Return to test_igmpv3_join.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / quagga / pimd

Annotation of embedaddon/quagga/pimd/test_igmpv3_join.c, revision 1.1

1.1     ! misho       1: /*
        !             2:   PIM for Quagga
        !             3:   Copyright (C) 2008  Everton da Silva Marques
        !             4: 
        !             5:   This program is free software; you can redistribute it and/or modify
        !             6:   it under the terms of the GNU General Public License as published by
        !             7:   the Free Software Foundation; either version 2 of the License, or
        !             8:   (at your option) any later version.
        !             9: 
        !            10:   This program is distributed in the hope that it will be useful, but
        !            11:   WITHOUT ANY WARRANTY; without even the implied warranty of
        !            12:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            13:   General Public License for more details.
        !            14:   
        !            15:   You should have received a copy of the GNU General Public License
        !            16:   along with this program; see the file COPYING; if not, write to the
        !            17:   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
        !            18:   MA 02110-1301 USA
        !            19:   
        !            20:   $QuaggaId: $Format:%an, %ai, %h$ $
        !            21: */
        !            22: 
        !            23: #include <stdlib.h>
        !            24: #include <stdio.h>
        !            25: #include <errno.h>
        !            26: #include <string.h>
        !            27: #include <unistd.h>
        !            28: #include <sys/types.h>
        !            29: #include <sys/socket.h>
        !            30: #include <net/if.h>
        !            31: #include <arpa/inet.h>
        !            32: 
        !            33: #include "pim_igmp_join.h"
        !            34: 
        !            35: const char *prog_name = 0;
        !            36: 
        !            37: static int iface_solve_index(const char *ifname)
        !            38: {
        !            39:   struct if_nameindex *ini;
        !            40:   ifindex_t ifindex = -1;
        !            41:   int i;
        !            42: 
        !            43:   if (!ifname)
        !            44:     return -1;
        !            45: 
        !            46:   ini = if_nameindex();
        !            47:   if (!ini) {
        !            48:     int err = errno;
        !            49:     fprintf(stderr,
        !            50:            "%s: interface=%s: failure solving index: errno=%d: %s\n",
        !            51:            prog_name, ifname, err, strerror(err));
        !            52:     errno = err;
        !            53:     return -1;
        !            54:   }
        !            55: 
        !            56:   for (i = 0; ini[i].if_index; ++i) {
        !            57: #if 0
        !            58:     fprintf(stderr,
        !            59:            "%s: interface=%s matching against local ifname=%s ifindex=%d\n",
        !            60:            prog_name, ifname, ini[i].if_name, ini[i].if_index);
        !            61: #endif
        !            62:     if (!strcmp(ini[i].if_name, ifname)) {
        !            63:       ifindex = ini[i].if_index;
        !            64:       break;
        !            65:     }
        !            66:   }
        !            67: 
        !            68:   if_freenameindex(ini);
        !            69: 
        !            70:   return ifindex;
        !            71: }
        !            72: 
        !            73: int main(int argc, const char *argv[])
        !            74: {
        !            75:   struct in_addr group_addr;
        !            76:   struct in_addr source_addr;
        !            77:   const char *ifname;
        !            78:   const char *group;
        !            79:   const char *source;
        !            80:   ifindex_t ifindex;
        !            81:   int result;
        !            82:   int fd;
        !            83: 
        !            84:   prog_name = argv[0];
        !            85: 
        !            86:   fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
        !            87:   if (fd < 0) {
        !            88:     fprintf(stderr,
        !            89:            "%s: could not create socket: socket(): errno=%d: %s\n",
        !            90:            prog_name, errno, strerror(errno));
        !            91:     exit(1);
        !            92:   }
        !            93: 
        !            94:   if (argc != 4) {
        !            95:     fprintf(stderr,
        !            96:            "usage:   %s interface group     source\n"
        !            97:            "example: %s eth0      232.1.1.1 1.1.1.1\n",
        !            98:            prog_name, prog_name);
        !            99:     exit(1);
        !           100:   }
        !           101: 
        !           102:   ifname = argv[1];
        !           103:   group  = argv[2];
        !           104:   source = argv[3];
        !           105: 
        !           106:   ifindex = iface_solve_index(ifname);
        !           107:   if (ifindex < 0) {
        !           108:     fprintf(stderr, "%s: could not find interface: %s\n",
        !           109:            prog_name, ifname);
        !           110:     exit(1);
        !           111:   }
        !           112: 
        !           113:   result = inet_pton(AF_INET, group, &group_addr);
        !           114:   if (result <= 0) {
        !           115:     fprintf(stderr, "%s: bad group address: %s\n",
        !           116:            prog_name, group);
        !           117:     exit(1);
        !           118:   }
        !           119: 
        !           120:   result = inet_pton(AF_INET, source, &source_addr);
        !           121:   if (result <= 0) {
        !           122:     fprintf(stderr, "%s: bad source address: %s\n",
        !           123:            prog_name, source);
        !           124:     exit(1);
        !           125:   }
        !           126: 
        !           127:   result = pim_igmp_join_source(fd, ifindex, group_addr, source_addr);
        !           128:   if (result) {
        !           129:     fprintf(stderr,
        !           130:            "%s: setsockopt(fd=%d) failure for IGMP group %s source %s ifindex %d on interface %s: errno=%d: %s\n",
        !           131:            prog_name, fd, group, source, ifindex, ifname,
        !           132:            errno, strerror(errno));
        !           133:     exit(1);
        !           134:   }
        !           135: 
        !           136:   printf("%s: joined channel (S,G)=(%s,%s) on interface %s\n",
        !           137:         prog_name, source, group, ifname);
        !           138: 
        !           139:   printf("%s: waiting...\n", prog_name);
        !           140: 
        !           141:   getchar();
        !           142: 
        !           143:   close(fd);
        !           144: 
        !           145:   printf("%s: left channel (S,G)=(%s,%s) on interface %s\n",
        !           146:         prog_name, source, group, ifname);
        !           147: 
        !           148:   exit(0);
        !           149: }