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

Comparing projects/libstatgrab/src/libstatgrab/tools.c (file contents):
Revision 1.16 by tdb, Thu Nov 20 12:13:12 2003 UTC vs.
Revision 1.31 by tdb, Mon Feb 16 14:55:32 2004 UTC

#	Line 1 | Line 1
1	<	/*
1	>	/*
2		* i-scream central monitoring system
3		* http://www.i-scream.org
4	<	* Copyright (C) 2000-2003 i-scream
4	>	* Copyright (C) 2000-2004 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.
6	>	* This library is free software; you can redistribute it and/or
7	>	* modify it under the terms of the GNU Lesser General Public
8	>	* License as published by the Free Software Foundation; either
9	>	* version 2.1 of the License, or (at your option) any later version.
10		*
11	<	* This program is distributed in the hope that it will be useful,
11	>	* This library 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.
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14	>	* Lesser 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.
16	>	* You should have received a copy of the GNU Lesser General Public
17	>	* License along with this library; if not, write to the Free Software
18	>	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19	>	* 02111-1307 USA
20	>	*
21	>	* $Id$
22		*/
23
24		#ifdef HAVE_CONFIG_H
#	Line 25 | Line 28
28		#include <stdio.h>
29		#include <string.h>
30		#include <stdlib.h>
31	+	#include <unistd.h>
32		#include <sys/types.h>
33		#include <regex.h>
34		#ifdef ALLBSD
35		#include <fcntl.h>
36	+	#endif
37	+	#if defined(FREEBSD) || defined(DFBSD)
38		#include <kvm.h>
39		#endif
40	<	#ifdef NETBSD
40	>	#if defined(NETBSD) || defined(OPENBSD)
41		#include <uvm/uvm_extern.h>
42	+	#include <sys/param.h>
43	+	#include <sys/sysctl.h>
44		#endif
45
46		#include "tools.h"
47
48		#ifdef SOLARIS
49	+	#ifdef HAVE_LIBDEVINFO_H
50		#include <libdevinfo.h>
51	+	#endif
52		#include <kstat.h>
53		#include <unistd.h>
54		#include <ctype.h>
#	Line 50 | Line 60
60		#include <dirent.h>
61		#endif
62
63	<	#ifdef SOLARIS
63	>	#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
64		struct map{
65		char *bsd;
66		char *svr;
#	Line 60 | Line 70 | struct map{
70		typedef struct map mapping_t;
71
72		static mapping_t *mapping = NULL;
73	+	#endif
74
75	+	#ifdef SOLARIS
76		char *get_svr_from_bsd(char *bsd){
77	+	#ifdef HAVE_LIBDEVINFO_H
78		mapping_t *map_ptr;
79		for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next)
80		if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr;
81	<
81	>	#endif
82		return bsd;
83		}
84	+	#endif
85
86	+	#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H)
87		void add_mapping(char *bsd, char *svr){
88		mapping_t *map_ptr;
89		mapping_t *map_end_ptr;
#	Line 158 | Line 173 | int get_alias(char *alias){
173		char *value;
174		int instance;
175		if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) {
176	<	fprintf(stderr, "di_init() failed\n");
162	<	exit(1);
176	>	return 1;
177		}
178		node = di_drv_first_node(alias, root_node);
179		while (node != DI_NODE_NIL) {
#	Line 169 | Line 183 | int get_alias(char *alias){
183		minor_name = di_minor_name(minor);
184		strcpy(tmpnode, alias);
185		sprintf(tmpnode, "%s%d", tmpnode, instance);
186	<	strcpy(file, "/devices");
187	<	strcat(file, phys_path);
188	<	strcat(file, ":");
189	<	strcat(file, minor_name);
186	>	strlcpy(file, "/devices", sizeof file);
187	>	strlcat(file, phys_path, sizeof file);
188	>	strlcat(file, ":", sizeof file);
189	>	strlcat(file, minor_name, sizeof file);
190		value = read_dir(file);
191		if (value != NULL){
192		add_mapping(tmpnode, value);
#	Line 184 | Line 198 | int get_alias(char *alias){
198		}
199		}
200		di_fini(root_node);
201	<	return (-1);
201	>	return 0;
202		}
203
204	<	void build_mapping(){
205	<	char device_name[512];
204	>
205	>	#define BIG_ENOUGH 512
206	>	int build_mapping(){
207	>	char device_name[BIG_ENOUGH];
208		int x;
209		kstat_ctl_t *kc;
210		kstat_t *ksp;
211		kstat_io_t kios;
212
213	+	char driver_list[BIG_ENOUGH][BIG_ENOUGH];
214	+	int list_entries = 0;
215	+	int found;
216	+
217		if ((kc = kstat_open()) == NULL) {
218		return;
219		}
#	Line 210 | Line 230 | void build_mapping(){
230		}
231		if(x == sizeof device_name) x--;
232		device_name[x] = '\0';
233	<	get_alias(device_name);
233	>
234	>	/* Check if we've not already looked it up */
235	>	found = 0;
236	>	for(x=0;x<list_entries;x++){
237	>	if (x>=BIG_ENOUGH){
238	>	/* We've got bigger than we thought was massive */
239	>	/* If we hit this.. Make big enough bigger */
240	>	return 1;
241	>	}
242	>	if( !strncmp(driver_list[x], device_name, BIG_ENOUGH)){
243	>	found = 1;
244	>	break;
245	>	}
246	>	}
247	>
248	>	if(!found){
249	>	if((get_alias(device_name)) != 0){
250	>	return 1;
251	>	}
252	>	strncpy(driver_list[x], device_name, BIG_ENOUGH);
253	>	list_entries++;
254	>	}
255		}
256		}
257
258	<	return;
258	>	return 0;
259		}
260
261		#endif
#	Line 266 | Line 307 | static long long atoll(const char *s) {
307		}
308		#endif
309
310	+	#ifndef HAVE_STRLCPY
311	+	/*      $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $     */
312	+
313	+	/*
314	+	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
315	+	*
316	+	* Permission to use, copy, modify, and distribute this software for any
317	+	* purpose with or without fee is hereby granted, provided that the above
318	+	* copyright notice and this permission notice appear in all copies.
319	+	*
320	+	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
321	+	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
322	+	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
323	+	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
324	+	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
325	+	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
326	+	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
327	+	*/
328	+
329	+	/*
330	+	* Copy src to string dst of size siz.  At most siz-1 characters
331	+	* will be copied.  Always NUL terminates (unless siz == 0).
332	+	* Returns strlen(src); if retval >= siz, truncation occurred.
333	+	*/
334	+	size_t strlcpy(char *dst, const char *src, size_t siz){
335	+	register char *d = dst;
336	+	register const char *s = src;
337	+	register size_t n = siz;
338	+
339	+	/* Copy as many bytes as will fit */
340	+	if (n != 0 && --n != 0) {
341	+	do {
342	+	if ((*d++ = *s++) == 0)
343	+	break;
344	+	} while (--n != 0);
345	+	}
346	+
347	+	/* Not enough room in dst, add NUL and traverse rest of src */
348	+	if (n == 0) {
349	+	if (siz != 0)
350	+	*d = '\0';              /* NUL-terminate dst */
351	+	while (*s++)
352	+	;
353	+	}
354	+
355	+	return(s - src - 1);    /* count does not include NUL */
356	+	}
357	+	#endif
358	+
359	+	#ifndef HAVE_STRLCAT
360	+	/*      $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $    */
361	+
362	+	/*
363	+	* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
364	+	*
365	+	* Permission to use, copy, modify, and distribute this software for any
366	+	* purpose with or without fee is hereby granted, provided that the above
367	+	* copyright notice and this permission notice appear in all copies.
368	+	*
369	+	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
370	+	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
371	+	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
372	+	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
373	+	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
374	+	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
375	+	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
376	+	*/
377	+
378	+	/*
379	+	* Appends src to string dst of size siz (unlike strncat, siz is the
380	+	* full size of dst, not space left).  At most siz-1 characters
381	+	* will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
382	+	* Returns strlen(src) + MIN(siz, strlen(initial dst)).
383	+	* If retval >= siz, truncation occurred.
384	+	*/
385	+	size_t strlcat(char *dst, const char *src, size_t siz){
386	+	register char *d = dst;
387	+	register const char *s = src;
388	+	register size_t n = siz;
389	+	size_t dlen;
390	+
391	+	/* Find the end of dst and adjust bytes left but don't go past end */
392	+	while (n-- != 0 && *d != '\0')
393	+	d++;
394	+	dlen = d - dst;
395	+	n = siz - dlen;
396	+
397	+	if (n == 0)
398	+	return(dlen + strlen(s));
399	+	while (*s != '\0') {
400	+	if (n != 1) {
401	+	*d++ = *s;
402	+	n--;
403	+	}
404	+	s++;
405	+	}
406	+	*d = '\0';
407	+
408	+	return(dlen + (s - src));       /* count does not include NUL */
409	+	}
410	+
411	+	#endif
412	+
413		long long get_ll_match(char *line, regmatch_t *match){
414		char *ptr;
415		long long num;
#	Line 276 | Line 420 | long long get_ll_match(char *line, regmatch_t *match){
420		return num;
421		}
422
423	<	#ifdef ALLBSD
423	>	#if defined(FREEBSD) || defined(DFBSD)
424		kvm_t *get_kvm() {
425		static kvm_t *kvmd = NULL;
426
#	Line 289 | Line 433 | kvm_t *get_kvm() {
433		}
434		#endif
435
436	<	#ifdef NETBSD
436	>	#if defined(NETBSD) || defined(OPENBSD)
437		struct uvmexp *get_uvmexp() {
438	<	static u_long addr = 0;
439	<	static struct uvmexp uvm;
440	<	kvm_t *kvmd = get_kvm();
438	>	int mib[2];
439	>	size_t size;
440	>	static struct uvmexp *uvm = NULL;
441
442	<	if (kvmd == NULL) {
442	>	mib[0] = CTL_VM;
443	>	mib[1] = VM_UVMEXP;
444	>
445	>	if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) {
446		return NULL;
447		}
448
449	<	if (addr == 0) {
450	<	struct nlist symbols[] = {
451	<	{ "_uvmexp" },
305	<	{ NULL }
306	<	};
307	<
308	<	if (kvm_nlist(kvmd, symbols) != 0) {
309	<	return NULL;
310	<	}
311	<	addr = symbols[0].n_value;
449	>	uvm = realloc(uvm, size);
450	>	if (uvm == NULL) {
451	>	return NULL;
452		}
453
454	<	if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
454	>	if (sysctl(mib, 2, uvm, &size, NULL, 0) < 0) {
455		return NULL;
456		}
457	<	return &uvm;
457	>
458	>	return uvm;
459		}
460		#endif
461
462		int statgrab_init(){
463	<	#ifdef ALLBSD
463	>	#if defined(FREEBSD) || defined(DFBSD)
464		{
465		kvm_t *kvmd = get_kvm();
466		if (kvmd == NULL) return 1;
467		}
468		#endif
328	–	#ifdef NETBSD
329	–	{
330	–	struct uvmexp *uvm = get_uvmexp();
331	–	if (uvm == NULL) return 1;
332	–	}
333	–	#endif
469		#ifdef SOLARIS
470	+	/* On solaris 7, this will fail if you are not root. But, everything
471	+	* will still work, just no disk mappings. So we will ignore the exit
472	+	* status of this, and carry on merrily.
473	+	*/
474	+	#ifdef HAVE_LIBDEVINFO_H
475		build_mapping();
476		#endif
477	+	#endif
478		return 0;
479		}
480	+
481	+	int statgrab_drop_privileges() {
482	+	if (setegid(getgid()) != 0) return -1;
483	+	if (seteuid(getuid()) != 0) return -1;
484	+	return 0;
485	+	}
486	+

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