File: leaks.c

package info (click to toggle)
ntop 3:3.3-11
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 12,772 kB
  • ctags: 7,534
  • sloc: ansic: 71,427; sh: 16,772; awk: 1,504; perl: 792; makefile: 782; php: 123; python: 23; sql: 13; sed: 11
file content (855 lines) | stat: -rw-r--r-- 23,794 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
/*
 * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 *                          http://www.ntop.org
 *
 * Copyright (C) 1998-2007 Luca Deri <deri@ntop.org>
 *
 * -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/* Prevent expansion of leaks.h */
#define _LEAKS_H_

#include "ntop.h"

/* #define USE_GC */

/* ****************************************** *
 * Complexity: We have routines here which    *
 *  (in coordination with globals-core.h)     *
 *  override the default glibc routines.      *
 *                                            *
 *  We call them 'safer' because the do some  *
 *  reasonability and error checking.         *
 *                                            *
 * If we aren't building the safer set, we    *
 *  have other choices, depending upon        *
 *  MEMORY_DEBUG (nothing, i.e. the default   *
 *  and/or various dropins) and our own       *
 *  'watching' routines.                      *
 *                                            *
 * ****************************************** */

#ifdef MAKE_WITH_SAFER_ROUTINES

static void stopcap(void) {
  int i;

  traceEvent(CONST_TRACE_WARNING, "ntop packet capture STOPPED");
  traceEvent(CONST_TRACE_INFO, "NOTE: ntop web server remains up");
  traceEvent(CONST_TRACE_INFO, "NOTE: Shutdown gracefully and restart with more memory");
  setRunState(FLAG_NTOPSTATE_STOPCAP);

  for(i=0; i<myGlobals.numDevices; i++) signalCondvar(&myGlobals.device[i].queueCondvar);

  signalCondvar(&myGlobals.queueAddressCondvar);
}

#undef malloc /* just to be safe */

/* #define COUNT_MALLOCS 1 */

void* ntop_safemalloc(unsigned int sz, char* file, int line) {
  void *thePtr;
#ifdef COUNT_MALLOCS
  static u_int num_allocs = 0, tot_allocs = 0;
#endif

#ifdef DEBUG
  if((sz == 0) || (sz > 32768)) {
    traceEvent(CONST_TRACE_INFO, "DEBUG: malloc(%u) @ %s:%d", sz, file, line);
    if(sz == 0) sz = 8; /* 8 bytes is the minimal size ntop can allocate
                         * for doing things that make sense
                         */
  }
#endif

#ifndef USE_GC
  thePtr = malloc(sz);
#else
  thePtr = GC_malloc_atomic(sz);
#endif

#if COUNT_MALLOCS
  tot_allocs += sz, num_allocs++; traceEvent(CONST_TRACE_ERROR, "[num_allocs=%u][size=%u][total=%u]", num_allocs, sz, tot_allocs);
#endif

  if(thePtr == NULL) {
    traceEvent(CONST_TRACE_ERROR, "malloc(%u) @ %s:%d returned NULL [no more memory?]",
	       sz, file, line);
    if ((myGlobals.ntopRunState <= FLAG_NTOPSTATE_RUN) &&
	(myGlobals.runningPref.disableStopcap != TRUE)) {
      stopcap();
    } /* else - just keep on trucking ... ouch */
  } else
    memset(thePtr, 0xee, sz); /* Fill it with garbage */

  return(thePtr);
}

/* ****************************************** */

/* Courtesy of Wies-Software <wies@wiessoft.de> */
#undef calloc /* just to be safe */
void* ntop_safecalloc(unsigned int c, unsigned int sz, char* file, int line) {  
  void *thePtr;
  
#ifdef DEBUG
  if((sz == 0) || (sz > 32768)) {
    traceEvent(CONST_TRACE_INFO, "DEBUG: called calloc(%u,%u) @ %s:%d",
	       c, sz, file, line);
  }
#endif
  
#ifndef USE_GC
  thePtr = calloc(c, sz);
#else
  thePtr = GC_malloc_atomic(c*sz);
#endif

  if(thePtr == NULL) {
    traceEvent(CONST_TRACE_ERROR, 
	       "calloc(%u,%u) @ %s:%d returned NULL [no more memory?]",
	       c, sz, file, line);
    if ( (myGlobals.ntopRunState <= FLAG_NTOPSTATE_RUN) &&
         (myGlobals.runningPref.disableStopcap != TRUE) ) {
      stopcap();
    } /* else - just keep on trucking ... ouch */
  }
  
  return(thePtr);
}

/* ****************************************** */

/* Courtesy of Wies-Software <wies@wiessoft.de> */
#undef realloc /* just to be safe */
void* ntop_saferealloc(void* ptr, unsigned int sz, char* file, int line) {
  void *thePtr;
  
#ifdef DEBUG
  if((sz == 0) || (sz > 32768)) {
    traceEvent(CONST_TRACE_INFO, "DEBUG: called realloc(%p,%u) @ %s:%d",
	       ptr, sz, file, line);
  }
#endif
  
#ifndef USE_GC
  thePtr = realloc(ptr, sz);
#else
  thePtr = GC_realloc(ptr, sz);
#endif

  if(thePtr == NULL) {
    traceEvent(CONST_TRACE_ERROR, 
	       "realloc(%u) @ %s:%d returned NULL [no more memory?]",
	       sz, file, line);
    if ( (myGlobals.ntopRunState <= FLAG_NTOPSTATE_RUN) &&
         (myGlobals.runningPref.disableStopcap != TRUE) ) {
      stopcap();
    } /* else - just keep on trucking ... ouch */
  }

  return(thePtr);
}

/* ****************************************** */

#undef free /* just to be safe */
void ntop_safefree(void **ptr, char* file, int line) {

#ifdef DEBUG
  printf("DEBUG: free(%x) @ %s:%d\n", *ptr, file, line);
#endif

  if((ptr == NULL) || (*ptr == NULL)) {
    traceEvent(CONST_TRACE_WARNING, "free of NULL pointer @ %s:%d", 
	       file, line);
  } else {
    free(*ptr);
    *ptr = NULL;
  }
}

/* ****************************************** */

#undef strdup /* just to be safe */
char* ntop_safestrdup(char *ptr, char* file, int line) {  
  if(ptr == NULL) {
    traceEvent(CONST_TRACE_WARNING, "strdup of NULL pointer @ %s:%d", file, line);
#ifdef WIN32
	return(_strdup(""));
#else
	return(strdup(""));
#endif
  } else {
    char* theOut;
    int len = (int)strlen(ptr);
    
#ifndef USE_GC
    theOut = (char*)malloc((len+1)*sizeof(char));
#else
    theOut = (char*)GC_malloc_atomic((len+1)*sizeof(char));
#endif
    if(len > 0) strncpy(theOut, ptr, len);
    theOut[len] = '\0';
    
    return(theOut);
  }
}

#elif defined(MEMORY_DEBUG) && (MEMORY_DEBUG == 1)

  /* mtrace()/muntrace() - use existing routines */

/* ****************************************** */
/* ****************************************** */

#elif defined(MEMORY_DEBUG) && (MEMORY_DEBUG == 2)

  /* ElectricFence - use existing routines */

/* ****************************************** */
/* ****************************************** */

#elif defined(MEMORY_DEBUG) && (MEMORY_DEBUG == 3)

  /* ntop custom monitor */

#undef malloc
#undef free
#undef strdup

/* gdbm routines */
#undef gdbm_firstkey
#undef gdbm_nextkey
#undef gdbm_fetch

typedef struct memoryBlock {
  void*               memoryLocation;       /* Malloc address              */
  size_t              blockSize;            /* Block size                  */
  char                programLocation[48];  /* Program address: file, line */
  struct memoryBlock* nextBlock;            /* Next memory block           */
  short alreadyTraced;
} MemoryBlock;

static MemoryBlock *theRoot = NULL;
static char tmpStr[255];
static int traceAllocs = 0;
static PthreadMutex leaksMutex;
static int inTraceEventTrapped = 0;

/* Forward declarations */
static void traceEventLeak(int eventTraceLevel, char* file, int line, char* format, ...);
unsigned int PrintMemoryBlocks(void);
size_t GimmePointerSize(void* thePtr);
int GimmePointerInfo(void* thePtr);
void myAddLeak(void* thePtr, int theLine, char* theFile);
void myRemoveLeak(void* thePtr, int theLine, char* theFile);

/* *************************************** */

/* This is a minimalist version of traceEvent() suitable for use in leak detection
 *
 *    We can not use the normal traceEvent() call because that might be
 *    where the fault lies.
 */
static void traceEventLeak(int eventTraceLevel, /* Ignored */
                           char* file, int line,
                           char * format, ...) {

  va_list va_ap;
  char bufF[LEN_GENERAL_WORK_BUFFER],
       bufMsg[LEN_GENERAL_WORK_BUFFER];

#ifdef WIN32
  /* If ntop is a Win32 service, we're done - we don't (yet) write to the
   * windows event logs and there's no console...
   */
  if(isNtopAservice) return;
#endif

  /* Our Lame attempt at deadlock prevention */
  if(inTraceEventTrapped == 1) return;

  inTraceEventTrapped=1;

  memset(bufF, 0, sizeof(bufF));
  memset(bufMsg, 0, sizeof(bufMsg));

  if(file == NULL)
    safe_snprintf(file, line, bufF, sizeof(bufF),
                  "LEAK: %s",
                  format);
  else
    safe_snprintf(file, line, bufF, sizeof(bufF),
                  "LEAK: %s [@%s:%d]",
                  format,
                  file, line);

  va_start (va_ap, format);

  vsnprintf(bufMsg, sizeof(bufMsg), bufF, va_ap);

  /* Strip a trailing return from bufMsg */
  if(bufMsg[strlen(bufMsg)-1] == '\n')
    bufMsg[strlen(bufMsg)-1] = 0;

  if(myGlobals.runningPref.instance != NULL)
    openlog(myGlobals.runningPref.instance, LOG_PID, myGlobals.runningPref.useSyslog);
  else
    openlog(CONST_DAEMONNAME, LOG_PID, myGlobals.runningPref.useSyslog);

  syslog(LOG_ERR, "%s", bufMsg);
  closelog();

  va_end (va_ap);

  inTraceEventTrapped=0;

}

/* *************************************** */

static void storePtr(void* ptr, int ptrLen, int theLine, char* theFile, int lockMutex) {
  MemoryBlock *tmpBlock;

  if(lockMutex)
    accessMutex(&leaksMutex, "storePtr");

  tmpBlock = (MemoryBlock*)malloc(sizeof(MemoryBlock));

  if(tmpBlock == NULL) {
    if(lockMutex)
      releaseMutex(&leaksMutex);
    traceEventLeak(CONST_FATALERROR_TRACE_LEVEL, 
                   theFile, theLine,
                   "malloc(%d) [tot=%u] not enough memory", ptrLen, myGlobals.allocatedMemory);
    exit(300);
  }
  
  tmpBlock->blockSize        = ptrLen;
  tmpBlock->memoryLocation   = ptr;
  tmpBlock->alreadyTraced    = 0;
  myGlobals.allocatedMemory += tmpBlock->blockSize;
      
  if(traceAllocs)
    traceEventLeak(CONST_INFO_TRACE_LEVEL,
                   theFile, theLine,
                   "malloc(%d) [tot=%u]", ptrLen, myGlobals.allocatedMemory);

  safe_snprintf(__FILE__, __LINE__, tmpBlock->programLocation, sizeof(tmpBlock->programLocation), 
		"%s@%d", theFile, theLine);
  tmpBlock->nextBlock = theRoot;
  theRoot = tmpBlock;
  if(lockMutex)
    releaseMutex(&leaksMutex);
}

/* ********************************* */

static void* myMalloc(size_t theSize, int theLine, char* theFile, int lockMutex) {
  void *theMem;

  theMem = malloc(theSize);
  memset(theMem, 0xee, theSize); /* Fill it with garbage */
  storePtr(theMem, theSize, theLine, theFile, lockMutex);
  return(theMem);
}

/* *************************************** */

static void* myCalloc(size_t numObj, size_t theSize, int theLine, char* theFile) {
  int numElems = numObj*theSize;
  void* thePtr = myMalloc(numElems, theLine, theFile, 1);

  if(thePtr != NULL)
    memset(thePtr, '\0', numElems);

  return(thePtr);
}

/* *************************************** */

static void* myRealloc(void* thePtr, size_t theSize, int theLine, char* theFile) {
  MemoryBlock *theScan, *lastPtr, *theNewPtr;
  
  accessMutex(&leaksMutex, "myRealloc");

  theScan = theRoot;
 
  while((theScan != NULL) && (theScan->memoryLocation != thePtr)) {
    lastPtr = theScan;
    theScan = theScan->nextBlock;
  }

  if(theScan == NULL) {
    traceEventLeak(CONST_ERROR_TRACE_LEVEL,
                   theFile, theLine,
                   "ERROR: realloc() - Ptr %p NOT allocated",
	           thePtr);
    releaseMutex(&leaksMutex);
    return(NULL);
  } else {    
    theNewPtr = myMalloc(theSize, theLine, theFile, 0);
      
    if(theSize > theScan->blockSize)
      memcpy(theNewPtr, thePtr, theScan->blockSize);
    else
      memcpy(theNewPtr, thePtr, theSize);
	
    free(theScan->memoryLocation);
      
    if(theScan == theRoot)
      theRoot = theRoot->nextBlock;
    else
      lastPtr->nextBlock = theScan->nextBlock;

    free(theScan);     

    releaseMutex(&leaksMutex);

    return(theNewPtr);
  }
}

/* *************************************** */

static void myFree(void **thePtr, int theLine, char* theFile) {
  MemoryBlock *theScan, *lastPtr;
  
  accessMutex(&leaksMutex, "myFree");

  theScan = theRoot;

  if((thePtr == NULL) || (*thePtr == NULL)) {
    traceEventLeak(CONST_ERROR_TRACE_LEVEL, theFile, theLine, "ERROR: free(NULL)", "");
    return;
  }
 
  while((theScan != NULL) && (theScan->memoryLocation != *thePtr)) {
    lastPtr = theScan;
    theScan = theScan->nextBlock;
  }

  if(theScan == NULL) {
    traceEventLeak(CONST_ERROR_TRACE_LEVEL,
                   theFile, theLine,
                   "ERROR: free() - Ptr %p NOT allocated",
	           *thePtr);
    releaseMutex(&leaksMutex);
    return;
  } else {
    myGlobals.allocatedMemory -= theScan->blockSize;

    if(traceAllocs) 
      traceEventLeak(CONST_INFO_TRACE_LEVEL, theFile, theLine,
                     "free(%d)  [tot=%u]",
                     theScan->blockSize, myGlobals.allocatedMemory);

    free(theScan->memoryLocation);

    if(theScan == theRoot)
      theRoot = theRoot->nextBlock;
    else
      lastPtr->nextBlock = theScan->nextBlock;

    free(theScan);
    *thePtr = NULL;
  }

  releaseMutex(&leaksMutex);
}

/* *************************************** */

static char* myStrdup(char* theStr, int theLine, char* theFile) {
  char* theOut;
  int len = strlen(theStr);
  
  theOut = (char*)myMalloc((len+1), theLine, theFile, 1);
  strncpy(theOut, theStr, len);
  theOut[len] = '\0';

  return(theOut);
}

/* *************************************** */

void resetLeaks(void) {
  MemoryBlock *theScan;

  theScan = theRoot;
 
  while(theScan != NULL) {
    theScan->alreadyTraced = 1;
    theScan = theScan->nextBlock;
  }

  myGlobals.allocatedMemory = 0; /* Reset counter */
}

/* *************************************** */

unsigned int PrintMemoryBlocks(void) {
  MemoryBlock *theScan;
  int i = 0;
  unsigned int totMem = 0;

  theScan = theRoot;
 
  while(theScan != NULL) {
    MemoryBlock* tmp;

    if(!theScan->alreadyTraced) {
      traceEventLeak(CONST_INFO_TRACE_LEVEL, NULL, 0, 
                     "Block %5d (addr %p, size %4d): %s",
                     i++, 
		     theScan->memoryLocation,
                     theScan->blockSize,
                     theScan->programLocation);
      totMem += theScan->blockSize;
    }

    theScan->alreadyTraced = 1;
    tmp = theScan->memoryLocation;
    theScan = theScan->nextBlock;
  }

  traceEventLeak(CONST_INFO_TRACE_LEVEL, NULL, 0, "Total allocated memory: %u bytes", totMem);

  /* PrintMemoryBlocks(); */

  return(totMem);
}

/* *************************************** */

size_t GimmePointerSize(void* thePtr) {
  MemoryBlock *theScan;
  
  theScan = theRoot;
 
  while((theScan != NULL) && (theScan->memoryLocation != thePtr))
    theScan = theScan->nextBlock;

  if(theScan == NULL) {
    traceEventLeak(CONST_ERROR_TRACE_LEVEL, NULL, 0,
                   "ERROR: GimmePointerSize() - Ptr %p NOT allocated", thePtr);
    return(-1);
  } else
    return(theScan->blockSize);
}

/* *************************************** */

int GimmePointerInfo(void* thePtr) {
  MemoryBlock *theScan;
  
  theScan = theRoot;
 
  while((theScan != NULL) && (theScan->memoryLocation != thePtr))
    theScan = theScan->nextBlock;

  if(theScan == NULL) {
    traceEventLeak(CONST_ERROR_TRACE_LEVEL, NULL, 0, 
                   "ERROR: GimmePointerInfo() - Ptr %p NOT allocated", thePtr);
    return -1;
  } else {      
    traceEventLeak(CONST_TRACE_WARNING,
                   "Block (addr %p, size %d): %s",
                   theScan->memoryLocation, 
                   theScan->blockSize,
                   theScan->programLocation);
    return 0;
  }
}

/* *************************************** */

void myAddLeak(void* thePtr, int theLine, char* theFile) {
  MemoryBlock *tmpBlock;

  if(thePtr == NULL) 
    return;

  tmpBlock = (MemoryBlock*)malloc(sizeof(MemoryBlock));

  if(tmpBlock == NULL) {
    traceEventLeak(CONST_ERROR_TRACE_LEVEL, theFile, theLine,
                   "ERROR: myAddLeak() malloc() - not enough memory", ""); 
    return;
  }
  
  tmpBlock->blockSize = 0;
  tmpBlock->memoryLocation = thePtr;
  safe_snprintf(__FILE__, __LINE__, tmpBlock->programLocation, sizeof(tmpBlock->programLocation),
                "%s@%d", theFile, theLine);
  tmpBlock->nextBlock = theRoot;
  theRoot = tmpBlock;
}

/* *************************************** */

void myRemoveLeak(void* thePtr, int theLine, char* theFile) {
  MemoryBlock *theScan, *lastPtr;
  
  theScan = theRoot;
 
  while((theScan != NULL) && (theScan->memoryLocation != thePtr)) {
    lastPtr = theScan;
    theScan = theScan->nextBlock;
  }

  if(theScan == NULL) {
    traceEventLeak(CONST_ERROR_TRACE_LEVEL, theFile, theLine,
                   "ERROR: free() block error (Ptr %p NOT allocated)", thePtr); 
    return;
  } else {   
    if(theScan == theRoot)
      theRoot = theRoot->nextBlock;
    else
      lastPtr->nextBlock = theScan->nextBlock;

    free(theScan);
  }
}

/* *************************************** */

void initLeaks(void) {
  myGlobals.runningPref.useSyslog       = FLAG_SYSLOG_NONE;
  myGlobals.runningPref.traceLevel      = 999;
  myGlobals.allocatedMemory = 0;  

  createMutex(&leaksMutex);
}

/* *************************************** */

void termLeaks(void) {
  PrintMemoryBlocks();
  deleteMutex(&leaksMutex);
}

/* ************************************ */

void* ntop_malloc(unsigned int sz, char* file, int line) {

#ifdef DEBUG
  char formatBuffer[32];
  traceEvent(CONST_TRACE_INFO, "DEBUG: malloc(%u) [%s] @ %s:%d", 
	     sz, formatBytes(myGlobals.allocatedMemory, 0, 
			     formatBuffer, sizeof(formatBuffer)), file, line);
#endif

  return(myMalloc(sz, line, file, 1));
}

/* ************************************ */

void* ntop_calloc(unsigned int c, unsigned int sz, char* file, int line) {
#ifdef DEBUG
  char formatBuffer[32];
  traceEvent(CONST_TRACE_INFO, "DEBUG: calloc(%u) [%s] @ %s:%d", 
	     sz, formatBytes(myGlobals.allocatedMemory, 0, 
			     formatBuffer, sizeof(formatBuffer)), file, line);
#endif
  return(myCalloc(c, sz, line, file));
}

/* ************************************ */

void* ntop_realloc(void* ptr, unsigned int sz, char* file, int line) {  
#ifdef DEBUG
  char formatBuffer[32];
  traceEvent(CONST_TRACE_INFO, "DEBUG: realloc(%u) [%s] @ %s:%d", 
	     sz, formatBytes(myGlobals.allocatedMemory, 0, 
			     formatBuffer, sizeof(formatBuffer)), file, line);
#endif  
  return(myRealloc(ptr, sz, line, file));
}

/* ************************************ */

char* ntop_strdup(char *str, char* file, int line) {
#ifdef DEBUG
  char formatBuffer[32];
  traceEvent(CONST_TRACE_INFO, "DEBUG: strdup(%s) [%s] @ %s:%d", str, 
	     formatBytes(myGlobals.allocatedMemory, 0,
			 formatBuffer, sizeof(formatBuffer)), file, line);
#endif
  return(myStrdup(str, line, file));
}

/* ************************************ */

void ntop_free(void **ptr, char* file, int line) {
#ifdef DEBUG
  char formatBuffer[32];
  traceEvent(CONST_TRACE_INFO, "DEBUG: free(%x) [%s] @ %s:%d", ptr, 
	     formatBytes(myGlobals.allocatedMemory, 0,
			 formatBuffer, sizeof(formatBuffer)), file, line);
#endif
  myFree(ptr, line, file);
}

#elif defined(MEMORY_DEBUG) 
#else
#endif /* MAKE_WITH_SAFER_ROUTINES / MEMORY_DEBUG */

/* ************************************************************************************** */
/* ************************************************************************************** */
/* ************************************************************************************** */

/* These replacment routines serialize gdbm access across threads
 *
 * They are here, vs. util.c so we can add implicit allocation tracking
 * when MEMORY_DEBUG is 3...
 */

#undef gdbm_firstkey
#undef gdbm_nextkey
#undef gdbm_fetch
#undef gdbm_delete
#undef gdbm_store
#undef gdbm_close

datum ntop_gdbm_firstkey(GDBM_FILE g, char* theFile, int theLine) {
  datum theData;

  memset(&theData, 0, sizeof(theData));

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    accessMutex(&myGlobals.gdbmMutex, "ntop_gdbm_firstkey");

  theData = gdbm_firstkey(g);

#if defined(MEMORY_DEBUG) && (MEMORY_DEBUG == 3)
  if(theData.dptr != NULL) {
    storePtr(theData.dptr, theData.dsize, theLine, theFile, 1);
    if(traceAllocs) traceEvent(CONST_TRACE_INFO, "gdbm_firstkey(%s:%d)", theFile, theLine);
  }
#endif /* MEMORY_DEBUG 3 */

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    releaseMutex(&myGlobals.gdbmMutex);

  return(theData);
}

/* ******************************************* */

datum ntop_gdbm_nextkey(GDBM_FILE g, datum d, char* theFile, int theLine) {
  datum theData;

  memset(&theData, 0, sizeof(theData));

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    accessMutex(&myGlobals.gdbmMutex, "ntop_gdbm_nextkey");

  theData = gdbm_nextkey(g, d);

#if defined(MEMORY_DEBUG) && (MEMORY_DEBUG == 3)
  if(theData.dptr != NULL) {
    storePtr(theData.dptr, theData.dsize, theLine, theFile, 1);
    if(traceAllocs) traceEvent(CONST_TRACE_INFO, "gdbm_nextkey(%s)", theData.dptr);
  }
#endif /* MEMORY_DEBUG 3 */

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    releaseMutex(&myGlobals.gdbmMutex);

  return(theData);
}

/* ******************************************* */

datum ntop_gdbm_fetch(GDBM_FILE g, datum d, char* theFile, int theLine) {
  datum theData;

  memset(&theData, 0, sizeof(theData));

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    accessMutex(&myGlobals.gdbmMutex, "ntop_gdbm_fetch");

  theData = gdbm_fetch(g, d);

#if defined(MEMORY_DEBUG) && (MEMORY_DEBUG == 3)
  if(theData.dptr != NULL) {
    storePtr(theData.dptr, theData.dsize, theLine, theFile, 1);
    if(traceAllocs) traceEvent(CONST_TRACE_INFO, "gdbm_fetch(%s) %x", theData.dptr, theData.dptr);
  }
#endif /* MEMORY_DEBUG 3 */

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    releaseMutex(&myGlobals.gdbmMutex);

  return(theData);
}

/* ******************************************* */

int ntop_gdbm_delete(GDBM_FILE g, datum d, char* theFile, int theLine) {
  int rc;

  if((d.dptr == NULL) || (d.dsize == 0)) {
    traceEvent(CONST_TRACE_WARNING, "Wrong data to delete passed to gdbm_delete()");
    return(-1);
  }

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    accessMutex(&myGlobals.gdbmMutex, "ntop_gdbm_delete");

  rc = gdbm_delete(g, d);

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    releaseMutex(&myGlobals.gdbmMutex);

  return(rc);
}

/* ******************************************* */

int ntop_gdbm_store(GDBM_FILE g, datum d, datum v, int r, char* theFile, int theLine) {
  int rc;

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    accessMutex(&myGlobals.gdbmMutex, "ntop_gdbm_store");

  rc = gdbm_store(g, d, v, r);

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    releaseMutex(&myGlobals.gdbmMutex);

  return(rc);
}

/* ******************************************* */

void ntop_gdbm_close(GDBM_FILE g, char* theFile, int theLine) {
  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    accessMutex(&myGlobals.gdbmMutex, "ntop_gdbm_close");

  gdbm_close(g);

  if(myGlobals.gdbmMutex.isInitialized == 1) /* Mutex not yet initialized ? */
    releaseMutex(&myGlobals.gdbmMutex);
}

/* ******************************************* */
/* ******************************************* */