591 lines
16 KiB
C
591 lines
16 KiB
C
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/*
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** main.c - Main module for DOS command-line LZA file compression / expansion
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** programs.
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**
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** Author: DavidDi
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**
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** This module is compiled twice - once for COMPRESS (COMPRESS defined) and
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** once for EXPAND (COMPRESS not defined).
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*/
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// Headers
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///////////
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#include <malloc.h>
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#include <stdio.h>
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#include <string.h>
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#include <io.h>
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#include <fcntl.h>
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#include <share.h>
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#include <sys\types.h>
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#include <sys\stat.h>
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#include "lz_common.h"
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#include "lz_buffers.h"
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#include "lz_header.h"
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#include "args.h"
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#include "main.h"
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#include "messages.h"
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#include <diamondc.h>
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#include "mydiam.h"
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// Globals
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///////////
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CHAR ARG_PTR *pszInFileName, // input file name
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*pszOutFileName, // output file name
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*pszTargetName; // target path name
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TCHAR ErrorMsg[1024];
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// Module Variables
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////////////////////
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#ifndef COMPRESS
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static BOOL bCopyingFile; // Is current file being copied or expanded?
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#endif
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// Local Prototypes
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////////////////////
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static VOID DisplayErrorMessage(INT fError);
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static VOID MakeDestFileName(CHAR ARG_PTR *argv[], CHAR ARG_PTR *pszDest);
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static BOOL GetCanonicalName(LPSTR lpszFileName, LPSTR lpszCanonicalBuf);
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static BOOL ActuallyTheSameFile(CHAR ARG_PTR *pszFile1,
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CHAR ARG_PTR *pszFile2);
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static BOOL ProcessNotification(CHAR ARG_PTR *pszSource,
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CHAR ARG_PTR *pszDest, WORD wNotification);
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/*
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** static void DisplayErrorMessage(int fError);
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**
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** Display error message for given error condition.
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**
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** Arguments: LZERROR_ code
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**
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** Returns: void
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**
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** Globals: none
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*/
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static VOID DisplayErrorMessage(INT fError)
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{
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switch(fError)
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{
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case LZERROR_BADINHANDLE:
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LoadString(NULL, SID_NO_OPEN_INPUT, ErrorMsg, 1024);
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printf(ErrorMsg, pszInFileName);
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break;
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case LZERROR_BADOUTHANDLE:
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LoadString(NULL, SID_NO_OPEN_OUTPUT, ErrorMsg, 1024);
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printf(ErrorMsg, pszOutFileName);
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break;
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case LZERROR_READ:
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LoadString(NULL, SID_NO_READ_INPUT, ErrorMsg, 1024);
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printf(ErrorMsg, pszInFileName);
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break;
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case LZERROR_WRITE:
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LoadString(NULL, SID_OUT_OF_SPACE, ErrorMsg, 1024);
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printf(ErrorMsg, pszOutFileName);
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break;
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case BLANK_ERROR:
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break;
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default:
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LoadString(NULL, SID_GEN_FAILURE, ErrorMsg, 1024);
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printf(ErrorMsg, pszInFileName, pszOutFileName);
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break;
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}
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}
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/*
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** static void MakeDestFileName(char ARG_PTR *argv[], char ARG_PTR *pszDest);
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**
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** Create the appropriate destination file name.
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**
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** Arguments: argv - like argument to main()
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** pszDest - pointer to destination file name buffer to be filled
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** in
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**
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** Returns: void
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**
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** Globals: none
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*/
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static VOID MakeDestFileName(CHAR ARG_PTR *argv[], CHAR ARG_PTR *pszDest)
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{
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CHAR ARG_PTR *pszDestFile;
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if (nNumFileSpecs == 2 && bTargetIsDir == FALSE && bDoRename == FALSE)
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// Compress a single input file to a single output file. N.b., we must
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// be careful to eat up the output file name command-line argument so
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// it doesn't get processed like another input file!
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STRCPY(pszDest, argv[GetNextFileArg(argv)]);
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else if (bTargetIsDir == TRUE)
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{
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// Prepend output file name with destination directory path name.
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STRCPY(pszDest, pszTargetName);
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// Isolate source file name from source file specification.
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pszDestFile = ExtractFileName(pszInFileName);
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// Add destination file name to destination directory path
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// specification.
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MakePathName(pszDest, pszDestFile);
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}
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else
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// Destination file name same as source file name. N.b., this is an
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// error condition if (bDoRename == FALSE).
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STRCPY(pszDest, pszInFileName);
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}
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/*
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** static BOOL GetCanonicalName(LPSTR lpszFileName, LPSTR lpszCanonicalBuf);
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**
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** Gets the canonical name for a given file specification.
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**
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** Arguments: pszFileName - file specification
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** szCanonicalBuf - buffer to be filled with canonical name
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**
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** Returns: TRUE if successful. FALSE if unsuccessful.
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**
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** N.b., szCanonicalBuf must be at least 128 bytes long. The contents of
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** szCanonicalBuf are only defined if the funstion returns TRUE.
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**
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*/
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static BOOL GetCanonicalName(LPSTR lpszFileName, LPSTR lpszCanonicalBuf)
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{
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BOOL bRetVal = FALSE;
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LPSTR lpszLastComp;
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return((BOOL) GetFullPathName(lpszFileName, MAX_PATH, lpszCanonicalBuf, &lpszLastComp));
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}
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/*
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** static BOOL ActuallyTheSameFile(char ARG_PTR *pszFile1,
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** char ARG_PTR *pszFile2);
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**
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** Checks to see if two file specifications point to the same physical file.
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**
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** Arguments: pszFile1 - first file specification
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** pszFile2 - second file specification
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**
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** Returns: BOOL - TRUE if the file specifications point to the same
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** physical file. FALSE if not.
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**
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** Globals: none
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*/
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static BOOL ActuallyTheSameFile(CHAR ARG_PTR *pszFile1,
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CHAR ARG_PTR *pszFile2)
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{
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CHAR szCanonicalName1[MAX_PATH],
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szCanonicalName2[MAX_PATH];
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if (GetCanonicalName(pszFile1, szCanonicalName1) &&
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GetCanonicalName(pszFile2, szCanonicalName2))
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{
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if (! lstrcmpiA(szCanonicalName1, szCanonicalName2))
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return(TRUE);
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}
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return(FALSE);
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}
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/*
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** static BOOL ProcessNotification(char ARG_PTR *pszSource,
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** char ARG_PTR *pszDest,
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** WORD wNotification);
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**
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** Callback function during file processing.
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**
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** Arguments: pszSource - source file name
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** pszDest - destination file name
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** wNotification - process type query
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**
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** Returns: BOOL - (wNotification == NOTIFY_START_*):
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** TRUE if the source file should be "processed" into
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** the destination file. FALSE if not.
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** else
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** TRUE.
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**
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** Globals: none
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*/
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static BOOL ProcessNotification(CHAR ARG_PTR *pszSource,
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CHAR ARG_PTR *pszDest, WORD wNotification)
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{
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switch(wNotification)
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{
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case NOTIFY_START_COMPRESS:
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{
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// Fail if the source and destination files are identical.
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if (ActuallyTheSameFile(pszSource, pszDest))
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{
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LoadString(NULL, SID_COLLISION, ErrorMsg, 1024);
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printf(ErrorMsg, pszSource);
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return(FALSE);
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}
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// Display start message.
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switch (byteAlgorithm)
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{
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case LZX_ALG:
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LoadString(
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NULL,
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SID_COMPRESSING_LZX,
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ErrorMsg,
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1024
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);
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printf(ErrorMsg, pszSource, pszDest,
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CompressionMemoryFromTCOMP(DiamondCompressionType)
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);
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break;
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case QUANTUM_ALG:
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LoadString(
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NULL,
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SID_COMPRESSING_QUANTUM,
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ErrorMsg,
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1024
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);
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printf(ErrorMsg, pszSource, pszDest,
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CompressionLevelFromTCOMP(DiamondCompressionType),
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CompressionMemoryFromTCOMP(DiamondCompressionType)
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);
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break;
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default:
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LoadString(
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NULL,
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(byteAlgorithm == MSZIP_ALG) ? SID_COMPRESSING_MSZIP : SID_COMPRESSING,
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ErrorMsg,
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1024
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);
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printf(ErrorMsg, pszSource, pszDest);
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}
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}
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break;
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default:
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break;
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}
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return(TRUE);
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}
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//
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// static BOOL FileTimeIsNewer( const char* pszFile1, const char* pszFile2 );
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//
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// Return value is TRUE if time stamp on pszFile1 is newer than the
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// time stamp on pszFile2. If either of the two files do not exist,
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// the return value is also TRUE (for indicating that pszFile2 should
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// be update from pszFile1). Otherwise, the return value is FALSE.
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//
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static BOOL FileTimeIsNewer( const char* pszFile1, const char* pszFile2 ) {
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struct _stat StatBufSource,
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StatBufDest;
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if (( _stat( pszFile2, &StatBufDest )) ||
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( _stat( pszFile1, &StatBufSource )) ||
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( StatBufSource.st_mtime > StatBufDest.st_mtime ))
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return TRUE;
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return FALSE;
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}
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LPSTR
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ValidListEntry(
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LPSTR szArg
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)
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{
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// Check for special character at front of file
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if ( '@' == szArg[0] )
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return szArg + 1;
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else
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return NULL;
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}
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BOOL
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GetNextFileListFile(
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const LPSTR szFileList,
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char **pszSource,
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char **pszDest
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)
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{
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static char szList[MAX_PATH] = {0},
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szSource[MAX_PATH] = {0},
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szDest[MAX_PATH] = {0};
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static BOOL bParsingFile = FALSE;
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static FILE *hFile;
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static int dEntryNum = 1;
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int dRetVal;
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// Initialize out paramters to NULL
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*pszSource = *pszDest = NULL;
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// Open file if we are not currently parsing another one
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if ( !bParsingFile ) {
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// Do not reopen last file used as this is our signal to stop
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if ( !_stricmp( szFileList, szList ) ) {
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return TRUE;
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}
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// Attempt to open specified file
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hFile = fopen( szFileList, "rt" );
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if ( NULL == hFile ) {
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LoadString( NULL, SID_NO_OPEN_INPUT, ErrorMsg, 1024 );
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printf( ErrorMsg, szFileList );
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return FALSE;
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}
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// Store new file name in static buffer
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strcpy( szList, szFileList );
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bParsingFile = TRUE;
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}
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dRetVal = fscanf( hFile, "%s %s", szSource, szDest );
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if ( EOF == dRetVal ) {
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fclose( hFile );
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bParsingFile = FALSE;
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return TRUE;
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}
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else if ( 0 == dRetVal ) {
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LoadString( NULL, SID_INVALID_LIST_FILE, ErrorMsg, 1024 );
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printf( ErrorMsg, dEntryNum );
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return FALSE;
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}
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// Point to new source and destination entries
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*pszSource = szSource;
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*pszDest = szDest;
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// Track entry
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dEntryNum++;
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return TRUE;
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}
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/*
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** int main(int argc, char *argv[]);
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**
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** Run command-line file compression program.
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**
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** Arguments: figure it out
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**
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** Returns: int - EXIT_SUCCESS if compression finished successfully,
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** EXIT_FAILURE if not.
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**
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** Globals: none
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*/
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INT __cdecl main(INT argc, CHAR *argv[])
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{
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INT iSourceFileName,
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fError,
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nTotalFiles = 0,
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nReturnCode = EXIT_SUCCESS;
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CHAR ARG_PTR pszDestFileName[MAX_PATH];
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CHAR chTargetFileName[ MAX_PATH ];
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|
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LONG cblTotInSize = 0L,
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cblTotOutSize = 0L;
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|
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PLZINFO pLZI;
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|
||
|
|
USHORT wLanguageId = LANGIDFROMLCID(GetThreadLocale());
|
||
|
|
|
||
|
|
if ((LANG_JAPANESE == PRIMARYLANGID(wLanguageId)) ||
|
||
|
|
(LANG_KOREAN == PRIMARYLANGID(wLanguageId)) ||
|
||
|
|
(LANG_CHINESE == PRIMARYLANGID(wLanguageId)))
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// This used to be #ifdef DBCS. Now a runtime check.
|
||
|
|
//
|
||
|
|
DWORD dw = GetConsoleOutputCP();
|
||
|
|
|
||
|
|
switch (dw) {
|
||
|
|
case 932:
|
||
|
|
case 936:
|
||
|
|
case 949:
|
||
|
|
case 950:
|
||
|
|
SetThreadLocale(MAKELCID(
|
||
|
|
MAKELANGID(
|
||
|
|
PRIMARYLANGID(GetSystemDefaultLangID()),
|
||
|
|
SUBLANG_ENGLISH_US),
|
||
|
|
SORT_DEFAULT));
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
SetThreadLocale(MAKELCID(
|
||
|
|
MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
|
||
|
|
SORT_DEFAULT ) );
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Parse command-line arguments.
|
||
|
|
if (ParseArguments(argc, argv) != TRUE)
|
||
|
|
return(EXIT_FAILURE);
|
||
|
|
|
||
|
|
// Display sign-on banner.
|
||
|
|
if ( bNoLogo == FALSE ) {
|
||
|
|
LoadString(NULL, SID_BANNER_TEXT, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set up global target path name.
|
||
|
|
pszTargetName = argv[iTarget];
|
||
|
|
|
||
|
|
if (bDisplayHelp == TRUE)
|
||
|
|
{
|
||
|
|
// User asked for help.
|
||
|
|
LoadString(NULL, SID_INSTRUCTIONS, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg);
|
||
|
|
LoadString(NULL, SID_INSTRUCTIONS2, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg);
|
||
|
|
LoadString(NULL, SID_INSTRUCTIONS3, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg);
|
||
|
|
return(EXIT_SUCCESS);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check for command line problems.
|
||
|
|
if (CheckArguments() == FALSE)
|
||
|
|
return(EXIT_FAILURE);
|
||
|
|
|
||
|
|
// Set up ring buffer and I/O buffers.
|
||
|
|
pLZI = InitGlobalBuffersEx();
|
||
|
|
if (!pLZI)
|
||
|
|
{
|
||
|
|
LoadString(NULL, SID_INSUFF_MEM, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg);
|
||
|
|
return(EXIT_FAILURE);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Process each source file.
|
||
|
|
while ((iSourceFileName = GetNextFileArg(argv)) != FAIL)
|
||
|
|
{
|
||
|
|
char *pszFileList = NULL,
|
||
|
|
*pszCurFile,
|
||
|
|
*pszCurDestFile;
|
||
|
|
|
||
|
|
// Determine if this is a directive file
|
||
|
|
if ( pszFileList = ValidListEntry( argv[iSourceFileName] ) ) {
|
||
|
|
if ( !GetNextFileListFile( pszFileList, &pszCurFile, &pszCurDestFile ) ) {
|
||
|
|
return (EXIT_FAILURE);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Handle empty directive lists
|
||
|
|
if ( NULL == pszCurFile ) continue;
|
||
|
|
}
|
||
|
|
// Otherwise use current argument as file to compress
|
||
|
|
else {
|
||
|
|
pszCurFile = argv[iSourceFileName];
|
||
|
|
}
|
||
|
|
|
||
|
|
do {
|
||
|
|
// Set up global input file name.
|
||
|
|
pszInFileName = CharLowerA(pszCurFile);
|
||
|
|
|
||
|
|
// Set up global output file name.
|
||
|
|
if ( NULL == pszFileList ) {
|
||
|
|
MakeDestFileName(argv, pszDestFileName);
|
||
|
|
pszOutFileName = CharLowerA(pszDestFileName);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
pszOutFileName = CharLowerA(pszCurDestFile);
|
||
|
|
}
|
||
|
|
|
||
|
|
strcpy( chTargetFileName, pszOutFileName );
|
||
|
|
|
||
|
|
if ( bDoRename )
|
||
|
|
MakeCompressedName( chTargetFileName );
|
||
|
|
|
||
|
|
if (( ! bUpdateOnly ) ||
|
||
|
|
( FileTimeIsNewer( pszInFileName, chTargetFileName ))) {
|
||
|
|
|
||
|
|
if(DiamondCompressionType) {
|
||
|
|
fError = DiamondCompressFile(ProcessNotification,pszInFileName,
|
||
|
|
pszOutFileName,bDoRename,pLZI);
|
||
|
|
} else {
|
||
|
|
fError = Compress(ProcessNotification, pszInFileName,
|
||
|
|
pszOutFileName, byteAlgorithm, bDoRename, pLZI);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(fError != TRUE)
|
||
|
|
// Deal with returned error codes.
|
||
|
|
DisplayErrorMessage(nReturnCode = fError);
|
||
|
|
else
|
||
|
|
{
|
||
|
|
nTotalFiles++;
|
||
|
|
|
||
|
|
if (pLZI && pLZI->cblInSize && pLZI->cblOutSize) {
|
||
|
|
|
||
|
|
// Keep track of cumulative statistics.
|
||
|
|
cblTotInSize += pLZI->cblInSize;
|
||
|
|
cblTotOutSize += pLZI->cblOutSize;
|
||
|
|
|
||
|
|
// Display report for each file.
|
||
|
|
LoadString(NULL, SID_FILE_REPORT, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg, pszInFileName, pLZI->cblInSize, pLZI->cblOutSize,
|
||
|
|
(INT)(100 - ((100 * (LONGLONG) pLZI->cblOutSize) / pLZI->cblInSize)));
|
||
|
|
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
LoadString(NULL, SID_EMPTY_FILE_REPORT, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg, pszInFileName, 0, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
// Separate individual file processing message blocks by a blank line.
|
||
|
|
printf("\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we are processing a directive file, get the next arguments
|
||
|
|
if ( NULL != pszFileList ) {
|
||
|
|
if ( !GetNextFileListFile( pszFileList, &pszCurFile, &pszCurDestFile ) ) {
|
||
|
|
return (EXIT_FAILURE);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} while ( NULL != pszFileList && NULL != pszCurFile );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Free memory used by ring buffer and I/O buffers.
|
||
|
|
FreeGlobalBuffers(pLZI);
|
||
|
|
|
||
|
|
// Display cumulative report for multiple files.
|
||
|
|
if (nTotalFiles > 1) {
|
||
|
|
|
||
|
|
// Scale results to get accurate %
|
||
|
|
LONG cblAdjInSize = cblTotInSize,
|
||
|
|
cblAdjOutSize = cblTotOutSize;
|
||
|
|
while (cblAdjInSize > 100000) {
|
||
|
|
cblAdjInSize /= 2;
|
||
|
|
cblAdjOutSize /= 2;
|
||
|
|
}
|
||
|
|
cblAdjOutSize += (cblAdjInSize / 200); // round off (+0.5%)
|
||
|
|
if (cblAdjOutSize < 0) {
|
||
|
|
cblAdjOutSize = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
LoadString(NULL, SID_TOTAL_REPORT, ErrorMsg, 1024);
|
||
|
|
printf(ErrorMsg, nTotalFiles, cblTotInSize, cblTotOutSize,
|
||
|
|
(INT)(100 - 100 * cblAdjOutSize / cblAdjInSize));
|
||
|
|
}
|
||
|
|
|
||
|
|
return(nReturnCode);
|
||
|
|
}
|
||
|
|
|