Hi Mike, could you send the output of
curl http://169.254.169.254/latest/meta-data/iam/security-credentials/iam-grid-s3
Slightly redacted of course, but with the exact formatting. This part of thee code currently uses a "simple JSON parser" (https://github.com/OSGeo/gdal/blob/c61d116a469821b769630a112dee7f1a61fed885/port/cpl_aws.cpp#L554), which is actually just a non JSON-aware string tokenizer, and I suspect it could be defeated by a new formatting of S3 or something specific to your credentials.
It could also be that something unhandled by that parser appears inside quoted strings, like an escaped double quote or some other JSON escaped character (like an escaped forward slash \/ )
If that was the case we should likely switch to proper JSON deserialization (that part of the code must predate libjson-c being a build requirement of GDAL).
Even -- http://www.spatialys.com My software is free, but my time generally not. _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev
