ERROR 2: CPLCalloc(): Out of memory allocating when importing EHdr/ESRI .hdr Labelled raster

[epatton]

I'm trying to import an ESRI flt raster into Grass 6.3.cvs using r.in.gdal. Using fresh gdal 1.4.1 from today, and fresh Grass 6.3 cvs update from today on Ubuntu 7.04 Beta.

$ gdalinfo -mm 45_18_N_66_06_W_BACKSCATTER.flt

Driver: EHdr/ESRI .hdr Labelled
Size is 2641, 3721
Coordinate System is `'
Origin = (2531369.500000000000000,7366720.500000000000000)
Pixel Size = (1.000000000000000,-1.000000000000000)
Corner Coordinates:
Upper Left  ( 2531369.500, 7366720.500) 
Lower Left  ( 2531369.500, 7362999.500) 
Upper Right ( 2534010.500, 7366720.500) 
Lower Right ( 2534010.500, 7362999.500) 
Center      ( 2532690.000, 7364860.000) 
Band 1 Block=2641x1 Type=Byte, ColorInterp=Undefined
ERROR 2: CPLCalloc(): Out of memory allocating -329 bytes.

  Aborted (core dumped)

~ Eric.

[epatton]

Header file from the ESRI floating point raster that caused the error

[warmerdam]

The problem is related to initialization when the NBITS keyword is missing from the .hdr file. In 1.4.0 a bunch of new code was introduced for NBITS < 8, but it also added a dependency on having the keyword present.

The workaround is to add "NBITS 8" in the .hdr file.

Fix is to default to 8 in the code. The fix has been committed in trunk, and 1.4 branch and it should be released in 1.4.2.