RPFToc* RPFTOCReadFromBuffer(const char* pszFilename, VSILFILE* fp, const char* tocHeader)
{
tocHeader += 1; /* skip endian */
tocHeader += 2; /* skip header length */
tocHeader += 12; /* skip file name : this should be A.TOC (padded) */
tocHeader += 1; /* skip new */
tocHeader += 15; /* skip standard_num */
tocHeader += 8; /* skip standard_date */
tocHeader += 1; /* skip classification */
tocHeader += 2; /* skip country */
tocHeader += 2; /* skip release */
unsigned int locationSectionPhysicalLocation;
memcpy(&locationSectionPhysicalLocation, tocHeader, sizeof(unsigned int));
CPL_MSBPTR32(&locationSectionPhysicalLocation);
if( VSIFSeekL( fp, locationSectionPhysicalLocation, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to locationSectionPhysicalLocation at offset %d.",
locationSectionPhysicalLocation );
return nullptr;
}
int nSections;
NITFLocation* pasLocations = NITFReadRPFLocationTable(fp, &nSections);
unsigned int boundaryRectangleSectionSubHeaderPhysIndex = 0;
unsigned int boundaryRectangleTablePhysIndex = 0;
unsigned int frameFileIndexSectionSubHeaderPhysIndex = 0;
unsigned int frameFileIndexSubsectionPhysIndex = 0;
for( int i = 0; i < nSections; i++ )
{
if (pasLocations[i].nLocId == LID_BoundaryRectangleSectionSubheader)
{
boundaryRectangleSectionSubHeaderPhysIndex = pasLocations[i].nLocOffset;
}
else if (pasLocations[i].nLocId == LID_BoundaryRectangleTable)
{
boundaryRectangleTablePhysIndex = pasLocations[i].nLocOffset;
}
else if (pasLocations[i].nLocId == LID_FrameFileIndexSectionSubHeader)
{
frameFileIndexSectionSubHeaderPhysIndex = pasLocations[i].nLocOffset;
}
else if (pasLocations[i].nLocId == LID_FrameFileIndexSubsection)
{
frameFileIndexSubsectionPhysIndex = pasLocations[i].nLocOffset;
}
}
CPLFree(pasLocations);
if (boundaryRectangleSectionSubHeaderPhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_BoundaryRectangleSectionSubheader." );
return nullptr;
}
if (boundaryRectangleTablePhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_BoundaryRectangleTable." );
return nullptr;
}
if (frameFileIndexSectionSubHeaderPhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_FrameFileIndexSectionSubHeader." );
return nullptr;
}
if (frameFileIndexSubsectionPhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_FrameFileIndexSubsection." );
return nullptr;
}
if( VSIFSeekL( fp, boundaryRectangleSectionSubHeaderPhysIndex, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to boundaryRectangleSectionSubHeaderPhysIndex at offset %d.",
boundaryRectangleSectionSubHeaderPhysIndex );
return nullptr;
}
unsigned int boundaryRectangleTableOffset;
bool bOK = VSIFReadL( &boundaryRectangleTableOffset, sizeof(boundaryRectangleTableOffset), 1, fp) == 1;
CPL_MSBPTR32( &boundaryRectangleTableOffset );
unsigned short boundaryRectangleCount;
bOK &= VSIFReadL( &boundaryRectangleCount, sizeof(boundaryRectangleCount), 1, fp) == 1;
CPL_MSBPTR16( &boundaryRectangleCount );
if( !bOK || VSIFSeekL( fp, boundaryRectangleTablePhysIndex, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to boundaryRectangleTablePhysIndex at offset %d.",
boundaryRectangleTablePhysIndex );
return nullptr;
}
RPFToc* toc = reinterpret_cast<RPFToc *>( CPLMalloc( sizeof( RPFToc ) ) );
toc->nEntries = boundaryRectangleCount;
toc->entries = reinterpret_cast<RPFTocEntry *>(
CPLMalloc( boundaryRectangleCount * sizeof(RPFTocEntry) ) );
memset(toc->entries, 0, boundaryRectangleCount * sizeof(RPFTocEntry));
for( int i = 0; i < toc->nEntries; i++ )
{
toc->entries[i].isOverviewOrLegend = 0;
bOK &= VSIFReadL( toc->entries[i].type, 1, 5, fp) == 5;
toc->entries[i].type[5] = 0;
RPFTOCTrim(toc->entries[i].type);
bOK &= VSIFReadL( toc->entries[i].compression, 1, 5, fp) == 5;
toc->entries[i].compression[5] = 0;
RPFTOCTrim(toc->entries[i].compression);
bOK &= VSIFReadL( toc->entries[i].scale, 1, 12, fp) == 12;
toc->entries[i].scale[12] = 0;
RPFTOCTrim(toc->entries[i].scale);
if (toc->entries[i].scale[0] == '1' &&
toc->entries[i].scale[1] == ':')
{
memmove(toc->entries[i].scale,
toc->entries[i].scale+2,
strlen(toc->entries[i].scale+2)+1);
}
bOK &= VSIFReadL( toc->entries[i].zone, 1, 1, fp) == 1;
toc->entries[i].zone[1] = 0;
RPFTOCTrim(toc->entries[i].zone);
bOK &= VSIFReadL( toc->entries[i].producer, 1, 5, fp) == 5;
toc->entries[i].producer[5] = 0;
RPFTOCTrim(toc->entries[i].producer);
bOK &= VSIFReadL( &toc->entries[i].nwLat, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].nwLat);
bOK &= VSIFReadL( &toc->entries[i].nwLong, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].nwLong);
bOK &= VSIFReadL( &toc->entries[i].swLat, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].swLat);
bOK &= VSIFReadL( &toc->entries[i].swLong, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].swLong);
bOK &= VSIFReadL( &toc->entries[i].neLat, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].neLat);
bOK &= VSIFReadL( &toc->entries[i].neLong, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].neLong);
bOK &= VSIFReadL( &toc->entries[i].seLat, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].seLat);
bOK &= VSIFReadL( &toc->entries[i].seLong, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].seLong);
bOK &= VSIFReadL( &toc->entries[i].vertResolution, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].vertResolution);
bOK &= VSIFReadL( &toc->entries[i].horizResolution, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].horizResolution);
bOK &= VSIFReadL( &toc->entries[i].vertInterval, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].vertInterval);
bOK &= VSIFReadL( &toc->entries[i].horizInterval, sizeof(double), 1, fp) == 1;
CPL_MSBPTR64( &toc->entries[i].horizInterval);
bOK &= VSIFReadL( &toc->entries[i].nVertFrames, sizeof(int), 1, fp) == 1;
CPL_MSBPTR32( &toc->entries[i].nVertFrames );
bOK &= VSIFReadL( &toc->entries[i].nHorizFrames, sizeof(int), 1, fp) == 1;
CPL_MSBPTR32( &toc->entries[i].nHorizFrames );
if( !bOK )
{
CPLError(CE_Failure, CPLE_FileIO, "I/O error");
toc->entries[i].nVertFrames = 0;
toc->entries[i].nHorizFrames = 0;
RPFTOCFree(toc);
return nullptr;
}
if( toc->entries[i].vertInterval <= 1e-10 ||
!CPLIsFinite(toc->entries[i].vertInterval) ||
toc->entries[i].horizInterval <= 1e-10 ||
!CPLIsFinite(toc->entries[i].horizInterval) ||
!(fabs(toc->entries[i].seLong) <= 360.0) ||
!(fabs(toc->entries[i].nwLong) <= 360.0) ||
!(fabs(toc->entries[i].nwLat) <= 90.0) ||
!(fabs(toc->entries[i].seLat) <= 90.0) ||
toc->entries[i].seLong < toc->entries[i].nwLong ||
toc->entries[i].nwLat < toc->entries[i].seLat ||
toc->entries[i].nHorizFrames == 0 ||
toc->entries[i].nVertFrames == 0 ||
toc->entries[i].nHorizFrames > INT_MAX / toc->entries[i].nVertFrames )
{
CPLError(CE_Failure, CPLE_FileIO, "Invalid TOC entry");
toc->entries[i].nVertFrames = 0;
toc->entries[i].nHorizFrames = 0;
RPFTOCFree(toc);
return nullptr;
}
// TODO: We could probably use another data structure, like a list,
// instead of an array referenced by the frame coordinate...
if( static_cast<int>(toc->entries[i].nHorizFrames *
toc->entries[i].nVertFrames) >
atoi(CPLGetConfigOption("RPFTOC_MAX_FRAME_COUNT", "1000000")) )
{
CPLError(CE_Failure, CPLE_AppDefined,
"nHorizFrames=%d x nVertFrames=%d > %d. Please raise "
"the value of the RPFTOC_MAX_FRAME_COUNT configuration "
"option to more than %d if this dataset is legitimate.",
toc->entries[i].nHorizFrames, toc->entries[i].nVertFrames,
atoi(CPLGetConfigOption("RPFTOC_MAX_FRAME_COUNT", "1000000")),
toc->entries[i].nHorizFrames * toc->entries[i].nVertFrames );
toc->entries[i].frameEntries = nullptr;
}
else
{
toc->entries[i].frameEntries = reinterpret_cast<RPFTocFrameEntry*>(
VSI_CALLOC_VERBOSE( toc->entries[i].nVertFrames * toc->entries[i].nHorizFrames,
sizeof(RPFTocFrameEntry) ) );
}
if (toc->entries[i].frameEntries == nullptr)
{
toc->entries[i].nVertFrames = 0;
toc->entries[i].nHorizFrames = 0;
RPFTOCFree(toc);
return nullptr;
}
CPLDebug("RPFTOC", "[%d] type=%s, compression=%s, scale=%s, zone=%s, producer=%s, nVertFrames=%d, nHorizFrames=%d",
i, toc->entries[i].type, toc->entries[i].compression, toc->entries[i].scale,
toc->entries[i].zone, toc->entries[i].producer, toc->entries[i].nVertFrames, toc->entries[i].nHorizFrames);
}
if( VSIFSeekL( fp, frameFileIndexSectionSubHeaderPhysIndex, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to frameFileIndexSectionSubHeaderPhysIndex at offset %d.",
frameFileIndexSectionSubHeaderPhysIndex );
RPFTOCFree(toc);
return nullptr;
}
/* Skip 1 byte security classification */
bOK &= VSIFSeekL( fp, 1, SEEK_CUR ) == 0;
unsigned int frameIndexTableOffset;
bOK &= VSIFReadL( &frameIndexTableOffset, sizeof(frameIndexTableOffset), 1, fp) == 1;
CPL_MSBPTR32( &frameIndexTableOffset );
unsigned int nFrameFileIndexRecords;
bOK &= VSIFReadL( &nFrameFileIndexRecords, sizeof(nFrameFileIndexRecords), 1, fp) == 1;
CPL_MSBPTR32( &nFrameFileIndexRecords );
unsigned short nFrameFilePathnameRecords;
bOK &= VSIFReadL( &nFrameFilePathnameRecords, sizeof(nFrameFilePathnameRecords), 1, fp) == 1;
CPL_MSBPTR16( &nFrameFilePathnameRecords );
unsigned short frameFileIndexRecordLength;
bOK &= VSIFReadL( &frameFileIndexRecordLength, sizeof(frameFileIndexRecordLength), 1, fp) == 1;
CPL_MSBPTR16( &frameFileIndexRecordLength );
if( frameFileIndexRecordLength < 3 * sizeof(short) )
{
CPLError(CE_Failure, CPLE_FileIO, "Invalid file");
RPFTOCFree(toc);
return nullptr;
}
if( !bOK )
{
CPLError(CE_Failure, CPLE_FileIO, "I/O error");
RPFTOCFree(toc);
return nullptr;
}
int newBoundaryId = 0;
for( int i = 0; i < static_cast<int>( nFrameFileIndexRecords ); i++ )
{
if( VSIFSeekL( fp, frameFileIndexSubsectionPhysIndex + frameFileIndexRecordLength * i, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to frameFileIndexSubsectionPhysIndex(%d) at offset %d.",
i, frameFileIndexSubsectionPhysIndex + frameFileIndexRecordLength * i);
RPFTOCFree(toc);
return nullptr;
}
unsigned short boundaryId;
if( VSIFReadL( &boundaryId, sizeof(boundaryId), 1, fp) != 1 )
{
CPLError(CE_Failure, CPLE_FileIO, "I/O error");
RPFTOCFree(toc);
return nullptr;
}
CPL_MSBPTR16( &boundaryId );
if (i == 0 && boundaryId == 0)
newBoundaryId = 1;
if (newBoundaryId == 0)
boundaryId--;
if (boundaryId >= toc->nEntries)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Bad boundary id (%d) for frame file index %d.",
boundaryId, i);
RPFTOCFree(toc);
return nullptr;
}
RPFTocEntry* entry = &toc->entries[boundaryId];
entry->boundaryId = boundaryId;
unsigned short frameRow;
bOK &= VSIFReadL( &frameRow, sizeof(frameRow), 1, fp) == 1;
CPL_MSBPTR16( &frameRow );
unsigned short frameCol;
bOK &= VSIFReadL( &frameCol, sizeof(frameCol), 1, fp) == 1;
CPL_MSBPTR16( &frameCol );
if( !bOK )
{
CPLError(CE_Failure, CPLE_FileIO, "I/O error");
RPFTOCFree(toc);
return nullptr;
}
if (newBoundaryId == 0)
{
frameRow--;
frameCol--;
}
else
{
/* Trick so that frames are numbered north to south */
frameRow = (unsigned short)((entry->nVertFrames-1) - frameRow);
}
if (frameRow >= entry->nVertFrames)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Bad row num (%d) for frame file index %d.",
frameRow, i);
RPFTOCFree(toc);
return nullptr;
}
if (frameCol >= entry->nHorizFrames)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Bad col num (%d) for frame file index %d.",
frameCol, i);
RPFTOCFree(toc);
return nullptr;
}
RPFTocFrameEntry* frameEntry
= &entry->frameEntries[frameRow * entry->nHorizFrames + frameCol ];
frameEntry->frameRow = frameRow;
frameEntry->frameCol = frameCol;
if (frameEntry->exists)
{
CPLError( CE_Warning, CPLE_AppDefined,
"Frame entry(%d,%d) for frame file index %d was already found.",
frameRow, frameCol, i);
CPLFree(frameEntry->directory);
frameEntry->directory = nullptr;
CPLFree(frameEntry->fullFilePath);
frameEntry->fullFilePath = nullptr;
frameEntry->exists = 0;
}
unsigned int offsetFrameFilePathName;
bOK &= VSIFReadL( &offsetFrameFilePathName, sizeof(offsetFrameFilePathName), 1, fp) == 1;
CPL_MSBPTR32( &offsetFrameFilePathName );
bOK &= VSIFReadL( frameEntry->filename, 1, 12, fp) == 12;
if( !bOK )
{
CPLError(CE_Failure, CPLE_FileIO, "I/O error");
RPFTOCFree(toc);
return nullptr;
}
frameEntry->filename[12] = '\0';
bOK &= strlen(frameEntry->filename) > 0;
/* Check if the filename is an overview or legend */
for( int j = 0; j < 12; j++ )
{
if (strcmp(&(frameEntry->filename[j]),".OVR") == 0 ||
strcmp(&(frameEntry->filename[j]),".ovr") == 0 ||
strcmp(&(frameEntry->filename[j]),".LGD") == 0 ||
strcmp(&(frameEntry->filename[j]),".lgd") == 0)
{
entry->isOverviewOrLegend = TRUE;
break;
}
}
/* Extract series code */
if (entry->seriesAbbreviation == nullptr)
{
const NITFSeries* series = NITFGetSeriesInfo(frameEntry->filename);
if (series)
{
entry->seriesAbbreviation = series->abbreviation;
entry->seriesName = series->name;
}
}
/* Get file geo reference */
bOK &= VSIFReadL( frameEntry->georef, 1, 6, fp) == 6;
frameEntry->georef[6] = '\0';
/* Go to start of pathname record */
/* New path_off offset from start of frame file index section of TOC?? */
/* Add pathoffset wrt frame file index table subsection (loc[3]) */
if( !bOK || VSIFSeekL( fp, frameFileIndexSubsectionPhysIndex + offsetFrameFilePathName, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to "
"frameFileIndexSubsectionPhysIndex + "
"offsetFrameFilePathName(%d) at offset %d.",
i, frameFileIndexSubsectionPhysIndex + offsetFrameFilePathName);
RPFTOCFree(toc);
return nullptr;
}
unsigned short pathLength;
bOK &= VSIFReadL( &pathLength, sizeof(pathLength), 1, fp) == 1;
CPL_MSBPTR16( &pathLength );
/* if nFrameFileIndexRecords == 65535 and pathLength == 65535 for each record,
this leads to 4 GB allocation... Protect against this case */
if (!bOK || pathLength == 0 || pathLength > 256)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Path length is invalid : %d. Probably corrupted TOC file.",
static_cast<int>( pathLength ) );
RPFTOCFree(toc);
return nullptr;
}
frameEntry->directory = reinterpret_cast<char *>( CPLMalloc(pathLength+1) );
bOK &= VSIFReadL( frameEntry->directory, 1, pathLength, fp) == pathLength;
if( !bOK )
{
CPLError(CE_Failure, CPLE_FileIO, "I/O error");
RPFTOCFree(toc);
return nullptr;
}
frameEntry->directory[pathLength] = 0;
if (pathLength > 0 && frameEntry->directory[pathLength-1] == '/')
frameEntry->directory[pathLength-1] = 0;
if (frameEntry->directory[0] == '.' && frameEntry->directory[1] == '/')
{
memmove(frameEntry->directory, frameEntry->directory+2, strlen(frameEntry->directory+2)+1);
// Some A.TOC have subdirectory names like ".//X/" ... (#5979)
// Check if it was not intended to be "./X/" instead.
VSIStatBufL sStatBuf;
if( frameEntry->directory[0] == '/' &&
VSIStatL(CPLFormFilename(CPLGetDirname(pszFilename), frameEntry->directory+1, nullptr), &sStatBuf) == 0 &&
VSI_ISDIR(sStatBuf.st_mode) )
{
memmove(frameEntry->directory, frameEntry->directory+1, strlen(frameEntry->directory+1)+1);
}
}
{
char* baseDir = CPLStrdup(CPLGetDirname(pszFilename));
VSIStatBufL sStatBuf;
char* subdir = nullptr;
if (CPLIsFilenameRelative(frameEntry->directory) == FALSE)
subdir = CPLStrdup(frameEntry->directory);
else if (frameEntry->directory[0] == '.' && frameEntry->directory[1] == 0)
subdir = CPLStrdup(baseDir);
else
subdir = CPLStrdup(CPLFormFilename(baseDir, frameEntry->directory, nullptr));
#if !defined(_WIN32) && !defined(_WIN32_CE)
if( VSIStatL( subdir, &sStatBuf ) != 0 && strlen(subdir) > strlen(baseDir) && subdir[strlen(baseDir)] != 0)
{
char* c = subdir + strlen(baseDir)+1;
while(*c)
{
if (*c >= 'A' && *c <= 'Z')
*c += 'a' - 'A';
c++;
}
}
#endif
frameEntry->fullFilePath = CPLStrdup(CPLFormFilename(
subdir,
frameEntry->filename, nullptr));
if( VSIStatL( frameEntry->fullFilePath, &sStatBuf ) != 0 )
{
#if !defined(_WIN32) && !defined(_WIN32_CE)
if( strlen(frameEntry->fullFilePath) > strlen(subdir) )
{
char* c = frameEntry->fullFilePath + strlen(subdir)+1;
while(*c)
{
if (*c >= 'A' && *c <= 'Z')
*c += 'a' - 'A';
c++;
}
}
if( VSIStatL( frameEntry->fullFilePath, &sStatBuf ) != 0 )
#endif
{
frameEntry->fileExists = 0;
CPLError( CE_Warning, CPLE_AppDefined,
"File %s does not exist.", frameEntry->fullFilePath );
}
#if !defined(_WIN32) && !defined(_WIN32_CE)
else
{
frameEntry->fileExists = 1;
}
#endif
}
else
{
frameEntry->fileExists = 1;
}
CPLFree(subdir);
CPLFree(baseDir);
}
CPLDebug("RPFTOC", "Entry %d : %s,%s (%d, %d)", boundaryId, frameEntry->directory, frameEntry->filename, frameRow, frameCol);
frameEntry->exists = 1;
}
return toc;
}
RPFToc* RPFTOCReadFromBuffer(const char* pszFilename, FILE* fp, const char* tocHeader)
{
int i, j;
unsigned int locationSectionPhysicalLocation;
unsigned short nSections;
unsigned int boundaryRectangleSectionSubHeaderPhysIndex = 0, boundaryRectangleSectionSubHeaderLength = 0;
unsigned int boundaryRectangleTablePhysIndex = 0, boundaryRectangleTableLength = 0;
unsigned int frameFileIndexSectionSubHeaderPhysIndex = 0, frameFileIndexSectionSubHeaderLength = 0;
unsigned int frameFileIndexSubsectionPhysIndex = 0, frameFileIndexSubsectionLength = 0;
unsigned int boundaryRectangleTableOffset;
unsigned short boundaryRectangleCount;
unsigned int frameIndexTableOffset;
unsigned int nFrameFileIndexRecords;
unsigned short nFrameFilePathnameRecords;
unsigned short frameFileIndexRecordLength;
int newBoundaryId = 0;
RPFToc* toc;
tocHeader += 1; /* skip endian */
tocHeader += 2; /* skip header length */
tocHeader += 12; /* skip file name : this should be A.TOC (padded) */
tocHeader += 1; /* skip new */
tocHeader += 15; /* skip standard_num */
tocHeader += 8; /* skip standard_date */
tocHeader += 1; /* skip classification */
tocHeader += 2; /* skip country */
tocHeader += 2; /* skip release */
memcpy(&locationSectionPhysicalLocation, tocHeader, sizeof(unsigned int));
CPL_MSBPTR32(&locationSectionPhysicalLocation);
if( VSIFSeekL( fp, locationSectionPhysicalLocation, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to locationSectionPhysicalLocation at offset %d.",
locationSectionPhysicalLocation );
return NULL;
}
/* Skip location section length (4) and component location table offset (2)*/
VSIFSeekL( fp, 4 + 2, SEEK_CUR);
/* How many sections: # of section location records */
VSIFReadL( &nSections, 1, sizeof(nSections), fp);
CPL_MSBPTR16( &nSections );
/* Skip location record length(2) + component aggregate length(4) */
VSIFSeekL( fp, 2 + 4, SEEK_CUR);
for (i = 0; i < nSections; i++)
{
unsigned short id;
unsigned int sectionLength, physIndex;
VSIFReadL( &id, 1, sizeof(id), fp);
CPL_MSBPTR16( &id );
VSIFReadL( §ionLength, 1, sizeof(sectionLength), fp);
CPL_MSBPTR32( §ionLength );
VSIFReadL( &physIndex, 1, sizeof(physIndex), fp);
CPL_MSBPTR32( &physIndex );
if (id == LID_BoundaryRectangleSectionSubheader)
{
boundaryRectangleSectionSubHeaderPhysIndex = physIndex;
boundaryRectangleSectionSubHeaderLength = sectionLength;
}
else if (id == LID_BoundaryRectangleTable)
{
boundaryRectangleTablePhysIndex = physIndex;
boundaryRectangleTableLength = sectionLength;
}
else if (id == LID_FrameFileIndexSectionSubHeader)
{
frameFileIndexSectionSubHeaderPhysIndex = physIndex;
frameFileIndexSectionSubHeaderLength = sectionLength;
}
else if (id == LID_FrameFileIndexSubsection)
{
frameFileIndexSubsectionPhysIndex = physIndex;
frameFileIndexSubsectionLength = sectionLength;
}
}
if (boundaryRectangleSectionSubHeaderPhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_BoundaryRectangleSectionSubheader." );
return NULL;
}
if (boundaryRectangleTablePhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_BoundaryRectangleTable." );
return NULL;
}
if (frameFileIndexSectionSubHeaderPhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_FrameFileIndexSectionSubHeader." );
return NULL;
}
if (frameFileIndexSubsectionPhysIndex == 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Can't find LID_FrameFileIndexSubsection." );
return NULL;
}
if( VSIFSeekL( fp, boundaryRectangleSectionSubHeaderPhysIndex, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to boundaryRectangleSectionSubHeaderPhysIndex at offset %d.",
boundaryRectangleSectionSubHeaderPhysIndex );
return NULL;
}
VSIFReadL( &boundaryRectangleTableOffset, 1, sizeof(boundaryRectangleTableOffset), fp);
CPL_MSBPTR32( &boundaryRectangleTableOffset );
VSIFReadL( &boundaryRectangleCount, 1, sizeof(boundaryRectangleCount), fp);
CPL_MSBPTR16( &boundaryRectangleCount );
if( VSIFSeekL( fp, boundaryRectangleTablePhysIndex, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to boundaryRectangleTablePhysIndex at offset %d.",
boundaryRectangleTablePhysIndex );
return NULL;
}
toc = (RPFToc*)CPLMalloc(sizeof(RPFToc));
toc->nEntries = boundaryRectangleCount;
toc->entries = (RPFTocEntry*)CPLMalloc(boundaryRectangleCount * sizeof(RPFTocEntry));
memset(toc->entries, 0, boundaryRectangleCount * sizeof(RPFTocEntry));
for(i=0;i<toc->nEntries;i++)
{
toc->entries[i].isOverviewOrLegend = 0;
VSIFReadL( toc->entries[i].type, 1, 5, fp);
toc->entries[i].type[5] = 0;
RPFTOCTrim(toc->entries[i].type);
VSIFReadL( toc->entries[i].compression, 1, 5, fp);
toc->entries[i].compression[5] = 0;
RPFTOCTrim(toc->entries[i].compression);
VSIFReadL( toc->entries[i].scale, 1, 12, fp);
toc->entries[i].scale[12] = 0;
RPFTOCTrim(toc->entries[i].scale);
if (toc->entries[i].scale[0] == '1' &&
toc->entries[i].scale[1] == ':')
{
memmove(toc->entries[i].scale,
toc->entries[i].scale+2,
strlen(toc->entries[i].scale+2)+1);
}
VSIFReadL( toc->entries[i].zone, 1, 1, fp);
toc->entries[i].zone[1] = 0;
RPFTOCTrim(toc->entries[i].zone);
VSIFReadL( toc->entries[i].producer, 1, 5, fp);
toc->entries[i].producer[5] = 0;
RPFTOCTrim(toc->entries[i].producer);
VSIFReadL( &toc->entries[i].nwLat, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].nwLat);
VSIFReadL( &toc->entries[i].nwLong, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].nwLong);
VSIFReadL( &toc->entries[i].swLat, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].swLat);
VSIFReadL( &toc->entries[i].swLong, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].swLong);
VSIFReadL( &toc->entries[i].neLat, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].neLat);
VSIFReadL( &toc->entries[i].neLong, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].neLong);
VSIFReadL( &toc->entries[i].seLat, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].seLat);
VSIFReadL( &toc->entries[i].seLong, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].seLong);
VSIFReadL( &toc->entries[i].vertResolution, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].vertResolution);
VSIFReadL( &toc->entries[i].horizResolution, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].horizResolution);
VSIFReadL( &toc->entries[i].vertInterval, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].vertInterval);
VSIFReadL( &toc->entries[i].horizInterval, 1, sizeof(double), fp);
CPL_MSBPTR64( &toc->entries[i].horizInterval);
VSIFReadL( &toc->entries[i].nVertFrames, 1, sizeof(int), fp);
CPL_MSBPTR32( &toc->entries[i].nVertFrames );
VSIFReadL( &toc->entries[i].nHorizFrames, 1, sizeof(int), fp);
CPL_MSBPTR32( &toc->entries[i].nHorizFrames );
toc->entries[i].frameEntries = (RPFTocFrameEntry*)
VSIMalloc3(toc->entries[i].nVertFrames, toc->entries[i].nHorizFrames, sizeof(RPFTocFrameEntry));
if (toc->entries[i].frameEntries == NULL)
{
CPLError( CE_Failure, CPLE_OutOfMemory,
"RPFTOCReadFromBuffer : Out of memory. Probably due to corrupted TOC file.");
RPFTOCFree(toc);
return NULL;
}
memset(toc->entries[i].frameEntries, 0,
toc->entries[i].nVertFrames * toc->entries[i].nHorizFrames * sizeof(RPFTocFrameEntry));
CPLDebug("RPFTOC", "[%d] type=%s, compression=%s, scale=%s, zone=%s, producer=%s, nVertFrames=%d, nHorizFrames=%d",
i, toc->entries[i].type, toc->entries[i].compression, toc->entries[i].scale,
toc->entries[i].zone, toc->entries[i].producer, toc->entries[i].nVertFrames, toc->entries[i].nHorizFrames);
}
if( VSIFSeekL( fp, frameFileIndexSectionSubHeaderPhysIndex, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to frameFileIndexSectionSubHeaderPhysIndex at offset %d.",
frameFileIndexSectionSubHeaderPhysIndex );
RPFTOCFree(toc);
return NULL;
}
/* Skip 1 byte security classification */
VSIFSeekL( fp, 1, SEEK_CUR );
VSIFReadL( &frameIndexTableOffset, 1, sizeof(frameIndexTableOffset), fp);
CPL_MSBPTR32( &frameIndexTableOffset );
VSIFReadL( &nFrameFileIndexRecords, 1, sizeof(nFrameFileIndexRecords), fp);
CPL_MSBPTR32( &nFrameFileIndexRecords );
VSIFReadL( &nFrameFilePathnameRecords, 1, sizeof(nFrameFilePathnameRecords), fp);
CPL_MSBPTR16( &nFrameFilePathnameRecords );
VSIFReadL( &frameFileIndexRecordLength, 1, sizeof(frameFileIndexRecordLength), fp);
CPL_MSBPTR16( &frameFileIndexRecordLength );
for (i=0;i<(int)nFrameFileIndexRecords;i++)
{
RPFTocEntry* entry;
RPFTocFrameEntry* frameEntry;
unsigned short boundaryId, frameRow, frameCol;
unsigned int offsetFrameFilePathName;
unsigned short pathLength;
if( VSIFSeekL( fp, frameFileIndexSubsectionPhysIndex + frameFileIndexRecordLength * i, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to frameFileIndexSubsectionPhysIndex(%d) at offset %d.",
i, frameFileIndexSubsectionPhysIndex + frameFileIndexRecordLength * i);
RPFTOCFree(toc);
return NULL;
}
VSIFReadL( &boundaryId, 1, sizeof(boundaryId), fp);
CPL_MSBPTR16( &boundaryId );
if (i == 0 && boundaryId == 0)
newBoundaryId = 1;
if (newBoundaryId == 0)
boundaryId--;
if (boundaryId >= toc->nEntries)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Bad boundary id (%d) for frame file index %d.",
boundaryId, i);
RPFTOCFree(toc);
return NULL;
}
entry = &toc->entries[boundaryId];
entry->boundaryId = boundaryId;
VSIFReadL( &frameRow, 1, sizeof(frameRow), fp);
CPL_MSBPTR16( &frameRow );
VSIFReadL( &frameCol, 1, sizeof(frameCol), fp);
CPL_MSBPTR16( &frameCol );
if (newBoundaryId == 0)
{
frameRow--;
frameCol--;
}
else
{
/* Trick so that frames are numbered north to south */
frameRow = (unsigned short)((entry->nVertFrames-1) - frameRow);
}
if (frameRow >= entry->nVertFrames)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Bad row num (%d) for frame file index %d.",
frameRow, i);
RPFTOCFree(toc);
return NULL;
}
if (frameCol >= entry->nHorizFrames)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Bad col num (%d) for frame file index %d.",
frameCol, i);
RPFTOCFree(toc);
return NULL;
}
frameEntry = &entry->frameEntries[frameRow * entry->nHorizFrames + frameCol ];
frameEntry->frameRow = frameRow;
frameEntry->frameCol = frameCol;
if (frameEntry->exists)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Frame entry(%d,%d) for frame file index %d is a duplicate.",
frameRow, frameCol, i);
RPFTOCFree(toc);
return NULL;
}
VSIFReadL( &offsetFrameFilePathName, 1, sizeof(offsetFrameFilePathName), fp);
CPL_MSBPTR32( &offsetFrameFilePathName );
VSIFReadL( frameEntry->filename, 1, 12, fp);
frameEntry->filename[12] = '\0';
/* Check if the filename is an overview or legend */
for (j=0;j<12;j++)
{
if (strcmp(&(frameEntry->filename[j]),".OVR") == 0 ||
strcmp(&(frameEntry->filename[j]),".ovr") == 0 ||
strcmp(&(frameEntry->filename[j]),".LGD") == 0 ||
strcmp(&(frameEntry->filename[j]),".lgd") == 0)
{
entry->isOverviewOrLegend = TRUE;
break;
}
}
/* Extract series code */
if (entry->seriesAbbreviation == NULL)
{
const NITFSeries* series = NITFGetSeriesInfo(frameEntry->filename);
if (series)
{
entry->seriesAbbreviation = series->abbreviation;
entry->seriesName = series->name;
}
}
/* Get file geo reference */
VSIFReadL( frameEntry->georef, 1, 6, fp);
frameEntry->georef[6] = '\0';
/* Go to start of pathname record */
/* New path_off offset from start of frame file index section of TOC?? */
/* Add pathoffset wrt frame file index table subsection (loc[3]) */
if( VSIFSeekL( fp, frameFileIndexSubsectionPhysIndex + offsetFrameFilePathName, SEEK_SET ) != 0)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Invalid TOC file. Unable to seek to frameFileIndexSubsectionPhysIndex + offsetFrameFilePathName(%d) at offset %d.",
i, frameFileIndexSubsectionPhysIndex + offsetFrameFilePathName);
RPFTOCFree(toc);
return NULL;
}
VSIFReadL( &pathLength, 1, sizeof(pathLength), fp);
CPL_MSBPTR16( &pathLength );
/* if nFrameFileIndexRecords == 65535 and pathLength == 65535 for each record,
this leads to 4 GB allocation... Protect against this case */
if (pathLength > 256)
{
CPLError( CE_Failure, CPLE_NotSupported,
"Path length is big : %d. Probably corrupted TOC file.", (int)pathLength);
RPFTOCFree(toc);
return NULL;
}
frameEntry->directory = (char *)CPLMalloc(pathLength+1);
VSIFReadL( frameEntry->directory, 1, pathLength, fp);
frameEntry->directory[pathLength] = 0;
if (pathLength > 0 && frameEntry->directory[pathLength-1] == '/')
frameEntry->directory[pathLength-1] = 0;
if (frameEntry->directory[0] == '.' && frameEntry->directory[1] == '/')
memmove(frameEntry->directory, frameEntry->directory+2, strlen(frameEntry->directory+2)+1);
{
char* baseDir = CPLStrdup(CPLGetDirname(pszFilename));
VSIStatBufL sStatBuf;
char* subdir;
if (CPLIsFilenameRelative(frameEntry->directory) == FALSE)
subdir = CPLStrdup(frameEntry->directory);
else if (frameEntry->directory[0] == '.' && frameEntry->directory[1] == 0)
subdir = CPLStrdup(baseDir);
else
subdir = CPLStrdup(CPLFormFilename(baseDir, frameEntry->directory, NULL));
#if !defined(_WIN32) && !defined(_WIN32_CE)
if( VSIStatL( subdir, &sStatBuf ) != 0 && subdir[strlen(baseDir)] != 0)
{
char* c = subdir + strlen(baseDir)+1;
while(*c)
{
if (*c >= 'A' && *c <= 'Z')
*c += 'a' - 'A';
c++;
}
}
#endif
frameEntry->fullFilePath = CPLStrdup(CPLFormFilename(
subdir,
frameEntry->filename, NULL));
if( VSIStatL( frameEntry->fullFilePath, &sStatBuf ) != 0 )
{
#if !defined(_WIN32) && !defined(_WIN32_CE)
char* c = frameEntry->fullFilePath + strlen(subdir)+1;
while(*c)
{
if (*c >= 'A' && *c <= 'Z')
*c += 'a' - 'A';
c++;
}
if( VSIStatL( frameEntry->fullFilePath, &sStatBuf ) != 0 )
#endif
{
frameEntry->fileExists = 0;
CPLError( CE_Warning, CPLE_AppDefined,
"File %s does not exist.", frameEntry->fullFilePath );
}
#if !defined(_WIN32) && !defined(_WIN32_CE)
else
{
frameEntry->fileExists = 1;
}
#endif
}
else
{
frameEntry->fileExists = 1;
}
CPLFree(subdir);
CPLFree(baseDir);
}
CPLDebug("RPFTOC", "Entry %d : %s,%s (%d, %d)", boundaryId, frameEntry->directory, frameEntry->filename, frameRow, frameCol);
frameEntry->exists = 1;
}
return toc;
}
