| /* $Id$ */ |
| /* |
| * Copyright (C)2003-2007 Benny Prijono <benny@prijono.org> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| #include <pj/ip_helper.h> |
| #include <pj/addr_resolv.h> |
| #include <pj/assert.h> |
| #include <pj/errno.h> |
| #include <pj/string.h> |
| #include <pj/compat/socket.h> |
| |
| static pj_status_t dummy_enum_ip_interface(unsigned *p_cnt, |
| pj_in_addr ifs[]) |
| { |
| pj_status_t status; |
| |
| PJ_ASSERT_RETURN(p_cnt && *p_cnt > 0 && ifs, PJ_EINVAL); |
| |
| pj_bzero(ifs, sizeof(ifs[0]) * (*p_cnt)); |
| |
| /* Just get one default route */ |
| status = pj_getdefaultipinterface(&ifs[0]); |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| *p_cnt = 1; |
| return PJ_SUCCESS; |
| } |
| |
| #ifdef SIOCGIFCONF |
| static pj_status_t sock_enum_ip_interface(unsigned *p_cnt, |
| pj_in_addr ifs[]) |
| { |
| pj_sock_t sock; |
| char buf[512]; |
| struct ifconf ifc; |
| struct ifreq *ifr; |
| int i, count; |
| pj_status_t status; |
| |
| status = pj_sock_socket(PJ_AF_INET, PJ_SOCK_DGRAM, 0, &sock); |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| /* Query available interfaces */ |
| ifc.ifc_len = sizeof(buf); |
| ifc.ifc_buf = buf; |
| |
| if (ioctl(sock, SIOCGIFCONF, &ifc) < 0) { |
| int oserr = pj_get_netos_error(); |
| pj_sock_close(sock); |
| return PJ_RETURN_OS_ERROR(oserr); |
| } |
| |
| /* Done with socket */ |
| pj_sock_close(sock); |
| |
| /* Interface interfaces */ |
| ifr = (struct ifreq*) ifc.ifc_req; |
| count = ifc.ifc_len / sizeof(struct ifreq); |
| if (count > *p_cnt) |
| count = *p_cnt; |
| else |
| *p_cnt = count; |
| for (i=0; i<count; ++i) { |
| struct ifreq *itf = &ifr[i]; |
| ifs[i].s_addr = ((struct sockaddr_in *)&itf->ifr_addr)->sin_addr.s_addr; |
| } |
| |
| return PJ_SUCCESS; |
| } |
| #endif /* SIOCGIFCONF */ |
| |
| /* |
| * Enumerate the local IP interface currently active in the host. |
| */ |
| PJ_DEF(pj_status_t) pj_enum_ip_interface(unsigned *p_cnt, |
| pj_in_addr ifs[]) |
| { |
| #ifdef SIOCGIFCONF |
| if (sock_enum_ip_interface(p_cnt, ifs) == PJ_SUCCESS) |
| return PJ_SUCCESS; |
| #endif |
| return dummy_enum_ip_interface(p_cnt, ifs); |
| } |
| |
| /* |
| * Enumerate the IP routing table for this host. |
| */ |
| PJ_DEF(pj_status_t) pj_enum_ip_route(unsigned *p_cnt, |
| pj_ip_route_entry routes[]) |
| { |
| pj_status_t status; |
| |
| PJ_ASSERT_RETURN(p_cnt && *p_cnt > 0 && routes, PJ_EINVAL); |
| |
| pj_bzero(routes, sizeof(routes[0]) * (*p_cnt)); |
| |
| /* Just get one default route */ |
| status = pj_getdefaultipinterface(&routes[0].ipv4.if_addr); |
| if (status != PJ_SUCCESS) |
| return status; |
| |
| routes[0].ipv4.dst_addr.s_addr = 0; |
| routes[0].ipv4.mask.s_addr = 0; |
| *p_cnt = 1; |
| |
| return PJ_SUCCESS; |
| } |
| |