Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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/* 7zMain.c - Test application for 7z Decoder
2015-01-02 : Igor Pavlov : Public domain */
#include "Precomp.h"
#include <stdio.h>
#include <string.h>
#include "../../7z.h"
#include "../../7zAlloc.h"
#include "../../7zBuf.h"
#include "../../7zCrc.h"
#include "../../7zFile.h"
#include "../../7zVersion.h"
#ifndef USE_WINDOWS_FILE
/* for mkdir */
#ifdef _WIN32
#include <direct.h>
#else
#include <sys/stat.h>
#include <errno.h>
#endif
#endif
static ISzAlloc g_Alloc = { SzAlloc, SzFree };
static int Buf_EnsureSize(CBuf *dest, size_t size)
{
if (dest->size >= size)
return 1;
Buf_Free(dest, &g_Alloc);
return Buf_Create(dest, size, &g_Alloc);
}
#ifndef _WIN32
static Byte kUtf8Limits[5] = { 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
static Bool Utf16_To_Utf8(Byte *dest, size_t *destLen, const UInt16 *src, size_t srcLen)
{
size_t destPos = 0, srcPos = 0;
for (;;)
{
unsigned numAdds;
UInt32 value;
if (srcPos == srcLen)
{
*destLen = destPos;
return True;
}
value = src[srcPos++];
if (value < 0x80)
{
if (dest)
dest[destPos] = (char)value;
destPos++;
continue;
}
if (value >= 0xD800 && value < 0xE000)
{
UInt32 c2;
if (value >= 0xDC00 || srcPos == srcLen)
break;
c2 = src[srcPos++];
if (c2 < 0xDC00 || c2 >= 0xE000)
break;
value = (((value - 0xD800) << 10) | (c2 - 0xDC00)) + 0x10000;
}
for (numAdds = 1; numAdds < 5; numAdds++)
if (value < (((UInt32)1) << (numAdds * 5 + 6)))
break;
if (dest)
dest[destPos] = (char)(kUtf8Limits[numAdds - 1] + (value >> (6 * numAdds)));
destPos++;
do
{
numAdds--;
if (dest)
dest[destPos] = (char)(0x80 + ((value >> (6 * numAdds)) & 0x3F));
destPos++;
}
while (numAdds != 0);
}
*destLen = destPos;
return False;
}
static SRes Utf16_To_Utf8Buf(CBuf *dest, const UInt16 *src, size_t srcLen)
{
size_t destLen = 0;
Bool res;
Utf16_To_Utf8(NULL, &destLen, src, srcLen);
destLen += 1;
if (!Buf_EnsureSize(dest, destLen))
return SZ_ERROR_MEM;
res = Utf16_To_Utf8(dest->data, &destLen, src, srcLen);
dest->data[destLen] = 0;
return res ? SZ_OK : SZ_ERROR_FAIL;
}
#endif
static SRes Utf16_To_Char(CBuf *buf, const UInt16 *s
#ifdef _WIN32
, UINT codePage
#endif
)
{
unsigned len = 0;
for (len = 0; s[len] != 0; len++);
#ifdef _WIN32
{
unsigned size = len * 3 + 100;
if (!Buf_EnsureSize(buf, size))
return SZ_ERROR_MEM;
{
buf->data[0] = 0;
if (len != 0)
{
char defaultChar = '_';
BOOL defUsed;
unsigned numChars = 0;
numChars = WideCharToMultiByte(codePage, 0, s, len, (char *)buf->data, size, &defaultChar, &defUsed);
if (numChars == 0 || numChars >= size)
return SZ_ERROR_FAIL;
buf->data[numChars] = 0;
}
return SZ_OK;
}
}
#else
return Utf16_To_Utf8Buf(buf, s, len);
#endif
}
#ifdef _WIN32
#ifndef USE_WINDOWS_FILE
static UINT g_FileCodePage = CP_ACP;
#endif
#define MY_FILE_CODE_PAGE_PARAM ,g_FileCodePage
#else
#define MY_FILE_CODE_PAGE_PARAM
#endif
static WRes MyCreateDir(const UInt16 *name)
{
#ifdef USE_WINDOWS_FILE
return CreateDirectoryW(name, NULL) ? 0 : GetLastError();
#else
CBuf buf;
WRes res;
Buf_Init(&buf);
RINOK(Utf16_To_Char(&buf, name MY_FILE_CODE_PAGE_PARAM));
res =
#ifdef _WIN32
_mkdir((const char *)buf.data)
#else
mkdir((const char *)buf.data, 0777)
#endif
== 0 ? 0 : errno;
Buf_Free(&buf, &g_Alloc);
return res;
#endif
}
static WRes OutFile_OpenUtf16(CSzFile *p, const UInt16 *name)
{
#ifdef USE_WINDOWS_FILE
return OutFile_OpenW(p, name);
#else
CBuf buf;
WRes res;
Buf_Init(&buf);
RINOK(Utf16_To_Char(&buf, name MY_FILE_CODE_PAGE_PARAM));
res = OutFile_Open(p, (const char *)buf.data);
Buf_Free(&buf, &g_Alloc);
return res;
#endif
}
static SRes PrintString(const UInt16 *s)
{
CBuf buf;
SRes res;
Buf_Init(&buf);
res = Utf16_To_Char(&buf, s
#ifdef _WIN32
, CP_OEMCP
#endif
);
if (res == SZ_OK)
fputs((const char *)buf.data, stdout);
Buf_Free(&buf, &g_Alloc);
return res;
}
static void UInt64ToStr(UInt64 value, char *s)
{
char temp[32];
int pos = 0;
do
{
temp[pos++] = (char)('0' + (unsigned)(value % 10));
value /= 10;
}
while (value != 0);
do
*s++ = temp[--pos];
while (pos);
*s = '\0';
}
static char *UIntToStr(char *s, unsigned value, int numDigits)
{
char temp[16];
int pos = 0;
do
temp[pos++] = (char)('0' + (value % 10));
while (value /= 10);
for (numDigits -= pos; numDigits > 0; numDigits--)
*s++ = '0';
do
*s++ = temp[--pos];
while (pos);
*s = '\0';
return s;
}
static void UIntToStr_2(char *s, unsigned value)
{
s[0] = (char)('0' + (value / 10));
s[1] = (char)('0' + (value % 10));
}
#define PERIOD_4 (4 * 365 + 1)
#define PERIOD_100 (PERIOD_4 * 25 - 1)
#define PERIOD_400 (PERIOD_100 * 4 + 1)
static void ConvertFileTimeToString(const CNtfsFileTime *nt, char *s)
{
unsigned year, mon, hour, min, sec;
Byte ms[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
unsigned t;
UInt32 v;
UInt64 v64 = nt->Low | ((UInt64)nt->High << 32);
v64 /= 10000000;
sec = (unsigned)(v64 % 60); v64 /= 60;
min = (unsigned)(v64 % 60); v64 /= 60;
hour = (unsigned)(v64 % 24); v64 /= 24;
v = (UInt32)v64;
year = (unsigned)(1601 + v / PERIOD_400 * 400);
v %= PERIOD_400;
t = v / PERIOD_100; if (t == 4) t = 3; year += t * 100; v -= t * PERIOD_100;
t = v / PERIOD_4; if (t == 25) t = 24; year += t * 4; v -= t * PERIOD_4;
t = v / 365; if (t == 4) t = 3; year += t; v -= t * 365;
if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))
ms[1] = 29;
for (mon = 0;; mon++)
{
unsigned s = ms[mon];
if (v < s)
break;
v -= s;
}
s = UIntToStr(s, year, 4); *s++ = '-';
UIntToStr_2(s, mon + 1); s[2] = '-'; s += 3;
UIntToStr_2(s, (unsigned)v + 1); s[2] = ' '; s += 3;
UIntToStr_2(s, hour); s[2] = ':'; s += 3;
UIntToStr_2(s, min); s[2] = ':'; s += 3;
UIntToStr_2(s, sec); s[2] = 0;
}
void PrintError(const char *sz)
{
printf("\nERROR: %s\n", sz);
}
#ifdef USE_WINDOWS_FILE
static void GetAttribString(UInt32 wa, Bool isDir, char *s)
{
s[0] = (char)(((wa & FILE_ATTRIBUTE_DIRECTORY) != 0 || isDir) ? 'D' : '.');
s[1] = (char)(((wa & FILE_ATTRIBUTE_READONLY ) != 0) ? 'R': '.');
s[2] = (char)(((wa & FILE_ATTRIBUTE_HIDDEN ) != 0) ? 'H': '.');
s[3] = (char)(((wa & FILE_ATTRIBUTE_SYSTEM ) != 0) ? 'S': '.');
s[4] = (char)(((wa & FILE_ATTRIBUTE_ARCHIVE ) != 0) ? 'A': '.');
s[5] = '\0';
}
#else
static void GetAttribString(UInt32, Bool, char *s)
{
s[0] = '\0';
}
#endif
// #define NUM_PARENTS_MAX 128
int MY_CDECL main(int numargs, char *args[])
{
CFileInStream archiveStream;
CLookToRead lookStream;
CSzArEx db;
SRes res;
ISzAlloc allocImp;
ISzAlloc allocTempImp;
UInt16 *temp = NULL;
size_t tempSize = 0;
// UInt32 parents[NUM_PARENTS_MAX];
printf("\n7z ANSI-C Decoder " MY_VERSION_COPYRIGHT_DATE "\n\n");
if (numargs == 1)
{
printf(
"Usage: 7zDec <command> <archive_name>\n\n"
"<Commands>\n"
" e: Extract files from archive (without using directory names)\n"
" l: List contents of archive\n"
" t: Test integrity of archive\n"
" x: eXtract files with full paths\n");
return 0;
}
if (numargs < 3)
{
PrintError("incorrect command");
return 1;
}
#if defined(_WIN32) && !defined(USE_WINDOWS_FILE) && !defined(UNDER_CE)
g_FileCodePage = AreFileApisANSI() ? CP_ACP : CP_OEMCP;
#endif
allocImp.Alloc = SzAlloc;
allocImp.Free = SzFree;
allocTempImp.Alloc = SzAllocTemp;
allocTempImp.Free = SzFreeTemp;
#ifdef UNDER_CE
if (InFile_OpenW(&archiveStream.file, L"\test.7z"))
#else
if (InFile_Open(&archiveStream.file, args[2]))
#endif
{
PrintError("can not open input file");
return 1;
}
FileInStream_CreateVTable(&archiveStream);
LookToRead_CreateVTable(&lookStream, False);
lookStream.realStream = &archiveStream.s;
LookToRead_Init(&lookStream);
CrcGenerateTable();
SzArEx_Init(&db);
res = SzArEx_Open(&db, &lookStream.s, &allocImp, &allocTempImp);
if (res == SZ_OK)
{
char *command = args[1];
int listCommand = 0, testCommand = 0, fullPaths = 0;
if (strcmp(command, "l") == 0) listCommand = 1;
else if (strcmp(command, "t") == 0) testCommand = 1;
else if (strcmp(command, "e") == 0) { }
else if (strcmp(command, "x") == 0) { fullPaths = 1; }
else
{
PrintError("incorrect command");
res = SZ_ERROR_FAIL;
}
if (res == SZ_OK)
{
UInt32 i;
/*
if you need cache, use these 3 variables.
if you use external function, you can make these variable as static.
*/
UInt32 blockIndex = 0xFFFFFFFF; /* it can have any value before first call (if outBuffer = 0) */
Byte *outBuffer = 0; /* it must be 0 before first call for each new archive. */
size_t outBufferSize = 0; /* it can have any value before first call (if outBuffer = 0) */
for (i = 0; i < db.NumFiles; i++)
{
size_t offset = 0;
size_t outSizeProcessed = 0;
// const CSzFileItem *f = db.Files + i;
size_t len;
int isDir = SzArEx_IsDir(&db, i);
if (listCommand == 0 && isDir && !fullPaths)
continue;
len = SzArEx_GetFileNameUtf16(&db, i, NULL);
// len = SzArEx_GetFullNameLen(&db, i);
if (len > tempSize)
{
SzFree(NULL, temp);
tempSize = len;
temp = (UInt16 *)SzAlloc(NULL, tempSize * sizeof(temp[0]));
if (!temp)
{
res = SZ_ERROR_MEM;
break;
}
}
SzArEx_GetFileNameUtf16(&db, i, temp);
/*
if (SzArEx_GetFullNameUtf16_Back(&db, i, temp + len) != temp)
{
res = SZ_ERROR_FAIL;
break;
}
*/
if (listCommand)
{
char attr[8], s[32], t[32];
UInt64 fileSize;
GetAttribString(SzBitWithVals_Check(&db.Attribs, i) ? db.Attribs.Vals[i] : 0, isDir, attr);
fileSize = SzArEx_GetFileSize(&db, i);
UInt64ToStr(fileSize, s);
if (SzBitWithVals_Check(&db.MTime, i))
ConvertFileTimeToString(&db.MTime.Vals[i], t);
else
{
size_t j;
for (j = 0; j < 19; j++)
t[j] = ' ';
t[j] = '\0';
}
printf("%s %s %10s ", t, attr, s);
res = PrintString(temp);
if (res != SZ_OK)
break;
if (isDir)
printf("/");
printf("\n");
continue;
}
fputs(testCommand ?
"Testing ":
"Extracting ",
stdout);
res = PrintString(temp);
if (res != SZ_OK)
break;
if (isDir)
printf("/");
else
{
res = SzArEx_Extract(&db, &lookStream.s, i,
&blockIndex, &outBuffer, &outBufferSize,
&offset, &outSizeProcessed,
&allocImp, &allocTempImp);
if (res != SZ_OK)
break;
}
if (!testCommand)
{
CSzFile outFile;
size_t processedSize;
size_t j;
UInt16 *name = (UInt16 *)temp;
const UInt16 *destPath = (const UInt16 *)name;
for (j = 0; name[j] != 0; j++)
if (name[j] == '/')
{
if (fullPaths)
{
name[j] = 0;
MyCreateDir(name);
name[j] = CHAR_PATH_SEPARATOR;
}
else
destPath = name + j + 1;
}
if (isDir)
{
MyCreateDir(destPath);
printf("\n");
continue;
}
else if (OutFile_OpenUtf16(&outFile, destPath))
{
PrintError("can not open output file");
res = SZ_ERROR_FAIL;
break;
}
processedSize = outSizeProcessed;
if (File_Write(&outFile, outBuffer + offset, &processedSize) != 0 || processedSize != outSizeProcessed)
{
PrintError("can not write output file");
res = SZ_ERROR_FAIL;
break;
}
if (File_Close(&outFile))
{
PrintError("can not close output file");
res = SZ_ERROR_FAIL;
break;
}
#ifdef USE_WINDOWS_FILE
if (SzBitWithVals_Check(&db.Attribs, i))
SetFileAttributesW(destPath, db.Attribs.Vals[i]);
#endif
}
printf("\n");
}
IAlloc_Free(&allocImp, outBuffer);
}
}
SzArEx_Free(&db, &allocImp);
SzFree(NULL, temp);
File_Close(&archiveStream.file);
if (res == SZ_OK)
{
printf("\nEverything is Ok\n");
return 0;
}
if (res == SZ_ERROR_UNSUPPORTED)
PrintError("decoder doesn't support this archive");
else if (res == SZ_ERROR_MEM)
PrintError("can not allocate memory");
else if (res == SZ_ERROR_CRC)
PrintError("CRC error");
else
printf("\nERROR #%d\n", res);
return 1;
}