/* checks if TIF with tag and type ASCII */
ret_t check_tag_has_valid_asciivalue(ctiff_t * ctif, tag_t tag) {
tifp_check( ctif);
TIFFDataType datatype = TIFFGetRawTagType( ctif, tag );
#ifdef DEBUG
printf("### datatype=%i \n", datatype);
#endif
char *string=NULL;
uint32 count=0;
int r = 0;
if (datatype == TIFF_ASCII) {
//printf("check if tag %u (%s) has valid asciivalue\n", tag, TIFFTagName(tif, tag));
tif_rules_tag(tag, "has valid asciivalue");
int found=TIFFGetField(ctif->tif, tag, &string, &count);
if (1==found) { /* there exists a tag */
for (int i=0; i<count; i++) {
if (string[i] == '\0') {
r = i+1;
break;
}
}
}
}
if (0 != r) {
char array[VALUESTRLEN];
snprintf(array, sizeof(array), "incorrect asciivalue (\\0 at position %i in %i-len String)", r, count);
return tif_fails_tag( tag, "", array);
} else {
ret_t res;
res.returnmsg=NULL;
res.returncode=0;
return res;
}
}
ret_t check_tag_has_value(ctiff_t * ctif, tag_t tag, unsigned int value) {
// printf("check if tag %u (%s) has value %u\n", tag, TIFFTagName( tag), value);
tifp_check( ctif);
tif_rules_tag(tag, "has value");
ret_t ret;
ret = check_tag_has_valid_type( ctif, tag);
if (ret.returncode == 0) {
ret = check_tag_has_value_quiet( ctif, tag, value);
if (ret.returncode == 0) {
return ret;
}
}
return tif_fails_by_returns( ret );
}
/* check if offsets are greater zero */
ret_t check_all_offsets_are_greater_zero(ctiff_t * ctif) {
GET_EMPTY_RET(ret)
tifp_check( ctif);
int count = get_ifd0_count( ctif);
int tagidx;
for (tagidx = 0; tagidx< count; tagidx++) {
ifd_entry_t ifd_entry = TIFFGetRawTagIFDListEntry( ctif, tagidx );
uint32 tag = TIFFGetRawTagListEntry( ctif, tagidx);
if (ifd_entry.value_or_offset==is_offset || tag == TIFFTAG_EXIFIFD) {
uint32 offset=0;
if (ifd_entry.value_or_offset==is_offset) offset = ifd_entry.data32offset;
else if (tag == TIFFTAG_EXIFIFD) {
if (ifd_entry.count > 1) {
ret = set_value_found_ret(&ret, int2str(ifd_entry.count));
ret.returncode = tagerror_expected_count_isgreaterone;
return ret;
}
switch (ifd_entry.datatype) {
case TIFF_LONG: { /* correct type */
offset = ifd_entry.data32;
break;
}
default: { /* incorrect type for EXIF IFD */
ret = set_value_found_ret(&ret, TIFFTypeName(ifd_entry.datatype));
ret.returncode = tagerror_unexpected_type_found;
return ret;
/* break; */
};
}
} /* end else if tag == TIFFTAG_EXIFIFD */
if ( 0 == offset) {
// FIXME: tif_fails?
char array[TIFFAILSTRLEN];
snprintf(array, sizeof(array), "tag %u pointing to 0x%08x", tag, offset);
ret = set_value_found_ret (&ret, array);
ret.returncode = tagerror_offset_is_zero;
return ret;
}
}
}
ret.returncode=is_valid;
return ret;
}
/* checks if TIF has a specified tag */
ret_t check_tag_has_valid_type(ctiff_t * ctif, tag_t tag) {
//printf("check if tag %u (%s) has valid type\n", tag, TIFFTagName(tif, tag));
tifp_check( ctif);
tif_rules_tag(tag, "has valid type");
TIFFDataType datatype = TIFFGetRawTagType( ctif, tag );
#ifdef DEBUG
printf("### datatype=%i \n", datatype);
#endif
int res = 0;
switch (tag) {
case TIFFTAG_ARTIST: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_BADFAXLINES: res=(datatype == TIFF_LONG); break;
case TIFFTAG_BITSPERSAMPLE: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_CELLLENGTH: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_CELLWIDTH: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_COLORMAP: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_COMPRESSION: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_COPYRIGHT: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_DATETIME: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_DOCUMENTNAME: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_DOTRANGE: res=(datatype == TIFF_BYTE) || (datatype == TIFF_SHORT);; break;
case TIFFTAG_EXTRASAMPLES: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_FILLORDER: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_FREEBYTECOUNTS: res=(datatype == TIFF_LONG); break;
case TIFFTAG_FREEOFFSETS: res=(datatype == TIFF_LONG); break;
case TIFFTAG_GRAYRESPONSECURVE: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_GRAYRESPONSEUNIT: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_HALFTONEHINTS: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_HOSTCOMPUTER: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_ICCPROFILE: res=(datatype == TIFF_UNDEFINED); break;
case TIFFTAG_IMAGEDEPTH: res=(datatype == TIFF_LONG); break;
case TIFFTAG_IMAGEDESCRIPTION: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_IMAGELENGTH: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT);; break;
case TIFFTAG_IMAGEWIDTH: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT);; break;
case TIFFTAG_INKNAMES: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_INKSET: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_JPEGPROC: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_MAKE: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_MAXSAMPLEVALUE: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_MINSAMPLEVALUE: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_MODEL: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_NUMBEROFINKS: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_ORIENTATION: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_OSUBFILETYPE: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_PAGENUMBER: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_PHOTOMETRIC: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_PLANARCONFIG: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_PREDICTOR: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_PRIMARYCHROMATICITIES: res=(datatype == TIFF_RATIONAL); break;
case TIFFTAG_REFERENCEBLACKWHITE: res=(datatype == TIFF_LONG); break;
case TIFFTAG_RESOLUTIONUNIT: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_ROWSPERSTRIP: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT); break;
case TIFFTAG_SAMPLEFORMAT: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_SAMPLESPERPIXEL: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_SMAXSAMPLEVALUE: res=(datatype == TIFF_ANY); break;
case TIFFTAG_SMINSAMPLEVALUE: res=(datatype == TIFF_ANY); break;
case TIFFTAG_SOFTWARE: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_STRIPBYTECOUNTS: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT); break;
case TIFFTAG_STRIPOFFSETS: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT); break;
case TIFFTAG_SUBFILETYPE: res=(datatype == TIFF_LONG); break;
case TIFFTAG_T4OPTIONS: res=(datatype == TIFF_LONG); break;
case TIFFTAG_T6OPTIONS: res=(datatype == TIFF_LONG); break;
case TIFFTAG_TARGETPRINTER: res=(datatype == TIFF_ASCII); break;
case TIFFTAG_THRESHHOLDING: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_TILEBYTECOUNTS: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT); break;
case TIFFTAG_TILELENGTH: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT); break;
case TIFFTAG_TILEOFFSETS: res=(datatype == TIFF_LONG); break;
case TIFFTAG_TILEWIDTH: res=(datatype == TIFF_LONG) || (datatype == TIFF_SHORT); break;
case TIFFTAG_TRANSFERFUNCTION: res=(datatype == TIFF_SHORT); break;
case TIFFTAG_WHITEPOINT: res=(datatype == TIFF_RATIONAL); break;
case TIFFTAG_XRESOLUTION: res=(datatype == TIFF_RATIONAL); break;
case TIFFTAG_YRESOLUTION: res=(datatype == TIFF_RATIONAL); break;
default: res = 1;
}
if (!res) {
char array[VALUESTRLEN];
snprintf(array, sizeof(array), "with incorrect type: %i", datatype);
return tif_returns( tag, "", array);
} else {
ret_t tmp_res;
tmp_res.returnmsg=NULL;
tmp_res.returncode=0;
return tmp_res;
}
/* we check only count, because we evaluate only int-values */
}