BSBDataset::open() function may consider a non-BSB file as a BSB file

[Kasulle]

GDAL Version 1.6 When i use GDALOpen() to open an bmp file, GDAL reports a error message like this: "ERROR 1: Failed to find required RGB/ or BSB/ keyword in header." but I found that this is a BSB format errror message.

================================================================================== BSBDataset::open() {

if( poOpenInfo->nHeaderBytes < 1000 )

return NULL;

for( i = 0; i < poOpenInfo->nHeaderBytes - 4; i++ ) {

if( poOpenInfo->pabyHeader[i+0] == 'B'

&& poOpenInfo->pabyHeader[i+1] == 'S' && poOpenInfo->pabyHeader[i+2] == 'B' && poOpenInfo->pabyHeader[i+3] == '/' ) break;

if( poOpenInfo->pabyHeader[i+0] == 'N'

&& poOpenInfo->pabyHeader[i+1] == 'O' && poOpenInfo->pabyHeader[i+2] == 'S' && poOpenInfo->pabyHeader[i+3] == '/' )

{

isNos = true; break;

} if( poOpenInfo->pabyHeader[i+0] == 'W'

&& poOpenInfo->pabyHeader[i+1] == 'X' && poOpenInfo->pabyHeader[i+2] == '
' && poOpenInfo->pabyHeader[i+3] == '8' ) break;

}

} ==================================================================================== if the 1000 bytes in one file has a sequence "NOS/", the file is considered as a NOS file, but in fact, this is a bmp file and occasionally has a "NOS/" sequence in 1000 bytes

[Kasulle]

a bmp file but considered as a NOS file by BSB driver

[Even Rouault]

Fixed in trunk (r16539) and in branches/1.6 (r16540). In the meantime you can workaround by skipping the BSB driver with the GDAL_SKIP configuration option :

GDAL_SKIP=BSB gdalinfo bb.bmp

[Kasulle]

Replying to rouault:

Fixed in trunk (r16539) and in branches/1.6 (r16540). In the meantime you can workaround by skipping the BSB driver with the GDAL_SKIP configuration option :

GDAL_SKIP=BSB gdalinfo bb.bmp

thanks