Mercurial > dropbear
view fuzz/fuzz-harness.c @ 1851:7f549ee3df48
Use HOME before /etc/passwd to find id_dropbear (#137)
Currently dbclient uses the value of HOME by default when looking for
~/.ssh/known_hosts, falling back to /etc/passwd if HOME is not set (so
that people can work around broken values in /etc/passwd).
However, when locating the default authentication key (defaults to
~/.ssh/id_dropbear), paths not starting with / are always prefixed with
the value from /etc/passwd.
Make the behaviour consistent by adjusting expand_homedir_path to use
the value of HOME, falling back to /etc/passwd if HOME is not set.
author | Matt Robinson <git@nerdoftheherd.com> |
---|---|
date | Tue, 19 Oct 2021 06:02:47 +0100 |
parents | fd00aeff38fd |
children | be236878efcf |
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#include "includes.h" #include "buffer.h" #include "dbutil.h" extern int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size); int main(int argc, char ** argv) { int i; buffer *input = buf_new(100000); int quiet = 0; for (i = 1; i < argc; i++) { #if DEBUG_TRACE if (strcmp(argv[i], "-v") == 0) { debug_trace = 1; TRACE(("debug printing on")) } #endif if (strcmp(argv[i], "-q") == 0) { printf("Running quiet\n"); quiet = 1; } } int old_fuzz_wrapfds = 0; for (i = 1; i < argc; i++) { if (argv[i][0] == '-') { /* ignore arguments */ continue; } char* fn = argv[i]; buf_setlen(input, 0); buf_readfile(input, fn); buf_setpos(input, 0); /* Run twice to catch problems with statefulness */ fuzz.wrapfds = old_fuzz_wrapfds; if (!quiet) { printf("Running %s once \n", fn); } LLVMFuzzerTestOneInput(input->data, input->len); if (!quiet) { printf("Running %s twice \n", fn); } LLVMFuzzerTestOneInput(input->data, input->len); if (!quiet) { printf("Done %s\n", fn); } /* Disable wrapfd so it won't interfere with buf_readfile() above */ old_fuzz_wrapfds = fuzz.wrapfds; fuzz.wrapfds = 0; } printf("Finished\n"); return 0; } // Just to let it link size_t LLVMFuzzerMutate(uint8_t *UNUSED(Data), size_t UNUSED(Size), size_t UNUSED(MaxSize)) { printf("standalone fuzzer harness shouldn't call LLVMFuzzerMutate"); abort(); return 0; }