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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.3 by pajs, Fri May 10 21:32:38 2002 UTC vs.
Revision 1.26 by tdb, Wed May 29 19:41:59 2002 UTC

#	Line 1 | Line 1
1	+	/*
2	+	* i-scream central monitoring system
3	+	* http://www.i-scream.org.uk
4	+	* Copyright (C) 2000-2002 i-scream
5	+	*
6	+	* This program is free software; you can redistribute it and/or
7	+	* modify it under the terms of the GNU General Public License
8	+	* as published by the Free Software Foundation; either version 2
9	+	* of the License, or (at your option) any later version.
10	+	*
11	+	* This program is distributed in the hope that it will be useful,
12	+	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	+	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14	+	* GNU General Public License for more details.
15	+	*
16	+	* You should have received a copy of the GNU General Public License
17	+	* along with this program; if not, write to the Free Software
18	+	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19	+	*/
20	+
21	+	#ifdef HAVE_CONFIG_H
22	+	#include "config.h"
23	+	#endif
24	+
25		#include <stdio.h>
2	–	#include <sys/socket.h>
26		#include <stdlib.h>
27	+	#include <sys/types.h>
28		#include <unistd.h>
29		#include <syslog.h>
30		#include <netinet/in.h>
31	<	#include <ukcprog.h>
31	>	#include "ukcprog.h"
32		#include <netdb.h>
33	<	#include <strings.h>
33	>	#include <string.h>
34	>	#include "statgrab.h"
35	>	#include <time.h>
36	>	#include <sys/socket.h>
37	>	#include <arpa/inet.h>
38	>	#include <syslog.h>
39
40	+	#define RECONFIGURE_RETURN_CODE 2
41	+	#define UDP_MAX_PACKET_SIZE 8192
42	+	#define PID_FILE "/var/tmp/.ihost.pid"
43	+
44	+	#define logmessage(level, ...) do { cur_level = level; errf(__VA_ARGS__); } while (0)
45	+
46		typedef struct{
47		int fm_port;
48		char *fm_host;
49	<
49	>
50	>	char *my_ip;
51		char *my_fqdn;
52		char *server_fqdn;
53		int server_udp_port;
54		int server_tcp_port;
55	<	long last_modified;
55	>	char *last_modified;
56		char *files_list;
57		char *key;
58		int udp_update_time;
#	Line 24 | Line 60 | typedef struct{
60
61		}ihost_state_t;
62
63	<	char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){
63	>	static int log_level;
64	>	static int cur_level;
65	>	static int syslog_logging;
66	>
67	>	void log_errors(const char *message){
68	>	if(log_level>=cur_level){
69	>	if (syslog_logging==1){
70	>	syslog(cur_level, "%s\n", message);
71	>	}else{
72	>	fprintf(stderr, "%s\n", message);
73	>	}
74	>	}
75	>	}
76	>
77	>	char* sock_comm(FILE *f_r, FILE *f_w, char *sendString){
78		char *reply;
79	<	fprintf(f_w, "%s", sendString);
79	>	logmessage(LOG_DEBUG, "Sending %s",sendString);
80	>	fprintf(f_w, "%s\n", sendString);
81		fflush(f_w);
82		reply=fpgetline(f_r);
83	+	if (reply!=NULL) logmessage(LOG_DEBUG, "Received %s", reply);
84		/* Returns pointer to static buffer */
85		return reply;
86		}
#	Line 36 | Line 88 | char* sock_comm(FILE *f_r, FILE *f_w, char* sendString
88		int ihost_configure(ihost_state_t *ihost_state){
89		struct sockaddr_in addr;
90		struct in_addr haddr;
91	+	struct sockaddr ip;
92	+	int ip_len;
93		int sd;
94		FILE *fm_fd_r, *fm_fd_w;
95		char *reply;
96		char *reply_ptr;
97
98	+	/* Check to see if anything needs to be free'd */
99	+	if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn);
100	+	if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
101	+	if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
102	+	if (ihost_state->files_list!=NULL) free(ihost_state->files_list);
103	+
104	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->fm_host, ihost_state->fm_port);
105		if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
106	<	errf("Can't create AF_INET socket (%m)");
106	>	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
107		return -1;
108		}
109
110		if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
111	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
111	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->fm_host);
112		return -1;
113		}
114
115	<	memset((char *)&addr, 0, sizeof addr);
115	>	memset(&addr, 0, sizeof addr);
116		addr.sin_family = AF_INET;
117	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
117	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
118		addr.sin_port =  htons(ihost_state->fm_port);
119
120		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
121	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
121	>	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
122		return -1;
123		}
124
125		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
126		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
127	<	errf("Failed to open stream (%m)");
127	>	logmessage(LOG_ERR, "Failed to open read stream (%m)");
128		return -1;
129		}
130
131		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
132	<	errf("Failed to open stream (%m)");
132	>	logmessage(LOG_ERR, "Failed to open write stream (%m)");
133		return -1;
134		}
135	+	ip_len=sizeof ip;
136	+	memset(&ip, 0, ip_len);
137	+	if((getsockname(sd, &ip, &ip_len)) != 0){
138	+	logmessage(LOG_ERR, "Failed to get IP address (%m)");
139	+	return -1;
140	+	}
141	+	if (ip.sa_family!=AF_INET){
142	+	logmessage(LOG_ERR, "sa family is wrong type");
143	+	return -1;
144	+	}
145
146	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
146	>	if(ihost_state->my_ip!=NULL) free(ihost_state->my_ip);
147	>	if((ihost_state->my_ip=strdup(inet_ntoa(((struct sockaddr_in *)&ip)->sin_addr)))==NULL){
148	>	logmessage(LOG_ERR, "Failed to get IP (%m)");
149	>	return -1;
150	>	}
151	>
152	>	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
153		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
154	<	errf("Server error");
154	>	logmessage(LOG_ERR, "Server error on STARTCONFIG");
155		return -1;
156		}
157
158	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
158	>	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED");
159		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
160	<	errf("Server error (%m)");
160	>	logmessage(LOG_ERR, "Server error on LASTMODIFIED (%m)");
161		return -1;
162		}
163	<	ihost_state->last_modified=atol(reply);
164	<
165	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
163	>	if((ihost_state->last_modified=strdup(reply)) == NULL){
164	>	logmessage(LOG_ERR, "strdup failed (%m)");
165	>	return -1;
166	>	}
167	>
168	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
169		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
170	<	errf("Server error (%m)");
170	>	logmessage(LOG_ERR, "Server error on FILELIST (%m)");
171		return -1;
172		}
173	<	if((ihost_state->files_list=strdup(reply)) == NULL){
174	<	errf("strdup failed (%m)");
175	<	return -1;
176	<	}
173	>	if((ihost_state->files_list=strdup(reply)) == NULL){
174	>	logmessage(LOG_ERR, "strdup failed (%m)");
175	>	return -1;
176	>	}
177
178	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
178	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN");
179		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
180	<	errf("Server error (%m)");
180	>	logmessage(LOG_ERR, "Server error on FQDN (%m)");
181		return -1;
182		}
183		if((ihost_state->my_fqdn=strdup(reply)) == NULL){
184	<	errf("strdup failed (%m)");
184	>	logmessage(LOG_ERR, "strdup failed (%m)");
185		return -1;
186		}
187
188	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
188	>	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
189		if(reply== NULL){
190	<	errf("Server error (%m)");
190	>	logmessage(LOG_ERR, "Server error (%m)");
191		return -1;
192		}
193		if (strncasecmp(reply, "ERROR", 5) != 0){
194		ihost_state->udp_update_time=atoi(reply);
195		}
196	<
197	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
196	>
197	>	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime");
198		if(reply== NULL){
199	<	errf("Server error (%m)");
199	>	logmessage(LOG_ERR, "Server error on TCPUpdateTime (%m)");
200		return -1;
201		}
202		if (strncasecmp(reply, "ERROR", 5) != 0){
203		ihost_state->tcp_update_time=atoi(reply);
204		}
205
206	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n");
206	>	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
207		if(reply== NULL){
208	<	errf("Server error (%m)");
208	>	logmessage(LOG_ERR, "Server error on ENDCONFIG (%m)");
209		return -1;
210		}
211
212	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
212	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
213		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
214	<	errf("Server error (%m)");
214	>	logmessage(LOG_ERR, "Server error FILTER failed (%m)");
215		return -1;
216		}
217		reply_ptr=strchr(reply,';');
218		if (reply_ptr==NULL){
219	<	errf("Incorrect data returned");
219	>	logmessage(LOG_ERR, "Incorrect data returned");
220		return -1;
221		}
222		*reply_ptr='\0';
223		if((ihost_state->server_fqdn=strdup(reply)) == NULL){
224	<	errf("strdup failed (%m)");
224	>	logmessage(LOG_ERR, "strdup failed (%m)");
225		return -1;
226		}
227	<	reply=++reply_ptr;
227	>	reply=reply_ptr + 1;
228		reply_ptr=strchr(reply,';');
229		if (reply_ptr==NULL){
230	<	errf("Incorrect data returned 2");
230	>	logmessage(LOG_ERR, "Incorrect data returned 2");
231		return -1;
232		}
233		*reply_ptr='\0';
234		ihost_state->server_udp_port=atoi(reply);
235	<	reply=++reply_ptr;
235	>	reply=reply_ptr+1;
236		ihost_state->server_tcp_port=atoi(reply);
237		if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
238	<	errf("Incorrect data returned 3 ");
238	>	logmessage(LOG_ERR, "Incorrect data returned 3 ");
239		return -1;
240		}
241
242	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
242	>	reply=sock_comm(fm_fd_r, fm_fd_w, "END");
243		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
244	<	errf("Server error (%m)");
244	>	logmessage(LOG_ERR, "Server error on END (%m)");
245		return -1;
246		}
247
248		if(fclose(fm_fd_r) !=0){
249	<	errf("Failed to close FD (%m)");
249	>	logmessage(LOG_ERR, "Failed to close read FD (%m)");
250		return -1;
251		}
252		if(fclose(fm_fd_w) !=0){
253	<	errf("Failed to close FD (%m)");
253	>	logmessage(LOG_ERR, "Failed to close write FD (%m)");
254		return -1;
255		}
256
257		return 0;
258		}
259
260	+	int heartbeat(ihost_state_t *ihost_state){
261	+	struct sockaddr_in addr;
262	+	struct in_addr haddr;
263	+	int sd;
264	+	FILE *fm_fd_r, *fm_fd_w;
265	+	char *reply;
266	+	int exitcode=0;
267	+
268	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->server_fqdn, ihost_state->server_tcp_port);
269	+	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
270	+	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
271	+	return -1;
272	+	}
273	+
274	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
275	+	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
276	+	return -1;
277	+	}
278	+
279	+	memset(&addr, 0, sizeof addr);
280	+	addr.sin_family = AF_INET;
281	+	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
282	+	addr.sin_port =  htons(ihost_state->server_tcp_port);
283	+
284	+	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
285	+	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->server_fqdn, ihost_state->server_tcp_port);
286	+	return -1;
287	+	}
288	+
289	+	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
290	+	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
291	+	logmessage(LOG_ERR, "Failed to open stream (%m)");
292	+	return -1;
293	+	}
294	+
295	+	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
296	+	logmessage(LOG_ERR, "Failed to open stream (%m)");
297	+	return -1;
298	+	}
299	+
300	+	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
301	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
302	+	logmessage(LOG_ERR, "Server error on HEARTBEAT");
303	+	return -1;
304	+	}
305	+
306	+	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
307	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
308	+	logmessage(LOG_ERR, "Server error on CONFIG");
309	+	return -1;
310	+	}
311	+
312	+	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
313	+	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
314	+	logmessage(LOG_ERR, "Server error on fileslist");
315	+	return -1;
316	+	}
317	+
318	+	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified);
319	+	if (reply==NULL) {
320	+	logmessage(LOG_ERR, "Server error NULL recieved on lastmodified");
321	+	return -1;
322	+	}
323	+	if (strncasecmp(reply, "ERROR", 5) == 0){
324	+	/* Means the config has changed */
325	+	logmessage(LOG_INFO, "Recieved ERROR from server for a reconfigure required");
326	+	exitcode=RECONFIGURE_RETURN_CODE;
327	+	}
328	+
329	+	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
330	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
331	+	logmessage(LOG_ERR, "Server error on KEY");
332	+	return -1;
333	+	}
334	+	if (ihost_state->key!=NULL) free(ihost_state->key);
335	+
336	+	if((ihost_state->key=strdup(reply)) == NULL){
337	+	logmessage(LOG_ERR, "strdup failed (%m)");
338	+	return -1;
339	+	}
340	+
341	+	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
342	+	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
343	+	logmessage(LOG_ERR, "Server error on ENDHEARTBEAT (%m)");
344	+	return -1;
345	+	}
346	+
347	+	fflush(fm_fd_r);
348	+	fflush(fm_fd_w);
349	+
350	+	if(fclose(fm_fd_r) !=0){
351	+	logmessage(LOG_ERR, "Failed to close read FD (%m)");
352	+	return -1;
353	+	}
354	+	if(fclose(fm_fd_w) !=0){
355	+	logmessage(LOG_ERR, "Failed to close write FD (%m)");
356	+	return -1;
357	+	}
358	+
359	+	return exitcode;
360	+	}
361	+
362	+	char *stat_grab(ihost_state_t *ihost_state, int counter){
363	+	#define NUM_STATS 9
364	+	char *stats[NUM_STATS];
365	+	char *xml_data=NULL;
366	+	char *xml_data_p;
367	+	int xml_size=0;
368	+	int x=0;
369	+
370	+	logmessage(LOG_DEBUG,"get_cpu_stats");
371	+	stats[0]=get_cpu_stats();
372	+	logmessage(LOG_DEBUG,"get_disk_stats");
373	+	stats[1]=get_disk_stats();
374	+	logmessage(LOG_DEBUG,"get_load_stats");
375	+	stats[2]=get_load_stats();
376	+	logmessage(LOG_DEBUG,"get_memory_stats");
377	+	stats[3]=get_memory_stats();
378	+	logmessage(LOG_DEBUG,"get_os_info");
379	+	stats[4]=get_os_info();
380	+	logmessage(LOG_DEBUG,"get_page_stats");
381	+	stats[5]=get_page_stats();
382	+	logmessage(LOG_DEBUG,"get_process_stats");
383	+	stats[6]=get_process_stats();
384	+	logmessage(LOG_DEBUG,"get_swap_stats");
385	+	stats[7]=get_swap_stats();
386	+	logmessage(LOG_DEBUG,"get_user_stats");
387	+	stats[8]=get_user_stats();
388	+
389	+
390	+	for(x=0;x<NUM_STATS;x++){
391	+	if(stats[x]==NULL){
392	+	logmessage(LOG_ERR,"Function returned NULL");
393	+	return NULL;
394	+	}
395	+	xml_size+=strlen(stats[x]);
396	+	}
397	+
398	+	xml_data=malloc(xml_size+1);
399	+	xml_data=strcpy(xml_data, stats[0]);
400	+	free(stats[0]);
401	+	for(x=1;x<NUM_STATS;x++){
402	+	strcat(xml_data, stats[x]);
403	+	free(stats[x]);
404	+	}
405	+
406	+	xml_data_p=xml_data;
407	+	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);
408	+	free(xml_data_p);
409	+
410	+	logmessage(LOG_DEBUG,"Generated XML Data of : %s", xml_data);
411	+	return xml_data;
412	+	}
413	+
414	+	int send_stats(ihost_state_t *ihost_state, char *data_stream){
415	+	struct sockaddr_in addr;
416	+	struct in_addr haddr;
417	+
418	+	int sd;
419	+	size_t len;
420	+
421	+	len=strlen(data_stream);
422	+	if(len>UDP_MAX_PACKET_SIZE){
423	+	logmessage(LOG_ERR, "Too big to send to server. Please reconfigure client and server and recompile");
424	+	exit(1);
425	+	}
426	+	logmessage(LOG_DEBUG,"Resolving IP of server");
427	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
428	+	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
429	+	return -1;
430	+	}
431	+	logmessage(LOG_DEBUG,"Creating UDP socket to %s on %d",ihost_state->server_fqdn, ihost_state->server_udp_port);
432	+	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
433	+	logmessage(LOG_ERR, "failed to create UDP socket (%m)");
434	+	return -1;
435	+	}
436	+
437	+	memset(&addr, 0, sizeof(addr));
438	+	addr.sin_family=AF_INET;
439	+	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
440	+	addr.sin_port =  htons(ihost_state->server_udp_port);
441	+
442	+	logmessage(LOG_INFO,"Sending packet : %s", data_stream);
443	+	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
444	+	logmessage(LOG_ERR, "Send the wrong number of bytes (%m)");
445	+	return -1;
446	+	}
447	+
448	+	close(sd);
449	+
450	+	return 0;
451	+	}
452	+
453	+	void usage(char *progname){
454	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
455	+	fprintf(stderr, "Options\n");
456	+	fprintf(stderr, "  -v           Verbose, the more v flags the more verbose, eg -vv\n");
457	+	fprintf(stderr, "  -d           Daemon mode, self backgrounding\n");
458	+	fprintf(stderr, "  -s           Send errors to syslog\n");
459	+	fprintf(stderr, "  -V           Print version number\n");
460	+	fprintf(stderr, "  -h           Prints this help page\n");
461	+	exit(1);
462	+	}
463	+
464		int main(int argc, char **argv){
465		ihost_state_t ihost_state;
466	+	int heartbeat_exit;
467	+	int counter=0;
468	+	long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0;
469	+	int sleep_delay=0;
470	+	char *xml_stats;
471	+	pid_t pid;
472	+	int cmdopt;
473	+	extern int optind;
474	+	int verbose=0, daemon=0;
475	+	extern int syslog_logging;
476	+	extern int log_level;
477	+	extern int cur_level;
478	+	FILE *f;
479	+
480	+	log_level=1;
481	+	cur_level=1;
482	+	syslog_logging=0;
483	+
484	+	errf_set_ofunc(log_errors);
485	+	/* NULL'ify so i can tell if i need to free it or not */
486	+	ihost_state.fm_host=NULL;
487	+	ihost_state.my_fqdn=NULL;
488	+	ihost_state.server_fqdn=NULL;
489	+	ihost_state.last_modified=NULL;
490	+	ihost_state.files_list=NULL;
491	+	ihost_state.key=NULL;
492	+	ihost_state.my_ip=NULL;
493	+
494		errf_set_progname(argv[0]);
495	<	if(argc!=3){
496	<	errf_usage("<host> <port>");
495	>
496	>
497	>	while((cmdopt=getopt(argc, argv, "vdshV")) != -1){
498	>	switch(cmdopt){
499	>	case 'v':
500	>	verbose++;
501	>	break;
502	>
503	>	case 'd':
504	>	/* Force syslog logging since stderr will be closed in this case */
505	>	syslog_logging=1;
506	>	daemon=1;
507	>	break;
508	>
509	>	case 's':
510	>	syslog_logging=1;
511	>	break;
512	>
513	>	case 'h':
514	>	usage(argv[0]);
515	>	break;
516	>
517	>	case 'V':
518	>	errf("%s version %s",argv[0], VERSION);
519	>	break;
520	>
521	>	default:
522	>	usage(argv[0]);
523	>	exit(1);
524	>	}
525	>	}
526	>
527	>	if(argc!=optind+2){
528	>	usage(argv[0]);
529		exit(1);
530		}
531	+	ihost_state.fm_host=argv[optind];
532	+	ihost_state.fm_port=atoi(argv[optind+1]);
533	+	if(ihost_state.fm_port==0){
534	+	errf("Invalid port number");
535	+	usage(argv[0]);
536	+	}
537
538	<	ihost_state.fm_host=argv[1];
539	<	ihost_state.fm_port=atoi(argv[2]);
538	>	if(daemon==1){
539	>	pid=fork();
540	>	if(pid==-1){
541	>	errf("Fork failed, can't background. Exiting");
542	>	exit(1);
543	>	}else if(pid!=0){
544	>	/* Parent process */
545	>	return 0;
546	>	}
547	>	/* We should now be in the background*/
548	>	if(setsid()==-1){
549	>	errf("setsid failed (%m)");
550	>	exit(1);
551	>	}
552	>	fclose(stdin);
553	>	fclose(stdout);
554	>	fclose(stderr);
555	>	}
556
557	+	if(syslog_logging==1){
558	+	openlog(errf_get_progname(),0,LOG_ERR);
559	+	setlogmask(LOG_UPTO(LOG_DEBUG));
560	+	}
561	+
562	+	switch(verbose){
563	+	case 0:
564	+	/* Critical errors + */
565	+	log_level=LOG_ERR;
566	+	break;
567	+	case 1:
568	+	/* Recoverable errors */
569	+	log_level=LOG_WARNING;
570	+	break;
571	+	case 2:
572	+	/* Print stuff like the XML packets */
573	+	log_level=LOG_INFO;
574	+	break;
575	+	default:
576	+	/* Must have lots of v's */
577	+	/* Print out everything its doing */
578	+	log_level=LOG_DEBUG;
579	+	break;
580	+	}
581	+
582	+	logmessage(LOG_DEBUG,"Writing PID FILE");
583	+	pid=getpid();
584	+	if((f=fopen(PID_FILE,"w")) == NULL){
585	+	logmessage(LOG_WARNING, "Failed to write PID file (%m)");
586	+	}else{
587	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
588	+	logmessage(LOG_WARNING, "Failed to write PID file (%m)");
589	+	}
590	+	if((fclose(f))!=0){
591	+	logmessage(LOG_ERR, "failed to close PID file");
592	+	exit(1);
593	+	}
594	+	}
595	+
596		if(ihost_configure(&ihost_state)!=0){
597	<	errf("configure failed");
597	>	logmessage(LOG_ERR,"configure failed");
598	>	/* Ok, ideally we prob should have 2 copies of the structure and carry on if this
599	>	happens.. But we dont :) (at the moment) */
600	>	exit(1);
601		}
602
603	+	for(;;){
604	+	cur_time=time(NULL);
605	+	if(cur_time>=tcp_time){
606	+	logmessage(LOG_DEBUG,"Sending heartbeat");
607	+	heartbeat_exit=heartbeat(&ihost_state);
608	+	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
609	+	logmessage(LOG_INFO,"heartbeat needs to be reconfigured");
610	+	ihost_configure(&ihost_state);
611	+	udp_time=0;
612	+	}
613	+	if(heartbeat_exit==-1){
614	+	logmessage(LOG_ERR,"Heartbeat failed");
615	+	exit(1);
616	+	}
617	+	tcp_time=time(NULL)+ihost_state.tcp_update_time;
618	+	logmessage(LOG_DEBUG,"next tcp time should be %d", tcp_time);
619	+	}
620	+
621	+	if(cur_time>=udp_time){
622	+	logmessage(LOG_DEBUG,"Sending udp data");
623	+	/* Work out how long it takes to get the stats for next time round
624	+	so the sleep time can be adjusted accordingly */
625	+	stat_grab_time=time(NULL);
626	+	if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){
627	+	logmessage(LOG_ERR,"Failed to get stats (%m)");
628	+	exit(1);
629	+	}
630	+	stat_grab_time=time(NULL)-stat_grab_time;
631	+	send_stats(&ihost_state, xml_stats);
632	+	free(xml_stats);
633	+	udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time;
634	+	logmessage(LOG_DEBUG,"next udp time should be %d", udp_time);
635	+	}
636	+
637	+	if(tcp_time<udp_time){
638	+	sleep_delay=tcp_time-time(NULL);
639	+	}else{
640	+	sleep_delay=udp_time-time(NULL);
641	+	}
642	+	logmessage(LOG_DEBUG,"Sleeping for %d", sleep_delay);
643	+	if(sleep_delay>0) sleep(sleep_delay);
644	+	}
645		return 0;
646		}
647

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