/*

  *  Copyright (C) 2015-2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved.

  *  Copyright (C) 2008 Sourcefire, Inc.
  *

  *  Authors: aCaB <acab@clamav.net>

  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.
  *
  *  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., 51 Franklin Street, Fifth Floor, Boston,
  *  MA 02110-1301, USA.
  */
 
 /* a naive pool allocator */
 
 #if HAVE_CONFIG_H
 #include "clamav-config.h"
 #endif
 
 #ifdef USE_MPOOL

 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
 #if HAVE_STRING_H
 #include <string.h>
 #endif

 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H)
 #include <sys/mman.h>
 #endif

 #include <stddef.h>
 

 #include "clamav.h"

 #include "others.h"

 #include "str.h"

 #include "readdb.h"

 /*#define CL_DEBUG*/

 #ifdef CL_DEBUG
 #include <assert.h>

 #define MPOOLMAGIC 0xadde

 #define ALLOCPOISON 0x5a
 #define FREEPOISON 0xde
 #endif
 

 /*#define DEBUGMPOOL
 #define EXIT_ON_FLUSH*/

 #ifdef DEBUGMPOOL

 #define spam(...) cli_warnmsg( __VA_ARGS__)

 #else

 static inline void spam(const char *fmt, ...) { UNUSEDPARAM(fmt); }

 #endif
 
 #include "mpool.h"
 

 #undef CL_DEBUG /* bb#2222 */
 

 #ifdef C_HPUX
 #define MIN_FRAGSIZE 1048576	/* Goes with LDFLAGS=-Wl,+pd,1M */
 #else

 #define MIN_FRAGSIZE 262144

 #endif

 #if SIZEOF_VOID_P==8
 static const unsigned int fragsz[] = {

     8,
     11,
     13,
     16,
     17,
     19,
     20,
     21,
     22,
     23,
     24,
     25,
     26,
     27,
     28,
     29,
     30,
     31,
     32,
     33,
     37,
     40,
     41,
     48,
     56,
     72,
     74,
     75,
     76,
     78,
     79,
     80,
     81,
     101,
     104,
     109,
     113,
     116,
     120,
     128,
     131,
     143,
     151,
     152,
     153,
     196,
     256,
     360,
     403,
     404,
     432,
     486,
     514,
     548,
     578,
     604,
     633,
     697,
     743,
     784,
     839,
    1176,
    1536,
    1666,
    2056,
    2168,
    2392,
    2985,
    3221,
    3433,
    3753,
    3832,
    4104,
    4280,
    4696,
    4952,
    5256,
    5826,
    6264,
    7176,
    8440,
    9096,
   16392,
   32780,
   50961,
   63504,
   65558,
  101912,
  131088,
  262144,
  507976,
  524296,
 1048584,

 2097152,
 4194304,
 8388608,

 16777216,
 33554432,
 67108864,
 134217728,

  /* MAX_ALLOCATION is 184549376 but that's really not need here */

  /* ^^ This MAX_ALLOCATION warning for Mac OS should now be fixed */

 };
 
 #else
 

 static const unsigned int fragsz[] = {

     4,
     5,
     8,
     9,
     11,
     12,
     13,
     14,
     15,
     16,
     17,
     19,
     20,
     21,
     22,
     23,
     24,
     25,
     26,
     27,
     28,
     29,
     30,
     31,
     32,
     33,
     35,
     36,
     37,
     39,
     40,
     41,
     44,
     48,
     49,
     52,
     53,
     56,
     58,
     59,
     60,
     61,
     62,
     63,
     64,
     65,
     68,
     69,
     72,
     73,
     77,
     80,
     81,
     83,
     85,
     88,
     89,
     93,
     96,
     99,
     101,
     103,
     104,
     105,
     108,
     112,
     113,
     115,
     116,
     117,
     119,
     120,
     121,
     124,
     128,
     129,
     131,
     133,
     136,
     137,
     141,
     143,
     145,
     148,
     151,
     152,
     153,
     160,
     168,
     173,
     176,
     184,
     194,
     200,
     208,
     216,
     224,
     229,
     232,
     241,
     244,
     248,
     256,
     257,
     264,
     274,
     280,
     293,
     296,
     304,
     307,
     312,
     326,
     344,
     354,
     372,
     396,
     403,
     418,
     456,
     485,
     514,
     546,
     581,
     608,
     646,
     693,
     740,
     776,
     805,
     828,
     902,
     964,
     1028,
     1032,
     1136,
     1238,
     1314,
     1420,
     1501,
     1668,
     1720,
     1832,
     1940,
     2048,
     2119,
     2264,
     2584,
     2724,
     2994,
     3336,
     3428,
     3828,
     4104,
     4471,
     4836,
     5044,
     5176,
     5912,
     6227,
     6792,
     7732,
     8192,
     11272,
     12500,
     16384,
     32768,
     63500,
     65536,
     131080,
     253988,
     262148,
     524292,
     1048576,
     2097152,
     4194304,
     8388608,

    16777216,
    33554432,
    67108864,
   134217728,

 };
 #endif

 #define FRAGSBITS (sizeof(fragsz)/sizeof(fragsz[0]))
 
 struct MPMAP {
   struct MPMAP *next;

   size_t size;
   size_t usize;

 };
 
 struct MP {

   size_t psize;

   struct FRAG *avail[FRAGSBITS];

   union {
       struct MPMAP mpm;
       uint64_t dummy_align;
   } u;

 };

 /* alignment of fake handled in the code! */
 struct alloced {
     uint8_t padding;
     uint8_t sbits;
     uint8_t fake;
 };
 

 struct FRAG {

 #ifdef CL_DEBUG

   uint16_t magic;

 #endif

   union {

       struct alloced a;
       struct unaligned_ptr next;

   } u;

 };

 #define FRAG_OVERHEAD (offsetof(struct FRAG, u.a.fake))

 static size_t align_to_pagesize(struct MP *mp, size_t size) {

   return (size / mp->psize + (size % mp->psize != 0)) * mp->psize;
 }
 

 static unsigned int to_bits(size_t size) {

   unsigned int i;

   for(i=0; i<FRAGSBITS; i++)
     if(fragsz[i] >= size) return i;

   return FRAGSBITS;

 }

 static size_t from_bits(unsigned int bits) {

   if (bits >= FRAGSBITS) return 0;

   return fragsz[bits];

 }
 

 static inline unsigned int alignof(size_t size)

 {
     /* conservative estimate of alignment.
      * A struct that needs alignment of 'align' is padded by the compiler
      * so that sizeof(struct)%align == 0 
      * (otherwise you wouldn't be able to use it in an array)
      * Also align = 2^n.
      * Largest alignment we need is 8 bytes (ptr/int64), since we don't use long
      * double or __aligned attribute.
      * This conservatively estimates that size 32 needs alignment of 8 (even if it might only
      * need an alignment of 4).
      */
     switch (size%8) {
 	case 0:
 	    return 8;
 	case 2:

 	case 6:

 	    return 2;
 	case 4:
 	    return 4;
 	default:
 	    return 1;
     }
 }
 
 static inline size_t alignto(size_t p, size_t size)
 {
     /* size is power of 2 */
     return (p+size-1)&(~(size-1));
 }
 

 struct MP *mpool_create() {
   struct MP mp, *mpool_p;

   size_t sz;

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

   mp.psize = cli_getpagesize();

   sz = align_to_pagesize(&mp, MIN_FRAGSIZE);

   mp.u.mpm.usize = sizeof(struct MPMAP);
   mp.u.mpm.size = sz - sizeof(mp);
   if (FRAGSBITS > 255) {
       cli_errmsg("At most 255 frags possible!\n");
       return NULL;
   }
   if (fragsz[0] < sizeof(void*)) {
       cli_errmsg("fragsz[0] too small!\n");
       return NULL;
   }

 #ifndef _WIN32
   if ((mpool_p = (struct MP *)mmap(NULL, sz, PROT_READ | PROT_WRITE, MAP_PRIVATE|ANONYMOUS_MAP, -1, 0)) == MAP_FAILED)
 #else
   if(!(mpool_p = (struct MP *)VirtualAlloc(NULL, sz, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE)))
 #endif
     return NULL;

 #ifdef CL_DEBUG
   memset(mpool_p, ALLOCPOISON, sz);
 #endif

   memcpy(mpool_p, &mp, sizeof(mp));

   spam("Map created @%p->%p - size %lu out of %lu - voidptr=%lu\n", mpool_p, (char *)mpool_p + mp.u.mpm.size, (unsigned long)mp.u.mpm.usize, (unsigned long)mp.u.mpm.size, (unsigned long)SIZEOF_VOID_P);

   return mpool_p;

 }
 

 void mpool_destroy(struct MP *mp) {

   struct MPMAP *mpm_next = mp->u.mpm.next, *mpm;

   size_t mpmsize;

   while((mpm = mpm_next)) {

     mpmsize = mpm->size;

     mpm_next = mpm->next;

 #ifdef CL_DEBUG
     memset(mpm, FREEPOISON, mpmsize);
 #endif

 #ifndef _WIN32

     munmap((void *)mpm, mpmsize);

 #else
     VirtualFree(mpm, 0, MEM_RELEASE);
 #endif

   }

   mpmsize = mp->u.mpm.size;

 #ifdef CL_DEBUG

   memset(mp, FREEPOISON, mpmsize + sizeof(*mp));

 #endif

 #ifndef _WIN32

   munmap((void *)mp, mpmsize + sizeof(*mp));

 #else
   VirtualFree(mp, 0, MEM_RELEASE);
 #endif

   spam("Map destroyed @%p\n", mp);

 }
 

 void mpool_flush(struct MP *mp) {

     size_t used = 0, mused;

     struct MPMAP *mpm_next = mp->u.mpm.next, *mpm;

 #ifdef EXIT_ON_FLUSH
     exit(0);
 #endif
 
     while((mpm = mpm_next)) {
 	mpm_next = mpm->next;
 	mused = align_to_pagesize(mp, mpm->usize);
 	if(mused < mpm->size) {

 #ifdef CL_DEBUG

 	    memset((char *)mpm + mused, FREEPOISON, mpm->size - mused);

 #endif

 #ifndef _WIN32

 	    munmap((char *)mpm + mused, mpm->size - mused);

 #else
 	    VirtualFree((char *)mpm + mused, mpm->size - mused, MEM_DECOMMIT);
 #endif

 	    mpm->size = mused;
 	}
 	used += mpm->size;
     }
 

     mused = align_to_pagesize(mp, mp->u.mpm.usize + sizeof(*mp));
     if (mused < mp->u.mpm.size + sizeof(*mp)) {

 #ifdef CL_DEBUG

 	memset((char *)mp + mused, FREEPOISON, mp->u.mpm.size + sizeof(*mp) - mused);

 #endif

 #ifndef _WIN32

 	munmap((char *)mp + mused, mp->u.mpm.size + sizeof(*mp) - mused);

 #else

 	VirtualFree((char *)mp + mused, mp->u.mpm.size + sizeof(*mp) - mused, MEM_DECOMMIT);

 #endif

 	mp->u.mpm.size = mused - sizeof(*mp);

     }

     used += mp->u.mpm.size;

     cli_dbgmsg("pool memory used: %.3f MB\n", used/(1024*1024.0));

     spam("Map flushed @%p, in use: %lu\n", mp, (unsigned long)used);

 }
 

 int mpool_getstats(const struct cl_engine *eng, size_t *used, size_t *total)

 {

   size_t sum_used = 0, sum_total = 0;
   const struct MPMAP *mpm;
   const mpool_t *mp;
   
   /* checking refcount is not necessary, but safer */
   if (!eng || !eng->refcount)
     return -1;
   mp = eng->mempool;
   if (!mp)
     return -1;

   for(mpm = &mp->u.mpm; mpm; mpm = mpm->next) {

     sum_used += mpm->usize;
     sum_total += mpm->size;
   }
   *used = sum_used;
   *total = sum_total;
   return 0;

 }
 

 static inline size_t align_increase(size_t size, size_t a)

 {
     /* we must pad with at most a-1 bytes to align start of struct */
     return size + a - 1;
 }
 

 static void* allocate_aligned(struct MPMAP *mpm, size_t size, unsigned align, const char *dbg)

 {
     /* We could always align the size to maxalign (8), however that wastes
      * space.
      * So just align the start of each allocation as needed, and then see in
      * which sbits bin we fit into.
      * Since we are no longer allocating in multiple of 8, we must always
      * align the start of each allocation!
      *| end of previous allocation | padding | FRAG_OVERHEAD | ptr_aligned |*/
     unsigned p = mpm->usize + FRAG_OVERHEAD;
     unsigned p_aligned = alignto(p, align);
     struct FRAG *f = (struct FRAG*)((char*)mpm + p_aligned - FRAG_OVERHEAD);
     unsigned realneed = p_aligned + size - mpm->usize;

     unsigned int sbits = to_bits(realneed);
     size_t needed = from_bits(sbits);

 #ifdef CL_DEBUG
     assert(p_aligned + size <= mpm->size);
 #endif
     f->u.a.sbits = sbits;
     f->u.a.padding = p_aligned - p;
 
     mpm->usize += needed;
 #ifdef CL_DEBUG
     assert(mpm->usize <= mpm->size);
 #endif

     spam("malloc @%p size %lu (%s) origsize %lu overhead %lu\n", f, (unsigned long)realneed, dbg, (unsigned long)size, (unsigned long)(needed - size));

 #ifdef CL_DEBUG
     f->magic = MPOOLMAGIC;
     memset(&f->u.a.fake, ALLOCPOISON, size);
 #endif
     return &f->u.a.fake;
 }
 

 void *mpool_malloc(struct MP *mp, size_t size) {

   size_t align = alignof(size);
   size_t i, needed = align_increase(size+FRAG_OVERHEAD, align);

   const unsigned int sbits = to_bits(needed);
   struct FRAG *f = NULL;

   struct MPMAP *mpm = &mp->u.mpm;

   /*  check_all(mp); */

   if (!size || sbits == FRAGSBITS) {

     cli_errmsg("mpool_malloc(): Attempt to allocate %lu bytes. Please report to https://bugzilla.clamav.net\n", (unsigned long) size);

     return NULL;
   }

 
   /* Case 1: We have a free'd frag */

   if((f = mp->avail[sbits])) {

     struct FRAG *fold = f;
     mp->avail[sbits] = f->u.next.ptr;
     /* we always have enough space for this, align_increase ensured that */

 #ifdef _WIN64

     f = (struct FRAG*)(alignto((unsigned long long)f + FRAG_OVERHEAD, align)-FRAG_OVERHEAD);

 #else

     f = (struct FRAG*)(alignto((unsigned long)f + FRAG_OVERHEAD, align)-FRAG_OVERHEAD);

 #endif

     f->u.a.sbits = sbits;
     f->u.a.padding = (char*)f - (char*)fold;

 #ifdef CL_DEBUG

     f->magic = MPOOLMAGIC;
     memset(&f->u.a.fake, ALLOCPOISON, size);

 #endif

     spam("malloc @%p size %lu (freed) origsize %lu overhead %lu\n", f, (unsigned long)(f->u.a.padding + FRAG_OVERHEAD + size), (unsigned long)size, (unsigned long)(needed - size));

     return &f->u.a.fake;

   }
 

   if (!(needed = from_bits(sbits))) {

     cli_errmsg("mpool_malloc(): Attempt to allocate %lu bytes. Please report to https://bugzilla.clamav.net\n", (unsigned long) size);

     return NULL;
   }

 
   /* Case 2: We have nuff room available for this frag already */
   while(mpm) {

     if(mpm->size - mpm->usize >= needed)
 	return allocate_aligned(mpm, size, align, "hole");

     mpm = mpm->next;
   }
 
   /* Case 3: We allocate more */

   if (needed + sizeof(*mpm) > MIN_FRAGSIZE)
   i = align_to_pagesize(mp, needed + sizeof(*mpm));

   else
   i = align_to_pagesize(mp, MIN_FRAGSIZE);

 
 #ifndef _WIN32

   if ((mpm = (struct MPMAP *)mmap(NULL, i, PROT_READ | PROT_WRITE, MAP_PRIVATE|ANONYMOUS_MAP, -1, 0)) == MAP_FAILED) {

 #else
   if (!(mpm = (struct MPMAP *)VirtualAlloc(NULL, i, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE))) {
 #endif

     cli_errmsg("mpool_malloc(): Can't allocate memory (%lu bytes).\n", (unsigned long)i);
     spam("failed to alloc %lu bytes (%lu requested)\n", (unsigned long)i, (unsigned long)size);

     return NULL;
   }

 #ifdef CL_DEBUG
   memset(mpm, ALLOCPOISON, i);
 #endif

   mpm->size = i;

   mpm->usize = sizeof(*mpm);

   mpm->next = mp->u.mpm.next;
   mp->u.mpm.next = mpm;

   return allocate_aligned(mpm, size, align, "new map");
 }
 
 static void *allocbase_fromfrag(struct FRAG *f)
 {

 #ifdef CL_DEBUG

     assert(f->u.a.padding < 8);

 #endif

     return (char*)f - f->u.a.padding;

 }
 

 void mpool_free(struct MP *mp, void *ptr) {

   struct FRAG *f = (struct FRAG *)((char *)ptr - FRAG_OVERHEAD);

   unsigned int sbits;

   if (!ptr) return;
 

 #ifdef CL_DEBUG

   assert(f->magic == MPOOLMAGIC && "Attempt to mpool_free a pointer we did not allocate!");

 #endif
 

   spam("free @%p\n", f);

   sbits = f->u.a.sbits;
   f = allocbase_fromfrag(f);
 #ifdef CL_DEBUG
   memset(f, FREEPOISON, from_bits(sbits));
 #endif
 
   f->u.next.ptr = mp->avail[sbits];
   mp->avail[sbits] = f;

 }
 

 void *mpool_calloc(struct MP *mp, size_t nmemb, size_t size) {

   size_t needed = nmemb*size;

   void *ptr;
 
   if(!needed) return NULL;

   if((ptr = mpool_malloc(mp, needed)))

     memset(ptr, 0, needed);
   return ptr;
 }
 

 void *mpool_realloc(struct MP *mp, void *ptr, size_t size) {

   struct FRAG *f = (struct FRAG *)((char *)ptr - FRAG_OVERHEAD);

   size_t csize;

   void *new_ptr;

   if (!ptr) return mpool_malloc(mp, size);

   if(!size || !(csize = from_bits(f->u.a.sbits))) {

     cli_errmsg("mpool_realloc(): Attempt to allocate %lu bytes. Please report to https://bugzilla.clamav.net\n", (unsigned long) size);

     return NULL;
   }

   csize -= FRAG_OVERHEAD + f->u.a.padding;
   if (csize >= size && (!f->u.a.sbits || from_bits(f->u.a.sbits-1)-FRAG_OVERHEAD-f->u.a.padding < size)) {

     spam("free @%p\n", f);

     spam("malloc @%p size %lu (self) origsize %lu overhead %lu\n", f, (unsigned long)(size + FRAG_OVERHEAD + f->u.a.padding), (unsigned long)size, (unsigned long)(csize-size+FRAG_OVERHEAD+f->u.a.padding));

     return ptr;

   }

   if (!(new_ptr = mpool_malloc(mp, size)))

     return NULL;

   memcpy(new_ptr, ptr, csize <= size ? csize : size);

   mpool_free(mp, ptr);

   return new_ptr;
 }
 

 void *mpool_realloc2(struct MP *mp, void *ptr, size_t size) {

     void *new_ptr = mpool_realloc(mp, ptr, size);
     if(new_ptr)
 	return new_ptr;

     mpool_free(mp, ptr);

     return NULL;

 }
 

 char *cli_mpool_hex2str(mpool_t *mp, const char *hex) {
     char *str;

     size_t len = strlen((const char*)hex);
 
     if (len&1) {

 	cli_errmsg("cli_hex2str(): Malformed hexstring: %s (length: %lu)\n", hex, (unsigned long)len);

 	return NULL;
     }
 
     str = mpool_malloc(mp, (len/2) + 1);

     if (str == NULL) { /* oops, we have a memory pool allocation failure */

 	cli_errmsg("cli_mpool_hex2str(): Can't allocate memory (%lu bytes).\n", (unsigned long)(len/2 + 1));

 	return NULL;
     }

     if (cli_hex2str_to(hex, str, len) == -1) {

 	mpool_free(mp, str);
 	return NULL;
     }
     str[len/2] = '\0';
     return str;

 }
 

 char *cli_mpool_strdup(mpool_t *mp, const char *s) {

   char *alloc;

   size_t strsz;

 
   if(s == NULL) {

     cli_errmsg("cli_mpool_strdup(): s == NULL. Please report to https://bugzilla.clamav.net\n");

     return NULL;
   }
 
   strsz = strlen(s) + 1;

   alloc = mpool_malloc(mp, strsz);

   if(!alloc)

     cli_errmsg("cli_mpool_strdup(): Can't allocate memory (%lu bytes).\n", (unsigned long) strsz);

   else
     memcpy(alloc, s, strsz);
   return alloc;
 }
 

 char *cli_mpool_strndup(mpool_t *mp, const char *s, size_t n) {
   char *alloc;
   size_t strsz;
 
   if(s == NULL) {

     cli_errmsg("cli_mpool_strndup(): s == NULL. Please report to https://bugzilla.clamav.net\n");

     return NULL;
   }
 

   strsz = cli_strnlen(s, n) + 1;

   alloc = mpool_malloc(mp, strsz);
   if(!alloc)
     cli_errmsg("cli_mpool_strndup(): Can't allocate memory (%lu bytes).\n", (unsigned long) strsz);
   else
     memcpy(alloc, s, strsz-1);
   alloc[strsz-1] = '\0';
   return alloc;
 }
 

 /* #define EXPAND_PUA */

 char *cli_mpool_virname(mpool_t *mp, const char *virname, unsigned int official) {

   char *newname, *pt;

 #ifdef EXPAND_PUA
   char buf[1024];
 #endif
 

   if(!virname)
     return NULL;
 

   if((pt = strchr(virname, ' ')))
       if((pt = strstr(pt, " (Clam)")))
 	  *pt='\0';

 
   if(!virname[0]) {
     cli_errmsg("cli_virname: Empty virus name\n");
     return NULL;
   }
 

 #ifdef EXPAND_PUA
     if(!strncmp(virname, "PUA.", 4)) {
 	snprintf(buf, sizeof(buf), "Possibly-Unwanted-Application(www.clamav.net/support/pua).%s", virname + 4);
 	buf[sizeof(buf)-1] = '\0';
 	virname = buf;
     }
 #endif

   if(official)

     return cli_mpool_strdup(mp, virname);

   newname = (char *)mpool_malloc(mp, strlen(virname) + 11 + 1);

   if(!newname) {
     cli_errmsg("cli_virname: Can't allocate memory for newname\n");
     return NULL;
   }
   sprintf(newname, "%s.UNOFFICIAL", virname);
   return newname;
 }
 
 

 uint16_t *cli_mpool_hex2ui(mpool_t *mp, const char *hex) {

   uint16_t *str;

   size_t len;

   
   len = strlen(hex);
 
   if(len % 2 != 0) {

     cli_errmsg("cli_mpool_hex2ui(): Malformed hexstring: %s (length: %lu)\n", hex, (unsigned long)len);

     return NULL;
   }
 

   str = mpool_calloc(mp, (len / 2) + 1, sizeof(uint16_t));

   if(!str)
     return NULL;
 
   if(cli_realhex2ui(hex, str, len))
     return str;
     

   mpool_free(mp, str);

   return NULL;
 }
 
 

 #ifdef DEBUGMPOOL

 void mpool_stats(struct MP *mp) {

   size_t i=0, ta=0, tu=0;

   struct MPMAP *mpm = &mp->u.mpm;

 
   cli_warnmsg("MEMORY POOL STATISTICS\n map  \tsize\tused\t%\n");
   while(mpm) {

     cli_warnmsg("- %lu\t%lu\t%lu\t%f%%\n", (unsigned long)i, (unsigned long)(mpm->size), (unsigned long)(mpm->usize), (float)mpm->usize/(float)mpm->size*100);

     ta+=mpm->size;
     tu+=mpm->usize;
     i++;
     mpm = mpm->next;
   }

   cli_warnmsg("MEMORY POOL SUMMARY\nMaps: %lu\nTotal: %lu\nUsed: %lu (%f%%)\n", (unsigned long)i, (unsigned long)ta, (unsigned long)tu, (float)tu/(float)ta*100);

 }
 
 void check_all(struct MP *mp) {

   struct MPMAP *mpm = &mp->u.mpm;

   while(mpm) {
     volatile unsigned char *c = (unsigned char *)mpm;

     size_t len = mpm->size;
     spam("checking object %p - size %lu\n", mpm, (unsigned long)len);

     while (len--) {
       c[len];
     }
     mpm=mpm->next;
   }
 }
 #endif /* DEBUGMPOOL */
 

 #else
 /* dummy definitions to make Solaris linker happy.
  * these symbols are declared in libclamav.map */

 void mpool_free() {}
 void mpool_create() {}
 void mpool_destroy() {}
 void mpool_getstats() {}

 void mpool_calloc() {}

 #endif /* USE_MPOOL */