597 lines
11 KiB
C
597 lines
11 KiB
C
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/*++
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Module Name:
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diamond.c
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Abstract:
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Diamond compression routines.
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This module contains functions to create a cabinet with
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files compressed using the mszip compression library.
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Author:
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Ovidiu Temereanca (ovidiut) 26-Oct-2000
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--*/
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#include "precomp.h"
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#include <fci.h>
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#include <io.h>
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#include <fcntl.h>
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static DWORD g_DiamondLastError;
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static PCSTR g_TempDir = NULL;
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HFCI
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(DIAMONDAPI* g_FCICreate) (
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PERF perf,
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PFNFCIFILEPLACED pfnfcifp,
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PFNFCIALLOC pfna,
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PFNFCIFREE pfnf,
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PFNFCIOPEN pfnopen,
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PFNFCIREAD pfnread,
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PFNFCIWRITE pfnwrite,
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PFNFCICLOSE pfnclose,
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PFNFCISEEK pfnseek,
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PFNFCIDELETE pfndelete,
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PFNFCIGETTEMPFILE pfnfcigtf,
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PCCAB pccab,
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void FAR * pv
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);
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BOOL
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(DIAMONDAPI* g_FCIAddFile) (
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HFCI hfci,
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char *pszSourceFile,
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char *pszFileName,
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BOOL fExecute,
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PFNFCIGETNEXTCABINET pfnfcignc,
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PFNFCISTATUS pfnfcis,
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PFNFCIGETOPENINFO pfnfcigoi,
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TCOMP typeCompress
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);
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/*
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BOOL
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(DIAMONDAPI* g_FCIFlushFolder) (
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HFCI hfci,
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PFNFCIGETNEXTCABINET pfnfcignc,
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PFNFCISTATUS pfnfcis
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);
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*/
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BOOL
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(DIAMONDAPI* g_FCIFlushCabinet) (
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HFCI hfci,
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BOOL fGetNextCab,
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PFNFCIGETNEXTCABINET pfnfcignc,
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PFNFCISTATUS pfnfcis
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);
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BOOL
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(DIAMONDAPI* g_FCIDestroy) (
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HFCI hfci
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);
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//
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// Callback functions to perform memory allocation, io, etc.
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// We pass addresses of these functions to diamond.
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//
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int
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DIAMONDAPI
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fciFilePlacedCB(
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OUT PCCAB Cabinet,
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IN PSTR FileName,
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IN LONG FileSize,
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IN BOOL Continuation,
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IN PVOID Context
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)
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/*++
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Routine Description:
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Callback used by diamond to indicate that a file has been
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comitted to a cabinet.
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No action is taken and success is returned.
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Arguments:
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Cabinet - cabinet structure to fill in.
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FileName - name of file in cabinet
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FileSize - size of file in cabinet
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Continuation - TRUE if this is a partial file, continuation
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of compression begun in a different cabinet.
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Context - supplies context information.
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Return Value:
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0 (success).
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--*/
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{
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return(0);
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}
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PVOID
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DIAMONDAPI
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fciAllocCB(
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IN ULONG NumberOfBytes
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)
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/*++
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Routine Description:
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Callback used by diamond to allocate memory.
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Arguments:
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NumberOfBytes - supplies desired size of block.
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Return Value:
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Returns pointer to a block of memory or NULL
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if memory cannot be allocated.
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--*/
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{
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return((PVOID)LocalAlloc(LMEM_FIXED,NumberOfBytes));
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}
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VOID
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DIAMONDAPI
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fciFreeCB(
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IN PVOID Block
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)
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/*++
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Routine Description:
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Callback used by diamond to free a memory block.
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The block must have been allocated with fciAlloc().
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Arguments:
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Block - supplies pointer to block of memory to be freed.
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Return Value:
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None.
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--*/
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{
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LocalFree((HLOCAL)Block);
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}
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FNFCIGETTEMPFILE(fciTempFileCB)
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{
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if (!GetTempFileNameA (g_TempDir ? g_TempDir : ".", "dc" ,0 , pszTempName)) {
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return FALSE;
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}
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DeleteFileA(pszTempName);
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return(TRUE);
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}
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BOOL
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DIAMONDAPI
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fciNextCabinetCB(
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OUT PCCAB Cabinet,
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IN DWORD CabinetSizeEstimate,
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IN PVOID Context
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)
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/*++
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Routine Description:
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Callback used by diamond to request a new cabinet file.
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This functionality is not used in our implementation.
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Arguments:
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Cabinet - cabinet structure to be filled in.
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CabinetSizeEstimate - estimated size of cabinet.
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Context - supplies context information.
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Return Value:
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FALSE (failure).
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--*/
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{
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return(FALSE);
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}
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BOOL
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DIAMONDAPI
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fciStatusCB(
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IN UINT StatusType,
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IN DWORD Count1,
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IN DWORD Count2,
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IN PVOID Context
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)
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/*++
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Routine Description:
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Callback used by diamond to give status on file compression
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and cabinet operations, etc.
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This routine has no effect.
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Arguments:
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Status Type - supplies status type.
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0 = statusFile - compressing block into a folder.
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Count1 = compressed size
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Count2 = uncompressed size
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1 = statusFolder - performing AddFilder.
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Count1 = bytes done
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Count2 = total bytes
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Context - supplies context info.
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Return Value:
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TRUE (success).
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--*/
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{
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return(TRUE);
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}
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FNFCIGETOPENINFO(fciOpenInfoCB)
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/*++
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Routine Description:
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Callback used by diamond to open a file and retreive information
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about it.
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Arguments:
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pszName - supplies filename of file about which information
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is desired.
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pdate - receives last write date of the file if the file exists.
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ptime - receives last write time of the file if the file exists.
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pattribs - receives file attributes if the file exists.
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pv - supplies context information.
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Return Value:
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C runtime handle to open file if success; -1 if file could
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not be located or opened.
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--*/
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{
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int h;
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WIN32_FIND_DATAA FindData;
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HANDLE FindHandle;
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FindHandle = FindFirstFileA(pszName,&FindData);
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if(FindHandle == INVALID_HANDLE_VALUE) {
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g_DiamondLastError = GetLastError();
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return(-1);
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}
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FindClose(FindHandle);
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FileTimeToDosDateTime(&FindData.ftLastWriteTime,pdate,ptime);
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*pattribs = (WORD)FindData.dwFileAttributes;
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h = _open(pszName,_O_RDONLY | _O_BINARY);
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if(h == -1) {
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g_DiamondLastError = GetLastError();
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return(-1);
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}
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return(h);
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}
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FNFCIOPEN(fciOpen)
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{
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int result;
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result = _open(pszFile, oflag, pmode);
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if (result == -1) {
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*err = errno;
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}
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return(result);
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}
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FNFCIREAD(fciRead)
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{
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UINT result;
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result = (UINT) _read((int)hf, memory, cb);
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if (result != cb) {
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*err = errno;
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}
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return(result);
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}
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FNFCIWRITE(fciWrite)
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{
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UINT result;
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result = (UINT) _write((int)hf, memory, cb);
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if (result != cb) {
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*err = errno;
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}
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return(result);
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}
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FNFCICLOSE(fciClose)
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{
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int result;
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result = _close((int)hf);
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if (result == -1) {
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*err = errno;
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}
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return(result);
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}
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FNFCISEEK(fciSeek)
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{
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long result;
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result = _lseek((int)hf, dist, seektype);
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if (result == -1) {
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*err = errno;
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}
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return(result);
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}
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FNFCIDELETE(fciDelete)
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{
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int result;
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result = _unlink(pszFile);
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if (result == -1) {
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*err = errno;
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}
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return(result);
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}
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HANDLE
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DiamondInitialize (
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IN PCTSTR TempDir
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)
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{
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HMODULE hCabinetDll;
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hCabinetDll = LoadLibrary (TEXT("cabinet.dll"));
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if (!hCabinetDll) {
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return FALSE;
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}
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(FARPROC)g_FCICreate = GetProcAddress (hCabinetDll, "FCICreate");
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(FARPROC)g_FCIAddFile = GetProcAddress (hCabinetDll, "FCIAddFile");
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(FARPROC)g_FCIFlushCabinet = GetProcAddress (hCabinetDll, "FCIFlushCabinet");
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(FARPROC)g_FCIDestroy = GetProcAddress (hCabinetDll, "FCIDestroy");
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if (!g_FCICreate || !g_FCIAddFile || !g_FCIFlushCabinet || !g_FCIDestroy) {
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DiamondTerminate (hCabinetDll);
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return NULL;
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}
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if (TempDir && !g_TempDir) {
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#ifdef UNICODE
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g_TempDir = UnicodeToAnsi (TempDir);
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#else
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g_TempDir = DupString (TempDir);
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#endif
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}
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return hCabinetDll;
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}
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VOID
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DiamondTerminate (
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IN HANDLE Handle
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)
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{
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FreeLibrary (Handle);
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g_FCICreate = NULL;
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g_FCIAddFile = NULL;
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g_FCIFlushCabinet = NULL;
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g_FCIDestroy = NULL;
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if (g_TempDir) {
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FREE ((PVOID)g_TempDir);
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g_TempDir = NULL;
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}
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}
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HANDLE
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DiamondStartNewCabinet (
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IN PCTSTR CabinetFilePath
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)
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{
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CCAB ccab;
|
||
|
|
ERF FciError;
|
||
|
|
HFCI FciContext;
|
||
|
|
PSTR p;
|
||
|
|
//
|
||
|
|
// Fill in the cabinet structure.
|
||
|
|
//
|
||
|
|
ZeroMemory (&ccab, sizeof(ccab));
|
||
|
|
|
||
|
|
#ifdef UNICODE
|
||
|
|
if (!WideCharToMultiByte (
|
||
|
|
CP_ACP,
|
||
|
|
0,
|
||
|
|
CabinetFilePath,
|
||
|
|
-1,
|
||
|
|
ccab.szCabPath,
|
||
|
|
sizeof (ccab.szCabPath) / sizeof (ccab.szCabPath[0]),
|
||
|
|
NULL,
|
||
|
|
NULL
|
||
|
|
)) {
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
lstrcpyA (ccab.szCabPath, CabinetFilePath);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
p = strrchr (ccab.szCabPath, '\\');
|
||
|
|
if(!p) {
|
||
|
|
SetLastError (ERROR_INVALID_PARAMETER);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
lstrcpyA (ccab.szCab, ++p);
|
||
|
|
*p = 0;
|
||
|
|
|
||
|
|
g_DiamondLastError = NO_ERROR;
|
||
|
|
|
||
|
|
FciContext = g_FCICreate(
|
||
|
|
&FciError,
|
||
|
|
fciFilePlacedCB,
|
||
|
|
fciAllocCB,
|
||
|
|
fciFreeCB,
|
||
|
|
fciOpen,
|
||
|
|
fciRead,
|
||
|
|
fciWrite,
|
||
|
|
fciClose,
|
||
|
|
fciSeek,
|
||
|
|
fciDelete,
|
||
|
|
fciTempFileCB,
|
||
|
|
&ccab,
|
||
|
|
NULL
|
||
|
|
);
|
||
|
|
|
||
|
|
return (HANDLE)FciContext;
|
||
|
|
}
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
DiamondAddFileToCabinet (
|
||
|
|
IN HANDLE CabinetContext,
|
||
|
|
IN PCTSTR SourceFile,
|
||
|
|
IN PCTSTR NameInCabinet
|
||
|
|
)
|
||
|
|
{
|
||
|
|
HFCI FciContext = (HFCI)CabinetContext;
|
||
|
|
BOOL b;
|
||
|
|
CHAR AnsiSourceFile[MAX_PATH];
|
||
|
|
CHAR AnsiNameInCabinet[MAX_PATH];
|
||
|
|
|
||
|
|
#ifdef UNICODE
|
||
|
|
if (!WideCharToMultiByte (
|
||
|
|
CP_ACP,
|
||
|
|
0,
|
||
|
|
SourceFile,
|
||
|
|
-1,
|
||
|
|
AnsiSourceFile,
|
||
|
|
sizeof (AnsiSourceFile) / sizeof (AnsiSourceFile[0]),
|
||
|
|
NULL,
|
||
|
|
NULL
|
||
|
|
) ||
|
||
|
|
!WideCharToMultiByte (
|
||
|
|
CP_ACP,
|
||
|
|
0,
|
||
|
|
NameInCabinet,
|
||
|
|
-1,
|
||
|
|
AnsiNameInCabinet,
|
||
|
|
sizeof (AnsiNameInCabinet) / sizeof (AnsiNameInCabinet[0]),
|
||
|
|
NULL,
|
||
|
|
NULL
|
||
|
|
)) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
lstrcpyA (AnsiSourceFile, SourceFile);
|
||
|
|
lstrcpyA (AnsiNameInCabinet, NameInCabinet);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
b = g_FCIAddFile (
|
||
|
|
FciContext,
|
||
|
|
AnsiSourceFile, // file to add to cabinet.
|
||
|
|
AnsiNameInCabinet, // filename part, name to store in cabinet.
|
||
|
|
FALSE, // fExecute on extract
|
||
|
|
fciNextCabinetCB, // routine for next cabinet (always fails)
|
||
|
|
fciStatusCB,
|
||
|
|
fciOpenInfoCB,
|
||
|
|
tcompTYPE_MSZIP
|
||
|
|
);
|
||
|
|
|
||
|
|
if (!b) {
|
||
|
|
SetLastError (g_DiamondLastError == NO_ERROR ? ERROR_INVALID_FUNCTION : g_DiamondLastError);
|
||
|
|
}
|
||
|
|
|
||
|
|
return b;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL
|
||
|
|
DiamondTerminateCabinet (
|
||
|
|
IN HANDLE CabinetContext
|
||
|
|
)
|
||
|
|
{
|
||
|
|
HFCI FciContext = (HFCI)CabinetContext;
|
||
|
|
BOOL b;
|
||
|
|
|
||
|
|
b = g_FCIFlushCabinet (
|
||
|
|
FciContext,
|
||
|
|
FALSE,
|
||
|
|
fciNextCabinetCB,
|
||
|
|
fciStatusCB
|
||
|
|
);
|
||
|
|
|
||
|
|
g_FCIDestroy (FciContext);
|
||
|
|
|
||
|
|
if (!b) {
|
||
|
|
SetLastError (g_DiamondLastError == NO_ERROR ? ERROR_INVALID_FUNCTION : g_DiamondLastError);
|
||
|
|
}
|
||
|
|
|
||
|
|
return b;
|
||
|
|
}
|