diff options
Diffstat (limited to 'cpukit/librpc/src/rpc/get_myaddress.c')
| -rw-r--r-- | cpukit/librpc/src/rpc/get_myaddress.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/cpukit/librpc/src/rpc/get_myaddress.c b/cpukit/librpc/src/rpc/get_myaddress.c deleted file mode 100644 index a3410e9511..0000000000 --- a/cpukit/librpc/src/rpc/get_myaddress.c +++ /dev/null @@ -1,143 +0,0 @@ -#include "rtems-rpc-config.h" - -/* - * 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 = "$FreeBSD: src/lib/libc/rpc/get_myaddress.c,v 1.17 2000/01/27 23:06:37 jasone Exp $"; -#endif - -/* - * get_myaddress.c - * - * Get client's IP address via ioctl. This avoids using the yellowpages. - * Copyright (C) 1984, Sun Microsystems, Inc. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <rpc/types.h> -#include <rpc/xdr.h> -#include <rpc/pmap_prot.h> -#include <sys/socket.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <net/if.h> -#include <sys/ioctl.h> -#include <netinet/in.h> -#include <arpa/inet.h> - - -/* - * Determine the size of an ifreq structure when addresses larger - * than the pifreq structure size may be returned from the kernel. - */ -static size_t ifreqSize ( struct ifreq *pifreq ) -{ - size_t size = pifreq->ifr_addr.sa_len + sizeof(pifreq->ifr_name); - if ( size < sizeof ( *pifreq ) ) { - size = sizeof ( *pifreq ); - } - return size; -} - -/* - * don't use gethostbyname, which would invoke yellow pages - * - * Avoid loopback interfaces. We return information from a loopback - * interface only if there are no other possible interfaces. - */ -int -get_myaddress( - struct sockaddr_in *addr) -{ - int s; - struct ifconf ifc; - struct ifreq ifreq, *ifr; - int loopback = 0, gotit = 0; - - if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - return(-1); - } -again: - ifc.ifc_len = sizeof ( struct ifreq ) * 8u; - ifc.ifc_buf = malloc ( ifc.ifc_len ); - if ( ! ifc.ifc_buf ) { - _RPC_close(s); - return -1; - } - if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) { - _RPC_close(s); - free ( ifc.ifc_buf ); - return(-1); - } - ifr = ifc.ifc_req; - - while ( ifc.ifc_len >= ifreqSize ( ifr ) ) { - ifreq = *ifr; - if (ioctl(s, SIOCGIFFLAGS, (char *) &ifreq ) < 0) { - _RPC_close(s); - free ( ifc.ifc_buf ); - return(-1); - } - if (((ifreq.ifr_flags & IFF_UP) && - ifr->ifr_addr.sa_family == AF_INET && - !(ifreq.ifr_flags & IFF_LOOPBACK)) || - (loopback == 1 && (ifreq.ifr_flags & IFF_LOOPBACK) - && (ifr->ifr_addr.sa_family == AF_INET) - && (ifreq.ifr_flags & IFF_UP))) { - *addr = *((struct sockaddr_in *)&ifr->ifr_addr); - addr->sin_port = htons(PMAPPORT); - gotit = 1; - break; - } - - const size_t len = ifreqSize ( ifr ); - ifc.ifc_len -= len; - /* - * RTEMS seems to require copy up to properly aligned - * boundary at the beginning of the buffer? - */ - memmove ( ifr, len + (char *) ifr, ifc.ifc_len ); - } - if (gotit == 0 && loopback == 0) { - free ( ifc.ifc_buf ); - loopback = 1; - goto again; - } - (void)_RPC_close(s); - free ( ifc.ifc_buf ); - return (gotit ? 0 : -1); -} |