commit 6ca4b680b3c42f8eb2b925b3656b65a2c5768e86
parent b73e411c75ed914df03f3a3e566ec0db4fa8aaf2
Author: Christian Grothoff <christian@grothoff.org>
Date: Sun, 4 Sep 2005 08:20:07 +0000
update
Diffstat:
2 files changed, 152 insertions(+), 586 deletions(-)
diff --git a/src/plugins/oo/README b/src/plugins/oo/README
@@ -1,11 +1,6 @@
-This is to become an extractor for OpenOffice formats.
+This is an extractor for OpenOffice formats.
OO uses 'zip' files that contain a file 'meta.xml' which
in turn contains the data we care about.
-The plugin will use zlib to get to the zip-contents
-(the code here so far is a copy of some demo code from
- zlib, which I hope will work nicely).
-
-Anyway, after we get to meta.xml we'll need to parse
-it. Both is not done yet, standby.
+The plugin uses zlib to get to the zip-contents.
diff --git a/src/plugins/oo/ooextractor.c b/src/plugins/oo/ooextractor.c
@@ -35,25 +35,17 @@
#define ZLIB_FILEFUNC_MODE_READ (1)
#define ZLIB_FILEFUNC_MODE_WRITE (2)
#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
-
#define ZLIB_FILEFUNC_MODE_EXISTING (4)
#define ZLIB_FILEFUNC_MODE_CREATE (8)
-#ifndef ZCALLBACK
-#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
-#define ZCALLBACK CALLBACK
-#else
-#define ZCALLBACK
-#endif
-#endif
-typedef voidpf (ZCALLBACK *open_file_func) (voidpf opaque, const char* filename, int mode);
-typedef uLong (ZCALLBACK *read_file_func) (voidpf opaque, voidpf stream, void* buf, uLong size);
-typedef uLong (ZCALLBACK *write_file_func) (voidpf opaque, voidpf stream, const void* buf, uLong size);
-typedef long (ZCALLBACK *tell_file_func) (voidpf opaque, voidpf stream);
-typedef long (ZCALLBACK *seek_file_func) (voidpf opaque, voidpf stream, uLong offset, int origin);
-typedef int (ZCALLBACK *close_file_func) (voidpf opaque, voidpf stream);
-typedef int (ZCALLBACK *testerror_file_func) (voidpf opaque, voidpf stream);
+typedef voidpf ( *open_file_func) (voidpf opaque, const char* filename, int mode);
+typedef uLong ( *read_file_func) (voidpf opaque, voidpf stream, void* buf, uLong size);
+typedef uLong ( *write_file_func) (voidpf opaque, voidpf stream, const void* buf, uLong size);
+typedef long ( *tell_file_func) (voidpf opaque, voidpf stream);
+typedef long ( *seek_file_func) (voidpf opaque, voidpf stream, uLong offset, int origin);
+typedef int ( *close_file_func) (voidpf opaque, voidpf stream);
+typedef int ( *testerror_file_func) (voidpf opaque, voidpf stream);
typedef struct zlib_filefunc_def_s
{
@@ -77,110 +69,6 @@ typedef struct zlib_filefunc_def_s
/* ******************* former crypt.h ********************* */
-#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
-
-/***********************************************************************
- * Return the next byte in the pseudo-random sequence
- */
-static int decrypt_byte(unsigned long* pkeys, const unsigned long* pcrc_32_tab)
-{
- unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an
- * unpredictable manner on 16-bit systems; not a problem
- * with any known compiler so far, though */
-
- temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
- return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
-}
-
-/***********************************************************************
- * Update the encryption keys with the next byte of plain text
- */
-static int update_keys(unsigned long* pkeys,const unsigned long* pcrc_32_tab,int c)
-{
- (*(pkeys+0)) = CRC32((*(pkeys+0)), c);
- (*(pkeys+1)) += (*(pkeys+0)) & 0xff;
- (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
- {
- register int keyshift = (int)((*(pkeys+1)) >> 24);
- (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
- }
- return c;
-}
-
-
-/***********************************************************************
- * Initialize the encryption keys and the random header according to
- * the given password.
- */
-static void init_keys(const char* passwd,unsigned long* pkeys,const unsigned long* pcrc_32_tab)
-{
- *(pkeys+0) = 305419896L;
- *(pkeys+1) = 591751049L;
- *(pkeys+2) = 878082192L;
- while (*passwd != '\0') {
- update_keys(pkeys,pcrc_32_tab,(int)*passwd);
- passwd++;
- }
-}
-
-#define zdecode(pkeys,pcrc_32_tab,c) \
- (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
-
-#define zencode(pkeys,pcrc_32_tab,c,t) \
- (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))
-
-
-#define RAND_HEAD_LEN 12
- /* "last resort" source for second part of crypt seed pattern */
-# ifndef ZCR_SEED2
-# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
-# endif
-
-static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting)
- const char *passwd; /* password string */
- unsigned char *buf; /* where to write header */
- int bufSize;
- unsigned long* pkeys;
- const unsigned long* pcrc_32_tab;
- unsigned long crcForCrypting;
-{
- int n; /* index in random header */
- int t; /* temporary */
- int c; /* random byte */
- unsigned char header[RAND_HEAD_LEN-2]; /* random header */
- static unsigned calls = 0; /* ensure different random header each time */
-
- if (bufSize<RAND_HEAD_LEN)
- return 0;
-
- /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
- * output of rand() to get less predictability, since rand() is
- * often poorly implemented.
- */
- if (++calls == 1)
- {
- srand((unsigned)(time(NULL) ^ ZCR_SEED2));
- }
- init_keys(passwd, pkeys, pcrc_32_tab);
- for (n = 0; n < RAND_HEAD_LEN-2; n++)
- {
- c = (rand() >> 7) & 0xff;
- header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
- }
- /* Encrypt random header (last two bytes is high word of crc) */
- init_keys(passwd, pkeys, pcrc_32_tab);
- for (n = 0; n < RAND_HEAD_LEN-2; n++)
- {
- buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
- }
- buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
- buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
- return n;
-}
-
-/* ********************** former unzip.c ********************* */
-
-
#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */
@@ -244,18 +132,6 @@ typedef struct unz_file_info_s
} unz_file_info;
-
-/* ****************************************** */
-/* Ryan supplied functions */
-/* unz_file_info contain information about a file in the zipfile */
-typedef struct unz_file_pos_s
-{
- uLong pos_in_zip_directory; /* offset in zip file directory */
- uLong num_of_file; /* # of file */
-} unz_file_pos;
-
-/* ****************************************** */
-
/*
Read extra field from the current file (opened by unzOpenCurrentFile)
This is the local-header version of the extra field (sometimes, there is
@@ -269,13 +145,6 @@ typedef struct unz_file_pos_s
the error code
*/
-
-#ifndef local
-# define local static
-#endif
-/* compile with -Dlocal if your debugger can't find static symbols */
-
-
#ifndef CASESENSITIVITYDEFAULT_NO
# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
# define CASESENSITIVITYDEFAULT_NO
@@ -302,8 +171,6 @@ typedef struct unz_file_pos_s
#define SIZEZIPLOCALHEADER (0x1e)
-
-
const char unz_copyright[] =
" unzip 1.00 Copyright 1998-2003 Gilles Vollant - http://www.winimage.com/zLibDll";
@@ -362,10 +229,6 @@ typedef struct
file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
file if we are decompressing it */
int encrypted;
-# ifndef NOUNCRYPT
- unsigned long keys[3]; /* keys defining the pseudo-random sequence */
- const unsigned long* pcrc_32_tab;
-# endif
} unz_s;
@@ -377,12 +240,12 @@ typedef struct
*/
-local int unzlocal_getByte OF((
+static int unzlocal_getByte OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream,
int *pi));
-local int unzlocal_getByte(pzlib_filefunc_def,filestream,pi)
+static int unzlocal_getByte(pzlib_filefunc_def,filestream,pi)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
int *pi;
@@ -407,12 +270,12 @@ local int unzlocal_getByte(pzlib_filefunc_def,filestream,pi)
/* ===========================================================================
Reads a long in LSB order from the given gz_stream. Sets
*/
-local int unzlocal_getShort OF((
+static int unzlocal_getShort OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream,
uLong *pX));
-local int unzlocal_getShort (pzlib_filefunc_def,filestream,pX)
+static int unzlocal_getShort (pzlib_filefunc_def,filestream,pX)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
uLong *pX;
@@ -435,12 +298,12 @@ local int unzlocal_getShort (pzlib_filefunc_def,filestream,pX)
return err;
}
-local int unzlocal_getLong OF((
+static int unzlocal_getLong OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream,
uLong *pX));
-local int unzlocal_getLong (pzlib_filefunc_def,filestream,pX)
+static int unzlocal_getLong (pzlib_filefunc_def,filestream,pX)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
uLong *pX;
@@ -473,7 +336,7 @@ local int unzlocal_getLong (pzlib_filefunc_def,filestream,pX)
/* My own strcmpi / strcasecmp */
-local int strcmpcasenosensitive_internal (fileName1,fileName2)
+static int strcmpcasenosensitive_internal (fileName1,fileName2)
const char* fileName1;
const char* fileName2;
{
@@ -538,11 +401,11 @@ static int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivit
Locate the Central directory of a zipfile (at the end, just before
the global comment)
*/
-local uLong unzlocal_SearchCentralDir OF((
+static uLong unzlocal_SearchCentralDir OF((
const zlib_filefunc_def* pzlib_filefunc_def,
voidpf filestream));
-local uLong unzlocal_SearchCentralDir(pzlib_filefunc_def,filestream)
+static uLong unzlocal_SearchCentralDir(pzlib_filefunc_def,filestream)
const zlib_filefunc_def* pzlib_filefunc_def;
voidpf filestream;
{
@@ -911,13 +774,6 @@ static unzFile ZEXPORT unzOpen2 (path, pzlib_filefunc_def)
return (unzFile)s;
}
-
-static unzFile ZEXPORT unzOpen (path)
- const char *path;
-{
- return unzOpen2(path, NULL);
-}
-
/*
Close the file in zip opened with unzipOpenCurrentFile
Return UNZ_CRCERROR if all the file was read but the CRC is not good
@@ -984,22 +840,6 @@ static int ZEXPORT unzClose (file)
/*
Write info about the ZipFile in the *pglobal_info structure.
No preparation of the structure is needed
- return UNZ_OK if there is no problem. */
-static int ZEXPORT unzGetGlobalInfo (file,pglobal_info)
- unzFile file;
- unz_global_info *pglobal_info;
-{
- unz_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- *pglobal_info=s->gi;
- return UNZ_OK;
-}
-
-/*
- Write info about the ZipFile in the *pglobal_info structure.
- No preparation of the structure is needed
return UNZ_OK if there is no problem.
*/
static int ZEXPORT unzGetCurrentFileInfo (file,
@@ -1124,78 +964,157 @@ static int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity)
/*
-///////////////////////////////////////////
-// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net)
-// I need random access
-//
-// Further optimization could be realized by adding an ability
-// to cache the directory in memory. The goal being a single
-// comprehensive file read to put the file I need in a memory.
-*/
+ Read bytes from the current file.
+ buf contain buffer where data must be copied
+ len the size of buf.
-/*
-typedef struct unz_file_pos_s
-{
- uLong pos_in_zip_directory; // offset in file
- uLong num_of_file; // # of file
-} unz_file_pos;
+ return the number of byte copied if somes bytes are copied
+ return 0 if the end of file was reached
+ return <0 with error code if there is an error
+ (UNZ_ERRNO for IO error, or zLib error for uncompress error)
*/
-
-static int ZEXPORT unzGetFilePos(file, file_pos)
+static int ZEXPORT unzReadCurrentFile (file, buf, len)
unzFile file;
- unz_file_pos* file_pos;
+ voidp buf;
+ unsigned len;
{
+ int err=UNZ_OK;
+ uInt iRead = 0;
unz_s* s;
-
- if (file==NULL || file_pos==NULL)
+ file_in_zip_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
return UNZ_PARAMERROR;
s=(unz_s*)file;
- if (!s->current_file_ok)
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+
+ if ((pfile_in_zip_read_info->read_buffer == NULL))
return UNZ_END_OF_LIST_OF_FILE;
+ if (len==0)
+ return 0;
- file_pos->pos_in_zip_directory = s->pos_in_central_dir;
- file_pos->num_of_file = s->num_file;
+ pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
- return UNZ_OK;
-}
+ pfile_in_zip_read_info->stream.avail_out = (uInt)len;
-static int ZEXPORT unzGoToFilePos(file, file_pos)
- unzFile file;
- unz_file_pos* file_pos;
-{
- unz_s* s;
- int err;
+ if (len>pfile_in_zip_read_info->rest_read_uncompressed)
+ pfile_in_zip_read_info->stream.avail_out =
+ (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
- if (file==NULL || file_pos==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
+ while (pfile_in_zip_read_info->stream.avail_out>0)
+ {
+ if ((pfile_in_zip_read_info->stream.avail_in==0) &&
+ (pfile_in_zip_read_info->rest_read_compressed>0))
+ {
+ uInt uReadThis = UNZ_BUFSIZE;
+ if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
+ uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
+ if (uReadThis == 0)
+ return UNZ_EOF;
+ if (ZSEEK(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->pos_in_zipfile +
+ pfile_in_zip_read_info->byte_before_the_zipfile,
+ ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+ if (ZREAD(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->read_buffer,
+ uReadThis)!=uReadThis)
+ return UNZ_ERRNO;
- /* jump to the right spot */
- s->pos_in_central_dir = file_pos->pos_in_zip_directory;
- s->num_file = file_pos->num_of_file;
- /* set the current file */
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- /* return results */
- s->current_file_ok = (err == UNZ_OK);
+ pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
+
+ pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
+
+ pfile_in_zip_read_info->stream.next_in =
+ (Bytef*)pfile_in_zip_read_info->read_buffer;
+ pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
+ }
+
+ if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
+ {
+ uInt uDoCopy,i ;
+
+ if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
+ (pfile_in_zip_read_info->rest_read_compressed == 0))
+ return (iRead==0) ? UNZ_EOF : iRead;
+
+ if (pfile_in_zip_read_info->stream.avail_out <
+ pfile_in_zip_read_info->stream.avail_in)
+ uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
+ else
+ uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
+
+ for (i=0;i<uDoCopy;i++)
+ *(pfile_in_zip_read_info->stream.next_out+i) =
+ *(pfile_in_zip_read_info->stream.next_in+i);
+
+ pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
+ pfile_in_zip_read_info->stream.next_out,
+ uDoCopy);
+ pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
+ pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
+ pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
+ pfile_in_zip_read_info->stream.next_out += uDoCopy;
+ pfile_in_zip_read_info->stream.next_in += uDoCopy;
+ pfile_in_zip_read_info->stream.total_out += uDoCopy;
+ iRead += uDoCopy;
+ }
+ else
+ {
+ uLong uTotalOutBefore,uTotalOutAfter;
+ const Bytef *bufBefore;
+ uLong uOutThis;
+ int flush=Z_SYNC_FLUSH;
+
+ uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
+ bufBefore = pfile_in_zip_read_info->stream.next_out;
+
+ /*
+ if ((pfile_in_zip_read_info->rest_read_uncompressed ==
+ pfile_in_zip_read_info->stream.avail_out) &&
+ (pfile_in_zip_read_info->rest_read_compressed == 0))
+ flush = Z_FINISH;
+ */
+ err=inflate(&pfile_in_zip_read_info->stream,flush);
+
+ uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
+ uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+ pfile_in_zip_read_info->crc32 =
+ crc32(pfile_in_zip_read_info->crc32,bufBefore,
+ (uInt)(uOutThis));
+
+ pfile_in_zip_read_info->rest_read_uncompressed -=
+ uOutThis;
+
+ iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+ if (err==Z_STREAM_END)
+ return (iRead==0) ? UNZ_EOF : iRead;
+ if (err!=Z_OK)
+ break;
+ }
+ }
+
+ if (err==Z_OK)
+ return iRead;
return err;
}
/*
-// Unzip Helper Functions - should be here?
-///////////////////////////////////////////
-*/
-
-/*
Read the local header of the current zipfile
Check the coherency of the local header and info in the end of central
directory about this file
store in *piSizeVar the size of extra info in local header
(filename and size of extra field data)
*/
-local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,
+static int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,
poffset_local_extrafield,
psize_local_extrafield)
unz_s* s;
@@ -1281,16 +1200,17 @@ local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,
return err;
}
+
+
/*
Open for reading data the current file in the zipfile.
If there is no error and the file is opened, the return value is UNZ_OK.
*/
-static int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
+static int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw)
unzFile file;
int* method;
int* level;
int raw;
- const char* password;
{
int err=UNZ_OK;
uInt iSizeVar;
@@ -1298,12 +1218,6 @@ static int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
file_in_zip_read_info_s* pfile_in_zip_read_info;
uLong offset_local_extrafield; /* offset of the local extra field */
uInt size_local_extrafield; /* size of the local extra field */
-# ifndef NOUNCRYPT
- char source[12];
-# else
- if (password != NULL)
- return UNZ_PARAMERROR;
-# endif
if (file==NULL)
return UNZ_PARAMERROR;
@@ -1313,7 +1227,6 @@ static int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
if (s->pfile_in_zip_read != NULL)
unzCloseCurrentFile(file);
-
if (unzlocal_CheckCurrentFileCoherencyHeader(s,&iSizeVar,
&offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
return UNZ_BADZIPFILE;
@@ -1356,10 +1269,10 @@ static int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
err=UNZ_BADZIPFILE;
pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
- pfile_in_zip_read_info->crc32=0;
+ pfile_in_zip_read_info->crc32=0;
pfile_in_zip_read_info->compression_method =
s->cur_file_info.compression_method;
- pfile_in_zip_read_info->filestream=s->filestream;
+ pfile_in_zip_read_info->filestream=s->filestream;
pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
@@ -1401,351 +1314,9 @@ static int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
s->pfile_in_zip_read = pfile_in_zip_read_info;
-# ifndef NOUNCRYPT
- if (password != NULL)
- {
- int i;
- s->pcrc_32_tab = get_crc_table();
- init_keys(password,s->keys,s->pcrc_32_tab);
- if (ZSEEK(s->z_filefunc, s->filestream,
- s->pfile_in_zip_read->pos_in_zipfile +
- s->pfile_in_zip_read->byte_before_the_zipfile,
- SEEK_SET)!=0)
- return UNZ_INTERNALERROR;
- if(ZREAD(s->z_filefunc, s->filestream,source, 12)<12)
- return UNZ_INTERNALERROR;
-
- for (i = 0; i<12; i++)
- zdecode(s->keys,s->pcrc_32_tab,source[i]);
-
- s->pfile_in_zip_read->pos_in_zipfile+=12;
- s->encrypted=1;
- }
-# endif
-
-
return UNZ_OK;
}
-static int ZEXPORT unzOpenCurrentFile (file)
- unzFile file;
-{
- return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
-}
-
-static int ZEXPORT unzOpenCurrentFilePassword (file, password)
- unzFile file;
- const char* password;
-{
- return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
-}
-
-static int ZEXPORT unzOpenCurrentFile2 (file,method,level,raw)
- unzFile file;
- int* method;
- int* level;
- int raw;
-{
- return unzOpenCurrentFile3(file, method, level, raw, NULL);
-}
-
-/*
- Read bytes from the current file.
- buf contain buffer where data must be copied
- len the size of buf.
-
- return the number of byte copied if somes bytes are copied
- return 0 if the end of file was reached
- return <0 with error code if there is an error
- (UNZ_ERRNO for IO error, or zLib error for uncompress error)
-*/
-static int ZEXPORT unzReadCurrentFile (file, buf, len)
- unzFile file;
- voidp buf;
- unsigned len;
-{
- int err=UNZ_OK;
- uInt iRead = 0;
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
-
- if ((pfile_in_zip_read_info->read_buffer == NULL))
- return UNZ_END_OF_LIST_OF_FILE;
- if (len==0)
- return 0;
-
- pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
-
- pfile_in_zip_read_info->stream.avail_out = (uInt)len;
-
- if (len>pfile_in_zip_read_info->rest_read_uncompressed)
- pfile_in_zip_read_info->stream.avail_out =
- (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
-
- while (pfile_in_zip_read_info->stream.avail_out>0)
- {
- if ((pfile_in_zip_read_info->stream.avail_in==0) &&
- (pfile_in_zip_read_info->rest_read_compressed>0))
- {
- uInt uReadThis = UNZ_BUFSIZE;
- if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
- uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
- if (uReadThis == 0)
- return UNZ_EOF;
- if (ZSEEK(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- pfile_in_zip_read_info->pos_in_zipfile +
- pfile_in_zip_read_info->byte_before_the_zipfile,
- ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
- if (ZREAD(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- pfile_in_zip_read_info->read_buffer,
- uReadThis)!=uReadThis)
- return UNZ_ERRNO;
-
-
-# ifndef NOUNCRYPT
- if(s->encrypted)
- {
- uInt i;
- for(i=0;i<uReadThis;i++)
- pfile_in_zip_read_info->read_buffer[i] =
- zdecode(s->keys,s->pcrc_32_tab,
- pfile_in_zip_read_info->read_buffer[i]);
- }
-# endif
-
-
- pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
-
- pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
-
- pfile_in_zip_read_info->stream.next_in =
- (Bytef*)pfile_in_zip_read_info->read_buffer;
- pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
- }
-
- if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
- {
- uInt uDoCopy,i ;
-
- if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
- (pfile_in_zip_read_info->rest_read_compressed == 0))
- return (iRead==0) ? UNZ_EOF : iRead;
-
- if (pfile_in_zip_read_info->stream.avail_out <
- pfile_in_zip_read_info->stream.avail_in)
- uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
- else
- uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
-
- for (i=0;i<uDoCopy;i++)
- *(pfile_in_zip_read_info->stream.next_out+i) =
- *(pfile_in_zip_read_info->stream.next_in+i);
-
- pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
- pfile_in_zip_read_info->stream.next_out,
- uDoCopy);
- pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
- pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
- pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
- pfile_in_zip_read_info->stream.next_out += uDoCopy;
- pfile_in_zip_read_info->stream.next_in += uDoCopy;
- pfile_in_zip_read_info->stream.total_out += uDoCopy;
- iRead += uDoCopy;
- }
- else
- {
- uLong uTotalOutBefore,uTotalOutAfter;
- const Bytef *bufBefore;
- uLong uOutThis;
- int flush=Z_SYNC_FLUSH;
-
- uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
- bufBefore = pfile_in_zip_read_info->stream.next_out;
-
- /*
- if ((pfile_in_zip_read_info->rest_read_uncompressed ==
- pfile_in_zip_read_info->stream.avail_out) &&
- (pfile_in_zip_read_info->rest_read_compressed == 0))
- flush = Z_FINISH;
- */
- err=inflate(&pfile_in_zip_read_info->stream,flush);
-
- uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
- uOutThis = uTotalOutAfter-uTotalOutBefore;
-
- pfile_in_zip_read_info->crc32 =
- crc32(pfile_in_zip_read_info->crc32,bufBefore,
- (uInt)(uOutThis));
-
- pfile_in_zip_read_info->rest_read_uncompressed -=
- uOutThis;
-
- iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
-
- if (err==Z_STREAM_END)
- return (iRead==0) ? UNZ_EOF : iRead;
- if (err!=Z_OK)
- break;
- }
- }
-
- if (err==Z_OK)
- return iRead;
- return err;
-}
-
-
-/*
- Give the current position in uncompressed data
-*/
-static z_off_t ZEXPORT unztell (file)
- unzFile file;
-{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- return (z_off_t)pfile_in_zip_read_info->stream.total_out;
-}
-
-
-/*
- return 1 if the end of file was reached, 0 elsewhere
-*/
-static int ZEXPORT unzeof (file)
- unzFile file;
-{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
- return 1;
- else
- return 0;
-}
-
-
-
-/*
- Read extra field from the current file (opened by unzOpenCurrentFile)
- This is the local-header version of the extra field (sometimes, there is
- more info in the local-header version than in the central-header)
-
- if buf==NULL, it return the size of the local extra field that can be read
-
- if buf!=NULL, len is the size of the buffer, the extra header is copied in
- buf.
- the return value is the number of bytes copied in buf, or (if <0)
- the error code
-*/
-static int ZEXPORT unzGetLocalExtrafield (file,buf,len)
- unzFile file;
- voidp buf;
- unsigned len;
-{
- unz_s* s;
- file_in_zip_read_info_s* pfile_in_zip_read_info;
- uInt read_now;
- uLong size_to_read;
-
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return UNZ_PARAMERROR;
-
- size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
- pfile_in_zip_read_info->pos_local_extrafield);
-
- if (buf==NULL)
- return (int)size_to_read;
-
- if (len>size_to_read)
- read_now = (uInt)size_to_read;
- else
- read_now = (uInt)len ;
-
- if (read_now==0)
- return 0;
-
- if (ZSEEK(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- pfile_in_zip_read_info->offset_local_extrafield +
- pfile_in_zip_read_info->pos_local_extrafield,
- ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
-
- if (ZREAD(pfile_in_zip_read_info->z_filefunc,
- pfile_in_zip_read_info->filestream,
- buf,size_to_read)!=size_to_read)
- return UNZ_ERRNO;
-
- return (int)read_now;
-}
-
-
-/*
- Get the global comment string of the ZipFile, in the szComment buffer.
- uSizeBuf is the size of the szComment buffer.
- return the number of byte copied or an error code <0
-*/
-static int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)
- unzFile file;
- char *szComment;
- uLong uSizeBuf;
-{
- unz_s* s;
- uLong uReadThis ;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz_s*)file;
-
- uReadThis = uSizeBuf;
- if (uReadThis>s->gi.size_comment)
- uReadThis = s->gi.size_comment;
-
- if (ZSEEK(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
-
- if (uReadThis>0)
- {
- *szComment='\0';
- if (ZREAD(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
- return UNZ_ERRNO;
- }
-
- if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
- *(szComment+s->gi.size_comment)='\0';
- return (int)uReadThis;
-}
-
-
/* *************************** main extractor code *********************** */
@@ -1815,7 +1386,7 @@ static char *libextractor_oo_getmimetype(unzFile uf) {
0,
NULL,
0) &&
- (UNZ_OK == unzOpenCurrentFilePassword(uf,NULL)) ) ) {
+ (UNZ_OK == unzOpenCurrentFile3(uf,NULL, NULL, 0)) ) ) {
buf_size = file_info.uncompressed_size;
if (buf_size > 1024) {
@@ -1979,7 +1550,7 @@ libextractor_oo_extract(const char * filename,
return prev; /* problems... */
}
- if (UNZ_OK != unzOpenCurrentFilePassword(uf,NULL)) {
+ if (UNZ_OK != unzOpenCurrentFile3(uf, NULL, NULL, 0)) {
unzClose(uf);
return prev; /* problems... */
}
