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

Comparing projects/libstatgrab/src/libstatgrab/tools.c (file contents):
Revision 1.6 by tdb, Sun Aug 24 20:24:09 2003 UTC vs.
Revision 1.22 by pajs, Thu Jan 15 22:21:37 2004 UTC

#	Line 25 | Line 25
25		#include <stdio.h>
26		#include <string.h>
27		#include <stdlib.h>
28	+	#include <unistd.h>
29		#include <sys/types.h>
30		#include <regex.h>
31	+	#ifdef ALLBSD
32	+	#include <fcntl.h>
33	+	#include <kvm.h>
34	+	#endif
35	+	#ifdef NETBSD
36	+	#include <uvm/uvm_extern.h>
37	+	#endif
38
39	+	#include "tools.h"
40	+
41	+	#ifdef SOLARIS
42	+	#include <libdevinfo.h>
43	+	#include <kstat.h>
44	+	#include <unistd.h>
45	+	#include <ctype.h>
46	+	#include <sys/types.h>
47	+	#include <sys/dkio.h>
48	+	#include <sys/stat.h>
49	+	#include <fcntl.h>
50	+	#include <sys/fcntl.h>
51	+	#include <dirent.h>
52	+	#endif
53	+
54	+	#ifdef SOLARIS
55	+	struct map{
56	+	char *bsd;
57	+	char *svr;
58	+
59	+	struct map *next;
60	+	};
61	+	typedef struct map mapping_t;
62	+
63	+	static mapping_t *mapping = NULL;
64	+
65	+	char *get_svr_from_bsd(char *bsd){
66	+	mapping_t *map_ptr;
67	+	for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
68	+	if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;
69	+
70	+	return bsd;
71	+	}
72	+
73	+	void add_mapping(char *bsd, char *svr){
74	+	mapping_t *map_ptr;
75	+	mapping_t *map_end_ptr;
76	+
77	+	bsd = strdup(bsd);
78	+	svr = strdup(svr);
79	+
80	+	if (mapping == NULL){
81	+	mapping = malloc(sizeof(mapping_t));
82	+	if (mapping == NULL) return;
83	+	map_ptr = mapping;
84	+	}else{
85	+	/* See if its already been added */
86	+	for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){
87	+	if( (!strcmp(map_ptr->bsd, bsd)) || (!strcmp(map_ptr->svr, svr)) ){
88	+	return;
89	+	}
90	+	map_end_ptr = map_ptr;
91	+	}
92	+
93	+	/* We've reached end of list and not found the entry.. So we need to malloc
94	+	* new mapping_t
95	+	*/
96	+	map_end_ptr->next = malloc(sizeof(mapping_t));
97	+	if (map_end_ptr->next == NULL) return;
98	+	map_ptr = map_end_ptr->next;
99	+	}
100	+
101	+	map_ptr->next = NULL;
102	+	map_ptr->bsd = bsd;
103	+	map_ptr->svr = svr;
104	+
105	+	return;
106	+	}
107	+
108	+	char *read_dir(char *disk_path){
109	+	DIR *dirp;
110	+	struct dirent *dp;
111	+	struct stat stbuf;
112	+	char *svr_name;
113	+	char current_dir[MAXPATHLEN];
114	+	char file_name[MAXPATHLEN];
115	+	char temp_name[MAXPATHLEN];
116	+	char dir_dname[MAXPATHLEN];
117	+	char *dsk_dir;
118	+	int x;
119	+
120	+	dsk_dir = "/dev/osa/dev/dsk";
121	+	strncpy(current_dir, dsk_dir, sizeof current_dir);
122	+	if ((dirp = opendir(current_dir)) == NULL){
123	+	dsk_dir = "/dev/dsk";
124	+	snprintf(current_dir, sizeof current_dir, "%s", dsk_dir);
125	+	if ((dirp = opendir(current_dir)) == NULL){
126	+	return NULL;
127	+	}
128	+	}
129	+
130	+	while ((dp = readdir(dirp)) != NULL){
131	+	snprintf(temp_name, sizeof temp_name, "../..%s", disk_path);
132	+	snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name);
133	+	stat(dir_dname,&stbuf);
134	+
135	+	if (S_ISBLK(stbuf.st_mode)){
136	+	x = readlink(dir_dname, file_name, sizeof(file_name));
137	+	file_name[x] = '\0';
138	+	if (strcmp(file_name, temp_name) == 0) {
139	+	svr_name = strdup(dp->d_name);
140	+	closedir(dirp);
141	+	return svr_name;
142	+	}
143	+	}
144	+	}
145	+	closedir(dirp);
146	+	return NULL;
147	+	}
148	+
149	+
150	+
151	+	int get_alias(char *alias){
152	+	char file[MAXPATHLEN];
153	+	di_node_t root_node;
154	+	di_node_t node;
155	+	di_minor_t minor = DI_MINOR_NIL;
156	+	char tmpnode[MAXPATHLEN];
157	+	char *phys_path;
158	+	char *minor_name;
159	+	char *value;
160	+	int instance;
161	+	if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
162	+	return 1;
163	+	}
164	+	node = di_drv_first_node(alias, root_node);
165	+	while (node != DI_NODE_NIL) {
166	+	if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) {
167	+	instance = di_instance(node);
168	+	phys_path = di_devfs_path(node);
169	+	minor_name = di_minor_name(minor);
170	+	strcpy(tmpnode, alias);
171	+	sprintf(tmpnode, "%s%d", tmpnode, instance);
172	+	strlcpy(file, "/devices", sizeof file);
173	+	strlcat(file, phys_path, sizeof file);
174	+	strlcat(file, ":", sizeof file);
175	+	strlcat(file, minor_name, sizeof file);
176	+	value = read_dir(file);
177	+	if (value != NULL){
178	+	add_mapping(tmpnode, value);
179	+	}
180	+	di_devfs_path_free(phys_path);
181	+	node = di_drv_next_node(node);
182	+	}else{
183	+	node = di_drv_next_node(node);
184	+	}
185	+	}
186	+	di_fini(root_node);
187	+	return 0;
188	+	}
189	+
190	+
191	+	#define BIG_ENOUGH 512
192	+	int build_mapping(){
193	+	char device_name[BIG_ENOUGH];
194	+	int x;
195	+	kstat_ctl_t *kc;
196	+	kstat_t *ksp;
197	+	kstat_io_t kios;
198	+
199	+	char driver_list[BIG_ENOUGH][BIG_ENOUGH];
200	+	int list_entries = 0;
201	+	int found;
202	+
203	+	if ((kc = kstat_open()) == NULL) {
204	+	return;
205	+	}
206	+
207	+	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
208	+	if (!strcmp(ksp->ks_class, "disk")) {
209	+	if(ksp->ks_type != KSTAT_TYPE_IO) continue;
210	+	/* We dont want metadevices appearing as num_diskio */
211	+	if(strcmp(ksp->ks_module, "md")==0) continue;
212	+	if((kstat_read(kc, ksp, &kios))==-1) continue;
213	+	strncpy(device_name, ksp->ks_name, sizeof device_name);
214	+	for(x=0;x<(sizeof device_name);x++){
215	+	if( isdigit((int)device_name[x]) ) break;
216	+	}
217	+	if(x == sizeof device_name) x--;
218	+	device_name[x] = '\0';
219	+
220	+	/* Check if we've not already looked it up */
221	+	found = 0;
222	+	for(x=0;x<list_entries;x++){
223	+	if (x>=BIG_ENOUGH){
224	+	/* We've got bigger than we thought was massive */
225	+	/* If we hit this.. Make big enough bigger */
226	+	return 1;
227	+	}
228	+	if( !strncmp(driver_list[x], device_name, BIG_ENOUGH)){
229	+	found = 1;
230	+	break;
231	+	}
232	+	}
233	+
234	+	if(!found){
235	+	if((get_alias(device_name)) != 0){
236	+	return 1;
237	+	}
238	+	strncpy(driver_list[x], device_name, BIG_ENOUGH);
239	+	list_entries++;
240	+	}
241	+	}
242	+	}
243	+
244	+	return 0;
245	+	}
246	+
247	+	#endif
248	+
249	+
250	+
251		char *f_read_line(FILE *f, const char *string){
252		/* Max line length. 8k should be more than enough */
253		static char line[8192];
#	Line 50 | Line 270 | char *get_string_match(char *line, regmatch_t *match){
270
271		return match_string;
272		}
273	<	#ifdef HAVE_ATOLL
273	>
274	>
275	>
276	>	#ifndef HAVE_ATOLL
277	>	static long long atoll(const char *s) {
278	>	long long value = 0;
279	>	int isneg = 0;
280	>
281	>	while (*s == ' ' || *s == '\t') {
282	>	s++;
283	>	}
284	>	if (*s == '-') {
285	>	isneg = 1;
286	>	s++;
287	>	}
288	>	while (*s >= '0' && *s <= '9') {
289	>	value = (10 * value) + (*s - '0');
290	>	s++;
291	>	}
292	>	return (isneg ? -value : value);
293	>	}
294	>	#endif
295	>
296	>	#ifndef HAVE_STRLCPY
297	>	/*      $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $     */
298	>
299	>	/*
300	>	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
301	>	*
302	>	* Permission to use, copy, modify, and distribute this software for any
303	>	* purpose with or without fee is hereby granted, provided that the above
304	>	* copyright notice and this permission notice appear in all copies.
305	>	*
306	>	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
307	>	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
308	>	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
309	>	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
310	>	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
311	>	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
312	>	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
313	>	*/
314	>
315	>	/*
316	>	* Copy src to string dst of size siz.  At most siz-1 characters
317	>	* will be copied.  Always NUL terminates (unless siz == 0).
318	>	* Returns strlen(src); if retval >= siz, truncation occurred.
319	>	*/
320	>	size_t strlcpy(char *dst, const char *src, size_t siz){
321	>	register char *d = dst;
322	>	register const char *s = src;
323	>	register size_t n = siz;
324	>
325	>	/* Copy as many bytes as will fit */
326	>	if (n != 0 && --n != 0) {
327	>	do {
328	>	if ((*d++ = *s++) == 0)
329	>	break;
330	>	} while (--n != 0);
331	>	}
332	>
333	>	/* Not enough room in dst, add NUL and traverse rest of src */
334	>	if (n == 0) {
335	>	if (siz != 0)
336	>	*d = '\0';              /* NUL-terminate dst */
337	>	while (*s++)
338	>	;
339	>	}
340	>
341	>	return(s - src - 1);    /* count does not include NUL */
342	>	}
343	>	#endif
344	>
345	>	#ifndef HAVE_STRLCAT
346	>	/*      $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $    */
347	>
348	>	/*
349	>	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
350	>	*
351	>	* Permission to use, copy, modify, and distribute this software for any
352	>	* purpose with or without fee is hereby granted, provided that the above
353	>	* copyright notice and this permission notice appear in all copies.
354	>	*
355	>	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
356	>	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
357	>	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
358	>	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
359	>	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
360	>	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
361	>	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
362	>	*/
363	>
364	>	/*
365	>	* Appends src to string dst of size siz (unlike strncat, siz is the
366	>	* full size of dst, not space left).  At most siz-1 characters
367	>	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
368	>	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
369	>	* If retval >= siz, truncation occurred.
370	>	*/
371	>	size_t strlcat(char *dst, const char *src, size_t siz){
372	>	register char *d = dst;
373	>	register const char *s = src;
374	>	register size_t n = siz;
375	>	size_t dlen;
376	>
377	>	/* Find the end of dst and adjust bytes left but don't go past end */
378	>	while (n-- != 0 && *d != '\0')
379	>	d++;
380	>	dlen = d - dst;
381	>	n = siz - dlen;
382	>
383	>	if (n == 0)
384	>	return(dlen + strlen(s));
385	>	while (*s != '\0') {
386	>	if (n != 1) {
387	>	*d++ = *s;
388	>	n--;
389	>	}
390	>	s++;
391	>	}
392	>	*d = '\0';
393	>
394	>	return(dlen + (s - src));       /* count does not include NUL */
395	>	}
396	>
397	>	#endif
398	>
399		long long get_ll_match(char *line, regmatch_t *match){
400		char *ptr;
401		long long num;
#	Line 60 | Line 405 | long long get_ll_match(char *line, regmatch_t *match){
405
406		return num;
407		}
408	+
409	+	#ifdef ALLBSD
410	+	kvm_t *get_kvm() {
411	+	static kvm_t *kvmd = NULL;
412	+
413	+	if (kvmd != NULL) {
414	+	return kvmd;
415	+	}
416	+
417	+	kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
418	+	return kvmd;
419	+	}
420		#endif
421	+
422	+	#ifdef NETBSD
423	+	struct uvmexp *get_uvmexp() {
424	+	static u_long addr = 0;
425	+	static struct uvmexp uvm;
426	+	kvm_t *kvmd = get_kvm();
427	+
428	+	if (kvmd == NULL) {
429	+	return NULL;
430	+	}
431	+
432	+	if (addr == 0) {
433	+	struct nlist symbols[] = {
434	+	{ "_uvmexp" },
435	+	{ NULL }
436	+	};
437	+
438	+	if (kvm_nlist(kvmd, symbols) != 0) {
439	+	return NULL;
440	+	}
441	+	addr = symbols[0].n_value;
442	+	}
443	+
444	+	if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
445	+	return NULL;
446	+	}
447	+	return &uvm;
448	+	}
449	+	#endif
450	+
451	+	int statgrab_init(){
452	+	#ifdef ALLBSD
453	+	{
454	+	kvm_t *kvmd = get_kvm();
455	+	if (kvmd == NULL) return 1;
456	+	}
457	+	#endif
458	+	#ifdef NETBSD
459	+	{
460	+	struct uvmexp *uvm = get_uvmexp();
461	+	if (uvm == NULL) return 1;
462	+	}
463	+	#endif
464	+	#ifdef SOLARIS
465	+	/* On solaris 7, this will fail if you are not root. But, everything
466	+	* will still work, just no disk mappings. So we will ignore the exit
467	+	* status of this, and carry on merrily.
468	+	*/
469	+	build_mapping();
470	+	#endif
471	+	return 0;
472	+	}
473	+
474	+	int statgrab_drop_privileges() {
475	+	if (setegid(getgid()) != 0) return -1;
476	+	if (seteuid(getuid()) != 0) return -1;
477	+	return 0;
478	+	}
479	+

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