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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 1.28 by pajs, Mon Mar 3 12:18:35 2003 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 <unistd.h>
28	<	#include <syslog.h>
29	<	#include <netinet/in.h>
30	<	#include <ukcprog.h>
28	>	#include <string.h>
29	>	#include <sys/types.h>
30	>	#include <sys/socket.h>
31	>	#include <stdarg.h>
32	>	#include <errno.h>
33		#include <netdb.h>
9	–	#include <strings.h>
34
35	+	#include <ukcprog.h>
36	+	#include "statgrab.h"
37	+
38	+	#define LOG_CRIT 0
39	+	#define LOG_ERR 1
40	+	#define LOG_INFO 2
41	+	#define LOG_DEBUG 3
42	+
43	+	#define PID_FILE "/var/run/ihost.pid"
44	+	#define LOGFILE_PATH "/var/log/ihost.log"
45	+	#define VERSION ".03"
46	+
47	+	#define MAX_UDP_PACKET_SIZE 8192
48	+
49		typedef struct{
50	<	int fm_port;
51	<	char *fm_host;
52	<
53	<	char *my_fqdn;
50	>	int filtermanager_port;
51	>	char *filtermanager_host;
52	>
53	>	char *host_ip;
54	>	char *host_fqdn;
55	>
56		char *server_fqdn;
57		int server_udp_port;
58	<	int server_tcp_port;
59	<	long last_modified;
60	<	char *files_list;
61	<	char *key;
58	>
59	>	/* Weird stuff iscream wants sent to it */
60	>	char *last_modified;
61	>	char *file_list;
62	>
63		int udp_update_time;
64	<	int tcp_update_time;
64	>	//      int config_ttl;
65
66	+	time_t config_ttl;
67	+
68		}ihost_state_t;
69
70	<	char* sock_comm(FILE *f_r, FILE *f_w, char* sendString){
71	<	char *reply;
72	<	fprintf(f_w, "%s", sendString);
30	<	fflush(f_w);
31	<	reply=fpgetline(f_r);
32	<	/* Returns pointer to static buffer */
33	<	return reply;
34	<	}
70	>	typedef struct{
71	>	int verbose;
72	>	int daemon;
73
74	<	int ihost_configure(ihost_state_t *ihost_state){
74	>	FILE *log;
75	>	}ihost_config_t;
76	>
77	>	typedef struct{
78		struct sockaddr_in addr;
79	<	struct in_addr haddr;
80	<	int sd;
40	<	FILE *fm_fd_r, *fm_fd_w;
41	<	char *reply;
42	<	char *reply_ptr;
79	>	int sock;
80	>	}udp_sockinfo_t;
81
82	<	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
45	<	errf("Can't create AF_INET socket (%m)");
46	<	return -1;
47	<	}
82	>	ihost_config_t ihost_config;
83
84	<	if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
85	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
86	<	return -1;
84	>	void log_msg(int level, char *format, ...){
85	>	extern int errno;
86	>	int cur_errno;
87	>	va_list ap;
88	>
89	>	cur_errno=errno;
90	>
91	>	if(level<=ihost_config.verbose){
92	>	va_start(ap, format);
93	>	vfprintf(ihost_config.log, format, ap);
94	>	va_end(ap);
95	>	if(level==LOG_CRIT){
96	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
97	>	}else{
98	>	fprintf(ihost_config.log, "\n");
99	>	}
100		}
101	+	}
102
103	<	memset((char *)&addr, 0, sizeof addr);
104	<	addr.sin_family = AF_INET;
105	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
106	<	addr.sin_port =  htons(ihost_state->fm_port);
103	>	/* Takes many pointers, checks if they are NULL or not, and then free's them */
104	>	/* Deprciated - and i only wrote it today! :)
105	>	void m_free(int num_pointers, ...){
106	>	int x=0;
107	>	va_list ap;
108	>	void *p;
109
110	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
111	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
112	<	return -1;
110	>	va_start(ap, num_pointers);
111	>	for(;x<num_pointers;x++){
112	>	p=va_arg(ap, void*);
113	>	if(p!=NULL){
114	>	free(p);
115	>	}
116		}
117	+	va_end(ap);
118	+	}
119	+	*/
120
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	<	errf("Failed to open stream (%m)");
124	<	return -1;
121	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
122	>
123	>	struct in_addr haddr;
124	>
125	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
126	>	if(get_host_addr(hostname, &haddr) != 0){
127	>	log_msg(LOG_CRIT, "Failed to lookup name");
128	>	return 1;
129		}
130
131	<	if ((fm_fd_w=fdopen(dup(sd),"w")) == NULL){
132	<	errf("Failed to open stream (%m)");
133	<	return -1;
131	>	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
132	>	log_msg(LOG_CRIT, "Failed to create UDP socket");
133	>	return 1;
134		}
135
136	<	reply=sock_comm(fm_fd_r, fm_fd_w, "STARTCONFIG\n");
137	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
138	<	errf("Server error");
139	<	return -1;
136	>	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
137	>	udp_sockinfo->addr.sin_family=AF_INET;
138	>	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
139	>	udp_sockinfo->addr.sin_port = htons(port);
140	>
141	>	log_msg(LOG_DEBUG, "Socket created");
142	>	return 0;
143	>	}
144	>
145	>	FILE *create_tcp_connection(char *hostname, int port){
146	>	int sock;
147	>	struct sockaddr_in addr;
148	>	struct in_addr haddr;
149	>	FILE *f;
150	>
151	>	log_msg(LOG_DEBUG, "Creating tcp socket");
152	>	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
153	>	log_msg(LOG_CRIT, "Failed to make TCP Socket");
154	>	return NULL;
155		}
156
157	<	reply=sock_comm(fm_fd_r, fm_fd_w, "LASTMODIFIED\n");
158	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
159	<	errf("Server error (%m)");
84	<	return -1;
157	>	if((get_host_addr(hostname, &haddr))!=0){
158	>	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
159	>	return NULL;
160		}
161	<	ihost_state->last_modified=atol(reply);
161	>
162	>	memset(&addr, 0, sizeof(addr));
163	>	addr.sin_family = AF_INET;
164	>	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
165	>	addr.sin_port = htons(port);
166	>
167	>	log_msg(LOG_DEBUG, "Creating a tcp connection");
168	>	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
169	>	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
170	>	return NULL;
171	>	}
172	>
173	>	if((f=fdopen(sock, "r+"))==NULL){
174	>	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
175	>	close(sock);
176	>	return NULL;
177	>	}
178	>
179	>	return f;
180	>	}
181	>
182	>	int tcp_comm(FILE *f, char *send, char **response, char *expected){
183	>
184	>	log_msg(LOG_DEBUG, "Sending %s", send);
185	>	fprintf(f, "%s\n", send);
186	>	fflush(f);
187	>	*response=fpgetline(f);
188	>	fseek(f, 0, SEEK_CUR);
189	>
190	>	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
191	>
192	>	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
193
194	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILELIST\n");
195	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0)){
196	<	errf("Server error (%m)");
194	>	if(expected==NULL) return 0;
195	>
196	>	if((strcmp(expected, *response))==0) return 0;
197	>
198	>	log_msg(LOG_DEBUG, "Did not get expected response");
199	>	return -1;
200	>	}
201	>
202	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
203	>	if((tcp_comm(f, send, response, expected))!=0){
204		return -1;
205		}
206	<	if((ihost_state->files_list=strdup(reply)) == NULL){
207	<	errf("strdup failed (%m)");
208	<	return -1;
206	>
207	>	*response=strdup(*response);
208	>	if (response==NULL) return -1;
209	>
210	>	return 0;
211	>	}
212	>
213	>	int ihost_getconfig(ihost_state_t *ihost_state){
214	>
215	>	FILE *tcp_con;
216	>	char *response;
217	>	char *response_ptr;
218	>
219	>	/* Keep these in case of a failure and so it can keep running on the old config */
220	>	char *file_list=NULL;
221	>	char *last_modified=NULL;
222	>	char *host_fqdn=NULL;
223	>	char *host_ip=NULL;
224	>	int udp_update_time=0;
225	>	char *server_fqdn=NULL;
226	>	int server_udp_port=0;
227	>	time_t config_ttl=0;
228	>
229	>	tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port);
230	>
231	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
232	>	if(tcp_con==NULL){
233	>	goto error;
234	>	}
235	>
236	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
237	>	goto error;
238	>	}
239	>
240	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
241	>	goto error;
242	>	}
243	>
244	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
245	>	if((tcp_comm(tcp_con, "END", &response, "OK"))==0){
246	>	goto error;
247	>	}
248	>	fclose(tcp_con);
249	>	return 0;
250	>	}else{
251	>	if((strcmp(response, "EXPIRED"))!=0){
252	>	goto error;
253	>	}
254	>	}
255		}
256
257	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FQDN\n");
258	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
259	<	errf("Server error (%m)");
260	<	return -1;
257	>	/* If we got to here, the config must of expired */
258	>
259	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
260	>	goto error;
261		}
262	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
263	<	errf("strdup failed (%m)");
264	<	return -1;
262	>
263	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
264	>	goto error;
265		}
266	+	last_modified=response;
267	+
268	+	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
269	+	goto error;
270	+	}
271	+	file_list=response;
272
273	<	reply=sock_comm(fm_fd_r, fm_fd_w, "UDPUpdateTime\n");
274	<	if(reply== NULL){
110	<	errf("Server error (%m)");
111	<	return -1;
273	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
274	>	goto error;
275		}
276	<	if (strncasecmp(reply, "ERROR", 5) != 0){
277	<	ihost_state->udp_update_time=atoi(reply);
276	>	host_fqdn=response;
277	>
278	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
279	>	goto error;
280		}
281	+	host_ip=response;
282
283	<	reply=sock_comm(fm_fd_r, fm_fd_w, "TCPUpdateTime\n");
284	<	if(reply== NULL){
119	<	errf("Server error (%m)");
120	<	return -1;
283	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
284	>	goto error;
285		}
286	<	if (strncasecmp(reply, "ERROR", 5) != 0){
287	<	ihost_state->tcp_update_time=atoi(reply);
286	>	udp_update_time=atoi(response);
287	>
288	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
289	>	goto error;
290		}
291	+	config_ttl=atoi(response);
292
293	<	reply=sock_comm(fm_fd_r, fm_fd_w, "ENDCONFIG\n");
294	<	if(reply== NULL){
128	<	errf("Server error (%m)");
129	<	return -1;
293	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
294	>	goto error;
295		}
296
297	<	reply=sock_comm(fm_fd_r, fm_fd_w, "FILTER\n");
298	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5)==0)){
299	<	errf("Server error (%m)");
300	<	return -1;
297	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
298	>	goto error;
299	>	}else{
300	>	response_ptr=strchr(response,';');
301	>	if(response_ptr==NULL){
302	>	log_msg(LOG_ERR, "Incorrect data sent by server");
303	>	goto error;
304	>	}
305	>	*response_ptr='\0';
306	>	server_fqdn=strdup(response);
307	>	if(server_fqdn==NULL){
308	>	goto error;
309	>	}
310	>	response_ptr++;
311	>	if(response_ptr==NULL){
312	>	log_msg(LOG_ERR, "Incorrect data sent by server");
313	>	goto error;
314	>	}
315	>
316	>	printf("string : %s\n", response_ptr);
317	>	server_udp_port=atoi(response_ptr);
318	>
319	>	if (server_udp_port==0){
320	>	log_msg(LOG_ERR, "Incorrect data sent by server");
321	>	goto error;
322	>	}
323		}
324	<	reply_ptr=strchr(reply,';');
325	<	if (reply_ptr==NULL){
326	<	errf("Incorrect data returned");
140	<	return -1;
324	>
325	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
326	>	goto error;
327		}
328	<	*reply_ptr='\0';
329	<	if((ihost_state->server_fqdn=strdup(reply)) == NULL){
330	<	errf("strdup failed (%m)");
331	<	return -1;
328	>
329	>	fclose(tcp_con);
330	>
331	>	/* We have the data we need, and its all been read correctly */
332	>
333	>	/* Free the old data before pointing them to the new data. m_free copes should
334	>	* this already be NULL */
335	>	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
336	>	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
337	>	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
338	>	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
339	>	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
340	>
341	>	ihost_state->file_list=file_list;
342	>	ihost_state->last_modified=last_modified;
343	>	ihost_state->host_fqdn=host_fqdn;
344	>	ihost_state->host_ip=host_ip;
345	>	ihost_state->server_fqdn=server_fqdn;
346	>	ihost_state->server_udp_port=server_udp_port;
347	>	ihost_state->udp_update_time=udp_update_time;
348	>	ihost_state->config_ttl=config_ttl;
349	>
350	>	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
351	>	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
352	>
353	>	return 0;
354	>
355	>	error:
356	>
357	>	if(file_list!=NULL) free(file_list);
358	>	if(last_modified!=NULL) free(last_modified);
359	>	if(host_fqdn!=NULL) free(host_fqdn);
360	>	if(server_fqdn!=NULL) free(server_fqdn);
361	>	if(host_ip!=NULL) free(host_ip);
362	>	fclose(tcp_con);
363	>
364	>	return -1;
365	>	}
366	>
367	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
368	>	char tmp[size];
369	>	cpu_percent_t *cpu_percent;
370	>	mem_stat_t *mem_stats;
371	>	load_stat_t *load_stats;
372	>	user_stat_t *user_stats;
373	>	swap_stat_t *swap_stats;
374	>	general_stat_t *general_stats;
375	>	disk_stat_t *disk_stats;
376	>	diskio_stat_t *diskio_stats;
377	>	process_stat_t *process_stats;
378	>	network_stat_t *network_stats;
379	>	page_stat_t *page_stats;
380	>	int disk_entries=0;
381	>	int diskio_entries=0;
382	>	int network_entries=0;
383	>
384	>	int counter;
385	>	long long x;
386	>	long long y;
387	>
388	>	/* Print start of the packet we want */
389	>	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
390	>	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
391	>
392	>	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
393	>	if((cpu_percent=cpu_percent_usage())==NULL){
394	>	log_msg(LOG_CRIT, "Failed to get cpu statistics");
395	>	}else{
396	>	snprintf(tmp, size, \
397	>	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
398	>	cpu_percent->user, \
399	>	cpu_percent->kernel, \
400	>	cpu_percent->idle, \
401	>	cpu_percent->iowait, \
402	>	cpu_percent->swap);
403	>
404	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
405		}
406	<	reply=++reply_ptr;
407	<	reply_ptr=strchr(reply,';');
408	<	if (reply_ptr==NULL){
409	<	errf("Incorrect data returned 2");
410	<	return -1;
406	>
407	>
408	>	/*Get mem stats, and fill in xml */
409	>	if((mem_stats=get_memory_stats())==NULL){
410	>	log_msg(LOG_CRIT, "Failed to get memory statistics");
411	>	}else{
412	>	snprintf(tmp, size, \
413	>	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
414	>	mem_stats->total, \
415	>	mem_stats->free, \
416	>	mem_stats->used, \
417	>	mem_stats->cache);
418	>
419	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
420		}
421	<	*reply_ptr='\0';
422	<	ihost_state->server_udp_port=atoi(reply);
423	<	reply=++reply_ptr;
424	<	ihost_state->server_tcp_port=atoi(reply);
425	<	if ((ihost_state->server_tcp_port==0) || (ihost_state->server_udp_port==0)){
426	<	errf("Incorrect data returned 3 ");
427	<	return -1;
421	>
422	>
423	>	/* Get load stats */
424	>	if((load_stats=get_load_stats())==NULL){
425	>	log_msg(LOG_CRIT, "Failed to get load statistics");
426	>	}else{
427	>	snprintf(tmp, size, \
428	>	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
429	>	load_stats->min1, \
430	>	load_stats->min5, \
431	>	load_stats->min15);
432	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
433		}
434
435	<	reply=sock_comm(fm_fd_r, fm_fd_w, "END\n");
436	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5) ==0 )){
437	<	errf("Server error (%m)");
438	<	return -1;
435	>
436	>	/* get user stats */
437	>
438	>	if((user_stats=get_user_stats())==NULL){
439	>	log_msg(LOG_CRIT, "Failed to get user statistics");
440	>	}else{
441	>
442	>	snprintf(tmp, size, \
443	>	"<users><list>%s</list><count>%d</count></users>", \
444	>	user_stats->name_list, \
445	>	user_stats->num_entries);
446	>
447	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
448		}
449
450	<	if(fclose(fm_fd_r) !=0){
451	<	errf("Failed to close FD (%m)");
452	<	return -1;
450	>
451	>	/* swap stats */
452	>	if((swap_stats=get_swap_stats())==NULL){
453	>	log_msg(LOG_CRIT, "Failed to get swap statistics");
454	>	}else{
455	>	snprintf(tmp, size, \
456	>	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
457	>	swap_stats->total, \
458	>	swap_stats->used, \
459	>	swap_stats->free);
460	>
461	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
462		}
463	<	if(fclose(fm_fd_w) !=0){
464	<	errf("Failed to close FD (%m)");
465	<	return -1;
463	>
464	>
465	>	/* general stats */
466	>
467	>	if((general_stats=get_general_stats())==NULL){
468	>	log_msg(LOG_CRIT, "Failed to get general statistics");
469	>	}else{
470	>	snprintf(tmp, size, \
471	>	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
472	>	general_stats->os_name, \
473	>	general_stats->os_release, \
474	>	general_stats->os_version, \
475	>	general_stats->hostname, \
476	>	general_stats->platform, \
477	>	(long)general_stats->uptime);
478	>
479	>	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
480	>
481		}
482
483	+
484	+	/* process stats */
485	+	if((process_stats=get_process_stats())==NULL){
486	+	log_msg(LOG_CRIT, "Failed to get general statistics");
487	+	}else{
488	+	snprintf(tmp, size, \
489	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
490	+	process_stats->sleeping, \
491	+	process_stats->running, \
492	+	process_stats->zombie, \
493	+	process_stats->stopped, \
494	+	process_stats->total);
495	+
496	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
497	+
498	+	}
499	+
500	+
501	+	/* Get paging stats */
502	+	if((page_stats=get_page_stats_diff())==NULL){
503	+	log_msg(LOG_CRIT, "Failed to get paging statistics");
504	+	}else{
505	+	if(page_stats->systime!=0){
506	+	x=page_stats->pages_pagein / page_stats->systime;
507	+	y=page_stats->pages_pageout / page_stats->systime;
508	+	}else{
509	+	x=page_stats->pages_pagein;
510	+	y=page_stats->pages_pageout;
511	+	}
512	+	snprintf(tmp, size, \
513	+	"<pages><swapins>%lld</swapins><swapouts>%lld</swapouts></pages>", \
514	+	x, \
515	+	y);
516	+
517	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
518	+	}
519	+
520	+
521	+	/* get diskio stats */
522	+
523	+	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
524	+	log_msg(LOG_CRIT, "Failed to get diskio statistics");
525	+	}else{
526	+	strlcat(xml, "<diskio>", size);
527	+	for(counter=0;counter<diskio_entries;counter++){
528	+
529	+	if(diskio_stats->systime!=0){
530	+	x=diskio_stats->read_bytes / diskio_stats->systime;
531	+	y=diskio_stats->write_bytes / diskio_stats->systime;
532	+	}else{
533	+	x=diskio_stats->read_bytes;
534	+	y=diskio_stats->write_bytes;
535	+	}
536	+
537	+	snprintf(tmp, size, \
538	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
539	+	counter, \
540	+	diskio_stats->disk_name, \
541	+	x, \
542	+	y, \
543	+	counter);
544	+
545	+	strlcat(xml, tmp, size);
546	+	diskio_stats++;
547	+	}
548	+
549	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
550	+
551	+	}
552	+
553	+
554	+	/* get networks stats */
555	+
556	+	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
557	+	log_msg(LOG_CRIT, "Failed to get network statistics");
558	+	}else{
559	+	strlcat(xml, "<net>", size);
560	+	for(counter=0;counter<network_entries;counter++){
561	+	if(network_stats->systime!=0){
562	+	x=network_stats->rx / network_stats->systime;
563	+	y=network_stats->tx / network_stats->systime;
564	+	}else{
565	+	x=network_stats->rx;
566	+	y=network_stats->tx;
567	+	}
568	+
569	+	snprintf(tmp, size, \
570	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
571	+	counter, \
572	+	network_stats->interface_name, \
573	+	x, \
574	+	y, \
575	+	counter);
576	+
577	+	strlcat(xml, tmp, size);
578	+	network_stats++;
579	+	}
580	+
581	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
582	+
583	+	}
584	+
585	+
586	+	/* get disk stats */
587	+
588	+	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
589	+	log_msg(LOG_CRIT, "Failed to get disk statistics");
590	+	}else{
591	+	strlcat(xml, "<disk>", size);
592	+	for(counter=0;counter<disk_entries;counter++){
593	+	snprintf(tmp, size, \
594	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
595	+	counter, \
596	+	disk_stats->device_name, \
597	+	disk_stats->mnt_point, \
598	+	disk_stats->fs_type, \
599	+	disk_stats->size, \
600	+	disk_stats->used, \
601	+	disk_stats->avail, \
602	+	disk_stats->total_inodes, \
603	+	disk_stats->used_inodes, \
604	+	disk_stats->free_inodes, \
605	+	counter);
606	+
607	+	strlcat(xml, tmp, size);
608	+
609	+	disk_stats++;
610	+	}
611	+
612	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
613	+
614	+	}
615	+
616	+
617	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
618	+
619	+	/*If we got to here, it should of all been filled in nicely now */
620		return 0;
621
622	+	too_big_error:
623	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
624	+	return -1;
625		}
626
627	<	int main(){
627	>
628	>
629	>	void usage(char *progname){
630	>	fprintf(stderr, "Usage %s [options] server port\n", progname);
631	>	fprintf(stderr, "Options\n");
632	>	fprintf(stderr, "  -v           Verbose mode,-vv would make even more verbose\n");
633	>	fprintf(stderr, "  -f           Foreground mode, print errors to stderr\n");
634	>	fprintf(stderr, "  -V           Print version number\n");
635	>	fprintf(stderr, "  -h           Prints this help page\n");
636	>	exit(1);
637	>	}
638	>
639	>	int main(int argc, char **argv){
640	>
641		ihost_state_t ihost_state;
642	+	udp_sockinfo_t udp_sockinfo;
643	+
644	+	int cmdopt;
645	+	extern int optind;
646	+	pid_t pid;
647	+	FILE *f;
648	+	int packet_num=0;
649	+	int len;
650
651	<	ihost_state.fm_host=strdup("kernow.ukc.ac.uk");
185	<	ihost_state.fm_port=4567;
651	>	char packet[MAX_UDP_PACKET_SIZE];
652
653	<	if(ihost_configure(&ihost_state)!=0){
654	<	errf("configure failed");
653	>	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
654	>
655	>	/* Set default settings */
656	>	ihost_config.verbose=1;
657	>	ihost_config.daemon=1;
658	>	/* Set all errors to go down stderr until told otherwise */
659	>	ihost_config.log=stderr;
660	>
661	>	/* Blank ihost_state to default settings */
662	>	ihost_state.filtermanager_host=NULL;
663	>	ihost_state.host_fqdn=NULL;
664	>	ihost_state.host_ip=NULL;
665	>	ihost_state.server_fqdn=NULL;
666	>	ihost_state.file_list=NULL;
667	>	ihost_state.last_modified=NULL;
668	>
669	>	while((cmdopt=getopt(argc, argv, "vfhV")) != -1){
670	>	switch(cmdopt){
671	>	case 'v':
672	>	ihost_config.verbose++;
673	>	break;
674	>
675	>	case 'f':
676	>	/* Force syslog logging since stderr will be closed in this case */
677	>	ihost_config.daemon=0;
678	>	break;
679	>
680	>	case 'h':
681	>	usage(argv[0]);
682	>	break;
683	>
684	>	case 'V':
685	>	fprintf(stderr, "%s version %s", argv[0], VERSION);
686	>	break;
687	>
688	>	default:
689	>	usage(argv[0]);
690	>	exit(1);
691	>	}
692	>	}
693	>
694	>	if(argc!=optind+2){
695	>	usage(argv[0]);
696	>	exit(1);
697	>	}
698	>
699	>	ihost_state.filtermanager_host=strdup(argv[optind]);
700	>	ihost_state.filtermanager_port=atoi(argv[optind+1]);
701	>
702	>	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
703	>	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
704	>	exit(1);
705		}
706	+	if(ihost_state.filtermanager_port==0){
707	+	log_msg(LOG_ERR, "Invalid port number");
708	+	exit(1);
709	+	}
710
711	<	return 0;
712	<	}
711	>	if(ihost_config.daemon){
712	>	pid=fork();
713	>	if(pid==-1){
714	>	log_msg(LOG_CRIT, "Failed to background exiting");
715	>	exit(1);
716	>	}else if(pid!=0){
717	>	/* Parent process */
718	>	return 0;
719	>	}
720	>	/* We should now be in the background*/
721	>	if(setsid()==-1){
722	>	log_msg(LOG_CRIT, "setsid failed");
723	>	exit(1);
724	>	}
725	>
726	>	if((ihost_config.log=fopen(LOGFILE_PATH, "a"))==NULL){
727	>	ihost_config.log=stderr;
728	>	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOGFILE_PATH);
729	>	exit(1);
730	>	}
731
732	+	fclose(stdin);
733	+	fclose(stdout);
734	+	fclose(stderr);
735	+
736	+	}
737	+
738	+	log_msg(LOG_INFO, "Starting ihost");
739	+
740	+	log_msg(LOG_DEBUG,"Writing PID FILE");
741	+
742	+	pid=getpid();
743	+
744	+	if((f=fopen(PID_FILE,"w")) == NULL){
745	+	log_msg(LOG_CRIT, "Failed to write PID file");
746	+	}else{
747	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
748	+	log_msg(LOG_CRIT, "Failed to write PID file");
749	+	}
750	+	if((fclose(f))!=0){
751	+	log_msg(LOG_CRIT, "failed to close PID file");
752	+	}
753	+	}
754	+
755	+	/* Get the initial config from the filter manager. Should this fail,
756	+	* wait, and then try again. */
757	+
758	+	get_diskio_stats_diff(&packet_num);
759	+	packet_num=0;
760	+
761	+	while(ihost_getconfig(&ihost_state)!=0){
762	+	log_msg(LOG_ERR, "Failed to get ihost config");
763	+	sleep(10);
764	+	}
765	+
766	+	printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);
767	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
768	+	log_msg(LOG_ERR, "Failed to create udp socket");
769	+	sleep(10);
770	+	}
771	+
772	+	config_time=time(NULL)+ihost_state.config_ttl;
773	+
774	+	/* Now have config.. collect data and send as often as required */
775	+	for(;;){
776	+	cur_time=time(NULL);
777	+
778	+	if(cur_time>=udp_time){
779	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
780	+	log_msg(LOG_ERR, "Failed to get system stats");
781	+	}
782	+
783	+	len=strlen(packet);
784	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
785	+
786	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
787	+	log_msg(LOG_CRIT, "Failed to send packet");
788	+	}
789	+	udp_time=cur_time+ihost_state.udp_update_time;
790	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
791	+	}
792	+
793	+	if(cur_time>=config_time){
794	+	if(ihost_getconfig(&ihost_state)!=0){
795	+	/* If we can't get the config, try again 5 minutes time */
796	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
797	+	config_time=time(NULL)+300;
798	+	}else{
799	+	close(udp_sockinfo.sock);
800	+
801	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
802	+	log_msg(LOG_CRIT, "Failed to create udp socket");
803	+	sleep(10);
804	+	}
805	+
806	+	config_time=time(NULL)+ihost_state.config_ttl;
807	+
808	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
809	+	}
810	+	}
811	+
812	+	sleep_delay=udp_time-time(NULL);
813	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
814	+	if(sleep_delay>0) sleep(sleep_delay);
815	+	}
816	+
817	+	return(0);
818	+	}

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