Config file support #326
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Config file support #326
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Having it into another module will prevent the code from being messy later. The parsing procedure is taken verbatim: no semantic change, no behavioural change.
The configuration file defines the default behaviour of pam_u2f. Individual module invocations under /etc/pam.d can override settings. The file-system location of the config file is by default $sysconfdir/security/pam_u2f.conf, where $sysconfdir is supplied at build time. A new module configuration, "conf_file=", allows to override it at runtime. Only absolute paths are accepted.
- split-input format: add trailing blob for config file The corpus needs some update. - __wrap_open extended to handle the configuration file. The configuration file, mutated by the fuzzer, is made available to the cfg.c implementation, analogously to the handling of authfile_fd. The conf_file_path variable will hold the expected file name. If the conf_file= option does not appear in the fuzzed argv, the conf_file_path variable is set with the CFG_DEFAULT_PATH. conf_file_path might also be NULL if the test does not involve the use of a configuration file: this happens in the fuzz_format_parsers case.
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Fixes #265