Date: Wed, 04 Apr 2012 12:37:43 +0100 From: Michael Pappas <pappasm@...man.ac.uk> To: john-dev@...ts.openwall.com Subject: Path initialization error (was: OpenCL runtime errors) On 04/04/2012 11:22 AM, Michael Pappas wrote: > > > Running through the shell will return a different error: > > bash-4.1$ john -t --format=cryptmd5-opencl > OpenCL Platforms: 1 > OpenCL Platform: <<<NVIDIA CUDA>>> 1 device(s), using device: > <<<GeForce 9300M GS>>> > pathname = $JOHN/ > pathname (expanded) = > Options used: -I > Compilation log: Error in processing command line: Don't understand > command line argument "sm_11"! > OpenCL error (CL_INVALID_PROGRAM_EXECUTABLE) in file > (opencl_cryptmd5_fmt.c) at line (235) - (Error while creating kernel) > > It seems like get_path() thinks that $JOHN is not set, expanding it to > the empty string. Exporting didn't help either. I'll keep looking into > it, but even if it's fixed, I think we'll fall back to the original > error (the one returned on gdb). > I narrowed down the problem to path_init(). The problem seems to be caused by the way I am executing john. I have added some debug output in order to highlight the effect: bash-4.1$ john -t --format=cryptmd5-opencl argv = john john_home_path: (null) john_home_path: (null) john_home_path: (null) john_home_path: (null) john_home_path: (null) ... bash-4.1$ ./john -t --format=cryptmd5-opencl argv = ./john john_home_path: ./ john_home_path: ./john.conf john_home_path: ./dumb16.conf john_home_path: ./dumb32.conf john_home_path: ./dynamic.conf ... There seems like path_init() won't handle cases where the argv contains no slash (see path.c from line 65 and on). The error does not occur when I am executing on gdb because gdb is expanding argv to contain the full path name. Using realpath() seems to solve the problem, but I'm not sure this would be portable. Any ideas?
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