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authorDaniel Stenberg <daniel@haxx.se>2005-06-02 11:09:10 +0000
committerDaniel Stenberg <daniel@haxx.se>2005-06-02 11:09:10 +0000
commit050bd7dd0bb089f24325db241a942d1a39559b5d (patch)
treefba85414b332241992c2be755800f7e21a35e1a6 /ares/ares_version.h
parentf75038634f1bc8aa6e7818ace0428d5aa3cc32d4 (diff)
William Ahern:
I'm not quite sure how this was happening, but I've been seeing PTR queries which seem to return empty responses. At least, they were empty when calling ares_expand_name() on the record. Here's a patch which guarantees to NUL-terminate the expanded name. The old behavior failed to NUL-terminate if len was 0, and this was causing strlen() to run past the end of the buffer after calling ares_expand_name() and getting ARES_SUCCESS as the return value. If q is not greater than *s then it's equal and *s is always allocated with at least one byte.
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