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Expect a 20-byte nul-padded-and-terminated nickname
svn:r1480
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parent
1e2b008700
commit
41387bea08
@ -326,7 +326,7 @@ rend_service_introduce(circuit_t *circuit, const char *request, int request_len)
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return -1;
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}
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/* min key length plus digest length */
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/* min key length plus digest length plus nickname length */
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if (request_len < 148) {
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log_fn(LOG_WARN, "Got a truncated INTRODUCE2 cell on circ %d",
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circuit->n_circ_id);
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@ -357,9 +357,9 @@ rend_service_introduce(circuit_t *circuit, const char *request, int request_len)
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log_fn(LOG_WARN, "Couldn't decrypt INTRODUCE2 cell");
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return -1;
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}
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ptr=memchr(buf,0,len);
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ptr=memchr(buf,0,MAX_NICKNAME_LEN+1);
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if (!ptr || ptr == buf) {
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log_fn(LOG_WARN, "Couldn't find a null-terminated nickname in INTRODUCE2 cell");
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log_fn(LOG_WARN, "Couldn't find a null-padded nickname in INTRODUCE2 cell");
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return -1;
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}
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if (strspn(buf,LEGAL_NICKNAME_CHARACTERS) != ptr-buf) {
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@ -368,8 +368,8 @@ rend_service_introduce(circuit_t *circuit, const char *request, int request_len)
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}
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/* Okay, now we know that the nickname is at the start of the buffer. */
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rp_nickname = buf;
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++ptr;
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len -= (ptr-buf);
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ptr = buf+(MAX_NICKNAME_LEN+1);
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len -= (MAX_NICKNAME_LEN+1);
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if (len != 20+128) {
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log_fn(LOG_WARN, "Bad length for INTRODUCE2 cell.");
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return -1;
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