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unzip/wince/intrface.cpp

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/*
Copyright (c) 1990-2009 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2009-Jan-02 or later
(the contents of which are also included in unzip.h) for terms of use.
If, for some reason, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
//******************************************************************************
//
// File: INTRFACE.CPP
//
// Description: This module acts as the interface between the Info-ZIP code and
// our Windows code in WINMAIN.CPP. We expose the needed
// functions to query a file list, test file(s), extract file(s),
// and display a zip file comment. The windows code is never
// bothered with understanding the Globals structure "Uz_Globs".
//
// This module also catches all the callbacks from the Info-ZIP
// code, cleans up the data provided in the callback, and then
// forwards the information to the appropriate function in the
// windows code. These callbacks include status messages, file
// lists, comments, password prompt, and file overwrite prompts.
//
// Finally, this module implements the few functions that the
// Info-ZIP code expects the port to implement. These functions are
// OS dependent and are mostly related to validating file names and
// directories, and setting file attributes and dates of saved files.
//
// Copyright: All the source files for Pocket UnZip, except for components
// written by the Info-ZIP group, are copyrighted 1997 by Steve P.
// Miller. As of June 1999, Steve P. Miller has agreed to apply
// the Info-ZIP License (see citation on top of this module)
// to his work. See the contents of this License for terms
// and conditon of using the product "Pocket UnZip".
//
// Disclaimer: All project files are provided "as is" with no guarantee of
// their correctness. The authors are not liable for any outcome
// that is the result of using this source. The source for Pocket
// UnZip has been placed in the public domain to help provide an
// understanding of its implementation. You are hereby granted
// full permission to use this source in any way you wish, except
// to alter Pocket UnZip itself. For comments, suggestions, and
// bug reports, please write to stevemil@pobox.com or the Info-ZIP
// mailing list Zip-Bugs@lists.wku.edu.
//
// Functions: DoListFiles
// DoExtractOrTestFiles
// DoGetComment
// SetExtractToDirectory
// InitGlobals
// FreeGlobals
// ExtractOrTestFilesThread
// IsFileOrDirectory
// SmartCreateDirectory
// CheckForAbort2
// SetCurrentFile
// UzpMessagePrnt2
// UzpInput2
// UzpMorePause
// UzpPassword
// UzpReplace
// UzpSound
// SendAppMsg
// win_fprintf
// test_NT
// utimeToFileTime
// GetFileTimes
// IsOldFileSystem
// SetFileSize
// close_outfile
// do_wild
// mapattr
// mapname
// checkdir
// match
// iswild
// conv_to_rule
// GetPlatformLocalTimezone
// wide_to_local_string
//
//
// Date Name History
// -------- ------------ -----------------------------------------------------
// 02/01/97 Steve Miller Created (Version 1.0 using Info-ZIP UnZip 5.30)
// 08/01/99 Johnny Lee, Christian Spieler, Steve Miller, and others
// Adapted to UnZip 5.41 (Version 1.1)
// 12/01/02 Chr. Spieler Updated interface for UnZip 5.50
// 02/23/05 Chr. Spieler Modified and optimized utimeToFileTime() to support
// the NO_W32TIMES_IZFIX compilation option
// 11/01/09 Chr. Spieler Added wide_to_local_string() conversion function
// from win32.c, which is currently needed for the
// new UTF-8 names support (until we manage to port
// the complete UnZip code to native wide-char support).
//
//*****************************************************************************
//*****************************************************************************
// The following information and structure are here just for reference
//*****************************************************************************
//
// The Windows CE version of Unzip builds with the following defines set:
//
//
// WIN32
// _WINDOWS
// UNICODE
// _UNICODE
// WIN32_LEAN_AND_MEAN
// STRICT
//
// POCKET_UNZIP (Main define - Always set)
//
// UNZIP_INTERNAL
// WINDLL
// DLL
// REENTRANT
// USE_EF_UT_TIME
// NO_ZIPINFO
// NO_STDDEF_H
// NO_NTSD_EAS
//
// USE_SMITH_CODE (optional - See INSTALL document)
// LZW_CLEAN (optional - See INSTALL document)
// NO_W32TIMES_IZFIX (optional - See INSTALL document)
//
// DEBUG (When building for Debug)
// _DEBUG (When building for Debug)
// NDEBUG (When building for Retail)
// _NDEBUG (When building for Retail)
//
// _WIN32_WCE=100 (When building for Windows CE native)
//
//****************************************************************************/
extern "C" {
#define __INTRFACE_CPP__
#define UNZIP_INTERNAL
#include "unzip.h"
#include "crypt.h" // Needed to pick up CRYPT define
#include <commctrl.h>
#include "intrface.h"
#include "winmain.h"
#ifndef _WIN32_WCE
#include <process.h> // _beginthreadex() and _endthreadex()
#endif
}
#include <tchar.h> // Must be outside of extern "C" block
#ifdef POCKET_UNZIP
//******************************************************************************
//***** "Local" Global Variables
//******************************************************************************
static USERFUNCTIONS g_uf;
static EXTRACT_INFO *g_pExtractInfo = NULL;
static FILE_NODE *g_pFileLast = NULL;
static CHAR g_szExtractToDirectory[_MAX_PATH];
static BOOL g_fOutOfMemory;
//******************************************************************************
//***** Local Function Prototypes
//******************************************************************************
// Internal functions of the GUI interface.
static Uz_Globs* InitGlobals(LPCSTR szZipFile);
static void FreeGlobals(Uz_Globs *pG);
#ifdef _WIN32_WCE
static DWORD WINAPI ExtractOrTestFilesThread(LPVOID lpv);
#else
static unsigned __stdcall ExtractOrTestFilesThread(void *lpv);
#endif
static void SetCurrentFile(__GPRO);
#endif // POCKET_UNZIP
// Internal helper functions for the UnZip core.
static int IsFileOrDirectory(LPCTSTR szPath);
static BOOL SmartCreateDirectory(__GPRO__ LPCSTR szDirectory, BOOL *pNewDir);
static void utimeToFileTime(time_t ut, FILETIME *pft, BOOL fOldFileSystem);
static int GetFileTimes(Uz_Globs *pG, FILETIME *pftCreated,
FILETIME *pftAccessed, FILETIME *pftModified);
// Check for FAT, VFAT, HPFS, etc.
static BOOL IsOldFileSystem(char *szPath);
#ifdef POCKET_UNZIP
extern "C" {
// Local variants of callbacks from Info-ZIP code.
// (These functions are not referenced by name outside this source module.)
int UZ_EXP UzpMessagePrnt2(zvoid *pG, uch *buffer, ulg size, int flag);
int UZ_EXP UzpInput2(zvoid *pG, uch *buffer, int *size, int flag);
int UZ_EXP CheckForAbort2(zvoid *pG, int fnflag, ZCONST char *zfn,
ZCONST char *efn, ZCONST zvoid *details);
int WINAPI UzpReplace(LPSTR szFile, unsigned nbufsiz);
void WINAPI UzpSound(void);
#ifdef Z_UINT8_DEFINED
void WINAPI SendAppMsg(z_uint8 uzSize, z_uint8 uzCompressedSize,
#else
void WINAPI SendAppMsg(ulg uzSize, ulg uzCompressedSize,
#endif
unsigned ratio,
unsigned month, unsigned day, unsigned year,
unsigned hour, unsigned minute, char uppercase,
LPCSTR szPath, LPCSTR szMethod, ulg dwCRC,
char chCrypt);
} // extern "C"
//******************************************************************************
//***** Our exposed interface functions to the Info-ZIP core
//******************************************************************************
int DoListFiles(LPCSTR szZipFile) {
int result;
// Create our Globals struct and fill it in whith some default values.
Uz_Globs *pG = InitGlobals(szZipFile);
if (!pG) {
return PK_MEM;
}
pG->UzO.vflag = 1; // verbosely: list directory (for WIN32 it is 0 or 1)
pG->process_all_files = TRUE; // improves speed
g_pFileLast = NULL;
g_fOutOfMemory = FALSE;
// We wrap some exception handling around the entire Info-ZIP engine to be
// safe. Since we are running on a device with tight memory configurations,
// all sorts of problems can arise when we run out of memory.
__try {
// Call the unzip routine. We will catch the file information in a
// callback to SendAppMsg().
result = process_zipfiles(pG);
// Make sure we didn't run out of memory in the process.
if (g_fOutOfMemory) {
result = PK_MEM;
}
} __except(EXCEPTION_EXECUTE_HANDLER) {
// Catch any exception here.
DebugOut(TEXT("Exception 0x%08X occurred in DoListFiles()"),
GetExceptionCode());
result = PK_EXCEPTION;
}
g_pFileLast = NULL;
// It is possible that the ZIP engine change the file name a bit (like adding
// a ".zip" if needed). If so, we will pick up the new name.
if ((result != PK_EXCEPTION) && pG->zipfn && *pG->zipfn) {
strcpy(g_szZipFile, pG->zipfn);
}
// Free our globals.
FreeGlobals(pG);
return result;
}
//******************************************************************************
BOOL DoExtractOrTestFiles(LPCSTR szZipFile, EXTRACT_INFO *pei) {
// WARNING!!! This functions hands the EXTRACT_INFO structure of to a thread
// to perform the actual extraction/test. When the thread is done, it will
// send a message to the progress dialog. The calling function must not
// delete the EXTRACT_INFO structure until it receives the message. Currently,
// this is not a problem for us since the structure lives on the stack of the
// calling thread. The calling thread then displays a dialog that blocks the
// calling thread from clearing the stack until the dialog is dismissed, which
// occurs when the dialog receives the message.
// Create our globals so we can store the file name.
Uz_Globs *pG = InitGlobals(szZipFile);
if (!pG) {
pei->result = PK_MEM;
SendMessage(g_hDlgProgress, WM_PRIVATE, MSG_OPERATION_COMPLETE, (LPARAM)pei);
return FALSE;
}
// Store a global pointer to the Extract structure so it can be reached from
// our thread and callback functions.
g_pExtractInfo = pei;
// Spawn our thread
DWORD dwThreadId;
HANDLE hThread;
#ifdef _WIN32_WCE
// On CE, we use good old CreateThread() since the WinCE CRT does not
// allocate per-thread storage.
hThread = CreateThread(NULL, 0, ExtractOrTestFilesThread, pG, 0,
&dwThreadId);
#else
// On NT, we need use the CRT's thread function so that we don't leak any
// CRT allocated memory when the thread exits.
hThread = (HANDLE)_beginthreadex(NULL, 0, ExtractOrTestFilesThread, pG, 0,
(unsigned*)&dwThreadId);
#endif
// Bail out if our thread failed to create.
if (!hThread) {
DebugOut(TEXT("CreateThread() failed [%u]"), GetLastError());
// Set our error as a memory error.
g_pExtractInfo->result = PK_MEM;
// Free our globals.
FreeGlobals(pG);
// Tell the progress dialog that we are done.
SendMessage(g_hDlgProgress, WM_PRIVATE, MSG_OPERATION_COMPLETE, (LPARAM)pei);
g_pExtractInfo = NULL;
return FALSE;
}
// Close our thread handle since we have no use for it.
CloseHandle(hThread);
return TRUE;
}
//******************************************************************************
int DoGetComment(LPCSTR szZipFile) {
int result;
// Create our Globals struct and fill it in with some default values.
Uz_Globs *pG = InitGlobals(szZipFile);
if (!pG) {
return PK_MEM;
}
pG->UzO.zflag = TRUE; // display the zipfile comment
// We wrap some exception handling around the entire Info-ZIP engine to be
// safe. Since we are running on a device with tight memory configurations,
// all sorts of problems can arise when we run out of memory.
__try {
// Call the unzip routine. We will catch the comment string in a callback
// to win_fprintf().
result = process_zipfiles(pG);
} __except(EXCEPTION_EXECUTE_HANDLER) {
// Catch any exception here.
DebugOut(TEXT("Exception 0x%08X occurred in DoGetComment()"),
GetExceptionCode());
result = PK_EXCEPTION;
}
// Free our globals.
FreeGlobals(pG);
return result;
}
//******************************************************************************
BOOL SetExtractToDirectory(LPTSTR szDirectory) {
BOOL fNeedToAddWack = FALSE;
// Remove any trailing wack from the path.
int length = _tcslen(szDirectory);
if ((length > 0) && (szDirectory[length - 1] == TEXT('\\'))) {
szDirectory[--length] = TEXT('\0');
fNeedToAddWack = TRUE;
}
#ifndef _WIN32_WCE
// Check to see if a root directory was specified.
if ((length == 2) && isalpha(szDirectory[0]) && (szDirectory[1] == ':')) {
// If just a root is specified, we need to only verify the drive letter.
if (!(GetLogicalDrives() & (1 << (tolower(szDirectory[0]) - (int)'a')))) {
// This drive does not exist. Bail out with a failure.
return FALSE;
}
} else
#endif
// We only verify path if length is >0 since we know "\" is valid.
if (length > 0) {
// Verify the the path exists and that it is a directory.
if (IsFileOrDirectory(szDirectory) != 2) {
return FALSE;
}
}
// Store the directory for when we do an extract.
TSTRTOMBS(g_szExtractToDirectory, szDirectory, countof(g_szExtractToDirectory));
// We always want a wack at the end of our path.
strcat(g_szExtractToDirectory, "\\");
// Add the wack back to the end of the path.
if (fNeedToAddWack) {
_tcscat(szDirectory, TEXT("\\"));
}
return TRUE;
}
//******************************************************************************
//***** Internal functions
//******************************************************************************
static Uz_Globs* InitGlobals(LPCSTR szZipFile)
{
// Create our global structure - pG
CONSTRUCTGLOBALS();
// Bail out if we failed to allocate our Globals structure.
if (!pG) {
return NULL;
}
// Clear our USERFUNCTIONS structure
ZeroMemory(&g_uf, sizeof(g_uf));
// Initialize a global pointer to our USERFUNCTIONS structure that is
// used by WINMAIN.CPP to access it (without using the pG construction).
lpUserFunctions = &g_uf;
// Store a global pointer to our USERFUNCTIONS structure in pG so that
// the generic Info-ZIP code LIST.C and PROCESS.C can access it.
pG->lpUserFunctions = &g_uf;
// Fill in all our callback functions.
pG->message = UzpMessagePrnt2;
pG->input = UzpInput2;
pG->mpause = UzpMorePause;
pG->statreportcb = CheckForAbort2;
pG->lpUserFunctions->replace = UzpReplace;
pG->lpUserFunctions->sound = UzpSound;
pG->lpUserFunctions->SendApplicationMessage = SendAppMsg;
pG->lpUserFunctions->SendApplicationMessage_i32 = NULL;
#if CRYPT
pG->decr_passwd = UzpPassword;
#endif
// Match filenames case-sensitively. We can do this since we can guarantee
// exact case because the user can only select files via our UI.
pG->UzO.C_flag = FALSE;
// Allocate and store the ZIP file name in pG->zipfn
if (!(pG->zipfnPtr = new char[FILNAMSIZ])) {
FreeGlobals(pG);
return NULL;
}
pG->zipfn = pG->zipfnPtr;
strcpy(pG->zipfn, szZipFile);
// Allocate and store the ZIP file name in pG->zipfn. This needs to done
// so that do_wild() does not wind up clearing out the zip file name when
// it returns in process.c
if (!(pG->wildzipfnPtr = new char[FILNAMSIZ])) {
FreeGlobals(pG);
return NULL;
}
pG->wildzipfn = pG->wildzipfnPtr;
strcpy(pG->wildzipfn, szZipFile);
return pG;
}
//******************************************************************************
static void FreeGlobals(Uz_Globs *pG)
{
// Free our ZIP file name
if (pG->zipfnPtr) {
delete[] pG->zipfnPtr;
pG->zipfnPtr = pG->zipfn = NULL;
}
// Free our wild name buffer
if (pG->wildzipfnPtr) {
delete[] pG->wildzipfnPtr;
pG->wildzipfnPtr = pG->wildzipfn = NULL;
}
// Free everything else.
DESTROYGLOBALS();
}
//******************************************************************************
#ifdef _WIN32_WCE
// On WinCE, we declare our thread function the way CreateThread() likes it.
static DWORD WINAPI ExtractOrTestFilesThread(LPVOID lpv)
#else
// On WinNT, we declare our thread function the way _beginthreadex likes it.
static unsigned __stdcall ExtractOrTestFilesThread(void *lpv)
#endif
{
Uz_Globs *pG = (Uz_Globs*)lpv;
if (g_pExtractInfo->fExtract) {
pG->extract_flag = TRUE;
switch (g_pExtractInfo->overwriteMode) {
case OM_NEWER: // Update (extract only newer/brand-new files)
pG->UzO.uflag = TRUE;
break;
case OM_ALWAYS: // OK to overwrite files without prompting
pG->UzO.overwrite_all = TRUE;
break;
case OM_NEVER: // Never overwrite files (no prompting)
pG->UzO.overwrite_none = TRUE;
break;
default: // Force a prompt
pG->UzO.overwrite_all = FALSE;
pG->UzO.overwrite_none = FALSE;
pG->UzO.uflag = FALSE;
break;
}
// Throw away paths if requested.
pG->UzO.jflag = !g_pExtractInfo->fRestorePaths;
} else {
pG->UzO.tflag = TRUE;
}
if (g_pExtractInfo->szFileList) {
pG->filespecs = g_pExtractInfo->dwFileCount;
pG->pfnames = g_pExtractInfo->szFileList;
} else {
// Improves performance if all files are being extracted.
pG->process_all_files = TRUE;
}
// Invalidate our file offset to show that we are starting a new operation.
g_pExtractInfo->uzFileOffset = ~(zusz_t)0;
// We wrap some exception handling around the entire Info-ZIP engine to be
// safe. Since we are running on a device with tight memory configurations,
// all sorts of problems can arise when we run out of memory.
__try {
// Put a jump marker on our stack so the user can abort.
int error = setjmp(dll_error_return);
// If setjmp() returns 0, then we just set our jump marker and we can
// continue with the operation. If setjmp() returned something else,
// then we reached this point because the operation was aborted and
// set our instruction pointer back here.
if (error > 0) {
// We already called process_zipfiles() and were thrown back here.
g_pExtractInfo->result = (error == 1) ? PK_BADERR : error;
} else {
// Entering Info-ZIP... close your eyes.
g_pExtractInfo->result = process_zipfiles(pG);
}
} __except(EXCEPTION_EXECUTE_HANDLER) {
// Catch any exception here.
DebugOut(TEXT("Exception 0x%08X occurred in ExtractOrTestFilesThread()"),
GetExceptionCode());
g_pExtractInfo->result = PK_EXCEPTION;
}
// Free our globals.
FreeGlobals(pG);
// Tell the progress dialog that we are done.
SendMessage(g_hDlgProgress, WM_PRIVATE, MSG_OPERATION_COMPLETE,
(LPARAM)g_pExtractInfo);
// Clear our global pointer as we are done with it.
g_pExtractInfo = NULL;
#ifndef _WIN32_WCE
// On NT, we need to free any CRT allocated memory.
_endthreadex(0);
#endif
return 0;
}
//******************************************************************************
static void SetCurrentFile(__GPRO)
{
// Reset all our counters as we about to process a new file.
g_pExtractInfo->uzFileOffset = (zusz_t)G.pInfo->offset;
g_pExtractInfo->dwFile++;
g_pExtractInfo->uzBytesWrittenThisFile = 0;
g_pExtractInfo->uzBytesWrittenPreviousFiles += g_pExtractInfo->uzBytesTotalThisFile;
g_pExtractInfo->uzBytesTotalThisFile = G.lrec.ucsize;
g_pExtractInfo->szFile = G.filename;
g_pExtractInfo->fNewLineOfText = TRUE;
// Pass control to our GUI thread to do a full update our progress dialog.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_UPDATE_PROGRESS_COMPLETE,
(LPARAM)g_pExtractInfo);
// Check our abort flag.
}
#endif // POCKET_UNZIP
//******************************************************************************
static int IsFileOrDirectory(LPCTSTR szPath)
{
// Geth the attributes of the item.
DWORD dwAttribs = GetFileAttributes(szPath);
// Bail out now if we could not find the path at all.
if (dwAttribs == 0xFFFFFFFF) {
return 0;
}
// Return 1 for file and 2 for directory.
return ((dwAttribs & FILE_ATTRIBUTE_DIRECTORY) ? 2 : 1);
}
//******************************************************************************
static BOOL SmartCreateDirectory(__GPRO__ LPCSTR szDirectory, BOOL *pNewDir)
{
// Copy path to a UNICODE buffer.
TCHAR szBuffer[_MAX_PATH];
MBSTOTSTR(szBuffer, szDirectory, countof(szBuffer));
switch (IsFileOrDirectory(szBuffer)) {
case 0:
// Create the directory if it does not exist.
if (!CreateDirectory(szBuffer, NULL)) {
Info(slide, 1, ((char *)slide, "error creating directory: %s\n",
FnFilter1( szDirectory)));
return FALSE;
}
if (pNewDir != NULL) *pNewDir = TRUE;
break;
case 1:
// If there is a file with the same name, then display an error.
Info(slide, 1, ((char *)slide,
"cannot create %s as a file with same name already exists.\n",
FnFilter1(szDirectory)));
return FALSE;
}
// If the directory already exists or was created, then return success.
return TRUE;
}
#ifdef POCKET_UNZIP
//******************************************************************************
//***** Callbacks from Info-ZIP code.
//******************************************************************************
int UZ_EXP UzpMessagePrnt2(zvoid *pG, uch *buffer, ulg size, int flag)
{
// Some ZIP files cause us to get called during DoListFiles(). We only handle
// messages while processing DoExtractFiles().
if (!g_pExtractInfo) {
if (g_hWndEdit) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)buffer);
} else {
#ifdef UNICODE
DebugOut(TEXT("Unhandled call to UzpMessagePrnt2(\"%S\")"), buffer);
#else
DebugOut(TEXT("Unhandled call to UzpMessagePrnt2(\"%s\")"), buffer);
#endif
}
return 0;
}
// When extracting, mapname() will get called for every file which in turn
// will call SetCurrentFile(). For testing though, mapname() never gets
// called so we need to be on the lookout for a new file.
if (g_pExtractInfo->uzFileOffset != (zusz_t)((Uz_Globs*)pG)->pInfo->offset) {
SetCurrentFile((Uz_Globs*)pG);
}
// Make sure this message was intended for us to display.
if (!MSG_NO_WGUI(flag) && !MSG_NO_WDLL(flag)) {
// Insert a leading newline if requested to do so.
if (MSG_LNEWLN(flag) && !g_pExtractInfo->fNewLineOfText) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)"\n");
g_pExtractInfo->fNewLineOfText = TRUE;
}
// Since we use a proportional font, we need to do a little cleanup of the
// text we are passed since it assumes a fixed font and adds padding to try
// to line things up. We remove leading whitespace on any new line of text.
if (g_pExtractInfo->fNewLineOfText) {
while (*buffer == ' ') {
buffer++;
}
}
// We always remove trailing whitespace.
LPSTR psz = (LPSTR)buffer;
LPSTR pszn;
while ((pszn = MBSCHR(psz, ' ')) != NULL) {
for (psz = pszn+1; *psz == ' '; psz++);
if (*psz == '\0') {
*pszn = '\0';
break;
}
}
// Determine if the next line of text will be a new line of text.
g_pExtractInfo->fNewLineOfText = ((*psz == '\r') || (*psz == '\n'));
// Change all forward slashes to back slashes in the buffer
ForwardSlashesToBackSlashesA((LPSTR)buffer);
// Add the cleaned-up text to our extraction log edit control.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)buffer);
// Append a trailing newline if requested to do so.
if (MSG_TNEWLN(flag) || MSG_MNEWLN(flag) && !g_pExtractInfo->fNewLineOfText) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)"\n");
g_pExtractInfo->fNewLineOfText = TRUE;
}
}
return 0;
}
//******************************************************************************
int UZ_EXP UzpInput2(zvoid *pG, uch *buffer, int *size, int flag)
{
DebugOut(TEXT("WARNING: UzpInput2(...) called"));
return 0;
}
//******************************************************************************
void UZ_EXP UzpMorePause(zvoid *pG, const char *szPrompt, int flag)
{
DebugOut(TEXT("WARNING: UzpMorePause(...) called"));
}
//******************************************************************************
int UZ_EXP UzpPassword(zvoid *pG, int *pcRetry, char *szPassword, int nSize,
const char *szZipFile, const char *szFile)
{
// Return Values:
// IZ_PW_ENTERED got some PWD string, use/try it
// IZ_PW_CANCEL no password available (for this entry)
// IZ_PW_CANCELALL no password, skip any further PWD request
// IZ_PW_ERROR failure (no mem, no tty, ...)
#if CRYPT
// Build the data structure for our dialog.
DECRYPT_INFO di;
di.retry = *pcRetry;
di.szPassword = szPassword;
di.nSize = nSize;
di.szFile = szFile;
// Clear the password to be safe.
*di.szPassword = '\0';
// On our first call for a file, *pcRetry == 0. If we would like to allow
// for retries, then we set the value of *pcRetry to the number of retries we
// are willing to allow. We will be recalled as neccessary, each time with
// *pcRetry being decremented once. 1 is the last retry we will get.
*pcRetry = (*pcRetry == 0) ? MAX_PASSWORD_RETRIES : (*pcRetry - 1);
// Pass control to our GUI thread which will prompt the user for a password.
return SendMessage(g_hWndMain, WM_PRIVATE, MSG_PROMPT_FOR_PASSWORD, (LPARAM)&di);
#else
return IZ_PW_CANCELALL;
#endif
}
//******************************************************************************
int UZ_EXP CheckForAbort2(zvoid *pG, int fnflag, ZCONST char *zfn,
ZCONST char *efn, ZCONST zvoid *details)
{
int rval = UZ_ST_CONTINUE;
if (g_pExtractInfo->fAbort) {
// Add a newline to our log if we are in the middle of a line of text.
if (!g_pExtractInfo->fNewLineOfText) {
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)"\n");
}
// Make sure whatever file we are currently processing gets closed.
if (((int)((Uz_Globs *)pG)->outfile != 0) &&
((int)((Uz_Globs *)pG)->outfile != -1)) {
if (g_pExtractInfo->fExtract && *efn) {
// Make sure the user is aware that this file is screwed.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)"warning: ");
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)efn);
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)" is probably truncated.\n");
}
}
// Display an aborted message in the log
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT,
(LPARAM)"Operation aborted by user.\n");
// Signal "Immediate Cancel" back to the UnZip engine.
rval = UZ_ST_BREAK;
}
return rval;
}
//******************************************************************************
int WINAPI UzpReplace(LPSTR szFile, unsigned nbufsiz) {
// Pass control to our GUI thread which will prompt the user to overwrite.
// The nbufsiz parameter is not needed here, because this program does not
// (yet?) contain support for renaming the extraction target.
return SendMessage(g_hWndMain, WM_PRIVATE, MSG_PROMPT_TO_REPLACE,
(LPARAM)szFile);
}
//******************************************************************************
void WINAPI UzpSound(void) {
// Do nothing.
}
//******************************************************************************
// Called from LIST.C
#ifdef Z_UINT8_DEFINED
void WINAPI SendAppMsg(z_uint8 uzSize, z_uint8 uzCompressedSize,
#else
void WINAPI SendAppMsg(ulg uzSize, ulg uzCompressedSize,
#endif
unsigned ratio,
unsigned month, unsigned day, unsigned year,
unsigned hour, unsigned minute, char uppercase,
LPCSTR szPath, LPCSTR szMethod, ulg dwCRC,
char chCrypt)
{
// If we are out of memory, then just bail since we will only make things worse.
if (g_fOutOfMemory) {
return;
}
// We get our Globals structure.
GETGLOBALS();
// Allocate a FILE_NODE large enough to hold this file.
int length = strlen(szPath) + strlen(szMethod);
g_pFileLast = (FILE_NODE*)new BYTE[sizeof(FILE_NODE) +
(sizeof(CHAR) * length)];
// Bail out if we failed to allocate the node.
if (!g_pFileLast) {
#ifdef UNICODE
DebugOut(TEXT("Failed to create a FILE_NODE for \"%S\"."), szPath);
#else
DebugOut(TEXT("Failed to create a FILE_NODE for \"%s\"."), szPath);
#endif
g_fOutOfMemory = TRUE;
return;
}
// Fill in our node.
g_pFileLast->uzSize = (zusz_t)uzSize;
g_pFileLast->uzCompressedSize = (zusz_t)uzCompressedSize;
g_pFileLast->dwCRC = dwCRC;
g_pFileLast->szComment = NULL;
g_pFileLast->szType = NULL;
// Fix the year value to contain the real year.
year += 1900;
// Year: 0 - 4095 (12) 1111 1111 1111 0000 0000 0000 0000 0000 (0xFFF00000)
// Month: 1 - 12 ( 4) 0000 0000 0000 1111 0000 0000 0000 0000 (0x000F0000)
// Day: 1 - 31 ( 5) 0000 0000 0000 0000 1111 1000 0000 0000 (0x0000F800)
// Hour: 0 - 23 ( 5) 0000 0000 0000 0000 0000 0111 1100 0000 (0x000007C0)
// Minute: 0 - 59 ( 6) 0000 0000 0000 0000 0000 0000 0011 1111 (0x0000003F)
// Do some bit shifting to make the date and time fit in a DWORD.
g_pFileLast->dwModified = (((DWORD)(year & 0x0FFF) << 20) |
((DWORD)(month & 0x000F) << 16) |
((DWORD)(day & 0x001F) << 11) |
((DWORD)(hour & 0x001F) << 6) |
((DWORD)(minute & 0x003F)));
// We need to get our globals structure to determine our attributes and
// encryption information.
g_pFileLast->dwAttributes = (pG->crec.external_file_attributes & 0xFF);
if (chCrypt == 'E') {
g_pFileLast->dwAttributes |= ZFILE_ATTRIBUTE_ENCRYPTED;
}
// Store the path and method in our string buffer.
strcpy(g_pFileLast->szPathAndMethod, szPath);
strcpy(g_pFileLast->szPathAndMethod + strlen(szPath) + 1, szMethod);
// Pass the file object to our windows code to have it added to our list.
AddFileToListView(g_pFileLast);
}
//******************************************************************************
int win_fprintf(zvoid *pG, FILE *file, unsigned int dwCount, char far *buffer)
{
// win_fprintf() is used within Info-ZIP to write to a file as well as log
// information. If the "file" is a real file handle (not stdout or stderr),
// then we write the data to the file and return.
if ((file != stdout) && (file != stderr)) {
DWORD dwBytesWritten = 0;
#if (defined(_WIN32_WCE) && (_WIN32_WCE < 211))
// On WinCE all FILEs are really HANDLEs. See WINCE.CPP for more info.
WriteFile((HANDLE)file, buffer, dwCount, &dwBytesWritten, NULL);
#else
dwBytesWritten = fwrite(buffer, 1, dwCount, file);
#endif
// Update our bytes written count.
g_pExtractInfo->uzBytesWrittenThisFile += dwBytesWritten;
// Pass control to our GUI thread to do a partial update our progress dialog.
SendMessage(g_hWndMain, WM_PRIVATE, MSG_UPDATE_PROGRESS_PARTIAL,
(LPARAM)g_pExtractInfo);
return dwBytesWritten;
}
// Check to see if we are expecting a extraction progress string
if (g_pExtractInfo) {
// Most of our progress strings come to our UzpMessagePrnt2() callback,
// but we occasionally get one here. We will just forward it to
// UzpMessagePrnt2() as if it never came here.
UzpMessagePrnt2(pG, (uch*)buffer, dwCount, 0);
return dwCount;
}
// Check to see if we are expecting a zip file comment string.
if (g_hWndEdit) {
// Change all forward slashes to back slashes in the buffer
ForwardSlashesToBackSlashesA((LPSTR)buffer);
SendMessage(g_hWndMain, WM_PRIVATE, MSG_ADD_TEXT_TO_EDIT, (LPARAM)buffer);
return dwCount;
}
// Check to see if we are expecting a compressed file comment string.
if (g_pFileLast) {
char *p1, *p2;
// Calcalute the size of the buffer we will need to store this comment.
// We are going to convert all ASC values 0 - 31 (except tab, new line,
// and CR) to ^char.
int size = 1;
for (p1 = buffer; *p1; INCSTR(p1)) {
size += ((*p1 >= 32) || (*p1 == '\t') ||
(*p1 == '\r') || (*p1 == '\n')) ? CLEN(p1) : 2;
}
// Allocate a comment buffer and assign it to the last file node we saw.
if (g_pFileLast->szComment = new CHAR[size]) {
// Copy while formatting.
for (p1 = buffer, p2 = (char*)g_pFileLast->szComment; *p1; INCSTR(p1)) {
if ((*p1 >= 32) || (*p1 == '\t') ||
(*p1 == '\r') || (*p1 == '\n')) {
memcpy(p2, p1, CLEN(p1));
p2 += CLEN(p1);
} else {
*(p2++) = '^';
*(p2++) = 64 + *p1;
}
}
*p2 = '\0';
}
// Update the attributes of the file node to include the comment attribute.
g_pFileLast->dwAttributes |= ZFILE_ATTRIBUTE_COMMENT;
// Clear the file node so we don't try to add another bogus comment to it.
g_pFileLast = NULL;
return dwCount;
}
if (dwCount >= _MAX_PATH) {
buffer[_MAX_PATH] = '\0';
}
#ifdef UNICODE
DebugOut(TEXT("Unhandled call to win_fprintf(\"%S\")"), buffer);
#else
DebugOut(TEXT("Unhandled call to win_fprintf(\"%S\")"), buffer);
#endif
return dwCount;
}
//******************************************************************************
void WINAPI Wiz_NoPrinting(int f) {
// Do nothing.
}
#endif // POCKET_UNZIP
//******************************************************************************
//***** Functions that Info-ZIP expects the port to write and export.
//***** Some of this code was stolen from the WIN32 port and highly modified.
//******************************************************************************
#ifdef NTSD_EAS
#ifndef SFX
//******************************************************************************
// Called from EXTRACT.C
int test_NTSD(__GPRO__ uch *eb, unsigned eb_size) {
// This function is called when an NT security descriptor is found in the
// extra field. We have nothing to do, so we just return success.
return PK_OK;
}
#endif /* !SFX */
#endif /* NTSD_EAS */
static void utimeToFileTime(time_t ut, FILETIME *pft, BOOL fOldFileSystem)
{
// time_t is a 32-bit value for the seconds since January 1, 1970
// FILETIME is a 64-bit value for the number of 100-nanosecond intervals
// since January 1, 1601
// DWORDLONG is a 64-bit unsigned int that we can use to perform large math
// operations.
// time_t has minimum of 1/1/1970. Many file systems, such as FAT, have a
// minimum date of 1/1/1980. If extracting to one of those file systems and
// out time_t is less than 1980, then we make it 1/1/1980.
// (365 days/yr * 10 yrs + 3 leap yr days) * (60 secs * 60 mins * 24 hrs).
if (fOldFileSystem && (ut < 0x12CFF780)) {
ut = 0x12CFF780;
}
#ifndef NO_W32TIMES_IZFIX
// Now for the next fix for old file systems. If we are in Daylight Savings
// Time (DST) and the file is not in DST, then we need subtract off the DST
// bias from the filetime. This is due to a bug in Windows (NT, CE, and 95)
// that causes the DST bias to be added to all file times when the system
// is in DST, even if the file is not in DST. This only effects old file
// systems since they store local times instead of UTC times. Newer file
// systems like NTFS and CEFS store UTC times.
if (fOldFileSystem)
#endif
{
// We use the CRT's localtime() and Win32's LocalTimeToFileTime()
// functions to compute a FILETIME value that always shows the correct
// local time in Windows' file listings. This works because localtime()
// correctly adds the DST bias only if the file time is in DST.
// FileTimeToLocalTime() always adds the DST bias to the time.
// Therefore, if the functions return different results, we know we
// are dealing with a non-DST file during a system DST.
FILETIME lftCRT;
// Get the CRT result - result is a "tm" struct.
struct tm *ptmCRT = localtime(&ut);
// Check if localtime() returned something useful; continue with the
// "NewFileSystem" code in case of an error. This failsafe method
// should give an "almost" correct filetime result.
if (ptmCRT != (struct tm *)NULL) {
// Convert the "tm" struct to a FILETIME.
SYSTEMTIME stCRT;
ZeroMemory(&stCRT, sizeof(stCRT));
if (fOldFileSystem && (ptmCRT->tm_year < 80)) {
stCRT.wYear = 1980;
stCRT.wMonth = 1;
stCRT.wDay = 1;
stCRT.wHour = 0;
stCRT.wMinute = 0;
stCRT.wSecond = 0;
} else {
stCRT.wYear = ptmCRT->tm_year + 1900;
stCRT.wMonth = ptmCRT->tm_mon + 1;
stCRT.wDay = ptmCRT->tm_mday;
stCRT.wHour = ptmCRT->tm_hour;
stCRT.wMinute = ptmCRT->tm_min;
stCRT.wSecond = ptmCRT->tm_sec;
}
SystemTimeToFileTime(&stCRT, &lftCRT);
LocalFileTimeToFileTime(&lftCRT, pft);
// we are finished!
return;
}
}
// For "Modern" file system that stores timestamps in UTC (or as second
// chance in case of localtime() errors) the conversion of time_t into
// 64-bit FILETIME is a simple arithmetic rescaling calculation.
// Compute the FILETIME for the given time_t.
DWORDLONG dwl = ((DWORDLONG)116444736000000000 +
((DWORDLONG)ut * (DWORDLONG)10000000));
// Store the return value.
*pft = *(FILETIME*)&dwl;
}
//******************************************************************************
static int GetFileTimes(__GPRO__ FILETIME *pftCreated,
FILETIME *pftAccessed, FILETIME *pftModified)
{
// We need to check to see if this file system is limited. This includes
// FAT, VFAT, and HPFS. It does not include NTFS and CEFS. The limited
// file systems can not support dates < 1980 and they store file local times
// for files as opposed to UTC times.
BOOL fOldFileSystem = IsOldFileSystem(G.filename);
#ifdef USE_EF_UT_TIME // Always true for WinCE build
#ifdef IZ_CHECK_TZ
if (G.extra_field && G.tz_is_valid) {
#else
if (G.extra_field) {
#endif
// Structure for Unix style actime, modtime, creatime
iztimes z_utime;
// Get any date/time we can. This can return 0 to 3 unix time fields.
unsigned eb_izux_flg = ef_scan_for_izux(G.extra_field,
G.lrec.extra_field_length, 0,
G.lrec.last_mod_dos_datetime,
&z_utime, NULL);
// We require at least a modified time.
if (eb_izux_flg & EB_UT_FL_MTIME) {
// We know we have a modified time, so get it first.
utimeToFileTime(z_utime.mtime, pftModified, fOldFileSystem);
// Get the accessed time if we have one.
if (eb_izux_flg & EB_UT_FL_ATIME) {
utimeToFileTime(z_utime.atime, pftAccessed, fOldFileSystem);
}
// Get the created time if we have one.
if (eb_izux_flg & EB_UT_FL_CTIME) {
utimeToFileTime(z_utime.ctime, pftCreated, fOldFileSystem);
}
// Return our flags.
return (int)eb_izux_flg;
}
}
#endif // USE_EF_UT_TIME
// If all else fails, we can resort to using the DOS date and time data.
time_t ux_modtime = dos_to_unix_time(G.lrec.last_mod_dos_datetime);
utimeToFileTime(ux_modtime, pftModified, fOldFileSystem);
*pftAccessed = *pftModified;
return (EB_UT_FL_MTIME | EB_UT_FL_ATIME);
}
//******************************************************************************
//***** Functions to correct time stamp bugs on old file systems.
//******************************************************************************
//******************************************************************************
// Borrowed/Modified from win32.c
static BOOL IsOldFileSystem(char *szPath) {
#ifdef _WIN32_WCE
char szRoot[10];
// Get the first nine characters of the path.
strncpy(szRoot, szPath, 9);
szRoot[9] = '\0';
// Convert to uppercase to help with compare.
_strupr(szRoot);
// PC Cards are mounted off the root in a directory called "\PC Cards".
// PC Cards are FAT, no CEOS. We need to check if the file is being
// extracted to the PC card.
return !strcmp(szRoot, "\\PC CARD\\");
#else
char szRoot[_MAX_PATH] = "\0\0\0", szFS[64];
// Check to see if our path contains a drive letter.
if (isalpha(szPath[0]) && (szPath[1] == ':') && (szPath[2] == '\\')) {
// If so, then just copy the drive letter, colon, and wack to our root path.
strncpy(szRoot, szPath, 3);
} else {
// Expand the path so we can get a drive letter.
GetFullPathNameA(szPath, sizeof(szRoot), szRoot, NULL);
// Make sure we actually got a drive letter back in our root path buffer..
if (!isalpha(szRoot[0]) || (szRoot[1] != ':') || (szRoot[2] != '\\')) {
// When in doubt, return TRUE.
return TRUE;
}
}
// NULL terminate after the wack to ensure we have just the root path.
szRoot[3] = '\0';
// Get the file system type string.
GetVolumeInformationA(szRoot, NULL, 0, NULL, NULL, NULL, szFS, sizeof(szFS));
// Ensure that the file system type string is uppercase.
_strupr(szFS);
// Return true for (V)FAT and (OS/2) HPFS format.
return !strncmp(szFS, "FAT", 3) ||
!strncmp(szFS, "VFAT", 4) ||
!strncmp(szFS, "HPFS", 4);
#endif // _WIN32_WCE
}
//******************************************************************************
int SetFileSize(FILE *file, zusz_t filesize)
{
#if (defined(_WIN32_WCE) || defined(__RSXNT__))
// For native Windows CE, it is not known whether the API supports
// presetting a file's size.
// RSXNT environment lacks a translation function from C file pointer
// to Win32-API file handle.
// So, simply do nothing.
return 0;
#else /* !(_WIN32_WCE || __RSXNT__) */
/* not yet verified, if that really creates an unfragmented file
rommel@ars.de
*/
HANDLE os_fh;
#ifdef Z_UINT8_DEFINED
LARGE_INTEGER fsbuf;
#endif
/* Win9x supports FAT file system, only; presetting file size does
not help to prevent fragmentation. */
if ((long)GetVersion() < 0) return 0;
/* Win32-API calls require access to the Win32 file handle.
The interface function used to retrieve the Win32 handle for
a file opened by the C rtl is non-standard and may not be
available for every Win32 compiler environment.
(see also win32/win32.c of the Zip distribution)
*/
os_fh = (HANDLE)_get_osfhandle(fileno(file));
/* move file pointer behind the last byte of the expected file size */
#ifdef Z_UINT8_DEFINED
fsbuf.QuadPart = filesize;
if ((SetFilePointer(os_fh, fsbuf.LowPart, &fsbuf.HighPart, FILE_BEGIN)
== 0xFFFFFFFF) && GetLastError() != NO_ERROR)
#else
if (SetFilePointer(os_fh, filesize, 0, FILE_BEGIN) == 0xFFFFFFFF)
#endif
return -1;
/* extend/truncate file to the current position */
if (SetEndOfFile(os_fh) == 0)
return -1;
/* move file position pointer back to the start of the file! */
return (SetFilePointer(os_fh, 0, 0, FILE_BEGIN) == 0xFFFFFFFF) ? -1 : 0;
#endif /* ?(_WIN32_WCE || __RSXNT__) */
} /* end function SetFileSize() */
//******************************************************************************
void close_outfile(__GPRO)
{
HANDLE hFile;
TCHAR szFile[_MAX_PATH];
MBSTOTSTR(szFile, G.filename, countof(szFile));
/* skip restoring time stamps on user's request */
if (uO.D_flag <= 1) {
// Get the 3 time stamps for the file.
FILETIME ftCreated, ftAccessed, ftModified;
int timeFlags = GetFileTimes(__G__ &ftCreated, &ftAccessed, &ftModified);
#if (defined(_WIN32_WCE) && (_WIN32_WCE < 211))
// Cast the outfile to a HANDLE (since that is really what it is), and
// flush the file. We need to flush, because any unsaved data that is
// written to the file during CloseHandle() will step on the work done
// by SetFileTime().
hFile = (HANDLE)G.outfile;
FlushFileBuffers(hFile);
#else
// Close the file and then re-open it using the Win32 CreateFile() call.
// SetFileTime() requires a Win32 file HANDLE created with GENERIC_WRITE
// access.
fclose(G.outfile);
hFile = CreateFile(szFile, GENERIC_WRITE, FILE_SHARE_WRITE, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
#endif
// Set the file's date and time.
if (hFile != INVALID_HANDLE_VALUE) {
// Make sure we retrieved some valid time stamp(s)
if (timeFlags) {
// Set the various date and time fields.
if (!SetFileTime(hFile,
(timeFlags & EB_UT_FL_CTIME) ? &ftCreated : NULL,
(timeFlags & EB_UT_FL_ATIME) ? &ftAccessed : NULL,
(timeFlags & EB_UT_FL_MTIME) ? &ftModified : NULL))
{
DebugOut(TEXT("SetFileTime() failed [%u]"), GetLastError());
}
} else {
DebugOut(TEXT("GetFileTimes() failed"));
}
// Close out file.
CloseHandle(hFile);
} else {
DebugOut(TEXT("CreateFile() failed [%u]"), GetLastError());
}
}
// If the file was successfully written, then set the attributes.
#ifdef POCKET_UNZIP
if (!G.disk_full && !g_pExtractInfo->fAbort) {
#else
if (!G.disk_full) {
#endif
if (!SetFileAttributes(szFile, G.pInfo->file_attr & 0x7F)) {
DebugOut(TEXT("SetFileAttributes() failed [%u]"), GetLastError());
}
}
// Clear outfile so we know it is closed.
G.outfile = 0;
return;
}
//******************************************************************************
// Called by PROCESS.C
char* do_wild(__GPRO__ ZCONST char *wildspec)
{
// This is a very slimmed down version of do_wild() taken from WIN32.C.
// Since we don't support wildcards, we basically just return the wildspec
// passed in as the filename.
#ifndef POCKET_UNZIP
// Delete allocated storage for the match name
if (G.matchname != NULL)
{
delete G.matchname;
G.matchname = NULL;
}
#endif
// First call - must initialize everything.
if (!G.notfirstcall) {
G.notfirstcall = TRUE;
#ifdef POCKET_UNZIP
return strcpy(G.matchname, wildspec);
#else
// allocate some storage for the match name
G.matchname = new char[strlen(wildspec) + 1];
if (G.matchname != NULL)
return strcpy(G.matchname, wildspec);
#endif
}
// Last time through - reset for new wildspec.
G.notfirstcall = FALSE;
return (char *)NULL;
}
//******************************************************************************
// Called from EXTRACT.C
int mapattr(__GPRO)
{
#ifdef POCKET_UNZIP
// Check to see if we are extracting this file for viewing. Currently, we do
// this by checking the szMappedPath member of our extract info stucture
// since we know OnActionView() is the only one who sets this member.
if (g_pExtractInfo && g_pExtractInfo->szMappedPath) {
// If we are extracting for view only, then we ignore the file's real
// attributes and force the file to create as read-only. We make the file
// read-only to help prevent the user from making changes to the temporary
// file and then trying to save the changes back to a file that we will
// eventually delete.
G.pInfo->file_attr = FILE_ATTRIBUTE_READONLY;
} else
#endif
{
/* set archive bit for file entries (file is not backed up): */
G.pInfo->file_attr = ((unsigned)G.crec.external_file_attributes |
(G.crec.external_file_attributes & FILE_ATTRIBUTE_DIRECTORY ?
0 : FILE_ATTRIBUTE_ARCHIVE)) & 0xff;
}
return 0;
} /* end function mapattr() */
//******************************************************************************
// Called from EXTRACT.C
//
// returns:
// MPN_OK - no problem detected
// MPN_INF_TRUNC - (on APPEND_NAME) truncated filename
// MPN_INF_SKIP - path doesn't exist, not allowed to create
// MPN_ERR_SKIP - path doesn't exist, tried to create and failed; or path
// exists and is not a directory, but is supposed to be
// MPN_ERR_TOOLONG - path is too long
// MPN_NOMEM - can't allocate memory for filename buffers
//
// MPN_VOL_LABEL - Path was a volume label, skip it.
// MPN_CREATED_DIR - Created a directory.
//
int mapname(__GPRO__ int renamed)
{
int error = MPN_OK;
CHAR szBuffer[countof(G.filename)] = "";
CHAR *pIn = NULL, *pOut, *pLastSemi = NULL;
CHAR *pPathComp, workch;
BOOL killed_ddot = FALSE, renamed_fullpath = FALSE, created_dir = FALSE;
#ifdef POCKET_UNZIP
// mapname() is a great place to reset all our status counters for the next
// file to be processed since it is called for every zip file member before
// any work is done with that member.
SetCurrentFile(__G);
#endif
// If Volume Label, skip the "extraction" quietly
if (G.pInfo->vollabel) {
return MPN_VOL_LABEL;
}
#ifndef POCKET_UNZIP // The GUI interface does not support renaming...
if (renamed) {
pIn = G.filename; // point to beginning of renamed name...
if (*pIn) do {
if (*pIn == '\\') // convert backslashes to forward
*pIn = '/';
} while (*PREINCSTR(pIn));
pIn = G.filename;
// use temporary rootpath if user gave full pathname
if (G.filename[0] == '/') {
renamed_fullpath = TRUE;
szBuffer[0] = '\\'; // copy the '/' and terminate
szBuffer[1] = '\0';
++pIn;
} else if (isalpha((uch)G.filename[0]) && G.filename[1] == ':') {
renamed_fullpath = TRUE;
pOut = szBuffer;
*pOut++ = *pIn++; // copy the "d:" (+ '/', possibly)
*pOut++ = *pIn++;
if (*pIn == '/') {
*pOut++ = '\\';
pIn++; // otherwise add "./"?
}
*pOut = '\0';
}
}
#endif
// Initialize file path buffer with our "extract to" path.
if (!renamed_fullpath) {
#ifdef POCKET_UNZIP
strcpy(szBuffer, g_szExtractToDirectory);
#else
strcpy(szBuffer, G.rootpath);
#endif
pOut = szBuffer + strlen(szBuffer);
}
pPathComp = pOut;
if (!renamed) {
// Point pIn to beginning of our internal pathname.
// If we are junking paths, then locate the file portion of the path.
if (uO.jflag)
pIn = (CHAR*)MBSRCHR(G.filename, '/');
if (pIn == NULL)
pIn = G.filename;
else
++pIn;
}
// Begin main loop through characters in filename.
for ( ; (workch = *pIn) != '\0'; INCSTR(pIn)) {
// Make sure we don't overflow our output buffer.
if (pOut >= (szBuffer + countof(szBuffer) - 2)) {
Info(slide, 1, ((char*)slide, "path too long: %s\n",
FnFilter1(G.filename)));
return MPN_ERR_TOOLONG;
}
// Examine the next character in our input buffer.
switch (workch) {
// Check for a directory wack.
case '/':
*pOut = '\0';
// Skip dir traversals unless they are explicitly allowed.
if (strcmp(pPathComp, ".") == 0) {
// don't bother appending "./" to the path
*pPathComp = '\0';
} else if (!uO.ddotflag && strcmp(pPathComp, "..") == 0) {
// "../" dir traversal detected, skip over it
*pPathComp = '\0';
killed_ddot = TRUE; // set "show message" flag
}
// When path component is not empty, append it now.
if (*pPathComp == '\0') {
// Reset insert pos to start of path component.
pOut = pPathComp;
} else {
if (!SmartCreateDirectory(__G__ szBuffer, &created_dir)) {
Info(slide, 1, ((char*)slide, "failure extracting: %s\n",
FnFilter1(G.filename)));
return MPN_ERR_SKIP;
}
*(pOut++) = '\\';
pPathComp = pOut; // Remember start pos of new path component
}
pLastSemi = NULL; // Leave any directory semi-colons alone
break;
// Check for illegal characters and replace with underscore.
case ':':
case '\\':
case '*':
case '?':
case '"':
case '<':
case '>':
case '|':
*(pOut++) = '_';
break;
// Check for start of VMS version.
case ';':
pLastSemi = pOut; // Make note as to where we are.
*(pOut++) = ';'; // Leave the semi-colon alone for now.
break;
default:
// Allow European characters and spaces in filenames.
#ifdef _MBCS
if ((UCHAR)workch >= 0x20) {
memcpy(pOut, pIn, CLEN(pIn));
INCSTR(pOut);
} else {
*(pOut++) = '_';
}
#else
*(pOut++) = (((UCHAR)workch >= 0x20) ? workch : '_');
#endif
}
}
// Show warning when stripping insecure "parent dir" path components
if (killed_ddot && QCOND2) {
Info(slide, 0, ((char *)slide,
"warning: skipped \"../\" path component(s) in %s\n",
FnFilter1(G.filename)));
if (!(error & ~MPN_MASK))
error = (error & MPN_MASK) | PK_WARN;
}
// Done with output buffer, terminate it.
*pOut = '\0';
// Remove any VMS version numbers if found (appended ";###").
if (pLastSemi) {
// Walk over all digits following the semi-colon.
for (pOut = pLastSemi + 1; (*pOut >= '0') && (*pOut <= '9'); pOut++);
// If we reached the end, then nuke the semi-colon and digits.
if (!*pOut)
*pLastSemi = '\0';
}
// Copy the mapped name back to the internal path buffer
strcpy(G.filename, szBuffer);
#ifdef POCKET_UNZIP
// Fill in the mapped name buffer if the original caller requested us to.
if (g_pExtractInfo->szMappedPath) {
strcpy(g_pExtractInfo->szMappedPath, szBuffer);
}
#endif
// If it is a directory, then display the "creating" status text.
if ((pOut > szBuffer) && (lastchar(szBuffer, pOut-szBuffer) == '\\')) {
if (created_dir) {
#ifdef UNICODE
TCHAR szFile[_MAX_PATH];
MBSTOTSTR(szFile, G.filename, countof(szFile));
# define T_Fname szFile
#else
# define T_Fname G.filename
#endif
if (QCOND2) {
Info(slide, 0, ((char *)slide, " creating: %-22s\n",
FnFilter1(G.filename)));
}
// set file attributes:
// The default for newly created directories is "DIR attribute
// flags set", so there is no need to change attributes unless
// one of the DOS style attribute flags is set. There is no need
// to mask the readonly attribute, because it does not prevent
// modifications in the new directory.
if(G.pInfo->file_attr & (0x7F & ~FILE_ATTRIBUTE_DIRECTORY)) {
if (!SetFileAttributes(T_Fname, G.pInfo->file_attr & 0x7F))
Info(slide, 1, ((char *)slide,
"\nwarning (%d): could not set file attributes for %s\n",
(int)GetLastError(), FnFilter1(G.filename)));
}
/* set dir time (note trailing '/') */
return (error & ~MPN_MASK) | MPN_CREATED_DIR;
}
/* dir existed already; don't look for data to extract */
return (error & ~MPN_MASK) | MPN_INF_SKIP;
}
return error;
}
//******************************************************************************
// Called from PROCESS.C
int checkdir(__GPRO__ char *pathcomp, int flag) {
#ifdef POCKET_UNZIP
// This function is only called by free_G_buffers() from PROCESS.C with the
// flag set to END. We have nothing to do, so we just return success.
return MPN_OK;
#else // !POCKET_UNZIP
# define FN_MASK 7
# define FUNCTION (flag & FN_MASK)
int rc = MPN_OK;
switch (FUNCTION) {
case ROOT:
{
// User specified a root path. save the root without separator
char* pathcompStart;
if (pathcomp == NULL) {
G.rootlen = 0; // trivial NULL clause...
break;
}
if (G.rootlen > 0)
break; // nothing to do, rootpath was already set
G.rootlen = strlen(pathcomp);
pathcompStart = pathcomp;
// Strip the drive if given. CE does not support Drive
if (pathcomp[1] == ':') {
G.rootlen -= 2;
pathcompStart += 2;
}
// Check for trailing separator, Strip if given
// accomodate it if required.
if (pathcomp[G.rootlen - 1] == '/' || pathcomp[G.rootlen - 1] == '\\')
G.rootlen--;
// Save the root
memcpy(G.rootpath, pathcompStart, G.rootlen);
G.rootpath[G.rootlen] = '\0';
// Check if directory exists and try to create when neccessary.
if (!SmartCreateDirectory(__G__ G.rootpath, NULL)) {
rc = MPN_ERR_SKIP; // Create directory failed
}
// Add trailing path separator
G.rootpath[G.rootlen++] = '\\';
G.rootpath[G.rootlen] = '\0';
break;
}
case END:
Trace((stderr, "freeing rootpath\n"));
if (G.rootlen > 0) {
G.rootlen = 0;
G.rootpath[0] = '\0';
}
break;
default:
rc = MPN_INVALID; /* should never reach */
break;
}
return rc;
#endif // !POCKET_UNZIP
} /* end function checkdir() */
#ifdef POCKET_UNZIP
//******************************************************************************
// Called from EXTRACT.C and LIST.C
int match(ZCONST char *string, ZCONST char *pattern, int ignore_case __WDLPRO)
{
// match() for the other ports compares a file in the Zip file with some
// command line file pattern. In our case, we always pass in exact matches,
// so we can simply do a string compare to see if we have a match.
return (strcmp(string, pattern) == 0);
}
//******************************************************************************
// Called from PROCESS.C
int iswild(ZCONST char *pattern) {
// Our file patterns never contain wild characters. They are always exact
// matches of file names in our Zip file.
return FALSE;
}
#else // !POCKET_UNZIP
/************************/
/* Function version() */
/************************/
void version(__GPRO)
{
// Dummy function, does nothing.
}
#ifndef WINDLL
/* Console input not supported on CE so just return -1 */
int getch_win32(void)
{
return -1;
}
#endif /* !WINDLL */
#endif // !POCKET_UNZIP
#if (defined(UNICODE_SUPPORT))
/* convert wide character string to multi-byte character string */
char *wide_to_local_string(ZCONST zwchar *wide_string,
int escape_all)
{
int i;
wchar_t wc;
int bytes_char;
int default_used;
int wsize = 0;
int max_bytes = 9;
char buf[9];
char *buffer = NULL;
char *local_string = NULL;
for (wsize = 0; wide_string[wsize]; wsize++) ;
if (max_bytes < MB_CUR_MAX)
max_bytes = MB_CUR_MAX;
if ((buffer = (char *)malloc(wsize * max_bytes + 1)) == NULL) {
return NULL;
}
/* convert it */
buffer[0] = '\0';
for (i = 0; i < wsize; i++) {
if (sizeof(wchar_t) < 4 && wide_string[i] > 0xFFFF) {
/* wchar_t probably 2 bytes */
/* could do surrogates if state_dependent and wctomb can do */
wc = zwchar_to_wchar_t_default_char;
} else {
wc = (wchar_t)wide_string[i];
}
/* The C-RTL under WinCE does not support the generic C-style
* Wide-to-MultiByte conversion functions (like wctomb() et. al.).
* Therefore, we have to fall back to the underlying WinCE-API call to
* get WCHAR-to-ANSI translation done.
*/
bytes_char = WideCharToMultiByte(
CP_ACP, WC_COMPOSITECHECK,
&wc, 1,
(LPSTR)buf, sizeof(buf),
NULL, &default_used);
if (default_used)
bytes_char = -1;
if (escape_all) {
if (bytes_char == 1 && (uch)buf[0] <= 0x7f) {
/* ASCII */
strncat(buffer, buf, 1);
} else {
/* use escape for wide character */
char *escape_string = wide_to_escape_string(wide_string[i]);
strcat(buffer, escape_string);
free(escape_string);
}
} else if (bytes_char > 0) {
/* multi-byte char */
strncat(buffer, buf, bytes_char);
} else {
/* no MB for this wide */
/* use escape for wide character */
char *escape_string = wide_to_escape_string(wide_string[i]);
strcat(buffer, escape_string);
free(escape_string);
}
}
if ((local_string = (char *)realloc(buffer, strlen(buffer) + 1)) == NULL) {
free(buffer);
return NULL;
}
return local_string;
}
#endif /* UNICODE_SUPPORT */
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