/
zfile_archive.cpp
2206 lines (2009 loc) · 52.1 KB
/
zfile_archive.cpp
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/*
* UAE - The Un*x Amiga Emulator
*
* transparent archive handling
*
* 2007 Toni Wilen
*/
#include "sysconfig.h"
#include "sysdeps.h"
#ifdef _WIN32
#include <windows.h>
#include "win32.h"
#endif
#include "options.h"
#include "zfile.h"
#include "archivers/zip/unzip.h"
#include "archivers/dms/pfile.h"
#include "crc32.h"
#include "zarchive.h"
#include "disk.h"
#include <zlib.h>
#define unpack_log write_log
#undef unpack_log
#define unpack_log(fmt, ...)
static time_t fromdostime (uae_u32 dd)
{
struct tm tm;
time_t t;
memset (&tm, 0, sizeof tm);
tm.tm_hour = (dd >> 11) & 0x1f;
tm.tm_min = (dd >> 5) & 0x3f;
tm.tm_sec = ((dd >> 0) & 0x1f) * 2;
tm.tm_year = ((dd >> 25) & 0x7f) + 80;
tm.tm_mon = ((dd >> 21) & 0x0f) - 1;
tm.tm_mday = (dd >> 16) & 0x1f;
t = mktime (&tm);
t -= _timezone;
return t;
}
static struct zvolume *getzvolume (struct znode *parent, struct zfile *zf, unsigned int id)
{
struct zvolume *zv = NULL;
switch (id)
{
#ifdef A_ZIP
case ArchiveFormatZIP:
zv = archive_directory_zip (zf);
break;
#endif
#ifdef A_7Z
case ArchiveFormat7Zip:
zv = archive_directory_7z (zf);
break;
#endif
#ifdef A_RAR
case ArchiveFormatRAR:
zv = archive_directory_rar (zf);
break;
#endif
#ifdef A_LHA
case ArchiveFormatLHA:
zv = archive_directory_lha (zf);
break;
#endif
#ifdef A_LZX
case ArchiveFormatLZX:
zv = archive_directory_lzx (zf);
break;
#endif
case ArchiveFormatPLAIN:
zv = archive_directory_plain (zf);
break;
case ArchiveFormatADF:
zv = archive_directory_adf (parent, zf);
break;
case ArchiveFormatRDB:
zv = archive_directory_rdb (zf);
break;
case ArchiveFormatTAR:
zv = archive_directory_tar (zf);
break;
case ArchiveFormatFAT:
zv = archive_directory_fat (zf);
break;
}
#ifdef ARCHIVEACCESS
if (!zv)
zv = archive_directory_arcacc (zf, id);
#endif
return zv;
}
struct zfile *archive_access_select (struct znode *parent, struct zfile *zf, unsigned int id, int dodefault, int *retcode, int index)
{
struct zvolume *zv;
struct znode *zn;
int zipcnt, first, select;
TCHAR tmphist[MAX_DPATH];
struct zfile *z = NULL;
int we_have_file;
int diskimg;
int mask = zf->zfdmask;
int canhistory = (mask & ZFD_DISKHISTORY) && !(mask & ZFD_CHECKONLY);
int getflag = (mask & ZFD_DELAYEDOPEN) ? FILE_DELAYEDOPEN : 0;
int execnt = 0;
if (retcode)
*retcode = 0;
if (index > 0)
return NULL;
if (zfile_needwrite (zf)) {
if (retcode)
*retcode = -1;
return NULL;
}
zv = getzvolume (parent, zf, id);
if (!zv)
return NULL;
retry:;
we_have_file = 0;
tmphist[0] = 0;
zipcnt = 1;
first = 1;
zn = &zv->root;
while (zn) {
int isok = 1;
diskimg = -1;
if (zn->type != ZNODE_FILE)
isok = 0;
if (zfile_is_ignore_ext (zn->fullname))
isok = 0;
diskimg = zfile_is_diskimage (zn->fullname);
if (isok) {
if (tmphist[0]) {
#ifndef _CONSOLE
if (diskimg >= 0 && canhistory)
DISK_history_add (tmphist, -1, diskimg, 0);
#endif
tmphist[0] = 0;
first = 0;
}
if (first) {
if (diskimg >= 0)
_tcscpy (tmphist, zn->fullname);
} else {
_tcscpy (tmphist, zn->fullname);
#ifndef _CONSOLE
if (diskimg >= 0 && canhistory)
DISK_history_add (tmphist, -1, diskimg, 0);
#endif
tmphist[0] = 0;
}
select = 0;
if (!zf->zipname)
select = 1;
if (zf->zipname && _tcslen (zn->fullname) >= _tcslen (zf->zipname) && !strcasecmp (zf->zipname, zn->fullname + _tcslen (zn->fullname) - _tcslen (zf->zipname)))
select = -1;
if (zf->zipname && zf->zipname[0] == '#' && _tstol (zf->zipname + 1) == zipcnt)
select = -1;
if (select && we_have_file < 10) {
struct zfile *zt = NULL;
const TCHAR *ext = zfile_get_ext(zn->fullname);
int whf = 1;
int ft = 0;
if (mask & ZFD_CD) {
if (ext && !_tcsicmp (ext, _T(".iso"))) {
whf = 2;
ft = ZFILE_CDIMAGE;
}
if (ext && !_tcsicmp (ext, _T(".chd"))) {
whf = 2;
ft = ZFILE_CDIMAGE;
}
if (ext && !_tcsicmp (ext, _T(".ccd"))) {
whf = 9;
ft = ZFILE_CDIMAGE;
}
if (ext && !_tcsicmp (ext, _T(".cue"))) {
whf = 10;
ft = ZFILE_CDIMAGE;
}
} else {
zt = archive_getzfile(zn, id, getflag);
ft = zfile_gettype(zt);
// if more than 1 exe: do not mount as disk image
if (ft == ZFILE_EXECUTABLE) {
if (execnt < 0) {
ft = ZFILE_UNKNOWN;
zfile_fclose(z);
z = NULL;
zfile_fclose(zt);
zt = NULL;
} else {
if (execnt > 0) {
execnt = -1;
goto retry;
}
execnt++;
}
}
}
if ((select < 0 || ft) && whf > we_have_file) {
if (!zt)
zt = archive_getzfile (zn, id, getflag);
we_have_file = whf;
if (z)
zfile_fclose (z);
z = zt;
zt = NULL;
}
zfile_fclose (zt);
}
}
zipcnt++;
zn = zn->next;
}
#ifndef _CONSOLE
diskimg = zfile_is_diskimage (zfile_getname (zf));
if (diskimg >= 0 && first && tmphist[0] && canhistory)
DISK_history_add (zfile_getname (zf), -1, diskimg, 0);
#endif
zfile_fclose_archive (zv);
if (z) {
zfile_fclose (zf);
zf = z;
} else if (!dodefault && zf->zipname && zf->zipname[0]) {
if (retcode)
*retcode = -1;
zf = NULL;
} else {
zf = NULL;
}
return zf;
}
struct zfile *archive_access_arcacc_select (struct zfile *zf, unsigned int id, int *retcode)
{
if (zfile_needwrite (zf)) {
if (retcode)
*retcode = -1;
return NULL;
}
return zf;
}
void archive_access_scan (struct zfile *zf, zfile_callback zc, void *user, unsigned int id)
{
struct zvolume *zv;
struct znode *zn;
zv = getzvolume (NULL, zf, id);
if (!zv)
return;
zn = &zv->root;
while (zn) {
if (zn->type == ZNODE_FILE) {
struct zfile *zf2 = archive_getzfile (zn, id, 0);
if (zf2) {
int ztype = iszip (zf2);
if (ztype) {
zfile_fclose (zf2);
} else {
int ret = zc (zf2, user);
zfile_fclose (zf2);
if (ret)
break;
}
}
}
zn = zn->next;
}
zfile_fclose_archive (zv);
}
/* TAR */
static void archive_close_tar (void *handle)
{
}
struct zvolume *archive_directory_tar (struct zfile *z)
{
struct zvolume *zv;
struct znode *zn;
_tzset ();
zv = zvolume_alloc (z, ArchiveFormatTAR, NULL, NULL);
for (;;) {
uae_u8 block[512];
char name[MAX_DPATH];
int ustar = 0;
struct zarchive_info zai;
int valid = 1;
uae_u64 size;
if (zfile_fread (block, 512, 1, z) != 1)
break;
if (block[0] == 0)
break;
if (!memcmp (block + 257, "ustar ", 8))
ustar = 1;
name[0] = 0;
if (ustar)
strcpy (name, (char*)block + 345);
strcat (name, (char*)block);
if (name[0] == 0)
valid = 0;
if (block[156] != '0')
valid = 0;
if (ustar && (block[256] != 0 && block[256] != '0'))
valid = 0;
size = _strtoui64 ((char*)block + 124, NULL, 8);
if (valid) {
memset (&zai, 0, sizeof zai);
zai.name = au (name);
zai.size = size;
zai.tv.tv_sec = _strtoui64 ((char*)block + 136, NULL, 8);
zai.tv.tv_sec += _timezone;
if (_daylight)
zai.tv.tv_sec -= 1 * 60 * 60;
if (zai.name[_tcslen (zai.name) - 1] == '/') {
zn = zvolume_adddir_abs (zv, &zai);
} else {
zn = zvolume_addfile_abs (zv, &zai);
if (zn)
zn->offset = zfile_ftell32(z);
}
xfree (zai.name);
}
zfile_fseek (z, (size + 511) & ~511, SEEK_CUR);
}
zv->method = ArchiveFormatTAR;
return zv;
}
struct zfile *archive_access_tar (struct znode *zn)
{
#if 0
struct zfile *zf = zfile_fopen_empty (zn->volume->archive, zn->fullname, zn->size);
zfile_fseek (zn->volume->archive, zn->offset, SEEK_SET);
zfile_fwrite (zf->data, zn->size, 1, zn->volume->archive);
return zf;
#else
return zfile_fopen_parent (zn->volume->archive, zn->fullname, zn->offset, zn->size);
#endif
}
/* ZIP */
#ifdef A_ZIP
static void archive_close_zip (void *handle)
{
}
struct zvolume *archive_directory_zip (struct zfile *z)
{
unzFile uz;
unz_file_info file_info;
struct zvolume *zv;
int err;
uz = unzOpen (z);
if (!uz)
return 0;
if (unzGoToFirstFile (uz) != UNZ_OK)
return 0;
zv = zvolume_alloc (z, ArchiveFormatZIP, NULL, NULL);
for (;;) {
char filename_inzip2[MAX_DPATH];
TCHAR c;
struct zarchive_info zai;
time_t t;
unsigned int dd;
TCHAR *filename_inzip;
err = unzGetCurrentFileInfo (uz, &file_info, filename_inzip2, sizeof (filename_inzip2), NULL, 0, NULL, 0);
if (err != UNZ_OK)
return 0;
if (file_info.flag & (1 << 11)) { // UTF-8 encoded
filename_inzip = utf8u (filename_inzip2);
} else {
filename_inzip = au (filename_inzip2);
}
dd = file_info.dosDate;
t = fromdostime (dd);
memset (&zai, 0, sizeof zai);
zai.name = filename_inzip;
zai.tv.tv_sec = t;
zai.flags = -1;
c = filename_inzip[_tcslen (filename_inzip) - 1];
if (c != '/' && c != '\\') {
int err = unzOpenCurrentFile (uz);
if (err == UNZ_OK) {
struct znode *zn;
zai.size = file_info.uncompressed_size;
zn = zvolume_addfile_abs (zv, &zai);
}
} else {
filename_inzip[_tcslen (filename_inzip) - 1] = 0;
zvolume_adddir_abs (zv, &zai);
}
xfree (filename_inzip);
err = unzGoToNextFile (uz);
if (err != UNZ_OK)
break;
}
unzClose (uz);
zv->method = ArchiveFormatZIP;
return zv;
}
static struct zfile *archive_do_zip (struct znode *zn, struct zfile *z, int flags)
{
unzFile uz;
int i;
TCHAR tmp[MAX_DPATH];
TCHAR *name = z ? z->archiveparent->name : zn->volume->root.fullname;
char *s;
uz = unzOpen (z ? z->archiveparent : zn->volume->archive);
if (!uz)
return 0;
if (z)
_tcscpy (tmp, z->archiveparent->name);
else
_tcscpy (tmp, zn->fullname + _tcslen (zn->volume->root.fullname) + 1);
if (unzGoToFirstFile (uz) != UNZ_OK)
goto error;
for (i = 0; tmp[i]; i++) {
if (tmp[i] == '\\')
tmp[i] = '/';
}
s = ua (tmp);
if (unzLocateFile (uz, s, 1) != UNZ_OK) {
xfree (s);
for (i = 0; tmp[i]; i++) {
if (tmp[i] == '/')
tmp[i] = '\\';
}
s = ua (tmp);
if (unzLocateFile (uz, s, 1) != UNZ_OK) {
xfree (s);
goto error;
}
}
xfree (s);
s = NULL;
if (unzOpenCurrentFile (uz) != UNZ_OK)
goto error;
if (!z)
z = zfile_fopen_empty (NULL, zn->fullname, zn->size);
if (z) {
int err = -1;
if (!(flags & FILE_DELAYEDOPEN) || z->size <= PEEK_BYTES) {
unpack_log (_T("ZIP: unpacking %s, flags=%d\n"), name, flags);
err = unzReadCurrentFile (uz, z->data, (unsigned int)z->datasize);
unpack_log (_T("ZIP: unpacked, code=%d\n"), err);
} else {
z->archiveparent = zfile_dup (zn->volume->archive);
if (z->archiveparent) {
unpack_log (_T("ZIP: delayed open '%s'\n"), name);
xfree (z->archiveparent->name);
z->archiveparent->name = my_strdup (tmp);
z->datasize = PEEK_BYTES;
err = unzReadCurrentFile (uz, z->data, (unsigned int)z->datasize);
unpack_log (_T("ZIP: unpacked, code=%d\n"), err);
} else {
unpack_log (_T("ZIP: unpacking %s (failed DELAYEDOPEN)\n"), name);
err = unzReadCurrentFile (uz, z->data, (unsigned int)z->datasize);
unpack_log (_T("ZIP: unpacked, code=%d\n"), err);
}
}
}
unzCloseCurrentFile (uz);
unzClose (uz);
return z;
error:
unzClose (uz);
return NULL;
}
static struct zfile *archive_access_zip (struct znode *zn, int flags)
{
return archive_do_zip (zn, NULL, flags);
}
static struct zfile *archive_unpack_zip (struct zfile *zf)
{
return archive_do_zip (NULL, zf, 0);
}
#endif
#ifdef A_7Z
/* 7Z */
#include "7z/7z.h"
#include "7z/Alloc.h"
#include "7z/7zFile.h"
#include "7z/7zVersion.h"
#include "7z/7zCrc.h"
static void *SzAlloc (void *p, size_t size)
{
return xmalloc (uae_u8, size);
}
static void SzFree(void *p, void *address)
{
xfree (address);
}
static ISzAlloc allocImp;
static ISzAlloc allocTempImp;
static SRes SzFileReadImp (void *object, void *buffer, size_t *size)
{
CFileInStream *s = (CFileInStream *)object;
struct zfile *zf = (struct zfile*)s->file.myhandle;
*size = zfile_fread (buffer, 1, *size, zf);
return SZ_OK;
}
static SRes SzFileSeekImp(void *object, Int64 *pos, ESzSeek origin)
{
CFileInStream *s = (CFileInStream *)object;
struct zfile *zf = (struct zfile*)s->file.myhandle;
int org = 0;
switch (origin)
{
case SZ_SEEK_SET: org = SEEK_SET; break;
case SZ_SEEK_CUR: org = SEEK_CUR; break;
case SZ_SEEK_END: org = SEEK_END; break;
}
zfile_fseek (zf, *pos, org);
*pos = zfile_ftell (zf);
return SZ_OK;
}
static void init_7z (void)
{
static int initialized;
if (initialized)
return;
initialized = 1;
allocImp.Alloc = SzAlloc;
allocImp.Free = SzFree;
allocTempImp.Alloc = SzAlloc;
allocTempImp.Free = SzFree;
CrcGenerateTable ();
_tzset ();
}
struct SevenZContext
{
CSzArEx db;
CFileInStream archiveStream;
CLookToRead lookStream;
Byte *outBuffer;
size_t outBufferSize;
UInt32 blockIndex;
};
static void archive_close_7z (void *ctx)
{
struct SevenZContext *ctx7 = (struct SevenZContext*)ctx;
SzArEx_Free (&ctx7->db, &allocImp);
allocImp.Free (&allocImp, ctx7->outBuffer);
xfree (ctx);
}
#define EPOCH_DIFF 0x019DB1DED53E8000LL /* 116444736000000000 nsecs */
#define RATE_DIFF 10000000 /* 100 nsecs */
struct zvolume *archive_directory_7z (struct zfile *z)
{
SRes res;
struct zvolume *zv;
int i;
struct SevenZContext *ctx;
init_7z ();
ctx = xcalloc (struct SevenZContext, 1);
ctx->blockIndex = 0xffffffff;
ctx->archiveStream.s.Read = SzFileReadImp;
ctx->archiveStream.s.Seek = SzFileSeekImp;
ctx->archiveStream.file.myhandle = (void*)z;
LookToRead_CreateVTable (&ctx->lookStream, False);
ctx->lookStream.realStream = &ctx->archiveStream.s;
LookToRead_Init (&ctx->lookStream);
SzArEx_Init (&ctx->db);
res = SzArEx_Open (&ctx->db, &ctx->lookStream.s, &allocImp, &allocTempImp);
if (res != SZ_OK) {
write_log (_T("7Z: SzArchiveOpen %s returned %d\n"), zfile_getname (z), res);
xfree (ctx);
return NULL;
}
zv = zvolume_alloc (z, ArchiveFormat7Zip, ctx, NULL);
for (i = 0; i < ctx->db.db.NumFiles; i++) {
CSzFileItem *f = ctx->db.db.Files + i;
TCHAR *name = (TCHAR*)(ctx->db.FileNames.data + ctx->db.FileNameOffsets[i] * 2);
struct zarchive_info zai;
memset(&zai, 0, sizeof zai);
zai.name = name;
zai.flags = f->AttribDefined ? f->Attrib : -1;
zai.size = f->Size;
if (f->MTimeDefined) {
uae_u64 t = (((uae_u64)f->MTime.High) << 32) | f->MTime.Low;
if (t >= EPOCH_DIFF) {
zai.tv.tv_sec = (t - EPOCH_DIFF) / RATE_DIFF;
zai.tv.tv_sec -= _timezone;
if (_daylight)
zai.tv.tv_sec += 1 * 60 * 60;
}
}
if (!f->IsDir) {
struct znode *zn = zvolume_addfile_abs (zv, &zai);
if (zn)
zn->offset = i;
}
}
zv->method = ArchiveFormat7Zip;
return zv;
}
static struct zfile *archive_access_7z (struct znode *zn)
{
SRes res;
struct zvolume *zv = zn->volume;
struct zfile *z = NULL;
size_t offset;
size_t outSizeProcessed;
struct SevenZContext *ctx;
z = zfile_fopen_empty (NULL, zn->fullname, zn->size);
if (!z)
return NULL;
ctx = (struct SevenZContext*)zv->handle;
res = SzArEx_Extract (&ctx->db, &ctx->lookStream.s, zn->offset,
&ctx->blockIndex, &ctx->outBuffer, &ctx->outBufferSize,
&offset, &outSizeProcessed,
&allocImp, &allocTempImp);
if (res == SZ_OK) {
zfile_fwrite (ctx->outBuffer + offset, (size_t)zn->size, 1, z);
} else {
write_log (_T("7Z: SzExtract %s returned %d\n"), zn->fullname, res);
zfile_fclose (z);
z = NULL;
}
return z;
}
#endif
/* RAR */
#ifdef A_RAR
/* copy and paste job? you are only imagining it! */
static struct zfile *rarunpackzf; /* stupid unrar.dll */
#include <unrar.h>
typedef HANDLE (_stdcall* RAROPENARCHIVEEX)(struct RAROpenArchiveDataEx*);
static RAROPENARCHIVEEX pRAROpenArchiveEx;
typedef int (_stdcall* RARREADHEADEREX)(HANDLE,struct RARHeaderDataEx*);
static RARREADHEADEREX pRARReadHeaderEx;
typedef int (_stdcall* RARPROCESSFILE)(HANDLE,int,char*,char*);
static RARPROCESSFILE pRARProcessFile;
typedef int (_stdcall* RARCLOSEARCHIVE)(HANDLE);
static RARCLOSEARCHIVE pRARCloseArchive;
typedef void (_stdcall* RARSETCALLBACK)(HANDLE,UNRARCALLBACK,LONG);
static RARSETCALLBACK pRARSetCallback;
typedef int (_stdcall* RARGETDLLVERSION)(void);
static RARGETDLLVERSION pRARGetDllVersion;
static int canrar (void)
{
static int israr;
if (israr == 0) {
israr = -1;
#ifdef _WIN32
{
HMODULE rarlib;
rarlib = WIN32_LoadLibrary (_T("unrar.dll"));
if (rarlib) {
TCHAR tmp[MAX_DPATH];
tmp[0] = 0;
GetModuleFileName (rarlib, tmp, sizeof tmp / sizeof (TCHAR));
pRAROpenArchiveEx = (RAROPENARCHIVEEX)GetProcAddress (rarlib, "RAROpenArchiveEx");
pRARReadHeaderEx = (RARREADHEADEREX)GetProcAddress (rarlib, "RARReadHeaderEx");
pRARProcessFile = (RARPROCESSFILE)GetProcAddress (rarlib, "RARProcessFile");
pRARCloseArchive = (RARCLOSEARCHIVE)GetProcAddress (rarlib, "RARCloseArchive");
pRARSetCallback = (RARSETCALLBACK)GetProcAddress (rarlib, "RARSetCallback");
pRARGetDllVersion = (RARGETDLLVERSION)GetProcAddress (rarlib, "RARGetDllVersion");
if (pRAROpenArchiveEx && pRARReadHeaderEx && pRARProcessFile && pRARCloseArchive && pRARSetCallback) {
int version = -1;
israr = 1;
if (pRARGetDllVersion)
version = pRARGetDllVersion ();
write_log (_T("%s version %08X detected\n"), tmp, version);
if (version < 4) {
write_log (_T("Too old unrar.dll, must be at least version 4\n"));
israr = -1;
}
}
}
}
#endif
}
return israr < 0 ? 0 : 1;
}
static int CALLBACK RARCallbackProc (UINT msg, LPARAM UserData, LPARAM P1, LPARAM P2)
{
if (msg == UCM_PROCESSDATA) {
zfile_fwrite ((uae_u8*)P1, 1, P2, rarunpackzf);
return 0;
}
return -1;
}
struct RARContext
{
struct RAROpenArchiveDataEx OpenArchiveData;
struct RARHeaderDataEx HeaderData;
HANDLE hArcData;
};
static void archive_close_rar (void *ctx)
{
struct RARContext* rc = (struct RARContext*)ctx;
xfree (rc);
}
struct zvolume *archive_directory_rar (struct zfile *z)
{
struct zvolume *zv;
struct RARContext *rc;
struct zfile *zftmp;
int cnt;
if (!canrar ())
return archive_directory_arcacc (z, ArchiveFormatRAR);
if (z->data)
/* wtf? stupid unrar.dll only accept filename as an input.. */
return archive_directory_arcacc (z, ArchiveFormatRAR);
rc = xcalloc (struct RARContext, 1);
zv = zvolume_alloc (z, ArchiveFormatRAR, rc, NULL);
rc->OpenArchiveData.ArcNameW = z->name;
rc->OpenArchiveData.OpenMode = RAR_OM_LIST;
rc->hArcData = pRAROpenArchiveEx (&rc->OpenArchiveData);
if (rc->OpenArchiveData.OpenResult != 0) {
zfile_fclose_archive (zv);
return archive_directory_arcacc (z, ArchiveFormatRAR);
}
pRARSetCallback (rc->hArcData, RARCallbackProc, 0);
cnt = 0;
while (pRARReadHeaderEx (rc->hArcData, &rc->HeaderData) == 0) {
struct zarchive_info zai;
struct znode *zn;
memset (&zai, 0, sizeof zai);
zai.name = rc->HeaderData.FileNameW;
zai.size = rc->HeaderData.UnpSize;
zai.flags = -1;
zai.tv.tv_sec = fromdostime (rc->HeaderData.FileTime);
zn = zvolume_addfile_abs (zv, &zai);
if (zn)
zn->offset = cnt++;
pRARProcessFile (rc->hArcData, RAR_SKIP, NULL, NULL);
}
pRARCloseArchive (rc->hArcData);
zftmp = zfile_fopen_empty (z, z->name, 0);
zv->archive = zftmp;
zv->method = ArchiveFormatRAR;
return zv;
}
static struct zfile *archive_access_rar (struct znode *zn)
{
struct RARContext *rc = (struct RARContext*)zn->volume->handle;
int i;
struct zfile *zf = NULL;
if (zn->volume->method != ArchiveFormatRAR)
return archive_access_arcacc (zn);
rc->OpenArchiveData.OpenMode = RAR_OM_EXTRACT;
rc->hArcData = pRAROpenArchiveEx (&rc->OpenArchiveData);
if (rc->OpenArchiveData.OpenResult != 0)
return NULL;
pRARSetCallback (rc->hArcData, RARCallbackProc, 0);
for (i = 0; i <= zn->offset; i++) {
if (pRARReadHeaderEx (rc->hArcData, &rc->HeaderData))
return NULL;
if (i < zn->offset) {
if (pRARProcessFile (rc->hArcData, RAR_SKIP, NULL, NULL))
goto end;
}
}
zf = zfile_fopen_empty (zn->volume->archive, zn->fullname, zn->size);
if (zf) {
rarunpackzf = zf;
if (pRARProcessFile (rc->hArcData, RAR_TEST, NULL, NULL)) {
zfile_fclose (zf);
zf = NULL;
}
}
end:
pRARCloseArchive(rc->hArcData);
return zf;
}
#endif
/* ArchiveAccess */
#if defined(ARCHIVEACCESS)
struct aaFILETIME
{
uae_u32 dwLowDateTime;
uae_u32 dwHighDateTime;
};
typedef void* aaHandle;
// This struct contains file information from an archive. The caller may store
// this information for accessing this file after calls to findFirst, findNext
#define FileInArchiveInfoStringSize 1024
struct aaFileInArchiveInfo {
int ArchiveHandle; // handle for Archive/class pointer
uae_u64 CompressedFileSize;
uae_u64 UncompressedFileSize;
uae_u32 attributes;
int IsDir;
struct aaFILETIME LastWriteTime;
char path[FileInArchiveInfoStringSize];
};
typedef HRESULT (__stdcall *aaReadCallback)(int StreamID, uae_u64 offset, uae_u32 count, void* buf, uae_u32 *processedSize);
typedef HRESULT (__stdcall *aaWriteCallback)(int StreamID, uae_u64 offset, uae_u32 count, const void *buf, uae_u32 *processedSize);
typedef aaHandle (__stdcall *aapOpenArchive)(aaReadCallback function, int StreamID, uae_u64 FileSize, int ArchiveType, int *result, TCHAR *password);
typedef int (__stdcall *aapGetFileCount)(aaHandle ArchiveHandle);
typedef int (__stdcall *aapGetFileInfo)(aaHandle ArchiveHandle, int FileNum, struct aaFileInArchiveInfo *FileInfo);
typedef int (__stdcall *aapExtract)(aaHandle ArchiveHandle, int FileNum, int StreamID, aaWriteCallback WriteFunc, uae_u64 *written);
typedef int (__stdcall *aapCloseArchive)(aaHandle ArchiveHandle);
static aapOpenArchive aaOpenArchive;
static aapGetFileCount aaGetFileCount;
static aapGetFileInfo aaGetFileInfo;
static aapExtract aaExtract;
static aapCloseArchive aaCloseArchive;
#ifdef _WIN32
static HMODULE arcacc_mod;
static void arcacc_free (void)
{
if (arcacc_mod)
FreeLibrary (arcacc_mod);
arcacc_mod = NULL;
}
static int arcacc_init (struct zfile *zf)
{
if (arcacc_mod)
return 1;
arcacc_mod = WIN32_LoadLibrary (_T("archiveaccess.dll"));
if (!arcacc_mod) {
write_log (_T("failed to open archiveaccess.dll ('%s')\n"), zfile_getname (zf));
return 0;
}
aaOpenArchive = (aapOpenArchive) GetProcAddress (arcacc_mod, "aaOpenArchive");
aaGetFileCount = (aapGetFileCount) GetProcAddress (arcacc_mod, "aaGetFileCount");
aaGetFileInfo = (aapGetFileInfo) GetProcAddress (arcacc_mod, "aaGetFileInfo");
aaExtract = (aapExtract) GetProcAddress (arcacc_mod, "aaExtract");
aaCloseArchive = (aapCloseArchive) GetProcAddress (arcacc_mod, "aaCloseArchive");
if (!aaOpenArchive || !aaGetFileCount || !aaGetFileInfo || !aaExtract || !aaCloseArchive) {
write_log (_T("Missing functions in archiveaccess.dll. Old version?\n"));
arcacc_free ();
return 0;
}
return 1;
}
#endif
#define ARCACC_STACKSIZE 10
static struct zfile *arcacc_stack[ARCACC_STACKSIZE];
static int arcacc_stackptr = -1;
static int arcacc_push (struct zfile *f)
{
if (arcacc_stackptr == ARCACC_STACKSIZE - 1)
return -1;
arcacc_stackptr++;
arcacc_stack[arcacc_stackptr] = f;
return arcacc_stackptr;
}
static void arcacc_pop (void)
{
arcacc_stackptr--;
}
static HRESULT __stdcall readCallback (int StreamID, uae_u64 offset, uae_u32 count, void *buf, uae_u32 *processedSize)
{
struct zfile *f = arcacc_stack[StreamID];
int ret;
zfile_fseek (f, (long)offset, SEEK_SET);
ret = (int)zfile_fread (buf, 1, count, f);
if (processedSize)
*processedSize = ret;
return 0;
}
static HRESULT __stdcall writeCallback (int StreamID, uae_u64 offset, uae_u32 count, const void *buf, uae_u32 *processedSize)
{
struct zfile *f = arcacc_stack[StreamID];
int ret;
ret = (int)zfile_fwrite ((void*)buf, 1, count, f);
if (processedSize)
*processedSize = ret;
if (ret != count)
return -1;
return 0;
}
struct zvolume *archive_directory_arcacc (struct zfile *z, unsigned int id)
{
aaHandle ah;
int id_r, status;
int fc, f;
struct zvolume *zv;
int skipsize = 0;
if (!arcacc_init (z))
return NULL;
zv = zvolume_alloc (z, ArchiveFormatAA, NULL, NULL);
id_r = arcacc_push (z);
ah = aaOpenArchive (readCallback, id_r, zv->archivesize, id, &status, NULL);
if (!status) {
zv->handle = ah;
fc = aaGetFileCount (ah);
for (f = 0; f < fc; f++) {
struct aaFileInArchiveInfo fi;
TCHAR *name;
struct znode *zn;
struct zarchive_info zai;
memset (&fi, 0, sizeof (fi));
aaGetFileInfo (ah, f, &fi);
if (fi.IsDir)
continue;
name = au (fi.path);
memset (&zai, 0, sizeof zai);
zai.name = name;
zai.flags = -1;
zai.size = (unsigned int)fi.UncompressedFileSize;
zn = zvolume_addfile_abs (zv, &zai);
if (zn) {
zn->offset = f;
zn->method = id;
}
xfree(name);
if (id == ArchiveFormat7Zip) {
if (fi.CompressedFileSize)
skipsize = 0;
skipsize += (int)fi.UncompressedFileSize;
}
}
aaCloseArchive (ah);
}
arcacc_pop ();
zv->method = ArchiveFormatAA;
return zv;
}
static struct zfile *archive_access_arcacc (struct znode *zn)
{
struct zfile *zf = NULL;
struct zfile *z = zn->volume->archive;
int status, id_r, id_w;
aaHandle ah;