summaryrefslogtreecommitdiff
path: root/src/libxineadec/nosefart/memguard.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libxineadec/nosefart/memguard.c')
-rw-r--r--src/libxineadec/nosefart/memguard.c417
1 files changed, 0 insertions, 417 deletions
diff --git a/src/libxineadec/nosefart/memguard.c b/src/libxineadec/nosefart/memguard.c
deleted file mode 100644
index 35b3ef6ba..000000000
--- a/src/libxineadec/nosefart/memguard.c
+++ /dev/null
@@ -1,417 +0,0 @@
-/*
-** Nofrendo (c) 1998-2000 Matthew Conte (matt@conte.com)
-**
-**
-** This program is free software; you can redistribute it and/or
-** modify it under the terms of version 2 of the GNU Library General
-** Public License 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
-** Library General Public License for more details. To obtain a
-** copy of the GNU Library General Public License, write to the Free
-** Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Any permitted reproduction of these routines, in whole or in part,
-** must bear this legend.
-**
-**
-** memguard.c
-**
-** memory allocation wrapper routines
-**
-** NOTE: based on code (c) 1998 the Retrocade group
-** $Id: memguard.c,v 1.4 2004/02/20 19:53:39 komadori Exp $
-*/
-
-#include "types.h"
-
-/* undefine macro definitions, so we get real calls */
-#undef malloc
-#undef free
-
-#include <string.h>
-#include <stdlib.h>
-
-#if HAVE_INTTYPES_H
-# include <inttypes.h>
-#else
-# if HAVE_STDINT_H
-# include <stdint.h>
-# endif
-#endif
-
-#include "memguard.h"
-#include "log.h"
-
-
-/* Maximum number of allocated blocks at any one time */
-#define MAX_BLOCKS 16384
-
-/* Memory block structure */
-typedef struct memblock_s
-{
- void *block_addr;
- int block_size;
- char *file_name;
- int line_num;
-} memblock_t;
-
-boolean mem_debug = TRUE; /* debugging flag */
-
-
-#ifdef NOFRENDO_DEBUG
-
-static int mem_blockcount = 0; /* allocated block count */
-static memblock_t *mem_record = NULL;
-
-#define GUARD_STRING "GgUuAaRrDdSsTtRrIiNnGgBbLlOoCcKk"
-#define GUARD_LENGTH 64 /* before and after allocated block */
-
-
-/*
-** Check the memory guard to make sure out of bounds writes have not
-** occurred.
-*/
-static boolean mem_checkguardblock(void *data, int guard_size)
-{
- uint8 *orig, *chk, *blk;
- int i, alloc_size;
-
- /* get the original pointer */
- orig = (((uint8 *) data) - guard_size);
-
- /* get the size */
- alloc_size = *((uint32 *) orig);
-
- /* now skip past the size */
- blk = orig + sizeof(uint32);
-
- /* check leading guard string */
- chk = GUARD_STRING;
- for (i = sizeof(uint32); i < guard_size; i++)
- {
- if (0 == *chk)
- chk = GUARD_STRING;
- if (*blk != *chk)
- return FALSE;
- chk++;
- blk++;
- }
-
- /* check end of block */
- chk = GUARD_STRING;
- blk = ((uint8 *) data) + alloc_size;
- for (i = 0; i < guard_size; i++)
- {
- if (0 == *chk)
- chk = GUARD_STRING;
- if (*blk != *chk)
- return FALSE;
- chk++;
- blk++;
- }
-
- /* we're okay! */
- return TRUE;
-}
-
-/* free a guard block */
-static void mem_freeguardblock(void *data, int guard_size)
-{
- uint8 *orig = (((uint8 *) data) - guard_size);
-
- free(orig);
-}
-
-/* fill in the memory guard, advance the pointer to the 'real' memory */
-static void *mem_guardblock(int alloc_size, int guard_size)
-{
- void *orig;
- uint8 *blk, *chk;
- int i;
-
- /* allocate memory */
- orig = calloc(alloc_size + (guard_size * 2), 1);
- if (NULL == orig)
- return NULL;
-
- blk = ((uint8 *) orig);
-
- /* store the size of the newly allocated block*/
- *((uint32 *) blk) = alloc_size;
-
- /* skip past the size */
- blk += sizeof(uint32);
-
- /* put guard string at beginning of block */
- chk = GUARD_STRING;
- for (i = sizeof(uint32); i < guard_size; i++)
- {
- if (0 == *chk)
- chk = GUARD_STRING;
- *blk++ = *chk++;
- }
-
- /* check end of block */
- chk = GUARD_STRING;
- blk = guard_size + (uint8 *) orig + alloc_size;
- for (i = 0; i < guard_size; i++)
- {
- if (0 == *chk)
- chk = GUARD_STRING;
- *blk++ = *chk++;
- }
-
- return (void *) (guard_size + (uint8 *) orig);
-}
-
-
-/* Allocate a bunch of memory to keep track of all memory blocks */
-static void mem_init(void)
-{
- if (mem_record)
- {
- free(mem_record);
- mem_record = NULL;
- }
-
- mem_record = calloc(MAX_BLOCKS * sizeof(memblock_t), 1);
- ASSERT(mem_record);
-}
-
-/* add a block of memory to the master record */
-static void mem_addblock(void *data, int block_size, char *file, int line)
-{
- int i;
-
- for (i = 0; i < MAX_BLOCKS; i++)
- {
- if (NULL == mem_record[i].block_addr)
- {
- mem_record[i].block_addr = data;
- mem_record[i].block_size = block_size;
- mem_record[i].file_name = file;
- mem_record[i].line_num = line;
- return;
- }
- }
-
- ASSERT_MSG("out of memory blocks.");
-}
-
-/* find an entry in the block record and delete it */
-static void mem_deleteblock(void *data, char *file, int line)
-{
- int i;
- char fail[256];
-
- for (i = 0; i < MAX_BLOCKS; i++)
- {
- if (data == mem_record[i].block_addr)
- {
- if (FALSE == mem_checkguardblock(mem_record[i].block_addr, GUARD_LENGTH))
- {
- sprintf(fail, "mem_deleteblock 0x%08X at line %d of %s -- block corrupt",
- (uint32) data, line, file);
- ASSERT_MSG(fail);
- }
-
- memset(&mem_record[i], 0, sizeof(memblock_t));
- return;
- }
- }
-
- sprintf(fail, "mem_deleteblock 0x%08X at line %d of %s -- block not found",
- (uint32) data, line, file);
- ASSERT_MSG(fail);
-}
-#endif /* NOFRENDO_DEBUG */
-
-/* allocates memory and clears it */
-#ifdef NOFRENDO_DEBUG
-void *_my_malloc(int size, char *file, int line)
-#else
-void *_my_malloc(int size)
-#endif
-{
- void *temp;
- char fail[256];
-
-#ifdef NOFRENDO_DEBUG
- if (NULL == mem_record && FALSE != mem_debug)
- mem_init();
-
- if (FALSE != mem_debug)
- temp = mem_guardblock(size, GUARD_LENGTH);
- else
-#endif /* NOFRENDO_DEBUG */
- temp = calloc(sizeof(uint8), size);
-
- if (NULL == temp)
- {
-#ifdef NOFRENDO_DEBUG
- sprintf(fail, "malloc: out of memory at line %d of %s. block size: %d\n",
- line, file, size);
-#else
- sprintf(fail, "malloc: out of memory. block size: %d\n", size);
-#endif
- ASSERT_MSG(fail);
- }
-
-#ifdef NOFRENDO_DEBUG
- if (FALSE != mem_debug)
- mem_addblock(temp, size, file, line);
-
- mem_blockcount++;
-#endif
-
- return temp;
-}
-
-/* free a pointer allocated with my_malloc */
-#ifdef NOFRENDO_DEBUG
-void _my_free(void **data, char *file, int line)
-#else
-void _my_free(void **data)
-#endif
-{
- char fail[256];
-
- if (NULL == data || NULL == *data
- || ((uintptr_t)-1) == (uintptr_t) *data || ((uintptr_t)-1) == (uintptr_t) data)
- {
-#ifdef NOFRENDO_DEBUG
- sprintf(fail, "free: attempted to free NULL pointer at line %d of %s\n",
- line, file);
-#else
- sprintf(fail, "free: attempted to free NULL pointer.\n");
-#endif
- ASSERT_MSG(fail);
- }
-
-#ifdef NOFRENDO_DEBUG
- /* if this is true, we are in REAL trouble */
- if (0 == mem_blockcount)
- {
- ASSERT_MSG("free: attempted to free memory when no blocks available");
- }
-
- if (FALSE != mem_debug)
- mem_deleteblock(*data, file, line);
-
- mem_blockcount--; /* dec our block count */
-
- if (FALSE != mem_debug)
- mem_freeguardblock(*data, GUARD_LENGTH);
- else
-#endif /* NOFRENDO_DEBUG */
- free(*data);
-
- *data = NULL; /* NULL our source */
-}
-
-/* check for orphaned memory handles */
-void mem_checkleaks(void)
-{
-#ifdef NOFRENDO_DEBUG
- int i;
-
- if (FALSE == mem_debug)
- return;
-
- if (mem_blockcount)
- {
- log_printf("memory leak - %d unfreed block%s\n\n", mem_blockcount,
- mem_blockcount == 1 ? "" : "s");
-
- for (i = 0; i < MAX_BLOCKS; i++)
- {
- if (mem_record[i].block_addr)
- {
- log_printf("addr: 0x%08X, size: %d, line %d of %s%s\n",
- (uint32) mem_record[i].block_addr,
- mem_record[i].block_size,
- mem_record[i].line_num,
- mem_record[i].file_name,
- (FALSE == mem_checkguardblock(mem_record[i].block_addr, GUARD_LENGTH))
- ? " -- block corrupt" : "");
- }
- }
- }
- else
- log_printf("no memory leaks\n");
-#endif
-}
-
-void mem_checkblocks(void)
-{
-#ifdef NOFRENDO_DEBUG
- int i;
-
- if (FALSE == mem_debug)
- return;
-
- for (i = 0; i < MAX_BLOCKS; i++)
- {
- if (mem_record[i].block_addr)
- {
- if (FALSE == mem_checkguardblock(mem_record[i].block_addr, GUARD_LENGTH))
- {
- log_printf("addr: 0x%08X, size: %d, line %d of %s -- block corrupt\n",
- (uint32) mem_record[i].block_addr,
- mem_record[i].block_size,
- mem_record[i].line_num,
- mem_record[i].file_name);
- }
- }
- }
-#endif /* NOFRENDO_DEBUG */
-}
-
-/*
-** $Log: memguard.c,v $
-** Revision 1.4 2004/02/20 19:53:39 komadori
-** Fixed detection of linux framebuffer support. Included xineutils.h in dsputil_mlib.c and added to diff_to_ffmpeg_cvs.txt. Fixed function prototype in dsputil_mlib.c (should be sent back to ffmpeg-dev at some point). Fixed includes in nosefart. Fixed nested comments and includes in goom.
-**
-** Revision 1.3 2004/02/19 02:50:25 rockyb
-** Mandrake patches from
-** http://cvs.mandrakesoft.com/cgi-bin/cvsweb.cgi/SPECS/xine-lib/
-** via Goetz Waschk who reports:
-**
-** The amd64 patch (xine-lib-1-rc0a-amd64.patch) sets some conservative
-** CFLAGS for amd64,
-**
-** the lib64 patch (xine-lib-1-rc0a-lib64.patch) replaces hardcoded
-** /lib to support the lib64 library dir on amd64,
-**
-** the directfb patch (xine-lib-1-rc2-no-directfb.patch) adds a
-** configure option to disable directfb,
-**
-** the linuxfb patch (xine-lib-1-rc3a-no-linuxfb.patch) does the same
-** for linux framebuffer and
-**
-** the 64bit fixes patch (xine-lib-1-rc3-64bit-fixes.patch) doesn't
-** apply at the moment against the CVS -- demux_ogg.c was not applied.
-** it includes some 64 bit pointer and other fixes for 64bit architectures.
-** from Gwenole Beauchesne
-**
-** I haven't tested other than apply and compile.
-**
-** Revision 1.2 2003/12/05 15:55:01 f1rmb
-** cleanup phase II. use xprintf when it's relevant, use xine_xmalloc when it's relevant too. Small other little fix (can't remember). Change few internal function prototype because it xine_t pointer need to be used if some xine's internal sections. NOTE: libdvd{nav,read} is still too noisy, i will take a look to made it quit, without invasive changes. To be continued...
-**
-** Revision 1.1 2003/01/08 07:04:35 tmmm
-** initial import of Nosefart sources
-**
-** Revision 1.8 2000/06/26 04:54:48 matt
-** simplified and made more robust
-**
-** Revision 1.7 2000/06/12 01:11:41 matt
-** cleaned up some error output for win32
-**
-** Revision 1.6 2000/06/09 15:12:25 matt
-** initial revision
-**
-*/
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 18:31:25 +0000