/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at http://curl.haxx.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * * $Id$ ***************************************************************************/ #include "setup.h" #include <stdio.h> #include <stdlib.h> #include <string.h> #ifdef HAVE_UNISTD_H #include <unistd.h> #endif #if !defined(WIN32) && !defined(__BEOS__) && !defined(__CYGWIN32__) && \ !defined(__riscos__) && !defined(__INTERIX) && !defined(NETWARE) #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETINET_IN_H #include <netinet/in.h> #endif #ifdef HAVE_ARPA_INET_H #include <arpa/inet.h> #endif #ifdef HAVE_SYS_TIME_H /* This must be before net/if.h for AIX 3.2 to enjoy life */ #include <sys/time.h> #endif #ifdef HAVE_NET_IF_H #include <net/if.h> #endif #ifdef HAVE_SYS_IOCTL_H #include <sys/ioctl.h> #endif /* -- if2ip() -- */ #ifdef HAVE_NETDB_H #include <netdb.h> #endif #ifdef HAVE_SYS_SOCKIO_H #include <sys/sockio.h> #endif #if defined(HAVE_INET_NTOA_R) && !defined(HAVE_INET_NTOA_R_DECL) #include "inet_ntoa_r.h" #endif #ifdef VMS #include <inet.h> #endif #include "if2ip.h" #include "curl_memory.h" /* The last #include file should be: */ #include "memdebug.h" #define SYS_ERROR -1 char *Curl_if2ip(const char *interface, char *buf, int buf_size) { int dummy; char *ip=NULL; if(!interface) return NULL; dummy = socket(AF_INET, SOCK_STREAM, 0); if (SYS_ERROR == dummy) { return NULL; } else { struct ifreq req; size_t len = strlen(interface); memset(&req, 0, sizeof(req)); if(len >= sizeof(req.ifr_name)) return NULL; /* this can't be a fine interface name */ memcpy(req.ifr_name, interface, len+1); req.ifr_addr.sa_family = AF_INET; #ifdef IOCTL_3_ARGS if (SYS_ERROR == ioctl(dummy, SIOCGIFADDR, &req)) { #else if (SYS_ERROR == ioctl(dummy, SIOCGIFADDR, &req, sizeof(req))) { #endif sclose(dummy); return NULL; } else { struct in_addr in; union { struct sockaddr_in *sin; struct sockaddr *s; } soadd; soadd.s = &req.ifr_dstaddr; memcpy(&in, &(soadd.sin->sin_addr.s_addr), sizeof(in)); #if defined(HAVE_INET_NTOA_R) ip = inet_ntoa_r(in,buf,buf_size); #else ip = strncpy(buf,inet_ntoa(in),buf_size); ip[buf_size - 1] = 0; #endif } sclose(dummy); } return ip; } /* -- end of if2ip() -- */ #else char *Curl_if2ip(const char *interface, char *buf, int buf_size) { (void) interface; (void) buf; (void) buf_size; return NULL; } #endif