macunzip.c

完整的解压zip文件的源码。包含密码功能

/*---------------------------------------------------------------------------

  macunzip.c

  Main-function for use with the standalone Unzip App.

  ---------------------------------------------------------------------------*/



/*****************************************************************************/
/*  Includes                                                                 */
/*****************************************************************************/

#define UNZIP_INTERNAL
#include "unzip.h"
#include "version.h"
#include "pathname.h"
#include "helpers.h"

#include <Traps.h>


/*****************************************************************************/
/*  Macros, typedefs                                                         */
/*****************************************************************************/

#define aboutAlert      128

#define selectDialog    129
#define okItem          1
#define cancelItem      2
#define editItem        3
#define staticItem      4

#define unzipMenuBar    128

#define appleMenu       128
#define aboutItem       1

#define fileMenu        129
#define extractItem     1
#define infoItem        2
#define listItem        3
#define testItem        4
#define commentItem     6
#define freshenItem     8
#define updateItem      9
#define quitItem        11

#define editMenu        130
#define cutItem         1
#define copyItem        2
#define pasteItem       3

#define modifierMenu    131
#define excludeItem     1
#define selectItem      2
#define quietItem       9
#define verboseItem     10

#define screenMenu      132
#define pauseItem       1
#define scrollItem      2

#define extractMenu     133
#define screenItem      3
#define junkItem        5

#define caseMenu        134
#define insensitiveItem 1
#define lowercaseItem   2

#define convertMenu     135
#define autoItem        1
#define binaryItem      2
#define textItem        3

#define overwriteMenu   136
#define alwaysItem      1
#define neverItem       2
#define promptItem      3

#define infoMenu        137
#define prtCommentItem  2
#define prtHeaderItem   3
#define prtTotalsItem   4

#define formatMenu      138
#define filenameItem    1
#define longItem        2
#define mediumItem      3
#define shortItem       4

#define allFlags        0x000FFFFF

#define quietFlag       0x00000001
#define verboseFlag     0x00000002

#define pauseFlag       0x00080000
#define scrollFlag      0x00040000

#define screenFlag      0x00000004
#define junkFlag        0x00000008

#define insensitiveFlag 0x00000010
#define lowercaseFlag   0x00000020

#define autoFlag        0x00000040
#define textFlag        0x00000080

#define neverFlag       0x00000100
#define overwriteFlag   0x00000200

#define prtCommentFlag  0x00000400
#define prtHeaderFlag   0x00000800
#define prtTotalsFlag   0x00001000

#define filenameFlag    0x00002000
#define longFlag        0x00004000
#define mediumFlag      0x00008000
#define shortFlag       0x00010000

#define extractMask     0x000003FD
#define infoMask        0x0001FE02
#define listMask        0x00000001
#define testMask        0x00000001
#define commentMask     0x00000000
#define freshenMask     0x000003FD
#define updateMask      0x000003FD


/*****************************************************************************/
/*  Global Vars                                                              */
/*****************************************************************************/

char UnzipVersion[32], ZipinfoVersion[32];

long modifiers, modifierMask;

EventRecord myevent;
MenuHandle appleHandle, modifierHandle, screenHandle, extractHandle;
MenuHandle caseHandle, convertHandle, overwriteHandle, infoHandle;
MenuHandle formatHandle;
Handle menubar, itemHandle;
short itemType;
Rect itemRect;

char command;
extern char fileList[256];

Boolean stop;

SysEnvRec sysRec;


/*****************************************************************************/
/*  Prototypes                                                               */
/*****************************************************************************/

static void domousedown(EventRecord *myevent);



/*****************************************************************************/
/*  Functions                                                                */
/*****************************************************************************/

static Boolean TrapAvailable(machineType, trapNumber, trapType)
short machineType;
short trapNumber;
TrapType trapType;
{
    if (machineType < 0)
        return (false);

    if ((trapType == ToolTrap) &&
        (machineType > envMachUnknown) &&
        (machineType < envMacII)) {
        if ((trapNumber &= 0x03FF) > 0x01FF)
            trapNumber = _Unimplemented;
    }
    return (NGetTrapAddress(trapNumber, trapType) !=
#ifdef __MWERKS__
        NGetTrapAddress(_Unimplemented, trapType));
#else
        GetTrapAddress(_Unimplemented));
#endif
}



/*
** excute menu-command
**
*/

static void domenu(menucommand) long menucommand;
{
    short themenu, theitem;
    DialogPtr thedialog;
    Str255 name;
    long check;

    themenu = HiWord(menucommand);
    theitem = LoWord(menucommand);

    switch (themenu) {

    case appleMenu:
        if (theitem == aboutItem) {
            ParamText((StringPtr)UnzipVersion, (StringPtr)ZipinfoVersion, nil, nil);
            Alert(aboutAlert, nil);
        } else {
            GetMenuItemText(appleHandle, theitem, name);
            theitem = OpenDeskAcc(name);
        }
        break;

    case fileMenu:
        switch (theitem) {
        case extractItem:
            if (modifiers & screenFlag)
                command = 'c';
            else
                command = 'x';
            modifierMask = extractMask;
            break;
        case infoItem:
            command = 'Z';
            modifierMask = infoMask;
            break;
        case listItem:
            if (modifiers & verboseFlag)
                command = 'v';
            else
                command = 'l';
            modifierMask = listMask;
            break;
        case testItem:
            command = 't';
            modifierMask = testMask;
            break;
        case commentItem:
            command = 'z';
            modifierMask = commentMask;
            break;
        case freshenItem:
            command = 'f';
            modifierMask = freshenMask;
            break;
        case updateItem:
            command = 'u';
            modifierMask = updateMask;
            break;
        case quitItem:
            stop = true;
            break;
        default:
            break;
        }
        break;

    case editMenu:
        break;

    case modifierMenu:
        switch (theitem) {
        case excludeItem:
            check = -1;
            break;
        case selectItem:
            thedialog = GetNewDialog(selectDialog, nil, (WindowPtr)(-1));
            SetPort(thedialog);
            do
                ModalDialog(nil, &theitem);
            while ((theitem != okItem) && (theitem != cancelItem));
            if (theitem == okItem) {
                GetDialogItem(thedialog, editItem, &itemType, &itemHandle,
                              &itemRect);
                GetDialogItemText(itemHandle, (StringPtr)&fileList);
                p2cstr((StringPtr)fileList);
            }
            DisposeDialog(thedialog);
            check = -1;
            break;
        case quietItem:
            check = (modifiers ^= quietFlag) & quietFlag;
            break;
        case verboseItem:
            check = (modifiers ^= verboseFlag) & verboseFlag;
            break;
        default:
            break;
        }
        if (check == 0)
            CheckItem(modifierHandle, theitem, false);
        else if (check > 0)
            CheckItem(modifierHandle, theitem, true);
        break;

    case screenMenu:
        switch (theitem) {
        case pauseItem:
            check = (modifiers ^= pauseFlag) & pauseFlag;
            screenControl("p", check);
            break;
        case scrollItem:
            check = (modifiers ^= scrollFlag) & scrollFlag;
            screenControl("s", check);
            break;
        default:
            break;
        }
        if (check == 0)
            CheckItem(screenHandle, theitem, false);
        else if (check > 0)
            CheckItem(screenHandle, theitem, true);
        break;

    case extractMenu:
        switch (theitem) {
        case screenItem:
            check = (modifiers ^= screenFlag) & screenFlag;
            break;
        case junkItem:
            check = (modifiers ^= junkFlag) & junkFlag;
            break;
        default:
            break;
        }
        if (check == 0)
            CheckItem(extractHandle, theitem, false);
        else if (check > 0)
            CheckItem(extractHandle, theitem, true);
        break;

    case caseMenu:
        switch (theitem) {
        case insensitiveItem:
            check = (modifiers ^= insensitiveFlag) & insensitiveFlag;
            break;
        case lowercaseItem:
            check = (modifiers ^= lowercaseFlag) & lowercaseFlag;
            break;
        default:
            break;
        }
        if (check == 0)
            CheckItem(caseHandle, theitem, false);
        else if (check > 0)
            CheckItem(caseHandle, theitem, true);
        break;

    case convertMenu:
        switch (theitem) {
        case autoItem:
            CheckItem(convertHandle, autoItem, true);
            CheckItem(convertHandle, binaryItem, false);
            CheckItem(convertHandle, textItem, false);
            modifiers &= (allFlags ^ textFlag);
            modifiers |= autoFlag;
            break;
        case binaryItem:
            CheckItem(convertHandle, autoItem, false);
            CheckItem(convertHandle, binaryItem, true);
            CheckItem(convertHandle, textItem, false);
            modifiers &= (allFlags ^ (autoFlag | textFlag));
            break;
        case textItem:
            CheckItem(convertHandle, autoItem, false);
            CheckItem(convertHandle, binaryItem, false);
            CheckItem(convertHandle, textItem, true);
            modifiers &= (allFlags ^ autoFlag);
            modifiers |= textFlag;
            break;
        default:
            break;
        }
        break;

    case overwriteMenu:
        switch (theitem) {
        case alwaysItem:
            CheckItem(overwriteHandle, alwaysItem, true);
            CheckItem(overwriteHandle, neverItem, false);
            CheckItem(overwriteHandle, promptItem, false);
            modifiers &= (allFlags ^ neverFlag);
            modifiers |= overwriteFlag;
            break;
        case neverItem:
            CheckItem(overwriteHandle, alwaysItem, false);
            CheckItem(overwriteHandle, neverItem, true);
            CheckItem(overwriteHandle, promptItem, false);
            modifiers &= (allFlags ^ overwriteFlag);
            modifiers |= neverFlag;
            break;
        case promptItem:
            CheckItem(overwriteHandle, alwaysItem, false);
            CheckItem(overwriteHandle, neverItem, false);
            CheckItem(overwriteHandle, promptItem, true);
            modifiers &= (allFlags ^ (neverFlag | overwriteFlag));
            break;
        default:
            break;
        }
        break;

    case infoMenu:
        switch (theitem) {
        case prtCommentItem:
            check = (modifiers ^= prtCommentFlag) & prtCommentFlag;
            break;
        case prtHeaderItem:
            check = (modifiers ^= prtHeaderFlag) & prtHeaderFlag;
            break;
        case prtTotalsItem:
            check = (modifiers ^= prtTotalsFlag) & prtTotalsFlag;
            break;
        default:
            break;
        }