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

Comparing projects/cms/source/ihost/ihost.c (file contents):
Revision 1.1 by pajs, Fri May 10 17:11:30 2002 UTC vs.
Revision 1.44 by pajs, Mon Jan 5 15:22:17 2004 UTC

#	Line 1 | Line 1
1	+	/*
2	+	* i-scream central monitoring system
3	+	* http://www.i-scream.org
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>
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>
34		#include <netinet/in.h>
35	+
36		#include <ukcprog.h>
37	<	#include <netdb.h>
9	<	#include <strings.h>
37	>	#include <statgrab.h>
38
39	+	#define LOG_CRIT 0
40	+	#define LOG_ERR 1
41	+	#define LOG_INFO 2
42	+	#define LOG_DEBUG 3
43	+
44		typedef struct{
45	<	int fm_port;
46	<	char *fm_host;
47	<
48	<	char *my_fqdn;
45	>	int filtermanager_port;
46	>	char *filtermanager_host;
47	>
48	>	char *host_ip;
49	>	char *host_fqdn;
50	>	int preset_fqdn;
51	>	int preset_ip;
52	>
53		char *server_fqdn;
54		int server_udp_port;
55	<	int server_tcp_port;
56	<	long last_modified;
57	<	char *files_list;
58	<	char *key;
55	>
56	>	/* Weird stuff iscream wants sent to it */
57	>	char *last_modified;
58	>	char *file_list;
59	>
60		int udp_update_time;
61	<	int tcp_update_time;
61	>	//      int config_ttl;
62
63	+	time_t config_ttl;
64	+
65		}ihost_state_t;
66
67	<	char* sock_comm(FILE *f, char* sendString){
68	<	char *reply;
67	>	typedef struct{
68	>	int verbose;
69	>	int daemon;
70
71	<	fprintf(f, sendString);
72	<	fflush(f);
32	<	reply=fpgetline(f);
33	<	/* Returns pointer to static buffer */
34	<	return reply;
35	<	}
71	>	FILE *log;
72	>	}ihost_config_t;
73
74	<	int ihost_configure(ihost_state_t *ihost_state){
74	>	typedef struct{
75		struct sockaddr_in addr;
76	<	struct in_addr haddr;
77	<	int sd;
41	<	FILE *fm_fd;
42	<	char *reply;
76	>	int sock;
77	>	}udp_sockinfo_t;
78
79	<	if ((sd = socket(AF_INET, SOCK_STREAM, PF_UNSPEC)) < 0) {
45	<	errf("Can't create AF_INET socket (%m)");
46	<	return -1;
47	<	}
79	>	ihost_config_t ihost_config;
80
81	<	if (get_host_addr(ihost_state->fm_host, &haddr) != 0){
82	<	errf("Failed to resolve address %s (%m)", ihost_state->fm_host);
83	<	return -1;
81	>	extern int errno;
82	>
83	>	/* Taken from the OpenSSH code. Its licence included in function.*/
84	>	#ifndef HAVE_STRLCAT
85	>
86	>	/*
87	>	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
88	>	* All rights reserved.
89	>	*
90	>	* Redistribution and use in source and binary forms, with or without
91	>	* modification, are permitted provided that the following conditions
92	>	* are met:
93	>	* 1. Redistributions of source code must retain the above copyright
94	>	*    notice, this list of conditions and the following disclaimer.
95	>	* 2. Redistributions in binary form must reproduce the above copyright
96	>	*    notice, this list of conditions and the following disclaimer in the
97	>	*    documentation and/or other materials provided with the distribution.
98	>	* 3. The name of the author may not be used to endorse or promote products
99	>	*    derived from this software without specific prior written permission.
100	>	*
101	>	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
102	>	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
103	>	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
104	>	* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
105	>	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
106	>	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
107	>	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
108	>	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
109	>	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
110	>	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
111	>	*/
112	>
113	>	/*
114	>	* Appends src to string dst of size siz (unlike strncat, siz is the
115	>	* full size of dst, not space left).  At most siz-1 characters
116	>	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
117	>	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
118	>	* If retval >= siz, truncation occurred.
119	>	*/
120	>	size_t
121	>	strlcat(dst, src, siz)
122	>	char *dst;
123	>	const char *src;
124	>	size_t siz;
125	>	{
126	>	register char *d = dst;
127	>	register const char *s = src;
128	>	register size_t n = siz;
129	>	size_t dlen;
130	>
131	>	/* Find the end of dst and adjust bytes left but don't go past end */
132	>	while (n-- != 0 && *d != '\0')
133	>	d++;
134	>	dlen = d - dst;
135	>	n = siz - dlen;
136	>
137	>	if (n == 0)
138	>	return(dlen + strlen(s));
139	>	while (*s != '\0') {
140	>	if (n != 1) {
141	>	*d++ = *s;
142	>	n--;
143	>	}
144	>	s++;
145	>	}
146	>	*d = '\0';
147	>
148	>	return(dlen + (s - src));       /* count does not include NUL */
149	>	}
150	>
151	>	#endif
152	>	/* End strlcat function taken from OpenSSH */
153	>
154	>	void log_msg(int level, char *format, ...){
155	>	int cur_errno;
156	>	va_list ap;
157	>
158	>	cur_errno=errno;
159	>
160	>	if(level<=ihost_config.verbose){
161	>	va_start(ap, format);
162	>	vfprintf(ihost_config.log, format, ap);
163	>	va_end(ap);
164	>	if(level==LOG_CRIT){
165	>	fprintf(ihost_config.log, " (%s)\n", strerror(cur_errno));
166	>	}else{
167	>	fprintf(ihost_config.log, "\n");
168	>	}
169	>	fflush(ihost_config.log);
170		}
171	+	}
172
173	<	memset((char *)&addr, 0, sizeof addr);
174	<	addr.sin_family = AF_INET;
175	<	memcpy((char *)&addr.sin_addr, &haddr, sizeof haddr);
176	<	addr.sin_port =  htons(ihost_state->fm_port);
173	>	/* Takes many pointers, checks if they are NULL or not, and then free's them */
174	>	/* Deprciated - and i only wrote it today! :)
175	>	void m_free(int num_pointers, ...){
176	>	int x=0;
177	>	va_list ap;
178	>	void *p;
179
180	<	if (connect(sd, (struct sockaddr *)&addr, sizeof addr) != 0) {
181	<	errf("Failed to connect to %s on port %d (%m)", ihost_state->fm_host, ihost_state->fm_port);
182	<	return -1;
180	>	va_start(ap, num_pointers);
181	>	for(;x<num_pointers;x++){
182	>	p=va_arg(ap, void*);
183	>	if(p!=NULL){
184	>	free(p);
185	>	}
186		}
187	+	va_end(ap);
188	+	}
189	+	*/
190
191	<	if ((fm_fd=fdopen(sd,"r+")) == NULL){
192	<	errf("Failed to open stream (%m)");
193	<	return -1;
191	>	int create_udp_sockinfo(udp_sockinfo_t *udp_sockinfo, char *hostname, int port){
192	>
193	>	struct in_addr haddr;
194	>
195	>	log_msg(LOG_DEBUG, "Resolving name for udp connection");
196	>	if(get_host_addr(hostname, &haddr) != 0){
197	>	log_msg(LOG_CRIT, "Failed to lookup name");
198	>	return 1;
199		}
200	+
201	+	if((udp_sockinfo->sock=socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0){
202	+	log_msg(LOG_CRIT, "Failed to create UDP socket");
203	+	return 1;
204	+	}
205	+
206	+	memset(&(udp_sockinfo->addr), 0, sizeof(struct sockaddr_in));
207	+	udp_sockinfo->addr.sin_family=AF_INET;
208	+	memcpy((char *)&(udp_sockinfo->addr.sin_addr), &haddr, sizeof(haddr));
209	+	udp_sockinfo->addr.sin_port = htons(port);
210	+
211	+	log_msg(LOG_DEBUG, "Socket created");
212	+	return 0;
213	+	}
214	+
215	+	FILE *create_tcp_connection(char *hostname, int port){
216	+	int sock;
217	+	struct sockaddr_in addr;
218	+	struct in_addr haddr;
219	+	FILE *f;
220	+
221	+	log_msg(LOG_DEBUG, "Creating tcp socket");
222	+	if((sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP))<0){
223	+	log_msg(LOG_CRIT, "Failed to make TCP Socket");
224	+	return NULL;
225	+	}
226	+
227	+	if((get_host_addr(hostname, &haddr))!=0){
228	+	log_msg(LOG_CRIT, "Failed to lookup name for %s", hostname);
229	+	close(sock);
230	+	return NULL;
231	+	}
232	+
233	+	memset(&addr, 0, sizeof(addr));
234	+	addr.sin_family = AF_INET;
235	+	memcpy(&addr.sin_addr, &haddr, sizeof(haddr));
236	+	addr.sin_port = htons(port);
237	+
238	+	log_msg(LOG_DEBUG, "Creating a tcp connection");
239	+	if(connect(sock, (struct sockaddr *)&addr, sizeof(addr)) !=0){
240	+	log_msg(LOG_CRIT, "Failed to connect to hostname %s on port %d", hostname, port);
241	+	close(sock);
242	+	return NULL;
243	+	}
244	+
245	+	if((f=fdopen(sock, "r+"))==NULL){
246	+	log_msg(LOG_CRIT, "Failed to connect to open filedescriptor on tcp connection");
247	+	close(sock);
248	+	return NULL;
249	+	}
250	+
251	+	return f;
252	+	}
253	+
254	+	int tcp_comm(FILE *f, char *send, char **response, char *expected){
255	+
256	+	log_msg(LOG_DEBUG, "Sending %s", send);
257	+	fprintf(f, "%s\n", send);
258	+	fflush(f);
259	+	*response=fpgetline(f);
260	+	fseek(f, 0, SEEK_CUR);
261	+
262	+	if(*response!=NULL) log_msg(LOG_DEBUG, "Recieved %s", *response);
263	+
264	+	if( (*response==NULL) || (strcmp(*response, "ERROR")==0) ) return -1;
265
266	<	reply=sock_comm(fm_fd, "STARTCONFIG\n");
267	<	if ((reply==NULL) || (strncasecmp(reply, "OK", 2) != 0) ) {
268	<	errf("Server error");
266	>	if(expected==NULL) return 0;
267	>
268	>	if((strcmp(expected, *response))==0) return 0;
269	>
270	>	log_msg(LOG_DEBUG, "Did not get expected response");
271	>	return -1;
272	>	}
273	>
274	>	int tcp_comm_strdup(FILE *f, char *send, char **response, char *expected){
275	>	if((tcp_comm(f, send, response, expected))!=0){
276		return -1;
277		}
278
279	<	reply=sock_comm(fm_fd, "LASTMODIFIED\n");
280	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
281	<	errf("Server error (%m)");
279	>	*response=strdup(*response);
280	>	if (response==NULL) return -1;
281	>
282	>	return 0;
283	>	}
284	>
285	>	int ihost_getconfig(ihost_state_t *ihost_state){
286	>
287	>	FILE *tcp_con;
288	>	char *response;
289	>	char *response_ptr;
290	>
291	>	/* Keep these in case of a failure and so it can keep running on the old config */
292	>	char *file_list=NULL;
293	>	char *last_modified=NULL;
294	>	char *host_fqdn=NULL;
295	>	char *host_ip=NULL;
296	>	int udp_update_time=0;
297	>	char *server_fqdn=NULL;
298	>	int server_udp_port=0;
299	>	time_t config_ttl=0;
300	>
301	>	if((tcp_con=create_tcp_connection(ihost_state->filtermanager_host, ihost_state->filtermanager_port))==NULL){
302		return -1;
303		}
304	<	ihost_state->last_modified=atol(reply);
304	>
305	>	if(ihost_state->file_list!=NULL || ihost_state->last_modified!=NULL){
306	>	if(tcp_con==NULL){
307	>	goto error;
308	>	}
309
310	<	reply=sock_comm(fm_fd, "FILELIST\n");
311	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
312	<	errf("Server error (%m)");
313	<	return -1;
310	>	if((tcp_comm(tcp_con, "CHECKCONFIG", &response, "OK"))!=0){
311	>	goto error;
312	>	}
313	>
314	>	if((tcp_comm(tcp_con, ihost_state->file_list, &response, "OK"))!=0){
315	>	goto error;
316	>	}
317	>
318	>	if((tcp_comm(tcp_con, ihost_state->last_modified, &response, "OK"))==0){
319	>	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
320	>	goto error;
321	>	}
322	>	fclose(tcp_con);
323	>	return 0;
324	>	}else{
325	>	if((strcmp(response, "EXPIRED"))!=0){
326	>	goto error;
327	>	}
328	>	}
329		}
330	<	if((ihost_state->files_list=strdup(reply)) == NULL){
331	<	errf("strdup failed (%m)");
332	<	return -1;
330	>
331	>	/* If we got to here, the config must of expired */
332	>
333	>	if((tcp_comm(tcp_con, "STARTCONFIG", &response, "OK"))!=0){
334	>	goto error;
335		}
336
337	<	reply=sock_comm(fm_fd, "FQDN\n");
338	<	if((reply== NULL) || (strncasecmp(reply, "ERROR", 5))){
94	<	errf("Server error (%m)");
95	<	return -1;
337	>	if((tcp_comm_strdup(tcp_con, "LASTMODIFIED", &response, NULL))!=0){
338	>	goto error;
339		}
340	<	if((ihost_state->my_fqdn=strdup(reply)) == NULL){
341	<	errf("strdup failed (%m)");
342	<	return -1;
340	>	last_modified=response;
341	>
342	>	if((tcp_comm_strdup(tcp_con, "FILELIST", &response, NULL))!=0){
343	>	goto error;
344		}
345	+	file_list=response;
346
347	<	reply=sock_comm(fm_fd, "UDPUpdateTime\n");
348	<	if(reply== NULL){
104	<	errf("Server error (%m)");
105	<	return -1;
347	>	if((tcp_comm_strdup(tcp_con, "FQDN", &response, NULL))!=0){
348	>	goto error;
349		}
350	<	if (strncasecmp(reply, "ERROR", 5) != 0){
351	<	ihost_state->udp_update_time=atoi(reply);
350	>	host_fqdn=response;
351	>
352	>	if((tcp_comm_strdup(tcp_con, "IP", &response, NULL))!=0){
353	>	goto error;
354		}
355	+	host_ip=response;
356
357	<	reply=sock_comm(fm_fd, "TCPUpdateTime\n");
358	<	if(reply== NULL){
113	<	errf("Server error (%m)");
114	<	return -1;
357	>	if((tcp_comm(tcp_con, "UDPUpdateTime", &response, NULL))!=0){
358	>	goto error;
359		}
360	<	if (strncasecmp(reply, "ERROR", 5) != 0){
361	<	ihost_state->tcp_update_time=atoi(reply);
360	>	udp_update_time=atoi(response);
361	>
362	>	if((tcp_comm(tcp_con, "ConfigTTL", &response, NULL))!=0){
363	>	goto error;
364		}
365	+	config_ttl=atoi(response);
366
367	<	reply=sock_comm(fm_fd, "ENDCONFIG\n");
368	<	if(reply== NULL){
122	<	errf("Server error (%m)");
123	<	return -1;
367	>	if((tcp_comm(tcp_con, "ENDCONFIG", &response, NULL))!=0){
368	>	goto error;
369		}
370
371	<
371	>	if((tcp_comm(tcp_con, "FILTER", &response, NULL))!=0){
372	>	goto error;
373	>	}else{
374	>	response_ptr=strchr(response,';');
375	>	if(response_ptr==NULL){
376	>	log_msg(LOG_ERR, "Incorrect data sent by server");
377	>	goto error;
378	>	}
379	>	*response_ptr='\0';
380	>	server_fqdn=strdup(response);
381	>	if(server_fqdn==NULL){
382	>	goto error;
383	>	}
384	>	response_ptr++;
385	>	if(response_ptr==NULL){
386	>	log_msg(LOG_ERR, "Incorrect data sent by server");
387	>	goto error;
388	>	}
389
390	+	/*printf("string : %s\n", response_ptr);*/
391	+	server_udp_port=atoi(response_ptr);
392
393	+	if (server_udp_port==0){
394	+	log_msg(LOG_ERR, "Incorrect data sent by server");
395	+	goto error;
396	+	}
397	+	}
398	+
399	+	if((tcp_comm(tcp_con, "END", &response, "OK"))!=0){
400	+	goto error;
401	+	}
402	+
403	+	fclose(tcp_con);
404	+
405	+	/* We have the data we need, and its all been read correctly */
406	+
407	+	/* Free the old data before pointing them to the new data. m_free copes should
408	+	* this already be NULL */
409	+	if(ihost_state->file_list!=NULL) free(ihost_state->file_list);
410	+	if(ihost_state->last_modified!=NULL) free(ihost_state->last_modified);
411	+	if(ihost_state->server_fqdn!=NULL) free(ihost_state->server_fqdn);
412	+
413	+	if(ihost_state->preset_fqdn){
414	+	if(host_fqdn != NULL) free(host_fqdn);
415	+	}else{
416	+	if(ihost_state->host_fqdn!=NULL) free(ihost_state->host_fqdn);
417	+	ihost_state->host_fqdn=host_fqdn;
418	+	}
419	+
420	+	if(ihost_state->preset_ip){
421	+	if(host_ip != NULL) free(host_ip);
422	+	}else{
423	+	if(ihost_state->host_ip!=NULL) free(ihost_state->host_ip);
424	+	ihost_state->host_ip=host_ip;
425	+	}
426	+
427	+
428	+	ihost_state->file_list=file_list;
429	+	ihost_state->last_modified=last_modified;
430	+	ihost_state->server_fqdn=server_fqdn;
431	+	ihost_state->server_udp_port=server_udp_port;
432	+	ihost_state->udp_update_time=udp_update_time;
433	+	ihost_state->config_ttl=config_ttl;
434	+
435	+	log_msg(LOG_DEBUG, "UDP Update time %d", udp_update_time);
436	+	log_msg(LOG_DEBUG, "Configure ttl %d", config_ttl);
437	+
438		return 0;
439
440	+	error:
441	+
442	+	if(file_list!=NULL) free(file_list);
443	+	if(last_modified!=NULL) free(last_modified);
444	+	if(host_fqdn!=NULL) free(host_fqdn);
445	+	if(server_fqdn!=NULL) free(server_fqdn);
446	+	if(host_ip!=NULL) free(host_ip);
447	+	fclose(tcp_con);
448	+
449	+	return -1;
450		}
451
452	<	int main(){
452	>	int get_system_stats(int seq_no, ihost_state_t *ihost_state, char *xml, int size){
453	>	char tmp[size];
454	>	cpu_percent_t *cpu_percent;
455	>	mem_stat_t *mem_stats;
456	>	load_stat_t *load_stats;
457	>	user_stat_t *user_stats;
458	>	swap_stat_t *swap_stats;
459	>	general_stat_t *general_stats;
460	>	disk_stat_t *disk_stats;
461	>	diskio_stat_t *diskio_stats;
462	>	process_stat_t *process_stats;
463	>	network_stat_t *network_stats;
464	>	page_stat_t *page_stats;
465	>	int disk_entries=0;
466	>	int diskio_entries=0;
467	>	int network_entries=0;
468
469	+	int counter;
470	+	long long x;
471	+	long long y;
472	+
473	+	/* Print start of the packet we want */
474	+	snprintf(xml, size, "<packet seq_no=\"%d\" machine_name=\"%s\" date=\"%ld\" type=\"data\" ip=\"%s\">", \
475	+	seq_no, ihost_state->host_fqdn, time(NULL), ihost_state->host_ip);
476	+
477	+	/* Get cpu stats, check it is correct, then fill in its entry for the xml */
478	+	if((cpu_percent=cpu_percent_usage())==NULL){
479	+	log_msg(LOG_CRIT, "Failed to get cpu statistics");
480	+	}else{
481	+	snprintf(tmp, size, \
482	+	"<cpu><user>%3.2f</user><kernel>%3.2f</kernel><idle>%3.2f</idle><iowait>%3.2f</iowait><swap>%3.2f</swap></cpu>", \
483	+	cpu_percent->user, \
484	+	cpu_percent->kernel, \
485	+	cpu_percent->idle, \
486	+	cpu_percent->iowait, \
487	+	cpu_percent->swap);
488	+
489	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
490	+	}
491	+
492	+
493	+	/*Get mem stats, and fill in xml */
494	+	if((mem_stats=get_memory_stats())==NULL){
495	+	log_msg(LOG_CRIT, "Failed to get memory statistics");
496	+	}else{
497	+	snprintf(tmp, size, \
498	+	"<memory><total>%lld</total><free>%lld</free><used>%lld</used><cache>%lld</cache></memory>", \
499	+	mem_stats->total, \
500	+	mem_stats->free, \
501	+	mem_stats->used, \
502	+	mem_stats->cache);
503	+
504	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
505	+	}
506	+
507	+
508	+	/* Get load stats */
509	+	if((load_stats=get_load_stats())==NULL){
510	+	log_msg(LOG_CRIT, "Failed to get load statistics");
511	+	}else{
512	+	snprintf(tmp, size, \
513	+	"<load><load1>%.2lf</load1><load5>%.2lf</load5><load15>%.2lf</load15></load>", \
514	+	load_stats->min1, \
515	+	load_stats->min5, \
516	+	load_stats->min15);
517	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
518	+	}
519	+
520	+
521	+	/* get user stats */
522	+
523	+	if((user_stats=get_user_stats())==NULL){
524	+	log_msg(LOG_CRIT, "Failed to get user statistics");
525	+	}else{
526	+
527	+	snprintf(tmp, size, \
528	+	"<users><list>%s</list><count>%d</count></users>", \
529	+	user_stats->name_list, \
530	+	user_stats->num_entries);
531	+
532	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
533	+	}
534	+
535	+
536	+	/* swap stats */
537	+	if((swap_stats=get_swap_stats())==NULL){
538	+	log_msg(LOG_CRIT, "Failed to get swap statistics");
539	+	}else{
540	+	snprintf(tmp, size, \
541	+	"<swap><total>%lld</total><used>%lld</used><free>%lld</free></swap>",\
542	+	swap_stats->total, \
543	+	swap_stats->used, \
544	+	swap_stats->free);
545	+
546	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
547	+	}
548	+
549	+
550	+	/* general stats */
551	+
552	+	if((general_stats=get_general_stats())==NULL){
553	+	log_msg(LOG_CRIT, "Failed to get general statistics");
554	+	}else{
555	+	snprintf(tmp, size, \
556	+	"<os><name>%s</name><release>%s</release><version>%s</version><sysname>%s</sysname><platform>%s</platform><uptime>%ld</uptime></os>", \
557	+	general_stats->os_name, \
558	+	general_stats->os_release, \
559	+	general_stats->os_version, \
560	+	general_stats->hostname, \
561	+	general_stats->platform, \
562	+	(long)general_stats->uptime);
563	+
564	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
565	+
566	+	}
567	+
568	+
569	+	/* process stats */
570	+	if((process_stats=get_process_stats())==NULL){
571	+	log_msg(LOG_CRIT, "Failed to get general statistics");
572	+	}else{
573	+	snprintf(tmp, size, \
574	+	"<processes><sleeping>%d</sleeping><cpu>%d</cpu><zombie>%d</zombie><stopped>%d</stopped><total>%d</total></processes>",\
575	+	process_stats->sleeping, \
576	+	process_stats->running, \
577	+	process_stats->zombie, \
578	+	process_stats->stopped, \
579	+	process_stats->total);
580	+
581	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
582	+
583	+	}
584	+
585	+
586	+	/* Get paging stats */
587	+	if((page_stats=get_page_stats_diff())==NULL){
588	+	log_msg(LOG_CRIT, "Failed to get paging statistics");
589	+	}else{
590	+	if(page_stats->systime!=0){
591	+	x=page_stats->pages_pagein / page_stats->systime;
592	+	y=page_stats->pages_pageout / page_stats->systime;
593	+	}else{
594	+	x=page_stats->pages_pagein;
595	+	y=page_stats->pages_pageout;
596	+	}
597	+	snprintf(tmp, size, \
598	+	"<pages><pageins>%lld</pageins><pageouts>%lld</pageouts></pages>", \
599	+	x, \
600	+	y);
601	+
602	+	if(strlcat(xml, tmp, size) >= size) goto too_big_error;
603	+	}
604	+
605	+
606	+	/* get diskio stats */
607	+
608	+	if((diskio_stats=get_diskio_stats_diff(&diskio_entries))==NULL){
609	+	log_msg(LOG_CRIT, "Failed to get diskio statistics");
610	+	}else{
611	+	strlcat(xml, "<diskio>", size);
612	+	for(counter=0;counter<diskio_entries;counter++){
613	+
614	+	if(diskio_stats->systime!=0){
615	+	x=diskio_stats->read_bytes / diskio_stats->systime;
616	+	y=diskio_stats->write_bytes / diskio_stats->systime;
617	+	}else{
618	+	x=diskio_stats->read_bytes;
619	+	y=diskio_stats->write_bytes;
620	+	}
621	+
622	+	snprintf(tmp, size, \
623	+	"<p%d name=\"%s\" rbytes=\"%lld\" wbytes=\"%lld\"></p%d>", \
624	+	counter, \
625	+	diskio_stats->disk_name, \
626	+	x, \
627	+	y, \
628	+	counter);
629	+
630	+	strlcat(xml, tmp, size);
631	+	diskio_stats++;
632	+	}
633	+
634	+	if(strlcat(xml, "</diskio>", size) >= size) goto too_big_error;
635	+
636	+	}
637	+
638	+
639	+	/* get networks stats */
640	+
641	+	if((network_stats=get_network_stats_diff(&network_entries))==NULL){
642	+	log_msg(LOG_CRIT, "Failed to get network statistics");
643	+	}else{
644	+	strlcat(xml, "<net>", size);
645	+	for(counter=0;counter<network_entries;counter++){
646	+	if(network_stats->systime!=0){
647	+	x=network_stats->rx / network_stats->systime;
648	+	y=network_stats->tx / network_stats->systime;
649	+	}else{
650	+	x=network_stats->rx;
651	+	y=network_stats->tx;
652	+	}
653	+
654	+	snprintf(tmp, size, \
655	+	"<p%d name=\"%s\" rx=\"%lld\" tx=\"%lld\"></p%d>", \
656	+	counter, \
657	+	network_stats->interface_name, \
658	+	x, \
659	+	y, \
660	+	counter);
661	+
662	+	strlcat(xml, tmp, size);
663	+	network_stats++;
664	+	}
665	+
666	+	if(strlcat(xml, "</net>", size) >= size) goto too_big_error;
667	+
668	+	}
669	+
670	+
671	+	/* get disk stats */
672	+
673	+	if((disk_stats=get_disk_stats(&disk_entries))==NULL){
674	+	log_msg(LOG_CRIT, "Failed to get disk statistics");
675	+	}else{
676	+	strlcat(xml, "<disk>", size);
677	+	for(counter=0;counter<disk_entries;counter++){
678	+	snprintf(tmp, size, \
679	+	"<p%d name=\"%s\" mount=\"%s\" fstype=\"%s\" total=\"%lld\" used=\"%lld\" avail=\"%lld\" totalinodes=\"%lld\" usedinodes=\"%lld\" freeinodes=\"%lld\"></p%d>", \
680	+	counter, \
681	+	disk_stats->device_name, \
682	+	disk_stats->mnt_point, \
683	+	disk_stats->fs_type, \
684	+	disk_stats->size, \
685	+	disk_stats->used, \
686	+	disk_stats->avail, \
687	+	disk_stats->total_inodes, \
688	+	disk_stats->used_inodes, \
689	+	disk_stats->free_inodes, \
690	+	counter);
691	+
692	+	strlcat(xml, tmp, size);
693	+
694	+	disk_stats++;
695	+	}
696	+
697	+	if(strlcat(xml, "</disk>", size) >= size) goto too_big_error;
698	+
699	+	}
700	+
701	+
702	+	if(strlcat(xml, "</packet>", size) >= size) goto too_big_error;
703	+
704	+	/*If we got to here, it should of all been filled in nicely now */
705		return 0;
706	+
707	+	too_big_error:
708	+	log_msg(LOG_ERR, "UDP Packet is too large. Throwing away the packet");
709	+	return -1;
710		}
711
712	+
713	+
714	+	void usage(char *progname){
715	+	fprintf(stderr, "Usage %s [-v[v]] [-f] [-n name] [-i ip] [-s server] [-p port] [-V] [-h]\n\n", progname);
716	+	fprintf(stderr, "  -v    Verbose mode, -vv would make even more verbose\n");
717	+	fprintf(stderr, "  -f    Foreground mode, print errors to stderr\n");
718	+	fprintf(stderr, "  -n    Set the machine name to be reported as\n");
719	+	fprintf(stderr, "  -i    Set the IP to be reported as\n");
720	+	fprintf(stderr, "  -s    Specifies the i-scream server to connect to\n");
721	+	fprintf(stderr, "          default: %s\n", DEF_SERVER_NAME);
722	+	fprintf(stderr, "  -p    Specifies the i-scream server port\n");
723	+	fprintf(stderr, "          default: %d\n", DEF_SERVER_PORT);
724	+	fprintf(stderr, "  -V    Print version number\n");
725	+	fprintf(stderr, "  -h    Prints this help page\n");
726	+	fprintf(stderr, "\nReport bugs to <%s>.\n", PACKAGE_BUGREPORT);
727	+	exit(1);
728	+	}
729	+
730	+	int main(int argc, char **argv){
731	+
732	+	ihost_state_t ihost_state;
733	+	udp_sockinfo_t udp_sockinfo;
734	+
735	+	int cmdopt;
736	+	extern int optind;
737	+	pid_t pid;
738	+	FILE *f;
739	+	int packet_num=0;
740	+	int len;
741	+
742	+	char packet[MAX_UDP_PACKET_SIZE];
743	+
744	+	time_t cur_time, sleep_delay, udp_time=0, config_time=0;
745	+
746	+	/* Set default settings */
747	+	ihost_config.verbose=1;
748	+	ihost_config.daemon=1;
749	+	/* Set all errors to go down stderr until told otherwise */
750	+	ihost_config.log=stderr;
751	+
752	+	/* Blank ihost_state to default settings */
753	+	ihost_state.filtermanager_host=DEF_SERVER_NAME;
754	+	ihost_state.filtermanager_port=DEF_SERVER_PORT;
755	+	ihost_state.host_fqdn=NULL;
756	+	ihost_state.host_ip=NULL;
757	+	ihost_state.preset_fqdn = 0;
758	+	ihost_state.preset_ip = 0;
759	+	ihost_state.server_fqdn=NULL;
760	+	ihost_state.file_list=NULL;
761	+	ihost_state.last_modified=NULL;
762	+
763	+	while((cmdopt=getopt(argc, argv, "vfhVs:i:")) != -1){
764	+	switch(cmdopt){
765	+	case 'v':
766	+	ihost_config.verbose++;
767	+	break;
768	+
769	+	case 'f':
770	+	/* Force syslog logging since stderr will be closed in this case */
771	+	ihost_config.daemon=0;
772	+	break;
773	+
774	+	case 'V':
775	+	fprintf(stderr, "%s version %s\n", argv[0], VERSION);
776	+	break;
777	+	case 'n':
778	+	ihost_state.preset_fqdn = 1;
779	+	ihost_state.host_fqdn = strdup(optarg);
780	+	if(ihost_state.host_fqdn == NULL){
781	+	fprintf(stderr, "Missing hostname\n");
782	+	usage(argv[0]);
783	+	}
784	+	break;
785	+	case 'i':
786	+	/* Hmm.. Someone could set any string to be the IP, and it will let it */
787	+	ihost_state.preset_ip = 1;
788	+	ihost_state.host_ip = strdup(optarg);
789	+	if(ihost_state.host_ip == NULL){
790	+	fprintf(stderr, "Missing ip\n");
791	+	usage(argv[0]);
792	+	}
793	+	break;
794	+
795	+	case 's':
796	+	ihost_state.filtermanager_host=strdup(optarg);
797	+	break;
798	+
799	+	case 'p':
800	+	ihost_state.filtermanager_port=atoi(optarg);
801	+	break;
802	+
803	+	case 'h':
804	+	default:
805	+	usage(argv[0]);
806	+	exit(1);
807	+	}
808	+	}
809	+
810	+	if(gethostbyname(ihost_state.filtermanager_host)==NULL){
811	+	log_msg(LOG_CRIT, "Failed to lookup hostname. Please check settings");
812	+	exit(1);
813	+	}
814	+	if(ihost_state.filtermanager_port==0){
815	+	log_msg(LOG_ERR, "Invalid port number");
816	+	exit(1);
817	+	}
818	+
819	+	if(ihost_config.daemon){
820	+	pid=fork();
821	+	if(pid==-1){
822	+	log_msg(LOG_CRIT, "Failed to background exiting");
823	+	exit(1);
824	+	}else if(pid!=0){
825	+	/* Parent process */
826	+	return 0;
827	+	}
828	+	/* We should now be in the background*/
829	+	if(setsid()==-1){
830	+	log_msg(LOG_CRIT, "setsid failed");
831	+	exit(1);
832	+	}
833	+
834	+	if((ihost_config.log=fopen(LOG_FILE, "a"))==NULL){
835	+	ihost_config.log=stderr;
836	+	log_msg(LOG_CRIT, "Failed to open Logfiles %s for writing", LOG_FILE);
837	+	exit(1);
838	+	}
839	+
840	+	fclose(stdin);
841	+	fclose(stdout);
842	+	fclose(stderr);
843	+
844	+	}
845	+
846	+	log_msg(LOG_INFO, "Starting ihost...");
847	+
848	+	log_msg(LOG_DEBUG, "Running statgrab_init()");
849	+	if(!statgrab_init()){
850	+	log_msg(LOG_CRIT, "statgrab_init failed (%m)");
851	+	exit(1);
852	+	}
853	+
854	+	log_msg(LOG_DEBUG,"Writing PID FILE");
855	+
856	+	pid=getpid();
857	+
858	+	if((f=fopen(PID_FILE,"w")) == NULL){
859	+	log_msg(LOG_CRIT, "Failed to write PID file");
860	+	}else{
861	+	if((fprintf(f,"%d",(int)pid)) <= 0 ){
862	+	log_msg(LOG_CRIT, "Failed to write PID file");
863	+	}
864	+	if((fclose(f))!=0){
865	+	log_msg(LOG_CRIT, "failed to close PID file");
866	+	}
867	+	}
868	+
869	+
870	+	/* Get the initial config from the filter manager. Should this fail,
871	+	* wait, and then try again. */
872	+
873	+	get_diskio_stats_diff(&packet_num);
874	+	packet_num=0;
875	+
876	+	while(ihost_getconfig(&ihost_state)!=0){
877	+	log_msg(LOG_ERR, "Failed to get ihost config");
878	+	sleep(10);
879	+	}
880	+
881	+	/*printf("%s\n%d\n", ihost_state.server_fqdn, ihost_state.server_udp_port);*/
882	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
883	+	log_msg(LOG_ERR, "Failed to create udp socket");
884	+	sleep(10);
885	+	}
886	+
887	+	config_time=time(NULL)+ihost_state.config_ttl;
888	+
889	+	/* Now have config.. collect data and send as often as required */
890	+	for(;;){
891	+	cur_time=time(NULL);
892	+
893	+	if(cur_time>=udp_time){
894	+	if((get_system_stats(packet_num++, &ihost_state, packet, MAX_UDP_PACKET_SIZE))!=0){
895	+	log_msg(LOG_ERR, "Failed to get system stats");
896	+	}
897	+
898	+	len=strlen(packet);
899	+	log_msg(LOG_DEBUG, "Packet size: %d\nPacket: %s\n", len, packet);
900	+
901	+	if((sendto(udp_sockinfo.sock, packet, len, 0, (struct sockaddr *) &udp_sockinfo.addr, sizeof(udp_sockinfo.addr)))!=len){
902	+	log_msg(LOG_CRIT, "Failed to send packet");
903	+	}
904	+	udp_time=cur_time+ihost_state.udp_update_time;
905	+	log_msg(LOG_DEBUG, "Next packet should be sent on %d", udp_time);
906	+	}
907	+
908	+	if(cur_time>=config_time){
909	+	if(ihost_getconfig(&ihost_state)!=0){
910	+	/* If we can't get the config, try again 5 minutes time */
911	+	log_msg(LOG_ERR, "Failed to get config, try again 5 minutes time");
912	+	config_time=time(NULL)+300;
913	+	}else{
914	+	close(udp_sockinfo.sock);
915	+
916	+	while((create_udp_sockinfo(&udp_sockinfo, ihost_state.server_fqdn, ihost_state.server_udp_port))!=0){
917	+	log_msg(LOG_CRIT, "Failed to create udp socket");
918	+	sleep(10);
919	+	}
920	+
921	+	config_time=time(NULL)+ihost_state.config_ttl;
922	+
923	+	log_msg(LOG_DEBUG, "Config expires on %d\n", ihost_state.config_ttl);
924	+	}
925	+	}
926	+
927	+	sleep_delay=udp_time-time(NULL);
928	+	log_msg(LOG_DEBUG, "Sleeping for %d", sleep_delay);
929	+	if(sleep_delay>0) sleep(sleep_delay);
930	+	}
931	+
932	+	return(0);
933	+	}

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