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make our socks5 handling more robust to broken socks clients:

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throw out everything waiting on the buffer in between socks
handshake phases, since they can't possibly (so the theory
goes) have predicted what we plan to respond to them.


svn:r8223
This commit is contained in:
Roger Dingledine 2006-08-24 04:51:55 +00:00
parent 9ebaf01096
commit 0649fa14c1
1 changed files with 3 additions and 1 deletions
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4
src/or/buffers.c
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@ -953,7 +953,9 @@ fetch_from_buf_socks(buf_t *buf, socks_request_t *req,
req->reply[1] = '\xFF'; /* reject all methods */ req->reply[1] = '\xFF'; /* reject all methods */
return -1; return -1;
} }
buf_remove_from_front(buf,2+nummethods); /* remove packet from buf */ /* remove packet from buf. also remove any other extraneous
* bytes, to support broken socks clients. */
buf_clear(buf);
req->replylen = 2; /* 2 bytes of response */ req->replylen = 2; /* 2 bytes of response */
req->reply[0] = 5; /* socks5 reply */ req->reply[0] = 5; /* socks5 reply */