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root/i-scream/projects/cms/source/ihost/ihost.c

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.1 by pajs, Fri May 10 17:11:30 2002 UTC vs.
Revision 1.22 by pajs, Tue May 21 16:04:34 2002 UTC

#	Line 1 | Line 1
1	+	/*
2	+	* i-scream central monitoring system
3	+	* Copyright (C) 2000-2002 i-scream
4	+	*
5	+	* This program is free software; you can redistribute it and/or
6	+	* modify it under the terms of the GNU General Public License
7	+	* as published by the Free Software Foundation; either version 2
8	+	* of the License, or (at your option) any later version.
9	+	*
10	+	* This program is distributed in the hope that it will be useful,
11	+	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	+	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13	+	* GNU 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; if not, write to the Free Software
17	+	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18	+	*/
19	+
20		#include <stdio.h>
2	–	#include <sys/socket.h>
21		#include <stdlib.h>
22	+	#include <sys/types.h>
23		#include <unistd.h>
24		#include <syslog.h>
25		#include <netinet/in.h>
26	<	#include <ukcprog.h>
26	>	#include "ukcprog.h"
27		#include <netdb.h>
28	<	#include <strings.h>
28	>	#include <string.h>
29	>	#include "statgrab.h"
30	>	#include <time.h>
31	>	#include <sys/socket.h>
32	>	#include <arpa/inet.h>
33	>	#include <syslog.h>
34
35	+	#define VERSION_NO "0.8"
36	+	#define RECONFIGURE_RETURN_CODE 2
37	+	#define UDP_MAX_PACKET_SIZE 8192
38	+	#define PID_FILE "/var/tmp/.ihost.pid"
39	+
40	+	#define logmessage(level, ...) do { cur_level = level; errf(__VA_ARGS__); } while (0)
41	+
42		typedef struct{
43		int fm_port;
44		char *fm_host;
45	<
45	>
46	>	char *my_ip;
47		char *my_fqdn;
48		char *server_fqdn;
49		int server_udp_port;
50		int server_tcp_port;
51	<	long last_modified;
51	>	char *last_modified;
52		char *files_list;
53		char *key;
54		int udp_update_time;
#	Line 24 | Line 56 | typedef struct{
56
57		}ihost_state_t;
58
59	<	char* sock_comm(FILE *f, char* sendString){
60	<	char *reply;
59	>	static int log_level;
60	>	static int cur_level;
61	>	static int syslog_logging;
62
63	<	fprintf(f, sendString);
64	<	fflush(f);
65	<	reply=fpgetline(f);
63	>	void log_errors(const char *message){
64	>	if(log_level>=cur_level){
65	>	if (syslog_logging==1){
66	>	syslog(cur_level, "%s\n", message);
67	>	}else{
68	>	fprintf(stderr, "%s\n", message);
69	>	}
70	>	}
71	>	}
72	>
73	>	char* sock_comm(FILE *f_r, FILE *f_w, char *sendString){
74	>	char *reply;
75	>	logmessage(LOG_DEBUG, "Sending %s",sendString);
76	>	fprintf(f_w, "%s\n", sendString);
77	>	fflush(f_w);
78	>	reply=fpgetline(f_r);
79	>	if (reply!=NULL) logmessage(LOG_DEBUG, "Received %s", reply);
80		/* Returns pointer to static buffer */
81		return reply;
82		}
#	Line 37 | Line 84 | char* sock_comm(FILE *f, char* sendString){
84		int ihost_configure(ihost_state_t *ihost_state){
85		struct sockaddr_in addr;
86		struct in_addr haddr;
87	+	struct sockaddr ip;
88	+	int ip_len;
89		int sd;
90	<	FILE *fm_fd;
90	>	FILE *fm_fd_r, *fm_fd_w;
91		char *reply;
92	+	char *reply_ptr;
93
94	+	/* Check to see if anything needs to be free'd */
95	+	if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn);
96	+	if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
97	+	if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
98	+	if (ihost_state->files_list!=NULL) free(ihost_state->files_list);
99	+
100	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->fm_host, ihost_state->fm_port);
101		if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
102	<	errf("Can't create AF_INET socket (%m)");
102	>	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
103		return -1;
104		}
105
106		if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
107	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
107	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->fm_host);
108		return -1;
109		}
110
111	<	memset((char *)&addr, 0, sizeof addr);
111	>	memset(&addr, 0, sizeof addr);
112		addr.sin_family = AF_INET;
113	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
113	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
114		addr.sin_port =  htons(ihost_state->fm_port);
115
116		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
117	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
117	>	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
118		return -1;
119		}
120
121	<	if ((fm_fd=fdopen(sd,"r+")) == NULL){
122	<	errf("Failed to open stream (%m)");
121	>	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
122	>	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
123	>	logmessage(LOG_ERR, "Failed to open read stream (%m)");
124		return -1;
125		}
126	<
127	<	reply=sock_comm(fm_fd, "STARTCONFIG\n");
128	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
71	<	errf("Server error");
126	>
127	>	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
128	>	logmessage(LOG_ERR, "Failed to open write stream (%m)");
129		return -1;
130		}
131	<
132	<	reply=sock_comm(fm_fd, "LASTMODIFIED\n");
133	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
134	<	errf("Server error (%m)");
131	>	ip_len=sizeof ip;
132	>	memset(&ip, 0, ip_len);
133	>	if((getsockname(sd, &ip, &ip_len)) != 0){
134	>	logmessage(LOG_ERR, "Failed to get IP address (%m)");
135		return -1;
136		}
137	<	ihost_state->last_modified=atol(reply);
137	>	if (ip.sa_family!=AF_INET){
138	>	logmessage(LOG_ERR, "sa family is wrong type");
139	>	return -1;
140	>	}
141
142	<	reply=sock_comm(fm_fd, "FILELIST\n");
143	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
84	<	errf("Server error (%m)");
142	>	if((ihost_state->my_ip=strdup(inet_ntoa(((struct sockaddr_in *)&ip)->sin_addr)))==NULL){
143	>	logmessage(LOG_ERR, "Failed to get IP (%m)");
144		return -1;
145	+	}
146	+
147	+	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
148	+	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
149	+	logmessage(LOG_ERR, "Server error on STARTCONFIG");
150	+	return -1;
151		}
152	<	if((ihost_state->files_list=strdup(reply)) == NULL){
153	<	errf("strdup failed (%m)");
152	>
153	>	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED");
154	>	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
155	>	logmessage(LOG_ERR, "Server error on LASTMODIFIED (%m)");
156		return -1;
157		}
158	+	if((ihost_state->last_modified=strdup(reply)) == NULL){
159	+	logmessage(LOG_ERR, "strdup failed (%m)");
160	+	return -1;
161	+	}
162
163	<	reply=sock_comm(fm_fd, "FQDN\n");
164	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
165	<	errf("Server error (%m)");
163	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
164	>	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
165	>	logmessage(LOG_ERR, "Server error on FILELIST (%m)");
166		return -1;
167		}
168	+	if((ihost_state->files_list=strdup(reply)) == NULL){
169	+	logmessage(LOG_ERR, "strdup failed (%m)");
170	+	return -1;
171	+	}
172	+
173	+	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN");
174	+	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
175	+	logmessage(LOG_ERR, "Server error on FQDN (%m)");
176	+	return -1;
177	+	}
178		if((ihost_state->my_fqdn=strdup(reply)) == NULL){
179	<	errf("strdup failed (%m)");
179	>	logmessage(LOG_ERR, "strdup failed (%m)");
180		return -1;
181		}
182
183	<	reply=sock_comm(fm_fd, "UDPUpdateTime\n");
183	>	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
184		if(reply== NULL){
185	<	errf("Server error (%m)");
185	>	logmessage(LOG_ERR, "Server error (%m)");
186		return -1;
187		}
188		if (strncasecmp(reply, "ERROR", 5) != 0){
189		ihost_state->udp_update_time=atoi(reply);
190		}
191	<
192	<	reply=sock_comm(fm_fd, "TCPUpdateTime\n");
191	>
192	>	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime");
193		if(reply== NULL){
194	<	errf("Server error (%m)");
194	>	logmessage(LOG_ERR, "Server error on TCPUpdateTime (%m)");
195		return -1;
196		}
197		if (strncasecmp(reply, "ERROR", 5) != 0){
198		ihost_state->tcp_update_time=atoi(reply);
199		}
200
201	<	reply=sock_comm(fm_fd, "ENDCONFIG\n");
201	>	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
202		if(reply== NULL){
203	<	errf("Server error (%m)");
203	>	logmessage(LOG_ERR, "Server error on ENDCONFIG (%m)");
204		return -1;
205		}
206
207	<
207	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
208	>	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
209	>	logmessage(LOG_ERR, "Server error FILTER failed (%m)");
210	>	return -1;
211	>	}
212	>	reply_ptr=strchr(reply,';');
213	>	if (reply_ptr==NULL){
214	>	logmessage(LOG_ERR, "Incorrect data returned");
215	>	return -1;
216	>	}
217	>	*reply_ptr='\0';
218	>	if((ihost_state->server_fqdn=strdup(reply)) == NULL){
219	>	logmessage(LOG_ERR, "strdup failed (%m)");
220	>	return -1;
221	>	}
222	>	reply=reply_ptr + 1;
223	>	reply_ptr=strchr(reply,';');
224	>	if (reply_ptr==NULL){
225	>	logmessage(LOG_ERR, "Incorrect data returned 2");
226	>	return -1;
227	>	}
228	>	*reply_ptr='\0';
229	>	ihost_state->server_udp_port=atoi(reply);
230	>	reply=reply_ptr+1;
231	>	ihost_state->server_tcp_port=atoi(reply);
232	>	if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
233	>	logmessage(LOG_ERR, "Incorrect data returned 3 ");
234	>	return -1;
235	>	}
236
237	+	reply=sock_comm(fm_fd_r, fm_fd_w, "END");
238	+	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
239	+	logmessage(LOG_ERR, "Server error on END (%m)");
240	+	return -1;
241	+	}
242
243	+	if(fclose(fm_fd_r) !=0){
244	+	logmessage(LOG_ERR, "Failed to close read FD (%m)");
245	+	return -1;
246	+	}
247	+	if(fclose(fm_fd_w) !=0){
248	+	logmessage(LOG_ERR, "Failed to close write FD (%m)");
249	+	return -1;
250	+	}
251	+
252		return 0;
253	+	}
254
255	+	int heartbeat(ihost_state_t *ihost_state){
256	+	struct sockaddr_in addr;
257	+	struct in_addr haddr;
258	+	int sd;
259	+	FILE *fm_fd_r, *fm_fd_w;
260	+	char *reply;
261	+	int exitcode=0;
262	+
263	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->server_fqdn, ihost_state->server_tcp_port);
264	+	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
265	+	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
266	+	return -1;
267	+	}
268	+
269	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
270	+	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
271	+	return -1;
272	+	}
273	+
274	+	memset(&addr, 0, sizeof addr);
275	+	addr.sin_family = AF_INET;
276	+	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
277	+	addr.sin_port =  htons(ihost_state->server_tcp_port);
278	+
279	+	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
280	+	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->server_fqdn, ihost_state->server_tcp_port);
281	+	return -1;
282	+	}
283	+
284	+	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
285	+	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
286	+	logmessage(LOG_ERR, "Failed to open stream (%m)");
287	+	return -1;
288	+	}
289	+
290	+	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
291	+	logmessage(LOG_ERR, "Failed to open stream (%m)");
292	+	return -1;
293	+	}
294	+
295	+	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
296	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
297	+	logmessage(LOG_ERR, "Server error on HEARTBEAT");
298	+	return -1;
299	+	}
300	+
301	+	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
302	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
303	+	logmessage(LOG_ERR, "Server error on CONFIG");
304	+	return -1;
305	+	}
306	+
307	+	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
308	+	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
309	+	logmessage(LOG_ERR, "Server error on fileslist");
310	+	return -1;
311	+	}
312	+
313	+	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified);
314	+	if (reply==NULL) {
315	+	logmessage(LOG_ERR, "Server error NULL recieved on lastmodified");
316	+	return -1;
317	+	}
318	+	if (strncasecmp(reply, "ERROR", 5) == 0){
319	+	/* Means the config has changed */
320	+	logmessage(LOG_INFO, "Recieved ERROR from server for a reconfigure required");
321	+	exitcode=RECONFIGURE_RETURN_CODE;
322	+	}
323	+
324	+	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
325	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
326	+	logmessage(LOG_ERR, "Server error on KEY");
327	+	return -1;
328	+	}
329	+	if (ihost_state->key!=NULL) free(ihost_state->key);
330	+
331	+	if((ihost_state->key=strdup(reply)) == NULL){
332	+	logmessage(LOG_ERR, "strdup failed (%m)");
333	+	return -1;
334	+	}
335	+
336	+	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
337	+	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
338	+	logmessage(LOG_ERR, "Server error on ENDHEARTBEAT (%m)");
339	+	return -1;
340	+	}
341	+
342	+	fflush(fm_fd_r);
343	+	fflush(fm_fd_w);
344	+
345	+	if(fclose(fm_fd_r) !=0){
346	+	logmessage(LOG_ERR, "Failed to close read FD (%m)");
347	+	return -1;
348	+	}
349	+	if(fclose(fm_fd_w) !=0){
350	+	logmessage(LOG_ERR, "Failed to close write FD (%m)");
351	+	return -1;
352	+	}
353	+
354	+	return exitcode;
355		}
356
357	<	int main(){
357	>	char *stat_grab(ihost_state_t *ihost_state, int counter){
358	>	#define NUM_STATS 9
359	>	char *stats[NUM_STATS];
360	>	char *xml_data=NULL;
361	>	char *xml_data_p;
362	>	int xml_size=0;
363	>	int x=0;
364
365	+	logmessage(LOG_DEBUG,"get_cpu_stats");
366	+	stats[0]=get_cpu_stats();
367	+	logmessage(LOG_DEBUG,"get_disk_stats");
368	+	stats[1]=get_disk_stats();
369	+	logmessage(LOG_DEBUG,"get_load_stats");
370	+	stats[2]=get_load_stats();
371	+	logmessage(LOG_DEBUG,"get_memory_stats");
372	+	stats[3]=get_memory_stats();
373	+	logmessage(LOG_DEBUG,"get_os_info");
374	+	stats[4]=get_os_info();
375	+	logmessage(LOG_DEBUG,"get_page_stats");
376	+	stats[5]=get_page_stats();
377	+	logmessage(LOG_DEBUG,"get_process_stats");
378	+	stats[6]=get_process_stats();
379	+	logmessage(LOG_DEBUG,"get_swap_stats");
380	+	stats[7]=get_swap_stats();
381	+	logmessage(LOG_DEBUG,"get_user_stats");
382	+	stats[8]=get_user_stats();
383	+
384	+
385	+	for(x=0;x<NUM_STATS;x++){
386	+	if(stats[x]==NULL){
387	+	logmessage(LOG_ERR,"Function returned NULL");
388	+	return NULL;
389	+	}
390	+	xml_size+=strlen(stats[x]);
391	+	}
392	+
393	+	xml_data=malloc(xml_size+1);
394	+	xml_data=strcpy(xml_data, stats[0]);
395	+	free(stats[0]);
396	+	for(x=1;x<NUM_STATS;x++){
397	+	strcat(xml_data, stats[x]);
398	+	free(stats[x]);
399	+	}
400	+
401	+	xml_data_p=xml_data;
402	+	xml_data=strf("<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\" key=\"%s\">%s</packet>", counter, ihost_state->my_fqdn, time(NULL), ihost_state->my_ip, ihost_state->key, xml_data);
403	+	free(xml_data_p);
404	+
405	+	logmessage(LOG_DEBUG,"Generated XML Data of : %s", xml_data);
406	+	return xml_data;
407	+	}
408	+
409	+	int send_stats(ihost_state_t *ihost_state, char *data_stream){
410	+	struct sockaddr_in addr;
411	+	struct in_addr haddr;
412	+
413	+	int sd;
414	+	size_t len;
415	+
416	+	len=strlen(data_stream);
417	+	if(len>UDP_MAX_PACKET_SIZE){
418	+	logmessage(LOG_ERR, "Too big to send to server. Please reconfigure client and server and recompile");
419	+	exit(1);
420	+	}
421	+	logmessage(LOG_DEBUG,"Resolving IP of server");
422	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
423	+	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
424	+	return -1;
425	+	}
426	+	logmessage(LOG_DEBUG,"Creating UDP socket to %s on %d",ihost_state->server_fqdn, ihost_state->server_udp_port);
427	+	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
428	+	logmessage(LOG_ERR, "failed to create UDP socket (%m)");
429	+	return -1;
430	+	}
431	+
432	+	memset(&addr, 0, sizeof(addr));
433	+	addr.sin_family=AF_INET;
434	+	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
435	+	addr.sin_port =  htons(ihost_state->server_udp_port);
436	+
437	+	logmessage(LOG_INFO,"Sending packet : %s", data_stream);
438	+	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
439	+	logmessage(LOG_ERR, "Send the wrong number of bytes (%m)");
440	+	return -1;
441	+	}
442	+
443	+	close(sd);
444	+
445	+	return 0;
446	+	}
447	+
448	+	void usage(char *progname){
449	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
450	+	fprintf(stderr, "Options\n");
451	+	fprintf(stderr, "  -v           Verbose, the more v flags the more verbose, eg -vv\n");
452	+	fprintf(stderr, "  -d           Daemon mode, self backgrounding\n");
453	+	fprintf(stderr, "  -s           Send errors to syslog\n");
454	+	fprintf(stderr, "  -V           Print version number\n");
455	+	fprintf(stderr, "  -h           Prints this help page\n");
456	+	exit(1);
457	+	}
458	+
459	+	int main(int argc, char **argv){
460	+	ihost_state_t ihost_state;
461	+	int heartbeat_exit;
462	+	int counter=0;
463	+	long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0;
464	+	int sleep_delay=0;
465	+	char *xml_stats;
466	+	pid_t pid;
467	+	int cmdopt;
468	+	extern int optind;
469	+	int verbose=0, daemon=0;
470	+	extern int syslog_logging;
471	+	extern int log_level;
472	+	extern int cur_level;
473	+	FILE *f;
474	+
475	+	log_level=1;
476	+	cur_level=1;
477	+	syslog_logging=0;
478	+
479	+	errf_set_ofunc(log_errors);
480	+	/* NULL'ify so i can tell if i need to free it or not */
481	+	ihost_state.fm_host=NULL;
482	+	ihost_state.my_fqdn=NULL;
483	+	ihost_state.server_fqdn=NULL;
484	+	ihost_state.last_modified=NULL;
485	+	ihost_state.files_list=NULL;
486	+	ihost_state.key=NULL;
487	+
488	+	errf_set_progname(argv[0]);
489	+
490	+
491	+	while((cmdopt=getopt(argc, argv, "vdshV")) != -1){
492	+	switch(cmdopt){
493	+	case 'v':
494	+	verbose++;
495	+	break;
496	+
497	+	case 'd':
498	+	/* Force syslog logging since stderr will be closed in this case */
499	+	syslog_logging=1;
500	+	daemon=1;
501	+	break;
502	+
503	+	case 's':
504	+	syslog_logging=1;
505	+	break;
506	+
507	+	case 'h':
508	+	usage(argv[0]);
509	+	break;
510	+
511	+	case 'V':
512	+	errf("%s version %s",argv[0], VERSION_NO);
513	+	break;
514	+
515	+	default:
516	+	usage(argv[0]);
517	+	exit(1);
518	+	}
519	+	}
520	+
521	+	if(argc!=optind+2){
522	+	usage(argv[0]);
523	+	exit(1);
524	+	}
525	+	ihost_state.fm_host=argv[optind];
526	+	ihost_state.fm_port=atoi(argv[optind+1]);
527	+	if(ihost_state.fm_port==0){
528	+	errf("Invalid port number");
529	+	usage(argv[0]);
530	+	}
531	+
532	+	if(daemon==1){
533	+	pid=fork();
534	+	if(pid==-1){
535	+	errf("Fork failed, can't background. Exiting");
536	+	exit(1);
537	+	}else if(pid!=0){
538	+	/* Parent process */
539	+	return 0;
540	+	}
541	+	/* We should now be in the background*/
542	+	if(setsid()==-1){
543	+	errf("setsid failed (%m)");
544	+	exit(1);
545	+	}
546	+	fclose(stdin);
547	+	fclose(stdout);
548	+	fclose(stderr);
549	+	}
550	+
551	+	if(syslog_logging==1){
552	+	openlog(errf_get_progname(),0,LOG_ERR);
553	+	setlogmask(LOG_UPTO(LOG_DEBUG));
554	+	}
555	+
556	+	switch(verbose){
557	+	case 0:
558	+	/* Critical errors + */
559	+	log_level=LOG_ERR;
560	+	break;
561	+	case 1:
562	+	/* Recoverable errors */
563	+	log_level=LOG_WARNING;
564	+	break;
565	+	case 2:
566	+	/* Print stuff like the XML packets */
567	+	log_level=LOG_INFO;
568	+	break;
569	+	default:
570	+	/* Must have lots of v's */
571	+	/* Print out everything its doing */
572	+	log_level=LOG_DEBUG;
573	+	break;
574	+	}
575	+
576	+	logmessage(LOG_DEBUG,"Writing PID FILE");
577	+	pid=getpid();
578	+	if((f=fopen(PID_FILE,"w")) == NULL){
579	+	logmessage(LOG_WARNING, "Failed to write PID file");
580	+	}else{
581	+	if((fprintf(f,"%d",(int)pid)) > 0 ){
582	+	logmessage(LOG_WARNING, "Failed to write PID file");
583	+	}
584	+	if((fclose(f))!=0){
585	+	logmessage(LOG_ERR, "failed to close PID file");
586	+	exit(1);
587	+	}
588	+	}
589	+
590	+	if(ihost_configure(&ihost_state)!=0){
591	+	logmessage(LOG_ERR,"configure failed");
592	+	/* Ok, ideally we prob should have 2 copies of the structure and carry on if this
593	+	happens.. But we dont :) (at the moment) */
594	+	exit(1);
595	+	}
596	+
597	+	for(;;){
598	+	cur_time=time(NULL);
599	+	if(cur_time>=tcp_time){
600	+	logmessage(LOG_DEBUG,"Sending heartbeat");
601	+	heartbeat_exit=heartbeat(&ihost_state);
602	+	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
603	+	logmessage(LOG_INFO,"heartbeat needs to be reconfigured");
604	+	ihost_configure(&ihost_state);
605	+	udp_time=0;
606	+	}
607	+	if(heartbeat_exit==-1){
608	+	logmessage(LOG_ERR,"Heartbeat failed");
609	+	exit(1);
610	+	}
611	+	tcp_time=time(NULL)+ihost_state.tcp_update_time;
612	+	logmessage(LOG_DEBUG,"next tcp time should be %d", tcp_time);
613	+	}
614	+
615	+	if(cur_time>=udp_time){
616	+	logmessage(LOG_DEBUG,"Sending udp data");
617	+	/* Work out how long it takes to get the stats for next time round
618	+	so the sleep time can be adjusted accordingly */
619	+	stat_grab_time=time(NULL);
620	+	if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){
621	+	logmessage(LOG_ERR,"Failed to get stats (%m)");
622	+	exit(1);
623	+	}
624	+	stat_grab_time=time(NULL)-stat_grab_time;
625	+	send_stats(&ihost_state, xml_stats);
626	+	free(xml_stats);
627	+	udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time;
628	+	logmessage(LOG_DEBUG,"next udp time should be %d", udp_time);
629	+	}
630	+
631	+	if(tcp_time<udp_time){
632	+	sleep_delay=tcp_time-time(NULL);
633	+	}else{
634	+	sleep_delay=udp_time-time(NULL);
635	+	}
636	+	logmessage(LOG_DEBUG,"Sleeping for %d", sleep_delay);
637	+	if(sleep_delay>0) sleep(sleep_delay);
638	+	}
639		return 0;
640		}
641

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