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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.4 by pajs, Sun May 12 12:00:33 2002 UTC vs.
Revision 1.19 by pajs, Tue May 21 14:23:31 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 <netinet/in.h>
33	>	#include <arpa/inet.h>
34	>	#include <syslog.h>
35
36	+	#define versionNo 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	<	char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){
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	<	fprintf(f_w, "%s", sendString);
76	>	fprintf(f_w, "%s\n", sendString);
77		fflush(f_w);
78		reply=fpgetline(f_r);
79		/* Returns pointer to static buffer */
#	Line 38 | Line 83 | char* sock_comm(FILE *f_r, FILE *f_w, char* sendString
83		int ihost_configure(ihost_state_t *ihost_state){
84		struct sockaddr_in addr;
85		struct in_addr haddr;
86	+	struct sockaddr ip;
87	+	int ip_len;
88		int sd;
89		FILE *fm_fd_r, *fm_fd_w;
90		char *reply;
91		char *reply_ptr;
92
93	+	/* Check to see if anything needs to be free'd */
94	+	if (ihost_state->my_fqdn!=NULL) free(ihost_state->my_fqdn);
95	+	if (ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
96	+	if (ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
97	+	if (ihost_state->files_list!=NULL) free(ihost_state->files_list);
98	+
99	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->fm_host, ihost_state->fm_port);
100		if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
101	<	errf("Can't create AF_INET socket (%m)");
101	>	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
102		return -1;
103		}
104
105		if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
106	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
106	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->fm_host);
107		return -1;
108		}
109
110	<	memset((char *)&addr, 0, sizeof addr);
110	>	memset(&addr, 0, sizeof addr);
111		addr.sin_family = AF_INET;
112	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
112	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
113		addr.sin_port =  htons(ihost_state->fm_port);
114
115		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
116	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
116	>	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
117		return -1;
118		}
119
120		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
121		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
122	<	errf("Failed to open stream (%m)");
122	>	logmessage(LOG_ERR, "Failed to open read stream (%m)");
123		return -1;
124		}
125
126		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
127	<	errf("Failed to open stream (%m)");
127	>	logmessage(LOG_ERR, "Failed to open write stream (%m)");
128		return -1;
129		}
130	<
131	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
130	>	ip_len=sizeof ip;
131	>	memset(&ip, 0, ip_len);
132	>	if((getsockname(sd, &ip, &ip_len)) != 0){
133	>	logmessage(LOG_ERR, "Failed to get IP address (%m)");
134	>	return -1;
135	>	}
136	>	if (ip.sa_family!=AF_INET){
137	>	logmessage(LOG_ERR, "sa family is wrong type");
138	>	return -1;
139	>	}
140	>
141	>	if((ihost_state->my_ip=inet_ntoa(((struct sockaddr_in *)&ip)->sin_addr))==NULL){
142	>	logmessage(LOG_ERR, "Failed to get IP (%m)");
143	>	return -1;
144	>	}
145	>
146	>	logmessage(LOG_DEBUG, "Sending STARTCONIG");
147	>	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG");
148		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
149	<	errf("Server error");
149	>	logmessage(LOG_ERR, "Server error on STARTCONFIG");
150		return -1;
151		}
152
153	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
153	>	logmessage(LOG_DEBUG, "Sending LASTMODIFIED");
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	<
164	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
163	>
164	>	logmessage(LOG_DEBUG, "Sending FILELIST");
165	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST");
166		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
167	<	errf("Server error (%m)");
167	>	logmessage(LOG_ERR, "Server error on FILELIST (%m)");
168		return -1;
169		}
170	<	if((ihost_state->files_list=strdup(reply)) == NULL){
171	<	errf("strdup failed (%m)");
172	<	return -1;
173	<	}
170	>	if((ihost_state->files_list=strdup(reply)) == NULL){
171	>	logmessage(LOG_ERR, "strdup failed (%m)");
172	>	return -1;
173	>	}
174
175	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
175	>	logmessage(LOG_DEBUG, "Sending FQDN");
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	>	logmessage(LOG_DEBUG, "Sending FQDN");
187	>	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime");
188		if(reply== NULL){
189	<	errf("Server error (%m)");
189	>	logmessage(LOG_ERR, "Server error (%m)");
190		return -1;
191		}
192		if (strncasecmp(reply, "ERROR", 5) != 0){
193		ihost_state->udp_update_time=atoi(reply);
194		}
195	<
196	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
195	>
196	>	logmessage(LOG_DEBUG, "Sending TCPUpdateTime");
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	>	logmessage(LOG_DEBUG, "Sending ENDCONFIG");
207	>	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG");
208		if(reply== NULL){
209	<	errf("Server error (%m)");
209	>	logmessage(LOG_ERR, "Server error on ENDCONFIG (%m)");
210		return -1;
211		}
212
213	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
213	>	logmessage(LOG_DEBUG, "Sending FILTER");
214	>	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER");
215		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
216	<	errf("Server error (%m)");
216	>	logmessage(LOG_ERR, "Server error FILTER failed (%m)");
217		return -1;
218		}
219		reply_ptr=strchr(reply,';');
220		if (reply_ptr==NULL){
221	<	errf("Incorrect data returned");
221	>	logmessage(LOG_ERR, "Incorrect data returned");
222		return -1;
223		}
224		*reply_ptr='\0';
225		if((ihost_state->server_fqdn=strdup(reply)) == NULL){
226	<	errf("strdup failed (%m)");
226	>	logmessage(LOG_ERR, "strdup failed (%m)");
227		return -1;
228		}
229	<	reply=++reply_ptr;
229	>	reply=reply_ptr + 1;
230		reply_ptr=strchr(reply,';');
231		if (reply_ptr==NULL){
232	<	errf("Incorrect data returned 2");
232	>	logmessage(LOG_ERR, "Incorrect data returned 2");
233		return -1;
234		}
235		*reply_ptr='\0';
236		ihost_state->server_udp_port=atoi(reply);
237	<	reply=++reply_ptr;
237	>	reply=reply_ptr+1;
238		ihost_state->server_tcp_port=atoi(reply);
239		if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
240	<	errf("Incorrect data returned 3 ");
240	>	logmessage(LOG_ERR, "Incorrect data returned 3 ");
241		return -1;
242		}
243
244	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
244	>	logmessage(LOG_DEBUG, "Sending END");
245	>	reply=sock_comm(fm_fd_r, fm_fd_w, "END");
246		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
247	<	errf("Server error (%m)");
247	>	logmessage(LOG_ERR, "Server error on END (%m)");
248		return -1;
249		}
250
251		if(fclose(fm_fd_r) !=0){
252	<	errf("Failed to close FD (%m)");
252	>	logmessage(LOG_ERR, "Failed to close read FD (%m)");
253		return -1;
254		}
255		if(fclose(fm_fd_w) !=0){
256	<	errf("Failed to close FD (%m)");
256	>	logmessage(LOG_ERR, "Failed to close write FD (%m)");
257		return -1;
258		}
259
#	Line 190 | Line 268 | int heartbeat(ihost_state_t *ihost_state){
268		char *reply;
269		int exitcode=0;
270
271	+	logmessage(LOG_DEBUG, "Setting up configure socket to %s on port %d", ihost_state->server_fqdn, ihost_state->server_tcp_port);
272		if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
273	<	errf("Can't create AF_INET socket (%m)");
273	>	logmessage(LOG_ERR, "Can't create AF_INET socket (%m)");
274		return -1;
275		}
276
277		if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
278	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
278	>	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
279		return -1;
280		}
281
282	<	memset((char *)&addr, 0, sizeof addr);
282	>	memset(&addr, 0, sizeof addr);
283		addr.sin_family = AF_INET;
284	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
284	>	memcpy(&addr.sin_addr, &haddr, sizeof haddr);
285		addr.sin_port =  htons(ihost_state->server_tcp_port);
286
287		if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
288	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
288	>	logmessage(LOG_ERR, "Failed to connect to %s on port %d (%m)", ihost_state->server_fqdn, ihost_state->server_tcp_port);
289		return -1;
290		}
291
292		/* Need to open 2 files, one for reading one for writing, as it gets confused if we only use 1 :) */
293		if ((fm_fd_r=fdopen(sd,"r")) == NULL){
294	<	errf("Failed to open stream (%m)");
294	>	logmessage(LOG_ERR, "Failed to open stream (%m)");
295		return -1;
296		}
297
298		if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
299	<	errf("Failed to open stream (%m)");
299	>	logmessage(LOG_ERR, "Failed to open stream (%m)");
300		return -1;
301		}
302
303	<	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT\n");
304	<	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 2) == 0) ) {
305	<	errf("Server error");
303	>	logmessage(LOG_DEBUG, "Sending HEARTBEAT");
304	>	reply=sock_comm(fm_fd_r, fm_fd_w, "HEARTBEAT");
305	>	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
306	>	logmessage(LOG_ERR, "Server error on HEARTBEAT");
307		return -1;
308		}
309
310	<	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG\n");
311	<	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 2) == 0) ) {
312	<	errf("Server error");
310	>	logmessage(LOG_DEBUG, "Sending CONFIG");
311	>	reply=sock_comm(fm_fd_r, fm_fd_w, "CONFIG");
312	>	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
313	>	logmessage(LOG_ERR, "Server error on CONFIG");
314		return -1;
315		}
316
317	+	logmessage(LOG_DEBUG, "Sending %s", ihost_state->files_list);
318		reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->files_list);
319		if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
320	<	errf("Server error");
320	>	logmessage(LOG_ERR, "Server error on fileslist");
321		return -1;
322		}
323
324	+	logmessage(LOG_DEBUG, "Sending %s", ihost_state->last_modified);
325		reply=sock_comm(fm_fd_r, fm_fd_w, ihost_state->last_modified);
326		if (reply==NULL) {
327	<	errf("Server error");
327	>	logmessage(LOG_ERR, "Server error NULL recieved on lastmodified");
328		return -1;
329		}
330	<	if (strncasecmp(reply, "ERROR", 2) == 0){
330	>	if (strncasecmp(reply, "ERROR", 5) == 0){
331		/* Means the config has changed */
332	+	logmessage(LOG_INFO, "Recieved ERROR from server for a reconfigure required");
333		exitcode=RECONFIGURE_RETURN_CODE;
334		}
335	<	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY\n");
336	<	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 2) == 0) ) {
337	<	errf("Server error");
335	>
336	>	logmessage(LOG_DEBUG,"Sending KEY");
337	>	reply=sock_comm(fm_fd_r, fm_fd_w, "KEY");
338	>	if ((reply==NULL) || (strncasecmp(reply, "ERROR", 5) == 0) ) {
339	>	logmessage(LOG_ERR, "Server error on KEY");
340		return -1;
341		}
342	<
342	>	if (ihost_state->key!=NULL) free(ihost_state->key);
343	>
344		if((ihost_state->key=strdup(reply)) == NULL){
345	<	errf("strdup failed (%m)");
345	>	logmessage(LOG_ERR, "strdup failed (%m)");
346		return -1;
347		}
348
349	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
349	>	logmessage(LOG_DEBUG,"Sending ENDHEARTBEAT");
350	>	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDHEARTBEAT");
351		if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
352	<	errf("Server error (%m)");
352	>	logmessage(LOG_ERR, "Server error on ENDHEARTBEAT (%m)");
353		return -1;
354		}
355
356	+	fflush(fm_fd_r);
357	+	fflush(fm_fd_w);
358	+
359	+	if(fclose(fm_fd_r) !=0){
360	+	logmessage(LOG_ERR, "Failed to close read FD (%m)");
361	+	return -1;
362	+	}
363	+	if(fclose(fm_fd_w) !=0){
364	+	logmessage(LOG_ERR, "Failed to close write FD (%m)");
365	+	return -1;
366	+	}
367	+
368		return exitcode;
369		}
370
371	+	char *stat_grab(ihost_state_t *ihost_state, int counter){
372	+	#define NUM_STATS 9
373	+	char *stats[NUM_STATS];
374	+	char *xml_data=NULL;
375	+	char *xml_data_p;
376	+	int x=0;
377
378	+	logmessage(LOG_DEBUG,"get_cpu_stats");
379	+	stats[0]=get_cpu_stats();
380	+	logmessage(LOG_DEBUG,"get_disk_stats");
381	+	stats[1]=get_disk_stats();
382	+	logmessage(LOG_DEBUG,"get_load_stats");
383	+	stats[2]=get_load_stats();
384	+	logmessage(LOG_DEBUG,"get_memory_stats");
385	+	stats[3]=get_memory_stats();
386	+	logmessage(LOG_DEBUG,"get_os_info");
387	+	stats[4]=get_os_info();
388	+	logmessage(LOG_DEBUG,"get_page_stats");
389	+	stats[5]=get_page_stats();
390	+	logmessage(LOG_DEBUG,"get_process_stats");
391	+	stats[6]=get_process_stats();
392	+	logmessage(LOG_DEBUG,"get_swap_stats");
393	+	stats[7]=get_swap_stats();
394	+	logmessage(LOG_DEBUG,"get_user_stats");
395	+	stats[8]=get_user_stats();
396	+
397	+	for(;x<NUM_STATS;x++){
398	+	if(stats[x]==NULL){
399	+	logmessage(LOG_ERR,"Function returned NULL");
400	+	return NULL;
401	+	}
402	+	if(xml_data==NULL){
403	+	if((xml_data=strf("%s", stats[x])) == NULL){
404	+	logmessage(LOG_ERR, "str failed (%m)");
405	+	return NULL;
406	+	}
407	+	}else{
408	+	xml_data_p=xml_data;
409	+	if((xml_data=strf("%s%s", xml_data, stats[x])) == NULL){
410	+	logmessage(LOG_ERR, "str failed (%m)");
411	+	return NULL;
412	+	}
413	+	free(xml_data_p);
414	+	}
415	+	free(stats[x]);
416	+	}
417	+	xml_data_p=xml_data;
418	+	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);
419	+	free(xml_data_p);
420	+
421	+	logmessage(LOG_DEBUG,"Generated XML Data of : %s", xml_data);
422	+	return xml_data;
423	+	}
424	+
425	+	int send_stats(ihost_state_t *ihost_state, char *data_stream){
426	+	struct sockaddr_in addr;
427	+	struct in_addr haddr;
428	+
429	+	int sd;
430	+	size_t len;
431	+
432	+	len=strlen(data_stream);
433	+	if(len>UDP_MAX_PACKET_SIZE){
434	+	logmessage(LOG_ERR, "Too big to send to server. Please reconfigure client and server and recompile");
435	+	exit(1);
436	+	}
437	+	logmessage(LOG_DEBUG,"Resolving IP of server");
438	+	if (get_host_addr(ihost_state->server_fqdn, &haddr) != 0){
439	+	logmessage(LOG_ERR, "Failed to resolve address %s (%m)", ihost_state->server_fqdn);
440	+	return -1;
441	+	}
442	+	logmessage(LOG_DEBUG,"Creating UDP connection to %s on %d",ihost_state->server_fqdn, ihost_state->server_udp_port);
443	+	if((sd=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
444	+	logmessage(LOG_ERR, "failed to create UDP socket (%m)");
445	+	return -1;
446	+	}
447	+
448	+	memset(&addr, 0, sizeof(addr));
449	+	addr.sin_family=AF_INET;
450	+	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
451	+	addr.sin_port =  htons(ihost_state->server_udp_port);
452	+
453	+	logmessage(LOG_INFO,"Sending packet : %s", data_stream);
454	+	if((sendto(sd, data_stream, len, 0, (struct sockaddr *) &addr, sizeof(addr))) != len){
455	+	logmessage(LOG_ERR, "Send the wrong number of bytes (%m)");
456	+	return -1;
457	+	}
458	+
459	+	close(sd);
460	+
461	+	return 0;
462	+	}
463	+
464	+	void usage(char *progname){
465	+	fprintf(stderr, "Usage %s [options] server port\n", progname);
466	+	fprintf(stderr, "Options\n");
467	+	fprintf(stderr, "  -v           Verbose, the more v flags the more verbose, eg -vv\n");
468	+	fprintf(stderr, "  -d           Daemon mode, self backgrounding\n");
469	+	fprintf(stderr, "  -s           Send errors to syslog\n");
470	+	fprintf(stderr, "  -V           Print version number\n");
471	+	fprintf(stderr, "  -h           Prints this help page\n");
472	+	exit(1);
473	+	}
474	+
475		int main(int argc, char **argv){
476		ihost_state_t ihost_state;
477	+	int heartbeat_exit;
478	+	int counter=0;
479	+	long udp_time=0, tcp_time=0, stat_grab_time=0, cur_time=0;
480	+	int sleep_delay=0;
481	+	char *xml_stats;
482	+	pid_t pid;
483	+	int cmdopt;
484	+	extern int optind;
485	+	int verbose=0, daemon=0;
486	+	extern int syslog_logging;
487	+	extern int log_level;
488	+	extern int cur_level;
489	+	FILE *f;
490	+
491	+	log_level=1;
492	+	cur_level=1;
493	+	syslog_logging=0;
494	+
495	+	errf_set_ofunc(log_errors);
496	+	/* NULL'ify so i can tell if i need to free it or not */
497	+	ihost_state.fm_host=NULL;
498	+	ihost_state.my_fqdn=NULL;
499	+	ihost_state.server_fqdn=NULL;
500	+	ihost_state.last_modified=NULL;
501	+	ihost_state.files_list=NULL;
502	+	ihost_state.key=NULL;
503	+
504		errf_set_progname(argv[0]);
505	<	if(argc!=3){
506	<	errf_usage("<host> <port>");
505	>
506	>
507	>	while((cmdopt=getopt(argc, argv, "vdshV")) != -1){
508	>	switch(cmdopt){
509	>	case 'v':
510	>	verbose++;
511	>	break;
512	>
513	>	case 'd':
514	>	/* Force syslog logging since stderr will be closed in this case */
515	>	syslog_logging=1;
516	>	daemon=1;
517	>	break;
518	>
519	>	case 's':
520	>	syslog_logging=1;
521	>	break;
522	>
523	>	case 'h':
524	>	usage(argv[0]);
525	>	break;
526	>
527	>	case 'V':
528	>	errf("%s version %f",argv[0], versionNo);
529	>	break;
530	>
531	>	default:
532	>	usage(argv[0]);
533	>	exit(1);
534	>	}
535	>	}
536	>
537	>	if(argc!=optind+2){
538	>	usage(argv[0]);
539		exit(1);
540		}
541	+	ihost_state.fm_host=argv[optind];
542	+	ihost_state.fm_port=atoi(argv[optind+1]);
543	+	if(ihost_state.fm_port==0){
544	+	errf("Invalid port number");
545	+	usage(argv[0]);
546	+	}
547
548	<	ihost_state.fm_host=argv[1];
549	<	ihost_state.fm_port=atoi(argv[2]);
548	>	if(daemon==1){
549	>	pid=fork();
550	>	if(pid==-1){
551	>	errf("Fork failed, can't background. Exiting");
552	>	exit(1);
553	>	}else if(pid!=0){
554	>	/* Parent process */
555	>	return 0;
556	>	}
557	>	/* We should now be in the background*/
558	>	if(setsid()==-1){
559	>	errf("setsid failed (%m)");
560	>	exit(1);
561	>	}
562	>	fclose(stdin);
563	>	fclose(stdout);
564	>	fclose(stderr);
565	>	}
566
567	+	if(syslog_logging==1){
568	+	openlog(errf_get_progname(),0,LOG_ERR);
569	+	setlogmask(LOG_UPTO(LOG_DEBUG));
570	+	}
571	+
572	+	switch(verbose){
573	+	case 0:
574	+	/* Critical errors + */
575	+	log_level=LOG_ERR;
576	+	break;
577	+	case 1:
578	+	/* Recoverable errors */
579	+	log_level=LOG_WARNING;
580	+	break;
581	+	case 2:
582	+	/* Print stuff like the XML packets */
583	+	log_level=LOG_INFO;
584	+	break;
585	+	default:
586	+	/* Must have lots of v's */
587	+	/* Print out everything its doing */
588	+	log_level=LOG_DEBUG;
589	+	break;
590	+	}
591	+
592	+	logmessage(LOG_DEBUG,"Writing PID FILE");
593	+	pid=getpid();
594	+	if((f=fopen(PID_FILE,"w")) == NULL){
595	+	logmessage(LOG_WARNING, "Failed to write PID file");
596	+	}else{
597	+	if((fprintf(f,"%d",(int)pid)) != sizeof(pid)){
598	+	logmessage(LOG_WARNING, "Failed to write PID file");
599	+	}
600	+	if((fclose(f))!=0){
601	+	logmessage(LOG_ERR, "failed to close PID file");
602	+	exit(1);
603	+	}
604	+	}
605	+
606		if(ihost_configure(&ihost_state)!=0){
607	<	errf("configure failed");
607	>	logmessage(LOG_ERR,"configure failed");
608	>	/* Ok, ideally we prob should have 2 copies of the structure and carry on if this
609	>	happens.. But we dont :) (at the moment) */
610	>	exit(1);
611		}
612
613	+	for(;;){
614	+	cur_time=time(NULL);
615	+	if(cur_time>=tcp_time){
616	+	logmessage(LOG_DEBUG,"Sending heartbeat");
617	+	heartbeat_exit=heartbeat(&ihost_state);
618	+	if(heartbeat_exit==RECONFIGURE_RETURN_CODE){
619	+	logmessage(LOG_INFO,"heartbeat needs to be reconfigured");
620	+	ihost_configure(&ihost_state);
621	+	udp_time=0;
622	+	}
623	+	if(heartbeat_exit==-1){
624	+	logmessage(LOG_ERR,"Heartbeat failed");
625	+	exit(1);
626	+	}
627	+	tcp_time=time(NULL)+ihost_state.tcp_update_time;
628	+	logmessage(LOG_DEBUG,"next tcp time should be %d", tcp_time);
629	+	}
630	+
631	+	if(cur_time>=udp_time){
632	+	logmessage(LOG_DEBUG,"Sending udp data");
633	+
634	+	stat_grab_time=time(NULL);
635	+	if((xml_stats=stat_grab(&ihost_state, counter++)) == NULL){
636	+	logmessage(LOG_ERR,"Failed to get stats (%m)");
637	+	exit(1);
638	+	}
639	+	stat_grab_time=time(NULL)-stat_grab_time;
640	+	send_stats(&ihost_state, xml_stats);
641	+	free(xml_stats);
642	+	udp_time=time(NULL)+ihost_state.udp_update_time-stat_grab_time;
643	+	logmessage(LOG_DEBUG,"next udp time should be %d", udp_time);
644	+	}
645	+
646	+	if(tcp_time<udp_time){
647	+	sleep_delay=tcp_time-time(NULL);
648	+	}else{
649	+	sleep_delay=udp_time-time(NULL);
650	+	}
651	+	logmessage(LOG_DEBUG,"Sleeping for %d", sleep_delay);
652	+	if(sleep_delay>0) sleep(sleep_delay);
653	+	}
654		return 0;
655		}
656

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