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root/i-scream/projects/libstatgrab/src/libstatgrab/tools.c

Comparing projects/libstatgrab/src/libstatgrab/tools.c (file contents):
Revision 1.1 by pajs, Tue Mar 4 18:07:42 2003 UTC vs.
Revision 1.17 by pajs, Mon Jan 5 14:21:07 2004 UTC

#	Line 1 | Line 1
1	+	/*
2	+	* i-scream central monitoring system
3	+	* http://www.i-scream.org
4	+	* Copyright (C) 2000-2003 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>
26		#include <string.h>
27	+	#include <stdlib.h>
28	+	#include <sys/types.h>
29	+	#include <regex.h>
30	+	#ifdef ALLBSD
31	+	#include <fcntl.h>
32	+	#include <kvm.h>
33	+	#endif
34	+	#ifdef NETBSD
35	+	#include <uvm/uvm_extern.h>
36	+	#endif
37
38	+	#include "tools.h"
39	+
40	+	#ifdef SOLARIS
41	+	#include <libdevinfo.h>
42	+	#include <kstat.h>
43	+	#include <unistd.h>
44	+	#include <ctype.h>
45	+	#include <sys/types.h>
46	+	#include <sys/dkio.h>
47	+	#include <sys/stat.h>
48	+	#include <fcntl.h>
49	+	#include <sys/fcntl.h>
50	+	#include <dirent.h>
51	+	#endif
52	+
53	+	#ifdef SOLARIS
54	+	struct map{
55	+	char *bsd;
56	+	char *svr;
57	+
58	+	struct map *next;
59	+	};
60	+	typedef struct map mapping_t;
61	+
62	+	static mapping_t *mapping = NULL;
63	+
64	+	char *get_svr_from_bsd(char *bsd){
65	+	mapping_t *map_ptr;
66	+	for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
67	+	if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;
68	+
69	+	return bsd;
70	+	}
71	+
72	+	void add_mapping(char *bsd, char *svr){
73	+	mapping_t *map_ptr;
74	+	mapping_t *map_end_ptr;
75	+
76	+	bsd = strdup(bsd);
77	+	svr = strdup(svr);
78	+
79	+	if (mapping == NULL){
80	+	mapping = malloc(sizeof(mapping_t));
81	+	if (mapping == NULL) return;
82	+	map_ptr = mapping;
83	+	}else{
84	+	/* See if its already been added */
85	+	for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){
86	+	if( (!strcmp(map_ptr->bsd, bsd)) || (!strcmp(map_ptr->svr, svr)) ){
87	+	return;
88	+	}
89	+	map_end_ptr = map_ptr;
90	+	}
91	+
92	+	/* We've reached end of list and not found the entry.. So we need to malloc
93	+	* new mapping_t
94	+	*/
95	+	map_end_ptr->next = malloc(sizeof(mapping_t));
96	+	if (map_end_ptr->next == NULL) return;
97	+	map_ptr = map_end_ptr->next;
98	+	}
99	+
100	+	map_ptr->next = NULL;
101	+	map_ptr->bsd = bsd;
102	+	map_ptr->svr = svr;
103	+
104	+	return;
105	+	}
106	+
107	+	char *read_dir(char *disk_path){
108	+	DIR *dirp;
109	+	struct dirent *dp;
110	+	struct stat stbuf;
111	+	char *svr_name;
112	+	char current_dir[MAXPATHLEN];
113	+	char file_name[MAXPATHLEN];
114	+	char temp_name[MAXPATHLEN];
115	+	char dir_dname[MAXPATHLEN];
116	+	char *dsk_dir;
117	+	int x;
118	+
119	+	dsk_dir = "/dev/osa/dev/dsk";
120	+	strncpy(current_dir, dsk_dir, sizeof current_dir);
121	+	if ((dirp = opendir(current_dir)) == NULL){
122	+	dsk_dir = "/dev/dsk";
123	+	snprintf(current_dir, sizeof current_dir, "%s", dsk_dir);
124	+	if ((dirp = opendir(current_dir)) == NULL){
125	+	return NULL;
126	+	}
127	+	}
128	+
129	+	while ((dp = readdir(dirp)) != NULL){
130	+	snprintf(temp_name, sizeof temp_name, "../..%s", disk_path);
131	+	snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name);
132	+	stat(dir_dname,&stbuf);
133	+
134	+	if (S_ISBLK(stbuf.st_mode)){
135	+	x = readlink(dir_dname, file_name, sizeof(file_name));
136	+	file_name[x] = '\0';
137	+	if (strcmp(file_name, temp_name) == 0) {
138	+	svr_name = strdup(dp->d_name);
139	+	closedir(dirp);
140	+	return svr_name;
141	+	}
142	+	}
143	+	}
144	+	closedir(dirp);
145	+	return NULL;
146	+	}
147	+
148	+
149	+
150	+	int get_alias(char *alias){
151	+	char file[MAXPATHLEN];
152	+	di_node_t root_node;
153	+	di_node_t node;
154	+	di_minor_t minor = DI_MINOR_NIL;
155	+	char tmpnode[MAXPATHLEN];
156	+	char *phys_path;
157	+	char *minor_name;
158	+	char *value;
159	+	int instance;
160	+	if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
161	+	return 1;
162	+	}
163	+	node = di_drv_first_node(alias, root_node);
164	+	while (node != DI_NODE_NIL) {
165	+	if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) {
166	+	instance = di_instance(node);
167	+	phys_path = di_devfs_path(node);
168	+	minor_name = di_minor_name(minor);
169	+	strcpy(tmpnode, alias);
170	+	sprintf(tmpnode, "%s%d", tmpnode, instance);
171	+	strlcpy(file, "/devices", sizeof file);
172	+	strlcat(file, phys_path, sizeof file);
173	+	strlcat(file, ":", sizeof file);
174	+	strlcat(file, minor_name, sizeof file);
175	+	value = read_dir(file);
176	+	if (value != NULL){
177	+	add_mapping(tmpnode, value);
178	+	}
179	+	di_devfs_path_free(phys_path);
180	+	node = di_drv_next_node(node);
181	+	}else{
182	+	node = di_drv_next_node(node);
183	+	}
184	+	}
185	+	di_fini(root_node);
186	+	return 0;
187	+	}
188	+
189	+	int build_mapping(){
190	+	char device_name[512];
191	+	int x;
192	+	kstat_ctl_t *kc;
193	+	kstat_t *ksp;
194	+	kstat_io_t kios;
195	+
196	+	if ((kc = kstat_open()) == NULL) {
197	+	return;
198	+	}
199	+
200	+	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
201	+	if (!strcmp(ksp->ks_class, "disk")) {
202	+	if(ksp->ks_type != KSTAT_TYPE_IO) continue;
203	+	/* We dont want metadevices appearing as num_diskio */
204	+	if(strcmp(ksp->ks_module, "md")==0) continue;
205	+	if((kstat_read(kc, ksp, &kios))==-1) continue;
206	+	strncpy(device_name, ksp->ks_name, sizeof device_name);
207	+	for(x=0;x<(sizeof device_name);x++){
208	+	if( isdigit((int)device_name[x]) ) break;
209	+	}
210	+	if(x == sizeof device_name) x--;
211	+	device_name[x] = '\0';
212	+	if((get_alias(device_name)) != 0){
213	+	return 1;
214	+	}
215	+	}
216	+	}
217	+
218	+	return 0;
219	+	}
220	+
221	+	#endif
222	+
223	+
224	+
225		char *f_read_line(FILE *f, const char *string){
226		/* Max line length. 8k should be more than enough */
227		static char line[8192];
228
229	<	while((fgets(line, sizeof(line), f))==NULL){
9	<
229	>	while((fgets(line, sizeof(line), f))!=NULL){
230		if(strncmp(string, line, strlen(string))==0){
231		return line;
232		}
233		}
234
235		return NULL;
236	+	}
237	+
238	+	char *get_string_match(char *line, regmatch_t *match){
239	+	int len=match->rm_eo - match->rm_so;
240	+	char *match_string=malloc(len+1);
241	+
242	+	match_string=strncpy(match_string, line+match->rm_so, len);
243	+	match_string[len]='\0';
244	+
245	+	return match_string;
246	+	}
247	+
248	+
249	+
250	+	#ifndef HAVE_ATOLL
251	+	static long long atoll(const char *s) {
252	+	long long value = 0;
253	+	int isneg = 0;
254	+
255	+	while (*s == ' ' || *s == '\t') {
256	+	s++;
257	+	}
258	+	if (*s == '-') {
259	+	isneg = 1;
260	+	s++;
261	+	}
262	+	while (*s >= '0' && *s <= '9') {
263	+	value = (10 * value) + (*s - '0');
264	+	s++;
265	+	}
266	+	return (isneg ? -value : value);
267	+	}
268	+	#endif
269	+
270	+	long long get_ll_match(char *line, regmatch_t *match){
271	+	char *ptr;
272	+	long long num;
273	+
274	+	ptr=line+match->rm_so;
275	+	num=atoll(ptr);
276	+
277	+	return num;
278	+	}
279	+
280	+	#ifdef ALLBSD
281	+	kvm_t *get_kvm() {
282	+	static kvm_t *kvmd = NULL;
283	+
284	+	if (kvmd != NULL) {
285	+	return kvmd;
286	+	}
287	+
288	+	kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
289	+	return kvmd;
290	+	}
291	+	#endif
292	+
293	+	#ifdef NETBSD
294	+	struct uvmexp *get_uvmexp() {
295	+	static u_long addr = 0;
296	+	static struct uvmexp uvm;
297	+	kvm_t *kvmd = get_kvm();
298	+
299	+	if (kvmd == NULL) {
300	+	return NULL;
301	+	}
302	+
303	+	if (addr == 0) {
304	+	struct nlist symbols[] = {
305	+	{ "_uvmexp" },
306	+	{ NULL }
307	+	};
308	+
309	+	if (kvm_nlist(kvmd, symbols) != 0) {
310	+	return NULL;
311	+	}
312	+	addr = symbols[0].n_value;
313	+	}
314	+
315	+	if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
316	+	return NULL;
317	+	}
318	+	return &uvm;
319	+	}
320	+	#endif
321	+
322	+	int statgrab_init(){
323	+	#ifdef ALLBSD
324	+	{
325	+	kvm_t *kvmd = get_kvm();
326	+	if (kvmd == NULL) return 1;
327	+	}
328	+	#endif
329	+	#ifdef NETBSD
330	+	{
331	+	struct uvmexp *uvm = get_uvmexp();
332	+	if (uvm == NULL) return 1;
333	+	}
334	+	#endif
335	+	#ifdef SOLARIS
336	+	if((build_mapping()) != 0) return 1;
337	+	#endif
338	+	return 0;
339		}

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