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root/i-scream/projects/libstatgrab/src/libstatgrab/tools.c
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Comparing projects/libstatgrab/src/libstatgrab/tools.c (file contents):
Revision 1.19 by pajs, Fri Jan 9 16:19:58 2004 UTC vs.
Revision 1.34 by tdb, Sun Apr 4 22:09:32 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 30 | Line 33
33   #include <regex.h>
34   #ifdef ALLBSD
35   #include <fcntl.h>
36 + #endif
37 + #if (defined(FREEBSD) && !defined(FREEBSD5)) || 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 51 | 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 61 | 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 187 | Line 201 | int get_alias(char *alias){
201          return 0;
202   }
203  
204 +
205 + #define BIG_ENOUGH 512
206   int build_mapping(){
207 <        char device_name[512];
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 | int build_mapping(){
230                          }
231                          if(x == sizeof device_name) x--;
232                          device_name[x] = '\0';
233 <                        if((get_alias(device_name)) != 0){
234 <                                return 1;
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  
# Line 269 | Line 308 | static long long atoll(const char *s) {
308   #endif
309  
310   #ifndef HAVE_STRLCPY
311 < *      $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $     */
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>
# Line 381 | 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(FREEBSD5)) || defined(DFBSD)
424   kvm_t *get_kvm() {
425          static kvm_t *kvmd = NULL;
426  
# Line 392 | Line 431 | kvm_t *get_kvm() {
431          kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
432          return kvmd;
433   }
434 +
435 + /* Can't think of a better name for this function */
436 + kvm_t *get_kvm2() {
437 +        static kvm_t *kvmd2 = NULL;
438 +
439 +        if (kvmd2 != NULL) {
440 +                return kvmd2;
441 +        }
442 +
443 +        kvmd2 = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL);
444 +        return kvmd2;
445 + }
446   #endif
447  
448 < #ifdef NETBSD
448 > #if defined(NETBSD) || defined(OPENBSD)
449   struct uvmexp *get_uvmexp() {
450 <        static u_long addr = 0;
451 <        static struct uvmexp uvm;
452 <        kvm_t *kvmd = get_kvm();
450 >        int mib[2];
451 >        size_t size;
452 >        static struct uvmexp *uvm = NULL;
453  
454 <        if (kvmd == NULL) {
454 >        mib[0] = CTL_VM;
455 >        mib[1] = VM_UVMEXP;
456 >
457 >        if (sysctl(mib, 2, NULL, &size, NULL, 0) < 0) {
458                  return NULL;
459          }
460  
461 <        if (addr == 0) {
462 <                struct nlist symbols[] = {
463 <                        { "_uvmexp" },
410 <                        { NULL }
411 <                };
412 <
413 <                if (kvm_nlist(kvmd, symbols) != 0) {
414 <                        return NULL;
415 <                }
416 <                addr = symbols[0].n_value;
461 >        uvm = realloc(uvm, size);
462 >        if (uvm == NULL) {
463 >                return NULL;
464          }
465  
466 <        if (kvm_read(kvmd, addr, &uvm, sizeof uvm) != sizeof uvm) {
466 >        if (sysctl(mib, 2, uvm, &size, NULL, 0) < 0) {
467                  return NULL;
468          }
469 <        return &uvm;
469 >
470 >        return uvm;
471   }
472   #endif
473  
474   int statgrab_init(){
475 < #ifdef ALLBSD
475 > #if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
476          {
477                  kvm_t *kvmd = get_kvm();
478                  if (kvmd == NULL) return 1;
479          }
480 +        {
481 +                kvm_t *kvmd2 = get_kvm2();
482 +                if (kvmd2 == NULL) return 1;
483 +        }
484   #endif
485 < #ifdef NETBSD
485 > #if defined(NETBSD) || defined(OPENBSD)
486          {
487 +                /* This should always succeed, but it seems that on some
488 +                 * versions of NetBSD the first call to get_uvmexp will return
489 +                 * a non-filled-in structure; this is a workaround for that.
490 +                 */
491                  struct uvmexp *uvm = get_uvmexp();
492                  if (uvm == NULL) return 1;
493          }
494   #endif
495   #ifdef SOLARIS
496 <        if((build_mapping()) != 0) return 1;
496 >        /* On solaris 7, this will fail if you are not root. But, everything
497 >         * will still work, just no disk mappings. So we will ignore the exit
498 >         * status of this, and carry on merrily.
499 >         */
500 > #ifdef HAVE_LIBDEVINFO_H
501 >        build_mapping();
502 > #endif
503   #endif
504          return 0;
505   }

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