/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2011, 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. * ***************************************************************************/ #include "setup.h" #ifdef HAVE_UNISTD_H # include <unistd.h> #endif #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_NET_IF_H # include <net/if.h> #endif #ifdef HAVE_SYS_IOCTL_H # include <sys/ioctl.h> #endif #ifdef HAVE_NETDB_H # include <netdb.h> #endif #ifdef HAVE_SYS_SOCKIO_H # include <sys/sockio.h> #endif #ifdef HAVE_IFADDRS_H # include <ifaddrs.h> #endif #ifdef HAVE_STROPTS_H # include <stropts.h> #endif #ifdef __VMS # include <inet.h> #endif #include "inet_ntop.h" #include "strequal.h" #include "if2ip.h" #define _MPRINTF_REPLACE /* use our functions only */ #include <curl/mprintf.h> #include "curl_memory.h" /* The last #include file should be: */ #include "memdebug.h" /* ------------------------------------------------------------------ */ #if defined(HAVE_GETIFADDRS) bool Curl_if_is_interface_name(const char *interf) { bool result = FALSE; struct ifaddrs *iface, *head; if(getifaddrs(&head) >= 0) { for(iface=head; iface != NULL; iface=iface->ifa_next) { if(curl_strequal(iface->ifa_name, interf)) { result = TRUE; break; } } freeifaddrs(head); } return result; } char *Curl_if2ip(int af, const char *interf, char *buf, int buf_size) { struct ifaddrs *iface, *head; char *ip = NULL; if(getifaddrs(&head) >= 0) { for(iface=head; iface != NULL; iface=iface->ifa_next) { if((iface->ifa_addr != NULL) && (iface->ifa_addr->sa_family == af) && curl_strequal(iface->ifa_name, interf)) { void *addr; char scope[12]=""; #ifdef ENABLE_IPV6 if(af == AF_INET6) { unsigned int scopeid = 0; addr = &((struct sockaddr_in6 *)iface->ifa_addr)->sin6_addr; #ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID /* Include the scope of this interface as part of the address */ scopeid = ((struct sockaddr_in6 *)iface->ifa_addr)->sin6_scope_id; #endif if(scopeid) snprintf(scope, sizeof(scope), "%%%u", scopeid); } else #endif addr = &((struct sockaddr_in *)iface->ifa_addr)->sin_addr; ip = (char *) Curl_inet_ntop(af, addr, buf, buf_size); strlcat(buf, scope, buf_size); break; } } freeifaddrs(head); } return ip; } #elif defined(HAVE_IOCTL_SIOCGIFADDR) bool Curl_if_is_interface_name(const char *interf) { /* This is here just to support the old interfaces */ char buf[256]; char *ip = Curl_if2ip(AF_INET, interf, buf, sizeof(buf)); return (ip != NULL) ? TRUE : FALSE; } char *Curl_if2ip(int af, const char *interf, char *buf, int buf_size) { struct ifreq req; struct in_addr in; struct sockaddr_in *s; curl_socket_t dummy; size_t len; char *ip; if(!interf || (af != AF_INET)) return NULL; len = strlen(interf); if(len >= sizeof(req.ifr_name)) return NULL; dummy = socket(AF_INET, SOCK_STREAM, 0); if(CURL_SOCKET_BAD == dummy) return NULL; memset(&req, 0, sizeof(req)); memcpy(req.ifr_name, interf, len+1); req.ifr_addr.sa_family = AF_INET; if(ioctl(dummy, SIOCGIFADDR, &req) < 0) { sclose(dummy); return NULL; } s = (struct sockaddr_in *)&req.ifr_addr; memcpy(&in, &s->sin_addr, sizeof(in)); ip = (char *) Curl_inet_ntop(s->sin_family, &in, buf, buf_size); sclose(dummy); return ip; } #else bool Curl_if_is_interface_name(const char *interf) { (void) interf; return FALSE; } char *Curl_if2ip(int af, const char *interf, char *buf, int buf_size) { (void) af; (void) interf; (void) buf; (void) buf_size; return NULL; } #endif