Remove another unused v0 hidserv function.

Noted by Nick on #10841.

src/or/rendcommon.c

@@ -672,79 +672,6 @@ rend_encode_v2_descriptors(smartlist_t *descs_out,
   return seconds_valid;
 }
 
-/** Parse a service descriptor at <b>str</b> (<b>len</b> bytes).  On
- * success, return a newly alloced service_descriptor_t.  On failure,
- * return NULL.
- */
-rend_service_descriptor_t *
-rend_parse_service_descriptor(const char *str, size_t len)
-{
-  rend_service_descriptor_t *result = NULL;
-  int i, n_intro_points;
-  size_t keylen, asn1len;
-  const char *end, *cp, *eos;
-  rend_intro_point_t *intro;
-
-  result = tor_malloc_zero(sizeof(rend_service_descriptor_t));
-  cp = str;
-  end = str+len;
-  if (end-cp<2) goto truncated;
-  result->version = 0;
-  if (end-cp < 2) goto truncated;
-  asn1len = ntohs(get_uint16(cp));
-  cp += 2;
-  if ((size_t)(end-cp) < asn1len) goto truncated;
-  result->pk = crypto_pk_asn1_decode(cp, asn1len);
-  if (!result->pk) goto truncated;
-  cp += asn1len;
-  if (end-cp < 4) goto truncated;
-  result->timestamp = (time_t) ntohl(get_uint32(cp));
-  cp += 4;
-  result->protocols = 1<<2; /* always use intro format 2 */
-  if (end-cp < 2) goto truncated;
-  n_intro_points = ntohs(get_uint16(cp));
-  cp += 2;
-
-  result->intro_nodes = smartlist_new();
-  for (i=0;i<n_intro_points;++i) {
-    if (end-cp < 2) goto truncated;
-    eos = (const char *)memchr(cp,'\0',end-cp);
-    if (!eos) goto truncated;
-    /* Write nickname to extend info, but postpone the lookup whether
-     * we know that router. It's not part of the parsing process. */
-    intro = tor_malloc_zero(sizeof(rend_intro_point_t));
-    intro->extend_info = tor_malloc_zero(sizeof(extend_info_t));
-    strlcpy(intro->extend_info->nickname, cp,
-            sizeof(intro->extend_info->nickname));
-    smartlist_add(result->intro_nodes, intro);
-    cp = eos+1;
-  }
-  keylen = crypto_pk_keysize(result->pk);
-  tor_assert(end-cp >= 0);
-  if ((size_t)(end-cp) < keylen) goto truncated;
-  if ((size_t)(end-cp) > keylen) {
-    log_warn(LD_PROTOCOL,
-             "Signature is %d bytes too long on service descriptor.",
-             (int)((size_t)(end-cp) - keylen));
-    goto error;
-  }
-  note_crypto_pk_op(REND_CLIENT);
-  if (crypto_pk_public_checksig_digest(result->pk,
-                                       (char*)str,cp-str, /* data */
-                                       (char*)cp,end-cp  /* signature*/
-                                       )<0) {
-    log_warn(LD_PROTOCOL, "Bad signature on service descriptor.");
-    goto error;
-  }
-
-  return result;
- truncated:
-  log_warn(LD_PROTOCOL, "Truncated service descriptor.");
- error:
-  rend_service_descriptor_free(result);
-  return NULL;
-}
-
 /** Sets <b>out</b> to the first 10 bytes of the digest of <b>pk</b>,
  * base32 encoded.  NUL-terminates out.  (We use this string to
  * identify services in directory requests and .onion URLs.)

src/or/rendcommon.h

@@ -26,8 +26,6 @@ void rend_process_relay_cell(circuit_t *circ, const crypt_path_t *layer_hint,
                              const uint8_t *payload);
 
 void rend_service_descriptor_free(rend_service_descriptor_t *desc);
-rend_service_descriptor_t *rend_parse_service_descriptor(const char *str,
-                                                         size_t len);
 int rend_get_service_id(crypto_pk_t *pk, char *out);
 void rend_encoded_v2_service_descriptor_free(
                                rend_encoded_v2_service_descriptor_t *desc);