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#include "compress.h"
#include "aplib.h"
#include
#include
#ifdef _WIN64
# pragma comment(lib, "aplib_x64.lib")
#else
# pragma comment(lib, "aplib_x86.lib")
#endif // _WIN64
#ifndef NT_SUCCESS
# define NT_SUCCESS(s) ((NTSTATUS)(s)>=0)
#endif // NT_SUCCESS
typedef NTSTATUS(__stdcall *_RtlCompressBuffer)(
USHORT CompressionFormatAndEngine,
PUCHAR UncompressedBuffer,
ULONG UncompressedBufferSize,
PUCHAR CompressedBuffer,
ULONG CompressedBufferSize,
ULONG UncompressedChunkSize,
PULONG FinalCompressedSize,
PVOID WorkSpace
);
typedef NTSTATUS(__stdcall *_RtlGetCompressionWorkSpaceSize)(
USHORT CompressionFormatAndEngine,
PULONG CompressBufferWorkSpaceSize,
PULONG CompressFragmentWorkSpaceSize
);
unsigned int nt_compress(void *src, unsigned int srclen, void *dest, unsigned int destlen) {
HMODULE ntdll = GetModuleHandle("ntdll");
_RtlGetCompressionWorkSpaceSize xRtlGetCompressionWorkSpaceSize = (_RtlGetCompressionWorkSpaceSize)GetProcAddress(ntdll, "RtlGetCompressionWorkSpaceSize");
_RtlCompressBuffer xRtlCompressBuffer = (_RtlCompressBuffer)GetProcAddress(ntdll, "RtlCompressBuffer");
if (xRtlCompressBuffer == 0 || xRtlCompressBuffer == 0) {
printf("get compress function error.\n");
return COMPRESS_ERROR;
}
ULONG compressWorkSpaceSize = 0, compressFragmentSpaceSize;
NTSTATUS ret = xRtlGetCompressionWorkSpaceSize(COMPRESSION_FORMAT_LZNT1 | COMPRESSION_ENGINE_MAXIMUM,
&compressWorkSpaceSize,
&compressFragmentSpaceSize);
if (!NT_SUCCESS(ret)) {
printf("get compression work space size error.\n");
return COMPRESS_ERROR;
}
void *compressWorkSpace = malloc(compressWorkSpaceSize);
if (compressWorkSpace == 0) {
printf("malloc work space error.\n");
return COMPRESS_ERROR;
}
ULONG compressedSize;
ret = xRtlCompressBuffer(COMPRESSION_FORMAT_LZNT1 | COMPRESSION_ENGINE_MAXIMUM,
(PUCHAR)src,
srclen,
(PUCHAR)dest,
destlen,
0,
&compressedSize,
compressWorkSpace);
free(compressWorkSpace);
if (!NT_SUCCESS(ret)) {
printf("compress buffer error.\n");
return COMPRESS_ERROR;
}
return (unsigned int)compressedSize;
};
unsigned int aplib_compress(void *src, unsigned int srclen, void *dest, unsigned int destlen) {
void *workMemory = malloc(aP_workmem_size(srclen));
if (workMemory == 0) {
printf("get compression work space size error.\n");
return COMPRESS_ERROR;
}
unsigned int ret = aP_pack(src, dest, srclen, workMemory, 0, 0);
free(workMemory);
return ret;
};