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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.7 by pajs, Mon May 13 09:22:02 2002 UTC vs.
Revision 1.23 by tdb, Tue May 21 16:47:12 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		#include <stdio.h>
2	–	#include <sys/socket.h>
22		#include <stdlib.h>
23	+	#include <sys/types.h>
24		#include <unistd.h>
25		#include <syslog.h>
26		#include <netinet/in.h>
27	<	#include <ukcprog.h>
27	>	#include "ukcprog.h"
28		#include <netdb.h>
29	<	#include <strings.h>
29	>	#include <string.h>
30	>	#include "statgrab.h"
31	>	#include <time.h>
32	>	#include <sys/socket.h>
33	>	#include <arpa/inet.h>
34	>	#include <syslog.h>
35
36	+	#define VERSION_NO "0.8"
37		#define RECONFIGURE_RETURN_CODE 2
38	+	#define UDP_MAX_PACKET_SIZE 8192
39	+	#define PID_FILE "/var/tmp/.ihost.pid"
40
41	+	#define logmessage(level, ...) do { cur_level = level; errf(__VA_ARGS__); } while (0)
42	+
43		typedef struct{
44		int fm_port;
45		char *fm_host;
46	<
46	>
47	>	char *my_ip;
48		char *my_fqdn;
49		char *server_fqdn;
50		int server_udp_port;
#	Line 26 | Line 57 | typedef struct{
57
58		}ihost_state_t;
59
60	+	static int log_level;
61	+	static int cur_level;
62	+	static int syslog_logging;
63	+
64	+	void log_errors(const char *message){
65	+	if(log_level>=cur_level){
66	+	if (syslog_logging==1){
67	+	syslog(cur_level, "%s\n", message);
68	+	}else{
69	+	fprintf(stderr, "%s\n", message);
70	+	}
71	+	}
72	+	}
73	+
74		char* sock_comm(FILE *f_r, FILE *f_w, char *sendString){
75		char *reply;
76	+	logmessage(LOG_DEBUG, "Sending %s",sendString);
77		fprintf(f_w, "%s\n", sendString);
78		fflush(f_w);
79		reply=fpgetline(f_r);
80	+	if (reply!=NULL) logmessage(LOG_DEBUG, "Received %s", reply);
81		/* Returns pointer to static buffer */
82		return reply;
83		}
#	Line 38 | Line 85 | char* sock_comm(FILE *f_r, FILE *f_w, char *sendString
85		int ihost_configure(ihost_state_t *ihost_state){
86		struct sockaddr_in addr;
87		struct in_addr haddr;
88	+	struct sockaddr ip;
89	+	int ip_len;
90		int sd;
91		FILE *fm_fd_r, *fm_fd_w;
92		char *reply;
#	Line 49 | Line 98 | int ihost_configure(ihost_state_t *ihost_state){
98		if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
99		if (ihost_state->files_list!=NULL) free(ihost_state->files_list);
100
101	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->fm_host, ihost_state->fm_port);
102		if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
103	<	errf("Can't create AF_INET socket (%m)");
103	>	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
104		return -1;
105		}
106
107		if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
108	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
108	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->fm_host);
109		return -1;
110		}
111
112	<	memset((char *)&addr, 0, sizeof addr);
112	>	memset(&addr, 0, sizeof addr);
113		addr.sin_family = AF_INET;
114	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
114	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
115		addr.sin_port =  htons(ihost_state->fm_port);
116
117		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
118	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
118	>	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
119		return -1;
120		}
121
122		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
123		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
124	<	errf("Failed to open stream (%m)");
124	>	logmessage(LOG_ERR, "Failed to open read stream (%m)");
125		return -1;
126		}
127
128		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
129	<	errf("Failed to open stream (%m)");
129	>	logmessage(LOG_ERR, "Failed to open write stream (%m)");
130		return -1;
131		}
132	<
132	>	ip_len=sizeof ip;
133	>	memset(&ip, 0, ip_len);
134	>	if((getsockname(sd, &ip, &ip_len)) != 0){
135	>	logmessage(LOG_ERR, "Failed to get IP address (%m)");
136	>	return -1;
137	>	}
138	>	if (ip.sa_family!=AF_INET){
139	>	logmessage(LOG_ERR, "sa family is wrong type");
140	>	return -1;
141	>	}
142	>
143	>	if((ihost_state->my_ip=strdup(inet_ntoa(((struct sockaddr_in *)&ip)->sin_addr)))==NULL){
144	>	logmessage(LOG_ERR, "Failed to get IP (%m)");
145	>	return -1;
146	>	}
147	>
148		reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
149		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
150	<	errf("Server error");
150	>	logmessage(LOG_ERR, "Server error on STARTCONFIG");
151		return -1;
152		}
153
154		reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED");
155		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
156	<	errf("Server error (%m)");
156	>	logmessage(LOG_ERR, "Server error on LASTMODIFIED (%m)");
157		return -1;
158		}
159		if((ihost_state->last_modified=strdup(reply)) == NULL){
160	<	errf("strdup failed (%m)");
160	>	logmessage(LOG_ERR, "strdup failed (%m)");
161		return -1;
162		}
163	<
163	>
164		reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
165		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
166	<	errf("Server error (%m)");
166	>	logmessage(LOG_ERR, "Server error on FILELIST (%m)");
167		return -1;
168		}
169		if((ihost_state->files_list=strdup(reply)) == NULL){
170	<	errf("strdup failed (%m)");
170	>	logmessage(LOG_ERR, "strdup failed (%m)");
171		return -1;
172		}
173
174		reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN");
175		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
176	<	errf("Server error (%m)");
176	>	logmessage(LOG_ERR, "Server error on FQDN (%m)");
177		return -1;
178		}
179		if((ihost_state->my_fqdn=strdup(reply)) == NULL){
180	<	errf("strdup failed (%m)");
180	>	logmessage(LOG_ERR, "strdup failed (%m)");
181		return -1;
182		}
183
184		reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
185		if(reply== NULL){
186	<	errf("Server error (%m)");
186	>	logmessage(LOG_ERR, "Server error (%m)");
187		return -1;
188		}
189		if (strncasecmp(reply, "ERROR", 5) != 0){
190		ihost_state->udp_update_time=atoi(reply);
191		}
192	<
192	>
193		reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime");
194		if(reply== NULL){
195	<	errf("Server error (%m)");
195	>	logmessage(LOG_ERR, "Server error on TCPUpdateTime (%m)");
196		return -1;
197		}
198		if (strncasecmp(reply, "ERROR", 5) != 0){
#	Line 136 | Line 201 | int ihost_configure(ihost_state_t *ihost_state){
201
202		reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
203		if(reply== NULL){
204	<	errf("Server error (%m)");
204	>	logmessage(LOG_ERR, "Server error on ENDCONFIG (%m)");
205		return -1;
206		}
207
208		reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
209		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
210	<	errf("Server error (%m)");
210	>	logmessage(LOG_ERR, "Server error FILTER failed (%m)");
211		return -1;
212		}
213		reply_ptr=strchr(reply,';');
214		if (reply_ptr==NULL){
215	<	errf("Incorrect data returned");
215	>	logmessage(LOG_ERR, "Incorrect data returned");
216		return -1;
217		}
218		*reply_ptr='\0';
219		if((ihost_state->server_fqdn=strdup(reply)) == NULL){
220	<	errf("strdup failed (%m)");
220	>	logmessage(LOG_ERR, "strdup failed (%m)");
221		return -1;
222		}
223	<	reply=++reply_ptr;
223	>	reply=reply_ptr + 1;
224		reply_ptr=strchr(reply,';');
225		if (reply_ptr==NULL){
226	<	errf("Incorrect data returned 2");
226	>	logmessage(LOG_ERR, "Incorrect data returned 2");
227		return -1;
228		}
229		*reply_ptr='\0';
230		ihost_state->server_udp_port=atoi(reply);
231	<	reply=++reply_ptr;
231	>	reply=reply_ptr+1;
232		ihost_state->server_tcp_port=atoi(reply);
233		if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
234	<	errf("Incorrect data returned 3 ");
234	>	logmessage(LOG_ERR, "Incorrect data returned 3 ");
235		return -1;
236		}
237
238		reply=sock_comm(fm_fd_r, fm_fd_w, "END");
239		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
240	<	errf("Server error (%m)");
240	>	logmessage(LOG_ERR, "Server error on END (%m)");
241		return -1;
242		}
243
244		if(fclose(fm_fd_r) !=0){
245	<	errf("Failed to close FD (%m)");
245	>	logmessage(LOG_ERR, "Failed to close read FD (%m)");
246		return -1;
247		}
248		if(fclose(fm_fd_w) !=0){
249	<	errf("Failed to close FD (%m)");
249	>	logmessage(LOG_ERR, "Failed to close write FD (%m)");
250		return -1;
251		}
252
#	Line 196 | Line 261 | int heartbeat(ihost_state_t *ihost_state){
261		char *reply;
262		int exitcode=0;
263
264	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->server_fqdn, ihost_state->server_tcp_port);
265		if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
266	<	errf("Can't create AF_INET socket (%m)");
266	>	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
267		return -1;
268		}
269
270		if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
271	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
271	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
272		return -1;
273		}
274
275	<	memset((char *)&addr, 0, sizeof addr);
275	>	memset(&addr, 0, sizeof addr);
276		addr.sin_family = AF_INET;
277	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
277	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
278		addr.sin_port =  htons(ihost_state->server_tcp_port);
279
280		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
281	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
281	>	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->server_fqdn, ihost_state->server_tcp_port);
282		return -1;
283		}
284
285		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
286		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
287	<	errf("Failed to open stream (%m)");
287	>	logmessage(LOG_ERR, "Failed to open stream (%m)");
288		return -1;
289		}
290
291		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
292	<	errf("Failed to open stream (%m)");
292	>	logmessage(LOG_ERR, "Failed to open stream (%m)");
293		return -1;
294		}
295
296		reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
297		if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
298	<	errf("Server error");
298	>	logmessage(LOG_ERR, "Server error on HEARTBEAT");
299		return -1;
300		}
301	<	if (ihost_state->fm_host!=NULL) free(ihost_state->fm_host);
301	>
302		reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
303		if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
304	<	errf("Server error");
304	>	logmessage(LOG_ERR, "Server error on CONFIG");
305		return -1;
306		}
307
308		reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
309		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
310	<	errf("Server error");
310	>	logmessage(LOG_ERR, "Server error on fileslist");
311		return -1;
312		}
313
314		reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified);
315		if (reply==NULL) {
316	<	errf("Server error");
316	>	logmessage(LOG_ERR, "Server error NULL recieved on lastmodified");
317		return -1;
318		}
319		if (strncasecmp(reply, "ERROR", 5) == 0){
320		/* Means the config has changed */
321	+	logmessage(LOG_INFO, "Recieved ERROR from server for a reconfigure required");
322		exitcode=RECONFIGURE_RETURN_CODE;
323		}
324	+
325		reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
326		if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
327	<	errf("Server error");
327	>	logmessage(LOG_ERR, "Server error on KEY");
328		return -1;
329		}
330		if (ihost_state->key!=NULL) free(ihost_state->key);
331
332		if((ihost_state->key=strdup(reply)) == NULL){
333	<	errf("strdup failed (%m)");
333	>	logmessage(LOG_ERR, "strdup failed (%m)");
334		return -1;
335		}
336
337		reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
338		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
339	<	errf("Server error (%m)");
339	>	logmessage(LOG_ERR, "Server error on ENDHEARTBEAT (%m)");
340		return -1;
341		}
342
343	+	fflush(fm_fd_r);
344	+	fflush(fm_fd_w);
345	+
346		if(fclose(fm_fd_r) !=0){
347	<	errf("Failed to close FD (%m)");
347	>	logmessage(LOG_ERR, "Failed to close read FD (%m)");
348		return -1;
349		}
350		if(fclose(fm_fd_w) !=0){
351	<	errf("Failed to close FD (%m)");
351	>	logmessage(LOG_ERR, "Failed to close write FD (%m)");
352		return -1;
353		}
354
355		return exitcode;
356		}
357
358	+	char *stat_grab(ihost_state_t *ihost_state, int counter){
359	+	#define NUM_STATS 9
360	+	char *stats[NUM_STATS];
361	+	char *xml_data=NULL;
362	+	char *xml_data_p;
363	+	int xml_size=0;
364	+	int x=0;
365
366	+	logmessage(LOG_DEBUG,"get_cpu_stats");
367	+	stats[0]=get_cpu_stats();
368	+	logmessage(LOG_DEBUG,"get_disk_stats");
369	+	stats[1]=get_disk_stats();
370	+	logmessage(LOG_DEBUG,"get_load_stats");
371	+	stats[2]=get_load_stats();
372	+	logmessage(LOG_DEBUG,"get_memory_stats");
373	+	stats[3]=get_memory_stats();
374	+	logmessage(LOG_DEBUG,"get_os_info");
375	+	stats[4]=get_os_info();
376	+	logmessage(LOG_DEBUG,"get_page_stats");
377	+	stats[5]=get_page_stats();
378	+	logmessage(LOG_DEBUG,"get_process_stats");
379	+	stats[6]=get_process_stats();
380	+	logmessage(LOG_DEBUG,"get_swap_stats");
381	+	stats[7]=get_swap_stats();
382	+	logmessage(LOG_DEBUG,"get_user_stats");
383	+	stats[8]=get_user_stats();
384	+
385	+
386	+	for(x=0;x<NUM_STATS;x++){
387	+	if(stats[x]==NULL){
388	+	logmessage(LOG_ERR,"Function returned NULL");
389	+	return NULL;
390	+	}
391	+	xml_size+=strlen(stats[x]);
392	+	}
393	+
394	+	xml_data=malloc(xml_size+1);
395	+	xml_data=strcpy(xml_data, stats[0]);
396	+	free(stats[0]);
397	+	for(x=1;x<NUM_STATS;x++){
398	+	strcat(xml_data, stats[x]);
399	+	free(stats[x]);
400	+	}
401	+
402	+	xml_data_p=xml_data;
403	+	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);
404	+	free(xml_data_p);
405	+
406	+	logmessage(LOG_DEBUG,"Generated XML Data of : %s", xml_data);
407	+	return xml_data;
408	+	}
409	+
410	+	int send_stats(ihost_state_t *ihost_state, char *data_stream){
411	+	struct sockaddr_in addr;
412	+	struct in_addr haddr;
413	+
414	+	int sd;
415	+	size_t len;
416	+
417	+	len=strlen(data_stream);
418	+	if(len>UDP_MAX_PACKET_SIZE){
419	+	logmessage(LOG_ERR, "Too big to send to server. Please reconfigure client and server and recompile");
420	+	exit(1);
421	+	}
422	+	logmessage(LOG_DEBUG,"Resolving IP of server");
423	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
424	+	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
425	+	return -1;
426	+	}
427	+	logmessage(LOG_DEBUG,"Creating UDP socket to %s on %d",ihost_state->server_fqdn, ihost_state->server_udp_port);
428	+	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
429	+	logmessage(LOG_ERR, "failed to create UDP socket (%m)");
430	+	return -1;
431	+	}
432	+
433	+	memset(&addr, 0, sizeof(addr));
434	+	addr.sin_family=AF_INET;
435	+	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
436	+	addr.sin_port =  htons(ihost_state->server_udp_port);
437	+
438	+	logmessage(LOG_INFO,"Sending packet : %s", data_stream);
439	+	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
440	+	logmessage(LOG_ERR, "Send the wrong number of bytes (%m)");
441	+	return -1;
442	+	}
443	+
444	+	close(sd);
445	+
446	+	return 0;
447	+	}
448	+
449	+	void usage(char *progname){
450	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
451	+	fprintf(stderr, "Options\n");
452	+	fprintf(stderr, "  -v           Verbose, the more v flags the more verbose, eg -vv\n");
453	+	fprintf(stderr, "  -d           Daemon mode, self backgrounding\n");
454	+	fprintf(stderr, "  -s           Send errors to syslog\n");
455	+	fprintf(stderr, "  -V           Print version number\n");
456	+	fprintf(stderr, "  -h           Prints this help page\n");
457	+	exit(1);
458	+	}
459	+
460		int main(int argc, char **argv){
461		ihost_state_t ihost_state;
462		int heartbeat_exit;
463		int counter=0;
464	+	long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0;
465	+	int sleep_delay=0;
466	+	char *xml_stats;
467	+	pid_t pid;
468	+	int cmdopt;
469	+	extern int optind;
470	+	int verbose=0, daemon=0;
471	+	extern int syslog_logging;
472	+	extern int log_level;
473	+	extern int cur_level;
474	+	FILE *f;
475
476	+	log_level=1;
477	+	cur_level=1;
478	+	syslog_logging=0;
479
480	+	errf_set_ofunc(log_errors);
481		/* NULL'ify so i can tell if i need to free it or not */
482		ihost_state.fm_host=NULL;
483		ihost_state.my_fqdn=NULL;
#	Line 300 | Line 487 | int main(int argc, char **argv){
487		ihost_state.key=NULL;
488
489		errf_set_progname(argv[0]);
490	<	if(argc!=3){
491	<	errf_usage("<host> <port>");
490	>
491	>
492	>	while((cmdopt=getopt(argc, argv, "vdshV")) != -1){
493	>	switch(cmdopt){
494	>	case 'v':
495	>	verbose++;
496	>	break;
497	>
498	>	case 'd':
499	>	/* Force syslog logging since stderr will be closed in this case */
500	>	syslog_logging=1;
501	>	daemon=1;
502	>	break;
503	>
504	>	case 's':
505	>	syslog_logging=1;
506	>	break;
507	>
508	>	case 'h':
509	>	usage(argv[0]);
510	>	break;
511	>
512	>	case 'V':
513	>	errf("%s version %s",argv[0], VERSION_NO);
514	>	break;
515	>
516	>	default:
517	>	usage(argv[0]);
518	>	exit(1);
519	>	}
520	>	}
521	>
522	>	if(argc!=optind+2){
523	>	usage(argv[0]);
524		exit(1);
525		}
526	+	ihost_state.fm_host=argv[optind];
527	+	ihost_state.fm_port=atoi(argv[optind+1]);
528	+	if(ihost_state.fm_port==0){
529	+	errf("Invalid port number");
530	+	usage(argv[0]);
531	+	}
532
533	<	ihost_state.fm_host=argv[1];
534	<	ihost_state.fm_port=atoi(argv[2]);
533	>	if(daemon==1){
534	>	pid=fork();
535	>	if(pid==-1){
536	>	errf("Fork failed, can't background. Exiting");
537	>	exit(1);
538	>	}else if(pid!=0){
539	>	/* Parent process */
540	>	return 0;
541	>	}
542	>	/* We should now be in the background*/
543	>	if(setsid()==-1){
544	>	errf("setsid failed (%m)");
545	>	exit(1);
546	>	}
547	>	fclose(stdin);
548	>	fclose(stdout);
549	>	fclose(stderr);
550	>	}
551
552	+	if(syslog_logging==1){
553	+	openlog(errf_get_progname(),0,LOG_ERR);
554	+	setlogmask(LOG_UPTO(LOG_DEBUG));
555	+	}
556	+
557	+	switch(verbose){
558	+	case 0:
559	+	/* Critical errors + */
560	+	log_level=LOG_ERR;
561	+	break;
562	+	case 1:
563	+	/* Recoverable errors */
564	+	log_level=LOG_WARNING;
565	+	break;
566	+	case 2:
567	+	/* Print stuff like the XML packets */
568	+	log_level=LOG_INFO;
569	+	break;
570	+	default:
571	+	/* Must have lots of v's */
572	+	/* Print out everything its doing */
573	+	log_level=LOG_DEBUG;
574	+	break;
575	+	}
576	+
577	+	logmessage(LOG_DEBUG,"Writing PID FILE");
578	+	pid=getpid();
579	+	if((f=fopen(PID_FILE,"w")) == NULL){
580	+	logmessage(LOG_WARNING, "Failed to write PID file");
581	+	}else{
582	+	if((fprintf(f,"%d",(int)pid)) > 0 ){
583	+	logmessage(LOG_WARNING, "Failed to write PID file");
584	+	}
585	+	if((fclose(f))!=0){
586	+	logmessage(LOG_ERR, "failed to close PID file");
587	+	exit(1);
588	+	}
589	+	}
590	+
591		if(ihost_configure(&ihost_state)!=0){
592	<	errf("configure failed");
592	>	logmessage(LOG_ERR,"configure failed");
593		/* Ok, ideally we prob should have 2 copies of the structure and carry on if this
594		happens.. But we dont :) (at the moment) */
595		exit(1);
596		}
597
598	<	while(TRUE){
598	>	for(;;){
599	>	cur_time=time(NULL);
600	>	if(cur_time>=tcp_time){
601	>	logmessage(LOG_DEBUG,"Sending heartbeat");
602	>	heartbeat_exit=heartbeat(&ihost_state);
603	>	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
604	>	logmessage(LOG_INFO,"heartbeat needs to be reconfigured");
605	>	ihost_configure(&ihost_state);
606	>	udp_time=0;
607	>	}
608	>	if(heartbeat_exit==-1){
609	>	logmessage(LOG_ERR,"Heartbeat failed");
610	>	exit(1);
611	>	}
612	>	tcp_time=time(NULL)+ihost_state.tcp_update_time;
613	>	logmessage(LOG_DEBUG,"next tcp time should be %d", tcp_time);
614	>	}
615
616	<	heartbeat_exit=heartbeat(&ihost_state);
617	<	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
618	<	errf("heartbeat needs to be reconfigured");
619	<	ihost_configure(&ihost_state);
616	>	if(cur_time>=udp_time){
617	>	logmessage(LOG_DEBUG,"Sending udp data");
618	>	/* Work out how long it takes to get the stats for next time round
619	>	so the sleep time can be adjusted accordingly */
620	>	stat_grab_time=time(NULL);
621	>	if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){
622	>	logmessage(LOG_ERR,"Failed to get stats (%m)");
623	>	exit(1);
624	>	}
625	>	stat_grab_time=time(NULL)-stat_grab_time;
626	>	send_stats(&ihost_state, xml_stats);
627	>	free(xml_stats);
628	>	udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time;
629	>	logmessage(LOG_DEBUG,"next udp time should be %d", udp_time);
630		}
631	<	if(heartbeat_exit==-1){
632	<	errf("ah crap");
633	<	exit(1);
634	<	}
635	<	printf("Count : %d\n",counter++);
636	<	printf("waiting %d\n",ihost_state.tcp_update_time);
637	<	sleep(ihost_state.tcp_update_time);
631	>
632	>	if(tcp_time<udp_time){
633	>	sleep_delay=tcp_time-time(NULL);
634	>	}else{
635	>	sleep_delay=udp_time-time(NULL);
636	>	}
637	>	logmessage(LOG_DEBUG,"Sleeping for %d", sleep_delay);
638	>	if(sleep_delay>0) sleep(sleep_delay);
639		}
640		return 0;
641		}

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