/*
- PIM for Quagga
- Copyright (C) 2008 Everton da Silva Marques
-
- 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; see the file COPYING; if not, write to the
- Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- MA 02110-1301 USA
-
- $QuaggaId: $Format:%an, %ai, %h$ $
-*/
+ * PIM for Quagga
+ * Copyright (C) 2008 Everton da Silva Marques
+ *
+ * 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; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <zebra.h>
#include <stdlib.h>
#include <stdio.h>
#include <net/if.h>
#include <arpa/inet.h>
+#include "if.h"
#include "pim_igmp_join.h"
const char *prog_name = 0;
static int iface_solve_index(const char *ifname)
{
- struct if_nameindex *ini;
- int ifindex = -1;
- int i;
-
- if (!ifname)
- return -1;
-
- ini = if_nameindex();
- if (!ini) {
- int err = errno;
- fprintf(stderr,
- "%s: interface=%s: failure solving index: errno=%d: %s\n",
- prog_name, ifname, err, strerror(err));
- errno = err;
- return -1;
- }
-
- for (i = 0; ini[i].if_index; ++i) {
+ struct if_nameindex *ini;
+ ifindex_t ifindex = -1;
+ int i;
+
+ if (!ifname)
+ return -1;
+
+ ini = if_nameindex();
+ if (!ini) {
+ int err = errno;
+ fprintf(stderr,
+ "%s: interface=%s: failure solving index: errno=%d: %s\n",
+ prog_name, ifname, err, strerror(err));
+ errno = err;
+ return -1;
+ }
+
+ for (i = 0; ini[i].if_index; ++i) {
#if 0
fprintf(stderr,
"%s: interface=%s matching against local ifname=%s ifindex=%d\n",
prog_name, ifname, ini[i].if_name, ini[i].if_index);
#endif
- if (!strcmp(ini[i].if_name, ifname)) {
- ifindex = ini[i].if_index;
- break;
- }
- }
+ if (!strcmp(ini[i].if_name, ifname)) {
+ ifindex = ini[i].if_index;
+ break;
+ }
+ }
- if_freenameindex(ini);
+ if_freenameindex(ini);
- return ifindex;
+ return ifindex;
}
int main(int argc, const char *argv[])
{
- struct in_addr group_addr;
- struct in_addr source_addr;
- const char *ifname;
- const char *group;
- const char *source;
- int ifindex;
- int result;
- int fd;
-
- prog_name = argv[0];
-
- fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if (fd < 0) {
- fprintf(stderr,
- "%s: could not create socket: socket(): errno=%d: %s\n",
- prog_name, errno, strerror(errno));
- exit(1);
- }
-
- if (argc != 4) {
- fprintf(stderr,
- "usage: %s interface group source\n"
- "example: %s eth0 232.1.1.1 1.1.1.1\n",
- prog_name, prog_name);
- exit(1);
- }
-
- ifname = argv[1];
- group = argv[2];
- source = argv[3];
-
- ifindex = iface_solve_index(ifname);
- if (ifindex < 0) {
- fprintf(stderr, "%s: could not find interface: %s\n",
- prog_name, ifname);
- exit(1);
- }
-
- result = inet_pton(AF_INET, group, &group_addr);
- if (result <= 0) {
- fprintf(stderr, "%s: bad group address: %s\n",
- prog_name, group);
- exit(1);
- }
-
- result = inet_pton(AF_INET, source, &source_addr);
- if (result <= 0) {
- fprintf(stderr, "%s: bad source address: %s\n",
- prog_name, source);
- exit(1);
- }
-
- result = pim_igmp_join_source(fd, ifindex, group_addr, source_addr);
- if (result) {
- fprintf(stderr,
- "%s: setsockopt(fd=%d) failure for IGMP group %s source %s ifindex %d on interface %s: errno=%d: %s\n",
- prog_name, fd, group, source, ifindex, ifname,
- errno, strerror(errno));
- exit(1);
- }
-
- printf("%s: joined channel (S,G)=(%s,%s) on interface %s\n",
- prog_name, source, group, ifname);
-
- printf("%s: waiting...\n", prog_name);
-
- getchar();
-
- close(fd);
-
- printf("%s: left channel (S,G)=(%s,%s) on interface %s\n",
- prog_name, source, group, ifname);
-
- exit(0);
+ struct in_addr group_addr;
+ struct in_addr source_addr;
+ const char *ifname;
+ const char *group;
+ const char *source;
+ ifindex_t ifindex;
+ int result;
+ int fd;
+
+ prog_name = argv[0];
+
+ fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+ if (fd < 0) {
+ fprintf(stderr,
+ "%s: could not create socket: socket(): errno=%d: %s\n",
+ prog_name, errno, strerror(errno));
+ exit(1);
+ }
+
+ if (argc != 4) {
+ fprintf(stderr,
+ "usage: %s interface group source\n"
+ "example: %s eth0 232.1.1.1 1.1.1.1\n",
+ prog_name, prog_name);
+ exit(1);
+ }
+
+ ifname = argv[1];
+ group = argv[2];
+ source = argv[3];
+
+ ifindex = iface_solve_index(ifname);
+ if (ifindex < 0) {
+ fprintf(stderr, "%s: could not find interface: %s\n", prog_name,
+ ifname);
+ exit(1);
+ }
+
+ result = inet_pton(AF_INET, group, &group_addr);
+ if (result <= 0) {
+ fprintf(stderr, "%s: bad group address: %s\n", prog_name,
+ group);
+ exit(1);
+ }
+
+ result = inet_pton(AF_INET, source, &source_addr);
+ if (result <= 0) {
+ fprintf(stderr, "%s: bad source address: %s\n", prog_name,
+ source);
+ exit(1);
+ }
+
+ result = pim_igmp_join_source(fd, ifindex, group_addr, source_addr);
+ if (result) {
+ fprintf(stderr,
+ "%s: setsockopt(fd=%d) failure for IGMP group %s source %s ifindex %d on interface %s: errno=%d: %s\n",
+ prog_name, fd, group, source, ifindex, ifname, errno,
+ strerror(errno));
+ exit(1);
+ }
+
+ printf("%s: joined channel (S,G)=(%s,%s) on interface %s\n", prog_name,
+ source, group, ifname);
+
+ printf("%s: waiting...\n", prog_name);
+
+ if (getchar() == EOF)
+ fprintf(stderr, "getchar failure\n");
+
+ close(fd);
+
+ printf("%s: left channel (S,G)=(%s,%s) on interface %s\n", prog_name,
+ source, group, ifname);
+
+ exit(0);
}