91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
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#include<windows.h>
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#include<stdio.h>
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#include<stdlib.h>
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#include<malloc.h>
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DWORD NumberOfHeaps;
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HANDLE ProcessHeaps[ 64 ];
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char MyBuffer[ 256 ];
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int
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_cdecl
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main()
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{
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struct _heapinfo info;
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PROCESS_HEAP_ENTRY Entry;
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size_t i;
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LPBYTE s;
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info._pentry = NULL;
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setvbuf( stdout, MyBuffer, _IOFBF, sizeof( MyBuffer ) );
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_heapset( 0xAE );
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while (_heapwalk( &info ) == _HEAPOK) {
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printf( "%08x: %05x - %s", info._pentry, info._size, info._useflag ? "busy" : "free" );
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if (info._useflag == _FREEENTRY) {
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s = (LPBYTE)info._pentry;
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for (i=0; i<info._size; i++) {
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if (s[i] != 0xAE) {
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printf( " *** free block invalid at offset %x [%x]", i, s[i] );
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break;
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}
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}
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}
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printf( "\n" );
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fflush( stdout );
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}
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printf( "*** end of heap ***\n\n" );
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fflush( stdout );
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NumberOfHeaps = GetProcessHeaps( 64, ProcessHeaps );
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Entry.lpData = NULL;
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for (i=0; i<NumberOfHeaps; i++) {
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printf( "Heap[ %u ]: %x HeapCompact result: %lx\n",
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i,
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ProcessHeaps[ i ],
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HeapCompact( ProcessHeaps[ i ], 0 )
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);
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while (HeapWalk( ProcessHeaps[ i ], &Entry )) {
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if (Entry.wFlags & PROCESS_HEAP_REGION) {
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printf( " %08x: %08x - Region(First: %08x Last: %08x Committed: %x Uncommitted: %08x)\n",
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Entry.lpData, Entry.cbData,
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Entry.Region.lpFirstBlock,
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Entry.Region.lpLastBlock,
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Entry.Region.dwCommittedSize,
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Entry.Region.dwUnCommittedSize
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);
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}
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else
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if (Entry.wFlags & PROCESS_HEAP_UNCOMMITTED_RANGE) {
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printf( " %08x: %08x - Uncommitted\n",
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Entry.lpData, Entry.cbData
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);
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}
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else
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if (Entry.wFlags & PROCESS_HEAP_ENTRY_BUSY) {
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printf( " %08x: %08x - Busy", Entry.lpData, Entry.cbData );
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if (Entry.wFlags & PROCESS_HEAP_ENTRY_MOVEABLE) {
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printf( " hMem: %08x", Entry.Block.hMem );
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}
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if (Entry.wFlags & PROCESS_HEAP_ENTRY_DDESHARE) {
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printf( " DDE" );
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}
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printf( "\n" );
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}
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else {
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printf( " %08x: %08x - Free\n", Entry.lpData, Entry.cbData );
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}
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fflush( stdout );
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}
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printf( "*** end of heap ***\n\n" );
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fflush( stdout );
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}
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return 0;
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}
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