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| author | Dominik Maier <domenukk@gmail.com> | 2020-11-03 13:41:06 +0100 |
|---|---|---|
| committer | Dominik Maier <domenukk@gmail.com> | 2020-11-03 13:41:06 +0100 |
| commit | d795ec0451bfb6f93485c4ec6436ae1af3840070 (patch) | |
| tree | f3d929755b98483be06114f40df6c69c6746197b /src | |
| parent | 350c3b323a59c99891635a233c3f82f83653947c (diff) | |
| download | afl++-d795ec0451bfb6f93485c4ec6436ae1af3840070.tar.gz | |
added better error handling to forkserver fd
Diffstat (limited to 'src')
| -rw-r--r-- | src/afl-forkserver.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/afl-forkserver.c b/src/afl-forkserver.c index d23cf6eb..714be24e 100644 --- a/src/afl-forkserver.c +++ b/src/afl-forkserver.c @@ -983,10 +983,13 @@ void afl_fsrv_write_to_testcase(afl_forkserver_t *fsrv, u8 *buf, size_t len) { if (fd < 0) { PFATAL("Unable to create '%s'", fsrv->out_file); } - } else if (unlikely(!fd)) { + } else if (unlikely(fd <= 0)) { - // We should never have stdin as fd here, 0 is likely unset. - FATAL("Nowhere to write output to (neither out_fd nor out_file set)"); + // We should have a (non-stdin) fd at this point, else we got a problem. + FATAL( + "Nowhere to write output to (neither out_fd nor out_file set (fd is " + "%d))", + fd); } else { |