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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.2 by pajs, Fri May 10 20:05:05 2002 UTC vs.
Revision 1.27 by tdb, Wed May 29 23:03:53 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	+
42	+	#define logmessage(level, ...) do { cur_level = level; errf(__VA_ARGS__); } while (0)
43	+
44		typedef struct{
45		int fm_port;
46		char *fm_host;
47	<
47	>
48	>	char *my_ip;
49		char *my_fqdn;
50		char *server_fqdn;
51		int server_udp_port;
52		int server_tcp_port;
53	<	long last_modified;
53	>	char *last_modified;
54		char *files_list;
55		char *key;
56		int udp_update_time;
#	Line 24 | Line 58 | typedef struct{
58
59		}ihost_state_t;
60
61	<	char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){
61	>	static int log_level;
62	>	static int cur_level;
63	>	static int syslog_logging;
64	>
65	>	void log_errors(const char *message){
66	>	if(log_level>=cur_level){
67	>	if (syslog_logging==1){
68	>	syslog(cur_level, "%s\n", message);
69	>	}else{
70	>	fprintf(stderr, "%s\n", message);
71	>	}
72	>	}
73	>	}
74	>
75	>	char* sock_comm(FILE *f_r, FILE *f_w, char *sendString){
76		char *reply;
77	<	fprintf(f_w, "%s", sendString);
77	>	logmessage(LOG_DEBUG, "Sending %s",sendString);
78	>	fprintf(f_w, "%s\n", sendString);
79		fflush(f_w);
80		reply=fpgetline(f_r);
81	+	if (reply!=NULL) logmessage(LOG_DEBUG, "Received %s", reply);
82		/* Returns pointer to static buffer */
83		return reply;
84		}
#	Line 36 | Line 86 | char* sock_comm(FILE *f_r, FILE *f_w, char* sendString
86		int ihost_configure(ihost_state_t *ihost_state){
87		struct sockaddr_in addr;
88		struct in_addr haddr;
89	+	struct sockaddr ip;
90	+	int ip_len;
91		int sd;
92		FILE *fm_fd_r, *fm_fd_w;
93		char *reply;
94		char *reply_ptr;
95
96	+	/* Check to see if anything needs to be free'd */
97	+	if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn);
98	+	if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
99	+	if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
100	+	if (ihost_state->files_list!=NULL) free(ihost_state->files_list);
101	+
102	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->fm_host, ihost_state->fm_port);
103		if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
104	<	errf("Can't create AF_INET socket (%m)");
104	>	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
105		return -1;
106		}
107
108		if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
109	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
109	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->fm_host);
110		return -1;
111		}
112
113	<	memset((char *)&addr, 0, sizeof addr);
113	>	memset(&addr, 0, sizeof addr);
114		addr.sin_family = AF_INET;
115	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
115	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
116		addr.sin_port =  htons(ihost_state->fm_port);
117
118		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
119	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
119	>	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
120		return -1;
121		}
122
123		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
124		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
125	<	errf("Failed to open stream (%m)");
125	>	logmessage(LOG_ERR, "Failed to open read stream (%m)");
126		return -1;
127		}
128
129		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
130	<	errf("Failed to open stream (%m)");
130	>	logmessage(LOG_ERR, "Failed to open write stream (%m)");
131		return -1;
132		}
133	+	ip_len=sizeof ip;
134	+	memset(&ip, 0, ip_len);
135	+	if((getsockname(sd, &ip, &ip_len)) != 0){
136	+	logmessage(LOG_ERR, "Failed to get IP address (%m)");
137	+	return -1;
138	+	}
139	+	if (ip.sa_family!=AF_INET){
140	+	logmessage(LOG_ERR, "sa family is wrong type");
141	+	return -1;
142	+	}
143
144	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
144	>	if(ihost_state->my_ip!=NULL) free(ihost_state->my_ip);
145	>	if((ihost_state->my_ip=strdup(inet_ntoa(((struct sockaddr_in *)&ip)->sin_addr)))==NULL){
146	>	logmessage(LOG_ERR, "Failed to get IP (%m)");
147	>	return -1;
148	>	}
149	>
150	>	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
151		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
152	<	errf("Server error");
152	>	logmessage(LOG_ERR, "Server error on STARTCONFIG");
153		return -1;
154		}
155
156	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
156	>	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED");
157		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
158	<	errf("Server error (%m)");
158	>	logmessage(LOG_ERR, "Server error on LASTMODIFIED (%m)");
159		return -1;
160		}
161	<	ihost_state->last_modified=atol(reply);
162	<
163	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
161	>	if((ihost_state->last_modified=strdup(reply)) == NULL){
162	>	logmessage(LOG_ERR, "strdup failed (%m)");
163	>	return -1;
164	>	}
165	>
166	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
167		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
168	<	errf("Server error (%m)");
168	>	logmessage(LOG_ERR, "Server error on FILELIST (%m)");
169		return -1;
170		}
171	<	if((ihost_state->files_list=strdup(reply)) == NULL){
172	<	errf("strdup failed (%m)");
173	<	return -1;
174	<	}
171	>	if((ihost_state->files_list=strdup(reply)) == NULL){
172	>	logmessage(LOG_ERR, "strdup failed (%m)");
173	>	return -1;
174	>	}
175
176	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
176	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN");
177		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
178	<	errf("Server error (%m)");
178	>	logmessage(LOG_ERR, "Server error on FQDN (%m)");
179		return -1;
180		}
181		if((ihost_state->my_fqdn=strdup(reply)) == NULL){
182	<	errf("strdup failed (%m)");
182	>	logmessage(LOG_ERR, "strdup failed (%m)");
183		return -1;
184		}
185
186	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
186	>	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
187		if(reply== NULL){
188	<	errf("Server error (%m)");
188	>	logmessage(LOG_ERR, "Server error (%m)");
189		return -1;
190		}
191		if (strncasecmp(reply, "ERROR", 5) != 0){
192		ihost_state->udp_update_time=atoi(reply);
193		}
194	<
195	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
194	>
195	>	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime");
196		if(reply== NULL){
197	<	errf("Server error (%m)");
197	>	logmessage(LOG_ERR, "Server error on TCPUpdateTime (%m)");
198		return -1;
199		}
200		if (strncasecmp(reply, "ERROR", 5) != 0){
201		ihost_state->tcp_update_time=atoi(reply);
202		}
203
204	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n");
204	>	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
205		if(reply== NULL){
206	<	errf("Server error (%m)");
206	>	logmessage(LOG_ERR, "Server error on ENDCONFIG (%m)");
207		return -1;
208		}
209
210	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
210	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
211		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
212	<	errf("Server error (%m)");
212	>	logmessage(LOG_ERR, "Server error FILTER failed (%m)");
213		return -1;
214		}
215		reply_ptr=strchr(reply,';');
216		if (reply_ptr==NULL){
217	<	errf("Incorrect data returned");
217	>	logmessage(LOG_ERR, "Incorrect data returned");
218		return -1;
219		}
220		*reply_ptr='\0';
221		if((ihost_state->server_fqdn=strdup(reply)) == NULL){
222	<	errf("strdup failed (%m)");
222	>	logmessage(LOG_ERR, "strdup failed (%m)");
223		return -1;
224		}
225	<	reply=++reply_ptr;
225	>	reply=reply_ptr + 1;
226		reply_ptr=strchr(reply,';');
227		if (reply_ptr==NULL){
228	<	errf("Incorrect data returned 2");
228	>	logmessage(LOG_ERR, "Incorrect data returned 2");
229		return -1;
230		}
231		*reply_ptr='\0';
232		ihost_state->server_udp_port=atoi(reply);
233	<	reply=++reply_ptr;
233	>	reply=reply_ptr+1;
234		ihost_state->server_tcp_port=atoi(reply);
235		if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
236	<	errf("Incorrect data returned 3 ");
236	>	logmessage(LOG_ERR, "Incorrect data returned 3 ");
237		return -1;
238		}
239
240	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
240	>	reply=sock_comm(fm_fd_r, fm_fd_w, "END");
241		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
242	<	errf("Server error (%m)");
242	>	logmessage(LOG_ERR, "Server error on END (%m)");
243		return -1;
244		}
245
246		if(fclose(fm_fd_r) !=0){
247	<	errf("Failed to close FD (%m)");
247	>	logmessage(LOG_ERR, "Failed to close read FD (%m)");
248		return -1;
249		}
250		if(fclose(fm_fd_w) !=0){
251	<	errf("Failed to close FD (%m)");
251	>	logmessage(LOG_ERR, "Failed to close write FD (%m)");
252		return -1;
253		}
254
255		return 0;
256	+	}
257
258	+	int heartbeat(ihost_state_t *ihost_state){
259	+	struct sockaddr_in addr;
260	+	struct in_addr haddr;
261	+	int sd;
262	+	FILE *fm_fd_r, *fm_fd_w;
263	+	char *reply;
264	+	int exitcode=0;
265	+
266	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->server_fqdn, ihost_state->server_tcp_port);
267	+	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
268	+	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
269	+	return -1;
270	+	}
271	+
272	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
273	+	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
274	+	return -1;
275	+	}
276	+
277	+	memset(&addr, 0, sizeof addr);
278	+	addr.sin_family = AF_INET;
279	+	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
280	+	addr.sin_port =  htons(ihost_state->server_tcp_port);
281	+
282	+	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
283	+	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->server_fqdn, ihost_state->server_tcp_port);
284	+	return -1;
285	+	}
286	+
287	+	/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
288	+	if ((fm_fd_r=fdopen(sd,"r")) == NULL){
289	+	logmessage(LOG_ERR, "Failed to open stream (%m)");
290	+	return -1;
291	+	}
292	+
293	+	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
294	+	logmessage(LOG_ERR, "Failed to open stream (%m)");
295	+	return -1;
296	+	}
297	+
298	+	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
299	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
300	+	logmessage(LOG_ERR, "Server error on HEARTBEAT");
301	+	return -1;
302	+	}
303	+
304	+	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
305	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
306	+	logmessage(LOG_ERR, "Server error on CONFIG");
307	+	return -1;
308	+	}
309	+
310	+	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
311	+	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
312	+	logmessage(LOG_ERR, "Server error on fileslist");
313	+	return -1;
314	+	}
315	+
316	+	reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified);
317	+	if (reply==NULL) {
318	+	logmessage(LOG_ERR, "Server error NULL recieved on lastmodified");
319	+	return -1;
320	+	}
321	+	if (strncasecmp(reply, "ERROR", 5) == 0){
322	+	/* Means the config has changed */
323	+	logmessage(LOG_INFO, "Recieved ERROR from server for a reconfigure required");
324	+	exitcode=RECONFIGURE_RETURN_CODE;
325	+	}
326	+
327	+	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
328	+	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
329	+	logmessage(LOG_ERR, "Server error on KEY");
330	+	return -1;
331	+	}
332	+	if (ihost_state->key!=NULL) free(ihost_state->key);
333	+
334	+	if((ihost_state->key=strdup(reply)) == NULL){
335	+	logmessage(LOG_ERR, "strdup failed (%m)");
336	+	return -1;
337	+	}
338	+
339	+	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
340	+	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
341	+	logmessage(LOG_ERR, "Server error on ENDHEARTBEAT (%m)");
342	+	return -1;
343	+	}
344	+
345	+	fflush(fm_fd_r);
346	+	fflush(fm_fd_w);
347	+
348	+	if(fclose(fm_fd_r) !=0){
349	+	logmessage(LOG_ERR, "Failed to close read FD (%m)");
350	+	return -1;
351	+	}
352	+	if(fclose(fm_fd_w) !=0){
353	+	logmessage(LOG_ERR, "Failed to close write FD (%m)");
354	+	return -1;
355	+	}
356	+
357	+	return exitcode;
358		}
359
360	<	int main(){
360	>	char *stat_grab(ihost_state_t *ihost_state, int counter){
361	>	#define NUM_STATS 9
362	>	char *stats[NUM_STATS];
363	>	char *xml_data=NULL;
364	>	char *xml_data_p;
365	>	int xml_size=0;
366	>	int x=0;
367	>
368	>	logmessage(LOG_DEBUG,"get_cpu_stats");
369	>	stats[0]=get_cpu_stats();
370	>	logmessage(LOG_DEBUG,"get_disk_stats");
371	>	stats[1]=get_disk_stats();
372	>	logmessage(LOG_DEBUG,"get_load_stats");
373	>	stats[2]=get_load_stats();
374	>	logmessage(LOG_DEBUG,"get_memory_stats");
375	>	stats[3]=get_memory_stats();
376	>	logmessage(LOG_DEBUG,"get_os_info");
377	>	stats[4]=get_os_info();
378	>	logmessage(LOG_DEBUG,"get_page_stats");
379	>	stats[5]=get_page_stats();
380	>	logmessage(LOG_DEBUG,"get_process_stats");
381	>	stats[6]=get_process_stats();
382	>	logmessage(LOG_DEBUG,"get_swap_stats");
383	>	stats[7]=get_swap_stats();
384	>	logmessage(LOG_DEBUG,"get_user_stats");
385	>	stats[8]=get_user_stats();
386	>
387	>
388	>	for(x=0;x<NUM_STATS;x++){
389	>	if(stats[x]==NULL){
390	>	logmessage(LOG_ERR,"Function returned NULL");
391	>	return NULL;
392	>	}
393	>	xml_size+=strlen(stats[x]);
394	>	}
395	>
396	>	xml_data=malloc(xml_size+1);
397	>	xml_data=strcpy(xml_data, stats[0]);
398	>	free(stats[0]);
399	>	for(x=1;x<NUM_STATS;x++){
400	>	strcat(xml_data, stats[x]);
401	>	free(stats[x]);
402	>	}
403	>
404	>	xml_data_p=xml_data;
405	>	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);
406	>	free(xml_data_p);
407	>
408	>	logmessage(LOG_DEBUG,"Generated XML Data of : %s", xml_data);
409	>	return xml_data;
410	>	}
411	>
412	>	int send_stats(ihost_state_t *ihost_state, char *data_stream){
413	>	struct sockaddr_in addr;
414	>	struct in_addr haddr;
415	>
416	>	int sd;
417	>	size_t len;
418	>
419	>	len=strlen(data_stream);
420	>	if(len>UDP_MAX_PACKET_SIZE){
421	>	logmessage(LOG_ERR, "Too big to send to server. Please reconfigure client and server and recompile");
422	>	exit(1);
423	>	}
424	>	logmessage(LOG_DEBUG,"Resolving IP of server");
425	>	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
426	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
427	>	return -1;
428	>	}
429	>	logmessage(LOG_DEBUG,"Creating UDP socket to %s on %d",ihost_state->server_fqdn, ihost_state->server_udp_port);
430	>	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
431	>	logmessage(LOG_ERR, "failed to create UDP socket (%m)");
432	>	return -1;
433	>	}
434	>
435	>	memset(&addr, 0, sizeof(addr));
436	>	addr.sin_family=AF_INET;
437	>	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
438	>	addr.sin_port =  htons(ihost_state->server_udp_port);
439	>
440	>	logmessage(LOG_INFO,"Sending packet : %s", data_stream);
441	>	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
442	>	logmessage(LOG_ERR, "Send the wrong number of bytes (%m)");
443	>	return -1;
444	>	}
445	>
446	>	close(sd);
447	>
448	>	return 0;
449	>	}
450	>
451	>	void usage(char *progname){
452	>	fprintf(stderr, "Usage %s [options] server port\n", progname);
453	>	fprintf(stderr, "Options\n");
454	>	fprintf(stderr, "  -v           Verbose, the more v flags the more verbose, eg -vv\n");
455	>	fprintf(stderr, "  -d           Daemon mode, self backgrounding\n");
456	>	fprintf(stderr, "  -s           Send errors to syslog\n");
457	>	fprintf(stderr, "  -V           Print version number\n");
458	>	fprintf(stderr, "  -h           Prints this help page\n");
459	>	exit(1);
460	>	}
461	>
462	>	int main(int argc, char **argv){
463		ihost_state_t ihost_state;
464	+	int heartbeat_exit;
465	+	int counter=0;
466	+	long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0;
467	+	int sleep_delay=0;
468	+	char *xml_stats;
469	+	pid_t pid;
470	+	int cmdopt;
471	+	extern int optind;
472	+	int verbose=0, daemon=0;
473	+	extern int syslog_logging;
474	+	extern int log_level;
475	+	extern int cur_level;
476	+	FILE *f;
477
478	<	ihost_state.fm_host=strdup("kernow.ukc.ac.uk");
479	<	ihost_state.fm_port=4567;
478	>	log_level=1;
479	>	cur_level=1;
480	>	syslog_logging=0;
481
482	+	errf_set_ofunc(log_errors);
483	+	/* NULL'ify so i can tell if i need to free it or not */
484	+	ihost_state.fm_host=NULL;
485	+	ihost_state.my_fqdn=NULL;
486	+	ihost_state.server_fqdn=NULL;
487	+	ihost_state.last_modified=NULL;
488	+	ihost_state.files_list=NULL;
489	+	ihost_state.key=NULL;
490	+	ihost_state.my_ip=NULL;
491	+
492	+	errf_set_progname(argv[0]);
493	+
494	+
495	+	while((cmdopt=getopt(argc, argv, "vdshV")) != -1){
496	+	switch(cmdopt){
497	+	case 'v':
498	+	verbose++;
499	+	break;
500	+
501	+	case 'd':
502	+	/* Force syslog logging since stderr will be closed in this case */
503	+	syslog_logging=1;
504	+	daemon=1;
505	+	break;
506	+
507	+	case 's':
508	+	syslog_logging=1;
509	+	break;
510	+
511	+	case 'h':
512	+	usage(argv[0]);
513	+	break;
514	+
515	+	case 'V':
516	+	errf("%s version %s",argv[0], VERSION);
517	+	break;
518	+
519	+	default:
520	+	usage(argv[0]);
521	+	exit(1);
522	+	}
523	+	}
524	+
525	+	if(argc!=optind+2){
526	+	usage(argv[0]);
527	+	exit(1);
528	+	}
529	+	ihost_state.fm_host=argv[optind];
530	+	ihost_state.fm_port=atoi(argv[optind+1]);
531	+	if(ihost_state.fm_port==0){
532	+	errf("Invalid port number");
533	+	usage(argv[0]);
534	+	}
535	+
536	+	if(daemon==1){
537	+	pid=fork();
538	+	if(pid==-1){
539	+	errf("Fork failed, can't background. Exiting");
540	+	exit(1);
541	+	}else if(pid!=0){
542	+	/* Parent process */
543	+	return 0;
544	+	}
545	+	/* We should now be in the background*/
546	+	if(setsid()==-1){
547	+	errf("setsid failed (%m)");
548	+	exit(1);
549	+	}
550	+	fclose(stdin);
551	+	fclose(stdout);
552	+	fclose(stderr);
553	+	}
554	+
555	+	if(syslog_logging==1){
556	+	openlog(errf_get_progname(),0,LOG_ERR);
557	+	setlogmask(LOG_UPTO(LOG_DEBUG));
558	+	}
559	+
560	+	switch(verbose){
561	+	case 0:
562	+	/* Critical errors + */
563	+	log_level=LOG_ERR;
564	+	break;
565	+	case 1:
566	+	/* Recoverable errors */
567	+	log_level=LOG_WARNING;
568	+	break;
569	+	case 2:
570	+	/* Print stuff like the XML packets */
571	+	log_level=LOG_INFO;
572	+	break;
573	+	default:
574	+	/* Must have lots of v's */
575	+	/* Print out everything its doing */
576	+	log_level=LOG_DEBUG;
577	+	break;
578	+	}
579	+
580	+	logmessage(LOG_DEBUG,"Writing PID FILE");
581	+	pid=getpid();
582	+	if((f=fopen(PID_FILE,"w")) == NULL){
583	+	logmessage(LOG_WARNING, "Failed to write PID file (%m)");
584	+	}else{
585	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
586	+	logmessage(LOG_WARNING, "Failed to write PID file (%m)");
587	+	}
588	+	if((fclose(f))!=0){
589	+	logmessage(LOG_ERR, "failed to close PID file");
590	+	exit(1);
591	+	}
592	+	}
593	+
594		if(ihost_configure(&ihost_state)!=0){
595	<	errf("configure failed");
595	>	logmessage(LOG_ERR,"configure failed");
596	>	/* Ok, ideally we prob should have 2 copies of the structure and carry on if this
597	>	happens.. But we dont :) (at the moment) */
598	>	exit(1);
599		}
600
601	+	for(;;){
602	+	cur_time=time(NULL);
603	+	if(cur_time>=tcp_time){
604	+	logmessage(LOG_DEBUG,"Sending heartbeat");
605	+	heartbeat_exit=heartbeat(&ihost_state);
606	+	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
607	+	logmessage(LOG_INFO,"heartbeat needs to be reconfigured");
608	+	ihost_configure(&ihost_state);
609	+	udp_time=0;
610	+	}
611	+	if(heartbeat_exit==-1){
612	+	logmessage(LOG_ERR,"Heartbeat failed");
613	+	exit(1);
614	+	}
615	+	tcp_time=time(NULL)+ihost_state.tcp_update_time;
616	+	logmessage(LOG_DEBUG,"next tcp time should be %d", tcp_time);
617	+	}
618	+
619	+	if(cur_time>=udp_time){
620	+	logmessage(LOG_DEBUG,"Sending udp data");
621	+	/* Work out how long it takes to get the stats for next time round
622	+	so the sleep time can be adjusted accordingly */
623	+	stat_grab_time=time(NULL);
624	+	if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){
625	+	logmessage(LOG_ERR,"Failed to get stats (%m)");
626	+	exit(1);
627	+	}
628	+	stat_grab_time=time(NULL)-stat_grab_time;
629	+	send_stats(&ihost_state, xml_stats);
630	+	free(xml_stats);
631	+	udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time;
632	+	logmessage(LOG_DEBUG,"next udp time should be %d", udp_time);
633	+	}
634	+
635	+	if(tcp_time<udp_time){
636	+	sleep_delay=tcp_time-time(NULL);
637	+	}else{
638	+	sleep_delay=udp_time-time(NULL);
639	+	}
640	+	logmessage(LOG_DEBUG,"Sleeping for %d", sleep_delay);
641	+	if(sleep_delay>0) sleep(sleep_delay);
642	+	}
643		return 0;
644		}
645

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