZ];
struct ifconf ifc;
struct ifreq ifreq, *ifr;
int len;
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
perror("get_myaddress: socket");
exit(1);
}
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);
}