commit 5f10e5b8eadbd862aeb78ebf3b6aa2a425372392
parent 50ee542a691d498bf546661702e90ed57b28664e
Author: Christian Grothoff <christian@grothoff.org>
Date: Sun, 12 Aug 2012 12:50:46 +0000
porting PNG plugin
Diffstat:
9 files changed, 689 insertions(+), 423 deletions(-)
diff --git a/src/common/pack.c b/src/common/pack.c
@@ -39,7 +39,9 @@ typedef signed int sword;
int
-EXTRACTOR_common_cat_unpack (const void *buf, const char *fmt, ...)
+EXTRACTOR_common_cat_unpack (const void *buf,
+ const char *fmt,
+ ...)
{
va_list ap;
word maxlen, len, *wordp;
diff --git a/src/common/unzip.c b/src/common/unzip.c
@@ -4,7 +4,7 @@
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
@@ -695,7 +695,7 @@ EXTRACTOR_common_unzip_close_current_file (EXTRACTOR_unzip_file file)
(!pfile_in_zip_read_info->raw))
{
if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
- err=EXTRACTOR_UNZIP_CRCERROR;
+ err=EXTRACTOR_UNZIP_CRCERROR;
}
diff --git a/src/common/unzip.h b/src/common/unzip.h
@@ -1,10 +1,10 @@
-/*
+]/*
This file is part of libextractor.
(C) 2008 Christian Grothoff (and other contributing authors)
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
@@ -34,18 +34,20 @@
typedef voidp EXTRACTOR_unzip_file;
+
typedef struct EXTRACTOR_unzip_filefunc_def_s
{
- voidpf ( *zopen_file) (voidpf opaque, const char* filename, int mode);
- uLong ( *zread_file) (voidpf opaque, voidpf stream, void* buf, uLong size);
- uLong ( *zwrite_file) (voidpf opaque, voidpf stream, const void* buf, uLong size);
- long ( *ztell_file) (voidpf opaque, voidpf stream);
- long ( *zseek_file) (voidpf opaque, voidpf stream, uLong offset, int origin);
- int ( *zclose_file) (voidpf opaque, voidpf stream);
- int ( *zerror_file) (voidpf opaque, voidpf stream);
+ voidpf ( *zopen_file) (voidpf opaque, const char* filename, int mode);
+ uLong ( *zread_file) (voidpf opaque, voidpf stream, void* buf, uLong size);
+ uLong ( *zwrite_file) (voidpf opaque, voidpf stream, const void* buf, uLong size);
+ long ( *ztell_file) (voidpf opaque, voidpf stream);
+ long ( *zseek_file) (voidpf opaque, voidpf stream, uLong offset, int origin);
+ int ( *zclose_file) (voidpf opaque, voidpf stream);
+ int ( *zerror_file) (voidpf opaque, voidpf stream);
voidpf opaque;
} EXTRACTOR_unzip_filefunc_def;
+
/* tm_unz contain date/time info */
typedef struct EXTRACTOR_unzip_tm_unz_s
{
@@ -57,6 +59,7 @@ typedef struct EXTRACTOR_unzip_tm_unz_s
uInt tm_year; /* years - [1980..2044] */
} EXTRACTOR_unzip_tm_unz;
+
/* unz_file_info contain information about a file in the zipfile */
typedef struct EXTRACTOR_unzip_file_info_s
{
@@ -79,48 +82,96 @@ typedef struct EXTRACTOR_unzip_file_info_s
EXTRACTOR_unzip_tm_unz tmu_date;
} EXTRACTOR_unzip_file_info;
-int EXTRACTOR_common_unzip_string_file_name_compare(const char* fileName1,
- const char* fileName2, int iCaseSensitivity);
-int EXTRACTOR_common_unzip_go_to_first_file(EXTRACTOR_unzip_file file);
+int
+EXTRACTOR_common_unzip_string_file_name_compare (const char* fileName1,
+ const char* fileName2,
+ int iCaseSensitivity);
+
+
+int
+EXTRACTOR_common_unzip_go_to_first_file (EXTRACTOR_unzip_file file);
+
+
+EXTRACTOR_unzip_file
+EXTRACTOR_common_unzip_open2 (const char *path,
+ EXTRACTOR_unzip_filefunc_def* pzlib_filefunc_def);
+
+
+int
+EXTRACTOR_common_unzip_close_current_file (EXTRACTOR_unzip_file file);
+
+
+int
+EXTRACTOR_common_unzip_close (EXTRACTOR_unzip_file file);
+
+
+int
+EXTRACTOR_common_unzip_get_current_file_info (EXTRACTOR_unzip_file file,
+ EXTRACTOR_unzip_file_info *pfile_info,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize);
+
+
+int
+EXTRACTOR_common_unzip_go_to_next_file (EXTRACTOR_unzip_file file);
+
+
+int
+EXTRACTOR_common_unzip_local_file (EXTRACTOR_unzip_file file,
+ const char *szFileName,
+ int iCaseSensitivity);
+
+
+int
+EXTRACTOR_common_unzip_read_current_file (EXTRACTOR_unzip_file file,
+ voidp buf,
+ unsigned len);
-EXTRACTOR_unzip_file EXTRACTOR_common_unzip_open2(const char *path,
- EXTRACTOR_unzip_filefunc_def* pzlib_filefunc_def);
-int EXTRACTOR_common_unzip_close_current_file(EXTRACTOR_unzip_file file);
+int
+EXTRACTOR_common_unzip_open_current_file3 (EXTRACTOR_unzip_file file,
+ int* method,
+ int* level,
+ int raw);
-int EXTRACTOR_common_unzip_close(EXTRACTOR_unzip_file file);
-int EXTRACTOR_common_unzip_get_current_file_info(EXTRACTOR_unzip_file file,
- EXTRACTOR_unzip_file_info *pfile_info, char *szFileName, uLong fileNameBufferSize,
- void *extraField, uLong extraFieldBufferSize, char *szComment,
- uLong commentBufferSize);
+voidpf
+EXTRACTOR_common_unzip_zlib_open_file_func (voidpf opaque,
+ const char* filename,
+ int mode);
-int EXTRACTOR_common_unzip_go_to_next_file(EXTRACTOR_unzip_file file);
-int EXTRACTOR_common_unzip_local_file(EXTRACTOR_unzip_file file, const char *szFileName,
- int iCaseSensitivity);
+uLong
+EXTRACTOR_common_unzip_zlib_read_file_func (voidpf opaque,
+ voidpf stream,
+ void* buf,
+ uLong size);
-int EXTRACTOR_common_unzip_read_current_file(EXTRACTOR_unzip_file file, voidp buf,
- unsigned len);
-int EXTRACTOR_common_unzip_open_current_file3(EXTRACTOR_unzip_file file, int* method,
- int* level, int raw);
+long
+EXTRACTOR_common_unzip_zlib_tell_file_func (voidpf opaque,
+ voidpf stream);
-voidpf EXTRACTOR_common_unzip_zlib_open_file_func(voidpf opaque,
- const char* filename, int mode);
-uLong EXTRACTOR_common_unzip_zlib_read_file_func(voidpf opaque, voidpf stream,
- void* buf, uLong size);
+long
+EXTRACTOR_common_unzip_zlib_seek_file_func (voidpf opaque,
+ voidpf stream,
+ uLong offset,
+ int origin);
-long EXTRACTOR_common_unzip_zlib_tell_file_func(voidpf opaque, voidpf stream);
-long EXTRACTOR_common_unzip_zlib_seek_file_func(voidpf opaque, voidpf stream,
- uLong offset, int origin);
+int
+EXTRACTOR_common_unzip_zlib_close_file_func (voidpf opaque,
+ voidpf stream);
-int EXTRACTOR_common_unzip_zlib_close_file_func(voidpf opaque, voidpf stream);
-int EXTRACTOR_common_unzip_zlib_testerror_file_func(voidpf opaque,
- voidpf stream);
+int
+EXTRACTOR_common_unzip_zlib_testerror_file_func (voidpf opaque,
+ voidpf stream);
#endif /* UNZIP_H_ */
diff --git a/src/plugins/Makefile.am b/src/plugins/Makefile.am
@@ -29,7 +29,8 @@ EXTRA_DIST = template_extractor.c \
testdata/ole2_msword.doc \
testdata/ole2_starwriter40.sdw \
testdata/ole2_blair.doc \
- testdata/ole2_excel.xls
+ testdata/ole2_excel.xls \
+ testdata/png_image.png
if HAVE_VORBISFILE
PLUGIN_OGG=libextractor_ogg.la
@@ -79,6 +80,7 @@ endif
plugin_LTLIBRARIES = \
libextractor_it.la \
+ libextractor_png.la \
libextractor_xm.la \
libextractor_s3m.la \
libextractor_wav.la \
@@ -100,6 +102,7 @@ check_PROGRAMS = \
test_wav \
test_it \
test_s3m \
+ test_png \
$(TEST_OGG) \
$(TEST_MIME) \
$(TEST_GIF) \
@@ -130,6 +133,19 @@ libextractor_xm_la_LDFLAGS = \
$(PLUGINFLAGS)
+libextractor_png_la_SOURCES = \
+ png_extractor.c
+libextractor_png_la_LDFLAGS = \
+ $(PLUGINFLAGS)
+libextractor_png_la_LIBADD = \
+ $(top_builddir)/src/common/libextractor_common.la
+
+test_png_SOURCES = \
+ test_png.c
+test_png_LDADD = \
+ $(top_builddir)/src/plugins/libtest.la
+
+
libextractor_it_la_SOURCES = \
it_extractor.c
libextractor_it_la_LDFLAGS = \
diff --git a/src/plugins/odf_extractor.c b/src/plugins/odf_extractor.c
@@ -1,10 +1,10 @@
/*
This file is part of libextractor.
- (C) 2004, 2009 Vidyut Samanta and Christian Grothoff
+ (C) 2004, 2009, 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
@@ -17,28 +17,53 @@
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
-
+/**
+ * @file plugins/odf_extractor.c
+ * @brief plugin to support ODF files
+ * @author Christian Grothoff
+ */
#include "platform.h"
#include <ctype.h>
#include "extractor.h"
-#include "zlib.h"
#include "unzip.h"
-#define CASESENSITIVITY (0)
-#define MAXFILENAME (256)
+/**
+ * Should filenames be treated as case sensitive?
+ */
+#define CASESENSITIVITY 0
+/**
+ * Maximum length of a filename allowed inside the ZIP archive.
+ */
+#define MAXFILENAME 256
/**
* Name of the file with the meta-data in OO documents.
*/
#define METAFILE "meta.xml"
-typedef struct {
+
+/**
+ * Mapping from ODF meta data strings to LE types.
+ */
+struct Matches
+{
+ /**
+ * ODF description.
+ */
const char * text;
+
+ /**
+ * Corresponding LE type.
+ */
enum EXTRACTOR_MetaType type;
-} Matches;
+};
+
-static Matches tmap[] = {
+/**
+ * NULL-terminated map from ODF meta data strings to LE types.
+ */
+static struct Matches tmap[] = {
{ "meta:generator", EXTRACTOR_METATYPE_CREATED_BY_SOFTWARE },
{ "meta:page-count", EXTRACTOR_METATYPE_PAGE_COUNT },
{ "meta:creation-date", EXTRACTOR_METATYPE_CREATION_DATE },
@@ -53,101 +78,106 @@ static Matches tmap[] = {
{ "meta:user-defined meta:name=\"Info 2\"", EXTRACTOR_METATYPE_COMMENT },
{ "meta:user-defined meta:name=\"Info 3\"", EXTRACTOR_METATYPE_COMMENT },
{ "meta:user-defined meta:name=\"Info 4\"", EXTRACTOR_METATYPE_COMMENT },
- { NULL, 0 },
+ { NULL, 0 }
};
/**
- * returns either zero when mimetype info is missing
- * or an already malloc'ed string containing the mimetype info.
+ * Obtain the mimetype of the archive by reading the 'mimetype'
+ * file of the ZIP.
+ *
+ * @param uf unzip context to extract the mimetype from
+ * @return NULL if no mimetype could be found, otherwise the mime type
*/
static char *
-libextractor_oo_getmimetype(EXTRACTOR_unzip_file uf) {
+libextractor_oo_getmimetype (EXTRACTOR_unzip_file uf)
+{
char filename_inzip[MAXFILENAME];
EXTRACTOR_unzip_file_info file_info;
- char * buf = NULL;
- size_t buf_size = 0;
+ char *buf;
+ size_t buf_size;
- if (EXTRACTOR_UNZIP_OK != EXTRACTOR_common_unzip_local_file(uf,
- "mimetype",
- CASESENSITIVITY))
+ if (EXTRACTOR_UNZIP_OK !=
+ EXTRACTOR_common_unzip_local_file (uf,
+ "mimetype",
+ CASESENSITIVITY))
return NULL;
- if ( (EXTRACTOR_UNZIP_OK == EXTRACTOR_common_unzip_get_current_file_info(uf,
- &file_info,
- filename_inzip,
- sizeof(filename_inzip),
- NULL,
- 0,
- NULL,
- 0) &&
- (EXTRACTOR_UNZIP_OK == EXTRACTOR_common_unzip_open_current_file3(uf, NULL, NULL, 0)) ) ) {
- buf_size = file_info.uncompressed_size;
-
- if (buf_size > 1024)
- {
- /* way too large! */
- }
- else if (NULL == (buf = malloc(1 + buf_size)))
- {
- /* memory exhausted! */
- }
- else if (buf_size != (size_t) EXTRACTOR_common_unzip_read_current_file(uf,buf,buf_size))
- {
- free(buf);
- buf = NULL;
- }
- else
- {
- /* found something */
- buf[buf_size] = '\0';
- while ( (0 < buf_size) &&
- isspace( (unsigned char) buf[buf_size - 1]))
- buf[--buf_size] = '\0';
- if ('\0' == buf[0])
- {
- free(buf);
- buf = NULL;
- }
- }
- }
- EXTRACTOR_common_unzip_close_current_file(uf);
+ if (EXTRACTOR_UNZIP_OK !=
+ EXTRACTOR_common_unzip_get_current_file_info (uf,
+ &file_info,
+ filename_inzip,
+ sizeof (filename_inzip),
+ NULL,
+ 0,
+ NULL,
+ 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;
+ }
+ buf_size = file_info.uncompressed_size;
+ if (buf_size > 1024)
+ {
+ /* way too large! */
+ EXTRACTOR_common_unzip_close_current_file (uf);
+ return NULL;
+ }
+ if (NULL == (buf = malloc (1 + buf_size)))
+ {
+ /* memory exhausted! */
+ EXTRACTOR_common_unzip_close_current_file (uf);
+ return NULL;
+ }
+ if (buf_size !=
+ (size_t) EXTRACTOR_common_unzip_read_current_file (uf,
+ buf,
+ buf_size))
+ {
+ free(buf);
+ EXTRACTOR_common_unzip_close_current_file(uf);
+ return NULL;
+ }
+ /* found something */
+ buf[buf_size] = '\0';
+ while ( (0 < buf_size) &&
+ isspace( (unsigned char) buf[buf_size - 1]))
+ buf[--buf_size] = '\0';
+ if ('\0' == buf[0])
+ {
+ free (buf);
+ buf = NULL;
+ }
+ EXTRACTOR_common_unzip_close_current_file (uf);
return buf;
}
-typedef struct Ecls {
- char * data;
- size_t size;
- size_t pos;
-} Ecls;
-
-
-int
-EXTRACTOR_odf_extract (const char *data,
- size_t size,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls,
- const char *options)
+/**
+ * Main entry method for the ODF extraction plugin.
+ *
+ * @param ec extraction context provided to the plugin
+ */
+void
+EXTRACTOR_odf_extract_method (struct EXTRACTOR_ExtractContext *ec)
{
char filename_inzip[MAXFILENAME];
EXTRACTOR_unzip_file uf;
EXTRACTOR_unzip_file_info file_info;
- char * buf;
- char * pbuf;
+ char *buf;
+ char *pbuf;
size_t buf_size;
- int i;
+ unsigned int i;
EXTRACTOR_unzip_filefunc_def io;
- Ecls cls;
- char * mimetype;
+ char *mimetype;
if (size < 100)
return 0;
if ( !( ('P'==data[0]) && ('K'==data[1]) && (0x03==data[2]) && (0x04==data[3])) )
return 0;
- cls.data = (void*) data;
- cls.size = size;
- cls.pos = 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;
@@ -155,151 +185,161 @@ EXTRACTOR_odf_extract (const char *data,
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 = &cls;
-
- uf = EXTRACTOR_common_unzip_open2("ERROR", &io);
- if (uf == NULL)
- return 0;
- mimetype = libextractor_oo_getmimetype(uf);
- if ( (NULL != mimetype) &&
- (0 != proc (proc_cls,
- "deb",
- EXTRACTOR_METATYPE_MIMETYPE,
- EXTRACTOR_METAFORMAT_UTF8,
- "text/plain",
- mimetype,
- strlen (mimetype)+1)) )
+ io.opaque = ec;
+
+ if (NULL == (uf = EXTRACTOR_common_unzip_open2 ("ERROR", &io)))
+ return;
+ if (NULL != (mimetype = libextractor_oo_getmimetype (uf)))
{
- EXTRACTOR_common_unzip_close(uf);
+ if (0 != proc (proc_cls,
+ "deb",
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ mimetype,
+ strlen (mimetype) + 1))
+ {
+ EXTRACTOR_common_unzip_close (uf);
+ free (mimetype);
+ return;
+ }
free (mimetype);
- return 1;
}
- free (mimetype);
- if (EXTRACTOR_common_unzip_local_file(uf,
- METAFILE,
- CASESENSITIVITY) != EXTRACTOR_UNZIP_OK) {
- EXTRACTOR_common_unzip_close(uf);
- return 0; /* not found */
- }
-
+ if (EXTRACTOR_UNZIP_OK !=
+ EXTRACTOR_common_unzip_local_file (uf,
+ METAFILE,
+ CASESENSITIVITY))
+ {
+ /* metafile not found */
+ EXTRACTOR_common_unzip_close (uf);
+ return;
+ }
if (EXTRACTOR_UNZIP_OK !=
- EXTRACTOR_common_unzip_get_current_file_info(uf,
- &file_info,
- filename_inzip,
- sizeof(filename_inzip),
- NULL,0,NULL,0)) {
- EXTRACTOR_common_unzip_close(uf);
- return 0; /* problems... */
- }
-
- if (EXTRACTOR_UNZIP_OK != EXTRACTOR_common_unzip_open_current_file3(uf, NULL, NULL, 0)) {
- EXTRACTOR_common_unzip_close(uf);
- return 0; /* problems... */
- }
+ EXTRACTOR_common_unzip_get_current_file_info (uf,
+ &file_info,
+ filename_inzip,
+ sizeof (filename_inzip),
+ 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))
+ {
+ /* problems with unzip */
+ EXTRACTOR_common_unzip_close (uf);
+ return;
+ }
buf_size = file_info.uncompressed_size;
- if (buf_size > 128 * 1024) {
- EXTRACTOR_common_unzip_close_current_file(uf);
- EXTRACTOR_common_unzip_close(uf);
- return 0; /* hardly meta-data! */
- }
- buf = malloc(buf_size+1);
- if (buf == NULL)
+ if (buf_size > 128 * 1024)
{
- EXTRACTOR_common_unzip_close_current_file(uf);
- EXTRACTOR_common_unzip_close(uf);
- return 0; /* out of memory */
+ /* too big to be meta-data! */
+ EXTRACTOR_common_unzip_close_current_file (uf);
+ EXTRACTOR_common_unzip_close (uf);
+ return;
}
-
- if (buf_size != EXTRACTOR_common_unzip_read_current_file(uf,buf,buf_size))
+ if (NULL == (buf = malloc (buf_size+1)))
{
- free(buf);
- EXTRACTOR_common_unzip_close_current_file(uf);
- EXTRACTOR_common_unzip_close(uf);
- return 0;
+ /* out of memory */
+ EXTRACTOR_common_unzip_close_current_file (uf);
+ EXTRACTOR_common_unzip_close (uf);
+ return;
}
- EXTRACTOR_common_unzip_close_current_file(uf);
+ if (buf_size != EXTRACTOR_common_unzip_read_current_file (uf, buf, buf_size))
+ {
+ EXTRACTOR_common_unzip_close_current_file (uf);
+ goto CLEANUP;
+ }
+ EXTRACTOR_common_unzip_close_current_file (uf);
/* we don't do "proper" parsing of the meta-data but rather use some heuristics
to get values out that we understand */
buf[buf_size] = '\0';
/* printf("%s\n", buf); */
/* try to find some of the typical OO xml headers */
- if ( (strstr(buf, "xmlns:meta=\"http://openoffice.org/2000/meta\"") != NULL) ||
- (strstr(buf, "xmlns:dc=\"http://purl.org/dc/elements/1.1/\"") != NULL) ||
- (strstr(buf, "xmlns:xlink=\"http://www.w3.org/1999/xlink\"") != NULL) ) {
- /* accept as meta-data */
- i = -1;
- while (tmap[++i].text != NULL) {
- char * spos;
- char * epos;
- char needle[256];
- int oc;
-
- pbuf = buf;
-
- while (1) {
- strcpy(needle, "<");
- strcat(needle, tmap[i].text);
- strcat(needle, ">");
- spos = strstr(pbuf, needle);
- if (NULL == spos) {
- strcpy(needle, tmap[i].text);
- strcat(needle, "=\"");
- spos = strstr(pbuf, needle);
- if (spos == NULL)
- break;
- spos += strlen(needle);
- epos = spos;
- while ( (epos[0] != '\0') &&
- (epos[0] != '"') )
- epos++;
- } else {
- oc = 0;
- spos += strlen(needle);
- while ( (spos[0] != '\0') &&
- ( (spos[0] == '<') ||
- (oc > 0) ) ) {
- if (spos[0] == '<')
- oc++;
- if (spos[0] == '>')
- oc--;
- spos++;
- }
- epos = spos;
- while ( (epos[0] != '\0') &&
- (epos[0] != '<') &&
- (epos[0] != '>') ) {
- epos++;
- }
+ if ( (strstr (buf, "xmlns:meta=\"http://openoffice.org/2000/meta\"") != NULL) ||
+ (strstr (buf, "xmlns:dc=\"http://purl.org/dc/elements/1.1/\"") != NULL) ||
+ (strstr (buf, "xmlns:xlink=\"http://www.w3.org/1999/xlink\"") != NULL) )
+ {
+ /* accept as meta-data */
+ for (i = 0; NULL != tmap[i].text; i++)
+ {
+ char * spos;
+ char * epos;
+ char needle[256];
+ int oc;
+
+ pbuf = buf;
+
+ while (1)
+ {
+ strcpy(needle, "<");
+ strcat(needle, tmap[i].text);
+ strcat(needle, ">");
+ spos = strstr(pbuf, needle);
+ if (NULL == spos)
+ {
+ strcpy(needle, tmap[i].text);
+ strcat(needle, "=\"");
+ spos = strstr(pbuf, needle);
+ if (spos == NULL)
+ break;
+ spos += strlen(needle);
+ epos = spos;
+ while ( (epos[0] != '\0') &&
+ (epos[0] != '"') )
+ epos++;
+ }
+ else
+ {
+ oc = 0;
+ spos += strlen(needle);
+ while ( (spos[0] != '\0') &&
+ ( (spos[0] == '<') ||
+ (oc > 0) ) )
+ {
+ if (spos[0] == '<')
+ oc++;
+ if (spos[0] == '>')
+ oc--;
+ spos++;
+ }
+ epos = spos;
+ while ( (epos[0] != '\0') &&
+ (epos[0] != '<') &&
+ (epos[0] != '>') )
+ {
+ epos++;
+ }
+ }
+ if (spos != epos)
+ {
+ char key[epos - spos + 1];
+
+ 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;
+ }
+ pbuf = epos;
+ }
+ else
+ break;
+ }
}
- if (spos != epos)
- {
- char key[epos - spos + 1];
-
- 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))
- {
- free(buf);
- EXTRACTOR_common_unzip_close(uf);
- return 1;
- }
- pbuf = epos;
- }
- else
- break;
- }
}
- }
- free(buf);
- EXTRACTOR_common_unzip_close(uf);
- return 0;
+ CLEANUP:
+ free (buf);
+ EXTRACTOR_common_unzip_close (uf);
}
-
+/* end of odf_extractor.c */
diff --git a/src/plugins/png_extractor.c b/src/plugins/png_extractor.c
@@ -1,10 +1,10 @@
/*
This file is part of libextractor.
- (C) 2002, 2003, 2004, 2005, 2009 Vidyut Samanta and Christian Grothoff
+ (C) 2002, 2003, 2004, 2005, 2009, 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
@@ -17,127 +17,194 @@
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
-
+/**
+ * @file plugins/png_extractor.c
+ * @brief plugin to support PNG files
+ * @author Christian Grothoff
+ */
#include "platform.h"
-#include "extractor.h"
#include <zlib.h>
+#include "extractor.h"
#include "convert.h"
-#include "extractor_plugins.h"
+/**
+ * Header that every PNG file must start with.
+ */
+#define PNG_HEADER "\211PNG\r\n\032\n"
+/**
+ * Function to create 0-terminated string from the
+ * first n characters of the given input.
+ *
+ * @param str input string
+ * @param n length of the input
+ * @return n-bytes from str followed by 0-termination, NULL on error
+ */
static char *
-stndup (const char *str, size_t n)
+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);
return tmp;
}
+
/**
* strnlen is GNU specific, let's redo it here to be
* POSIX compliant.
+ *
+ * @param str input string
+ * @param maxlen maximum length of str
+ * @return first position of 0-terminator in str, or maxlen
*/
static size_t
-stnlen (const char *str, size_t maxlen)
+stnlen (const char *str,
+ size_t maxlen)
{
size_t ret;
+
ret = 0;
- while ((ret < maxlen) && (str[ret] != '\0'))
+ while ( (ret < maxlen) &&
+ ('\0' != str[ret]) )
ret++;
return ret;
}
-static int
-getIntAt (const void *pos)
+/**
+ * Interpret the 4 bytes in 'buf' as a big-endian
+ * encoded 32-bit integer, convert and return.
+ *
+ * @param pos (unaligned) pointer to 4 byte integer
+ * @return converted integer in host byte order
+ */
+static uint32_t
+get_int_at (const void *pos)
{
- char p[4];
+ uint32_t i;
- memcpy (p, pos, 4); /* ensure alignment! */
- return *(int *) &p[0];
+ memcpy (&i, pos, sizeof (i));
+ return htonl (i);
}
+/**
+ * Map from PNG meta data descriptor strings
+ * to LE types.
+ */
static struct
{
- char *name;
+ /**
+ * PNG name.
+ */
+ const char *name;
+
+ /**
+ * Corresponding LE type.
+ */
enum EXTRACTOR_MetaType type;
} tagmap[] =
{
- { "Author", EXTRACTOR_METATYPE_AUTHOR_NAME},
- { "Description", EXTRACTOR_METATYPE_DESCRIPTION},
- { "Comment", EXTRACTOR_METATYPE_COMMENT},
- { "Copyright", EXTRACTOR_METATYPE_COPYRIGHT},
+ { "Author", EXTRACTOR_METATYPE_AUTHOR_NAME },
+ { "Description", EXTRACTOR_METATYPE_DESCRIPTION },
+ { "Comment", EXTRACTOR_METATYPE_COMMENT },
+ { "Copyright", EXTRACTOR_METATYPE_COPYRIGHT },
{ "Source", EXTRACTOR_METATYPE_SOURCE_DEVICE },
- { "Creation Time", EXTRACTOR_METATYPE_CREATION_DATE},
- { "Title", EXTRACTOR_METATYPE_TITLE},
- { "Software", EXTRACTOR_METATYPE_PRODUCED_BY_SOFTWARE},
- { "Disclaimer", EXTRACTOR_METATYPE_DISCLAIMER},
- { "Warning", EXTRACTOR_METATYPE_WARNING},
+ { "Creation Time", EXTRACTOR_METATYPE_CREATION_DATE },
+ { "Title", EXTRACTOR_METATYPE_TITLE },
+ { "Software", EXTRACTOR_METATYPE_PRODUCED_BY_SOFTWARE },
+ { "Disclaimer", EXTRACTOR_METATYPE_DISCLAIMER },
+ { "Warning", EXTRACTOR_METATYPE_WARNING },
+ { "Signature", EXTRACTOR_METATYPE_UNKNOWN },
{ NULL, EXTRACTOR_METATYPE_RESERVED }
};
-#define ADD(t,s) do { if (0 != (ret = proc (proc_cls, "png", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen(s)+1))) goto FINISH; } while (0)
-#define ADDF(t,s) do { if ( (s != NULL) && (0 != (ret = proc (proc_cls, "png", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen(s)+1))) ) { free(s); goto FINISH; } if (s != NULL) free (s); } while (0)
+/**
+ * Give the given metadata to LE. Set "ret" to 1 and
+ * goto 'FINISH' if LE says we are done.
+ *
+ * @param t type of the metadata
+ * @param s utf8 string with the metadata
+ */
+#define ADD(t,s) do { if (0 != (ret = ec->proc (ec->cls, "png", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen (s) + 1))) goto FINISH; } while (0)
+
+/**
+ * Give the given metadata to LE and free the memory. Set "ret" to 1 and
+ * goto 'FINISH' if LE says we are done.
+ *
+ * @param t type of the metadata
+ * @param s utf8 string with the metadata, to be freed afterwards
+ */
+#define ADDF(t,s) do { if ( (NULL != s) && (0 != (ret = ec->proc (ec->cls, "png", t, EXTRACTOR_METAFORMAT_UTF8, "text/plain", s, strlen (s) + 1))) ) { free (s); goto FINISH; } if (NULL != s) free (s); } while (0)
+
+/**
+ * Process EXt tag.
+ *
+ * @param ec extraction context
+ * @param length length of the tag
+ * @return 0 to continue extracting, 1 if we are done
+ */
static int
-processtEXt (struct EXTRACTOR_PluginList *plugin,
- unsigned int length,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+processtEXt (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t length)
{
+ void *ptr;
unsigned char *data;
char *keyword;
- unsigned int off;
- int i;
+ size_t off;
+ unsigned int i;
int ret;
- if (length != pl_read (plugin, &data, length))
+ if (length != ec->read (ec->cls, &ptr, length))
return 1;
-
- //data += 4;
+ data = ptr;
off = stnlen ((char*) data, length) + 1;
if (off >= length)
return 0; /* failed to find '\0' */
- keyword = EXTRACTOR_common_convert_to_utf8 ( (char*) &data[off], length - off, "ISO-8859-1");
- if (keyword == NULL)
+ if (NULL == (keyword = EXTRACTOR_common_convert_to_utf8 ((char*) &data[off],
+ length - off,
+ "ISO-8859-1")))
return 0;
- i = 0;
ret = 0;
- while (tagmap[i].name != NULL)
- {
- if (0 == strcmp (tagmap[i].name, (char*) data))
- {
- ADDF (tagmap[i].type, keyword);
- return 0;
- }
-
- i++;
- }
+ for (i = 0; NULL != tagmap[i].name; i++)
+ if (0 == strcmp (tagmap[i].name, (char*) data))
+ {
+ ADDF (tagmap[i].type, keyword);
+ return 0;
+ }
ADDF (EXTRACTOR_METATYPE_KEYWORDS, keyword);
FINISH:
return ret;
}
+
+/**
+ * Process iTXt tag.
+ *
+ * @param ec extraction context
+ * @param length length of the tag
+ * @return 0 to continue extracting, 1 if we are done
+ */
static int
-processiTXt (struct EXTRACTOR_PluginList *plugin,
- unsigned int length,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+processiTXt (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t length)
{
+ void *ptr;
unsigned char *data;
- unsigned int pos;
+ size_t pos;
char *keyword;
const char *language;
const char *translated;
- int i;
+ unsigned int i;
int compressed;
char *buf;
char *lan;
@@ -145,31 +212,27 @@ processiTXt (struct EXTRACTOR_PluginList *plugin,
int ret;
int zret;
- if (length != pl_read (plugin, &data, length))
+ if (length != ec->read (ec->cls, &ptr, length))
return 1;
-
- pos = stnlen ( (char*) data, length) + 1;
+ data = ptr;
+ pos = stnlen ((char *) data, length) + 1;
if (pos >= length)
return 0;
compressed = data[pos++];
- if (compressed && (data[pos++] != 0))
+ if (compressed && (0 != data[pos++]))
return 0; /* bad compression method */
- language = (char*) &data[pos];
+ language = (char *) &data[pos];
ret = 0;
- if (stnlen (language, length - pos) > 0)
- {
- lan = stndup (language, length - pos);
- ADDF (EXTRACTOR_METATYPE_LANGUAGE, lan);
- }
+ if ( (stnlen (language, length - pos) > 0) &&
+ (NULL != (lan = stndup (language, length - pos))) )
+ ADDF (EXTRACTOR_METATYPE_LANGUAGE, lan);
pos += stnlen (language, length - pos) + 1;
if (pos + 1 >= length)
return 0;
translated = (char*) &data[pos]; /* already in utf-8! */
- if (stnlen (translated, length - pos) > 0)
- {
- lan = stndup (translated, length - pos);
- ADDF (EXTRACTOR_METATYPE_KEYWORDS, lan);
- }
+ if ( (stnlen (translated, length - pos) > 0) &&
+ (NULL != (lan = stndup (translated, length - pos))) )
+ ADDF (EXTRACTOR_METATYPE_KEYWORDS, lan);
pos += stnlen (translated, length - pos) + 1;
if (pos >= length)
return 0;
@@ -187,22 +250,21 @@ processiTXt (struct EXTRACTOR_PluginList *plugin,
/* printf("zlib problem"); */
return 0;
}
- buf = malloc (bufLen);
- if (buf == NULL)
+ if (NULL == (buf = malloc (bufLen)))
{
/* printf("out of memory"); */
return 0; /* out of memory */
}
- zret = uncompress ((Bytef *) buf,
- &bufLen,
- (const Bytef *) &data[pos], length - pos);
- if (zret == Z_OK)
+ if (Z_OK ==
+ (zret = uncompress ((Bytef *) buf,
+ &bufLen,
+ (const Bytef *) &data[pos], length - pos)))
{
/* printf("zlib ok"); */
break;
}
free (buf);
- if (zret != Z_BUF_ERROR)
+ if (Z_BUF_ERROR != zret)
return 0; /* unknown error, abort */
}
keyword = stndup (buf, bufLen);
@@ -210,73 +272,82 @@ processiTXt (struct EXTRACTOR_PluginList *plugin,
}
else
{
- keyword = stndup ((char*) &data[pos], length - pos);
- }
- i = 0;
- while (tagmap[i].name != NULL)
- {
- if (0 == strcmp (tagmap[i].name, (char*) data))
- {
- ADDF (tagmap[i].type, keyword /* already in utf8 */);
- return 0;
- }
- i++;
+ keyword = stndup ((char *) &data[pos], length - pos);
}
+ if (NULL == keyword)
+ return ret;
+ for (i = 0; NULL != tagmap[i].name; i++)
+ if (0 == strcmp (tagmap[i].name, (char*) data))
+ {
+ ADDF (tagmap[i].type, keyword /* already in utf8 */);
+ return 0;
+ }
ADDF (EXTRACTOR_METATYPE_COMMENT, keyword);
FINISH:
return ret;
}
+/**
+ * Process IHDR tag.
+ *
+ * @param ec extraction context
+ * @param length length of the tag
+ * @return 0 to continue extracting, 1 if we are done
+ */
static int
-processIHDR (struct EXTRACTOR_PluginList *plugin,
- unsigned int length,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+processIHDR (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t length)
{
+ void *ptr;
unsigned char *data;
char tmp[128];
int ret;
if (length < 12)
return 0;
-
- if (length != pl_read (plugin, &data, length))
+ if (length != ec->read (ec->cls, &ptr, length))
return 1;
-
+ data = ptr;
ret = 0;
snprintf (tmp,
- sizeof(tmp),
+ sizeof (tmp),
"%ux%u",
- htonl (getIntAt (data)), htonl (getIntAt (&data[4])));
+ get_int_at (data), get_int_at (&data[4]));
ADD (EXTRACTOR_METATYPE_IMAGE_DIMENSIONS, tmp);
FINISH:
return ret;
}
+
+/**
+ * Process zTXt tag.
+ *
+ * @param ec extraction context
+ * @param length length of the tag
+ * @return 0 to continue extracting, 1 if we are done
+ */
static int
-processzTXt (struct EXTRACTOR_PluginList *plugin,
- unsigned int length,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+processzTXt (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t length)
{
+ void *ptr;
unsigned char *data;
char *keyword;
- unsigned int off;
- int i;
+ size_t off;
+ unsigned int i;
char *buf;
uLongf bufLen;
int zret;
int ret;
- if (length != pl_read (plugin, &data, length))
+ if (length != ec->read (ec->cls, &ptr, length))
return 1;
-
- //data += 4;
- off = stnlen ( (char*) data, length) + 1;
+ data = ptr;
+ off = stnlen ((char *) data, length) + 1;
if (off >= length)
return 0; /* failed to find '\0' */
- if (data[off] != 0)
+ if (0 != data[off])
return 0; /* compression method must be 0 */
off++;
ret = 0;
@@ -291,46 +362,52 @@ processzTXt (struct EXTRACTOR_PluginList *plugin,
/* printf("zlib problem"); */
return 0;
}
- buf = malloc (bufLen);
- if (buf == NULL)
+ if (NULL == (buf = malloc (bufLen)))
{
/* printf("out of memory"); */
return 0; /* out of memory */
}
- zret = uncompress ((Bytef *) buf,
- &bufLen, (const Bytef *) &data[off], length - off);
- if (zret == Z_OK)
+ if (Z_OK ==
+ (zret = uncompress ((Bytef *) buf,
+ &bufLen,
+ (const Bytef *) &data[off],
+ length - off)))
{
/* printf("zlib ok"); */
break;
}
free (buf);
- if (zret != Z_BUF_ERROR)
+ if (Z_BUF_ERROR != zret)
return 0; /* unknown error, abort */
}
- keyword = EXTRACTOR_common_convert_to_utf8 (buf, bufLen, "ISO-8859-1");
+ keyword = EXTRACTOR_common_convert_to_utf8 (buf,
+ bufLen,
+ "ISO-8859-1");
free (buf);
- i = 0;
- while (tagmap[i].name != NULL)
- {
- if (0 == strcmp (tagmap[i].name, (char*) data))
- {
- ADDF (tagmap[i].type, keyword);
- return 0;
- }
- i++;
- }
+ for (i = 0; NULL != tagmap[i].name; i++)
+ if (0 == strcmp (tagmap[i].name, (char*) data))
+ {
+ ADDF (tagmap[i].type, keyword);
+ return 0;
+ }
ADDF (EXTRACTOR_METATYPE_COMMENT, keyword);
FINISH:
return ret;
}
+
+/**
+ * Process IME tag.
+ *
+ * @param ec extraction context
+ * @param length length of the tag
+ * @return 0 to continue extracting, 1 if we are done
+ */
static int
-processtIME (struct EXTRACTOR_PluginList *plugin,
- unsigned int length,
- EXTRACTOR_MetaDataProcessor proc,
- void *proc_cls)
+processtIME (struct EXTRACTOR_ExtractContext *ec,
+ uint32_t length)
{
+ void *ptr;
unsigned char *data;
unsigned short y;
unsigned int year;
@@ -344,12 +421,11 @@ processtIME (struct EXTRACTOR_PluginList *plugin,
if (length != 7)
return 0;
-
- if (length != pl_read (plugin, &data, length))
+ if (length != ec->read (ec->cls, &ptr, length))
return 1;
-
+ data = ptr;
ret = 0;
- memcpy (&y, data, sizeof (unsigned short));
+ memcpy (&y, data, sizeof (uint16_t));
year = ntohs (y);
mo = (unsigned char) data[6];
day = (unsigned char) data[7];
@@ -357,66 +433,63 @@ processtIME (struct EXTRACTOR_PluginList *plugin,
m = (unsigned char) data[9];
s = (unsigned char) data[10];
snprintf (val,
- sizeof(val),
- "%04u-%02u-%02u %02d:%02d:%02d", year, mo, day, h, m, s);
+ sizeof (val),
+ "%04u-%02u-%02u %02d:%02d:%02d",
+ year, mo, day, h, m, s);
ADD (EXTRACTOR_METATYPE_MODIFICATION_DATE, val);
FINISH:
return ret;
}
-#define PNG_HEADER "\211PNG\r\n\032\n"
-
-
-int
-EXTRACTOR_png_extract_method (struct EXTRACTOR_PluginList *plugin,
- EXTRACTOR_MetaDataProcessor proc, void *proc_cls)
+/**
+ * Main entry method for the 'image/png' extraction plugin.
+ *
+ * @param ec extraction context provided to the plugin
+ */
+void
+EXTRACTOR_png_extract_method (struct EXTRACTOR_ExtractContext *ec)
{
- unsigned char *data;
- unsigned int length;
+ void *data;
+ uint32_t length;
int64_t pos;
int ret;
+ ssize_t len;
- if (plugin == NULL)
- return 1;
-
- ret = strlen (PNG_HEADER);
-
- if (ret != pl_read (plugin, &data, ret))
- return 1;
-
- if (0 != strncmp ((char*) data, PNG_HEADER, ret))
- return 1;
-
+ len = strlen (PNG_HEADER);
+ if (len != ec->read (ec->cls, &data, len))
+ return;
+ if (0 != strncmp ((const char*) data, PNG_HEADER, len))
+ return;
ADD (EXTRACTOR_METATYPE_MIMETYPE, "image/png");
ret = 0;
- while (ret == 0)
+ while (0 == ret)
{
- if (4 != pl_read (plugin, &data, 4))
+ if (sizeof (uint32_t) + 4 != ec->read (ec->cls,
+ &data,
+ sizeof (uint32_t) + 4))
break;
- length = htonl (getIntAt (data));
- /* printf("Length: %u, pos %u\n", length, pos - data); */
- if (4 != pl_read (plugin, &data, 4))
- break;
- pos = pl_get_pos (plugin);
- if (pos <= 0)
+ length = get_int_at (data);
+ if (0 > (pos = ec->seek (ec->cls, 0, SEEK_CUR)))
break;
pos += length + 4; /* Chunk type, data, crc */
- if (0 == strncmp ((char*) data, "IHDR", 4))
- ret = processIHDR (plugin, length, proc, proc_cls);
- if (0 == strncmp ((char*) data, "iTXt", 4))
- ret = processiTXt (plugin, length, proc, proc_cls);
- if (0 == strncmp ((char*)data, "tEXt", 4))
- ret = processtEXt (plugin, length, proc, proc_cls);
- if (0 == strncmp ((char*) data, "zTXt", 4))
- ret = processzTXt (plugin, length, proc, proc_cls);
- if (0 == strncmp ((char*) data, "tIME", 4))
- ret = processtIME (plugin, length, proc, proc_cls);
+ if (0 == strncmp ((char*) data + sizeof (uint32_t), "IHDR", 4))
+ ret = processIHDR (ec, length);
+ if (0 == strncmp ((char*) data + sizeof (uint32_t), "iTXt", 4))
+ ret = processiTXt (ec, length);
+ if (0 == strncmp ((char*) data + sizeof (uint32_t), "tEXt", 4))
+ ret = processtEXt (ec, length);
+ if (0 == strncmp ((char*) data + sizeof (uint32_t), "zTXt", 4))
+ ret = processzTXt (ec, length);
+ if (0 == strncmp ((char*) data + sizeof (uint32_t), "tIME", 4))
+ ret = processtIME (ec, length);
if (ret != 0)
break;
- if (pos != pl_seek (plugin, pos, SEEK_SET))
+ if (pos != ec->seek (ec->cls, pos, SEEK_SET))
break;
}
FINISH:
- return 1;
+ return;
}
+
+/* end of png_extractor.c */
diff --git a/src/plugins/test_jpeg.c b/src/plugins/test_jpeg.c
@@ -19,7 +19,7 @@
*/
/**
* @file plugins/test_jpeg.c
- * @brief testcase for ogg plugin
+ * @brief testcase for jpeg plugin
* @author Christian Grothoff
*/
#include "platform.h"
diff --git a/src/plugins/test_png.c b/src/plugins/test_png.c
@@ -0,0 +1,84 @@
+/*
+ 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_png.c
+ * @brief testcase for png plugin
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "test_lib.h"
+
+
+/**
+ * Main function for the PNG testcase.
+ *
+ * @param argc number of arguments (ignored)
+ * @param argv arguments (ignored)
+ * @return 0 on success
+ */
+int
+main (int argc, char *argv[])
+{
+ struct SolutionData png_image_sol[] =
+ {
+ {
+ EXTRACTOR_METATYPE_MIMETYPE,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "image/png",
+ strlen ("image/png") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_IMAGE_DIMENSIONS,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "4x4",
+ strlen ("4x4") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_COMMENT,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "Testing keyword extraction\n",
+ strlen ("Testing keyword extraction\n") + 1,
+ 0
+ },
+ {
+ EXTRACTOR_METATYPE_UNKNOWN,
+ EXTRACTOR_METAFORMAT_UTF8,
+ "text/plain",
+ "dc6c58c971715e8043baef058b675eec",
+ strlen ("dc6c58c971715e8043baef058b675eec") + 1,
+ 0
+ },
+ { 0, 0, NULL, NULL, 0, -1 }
+ };
+ struct ProblemSet ps[] =
+ {
+ { "testdata/png_image.png",
+ png_image_sol },
+ { NULL, NULL }
+ };
+ return ET_main ("png", ps);
+}
+
+/* end of test_png.c */
diff --git a/test/test.png b/src/plugins/testdata/png_image.png
Binary files differ.
