commit b4ef30267b385b51949df757c5ae5a85d764cba3
parent d491e2066f59c74df2b3b8ac4d5450210826618f
Author: Christian Grothoff <christian@grothoff.org>
Date: Tue, 14 Aug 2012 16:53:21 +0000
implemented zip, sid, nsf, nsfe ad odf extractors
Diffstat:
15 files changed, 1881 insertions(+), 1253 deletions(-)
diff --git a/src/common/unzip.c b/src/common/unzip.c
@@ -25,6 +25,39 @@
* This code is based in part on
* unzip 1.00 Copyright 1998-2003 Gilles Vollant
* http://www.winimage.com/zLibDll"
+ *
+ *
+ * The filenames for each file in a zipfile are stored in two locations.
+ * There is one at the start of each entry, just before the compressed data,
+ * and another at the end in a 'central directory structure'.
+ *
+ * In order to catch self-extracting executables, we scan backwards from the end
+ * of the file looking for the central directory structure. The previous version
+ * of this went forewards through the local headers, but that only works for plain
+ * vanilla zip's and I don't feel like writing a special case for each of the dozen
+ * self-extracting executable stubs.
+ *
+ * This assumes that the zip file is considered to be non-corrupt/non-truncated.
+ * If it is truncated then it's not considered to be a zip and skipped.
+ *
+ * ZIP format description from appnote.iz and appnote.txt (more or less):
+ *
+ * (this is why you always need to put in the last floppy if you span disks)
+ *
+ * 0- 3 end of central dir signature 4 bytes (0x06054b50) P K ^E ^F
+ * 4- 5 number of this disk 2 bytes
+ * 6- 7 number of the disk with the
+ * start of the central directory 2 bytes
+ * 8- 9 total number of entries in
+ * the central dir on this disk 2 bytes
+ * 10-11 total number of entries in
+ * the central dir 2 bytes
+ * 12-15 size of the central directory 4 bytes
+ * 16-19 offset of start of central
+ * directory with respect to
+ * the starting disk number 4 bytes
+ * 20-21 zipfile comment length 2 bytes
+ * 22-?? zipfile comment (variable size) max length 65536 bytes
*/
#include "platform.h"
#include <ctype.h>
@@ -49,27 +82,27 @@
/**
* IO callbacks for access to the ZIP data.
*/
-struct EXTRACTOR_UnzipFileFuncDefs
+struct FileFuncDefs
{
/**
* Callback for reading 'size' bytes from the ZIP archive into buf.
*/
- uLong ( *zread_file) (voidpf opaque, void* buf, uLong size);
+ uLong (*zread_file) (voidpf opaque, void* buf, uLong size);
/**
* Callback to obtain the current read offset in the ZIP archive.
*/
- long ( *ztell_file) (voidpf opaque);
+ long (*ztell_file) (voidpf opaque);
/**
* Callback for seeking to a different position in the ZIP archive.
*/
- long ( *zseek_file) (voidpf opaque, uLong offset, int origin);
+ long (*zseek_file) (voidpf opaque, uLong offset, int origin);
/**
* Opaque argument to pass to all IO functions.
*/
- voidpf opaque;
+ voidpf opaque;
};
@@ -119,6 +152,11 @@ struct GlobalInfo
* size of the global comment of the zipfile
*/
uLong size_comment;
+
+ /**
+ * offset of the global comment in the zipfile
+ */
+ uLong offset_comment;
};
@@ -198,9 +236,9 @@ struct FileInZipReadInfo
uLong rest_read_uncompressed;
/**
- * IO functions. (FIXME: where is this assigned?)
+ * IO functions.
*/
- struct EXTRACTOR_UnzipFileFuncDefs z_filefunc;
+ struct FileFuncDefs z_filefunc;
/**
* compression method (0==store)
@@ -223,7 +261,7 @@ struct EXTRACTOR_UnzipFile
/**
* io structore of the zipfile
*/
- struct EXTRACTOR_UnzipFileFuncDefs z_filefunc;
+ struct FileFuncDefs z_filefunc;
/**
* public global information
@@ -279,7 +317,7 @@ struct EXTRACTOR_UnzipFile
/**
* structure about the current file if we are decompressing it
*/
- struct FileInZipReadInfo* pfile_in_zip_read;
+ struct FileInZipReadInfo *pfile_in_zip_read;
/**
* Is the file encrypted?
@@ -292,33 +330,46 @@ struct EXTRACTOR_UnzipFile
* Read a byte from a gz_stream; update next_in and avail_in. Return EOF
* for end of file.
* IN assertion: the stream s has been sucessfully opened for reading.
+ *
+ * @param ffd functions for performing IO operations
+ * @param pi where to store the byte that was read
+ * @return EXTRACTOR_UNZIP_OK on success, or EXTRACTOR_UNZIP_EOF
*/
static int
-unzlocal_getByte (const struct EXTRACTOR_UnzipFileFuncDefs* pzlib_filefunc_def,
- int *pi)
+read_byte_from_ffd (const struct FileFuncDefs *ffd,
+ int *pi)
{
unsigned char c;
- if (1 != ZREAD (*pzlib_filefunc_def, &c, 1))
+ if (1 != ZREAD (*ffd, &c, 1))
return EXTRACTOR_UNZIP_EOF;
*pi = (int) c;
return EXTRACTOR_UNZIP_OK;
}
+/**
+ * Read a short (2 bytes) from a gz_stream; update next_in and avail_in. Return EOF
+ * for end of file.
+ * IN assertion: the stream s has been sucessfully opened for reading.
+ *
+ * @param ffd functions for performing IO operations
+ * @param pi where to store the short that was read
+ * @return EXTRACTOR_UNZIP_OK on success, or EXTRACTOR_UNZIP_EOF
+ */
static int
-unzlocal_getShort (const struct EXTRACTOR_UnzipFileFuncDefs* pzlib_filefunc_def,
- uLong *pX)
+read_short_from_ffd (const struct FileFuncDefs *ffd,
+ uLong *pX)
{
uLong x;
int i;
int err;
*pX = 0;
- if (EXTRACTOR_UNZIP_OK != (err = unzlocal_getByte (pzlib_filefunc_def, &i)))
+ if (EXTRACTOR_UNZIP_OK != (err = read_byte_from_ffd (ffd, &i)))
return err;
x = (uLong) i;
- if (EXTRACTOR_UNZIP_OK != (err = unzlocal_getByte (pzlib_filefunc_def, &i)))
+ if (EXTRACTOR_UNZIP_OK != (err = read_byte_from_ffd (ffd, &i)))
return err;
x += ((uLong) i) << 8;
*pX = x;
@@ -326,25 +377,34 @@ unzlocal_getShort (const struct EXTRACTOR_UnzipFileFuncDefs* pzlib_filefunc_def,
}
+/**
+ * Read a 'long' (4 bytes) from a gz_stream; update next_in and avail_in. Return EOF
+ * for end of file.
+ * IN assertion: the stream s has been sucessfully opened for reading.
+ *
+ * @param ffd functions for performing IO operations
+ * @param pi where to store the long that was read
+ * @return EXTRACTOR_UNZIP_OK on success, or EXTRACTOR_UNZIP_EOF
+ */
static int
-unzlocal_getLong (const struct EXTRACTOR_UnzipFileFuncDefs* pzlib_filefunc_def,
- uLong *pX)
+read_long_from_ffd (const struct FileFuncDefs *ffd,
+ uLong *pX)
{
uLong x;
int i;
int err;
*pX = 0;
- if (EXTRACTOR_UNZIP_OK != (err = unzlocal_getByte (pzlib_filefunc_def, &i)))
+ if (EXTRACTOR_UNZIP_OK != (err = read_byte_from_ffd (ffd, &i)))
return err;
x = (uLong) i;
- if (EXTRACTOR_UNZIP_OK != (err = unzlocal_getByte (pzlib_filefunc_def, &i)))
+ if (EXTRACTOR_UNZIP_OK != (err = read_byte_from_ffd (ffd, &i)))
return err;
x += ((uLong) i) << 8;
- if (EXTRACTOR_UNZIP_OK != (err = unzlocal_getByte (pzlib_filefunc_def, &i)))
+ if (EXTRACTOR_UNZIP_OK != (err = read_byte_from_ffd (ffd, &i)))
return err;
x += ((uLong) i) << 16;
- if (EXTRACTOR_UNZIP_OK != (err = unzlocal_getByte (pzlib_filefunc_def, &i)))
+ if (EXTRACTOR_UNZIP_OK != (err = read_byte_from_ffd (ffd, &i)))
return err;
x += ((uLong) i) << 24;
*pX = x;
@@ -366,7 +426,7 @@ unzlocal_getLong (const struct EXTRACTOR_UnzipFileFuncDefs* pzlib_filefunc_def,
/**
- * Compare two filename (fileName1,fileName2).
+ * Compare two filenames (fileName1, fileName2).
*
* @param filename1 name of first file
* @param filename2 name of second file
@@ -394,27 +454,24 @@ EXTRACTOR_common_unzip_string_file_name_compare (const char* fileName1,
/**
+ * Locate the central directory in the ZIP file.
*
+ * @param ffd IO functions
+ * @return offset of central directory, 0 on error
*/
static uLong
-unzlocal_SearchCentralDir (const struct EXTRACTOR_UnzipFileFuncDefs* pzlib_filefunc_def)
+locate_central_directory (const struct FileFuncDefs *ffd)
{
- unsigned char *buf;
+ unsigned char buf[BUFREADCOMMENT + 4];
uLong uSizeFile;
uLong uBackRead;
uLong uMaxBack = 0xffff; /* maximum size of global comment */
- uLong uPosFound = 0;
- if (0 != ZSEEK (*pzlib_filefunc_def, 0, SEEK_END))
+ if (0 != ZSEEK (*ffd, 0, SEEK_END))
return 0;
- uSizeFile = ZTELL (*pzlib_filefunc_def);
-
+ uSizeFile = ZTELL (*ffd);
if (uMaxBack > uSizeFile)
uMaxBack = uSizeFile;
-
- if (NULL == (buf = malloc(BUFREADCOMMENT + 4)))
- return 0;
-
uBackRead = 4;
while (uBackRead < uMaxBack)
{
@@ -427,156 +484,153 @@ unzlocal_SearchCentralDir (const struct EXTRACTOR_UnzipFileFuncDefs* pzlib_filef
else
uBackRead += BUFREADCOMMENT;
uReadPos = uSizeFile - uBackRead;
-
uReadSize = ((BUFREADCOMMENT + 4) < (uSizeFile - uReadPos))
? (BUFREADCOMMENT + 4)
: (uSizeFile - uReadPos);
- if (0 != ZSEEK (*pzlib_filefunc_def, uReadPos, SEEK_SET))
+ if (0 != ZSEEK (*ffd, uReadPos, SEEK_SET))
break;
-
- if (ZREAD (*pzlib_filefunc_def, buf, uReadSize) != uReadSize)
+ if (ZREAD (*ffd, buf, uReadSize) != uReadSize)
break;
-
i = (int) uReadSize - 3;
while (i-- > 0)
if ( (0x50 == (*(buf+i))) &&
(0x4b == (*(buf+i+1))) &&
(0x05 == (*(buf+i+2))) &&
(0x06 == (*(buf+i+3))) )
- {
- uPosFound = uReadPos + i;
- break;
- }
- if (0 != uPosFound)
- break;
+ return uReadPos + i;
}
- free (buf);
- return uPosFound;
+ return 0;
}
/**
* Translate date/time from Dos format to struct
* EXTRACTOR_UnzipDateTimeInfo (readable more easilty)
+ *
+ * @param ulDosDate time in DOS format (input)
+ * @param ptm where to write time in readable format
*/
static void
-unzlocal_DosDateToTmuDate (uLong ulDosDate,
+dos_date_to_tmu_date (uLong ulDosDate,
struct EXTRACTOR_UnzipDateTimeInfo* ptm)
{
uLong uDate;
uDate = (uLong) (ulDosDate >> 16);
ptm->tm_mday = (uInt) (uDate & 0x1f);
- ptm->tm_mon = (uInt) ((((uDate) & 0x1E0) / 0x20) - 1);
+ ptm->tm_mon = (uInt) ((((uDate) & 0x1E0) / 0x20) - 1);
ptm->tm_year = (uInt) (((uDate & 0x0FE00) / 0x0200) + 1980);
ptm->tm_hour = (uInt) ((ulDosDate & 0xF800) / 0x800);
- ptm->tm_min = (uInt) ((ulDosDate & 0x7E0) / 0x20);
- ptm->tm_sec = (uInt) (2 * (ulDosDate & 0x1f));
+ ptm->tm_min = (uInt) ((ulDosDate & 0x7E0) / 0x20);
+ ptm->tm_sec = (uInt) (2 * (ulDosDate & 0x1f));
}
+/**
+ * Write info about the ZipFile in the *pglobal_info structure.
+ * No preparation of the structure is needed.
+ *
+ * @param file zipfile to manipulate
+ * @param pfile_info file information to initialize
+ * @param pfile_info_internal internal file information to initialize
+ * @param szFileName where to write the name of the current file
+ * @param fileNameBufferSize number of bytes available in szFileName
+ * @param extraField where to write extra data
+ * @param extraFieldBufferSize number of bytes available in extraField
+ * @param szComment where to write the comment on the current file
+ * @param commentBufferSize number of bytes available in szComment
+ * @return EXTRACTOR_UNZIP_OK if there is no problem.
+ */
static int
-unzlocal_GetCurrentFileInfoInternal (struct EXTRACTOR_UnzipFile *s,
- struct EXTRACTOR_UnzipFileInfo *pfile_info,
- struct UnzipFileInfoInternal *pfile_info_internal,
- char *szFileName,
- uLong fileNameBufferSize,
- void *extraField,
- uLong extraFieldBufferSize,
- char *szComment,
- uLong commentBufferSize)
+get_current_file_info (struct EXTRACTOR_UnzipFile *file,
+ struct EXTRACTOR_UnzipFileInfo *pfile_info,
+ struct UnzipFileInfoInternal *pfile_info_internal,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize)
{
struct EXTRACTOR_UnzipFileInfo file_info;
struct UnzipFileInfoInternal file_info_internal;
- int err = EXTRACTOR_UNZIP_OK;
uLong uMagic;
long lSeek = 0;
- if (s == NULL)
+ if (NULL == file)
return EXTRACTOR_UNZIP_PARAMERROR;
- if (0 != ZSEEK (s->z_filefunc,
- s->pos_in_central_dir + s->byte_before_the_zipfile,
+ if (0 != ZSEEK (file->z_filefunc,
+ file->pos_in_central_dir + file->byte_before_the_zipfile,
SEEK_SET))
- err = EXTRACTOR_UNZIP_ERRNO;
+ return EXTRACTOR_UNZIP_ERRNO;
/* we check the magic */
- if (EXTRACTOR_UNZIP_OK == err)
- {
- if (unzlocal_getLong(&s->z_filefunc, &uMagic) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
- else if (uMagic!=0x02014b50)
- err=EXTRACTOR_UNZIP_BADZIPFILE;
- }
- if (unzlocal_getShort (&s->z_filefunc, &file_info.version) != EXTRACTOR_UNZIP_OK)
- err = EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.version_needed) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.flag) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.compression_method) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getLong(&s->z_filefunc, &file_info.dosDate) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
-
- if (unzlocal_getLong(&s->z_filefunc, &file_info.crc) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getLong(&s->z_filefunc, &file_info.compressed_size) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getLong(&s->z_filefunc, &file_info.uncompressed_size) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.size_filename) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.size_file_extra) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.size_file_comment) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.disk_num_start) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getShort(&s->z_filefunc, &file_info.internal_fa) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (unzlocal_getLong(&s->z_filefunc, &file_info.external_fa) != EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd(&file->z_filefunc, &uMagic))
+ return EXTRACTOR_UNZIP_ERRNO;
+ if (0x02014b50 != uMagic)
+ return EXTRACTOR_UNZIP_BADZIPFILE;
- if (unzlocal_getLong (&s->z_filefunc,
- &file_info_internal.offset_curfile) != EXTRACTOR_UNZIP_OK)
- err = EXTRACTOR_UNZIP_ERRNO;
+ if ( (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&file->z_filefunc, &file_info.version)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&file->z_filefunc, &file_info.version_needed)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&file->z_filefunc, &file_info.flag)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&file->z_filefunc, &file_info.compression_method)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd (&file->z_filefunc, &file_info.dosDate)) )
+ return EXTRACTOR_UNZIP_ERRNO;
+ dos_date_to_tmu_date (file_info.dosDate,
+ &file_info.tmu_date);
+ if ( (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd(&file->z_filefunc, &file_info.crc)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd(&file->z_filefunc, &file_info.compressed_size)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd(&file->z_filefunc, &file_info.uncompressed_size)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd(&file->z_filefunc, &file_info.size_filename)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd(&file->z_filefunc, &file_info.size_file_extra)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd(&file->z_filefunc, &file_info.size_file_comment)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd(&file->z_filefunc, &file_info.disk_num_start)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd(&file->z_filefunc, &file_info.internal_fa)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd(&file->z_filefunc, &file_info.external_fa)) ||
+ (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd (&file->z_filefunc,
+ &file_info_internal.offset_curfile)) )
+ return EXTRACTOR_UNZIP_ERRNO;
lSeek += file_info.size_filename;
- if ((err==EXTRACTOR_UNZIP_OK) && (szFileName!=NULL))
+ if (NULL != szFileName)
{
uLong uSizeRead;
+
if (file_info.size_filename < fileNameBufferSize)
{
- *(szFileName+file_info.size_filename) = '\0';
+ *(szFileName + file_info.size_filename) = '\0';
uSizeRead = file_info.size_filename;
}
else
uSizeRead = fileNameBufferSize;
- if ((file_info.size_filename > 0) && (fileNameBufferSize > 0))
- if (ZREAD(s->z_filefunc, szFileName, uSizeRead) != uSizeRead)
- err = EXTRACTOR_UNZIP_ERRNO;
+ if ( (file_info.size_filename > 0) &&
+ (fileNameBufferSize > 0) )
+ if (ZREAD(file->z_filefunc, szFileName, uSizeRead) != uSizeRead)
+ return EXTRACTOR_UNZIP_ERRNO;
lSeek -= uSizeRead;
}
-
- if ((err==EXTRACTOR_UNZIP_OK) && (extraField!=NULL))
+ if (NULL != extraField)
{
uLong uSizeRead;
+
if (file_info.size_file_extra<extraFieldBufferSize)
uSizeRead = file_info.size_file_extra;
else
@@ -584,53 +638,55 @@ unzlocal_GetCurrentFileInfoInternal (struct EXTRACTOR_UnzipFile *s,
if (0 != lSeek)
{
- if (0 == ZSEEK (s->z_filefunc, lSeek, SEEK_CUR))
+ if (0 == ZSEEK (file->z_filefunc, lSeek, SEEK_CUR))
lSeek = 0;
else
- err = EXTRACTOR_UNZIP_ERRNO;
+ return EXTRACTOR_UNZIP_ERRNO;
}
- if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
- if (ZREAD(s->z_filefunc, extraField,uSizeRead)!=uSizeRead)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if ( (file_info.size_file_extra > 0) &&
+ (extraFieldBufferSize > 0) &&
+ (ZREAD (file->z_filefunc,
+ extraField,
+ uSizeRead) != uSizeRead) )
+ return EXTRACTOR_UNZIP_ERRNO;
lSeek += file_info.size_file_extra - uSizeRead;
}
else
- lSeek+=file_info.size_file_extra;
-
+ lSeek += file_info.size_file_extra;
- if ((err==EXTRACTOR_UNZIP_OK) && (szComment!=NULL))
+ if (NULL != szComment)
{
- uLong uSizeRead ;
- if (file_info.size_file_comment<commentBufferSize)
+ uLong uSizeRead;
+
+ if (file_info.size_file_comment < commentBufferSize)
{
- *(szComment+file_info.size_file_comment)='\0';
+ *(szComment+file_info.size_file_comment) = '\0';
uSizeRead = file_info.size_file_comment;
}
else
uSizeRead = commentBufferSize;
-
- if (lSeek!=0)
+
+ if (0 != lSeek)
{
- if (ZSEEK(s->z_filefunc, lSeek, SEEK_CUR)==0)
- lSeek=0;
+ if (0 == ZSEEK (file->z_filefunc, lSeek, SEEK_CUR))
+ lSeek = 0;
else
- err=EXTRACTOR_UNZIP_ERRNO;
+ return EXTRACTOR_UNZIP_ERRNO;
}
- if ((file_info.size_file_comment>0) && (commentBufferSize>0))
- if (ZREAD(s->z_filefunc, szComment,uSizeRead)!=uSizeRead)
- err=EXTRACTOR_UNZIP_ERRNO;
- lSeek+=file_info.size_file_comment - uSizeRead;
+ if ( (file_info.size_file_comment > 0) &&
+ (commentBufferSize > 0) &&
+ (ZREAD (file->z_filefunc, szComment, uSizeRead) != uSizeRead) )
+ return EXTRACTOR_UNZIP_ERRNO;
+ lSeek += file_info.size_file_comment - uSizeRead;
}
else
- lSeek+=file_info.size_file_comment;
+ lSeek += file_info.size_file_comment;
- if ((err==EXTRACTOR_UNZIP_OK) && (pfile_info!=NULL))
- *pfile_info=file_info;
-
- if ((err==EXTRACTOR_UNZIP_OK) && (pfile_info_internal!=NULL))
- *pfile_info_internal=file_info_internal;
-
- return err;
+ if (NULL != pfile_info)
+ *pfile_info = file_info;
+ if (NULL != pfile_info_internal)
+ *pfile_info_internal = file_info_internal;
+ return EXTRACTOR_UNZIP_OK;
}
@@ -649,11 +705,11 @@ EXTRACTOR_common_unzip_go_to_first_file (struct EXTRACTOR_UnzipFile *file)
return EXTRACTOR_UNZIP_PARAMERROR;
file->pos_in_central_dir = file->offset_central_dir;
file->num_file = 0;
- err = unzlocal_GetCurrentFileInfoInternal (file,
- &file->cur_file_info,
- &file->cur_file_info_internal,
- NULL, 0, NULL, 0, NULL, 0);
- file->current_file_ok = (err == EXTRACTOR_UNZIP_OK);
+ err = get_current_file_info (file,
+ &file->cur_file_info,
+ &file->cur_file_info_internal,
+ NULL, 0, NULL, 0, NULL, 0);
+ file->current_file_ok = (EXTRACTOR_UNZIP_OK == err);
return err;
}
@@ -661,14 +717,14 @@ EXTRACTOR_common_unzip_go_to_first_file (struct EXTRACTOR_UnzipFile *file)
/**
* Open a Zip file.
*
- * @param pzlib_filefunc_def IO functions
+ * @param ffd IO functions
* @return NULL on error
*/
static struct EXTRACTOR_UnzipFile *
-EXTRACTOR_common_unzip_open2 (struct EXTRACTOR_UnzipFileFuncDefs *pzlib_filefunc_def)
+unzip_open_using_ffd (struct FileFuncDefs *ffd)
{
struct EXTRACTOR_UnzipFile us;
- struct EXTRACTOR_UnzipFile *s;
+ struct EXTRACTOR_UnzipFile *file;
uLong central_pos;
uLong uL;
uLong number_disk; /* number of the current dist, used for
@@ -678,78 +734,76 @@ EXTRACTOR_common_unzip_open2 (struct EXTRACTOR_UnzipFileFuncDefs *pzlib_filefunc
uLong number_entry_CD; /* total number of entries in
the central dir
(same than number_entry on nospan) */
-
- int err = EXTRACTOR_UNZIP_OK;
memset (&us, 0, sizeof(us));
- us.z_filefunc = *pzlib_filefunc_def;
-
- central_pos = unzlocal_SearchCentralDir (&us.z_filefunc);
- if (central_pos==0)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if (ZSEEK(us.z_filefunc,
- central_pos, SEEK_SET)!=0)
- err=EXTRACTOR_UNZIP_ERRNO;
+ us.z_filefunc = *ffd;
+ central_pos = locate_central_directory (&us.z_filefunc);
+ if (0 == central_pos)
+ return NULL;
+ if (0 != ZSEEK (us.z_filefunc,
+ central_pos, SEEK_SET))
+ return NULL;
/* the signature, already checked */
- if (unzlocal_getLong(&us.z_filefunc, &uL)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd (&us.z_filefunc, &uL))
+ return NULL;
/* number of this disk */
- if (unzlocal_getShort(&us.z_filefunc, &number_disk)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&us.z_filefunc, &number_disk))
+ return NULL;
/* number of the disk with the start of the central directory */
- if (unzlocal_getShort(&us.z_filefunc, &number_disk_with_CD)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&us.z_filefunc, &number_disk_with_CD))
+ return NULL;
/* total number of entries in the central dir on this disk */
- if (unzlocal_getShort(&us.z_filefunc, &us.gi.number_entry)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&us.z_filefunc, &us.gi.number_entry))
+ return NULL;
/* total number of entries in the central dir */
- if (unzlocal_getShort(&us.z_filefunc, &number_entry_CD)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&us.z_filefunc, &number_entry_CD))
+ return NULL;
- if ((number_entry_CD!=us.gi.number_entry) ||
- (number_disk_with_CD!=0) ||
- (number_disk!=0))
- err=EXTRACTOR_UNZIP_BADZIPFILE;
+ if ( (number_entry_CD != us.gi.number_entry) ||
+ (0 != number_disk_with_CD) ||
+ (0 != number_disk) )
+ return NULL;
/* size of the central directory */
- if (unzlocal_getLong(&us.z_filefunc, &us.size_central_dir)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd (&us.z_filefunc, &us.size_central_dir))
+ return NULL;
/* offset of start of central directory with respect to the
starting disk number */
- if (unzlocal_getLong(&us.z_filefunc, &us.offset_central_dir)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_long_from_ffd (&us.z_filefunc, &us.offset_central_dir))
+ return NULL;
/* zipfile comment length */
- if (unzlocal_getShort(&us.z_filefunc, &us.gi.size_comment)!=EXTRACTOR_UNZIP_OK)
- err=EXTRACTOR_UNZIP_ERRNO;
-
- if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
- (err==EXTRACTOR_UNZIP_OK))
- err=EXTRACTOR_UNZIP_BADZIPFILE;
+ if (EXTRACTOR_UNZIP_OK !=
+ read_short_from_ffd (&us.z_filefunc, &us.gi.size_comment))
+ return NULL;
+ us.gi.offset_comment = ZTELL (us.z_filefunc);
+ if ((central_pos < us.offset_central_dir + us.size_central_dir))
+ return NULL;
- if (err!=EXTRACTOR_UNZIP_OK)
- {
- return NULL;
- }
-
us.byte_before_the_zipfile = central_pos -
- (us.offset_central_dir+us.size_central_dir);
+ (us.offset_central_dir + us.size_central_dir);
us.central_pos = central_pos;
us.pfile_in_zip_read = NULL;
us.encrypted = 0;
- if (NULL == (s = malloc (sizeof(struct EXTRACTOR_UnzipFile))))
+ if (NULL == (file = malloc (sizeof(struct EXTRACTOR_UnzipFile))))
return NULL;
- *s=us;
- EXTRACTOR_common_unzip_go_to_first_file(s);
- return s;
+ *file = us;
+ EXTRACTOR_common_unzip_go_to_first_file (file);
+ return file;
}
@@ -759,48 +813,32 @@ EXTRACTOR_common_unzip_open2 (struct EXTRACTOR_UnzipFileFuncDefs *pzlib_filefunc
* @return EXTRACTOR_UNZIP_CRCERROR if all the file was read but the CRC is not good
*/
int
-EXTRACTOR_common_unzip_close_current_file (struct EXTRACTOR_UnzipFile * file)
+EXTRACTOR_common_unzip_close_current_file (struct EXTRACTOR_UnzipFile *file)
{
- int err=EXTRACTOR_UNZIP_OK;
-
- struct EXTRACTOR_UnzipFile* s;
- struct FileInZipReadInfo* pfile_in_zip_read_info;
- if (file==NULL)
- return EXTRACTOR_UNZIP_PARAMERROR;
- s=(struct EXTRACTOR_UnzipFile*)file;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
-
- if (pfile_in_zip_read_info==NULL)
- return EXTRACTOR_UNZIP_PARAMERROR;
-
-
- if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
- {
- if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
- err=EXTRACTOR_UNZIP_CRCERROR;
- }
-
-
- if (NULL != pfile_in_zip_read_info->read_buffer)
- free(pfile_in_zip_read_info->read_buffer);
- pfile_in_zip_read_info->read_buffer = NULL;
- if (pfile_in_zip_read_info->stream_initialised)
- inflateEnd(&pfile_in_zip_read_info->stream);
-
- pfile_in_zip_read_info->stream_initialised = 0;
- free(pfile_in_zip_read_info);
-
- s->pfile_in_zip_read=NULL;
-
- return err;
+ struct FileInZipReadInfo* pfile_in_zip_read_info;
+ int err = EXTRACTOR_UNZIP_OK;
+
+ if (NULL == file)
+ return EXTRACTOR_UNZIP_PARAMERROR;
+ if (NULL == (pfile_in_zip_read_info = file->pfile_in_zip_read))
+ return EXTRACTOR_UNZIP_PARAMERROR;
+ if ( (0 == pfile_in_zip_read_info->rest_read_uncompressed) &&
+ (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait) )
+ err = EXTRACTOR_UNZIP_CRCERROR;
+ if (NULL != pfile_in_zip_read_info->read_buffer)
+ free (pfile_in_zip_read_info->read_buffer);
+ pfile_in_zip_read_info->read_buffer = NULL;
+ if (pfile_in_zip_read_info->stream_initialised)
+ inflateEnd (&pfile_in_zip_read_info->stream);
+ pfile_in_zip_read_info->stream_initialised = 0;
+ free (pfile_in_zip_read_info);
+ file->pfile_in_zip_read = NULL;
+ return err;
}
/**
- * Close a ZipFile. If there is files inside the .Zip opened with
- * EXTRACTOR_common_unzip_open_current_file, these files MUST be
- * closed with EXTRACTOR_common_unzip_close_current_file before
- * calling EXTRACTOR_common_unzip_close.
+ * Close a ZipFile.
*
* @param file zip file to close
* @return EXTRACTOR_UNZIP_OK if there is no problem.
@@ -808,17 +846,40 @@ EXTRACTOR_common_unzip_close_current_file (struct EXTRACTOR_UnzipFile * file)
int
EXTRACTOR_common_unzip_close (struct EXTRACTOR_UnzipFile *file)
{
- struct EXTRACTOR_UnzipFile* s;
-
- if (file==NULL)
+ if (NULL == file)
return EXTRACTOR_UNZIP_PARAMERROR;
- s=(struct EXTRACTOR_UnzipFile*)file;
-
- if (s->pfile_in_zip_read!=NULL)
- EXTRACTOR_common_unzip_close_current_file(file);
+ if (NULL != file->pfile_in_zip_read)
+ EXTRACTOR_common_unzip_close_current_file (file);
+ free (file);
+ return EXTRACTOR_UNZIP_OK;
+}
+
- free(s);
- return EXTRACTOR_UNZIP_OK;
+/**
+ * Obtain the global comment from a ZIP file.
+ *
+ * @param file unzip file to inspect
+ * @param comment where to copy the comment
+ * @param comment_len maximum number of bytes available in comment
+ * @return EXTRACTOR_UNZIP_OK on success
+ */
+int
+EXTRACTOR_common_unzip_get_global_comment (struct EXTRACTOR_UnzipFile *file,
+ char *comment,
+ size_t comment_len)
+{
+ if (NULL == file)
+ return EXTRACTOR_UNZIP_PARAMERROR;
+ if (comment_len > file->gi.size_comment)
+ comment_len = file->gi.size_comment + 1;
+ if (0 !=
+ ZSEEK (file->z_filefunc, file->gi.offset_comment, SEEK_SET))
+ return EXTRACTOR_UNZIP_ERRNO;
+ if (comment_len - 1 !=
+ ZREAD (file->z_filefunc, comment, comment_len - 1))
+ return EXTRACTOR_UNZIP_ERRNO;
+ comment[comment_len - 1] = '\0';
+ return EXTRACTOR_UNZIP_OK;
}
@@ -827,6 +888,7 @@ EXTRACTOR_common_unzip_close (struct EXTRACTOR_UnzipFile *file)
* No preparation of the structure is needed.
*
* @param file zipfile to manipulate
+ * @param pfile_info file information to initialize
* @param szFileName where to write the name of the current file
* @param fileNameBufferSize number of bytes available in szFileName
* @param extraField where to write extra data
@@ -845,10 +907,10 @@ EXTRACTOR_common_unzip_get_current_file_info (struct EXTRACTOR_UnzipFile * file,
char *szComment,
uLong commentBufferSize)
{
- return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL,
- szFileName,fileNameBufferSize,
- extraField,extraFieldBufferSize,
- szComment,commentBufferSize);
+ return get_current_file_info (file, pfile_info, NULL,
+ szFileName, fileNameBufferSize,
+ extraField, extraFieldBufferSize,
+ szComment, commentBufferSize);
}
@@ -860,27 +922,25 @@ EXTRACTOR_common_unzip_get_current_file_info (struct EXTRACTOR_UnzipFile * file,
* EXTRACTOR_UNZIP_END_OF_LIST_OF_FILE if the actual file was the latest.
*/
int
-EXTRACTOR_common_unzip_go_to_next_file (struct EXTRACTOR_UnzipFile * file)
+EXTRACTOR_common_unzip_go_to_next_file (struct EXTRACTOR_UnzipFile *file)
{
- struct EXTRACTOR_UnzipFile* s;
- int err;
-
- if (file==NULL)
- return EXTRACTOR_UNZIP_PARAMERROR;
- s=(struct EXTRACTOR_UnzipFile*)file;
- if (!s->current_file_ok)
- return EXTRACTOR_UNZIP_END_OF_LIST_OF_FILE;
- if (s->num_file+1==s->gi.number_entry)
- return EXTRACTOR_UNZIP_END_OF_LIST_OF_FILE;
-
- s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
- s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
- s->num_file++;
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
- &s->cur_file_info_internal,
- NULL,0,NULL,0,NULL,0);
- s->current_file_ok = (err == EXTRACTOR_UNZIP_OK);
- return err;
+ int err;
+
+ if (NULL == file)
+ return EXTRACTOR_UNZIP_PARAMERROR;
+ if (! file->current_file_ok)
+ return EXTRACTOR_UNZIP_END_OF_LIST_OF_FILE;
+ if (file->num_file + 1 == file->gi.number_entry)
+ return EXTRACTOR_UNZIP_END_OF_LIST_OF_FILE;
+ file->pos_in_central_dir += SIZECENTRALDIRITEM + file->cur_file_info.size_filename +
+ file->cur_file_info.size_file_extra + file->cur_file_info.size_file_comment;
+ file->num_file++;
+ err = get_current_file_info (file,
+ &file->cur_file_info,
+ &file->cur_file_info_internal,
+ NULL, 0, NULL, 0, NULL, 0);
+ file->current_file_ok = (EXTRACTOR_UNZIP_OK == err);
+ return err;
}
@@ -925,20 +985,20 @@ EXTRACTOR_common_unzip_go_find_local_file (struct EXTRACTOR_UnzipFile *file,
while (EXTRACTOR_UNZIP_OK == err)
{
- char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
+ char szCurrentFileName[UNZ_MAXFILENAMEINZIP + 1];
- err = EXTRACTOR_common_unzip_get_current_file_info (file, NULL,
- szCurrentFileName, sizeof (szCurrentFileName) - 1,
- NULL, 0, NULL, 0);
- if (EXTRACTOR_UNZIP_OK == err)
- {
- if (0 ==
- EXTRACTOR_common_unzip_string_file_name_compare (szCurrentFileName,
- szFileName,
- iCaseSensitivity))
- return EXTRACTOR_UNZIP_OK;
- err = EXTRACTOR_common_unzip_go_to_next_file (file);
- }
+ if (EXTRACTOR_UNZIP_OK !=
+ (err = EXTRACTOR_common_unzip_get_current_file_info (file, NULL,
+ szCurrentFileName,
+ sizeof (szCurrentFileName) - 1,
+ NULL, 0, NULL, 0)))
+ break;
+ if (0 ==
+ EXTRACTOR_common_unzip_string_file_name_compare (szCurrentFileName,
+ szFileName,
+ iCaseSensitivity))
+ return EXTRACTOR_UNZIP_OK;
+ err = EXTRACTOR_common_unzip_go_to_next_file (file);
}
/* We failed, so restore the state of the 'current file' to where we
@@ -969,7 +1029,7 @@ EXTRACTOR_common_unzip_read_current_file (struct EXTRACTOR_UnzipFile *file,
{
int err = EXTRACTOR_UNZIP_OK;
uInt iRead = 0;
- struct FileInZipReadInfo* pfile_in_zip_read_info;
+ struct FileInZipReadInfo *pfile_in_zip_read_info;
if (NULL == file)
return EXTRACTOR_UNZIP_PARAMERROR;
@@ -980,7 +1040,7 @@ EXTRACTOR_common_unzip_read_current_file (struct EXTRACTOR_UnzipFile *file,
if (0 == len)
return 0;
- pfile_in_zip_read_info->stream.next_out = (Bytef*) buf;
+ 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 =
@@ -989,14 +1049,14 @@ EXTRACTOR_common_unzip_read_current_file (struct EXTRACTOR_UnzipFile *file,
while (pfile_in_zip_read_info->stream.avail_out > 0)
{
if ( (0 == pfile_in_zip_read_info->stream.avail_in) &&
- (pfile_in_zip_read_info->rest_read_compressed>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 (0 == uReadThis)
return EXTRACTOR_UNZIP_EOF;
- if (0 !=
+ if (0 !=
ZSEEK (pfile_in_zip_read_info->z_filefunc,
pfile_in_zip_read_info->pos_in_zipfile +
pfile_in_zip_read_info->byte_before_the_zipfile,
@@ -1008,78 +1068,75 @@ EXTRACTOR_common_unzip_read_current_file (struct EXTRACTOR_UnzipFile *file,
return EXTRACTOR_UNZIP_ERRNO;
pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
- pfile_in_zip_read_info->rest_read_compressed-=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;
+ (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)
- {
- uInt uDoCopy;
- uInt i;
-
- if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
- (pfile_in_zip_read_info->rest_read_compressed == 0))
- return (iRead==0) ? EXTRACTOR_UNZIP_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;
- uLong 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 (Z_STREAM_END == err)
- return (0 == iRead) ? EXTRACTOR_UNZIP_EOF : iRead;
- if (Z_OK != err)
- break;
- }
+ if (0 == pfile_in_zip_read_info->compression_method)
+ {
+ uInt uDoCopy;
+
+ if ( (0 == pfile_in_zip_read_info->stream.avail_in) &&
+ (0 == pfile_in_zip_read_info->rest_read_compressed) )
+ return (0 == iRead) ? EXTRACTOR_UNZIP_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;
+ memcpy (pfile_in_zip_read_info->stream.next_out,
+ pfile_in_zip_read_info->stream.next_in,
+ uDoCopy);
+ 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;
+ uLong 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 (Z_STREAM_END == err)
+ return (0 == iRead) ? EXTRACTOR_UNZIP_EOF : iRead;
+ if (Z_OK != err)
+ break;
+ }
}
if (Z_OK == err)
@@ -1089,24 +1146,28 @@ EXTRACTOR_common_unzip_read_current_file (struct EXTRACTOR_UnzipFile *file,
/**
- * 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)
+ * 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)
+ *
+ * @param file zipfile to process
+ * @param piSizeVar where to store the size of the extra info
+ * @param poffset_local_extrafield where to store the offset of the local extrafield
+ * @param psoze_local_extrafield where to store the size of the local extrafield
+ * @return EXTRACTOR_UNZIP_OK on success
*/
static int
-unzlocal_CheckCurrentFileCoherencyHeader (struct EXTRACTOR_UnzipFile *file,
- uInt *piSizeVar,
- uLong *poffset_local_extrafield,
- uInt *psize_local_extrafield)
+parse_current_file_coherency_header (struct EXTRACTOR_UnzipFile *file,
+ uInt *piSizeVar,
+ uLong *poffset_local_extrafield,
+ uInt *psize_local_extrafield)
{
uLong uMagic;
uLong uData;
uLong uFlags;
uLong size_filename;
uLong size_extra_field;
- int err = EXTRACTOR_UNZIP_OK;
*piSizeVar = 0;
*poffset_local_extrafield = 0;
@@ -1118,76 +1179,61 @@ unzlocal_CheckCurrentFileCoherencyHeader (struct EXTRACTOR_UnzipFile *file,
SEEK_SET))
return EXTRACTOR_UNZIP_ERRNO;
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_getLong (&file->z_filefunc,
- &uMagic))
- err = EXTRACTOR_UNZIP_ERRNO;
- else if (0x04034b50 != uMagic)
- err = EXTRACTOR_UNZIP_BADZIPFILE;
+ read_long_from_ffd (&file->z_filefunc,
+ &uMagic))
+ return EXTRACTOR_UNZIP_ERRNO;
+ if (0x04034b50 != uMagic)
+ return EXTRACTOR_UNZIP_BADZIPFILE;
if ( (EXTRACTOR_UNZIP_OK !=
- unzlocal_getShort (&file->z_filefunc, &uData)) ||
+ read_short_from_ffd (&file->z_filefunc, &uData)) ||
(EXTRACTOR_UNZIP_OK !=
- unzlocal_getShort (&file->z_filefunc, &uFlags)) )
- err = EXTRACTOR_UNZIP_ERRNO;
-
- if (EXTRACTOR_UNZIP_OK != unzlocal_getShort (&file->z_filefunc, &uData))
- err = EXTRACTOR_UNZIP_ERRNO;
- else if ((EXTRACTOR_UNZIP_OK == err) &&
- (uData != file->cur_file_info.compression_method))
- err = EXTRACTOR_UNZIP_BADZIPFILE;
-
- if ( (EXTRACTOR_UNZIP_OK == err) &&
- (0 != file->cur_file_info.compression_method) &&
+ read_short_from_ffd (&file->z_filefunc, &uFlags)) )
+ return EXTRACTOR_UNZIP_ERRNO;
+ if (EXTRACTOR_UNZIP_OK != read_short_from_ffd (&file->z_filefunc, &uData))
+ return EXTRACTOR_UNZIP_ERRNO;
+ if (uData != file->cur_file_info.compression_method)
+ return EXTRACTOR_UNZIP_BADZIPFILE;
+ if ( (0 != file->cur_file_info.compression_method) &&
(Z_DEFLATED != file->cur_file_info.compression_method) )
- err = EXTRACTOR_UNZIP_BADZIPFILE;
-
+ return EXTRACTOR_UNZIP_BADZIPFILE;
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_getLong (&file->z_filefunc, &uData)) /* date/time */
- err = EXTRACTOR_UNZIP_ERRNO;
-
+ read_long_from_ffd (&file->z_filefunc, &uData)) /* date/time */
+ return EXTRACTOR_UNZIP_ERRNO;
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_getLong (&file->z_filefunc, &uData)) /* crc */
- err = EXTRACTOR_UNZIP_ERRNO;
- else if ( (EXTRACTOR_UNZIP_OK == err) &&
- (uData != file->cur_file_info.crc) &&
- (0 == (uFlags & 8)) )
- err = EXTRACTOR_UNZIP_BADZIPFILE;
-
+ read_long_from_ffd (&file->z_filefunc, &uData)) /* crc */
+ return EXTRACTOR_UNZIP_ERRNO;
+ if ( (uData != file->cur_file_info.crc) &&
+ (0 == (uFlags & 8)) )
+ return EXTRACTOR_UNZIP_BADZIPFILE;
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_getLong(&file->z_filefunc, &uData)) /* size compr */
- err = EXTRACTOR_UNZIP_ERRNO;
- else if ( (EXTRACTOR_UNZIP_OK == err) &&
- (uData != file->cur_file_info.compressed_size) &&
- (0 == (uFlags & 8)) )
- err = EXTRACTOR_UNZIP_BADZIPFILE;
-
+ read_long_from_ffd(&file->z_filefunc, &uData)) /* size compr */
+ return EXTRACTOR_UNZIP_ERRNO;
+ if ( (uData != file->cur_file_info.compressed_size) &&
+ (0 == (uFlags & 8)) )
+ return EXTRACTOR_UNZIP_BADZIPFILE;
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_getLong (&file->z_filefunc,
- &uData)) /* size uncompr */
- err = EXTRACTOR_UNZIP_ERRNO;
- else if ( (EXTRACTOR_UNZIP_OK == err) &&
- (uData != file->cur_file_info.uncompressed_size) &&
- (0 == (uFlags & 8)))
- err = EXTRACTOR_UNZIP_BADZIPFILE;
-
+ read_long_from_ffd (&file->z_filefunc,
+ &uData)) /* size uncompr */
+ return EXTRACTOR_UNZIP_ERRNO;
+ if ( (uData != file->cur_file_info.uncompressed_size) &&
+ (0 == (uFlags & 8)))
+ return EXTRACTOR_UNZIP_BADZIPFILE;
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_getShort (&file->z_filefunc, &size_filename))
- err = EXTRACTOR_UNZIP_ERRNO;
- else if ( (EXTRACTOR_UNZIP_OK == err) &&
- (size_filename != file->cur_file_info.size_filename) )
- err = EXTRACTOR_UNZIP_BADZIPFILE;
-
+ read_short_from_ffd (&file->z_filefunc, &size_filename))
+ return EXTRACTOR_UNZIP_ERRNO;
+ if (size_filename != file->cur_file_info.size_filename)
+ return EXTRACTOR_UNZIP_BADZIPFILE;
*piSizeVar += (uInt) size_filename;
-
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_getShort (&file->z_filefunc,
- &size_extra_field))
- err = EXTRACTOR_UNZIP_ERRNO;
+ read_short_from_ffd (&file->z_filefunc,
+ &size_extra_field))
+ return EXTRACTOR_UNZIP_ERRNO;
*poffset_local_extrafield = file->cur_file_info_internal.offset_curfile +
SIZEZIPLOCALHEADER + size_filename;
*psize_local_extrafield = (uInt) size_extra_field;
*piSizeVar += (uInt)size_extra_field;
- return err;
+ return EXTRACTOR_UNZIP_OK;
}
@@ -1200,7 +1246,7 @@ unzlocal_CheckCurrentFileCoherencyHeader (struct EXTRACTOR_UnzipFile *file,
int
EXTRACTOR_common_unzip_open_current_file (struct EXTRACTOR_UnzipFile *file)
{
- int err = EXTRACTOR_UNZIP_OK;
+ int err;
uInt iSizeVar;
struct FileInZipReadInfo *pfile_in_zip_read_info;
uLong offset_local_extrafield; /* offset of the local extra field */
@@ -1213,14 +1259,14 @@ EXTRACTOR_common_unzip_open_current_file (struct EXTRACTOR_UnzipFile *file)
if (NULL != file->pfile_in_zip_read)
EXTRACTOR_common_unzip_close_current_file (file);
if (EXTRACTOR_UNZIP_OK !=
- unzlocal_CheckCurrentFileCoherencyHeader (file,
- &iSizeVar,
- &offset_local_extrafield,
- &size_local_extrafield))
+ parse_current_file_coherency_header (file,
+ &iSizeVar,
+ &offset_local_extrafield,
+ &size_local_extrafield))
return EXTRACTOR_UNZIP_BADZIPFILE;
- if (NULL == (pfile_in_zip_read_info = malloc(sizeof(struct FileInZipReadInfo))))
+ if (NULL == (pfile_in_zip_read_info = malloc (sizeof(struct FileInZipReadInfo))))
return EXTRACTOR_UNZIP_INTERNALERROR;
- if (NULL == (pfile_in_zip_read_info->read_buffer = malloc(UNZ_BUFSIZE)))
+ if (NULL == (pfile_in_zip_read_info->read_buffer = malloc (UNZ_BUFSIZE)))
{
free (pfile_in_zip_read_info);
return EXTRACTOR_UNZIP_INTERNALERROR;
@@ -1232,7 +1278,11 @@ EXTRACTOR_common_unzip_open_current_file (struct EXTRACTOR_UnzipFile *file)
if ( (0 != file->cur_file_info.compression_method) &&
(Z_DEFLATED != file->cur_file_info.compression_method) )
- err = EXTRACTOR_UNZIP_BADZIPFILE;
+ {
+ // err = EXTRACTOR_UNZIP_BADZIPFILE;
+ // FIXME: we don't do anything with this 'err' code.
+ // Can this happen? Should we abort in this case?
+ }
pfile_in_zip_read_info->crc32_wait = file->cur_file_info.crc;
pfile_in_zip_read_info->crc32 = 0;
@@ -1240,8 +1290,7 @@ EXTRACTOR_common_unzip_open_current_file (struct EXTRACTOR_UnzipFile *file)
pfile_in_zip_read_info->z_filefunc = file->z_filefunc;
pfile_in_zip_read_info->byte_before_the_zipfile = file->byte_before_the_zipfile;
pfile_in_zip_read_info->stream.total_out = 0;
-
- if (file->cur_file_info.compression_method==Z_DEFLATED)
+ if (Z_DEFLATED == file->cur_file_info.compression_method)
{
pfile_in_zip_read_info->stream.zalloc = (alloc_func) NULL;
pfile_in_zip_read_info->stream.zfree = (free_func) NULL;
@@ -1270,11 +1319,19 @@ EXTRACTOR_common_unzip_open_current_file (struct EXTRACTOR_UnzipFile *file)
iSizeVar;
pfile_in_zip_read_info->stream.avail_in = 0;
file->pfile_in_zip_read = pfile_in_zip_read_info;
-
return EXTRACTOR_UNZIP_OK;
}
+/**
+ * Callback to perform read operation using LE API.
+ * Note that partial reads are not allowed.
+ *
+ * @param opaque the 'struct EXTRACTOR_ExtractContext'
+ * @param buf where to write bytes read
+ * @param size number of bytes desired
+ * @return number of bytes copied to buf
+ */
static uLong
ec_read_file_func (voidpf opaque,
void* buf,
@@ -1283,17 +1340,29 @@ ec_read_file_func (voidpf opaque,
struct EXTRACTOR_ExtractContext *ec = opaque;
void *ptr;
ssize_t ret;
+ uLong done;
- ret = ec->read (ec->cls,
- &ptr,
- size);
- if (ret > 0)
- memcpy (buf, ptr, ret);
- // FIXME: partial reads are not allowed, need to possibly read more
- return ret;
+ done = 0;
+ while (done < size)
+ {
+ ret = ec->read (ec->cls,
+ &ptr,
+ size);
+ if (ret <= 0)
+ return done;
+ memcpy (buf + done, ptr, ret);
+ done += ret;
+ }
+ return done;
}
+/**
+ * Callback to obtain current offset in file using LE API.
+ *
+ * @param opaque the 'struct EXTRACTOR_ExtractContext'
+ * @return current offset in file, -1 on error
+ */
static long
ec_tell_file_func (voidpf opaque)
{
@@ -1303,6 +1372,14 @@ ec_tell_file_func (voidpf opaque)
}
+/**
+ * Callback to perform seek operation using LE API.
+ *
+ * @param opaque the 'struct EXTRACTOR_ExtractContext'
+ * @param offset where to seek
+ * @param origin relative to where should we seek
+ * @return EXTRACTOR_UNZIP_OK on success
+ */
static long
ec_seek_file_func (voidpf opaque,
uLong offset,
@@ -1326,14 +1403,14 @@ ec_seek_file_func (voidpf opaque,
struct EXTRACTOR_UnzipFile *
EXTRACTOR_common_unzip_open (struct EXTRACTOR_ExtractContext *ec)
{
- struct EXTRACTOR_UnzipFileFuncDefs io;
+ struct FileFuncDefs ffd;
- io.zread_file = &ec_read_file_func;
- io.ztell_file = &ec_tell_file_func;
- io.zseek_file = &ec_seek_file_func;
- io.opaque = ec;
+ ffd.zread_file = &ec_read_file_func;
+ ffd.ztell_file = &ec_tell_file_func;
+ ffd.zseek_file = &ec_seek_file_func;
+ ffd.opaque = ec;
- return EXTRACTOR_common_unzip_open2 (&io);
+ return unzip_open_using_ffd (&ffd);
}
/* end of unzip.c */
diff --git a/src/common/unzip.h b/src/common/unzip.h
@@ -208,10 +208,21 @@ EXTRACTOR_common_unzip_open (struct EXTRACTOR_ExtractContext *ec);
/**
- * Close a ZipFile. If there is files inside the .Zip opened with
- * EXTRACTOR_common_unzip_open_current_file, these files MUST be
- * closed with EXTRACTOR_common_unzip_close_current_file before
- * calling EXTRACTOR_common_unzip_close.
+ * Obtain the global comment from a ZIP file.
+ *
+ * @param file unzip file to inspect
+ * @param comment where to copy the comment
+ * @param comment_len maximum number of bytes available in comment
+ * @return EXTRACTOR_UNZIP_OK on success
+ */
+int
+EXTRACTOR_common_unzip_get_global_comment (struct EXTRACTOR_UnzipFile *file,
+ char *comment,
+ size_t comment_len);
+
+
+/**
+ * Close a ZipFile.
*
* @param file zip file to close
* @return EXTRACTOR_UNZIP_OK if there is no problem.
@@ -263,6 +274,7 @@ EXTRACTOR_common_unzip_go_find_local_file (struct EXTRACTOR_UnzipFile *file,
* No preparation of the structure is needed.
*
* @param file zipfile to manipulate
+ * @param pfile_info file information to initialize
* @param szFileName where to write the name of the current file
* @param fileNameBufferSize number of bytes available in szFileName
* @param extraField where to write extra data
diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am
@@ -30,7 +30,9 @@ EXTRA_DIST = template_extractor.c \
testdata/ole2_starwriter40.sdw \
testdata/ole2_blair.doc \
testdata/ole2_excel.xls \
- testdata/png_image.png
+ testdata/png_image.png \
+ testdata/odf_cg.odt \
+ testdata/deb_bzip2.deb
if HAVE_VORBISFILE
PLUGIN_OGG=libextractor_ogg.la
@@ -77,13 +79,23 @@ PLUGIN_GSF=libextractor_ole2.la
TEST_GSF=test_ole2
endif
+if HAVE_ZLIB
+PLUGIN_ZLIB=libextractor_deb.la
+TEST_ZLIB=test_deb
+endif
plugin_LTLIBRARIES = \
libextractor_it.la \
+ libextractor_nsf.la \
+ libextractor_nsfe.la \
+ libextractor_odf.la \
libextractor_png.la \
libextractor_xm.la \
libextractor_s3m.la \
+ libextractor_sid.la \
libextractor_wav.la \
+ libextractor_zip.la \
+ $(PLUGIN_ZLIB) \
$(PLUGIN_OGG) \
$(PLUGIN_MIME) \
$(PLUGIN_GIF) \
@@ -103,6 +115,9 @@ check_PROGRAMS = \
test_it \
test_s3m \
test_png \
+ test_odf \
+ test_zip \
+ $(TEST_ZLIB) \
$(TEST_OGG) \
$(TEST_MIME) \
$(TEST_GIF) \
@@ -133,6 +148,55 @@ libextractor_xm_la_LDFLAGS = \
$(PLUGINFLAGS)
+libextractor_deb_la_SOURCES = \
+ deb_extractor.c
+libextractor_deb_la_LDFLAGS = \
+ $(PLUGINFLAGS) -lz
+
+test_deb_SOURCES = \
+ test_deb.c
+test_deb_LDADD = \
+ $(top_builddir)/src/plugins/libtest.la
+
+
+libextractor_nsf_la_SOURCES = \
+ nsf_extractor.c
+libextractor_nsf_la_LDFLAGS = \
+ $(PLUGINFLAGS)
+
+
+libextractor_nsfe_la_SOURCES = \
+ nsfe_extractor.c
+libextractor_nsfe_la_LDFLAGS = \
+ $(PLUGINFLAGS)
+
+
+libextractor_odf_la_SOURCES = \
+ odf_extractor.c
+libextractor_odf_la_LDFLAGS = \
+ $(PLUGINFLAGS)
+libextractor_odf_la_LIBADD = \
+ $(top_builddir)/src/common/libextractor_common.la
+
+test_odf_SOURCES = \
+ test_odf.c
+test_odf_LDADD = \
+ $(top_builddir)/src/plugins/libtest.la
+
+
+libextractor_zip_la_SOURCES = \
+ zip_extractor.c
+libextractor_zip_la_LDFLAGS = \
+ $(PLUGINFLAGS)
+libextractor_zip_la_LIBADD = \
+ $(top_builddir)/src/common/libextractor_common.la
+
+test_zip_SOURCES = \
+ test_zip.c
+test_zip_LDADD = \
+ $(top_builddir)/src/plugins/libtest.la
+
+
libextractor_png_la_SOURCES = \
png_extractor.c
libextractor_png_la_LDFLAGS = \
@@ -157,6 +221,11 @@ test_it_LDADD = \
$(top_builddir)/src/plugins/libtest.la
+libextractor_sid_la_SOURCES = \
+ sid_extractor.c
+libextractor_sid_la_LDFLAGS = \
+ $(PLUGINFLAGS)
+
libextractor_s3m_la_SOURCES = \
s3m_extractor.c
libextractor_s3m_la_LDFLAGS = \
diff --git a/src/plugins/deb_extractor.c b/src/plugins/deb_extractor.c
@@ -1,10 +1,10 @@
/*
This file is part of libextractor.
- (C) 2002, 2003, 2004 Vidyut Samanta and Christian Grothoff
+ (C) 2002, 2003, 2004, 2012 Vidyut Samanta and Christian Grothoff
libextractor is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
libextractor is distributed in the hope that it will be useful, but
@@ -17,12 +17,11 @@
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
-
-#include "platform.h"
-#include "extractor.h"
-#include <zlib.h>
-
-/*
+/**
+ * @file plugins/deb_extractor.c
+ * @brief plugin to support Debian archives
+ * @author Christian Grothoff
+ *
* The .deb is an ar-chive file. It contains a tar.gz file
* named "control.tar.gz" which then contains a file 'control'
* that has the meta-data. And which variant of the various
@@ -33,14 +32,33 @@
* http://lists.debian.org/debian-policy/2003/12/msg00000.html
* http://www.opengroup.org/onlinepubs/009695399/utilities/ar.html
*/
+#include "platform.h"
+#include "extractor.h"
+#include <zlib.h>
+
+
+/**
+ * Maximum file size we allow for control.tar.gz files.
+ * This is a sanity check to avoid allocating huge amounts
+ * of memory.
+ */
+#define MAX_CONTROL_SIZE (1024 * 1024)
+/**
+ * Re-implementation of 'strndup'.
+ *
+ * @param str string to duplicate
+ * @param n maximum number of bytes to copy
+ * @return NULL on error, otherwise 0-terminated copy of 'str'
+ * with at most n characters
+ */
static char *
stndup (const char *str, size_t n)
{
char *tmp;
- tmp = malloc (n + 1);
- if (tmp == NULL)
+
+ if (NULL == (tmp = malloc (n + 1)))
return NULL;
tmp[n] = '\0';
memcpy (tmp, str, n);
@@ -48,15 +66,29 @@ stndup (const char *str, size_t n)
}
-
-typedef struct
+/**
+ * Entry in the mapping from control data to LE types.
+ */
+struct Matches
{
+ /**
+ * Key in the Debian control file.
+ */
const char *text;
+
+ /**
+ * Corresponding type in LE.
+ */
enum EXTRACTOR_MetaType type;
-} Matches;
+};
+
-/* see also: "man 5 deb-control" */
-static Matches tmap[] = {
+/**
+ * Map from deb-control entries to LE types.
+ *
+ * see also: "man 5 deb-control"
+ */
+static struct Matches tmap[] = {
{"Package: ", EXTRACTOR_METATYPE_PACKAGE_NAME},
{"Version: ", EXTRACTOR_METATYPE_PACKAGE_VERSION},
{"Section: ", EXTRACTOR_METATYPE_SECTION},
@@ -79,7 +111,13 @@ static Matches tmap[] = {
/**
- * Process the control file.
+ * Process the "control" file from the control.tar.gz
+ *
+ * @param data decompressed control data
+ * @param size number of bytes in data
+ * @param proc function to call with meta data
+ * @param proc_cls closure for 'proc'
+ * @return 0 to continue extracting, 1 if we are done
*/
static int
processControl (const char *data,
@@ -90,62 +128,52 @@ processControl (const char *data,
size_t pos;
char *key;
char *val;
-
+ size_t colon;
+ size_t eol;
+ unsigned int i;
+
pos = 0;
while (pos < size)
{
- size_t colon;
- size_t eol;
- int i;
-
- colon = pos;
- while (data[colon] != ':')
- {
- if ((colon > size) || (data[colon] == '\n'))
- return 0;
- colon++;
- }
+ for (colon = pos; ':' != data[colon]; colon++)
+ if ((colon > size) || ('\n' == data[colon]))
+ return 0;
colon++;
while ((colon < size) && (isspace ((unsigned char) data[colon])))
colon++;
eol = colon;
while ((eol < size) &&
- ((data[eol] != '\n') ||
- ((eol + 1 < size) && (data[eol + 1] == ' '))))
+ (('\n' != data[eol]) ||
+ ((eol + 1 < size) && (' ' == data[eol + 1]))))
eol++;
if ((eol == colon) || (eol > size))
return 0;
- key = stndup (&data[pos], colon - pos);
- if (key == NULL)
+ if (NULL == (key = stndup (&data[pos], colon - pos)))
return 0;
- i = 0;
- while (tmap[i].text != NULL)
+ for (i = 0; NULL != tmap[i].text; i++)
{
- if (0 == strcmp (key, tmap[i].text))
- {
- val = stndup (&data[colon], eol - colon);
- if (val == NULL)
- {
- free (key);
- return 0;
- }
- if (0 != proc (proc_cls,
- "deb",
- tmap[i].type,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- val,
- strlen(val) + 1))
- {
- free (val);
- free (key);
- return 1;
- }
+ if (0 != strcmp (key, tmap[i].text))
+ continue;
+ if (NULL == (val = stndup (&data[colon], eol - colon)))
+ {
+ free (key);
+ return 0;
+ }
+ if (0 != proc (proc_cls,
+ "deb",
+ tmap[i].type,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ val,
+ strlen(val) + 1))
+ {
free (val);
- break;
- }
- i++;
- }
+ free (key);
+ return 1;
+ }
+ free (val);
+ break;
+ }
free (key);
pos = eol + 1;
}
@@ -153,62 +181,142 @@ processControl (const char *data,
}
-typedef struct
+/**
+ * Header of an entry in a TAR file.
+ */
+struct TarHeader
{
+ /**
+ * Filename.
+ */
char name[100];
+
+ /**
+ * File access modes.
+ */
char mode[8];
+
+ /**
+ * Owner of the file.
+ */
char userId[8];
+
+ /**
+ * Group of the file.
+ */
char groupId[8];
+
+ /**
+ * Size of the file, in octal.
+ */
char filesize[12];
+
+ /**
+ * Last modification time.
+ */
char lastModTime[12];
+
+ /**
+ * Checksum of the file.
+ */
char chksum[8];
+
+ /**
+ * Is the file a link?
+ */
char link;
+
+ /**
+ * Destination of the link.
+ */
char linkName[100];
-} TarHeader;
+};
+
-typedef struct
+/**
+ * Extended TAR header for USTar format.
+ */
+struct USTarHeader
{
- TarHeader tar;
+ /**
+ * Original TAR header.
+ */
+ struct TarHeader tar;
+
+ /**
+ * Additinal magic for USTar.
+ */
char magic[6];
+
+ /**
+ * Format version.
+ */
char version[2];
+
+ /**
+ * User name.
+ */
char uname[32];
+
+ /**
+ * Group name.
+ */
char gname[32];
+
+ /**
+ * Device major number.
+ */
char devmajor[8];
+
+ /**
+ * Device minor number.
+ */
char devminor[8];
+
+ /**
+ * Unknown (padding?).
+ */
char prefix[155];
-} USTarHeader;
+};
+
/**
* Process the control.tar file.
+ *
+ * @param data the deflated control.tar file data
+ * @param size number of bytes in data
+ * @param proc function to call with meta data
+ * @param proc_cls closure for 'proc'
+ * @return 0 to continue extracting, 1 if we are done
*/
static int
processControlTar (const char *data,
- const size_t size,
+ size_t size,
EXTRACTOR_MetaDataProcessor proc,
void *proc_cls)
{
- TarHeader *tar;
- USTarHeader *ustar;
+ struct TarHeader *tar;
+ struct USTarHeader *ustar;
size_t pos;
pos = 0;
- while (pos + sizeof (TarHeader) < size)
+ while (pos + sizeof (struct TarHeader) < size)
{
unsigned long long fsize;
char buf[13];
- tar = (TarHeader *) & data[pos];
- if (pos + sizeof (USTarHeader) < size)
+ tar = (struct TarHeader *) & data[pos];
+ if (pos + sizeof (struct USTarHeader) < size)
{
- ustar = (USTarHeader *) & data[pos];
+ ustar = (struct USTarHeader *) & data[pos];
if (0 == strncmp ("ustar", &ustar->magic[0], strlen ("ustar")))
- pos += 512; /* sizeof(USTarHeader); */
+ pos += 512; /* sizeof (struct USTarHeader); */
else
- pos += 257; /* sizeof(TarHeader); minus gcc alignment... */
+ pos += 257; /* sizeof (struct TarHeader); minus gcc alignment... */
}
else
{
- pos += 257; /* sizeof(TarHeader); minus gcc alignment... */
+ pos += 257; /* sizeof (struct TarHeader); minus gcc alignment... */
}
memcpy (buf, &tar->filesize[0], 12);
@@ -220,9 +328,10 @@ processControlTar (const char *data,
if (0 == strncmp (&tar->name[0], "./control", strlen ("./control")))
{
+ /* found the 'control' file we were looking for */
return processControl (&data[pos], fsize, proc, proc_cls);
}
- if ((fsize & 511) != 0)
+ if (0 != (fsize & 511))
fsize = (fsize | 511) + 1; /* round up! */
if (pos + fsize < pos)
return 0;
@@ -231,137 +340,184 @@ processControlTar (const char *data,
return 0;
}
-#define MAX_CONTROL_SIZE (1024 * 1024)
-
-static voidpf
-Emalloc (voidpf opaque, uInt items, uInt size)
-{
- if (SIZE_MAX / size <= items)
- return NULL;
- return malloc (size * items);
-}
-
-static void
-Efree (voidpf opaque, voidpf ptr)
-{
- free (ptr);
-}
/**
* Process the control.tar.gz file.
+ *
+ * @param ec extractor context with control.tar.gz at current read position
+ * @param size number of bytes in the control file
+ * @return 0 to continue extracting, 1 if we are done
*/
static int
-processControlTGZ (const unsigned char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+processControlTGZ (struct EXTRACTOR_ExtractContext *ec,
+ unsigned long long size)
{
uint32_t bufSize;
char *buf;
+ void *data;
+ unsigned char *cdata;
z_stream strm;
int ret;
+ ssize_t sret;
+ unsigned long long off;
- bufSize = data[size - 4] + (data[size - 3] << 8) + (data[size - 2] << 16) + (data[size - 1] << 24);
- if (bufSize > MAX_CONTROL_SIZE)
+ if (size > MAX_CONTROL_SIZE)
+ return 0;
+ if (NULL == (cdata = malloc (size)))
return 0;
+ off = 0;
+ while (off < size)
+ {
+ if (0 >= (sret = ec->read (ec->cls, &data, size - off)))
+ {
+ free (cdata);
+ return 0;
+ }
+ memcpy (&cdata[off], data, sret);
+ off += sret;
+ }
+ bufSize = cdata[size - 4] + (cdata[size - 3] << 8) + (cdata[size - 2] << 16) + (cdata[size - 1] << 24);
+ if (bufSize > MAX_CONTROL_SIZE)
+ {
+ free (cdata);
+ return 0;
+ }
+ if (NULL == (buf = malloc (bufSize)))
+ {
+ free (cdata);
+ return 0;
+ }
+ ret = 0;
memset (&strm, 0, sizeof (z_stream));
strm.next_in = (Bytef *) data;
strm.avail_in = size;
- strm.total_in = 0;
- strm.zalloc = &Emalloc;
- strm.zfree = &Efree;
- strm.opaque = NULL;
-
if (Z_OK == inflateInit2 (&strm, 15 + 32))
- {
- buf = malloc (bufSize);
- if (buf == NULL)
- {
- inflateEnd (&strm);
- return 0;
- }
+ {
strm.next_out = (Bytef *) buf;
strm.avail_out = bufSize;
inflate (&strm, Z_FINISH);
if (strm.total_out > 0)
- {
- ret = processControlTar (buf, strm.total_out, proc, proc_cls);
- inflateEnd (&strm);
- free (buf);
- return ret;
- }
- free (buf);
+ ret = processControlTar (buf, strm.total_out,
+ ec->proc, ec->cls);
inflateEnd (&strm);
}
- return 0;
+ free (buf);
+ free (cdata);
+ return ret;
}
-typedef struct
+
+/**
+ * Header of an object in an "AR"chive file.
+ */
+struct ObjectHeader
{
+ /**
+ * Name of the file.
+ */
char name[16];
+
+ /**
+ * Last modification time for the file.
+ */
char lastModTime[12];
+
+ /**
+ * User ID of the owner.
+ */
char userId[6];
+
+ /**
+ * Group ID of the owner.
+ */
char groupId[6];
+
+ /**
+ * File access modes.
+ */
char modeInOctal[8];
+
+ /**
+ * Size of the file (as decimal string)
+ */
char filesize[10];
+
+ /**
+ * Tailer of the object header ("`\n")
+ */
char trailer[2];
-} ObjectHeader;
+};
-int
-EXTRACTOR_deb_extract (const char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls,
- const char *options)
+/**
+ * Main entry method for the DEB extraction plugin.
+ *
+ * @param ec extraction context provided to the plugin
+ */
+void
+EXTRACTOR_deb_extract_method (struct EXTRACTOR_ExtractContext *ec)
{
- size_t pos;
+ uint64_t pos;
int done = 0;
- ObjectHeader *hdr;
- unsigned long long fsize;
+ const struct ObjectHeader *hdr;
+ uint64_t fsize;
+ unsigned long long csize;
char buf[11];
-
- if (size < 128)
- return 0;
- if (0 != strncmp ("!<arch>\n", data, strlen ("!<arch>\n")))
- return 0;
- pos = strlen ("!<arch>\n");
- while (pos + sizeof (ObjectHeader) < size)
+ void *data;
+
+ fsize = ec->get_size (ec->cls);
+ if (fsize < 128)
+ return;
+ if (8 !=
+ ec->read (ec->cls, &data, 8))
+ return;
+ if (0 != strncmp ("!<arch>\n", data, 8))
+ return;
+ pos = 8;
+ while (pos + sizeof (struct ObjectHeader) < fsize)
{
- hdr = (ObjectHeader *) & data[pos];
+ if (pos !=
+ ec->seek (ec->cls, pos, SEEK_SET))
+ return;
+ if (sizeof (struct ObjectHeader) !=
+ ec->read (ec->cls, &data, sizeof (struct ObjectHeader)))
+ return;
+ hdr = data;
if (0 != strncmp (&hdr->trailer[0], "`\n", 2))
- return 0;
+ return;
memcpy (buf, &hdr->filesize[0], 10);
buf[10] = '\0';
- if (1 != sscanf (buf, "%10llu", &fsize))
- return 0;
- pos += sizeof (ObjectHeader);
- if ((pos + fsize > size) || (fsize > size) || (pos + fsize < pos))
- return 0;
+ if (1 != sscanf (buf, "%10llu", &csize))
+ return;
+ pos += sizeof (struct ObjectHeader);
+ if ((pos + csize > fsize) || (csize > fsize) || (pos + csize < pos))
+ return;
if (0 == strncmp (&hdr->name[0],
- "control.tar.gz", strlen ("control.tar.gz")))
+ "control.tar.gz",
+ strlen ("control.tar.gz")))
{
- if (0 != processControlTGZ ((const unsigned char *) &data[pos],
- fsize, proc, proc_cls))
- return 1;
+ if (0 != processControlTGZ (ec,
+ csize))
+ return;
done++;
}
if (0 == strncmp (&hdr->name[0],
"debian-binary", strlen ("debian-binary")))
{
- if (0 != proc (proc_cls,
- "deb",
- EXTRACTOR_METATYPE_MIMETYPE,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- "application/x-debian-package",
- strlen ("application/x-debian-package")+1))
- return 1;
+ if (0 != ec->proc (ec->cls,
+ "deb",
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "application/x-debian-package",
+ strlen ("application/x-debian-package")+1))
+ return;
done++;
}
- pos += fsize;
- if (done == 2)
+ pos += csize;
+ if (2 == done)
break; /* no need to process the rest of the archive */
}
- return 0;
}
+
+/* end of deb_extractor.c */
diff --git a/src/plugins/nsf_extractor.c b/src/plugins/nsf_extractor.c
@@ -1,10 +1,10 @@
/*
* This file is part of libextractor.
- * (C) 2006, 2009 Toni Ruottu
+ * (C) 2006, 2009, 2012 Toni Ruottu and Christian Grothoff
*
* libextractor is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2, or (at your
+ * by the Free Software Foundation; either version 3, or (at your
* option) any later version.
*
* libextractor is distributed in the hope that it will be useful, but
@@ -18,21 +18,22 @@
* Boston, MA 02111-1307, USA.
*
*/
-
+/**
+ * @file plugins/nsf_extractor.c
+ * @brief plugin to support Nes Sound Format files
+ * @author Toni Ruottu
+ * @author Christian Grothoff
+ */
#include "platform.h"
#include "extractor.h"
-#include "convert.h"
-#define HEADER_SIZE 0x80
/* television system flags */
-
#define PAL_FLAG 0x01
#define DUAL_FLAG 0x02
/* sound chip flags */
-
#define VRCVI_FLAG 0x01
#define VRCVII_FLAG 0x02
#define FDS_FLAG 0x04
@@ -40,43 +41,108 @@
#define NAMCO_FLAG 0x10
#define SUNSOFT_FLAG 0x20
-#define UINT16 unsigned short
+/**
+ * Header of an NSF file.
+ */
struct header
{
+ /**
+ * Magic code.
+ */
char magicid[5];
+
+ /**
+ * NSF version number.
+ */
char nsfversion;
- char songs;
- char firstsong;
- UINT16 loadaddr;
- UINT16 initaddr;
- UINT16 playaddr;
+
+ /**
+ * Number of songs.
+ */
+ unsigned char songs;
+
+ /**
+ * Starting song.
+ */
+ unsigned char firstsong;
+
+ /**
+ * Unknown.
+ */
+ uint16_t loadaddr;
+
+ /**
+ * Unknown.
+ */
+ uint16_t initaddr;
+
+ /**
+ * Unknown.
+ */
+ uint16_t playaddr;
+
+ /**
+ * Album title.
+ */
char title[32];
+
+ /**
+ * Artist name.
+ */
char artist[32];
+
+ /**
+ * Copyright information.
+ */
char copyright[32];
- UINT16 ntscspeed;
+
+ /**
+ * Unknown.
+ */
+ uint16_t ntscspeed;
+
+ /**
+ * Unknown.
+ */
char bankswitch[8];
- UINT16 palspeed;
+
+ /**
+ * Unknown.
+ */
+ uint16_t palspeed;
+
+ /**
+ * Flags for TV encoding.
+ */
char tvflags;
+
+ /**
+ * Flags about the decoder chip.
+ */
char chipflags;
};
-#define ADD(s,t) do { if (0 != proc (proc_cls, "nsf", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen(s)+1)) return 1; } while (0)
+
+/**
+ * Give metadata to LE; return if 'proc' returns non-zero.
+ *
+ * @param s metadata value as UTF8
+ * @param t metadata type to use
+ */
+#define ADD(s,t) do { if (0 != ec->proc (ec->cls, "nsf", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen (s) + 1)) return; } while (0)
-/* "extract" keyword from a Nes Sound Format file
+/**
+ * "extract" meta data from a Nes Sound Format file
*
- * NSF specification version 1.61 was used,
- * while this piece of software was originally
- * written.
+ * NSF specification version 1.61 was used, while this piece of
+ * software was originally written.
*
+ * @param ec extraction context
*/
-int
-EXTRACTOR_nsf_extract (const unsigned char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls,
- const char *options)
+void
+EXTRACTOR_nsf_extract_method (struct EXTRACTOR_ExtractContext *ec)
{
char album[33];
char artist[33];
@@ -85,12 +151,18 @@ EXTRACTOR_nsf_extract (const unsigned char *data,
char startingsong[32];
char nsfversion[32];
const struct header *head;
-
- if (size < HEADER_SIZE)
- return 0;
- head = (const struct header *) data;
+ void *data;
+
+ if (sizeof (struct header) >
+ ec->read (ec->cls,
+ &data,
+ sizeof (struct header)))
+ return;
+ head = data;
+
+ /* Check "magic" id bytes */
if (memcmp (head->magicid, "NESM\x1a", 5))
- return 0;
+ return;
ADD ("audio/x-nsf", EXTRACTOR_METATYPE_MIMETYPE);
snprintf (nsfversion,
sizeof(nsfversion),
@@ -100,50 +172,48 @@ EXTRACTOR_nsf_extract (const unsigned char *data,
snprintf (songs,
sizeof(songs),
"%d",
- head->songs);
+ (int) head->songs);
ADD (songs, EXTRACTOR_METATYPE_SONG_COUNT);
snprintf (startingsong,
sizeof(startingsong),
"%d",
- head->firstsong);
+ (int) head->firstsong);
ADD (startingsong, EXTRACTOR_METATYPE_STARTING_SONG);
-
memcpy (&album, head->title, 32);
album[32] = '\0';
ADD (album, EXTRACTOR_METATYPE_ALBUM);
-
memcpy (&artist, head->artist, 32);
artist[32] = '\0';
ADD (artist, EXTRACTOR_METATYPE_ARTIST);
-
memcpy (©right, head->copyright, 32);
copyright[32] = '\0';
ADD (copyright, EXTRACTOR_METATYPE_COPYRIGHT);
- if (head->tvflags & DUAL_FLAG)
+ if (0 != (head->tvflags & DUAL_FLAG))
{
ADD ("PAL/NTSC", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
}
else
{
- if (head->tvflags & PAL_FLAG)
+ if (0 != (head->tvflags & PAL_FLAG))
ADD ("PAL", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
else
ADD ("NTSC", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
}
/* Detect Extra Sound Chips needed to play the files */
- if (head->chipflags & VRCVI_FLAG)
+ if (0 != (head->chipflags & VRCVI_FLAG))
ADD ("VRCVI", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (head->chipflags & VRCVII_FLAG)
+ if (0 != (head->chipflags & VRCVII_FLAG))
ADD ("VRCVII", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (head->chipflags & FDS_FLAG)
+ if (0 != (head->chipflags & FDS_FLAG))
ADD ("FDS Sound", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (head->chipflags & MMC5_FLAG)
+ if (0 != (head->chipflags & MMC5_FLAG))
ADD ("MMC5 audio", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (head->chipflags & NAMCO_FLAG)
+ if (0 != (head->chipflags & NAMCO_FLAG))
ADD ("Namco 106", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (head->chipflags & SUNSOFT_FLAG)
+ if (0 != (head->chipflags & SUNSOFT_FLAG))
ADD ("Sunsoft FME-07", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- return 0;
}
+
+/* end of nsf_extractor.c */
diff --git a/src/plugins/nsfe_extractor.c b/src/plugins/nsfe_extractor.c
@@ -1,10 +1,10 @@
/*
* This file is part of libextractor.
- * (C) 2007, 2009 Toni Ruottu
+ * (C) 2007, 2009, 2012 Toni Ruottu and Christian Grothoff
*
* libextractor is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2, or (at your
+ * by the Free Software Foundation; either version 3, or (at your
* option) any later version.
*
* libextractor is distributed in the hope that it will be useful, but
@@ -18,20 +18,22 @@
* Boston, MA 02111-1307, USA.
*
*/
-
+/**
+ * @file plugins/nsfe_extractor.c
+ * @brief plugin to support Nes Sound Format files
+ * @author Toni Ruottu
+ * @author Christian Grothoff
+ */
#include "platform.h"
#include "extractor.h"
#include "convert.h"
-#define HEADER_SIZE 0x04
/* television system flags */
-
#define PAL_FLAG 0x01
#define DUAL_FLAG 0x02
/* sound chip flags */
-
#define VRCVI_FLAG 0x01
#define VRCVII_FLAG 0x02
#define FDS_FLAG 0x04
@@ -39,29 +41,26 @@
#define NAMCO_FLAG 0x10
#define SUNSOFT_FLAG 0x20
-#define UINT16 unsigned short
-
+/**
+ * "Header" of an NSFE file.
+ */
struct header
{
char magicid[4];
};
-struct infochunk
-{
- UINT16 loadaddr;
- UINT16 initaddr;
- UINT16 playaddr;
- char tvflags;
- char chipflags;
- char songs;
- char firstsong;
-};
-static int
+/**
+ * Read an unsigned integer at the current offset.
+ *
+ * @param data input data to parse
+ * @return parsed integer
+ */
+static uint32_t
nsfeuint (const char *data)
{
int i;
- int value = 0;
+ uint32_t value = 0;
for (i = 3; i > 0; i--)
{
@@ -73,8 +72,17 @@ nsfeuint (const char *data)
}
+/**
+ * Copy string starting at 'data' with at most
+ * 'size' bytes. (strndup).
+ *
+ * @param data input data to copy
+ * @param size number of bytes in 'data'
+ * @return copy of the string at data
+ */
static char *
-nsfestring (const char *data, size_t size)
+nsfestring (const char *data,
+ size_t size)
{
char *s;
size_t length;
@@ -83,105 +91,210 @@ nsfestring (const char *data, size_t size)
while ( (length < size) &&
(data[length] != '\0') )
length++;
- s = malloc (length + 1);
- if (s == NULL)
+ if (NULL == (s = malloc (length + 1)))
return NULL;
- strncpy (s, data, length);
- s[strlen (data)] = '\0';
+ memcpy (s, data, length);
+ s[length] = '\0';
return s;
}
-#define ADD(s,t) do { if (0 != proc (proc_cls, "nsfe", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen(s)+1)) return 1; } while (0)
-#define ADDF(s,t) do { if (0 != proc (proc_cls, "nsfe", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen(s)+1)) { free(s); return 1; } free (s); } while (0)
+/**
+ * Give metadata to LE; return if 'proc' returns non-zero.
+ *
+ * @param s metadata value as UTF8
+ * @param t metadata type to use
+ */
+#define ADD(s,t) do { if (0 != ec->proc (ec->cls, "nsfe", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen (s) + 1)) return 1; } while (0)
+
+
+/**
+ * Give metadata to LE; return if 'proc' returns non-zero.
+ *
+ * @param s metadata value as UTF8, free at the end
+ * @param t metadata type to use
+ */
+#define ADDF(s,t) do { if (0 != ec->proc (ec->cls, "nsfe", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen (s) + 1)) { free (s); return 1; } free (s); } while (0)
+
+
+/**
+ * Format of an 'INFO' chunk. Last two bytes are optional.
+ */
+struct infochunk
+{
+ /**
+ * Unknown.
+ */
+ uint16_t loadaddr;
+
+ /**
+ * Unknown.
+ */
+ uint16_t initaddr;
+
+ /**
+ * Unknown.
+ */
+ uint16_t playaddr;
+
+ /**
+ * TV encoding flags.
+ */
+ char tvflags;
+ /**
+ * Chipset encoding flags.
+ */
+ char chipflags;
+
+ /**
+ * Number of songs.
+ */
+ unsigned char songs;
+
+ /**
+ * Starting song.
+ */
+ unsigned char firstsong;
+};
+
+
+/**
+ * Extract data from the INFO chunk.
+ *
+ * @param ec extraction context
+ * @param size number of bytes in INFO chunk
+ * @return 0 to continue extrating
+ */
static int
-libextractor_nsfe_info_extract(const char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+info_extract (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t size)
{
+ void *data;
const struct infochunk *ichunk;
char songs[32];
- if (size < 8)
+ if (size < 8)
return 0;
- ichunk = (const struct infochunk *) data;
- if (ichunk->tvflags & DUAL_FLAG)
+ if (size >
+ ec->read (ec->cls,
+ &data,
+ size))
+ return 1;
+ ichunk = data;
+
+ if (0 != (ichunk->tvflags & DUAL_FLAG))
{
ADD ("PAL/NTSC", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
}
else
{
- if (ichunk->tvflags & PAL_FLAG)
+ if (0 != (ichunk->tvflags & PAL_FLAG))
ADD ("PAL", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
else
ADD ("NTSC", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
}
- if (ichunk->chipflags & VRCVI_FLAG)
+ if (0 != (ichunk->chipflags & VRCVI_FLAG))
ADD ("VRCVI", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (ichunk->chipflags & VRCVII_FLAG)
+ if (0 != (ichunk->chipflags & VRCVII_FLAG))
ADD ("VRCVII", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (ichunk->chipflags & FDS_FLAG)
+ if (0 != (ichunk->chipflags & FDS_FLAG))
ADD ("FDS Sound", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (ichunk->chipflags & MMC5_FLAG)
+ if (0 != (ichunk->chipflags & MMC5_FLAG))
ADD ("MMC5 audio", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (ichunk->chipflags & NAMCO_FLAG)
+ if (0 != (ichunk->chipflags & NAMCO_FLAG))
ADD ("Namco 106", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (ichunk->chipflags & SUNSOFT_FLAG)
+ if (0 != (ichunk->chipflags & SUNSOFT_FLAG))
ADD ("Sunsoft FME-07", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- if (size < 9)
+
+ if (size < sizeof (struct infochunk))
{
ADD ("1", EXTRACTOR_METATYPE_SONG_COUNT);
return 0;
}
snprintf (songs,
- sizeof(songs),
+ sizeof (songs),
"%d",
ichunk->songs);
ADD (songs, EXTRACTOR_METATYPE_SONG_COUNT);
+ snprintf (songs,
+ sizeof (songs),
+ "%d",
+ ichunk->firstsong);
+ ADD (songs, EXTRACTOR_METATYPE_STARTING_SONG);
return 0;
}
+/**
+ * Extract data from the TLBL chunk.
+ *
+ * @param ec extraction context
+ * @param size number of bytes in TLBL chunk
+ * @return 0 to continue extrating
+ */
static int
-libextractor_nsfe_tlbl_extract(const char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
-
+tlbl_extract (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t size)
{
char *title;
ssize_t left;
size_t length;
-
- for (left = size; left > 0; left -= length)
+ void *data;
+ const char *cdata;
+
+ if (size >
+ ec->read (ec->cls,
+ &data,
+ size))
+ return 1;
+ cdata = data;
+
+ left = size;
+ while (left > 0)
{
- title = nsfestring (&data[size - left], left);
- if (title == NULL)
- return 0;
+ title = nsfestring (&cdata[size - left], left);
+ if (NULL == title)
+ return 0;
length = strlen (title) + 1;
ADDF (title, EXTRACTOR_METATYPE_TITLE);
+ left -= length;
}
return 0;
}
+
+/**
+ * Extract data from the AUTH chunk.
+ *
+ * @param ec extraction context
+ * @param size number of bytes in AUTH chunk
+ * @return 0 to continue extrating
+ */
static int
-libextractor_nsfe_auth_extract (const char *data, size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+auth_extract (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t size)
{
char *album;
char *artist;
char *copyright;
char *ripper;
- int left = size;
+ uint32_t left = size;
+ void *data;
+ const char *cdata;
if (left < 1)
return 0;
- album = nsfestring (&data[size - left], left);
- if (album != NULL)
+ if (size >
+ ec->read (ec->cls,
+ &data,
+ size))
+ return 1;
+ cdata = data;
+
+ album = nsfestring (&cdata[size - left], left);
+ if (NULL != album)
{
left -= (strlen (album) + 1);
ADDF (album, EXTRACTOR_METATYPE_ALBUM);
@@ -189,8 +302,8 @@ libextractor_nsfe_auth_extract (const char *data, size_t size,
return 0;
}
- artist = nsfestring (&data[size - left], left);
- if (artist != NULL)
+ artist = nsfestring (&cdata[size - left], left);
+ if (NULL != artist)
{
left -= (strlen (artist) + 1);
ADDF (artist, EXTRACTOR_METATYPE_ARTIST);
@@ -198,67 +311,78 @@ libextractor_nsfe_auth_extract (const char *data, size_t size,
return 0;
}
- copyright = nsfestring (&data[size - left], left);
- if (copyright != NULL)
+ copyright = nsfestring (&cdata[size - left], left);
+ if (NULL != copyright)
{
left -= (strlen (copyright) + 1);
ADDF (copyright, EXTRACTOR_METATYPE_COPYRIGHT);
if (left < 1)
return 0;
}
- ripper = nsfestring (&data[size - left], left);
- if (ripper != NULL)
+ ripper = nsfestring (&cdata[size - left], left);
+ if (NULL != ripper)
ADDF (ripper, EXTRACTOR_METATYPE_RIPPER);
return 0;
}
-/* "extract" keyword from an Extended Nintendo Sound Format file
+/**
+ * "extract" meta data from an Extended Nintendo Sound Format file
*
- * NSFE specification revision 2 (Sep. 3, 2003)
- * was used, while this piece of software was
- * originally written.
+ * NSFE specification revision 2 (Sep. 3, 2003) was used, while this
+ * piece of software was originally written.
*
+ * @param ec extraction context
*/
-int
-EXTRACTOR_nsfe_extract (const char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls,
- const char *options)
+void
+EXTRACTOR_nsfe_extract_method (struct EXTRACTOR_ExtractContext *ec)
{
const struct header *head;
- int i;
- char chunkid[5] = " ";
+ void *data;
+ uint64_t off;
+ uint32_t chunksize;
int ret;
-
- if (size < HEADER_SIZE)
- return 0;
- head = (const struct header *) data;
- if (memcmp (head->magicid, "NSFE", 4))
- return 0;
- ADD ("audio/x-nsfe", EXTRACTOR_METATYPE_MIMETYPE);
- i = 4; /* Jump over magic id */
+
+ if (sizeof (struct header) >
+ ec->read (ec->cls,
+ &data,
+ sizeof (struct header)))
+ return;
+ head = data;
+ if (0 != memcmp (head->magicid, "NSFE", 4))
+ return;
+
+ if (0 != ec->proc (ec->cls,
+ "nsfe",
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "audio/x-nsfe",
+ strlen ("audio/x-nsfe") + 1))
+ return;
+ off = sizeof (struct header);
ret = 0;
- while (i + 7 < size && strncmp (chunkid, "NEND", 4)) /* CHECK */
+ while (0 == ret)
{
- unsigned int chunksize = nsfeuint (&data[i]);
-
- i += 4; /* Jump over chunk size */
- memcpy (&chunkid, data + i, 4);
- chunkid[4] = '\0';
-
- i += 4; /* Jump over chunk id */
- if (!strncmp (chunkid, "INFO", 4))
- ret = libextractor_nsfe_info_extract (data + i, chunksize, proc, proc_cls);
- else if (!strncmp (chunkid, "auth", 4))
- ret = libextractor_nsfe_auth_extract (data + i, chunksize, proc, proc_cls);
- else if (!strncmp (chunkid, "tlbl", 4))
- ret = libextractor_nsfe_tlbl_extract (data + i, chunksize, proc, proc_cls);
- /* Ignored chunks: DATA, NEND, plst, time, fade, BANK */
- i += chunksize;
- if (ret != 0)
+ if (off != ec->seek (ec->cls,
+ off,
+ SEEK_SET))
break;
+ if (8 >
+ ec->read (ec->cls,
+ &data,
+ sizeof (struct header)))
+ break;
+ chunksize = nsfeuint (data);
+ off += 4 + chunksize;
+ if (0 == memcmp (data + 4, "INFO", 4))
+ ret = info_extract (ec, chunksize);
+ else if (0 == memcmp (data + 4, "auth", 4))
+ ret = auth_extract (ec, chunksize);
+ else if (0 == memcmp (data + 4, "tlbl", 4))
+ ret = tlbl_extract (ec, chunksize);
+ /* Ignored chunks: DATA, NEND, plst, time, fade, BANK */
}
- return ret;
}
+
+/* end of nsfe_extractor.c */
diff --git a/src/plugins/odf_extractor.c b/src/plugins/odf_extractor.c
@@ -28,11 +28,6 @@
#include "unzip.h"
/**
- * Should filenames be treated as case sensitive?
- */
-#define CASESENSITIVITY 0
-
-/**
* Maximum length of a filename allowed inside the ZIP archive.
*/
#define MAXFILENAME 256
@@ -90,17 +85,17 @@ static struct Matches tmap[] = {
* @return NULL if no mimetype could be found, otherwise the mime type
*/
static char *
-libextractor_oo_getmimetype (EXTRACTOR_unzip_file uf)
+libextractor_oo_getmimetype (struct EXTRACTOR_UnzipFile * uf)
{
char filename_inzip[MAXFILENAME];
- EXTRACTOR_unzip_file_info file_info;
+ struct EXTRACTOR_UnzipFileInfo file_info;
char *buf;
size_t buf_size;
if (EXTRACTOR_UNZIP_OK !=
- EXTRACTOR_common_unzip_local_file (uf,
- "mimetype",
- CASESENSITIVITY))
+ EXTRACTOR_common_unzip_go_find_local_file (uf,
+ "mimetype",
+ 2))
return NULL;
if (EXTRACTOR_UNZIP_OK !=
EXTRACTOR_common_unzip_get_current_file_info (uf,
@@ -113,11 +108,8 @@ libextractor_oo_getmimetype (EXTRACTOR_unzip_file uf)
0))
return NULL;
if (EXTRACTOR_UNZIP_OK !=
- EXTRACTOR_common_unzip_open_current_file3 (uf, NULL, NULL, 0))
- {
- EXTRACTOR_common_unzip_close_current_file (uf);
- return NULL;
- }
+ EXTRACTOR_common_unzip_open_current_file (uf))
+ return NULL;
buf_size = file_info.uncompressed_size;
if (buf_size > 1024)
{
@@ -164,40 +156,25 @@ void
EXTRACTOR_odf_extract_method (struct EXTRACTOR_ExtractContext *ec)
{
char filename_inzip[MAXFILENAME];
- EXTRACTOR_unzip_file uf;
- EXTRACTOR_unzip_file_info file_info;
+ struct EXTRACTOR_UnzipFile *uf;
+ struct EXTRACTOR_UnzipFileInfo file_info;
char *buf;
char *pbuf;
size_t buf_size;
unsigned int i;
- EXTRACTOR_unzip_filefunc_def io;
char *mimetype;
- if (size < 100)
- return 0;
- if ( !( ('P'==data[0]) && ('K'==data[1]) && (0x03==data[2]) && (0x04==data[3])) )
- return 0;
-
- io.zopen_file = &EXTRACTOR_common_unzip_zlib_open_file_func;
- io.zread_file = &EXTRACTOR_common_unzip_zlib_read_file_func;
- io.zwrite_file = NULL;
- io.ztell_file = &EXTRACTOR_common_unzip_zlib_tell_file_func;
- io.zseek_file = &EXTRACTOR_common_unzip_zlib_seek_file_func;
- io.zclose_file = &EXTRACTOR_common_unzip_zlib_close_file_func;
- io.zerror_file = &EXTRACTOR_common_unzip_zlib_testerror_file_func;
- io.opaque = ec;
-
- if (NULL == (uf = EXTRACTOR_common_unzip_open2 ("ERROR", &io)))
+ if (NULL == (uf = EXTRACTOR_common_unzip_open (ec)))
return;
if (NULL != (mimetype = libextractor_oo_getmimetype (uf)))
{
- if (0 != proc (proc_cls,
- "deb",
- EXTRACTOR_METATYPE_MIMETYPE,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- mimetype,
- strlen (mimetype) + 1))
+ if (0 != ec->proc (ec->cls,
+ "odf",
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ mimetype,
+ strlen (mimetype) + 1))
{
EXTRACTOR_common_unzip_close (uf);
free (mimetype);
@@ -206,9 +183,9 @@ EXTRACTOR_odf_extract_method (struct EXTRACTOR_ExtractContext *ec)
free (mimetype);
}
if (EXTRACTOR_UNZIP_OK !=
- EXTRACTOR_common_unzip_local_file (uf,
- METAFILE,
- CASESENSITIVITY))
+ EXTRACTOR_common_unzip_go_find_local_file (uf,
+ METAFILE,
+ 2))
{
/* metafile not found */
EXTRACTOR_common_unzip_close (uf);
@@ -219,14 +196,14 @@ EXTRACTOR_odf_extract_method (struct EXTRACTOR_ExtractContext *ec)
&file_info,
filename_inzip,
sizeof (filename_inzip),
- NULL,0,NULL,0))
+ NULL, 0, NULL, 0))
{
/* problems accessing metafile */
EXTRACTOR_common_unzip_close (uf);
return;
}
if (EXTRACTOR_UNZIP_OK !=
- EXTRACTOR_common_unzip_open_current_file3 (uf, NULL, NULL, 0))
+ EXTRACTOR_common_unzip_open_current_file (uf))
{
/* problems with unzip */
EXTRACTOR_common_unzip_close (uf);
@@ -320,16 +297,14 @@ EXTRACTOR_odf_extract_method (struct EXTRACTOR_ExtractContext *ec)
memcpy(key, spos, epos-spos);
key[epos-spos] = '\0';
- if (0 != proc (proc_cls,
- "odf",
- tmap[i].type,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- key,
- epos - spos + 1))
- {
- goto CLEANUP;
- }
+ if (0 != ec->proc (ec->cls,
+ "odf",
+ tmap[i].type,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ key,
+ epos - spos + 1))
+ goto CLEANUP;
pbuf = epos;
}
else
diff --git a/src/plugins/sid_extractor.c b/src/plugins/sid_extractor.c
@@ -1,10 +1,10 @@
/*
* This file is part of libextractor.
- * (C) 2006, 2007 Toni Ruottu
+ * (C) 2006, 2007, 2012 Vidyut Samanta and Christian Grothoff
*
* libextractor is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2, or (at your
+ * by the Free Software Foundation; either version 3, or (at your
* option) any later version.
*
* libextractor is distributed in the hope that it will be useful, but
@@ -18,15 +18,17 @@
* Boston, MA 02111-1307, USA.
*
*/
+/**
+ * @file plugins/sid_extractor.c
+ * @brief plugin to support Scream Tracker (S3M) files
+ * @author Toni Ruottu
+ * @author Christian Grothoff
+ */
#include "platform.h"
#include "extractor.h"
-#define SID1_HEADER_SIZE 0x76
-#define SID2_HEADER_SIZE 0x7c
-
-/* flags */
-
+/* SID flags */
#define MUSPLAYER_FLAG 0x01
#define PLAYSID_FLAG 0x02
#define PAL_FLAG 0x04
@@ -34,51 +36,134 @@
#define MOS6581_FLAG 0x10
#define MOS8580_FLAG 0x20
+/**
+ * A "SID word".
+ */
typedef char sidwrd[2];
+
+/**
+ * A "SID long".
+ */
typedef char sidlongwrd[4];
+/**
+ * Header of a SID file.
+ */
struct header
{
+ /**
+ * Magic string.
+ */
char magicid[4];
+
+ /**
+ * Version number.
+ */
sidwrd sidversion;
+
+ /**
+ * Unknown.
+ */
sidwrd dataoffset;
+
+ /**
+ * Unknown.
+ */
sidwrd loadaddr;
+
+ /**
+ * Unknown.
+ */
sidwrd initaddr;
+
+ /**
+ * Unknown.
+ */
sidwrd playaddr;
+
+ /**
+ * Number of songs in file.
+ */
sidwrd songs;
+
+ /**
+ * Starting song.
+ */
sidwrd firstsong;
+
+ /**
+ * Unknown.
+ */
sidlongwrd speed;
+
+ /**
+ * Title of the album.
+ */
char title[32];
+
+ /**
+ * Name of the artist.
+ */
char artist[32];
+
+ /**
+ * Copyright information.
+ */
char copyright[32];
- sidwrd flags; /* version 2 specific fields start */
+
+ /* version 2 specific fields start */
+
+ /**
+ * Flags
+ */
+ sidwrd flags;
+
+ /**
+ * Unknown.
+ */
char startpage;
+
+ /**
+ * Unknown.
+ */
char pagelength;
+
+ /**
+ * Unknown.
+ */
sidwrd reserved;
};
+
+/**
+ * Convert a 'sidword' to an integer.
+ *
+ * @param data the sidword
+ * @return corresponding integer value
+ */
static int
sidword (const sidwrd data)
{
- int value = (unsigned char) data[0] * 0x100 + (unsigned char) data[1];
- return value;
-
+ return (unsigned char) data[0] * 0x100 + (unsigned char) data[1];
}
-#define ADD(s,t) do { if (0 != proc (proc_cls, "sid", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen(s)+1)) return 1; } while (0)
-/* "extract" keyword from a SID file
- *
- * This plugin is based on the nsf extractor
+/**
+ * Give metadata to LE; return if 'proc' returns non-zero.
*
+ * @param s metadata value as UTF8
+ * @param t metadata type to use
*/
+#define ADD(s,t) do { if (0 != ec->proc (ec->cls, "sid", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen (s) + 1)) return; } while (0)
+
-int
-EXTRACTOR_sid_extract (const char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls,
- const char *options)
+/**
+ * Extract metadata from SID files.
+ *
+ * @param ec extraction context
+ */
+void
+EXTRACTOR_sid_extract_method (struct EXTRACTOR_ExtractContext *ec)
{
unsigned int flags;
int version;
@@ -89,17 +174,19 @@ EXTRACTOR_sid_extract (const char *data,
char startingsong[32];
char sidversion[32];
const struct header *head;
+ void *data;
- /* Check header size */
-
- if (size < SID1_HEADER_SIZE)
- return 0;
- head = (const struct header *) data;
+ if (sizeof (struct header) >
+ ec->read (ec->cls,
+ &data,
+ sizeof (struct header)))
+ return;
+ head = data;
/* Check "magic" id bytes */
- if (memcmp (head->magicid, "PSID", 4) &&
- memcmp (head->magicid, "RSID", 4))
- return 0;
+ if ( (0 != memcmp (head->magicid, "PSID", 4)) &&
+ (0 != memcmp (head->magicid, "RSID", 4)) )
+ return;
/* Mime-type */
ADD ("audio/prs.sid", EXTRACTOR_METATYPE_MIMETYPE);
@@ -107,25 +194,24 @@ EXTRACTOR_sid_extract (const char *data,
/* Version of SID format */
version = sidword (head->sidversion);
snprintf (sidversion,
- sizeof(sidversion),
+ sizeof (sidversion),
"%d",
version);
ADD (sidversion, EXTRACTOR_METATYPE_FORMAT_VERSION);
/* Get song count */
snprintf (songs,
- sizeof(songs),
+ sizeof (songs),
"%d", sidword (head->songs));
ADD (songs, EXTRACTOR_METATYPE_SONG_COUNT);
/* Get number of the first song to be played */
snprintf (startingsong,
- sizeof(startingsong),
+ sizeof (startingsong),
"%d",
sidword (head->firstsong));
ADD (startingsong, EXTRACTOR_METATYPE_STARTING_SONG);
-
/* name, artist, copyright fields */
memcpy (&album, head->title, 32);
album[32] = '\0';
@@ -139,9 +225,8 @@ EXTRACTOR_sid_extract (const char *data,
copyright[32] = '\0';
ADD (copyright, EXTRACTOR_METATYPE_COPYRIGHT);
-
- if ( (version < 2) || (size < SID2_HEADER_SIZE))
- return 0;
+ if (version < 2)
+ return;
/* Version 2 specific options follow
*
@@ -150,42 +235,25 @@ EXTRACTOR_sid_extract (const char *data,
*/
flags = sidword (head->flags);
/* MUS data */
- if (flags & MUSPLAYER_FLAG)
+ if (0 != (flags & MUSPLAYER_FLAG))
ADD ("Compute!'s Sidplayer", EXTRACTOR_METATYPE_CREATED_BY_SOFTWARE);
/* PlaySID data */
- if (flags & PLAYSID_FLAG)
+ if (0 != (flags & PLAYSID_FLAG))
ADD ("PlaySID", EXTRACTOR_METATYPE_CREATED_BY_SOFTWARE);
/* PAL or NTSC */
-
- if (flags & PAL_FLAG)
- {
- if (flags & NTSC_FLAG)
- ADD ("PAL/NTSC", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
- else
- ADD ("PAL", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
- }
- else
- {
- if (flags & NTSC_FLAG)
- ADD ("NTSC", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
- }
+ if (0 != (flags & NTSC_FLAG))
+ ADD ("PAL/NTSC", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
+ else if (0 != (flags & PAL_FLAG))
+ ADD ("PAL", EXTRACTOR_METATYPE_BROADCAST_TELEVISION_SYSTEM);
/* Detect SID Chips suitable for play the files */
- if (flags & MOS6581_FLAG)
- {
- if (flags & MOS8580_FLAG)
- ADD ("MOS6581/MOS8580", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- else
- ADD ("MOS6581", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- }
- else
- {
- if (flags & MOS8580_FLAG)
- ADD ("MOS8580", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
- }
-
- return 0;
+ if (0 != (flags & MOS8580_FLAG))
+ ADD ("MOS6581/MOS8580", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
+ else if (0 != (flags & MOS6581_FLAG))
+ ADD ("MOS6581", EXTRACTOR_METATYPE_TARGET_ARCHITECTURE);
}
+
+/* end of sid_extractor.c */
diff --git a/src/plugins/test_deb.c b/src/plugins/test_deb.c
@@ -0,0 +1,150 @@
+/*
+ This file is part of libextractor.
+ (C) 2012 Vidyut Samanta and Christian Grothoff
+
+ libextractor is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ libextractor is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with libextractor; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file plugins/test_deb.c
+ * @brief testcase for deb plugin
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "test_lib.h"
+
+
+/**
+ * Main function for the DEB testcase.
+ *
+ * @param argc number of arguments (ignored)
+ * @param argv arguments (ignored)
+ * @return 0 on success
+ */
+int
+main (int argc, char *argv[])
+{
+ struct SolutionData deb_bzip2_sol[] =
+ {
+ {
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "application/x-debian-package",
+ strlen ("application/x-debian-package") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PACKAGE_NAME,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "bzip2",
+ strlen ("bzip2") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PACKAGE_VERSION,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "1.0.6-4",
+ strlen ("1.0.6-4") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_TARGET_ARCHITECTURE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "i386",
+ strlen ("i386") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PACKAGE_MAINTAINER,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "Anibal Monsalve Salazar <anibal@debian.org>",
+ strlen ("Anibal Monsalve Salazar <anibal@debian.org>") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PACKAGE_INSTALLED_SIZE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "113", /* FIXME: should this be 'kb'? */
+ strlen ("113") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PACKAGE_DEPENDENCY,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "libbz2-1.0 (= 1.0.6-4), libc6 (>= 2.4)",
+ strlen ("libbz2-1.0 (= 1.0.6-4), libc6 (>= 2.4)") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PACKAGE_SUGGESTS,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "bzip2-doc",
+ strlen ("bzip2-doc") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PACKAGE_REPLACES,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "libbz2 (<< 0.9.5d-3)",
+ strlen ("libbz2 (<< 0.9.5d-3)") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_SECTION,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "utils",
+ strlen ("utils") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_UPLOAD_PRIORITY,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "standard",
+ strlen ("standard") + 1,
+ 0
+ },
+#if 0
+ {
+ EXTRACTOR_METATYPE_DESCRIPTION,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "",
+ strlen ("") + 1,
+ 0
+ },
+#endif
+ { 0, 0, NULL, NULL, 0, -1 }
+ };
+ struct ProblemSet ps[] =
+ {
+ { "testdata/deb_bzip2.deb",
+ deb_bzip2_sol },
+ { NULL, NULL }
+ };
+ return ET_main ("deb", ps);
+}
+
+/* end of test_deb.c */
diff --git a/src/plugins/test_odf.c b/src/plugins/test_odf.c
@@ -0,0 +1,100 @@
+/*
+ This file is part of libextractor.
+ (C) 2012 Vidyut Samanta and Christian Grothoff
+
+ libextractor is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ libextractor is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with libextractor; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file plugins/test_odf.c
+ * @brief testcase for odf plugin
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "test_lib.h"
+
+
+/**
+ * Main function for the ODF testcase.
+ *
+ * @param argc number of arguments (ignored)
+ * @param argv arguments (ignored)
+ * @return 0 on success
+ */
+int
+main (int argc, char *argv[])
+{
+ struct SolutionData odf_cg_sol[] =
+ {
+ {
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "application/vnd.oasis.opendocument.text",
+ strlen ("application/vnd.oasis.opendocument.text") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_CREATED_BY_SOFTWARE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "OpenOffice.org/3.2$Unix OpenOffice.org_project/320m12$Build-9483",
+ strlen ("OpenOffice.org/3.2$Unix OpenOffice.org_project/320m12$Build-9483") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_PAGE_COUNT,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "1",
+ strlen ("1") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_CREATION_DATE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "2005-11-22T11:44:00",
+ strlen ("2005-11-22T11:44:00") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_UNKNOWN_DATE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "2010-06-09T13:09:34",
+ strlen ("2010-06-09T13:09:34") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_TITLE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "Anhang 1: Profile der beteiligten Wissenschaftler",
+ strlen ("Anhang 1: Profile der beteiligten Wissenschaftler") + 1,
+ 0
+ },
+ { 0, 0, NULL, NULL, 0, -1 }
+ };
+ struct ProblemSet ps[] =
+ {
+ { "testdata/odf_cg.odt",
+ odf_cg_sol },
+ { NULL, NULL }
+ };
+ return ET_main ("odf", ps);
+}
+
+/* end of test_odf.c */
diff --git a/src/plugins/test_zip.c b/src/plugins/test_zip.c
@@ -0,0 +1,108 @@
+/*
+ This file is part of libextractor.
+ (C) 2012 Vidyut Samanta and Christian Grothoff
+
+ libextractor is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ libextractor is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with libextractor; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file plugins/test_zip.c
+ * @brief testcase for zip plugin
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "test_lib.h"
+
+
+/**
+ * Main function for the ZIP testcase.
+ *
+ * @param argc number of arguments (ignored)
+ * @param argv arguments (ignored)
+ * @return 0 on success
+ */
+int
+main (int argc, char *argv[])
+{
+ struct SolutionData zip_test_sol[] =
+ {
+ {
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "application/zip",
+ strlen ("application/zip") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_COMMENT,
+ EXTRACTOR_METAFORMAT_C_STRING,
+ "text/plain",
+ "global zipfile comment",
+ strlen ("global zipfile comment") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_FILENAME,
+ EXTRACTOR_METAFORMAT_C_STRING,
+ "text/plain",
+ "ChangeLog",
+ strlen ("ChangeLog") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_FILENAME,
+ EXTRACTOR_METAFORMAT_C_STRING,
+ "text/plain",
+ "test.png",
+ strlen ("test.png") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_COMMENT,
+ EXTRACTOR_METAFORMAT_C_STRING,
+ "text/plain",
+ "comment for test.png",
+ strlen ("comment for test.png") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_FILENAME,
+ EXTRACTOR_METAFORMAT_C_STRING,
+ "text/plain",
+ "test.jpg",
+ strlen ("test.jpg") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_COMMENT,
+ EXTRACTOR_METAFORMAT_C_STRING,
+ "text/plain",
+ "comment for test.jpg",
+ strlen ("comment for test.jpg") + 1,
+ 0
+ },
+ { 0, 0, NULL, NULL, 0, -1 }
+ };
+ struct ProblemSet ps[] =
+ {
+ { "testdata/zip_test.zip",
+ zip_test_sol },
+ { NULL, NULL }
+ };
+ return ET_main ("zip", ps);
+}
+
+/* end of test_zip.c */
diff --git a/src/plugins/testdata/deb_bzip2.deb b/src/plugins/testdata/deb_bzip2.deb
Binary files differ.
diff --git a/src/plugins/testdata/odf_cg.odt b/src/plugins/testdata/odf_cg.odt
Binary files differ.
diff --git a/src/plugins/testdata/zip_test.zip b/src/plugins/testdata/zip_test.zip
Binary files differ.
diff --git a/src/plugins/zip_extractor.c b/src/plugins/zip_extractor.c
@@ -1,50 +1,10 @@
-/**
- zipextractor.c version 0.0.2
-
- Changes from 0.0.1 to 0.0.2
- -> Searches for central dir struct from end of file if this is a self-extracting executable
-
-
- This file was based on mp3extractor.c (0.1.2)
-
- Currently, this only returns a list of the filenames within a zipfile
- and any comments on each file or the whole file itself. File sizes,
- modification times, and crc's are currently ignored.
-
- TODO: Break the comments up into small, atomically, searchable chunks (keywords)
- - might need some knowledge of English?
-
- It returns:
-
- one EXTRACTOR_MIMETYPE
- multiple EXTRACTOR_FILENAME
- multiple EXTRACTOR_COMMENT
-
- ... from a .ZIP file
-
- TODO: EXTRACTOR_DATE, EXTRACTOR_DESCRIPTION, EXTRACTOR_KEYWORDS, others?
-
- Does NOT test data integrity (CRCs etc.)
-
- This version is not recursive (i.e. doesn't look inside zip
- files within zip files)
-
- TODO: Run extract on files inside of archive (?) (i.e. gif, mp3, etc.)
-
- The current .ZIP format description:
- ftp://ftp.pkware.com/appnote.zip
-
- No Copyright 2003 Julia Wolf
-
- */
-
/*
* This file is part of libextractor.
- * (C) 2002, 2003, 2009 Vidyut Samanta and Christian Grothoff
+ * (C) 2012 Vidyut Samanta and Christian Grothoff
*
* libextractor is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
- * by the Free Software Foundation; either version 2, or (at your
+ * by the Free Software Foundation; either version 3, or (at your
* option) any later version.
*
* libextractor is distributed in the hope that it will be useful, but
@@ -57,354 +17,113 @@
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
-
+/**
+ * @file plugins/zip_extractor.c
+ * @brief plugin to support ZIP files
+ * @author Christian Grothoff
+ */
#include "platform.h"
+#include <ctype.h>
#include "extractor.h"
-
-#define DEBUG_EXTRACT_ZIP 0
-
-/* In a zipfile there are two kinds of comments. One is a big one for the
- entire .zip, it's usually a BBS ad. The other is a small comment on each
- individual file; most people don't use this.
- */
-
-/* TODO: zip_entry linked list is handeled kinda messily, should clean up (maybe) */
- typedef struct
-{
- char *filename;
- char *comment;
- void *next;
- } zip_entry;
+#include "unzip.h"
-/* mimetype = application/zip */
-int
-EXTRACTOR_zip_extract (const unsigned char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls,
- const char *options)
-{
- int ret;
- void *tmp;
- zip_entry * info;
- zip_entry * start;
- char *filecomment;
- const unsigned char *pos;
- unsigned int offset, stop;
- unsigned int name_length;
- unsigned int extra_length;
- unsigned int comment_length;
- unsigned int filecomment_length;
- unsigned int entry_count;
-#if DEBUG_EXTRACT_ZIP
- unsigned int entry_total;
-#endif
-
- /* I think the smallest zipfile you can have is about 120 bytes */
- if ((NULL == data) || (size < 100))
- return 0;
- if (! (('P' == data[0]) && ('K' == data[1]) && (0x03 == data[2])
- && (0x04 == data[3])))
- return 0;
-
- /* The filenames for each file in a zipfile are stored in two locations.
- * There is one at the start of each entry, just before the compressed data,
- * and another at the end in a 'central directory structure'.
- *
- * In order to catch self-extracting executables, we scan backwards from the end
- * of the file looking for the central directory structure. The previous version
- * of this went forewards through the local headers, but that only works for plain
- * vanilla zip's and I don't feel like writing a special case for each of the dozen
- * self-extracting executable stubs.
- *
- * This assumes that the zip file is considered to be non-corrupt/non-truncated.
- * If it is truncated then it's not considered to be a zip and skipped.
- *
- */
-
- /* From appnote.iz and appnote.txt (more or less)
- *
- * (this is why you always need to put in the last floppy if you span disks)
- *
- * 0- 3 end of central dir signature 4 bytes (0x06054b50) P K ^E ^F
- * 4- 5 number of this disk 2 bytes
- * 6- 7 number of the disk with the
- * start of the central directory 2 bytes
- * 8- 9 total number of entries in
- * the central dir on this disk 2 bytes
- * 10-11 total number of entries in
- * the central dir 2 bytes
- * 12-15 size of the central directory 4 bytes
- * 16-19 offset of start of central
- * directory with respect to
- * the starting disk number 4 bytes
- * 20-21 zipfile comment length 2 bytes
- * 22-?? zipfile comment (variable size) max length 65536 bytes
- */
-
- /* the signature can't be more than 22 bytes from the end */
- offset = size - 22;
- pos = &data[offset];
- stop = 0;
- if (((signed int) size - 65556) > 0)
- stop = size - 65556;
-
- /* not using int 0x06054b50 so that we don't have to deal with endianess issues.
- break out if we go more than 64K backwards and havn't found it, or if we hit the
- begining of the file. */
- while ((!(('P' == pos[0]) && ('K' == pos[1]) && (0x05 == pos[2])
- && (0x06 == pos[3]))) && (offset > stop))
- pos = &data[offset--];
- if (offset == stop)
- {
-#if DEBUG_EXTRACT_ZIP
- fprintf (stderr,
- "Did not find end of central directory structure signature. offset: %i\n",
- offset);
-
-#endif
- return 0;
- }
- /* offset should now point to the start of the end-of-central directory structure */
- /* and pos[0] should be pointing there too */
- /* so slurp down filecomment while here... */
- filecomment_length = pos[20] + (pos[21] << 8);
- if (filecomment_length + offset + 22 > size)
- {
- return 0; /* invalid zip file format! */
- }
- filecomment = NULL;
- if (filecomment_length > 0)
+/**
+ * Main entry method for the 'application/zip' extraction plugin.
+ *
+ * @param ec extraction context provided to the plugin
+ */
+void
+EXTRACTOR_zip_extract_method (struct EXTRACTOR_ExtractContext *ec)
+{
+ struct EXTRACTOR_UnzipFile *uf;
+ struct EXTRACTOR_UnzipFileInfo fi;
+ char fname[256];
+ char fcomment[256];
+
+ if (NULL == (uf = EXTRACTOR_common_unzip_open (ec)))
+ return;
+ if ( (EXTRACTOR_UNZIP_OK ==
+ EXTRACTOR_common_unzip_go_find_local_file (uf,
+ "meta.xml",
+ 2)) ||
+ (EXTRACTOR_UNZIP_OK ==
+ EXTRACTOR_common_unzip_go_find_local_file (uf,
+ "META-INF/MANIFEST.MF",
+ 2)) )
{
- filecomment = malloc (filecomment_length + 1);
- if (filecomment != NULL)
- {
- memcpy (filecomment, &pos[22], filecomment_length);
- filecomment[filecomment_length] = '\0';
- }
+ /* not a normal zip, might be odf, jar, etc. */
+ goto CLEANUP;
}
-
-#if DEBUG_EXTRACT_ZIP
- if ((0 != pos[4]) && (0 != pos[5]))
- fprintf (stderr,
- "WARNING: This seems to be the last disk in a multi-volume"
- " ZIP archive, and so this might not work.\n");
-#endif
-
-#if DEBUG_EXTRACT_ZIP
- if ((pos[8] != pos[10]) && (pos[9] != pos[11]))
- fprintf (stderr,
- "WARNING: May not be able to find all the files in this"
- " ZIP archive (no multi-volume support right now).\n");
- entry_total = pos[10] + (pos[11] << 8);
-#endif
- entry_count = 0;
-
- /* jump to start of central directory, ASSUMING that the starting disk that it's on is disk 0 */
- /* starting disk would otherwise be pos[6]+pos[7]<<8 */
- offset = pos[16] + (pos[17] << 8) + (pos[18] << 16) + (pos[19] << 24); /* offset of cent-dir from start of disk 0 */
-
- /* stop = pos[12] + (pos[13]<<8) + (pos[14]<<16) + (pos[15]<<24); *//* length of central dir */
- if (offset + 46 > size)
+ if (EXTRACTOR_UNZIP_OK !=
+ EXTRACTOR_common_unzip_go_to_first_file (uf))
+ {
+ /* zip malformed? */
+ goto CLEANUP;
+ }
+ if (0 !=
+ ec->proc (ec->cls,
+ "zip",
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "application/zip",
+ strlen ("application/zip") + 1))
+ goto CLEANUP;
+ if (EXTRACTOR_UNZIP_OK ==
+ EXTRACTOR_common_unzip_get_global_comment (uf,
+ fcomment,
+ sizeof (fcomment)))
{
-
- /* not a zip */
- if (filecomment != NULL)
- free (filecomment);
- return 0;
+ if ( (0 != strlen (fcomment)) &&
+ (0 !=
+ ec->proc (ec->cls,
+ "zip",
+ EXTRACTOR_METATYPE_COMMENT,
+ EXTRACTOR_METAFORMAT_C_STRING,
+ "text/plain",
+ fcomment,
+ strlen (fcomment) + 1)))
+ goto CLEANUP;
}
- pos = &data[offset]; /* jump */
-
- /* we should now be at the begining of the central directory structure */
-
- /* from appnote.txt and appnote.iz (mostly)
- *
- * 0- 3 central file header signature 4 bytes (0x02014b50)
- * 4- 5 version made by 2 bytes
- * 6- 7 version needed to extract 2 bytes
- * 8- 9 general purpose bit flag 2 bytes
- * 10-11 compression method 2 bytes
- * 12-13 last mod file time 2 bytes
- * 14-15 last mod file date 2 bytes
- * 16-19 crc-32 4 bytes
- * 20-23 compressed size 4 bytes
- * 24-27 uncompressed size 4 bytes
- * 28-29 filename length 2 bytes
- * 30-31 extra field length 2 bytes
- * 32-33 file comment length 2 bytes
- * 34-35 disk number start 2 bytes
- * 36-37 internal file attributes 2 bytes
- * 38-41 external file attributes 4 bytes
- * 42-45 relative offset of local header 4 bytes
- *
- * 46-?? filename (variable size)
- * ?- ? extra field (variable size)
- * ?- ? file comment (variable size)
- */
- if (!(('P' == pos[0]) && ('K' == pos[1]) && (0x01 == pos[2])
- && (0x02 == pos[3])))
- {
-#if DEBUG_EXTRACT_ZIP
- fprintf (stderr,
- "Did not find central directory structure signature. offset: %i\n",
- offset);
-
-#endif
- if (filecomment != NULL)
- free (filecomment);
- return 0;
- }
- start = NULL;
- info = NULL;
-
do
- { /* while ( (0x01==pos[2])&&(0x02==pos[3]) ) */
- entry_count++; /* check to make sure we found everything at the end */
- name_length = pos[28] + (pos[29] << 8);
- extra_length = pos[30] + (pos[31] << 8);
- comment_length = pos[32] + (pos[33] << 8);
- if (name_length + extra_length + comment_length + offset + 46 > size)
- {
-
- /* ok, invalid, abort! */
- break;
- }
-
-#if DEBUG_EXTRACT_ZIP
- fprintf (stderr, "Found filename length %i Comment length: %i\n",
- name_length, comment_length);
-
-#endif
- /* yay, finally get filenames */
- if (start == NULL)
- {
- start = malloc (sizeof (zip_entry));
- if (start == NULL)
- break;
- start->next = NULL;
- info = start;
- }
- else
- {
- info->next = malloc (sizeof (zip_entry));
- if (info->next == NULL)
- break;
- info = info->next;
- info->next = NULL;
- }
- info->filename = malloc (name_length + 1);
- info->comment = malloc (comment_length + 1);
-
- /* (strings in zip files are not null terminated) */
- if (info->filename != NULL)
- {
- memcpy (info->filename, &pos[46], name_length);
- info->filename[name_length] = '\0';
- }
- if (info->comment != NULL)
- {
- memcpy (info->comment, &pos[46 + name_length + extra_length],
- comment_length);
- info->comment[comment_length] = '\0';
- }
- offset += 46 + name_length + extra_length + comment_length;
- pos = &data[offset];
- /* check for next header entry (0x02014b50) or (0x06054b50) if at end */
- if (('P' != pos[0]) && ('K' != pos[1]))
- {
-#if DEBUG_EXTRACT_ZIP
- fprintf (stderr,
- "Did not find next header in central directory.\n");
-
-#endif
- info = start;
- while (info != NULL)
- {
- start = info->next;
- if (info->filename != NULL)
- free (info->filename);
- if (info->comment != NULL)
- free (info->comment);
- free (info);
- info = start;
- }
- if (filecomment != NULL)
- free (filecomment);
- return 0;
- }
- }
- while ((0x01 == pos[2]) && (0x02 == pos[3]));
-
- /* end list */
-
- /* TODO: should this return an error? indicates corrupt zipfile (or
- disk missing in middle of multi-disk)? */
-#if DEBUG_EXTRACT_ZIP
- if (entry_count != entry_total)
- fprintf (stderr,
- "WARNING: Did not find all of the zipfile entries that we should have.\n");
-#endif
-
- ret = proc (proc_cls,
- "zip",
- EXTRACTOR_METATYPE_MIMETYPE,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- "application/zip",
- strlen ("application/zip")+1);
- if ( (filecomment != NULL) && (ret != 0) )
- {
- ret = proc (proc_cls,
- "zip",
- EXTRACTOR_METATYPE_MIMETYPE,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- filecomment,
- strlen (filecomment)+1);
- }
- if (filecomment != NULL)
- free (filecomment);
-
-
- /* if we've gotten to here then there is at least one zip entry (see get_zipinfo call above) */
- /* note: this free()'s the info list as it goes */
- info = start;
- while (NULL != info)
{
- if (info->filename != NULL)
- {
- if ( (ret == 0) && (strlen (info->filename)) )
- {
- ret = proc (proc_cls,
+ if (EXTRACTOR_UNZIP_OK ==
+ EXTRACTOR_common_unzip_get_current_file_info (uf,
+ &fi,
+ fname,
+ sizeof (fname),
+ NULL, 0,
+ fcomment,
+ sizeof (fcomment)))
+ {
+ if ( (0 != strlen (fname)) &&
+ (0 !=
+ ec->proc (ec->cls,
"zip",
EXTRACTOR_METATYPE_FILENAME,
- EXTRACTOR_METAFORMAT_UTF8,
+ EXTRACTOR_METAFORMAT_C_STRING,
"text/plain",
- info->filename,
- strlen (info->filename)+1);
- }
- free (info->filename);
- }
- if (info->comment != NULL)
- {
- if ( (ret == 0) && (strlen (info->comment) > 0) )
- {
- ret = proc (proc_cls,
+ fname,
+ strlen (fname) + 1)))
+ goto CLEANUP;
+ if ( (0 != strlen (fcomment)) &&
+ (0 !=
+ ec->proc (ec->cls,
"zip",
- EXTRACTOR_METATYPE_FILENAME,
- EXTRACTOR_METAFORMAT_UTF8,
+ EXTRACTOR_METATYPE_COMMENT,
+ EXTRACTOR_METAFORMAT_C_STRING,
"text/plain",
- info->comment,
- strlen (info->comment)+1);
- }
- free (info->comment);
- }
- tmp = info;
- info = info->next;
- free (tmp);
+ fcomment,
+ strlen (fcomment) + 1)))
+ goto CLEANUP;
+ }
}
- return ret;
+ while (EXTRACTOR_UNZIP_OK ==
+ EXTRACTOR_common_unzip_go_to_next_file (uf));
+
+CLEANUP:
+ (void) EXTRACTOR_common_unzip_close (uf);
}
-
+/* end of zip_extractor.c */
