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| author | Nick Mathewson <nickm@torproject.org> | 2012-06-23 15:35:43 -0400 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2012-06-23 15:35:43 -0400 |
| commit | ffd7189b3fc015ce47e6ab27ac85d4eab2183a2b (patch) | |
| tree | 1cb0830b664d2e7ef94ad7ec346524f046e435a6 | |
| parent | b1ad1a1d0266a20bb0dac15e65abe7b65a74e8a0 (diff) | |
| download | tor-ffd7189b3fc015ce47e6ab27ac85d4eab2183a2b.tar.gz tor-ffd7189b3fc015ce47e6ab27ac85d4eab2183a2b.zip | |
Don't assert in get_string_from_pipe() on len==0
We can treat this case as an EAGAIN (probably because of an
unexpected internal NUL) rather than a crash-worthy problem.
Fixes bug 6225, again. Bug not in any released version of Tor.
| -rw-r--r-- | src/common/util.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/common/util.c b/src/common/util.c index 8cb013e18a..e5b51b9a94 100644 --- a/src/common/util.c +++ b/src/common/util.c @@ -4386,7 +4386,10 @@ get_string_from_pipe(FILE *stream, char *buf_out, size_t count) } } else { len = strlen(buf_out); - tor_assert(len>0); + if (len == 0) { + /* this probably means we got a NUL at the start of the string. */ + return IO_STREAM_EAGAIN; + } if (buf_out[len - 1] == '\n') { /* Remove the trailing newline */ |