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/*
simple smnotify tool
Copyright (C) Ronnie Sahlberg 2007
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include "smnotify.h"
#include "popt.h"
static char *client = NULL;
static const char *ip = NULL;
static char *server = NULL;
static int stateval = 0;
static int clientport = 0;
static int sendport = 0;
static void useage(void)
{
exit(0);
}
static int create_socket(const char *addr, int port)
{
int s;
struct sockaddr_in sock_in;
s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (s == -1) {
printf("Failed to open local socket\n");
exit(10);
}
bzero(&sock_in, sizeof(sock_in));
sock_in.sin_family = AF_INET;
sock_in.sin_port = htons(port);
inet_aton(addr, &sock_in.sin_addr);
if (bind(s, (struct sockaddr *)&sock_in, sizeof(sock_in)) == -1) {
printf("Failed to bind to local socket\n");
exit(10);
}
return s;
}
int main(int argc, const char *argv[])
{
struct poptOption popt_options[] = {
POPT_AUTOHELP
{ "client", 'c', POPT_ARG_STRING, &client, 0, "remote client to send the notify to", "hostname/ip" },
{ "clientport", 0, POPT_ARG_INT, &clientport, 0, "clientport", "integer" },
{ "ip", 'i', POPT_ARG_STRING, &ip, 0, "local ip address to send the notification from", "ip" },
{ "sendport", 0, POPT_ARG_INT, &sendport, 0, "port to send the notify from", "integer" },
{ "server", 's', POPT_ARG_STRING, &server, 0, "servername to use in the notification", "hostname/ip" },
{ "stateval", 0, POPT_ARG_INT, &stateval, 0, "stateval", "integer" },
POPT_TABLEEND
};
int opt;
poptContext pc;
CLIENT *clnt;
int s;
struct sockaddr_in sock_cl;
struct timeval w;
struct status st;
pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
default:
fprintf(stderr, "Invalid option %s: %s\n",
poptBadOption(pc, 0), poptStrerror(opt));
exit(1);
}
}
if (client == NULL) {
printf("ERROR: client not specified\n");
useage();
}
if (ip == NULL) {
printf("ERROR: ip not specified\n");
useage();
}
if (server == NULL) {
printf("ERROR: server not specified\n");
useage();
}
if (stateval == 0) {
printf("ERROR: stateval not specified\n");
useage();
}
/* Since we want to control from which address these packets are
sent we must create the socket ourself and use low-level rpc
calls.
*/
s = create_socket(ip, sendport);
/* only wait for at most 3 seconds before giving up */
alarm(3);
/* Setup a sockaddr_in for the client we want to notify */
bzero(&sock_cl, sizeof(sock_cl));
sock_cl.sin_family = AF_INET;
sock_cl.sin_port = htons(clientport);
inet_aton(client, &sock_cl.sin_addr);
w.tv_sec = 1;
w.tv_usec= 0;
clnt = clntudp_create(&sock_cl, 100024, 1, w, &s);
if (clnt == NULL) {
printf("ERROR: failed to connect to client\n");
exit(10);
}
/* we don't want to wait for any reply */
w.tv_sec = 0;
w.tv_usec = 0;
clnt_control(clnt, CLSET_TIMEOUT, (char *)&w);
st.mon_name=server;
st.state=stateval;
sm_notify_1(&st, clnt);
return 0;
}
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