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[or-cvs] r17595: {tor} Refactor find_first_by_keyword into one variant that can ret (tor/trunk/src/or)
Author: nickm
Date: 2008-12-11 14:40:58 -0500 (Thu, 11 Dec 2008)
New Revision: 17595
Modified:
tor/trunk/src/or/routerparse.c
Log:
Refactor find_first_by_keyword into one variant that can return NULL and one that can't.
This makes it easier for us to avoid errors where we we forgot to list a keyword as mandatory, and easier for Coverity to detect cases like this too.
Modified: tor/trunk/src/or/routerparse.c
===================================================================
--- tor/trunk/src/or/routerparse.c 2008-12-11 19:12:55 UTC (rev 17594)
+++ tor/trunk/src/or/routerparse.c 2008-12-11 19:40:58 UTC (rev 17595)
@@ -449,8 +449,13 @@
char end_char);
static void token_free(directory_token_t *tok);
static smartlist_t *find_all_exitpolicy(smartlist_t *s);
-static directory_token_t *find_first_by_keyword(smartlist_t *s,
- directory_keyword keyword);
+static directory_token_t *_find_by_keyword(smartlist_t *s,
+ directory_keyword keyword,
+ const char *keyword_str);
+#define find_by_keyword(s, keyword) _find_by_keyword((s), (keyword), #keyword)
+static directory_token_t *find_opt_by_keyword(smartlist_t *s,
+ directory_keyword keyword);
+
#define TS_ANNOTATIONS_OK 1
#define TS_NOCHECK 2
#define TS_NO_NEW_ANNOTATIONS 4
@@ -729,8 +734,7 @@
log_warn(LD_DIR, "Error tokenizing directory"); goto err;
}
- tok = find_first_by_keyword(tokens, K_PUBLISHED);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_PUBLISHED);
tor_assert(tok->n_args == 1);
if (parse_iso_time(tok->args[0], &published_on) < 0) {
@@ -790,13 +794,12 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_PUBLISHED);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_PUBLISHED);
tor_assert(tok->n_args == 1);
if (parse_iso_time(tok->args[0], &published_on) < 0) {
goto err;
}
- if (!(tok = find_first_by_keyword(tokens, K_DIRECTORY_SIGNATURE))) {
+ if (!(tok = find_opt_by_keyword(tokens, K_DIRECTORY_SIGNATURE))) {
log_warn(LD_DIR, "Missing signature on running-routers");
goto err;
}
@@ -1182,7 +1185,7 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_ROUTER);
+ tok = find_by_keyword(tokens, K_ROUTER);
tor_assert(tok->n_args >= 5);
router = tor_malloc_zero(sizeof(routerinfo_t));
@@ -1238,8 +1241,8 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_BANDWIDTH);
- tor_assert(tok && tok->n_args >= 3);
+ tok = find_by_keyword(tokens, K_BANDWIDTH);
+ tor_assert(tok->n_args >= 3);
router->bandwidthrate = (int)
tor_parse_long(tok->args[0],10,1,INT_MAX,&ok,NULL);
@@ -1261,7 +1264,7 @@
goto err;
}
- if ((tok = find_first_by_keyword(tokens, A_PURPOSE))) {
+ if ((tok = find_opt_by_keyword(tokens, A_PURPOSE))) {
tor_assert(tok->n_args != 0);
router->purpose = router_purpose_from_string(tok->args[0]);
} else {
@@ -1270,7 +1273,7 @@
router->cache_info.send_unencrypted =
(router->purpose == ROUTER_PURPOSE_GENERAL) ? 1 : 0;
- if ((tok = find_first_by_keyword(tokens, K_UPTIME))) {
+ if ((tok = find_opt_by_keyword(tokens, K_UPTIME))) {
tor_assert(tok->n_args >= 1);
router->uptime = tor_parse_long(tok->args[0],10,0,LONG_MAX,&ok,NULL);
if (!ok) {
@@ -1279,25 +1282,22 @@
}
}
- if ((tok = find_first_by_keyword(tokens, K_HIBERNATING))) {
+ if ((tok = find_opt_by_keyword(tokens, K_HIBERNATING))) {
tor_assert(tok->n_args >= 1);
router->is_hibernating
= (tor_parse_long(tok->args[0],10,0,LONG_MAX,NULL,NULL) != 0);
}
- tok = find_first_by_keyword(tokens, K_PUBLISHED);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_PUBLISHED);
tor_assert(tok->n_args == 1);
if (parse_iso_time(tok->args[0], &router->cache_info.published_on) < 0)
goto err;
- tok = find_first_by_keyword(tokens, K_ONION_KEY);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_ONION_KEY);
router->onion_pkey = tok->key;
tok->key = NULL; /* Prevent free */
- tok = find_first_by_keyword(tokens, K_SIGNING_KEY);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_SIGNING_KEY);
router->identity_pkey = tok->key;
tok->key = NULL; /* Prevent free */
if (crypto_pk_get_digest(router->identity_pkey,
@@ -1305,7 +1305,7 @@
log_warn(LD_DIR, "Couldn't calculate key digest"); goto err;
}
- if ((tok = find_first_by_keyword(tokens, K_FINGERPRINT))) {
+ if ((tok = find_opt_by_keyword(tokens, K_FINGERPRINT))) {
/* If there's a fingerprint line, it must match the identity digest. */
char d[DIGEST_LEN];
tor_assert(tok->n_args == 1);
@@ -1322,15 +1322,15 @@
}
}
- if ((tok = find_first_by_keyword(tokens, K_PLATFORM))) {
+ if ((tok = find_opt_by_keyword(tokens, K_PLATFORM))) {
router->platform = tor_strdup(tok->args[0]);
}
- if ((tok = find_first_by_keyword(tokens, K_CONTACT))) {
+ if ((tok = find_opt_by_keyword(tokens, K_CONTACT))) {
router->contact_info = tor_strdup(tok->args[0]);
}
- if ((tok = find_first_by_keyword(tokens, K_EVENTDNS))) {
+ if ((tok = find_opt_by_keyword(tokens, K_EVENTDNS))) {
router->has_old_dnsworkers = tok->n_args && !strcmp(tok->args[0], "0");
} else if (router->platform) {
if (! tor_version_as_new_as(router->platform, "0.1.2.2-alpha"))
@@ -1349,7 +1349,7 @@
});
policy_expand_private(&router->exit_policy);
- if ((tok = find_first_by_keyword(tokens, K_FAMILY)) && tok->n_args) {
+ if ((tok = find_opt_by_keyword(tokens, K_FAMILY)) && tok->n_args) {
int i;
router->declared_family = smartlist_create();
for (i=0;i<tok->n_args;++i) {
@@ -1362,13 +1362,13 @@
}
}
- if ((tok = find_first_by_keyword(tokens, K_CACHES_EXTRA_INFO)))
+ if ((tok = find_opt_by_keyword(tokens, K_CACHES_EXTRA_INFO)))
router->caches_extra_info = 1;
- if ((tok = find_first_by_keyword(tokens, K_ALLOW_SINGLE_HOP_EXITS)))
+ if ((tok = find_opt_by_keyword(tokens, K_ALLOW_SINGLE_HOP_EXITS)))
router->allow_single_hop_exits = 1;
- if ((tok = find_first_by_keyword(tokens, K_EXTRA_INFO_DIGEST))) {
+ if ((tok = find_opt_by_keyword(tokens, K_EXTRA_INFO_DIGEST))) {
tor_assert(tok->n_args >= 1);
if (strlen(tok->args[0]) == HEX_DIGEST_LEN) {
base16_decode(router->cache_info.extra_info_digest,
@@ -1378,12 +1378,11 @@
}
}
- if ((tok = find_first_by_keyword(tokens, K_HIDDEN_SERVICE_DIR))) {
+ if ((tok = find_opt_by_keyword(tokens, K_HIDDEN_SERVICE_DIR))) {
router->wants_to_be_hs_dir = 1;
}
- tok = find_first_by_keyword(tokens, K_ROUTER_SIGNATURE);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_ROUTER_SIGNATURE);
note_crypto_pk_op(VERIFY_RTR);
#ifdef COUNT_DISTINCT_DIGESTS
if (!verified_digests)
@@ -1494,8 +1493,7 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_PUBLISHED);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_PUBLISHED);
if (parse_iso_time(tok->args[0], &extrainfo->cache_info.published_on)) {
log_warn(LD_DIR,"Invalid published time %s on \"extra-info\"",
escaped(tok->args[0]));
@@ -1508,8 +1506,7 @@
key = router->identity_pkey;
}
- tok = find_first_by_keyword(tokens, K_ROUTER_SIGNATURE);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_ROUTER_SIGNATURE);
if (strcmp(tok->object_type, "SIGNATURE") ||
tok->object_size < 128 || tok->object_size > 512) {
log_warn(LD_DIR, "Bad object type or length on extra-info signature");
@@ -1597,20 +1594,20 @@
cert = tor_malloc_zero(sizeof(authority_cert_t));
memcpy(cert->cache_info.signed_descriptor_digest, digest, DIGEST_LEN);
- tok = find_first_by_keyword(tokens, K_DIR_SIGNING_KEY);
- tor_assert(tok && tok->key);
+ tok = find_by_keyword(tokens, K_DIR_SIGNING_KEY);
+ tor_assert(tok->key);
cert->signing_key = tok->key;
tok->key = NULL;
if (crypto_pk_get_digest(cert->signing_key, cert->signing_key_digest))
goto err;
- tok = find_first_by_keyword(tokens, K_DIR_IDENTITY_KEY);
- tor_assert(tok && tok->key);
+ tok = find_by_keyword(tokens, K_DIR_IDENTITY_KEY);
+ tor_assert(tok->key);
cert->identity_key = tok->key;
tok->key = NULL;
- tok = find_first_by_keyword(tokens, K_FINGERPRINT);
- tor_assert(tok && tok->n_args);
+ tok = find_by_keyword(tokens, K_FINGERPRINT);
+ tor_assert(tok->n_args > 0);
if (base16_decode(fp_declared, DIGEST_LEN, tok->args[0],
strlen(tok->args[0]))) {
log_warn(LD_DIR, "Couldn't decode key certificate fingerprint %s",
@@ -1628,7 +1625,7 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_DIR_ADDRESS);
+ tok = find_opt_by_keyword(tokens, K_DIR_ADDRESS);
if (tok) {
tor_assert(tok->n_args != 0);
if (parse_addr_port(LOG_WARN, tok->args[0], NULL, &cert->addr,
@@ -1638,13 +1635,11 @@
}
}
- tok = find_first_by_keyword(tokens, K_DIR_KEY_PUBLISHED);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_DIR_KEY_PUBLISHED);
if (parse_iso_time(tok->args[0], &cert->cache_info.published_on) < 0) {
goto err;
}
- tok = find_first_by_keyword(tokens, K_DIR_KEY_EXPIRES);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_DIR_KEY_EXPIRES);
if (parse_iso_time(tok->args[0], &cert->expires) < 0) {
goto err;
}
@@ -1763,8 +1758,7 @@
log_warn(LD_DIR, "Impossibly short router status");
goto err;
}
- tok = find_first_by_keyword(tokens, K_R);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_R);
tor_assert(tok->n_args >= 8);
if (vote_rs) {
rs = &vote_rs->status;
@@ -1810,7 +1804,7 @@
rs->or_port =(uint16_t) tor_parse_long(tok->args[6],10,0,65535,NULL,NULL);
rs->dir_port = (uint16_t) tor_parse_long(tok->args[7],10,0,65535,NULL,NULL);
- tok = find_first_by_keyword(tokens, K_S);
+ tok = find_opt_by_keyword(tokens, K_S);
if (tok && vote) {
int i;
vote_rs->flags = 0;
@@ -1858,7 +1852,7 @@
}
}
}
- if ((tok = find_first_by_keyword(tokens, K_V))) {
+ if ((tok = find_opt_by_keyword(tokens, K_V))) {
tor_assert(tok->n_args == 1);
rs->version_known = 1;
if (strcmpstart(tok->args[0], "Tor ")) {
@@ -1881,7 +1875,7 @@
}
/* handle weighting/bandwidth info */
- if ((tok = find_first_by_keyword(tokens, K_W))) {
+ if ((tok = find_opt_by_keyword(tokens, K_W))) {
int i;
for (i=0; i < tok->n_args; ++i) {
if (!strcmpstart(tok->args[i], "Bandwidth=")) {
@@ -1898,7 +1892,7 @@
}
/* parse exit policy summaries */
- if ((tok = find_first_by_keyword(tokens, K_P))) {
+ if ((tok = find_opt_by_keyword(tokens, K_P))) {
tor_assert(tok->n_args == 1);
if (strcmpstart(tok->args[0], "accept ") &&
strcmpstart(tok->args[0], "reject ")) {
@@ -1985,16 +1979,15 @@
ns = tor_malloc_zero(sizeof(networkstatus_v2_t));
memcpy(ns->networkstatus_digest, ns_digest, DIGEST_LEN);
- tok = find_first_by_keyword(tokens, K_NETWORK_STATUS_VERSION);
- tor_assert(tok && tok->n_args >= 1);
+ tok = find_by_keyword(tokens, K_NETWORK_STATUS_VERSION);
+ tor_assert(tok->n_args >= 1);
if (strcmp(tok->args[0], "2")) {
log_warn(LD_BUG, "Got a non-v2 networkstatus. Version was "
"%s", escaped(tok->args[0]));
goto err;
}
- tok = find_first_by_keyword(tokens, K_DIR_SOURCE);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_DIR_SOURCE);
tor_assert(tok->n_args >= 3);
ns->source_address = tor_strdup(tok->args[0]);
if (tor_inet_aton(tok->args[1], &in) == 0) {
@@ -2010,8 +2003,7 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_FINGERPRINT);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_FINGERPRINT);
tor_assert(tok->n_args != 0);
if (base16_decode(ns->identity_digest, DIGEST_LEN, tok->args[0],
strlen(tok->args[0]))) {
@@ -2020,13 +2012,13 @@
goto err;
}
- if ((tok = find_first_by_keyword(tokens, K_CONTACT))) {
+ if ((tok = find_opt_by_keyword(tokens, K_CONTACT))) {
tor_assert(tok->n_args != 0);
ns->contact = tor_strdup(tok->args[0]);
}
- tok = find_first_by_keyword(tokens, K_DIR_SIGNING_KEY);
- tor_assert(tok && tok->key);
+ tok = find_by_keyword(tokens, K_DIR_SIGNING_KEY);
+ tor_assert(tok->key);
ns->signing_key = tok->key;
tok->key = NULL;
@@ -2040,7 +2032,7 @@
goto err;
}
- if ((tok = find_first_by_keyword(tokens, K_DIR_OPTIONS))) {
+ if ((tok = find_opt_by_keyword(tokens, K_DIR_OPTIONS))) {
for (i=0; i < tok->n_args; ++i) {
if (!strcmp(tok->args[i], "Names"))
ns->binds_names = 1;
@@ -2054,13 +2046,13 @@
}
if (ns->recommends_versions) {
- if (!(tok = find_first_by_keyword(tokens, K_CLIENT_VERSIONS))) {
+ if (!(tok = find_opt_by_keyword(tokens, K_CLIENT_VERSIONS))) {
log_warn(LD_DIR, "Missing client-versions on versioning directory");
goto err;
}
ns->client_versions = tor_strdup(tok->args[0]);
- if (!(tok = find_first_by_keyword(tokens, K_SERVER_VERSIONS)) ||
+ if (!(tok = find_opt_by_keyword(tokens, K_SERVER_VERSIONS)) ||
tok->n_args<1) {
log_warn(LD_DIR, "Missing server-versions on versioning directory");
goto err;
@@ -2068,8 +2060,7 @@
ns->server_versions = tor_strdup(tok->args[0]);
}
- tok = find_first_by_keyword(tokens, K_PUBLISHED);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_PUBLISHED);
tor_assert(tok->n_args == 1);
if (parse_iso_time(tok->args[0], &ns->published_on) < 0) {
goto err;
@@ -2174,8 +2165,7 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_VOTE_STATUS);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_VOTE_STATUS);
tor_assert(tok->n_args != 0);
if (!strcmp(tok->args[0], "vote")) {
ns->type = NS_TYPE_VOTE;
@@ -2194,12 +2184,12 @@
}
if (ns->type == NS_TYPE_VOTE || ns->type == NS_TYPE_OPINION) {
- tok = find_first_by_keyword(tokens, K_PUBLISHED);
+ tok = find_by_keyword(tokens, K_PUBLISHED);
if (parse_iso_time(tok->args[0], &ns->published))
goto err;
ns->supported_methods = smartlist_create();
- tok = find_first_by_keyword(tokens, K_CONSENSUS_METHODS);
+ tok = find_opt_by_keyword(tokens, K_CONSENSUS_METHODS);
if (tok) {
for (i=0; i < tok->n_args; ++i)
smartlist_add(ns->supported_methods, tor_strdup(tok->args[i]));
@@ -2207,7 +2197,7 @@
smartlist_add(ns->supported_methods, tor_strdup("1"));
}
} else {
- tok = find_first_by_keyword(tokens, K_CONSENSUS_METHOD);
+ tok = find_opt_by_keyword(tokens, K_CONSENSUS_METHOD);
if (tok) {
ns->consensus_method = (int)tor_parse_long(tok->args[0], 10, 1, INT_MAX,
&ok, NULL);
@@ -2218,19 +2208,19 @@
}
}
- tok = find_first_by_keyword(tokens, K_VALID_AFTER);
+ tok = find_by_keyword(tokens, K_VALID_AFTER);
if (parse_iso_time(tok->args[0], &ns->valid_after))
goto err;
- tok = find_first_by_keyword(tokens, K_FRESH_UNTIL);
+ tok = find_by_keyword(tokens, K_FRESH_UNTIL);
if (parse_iso_time(tok->args[0], &ns->fresh_until))
goto err;
- tok = find_first_by_keyword(tokens, K_VALID_UNTIL);
+ tok = find_by_keyword(tokens, K_VALID_UNTIL);
if (parse_iso_time(tok->args[0], &ns->valid_until))
goto err;
- tok = find_first_by_keyword(tokens, K_VOTING_DELAY);
+ tok = find_by_keyword(tokens, K_VOTING_DELAY);
tor_assert(tok->n_args >= 2);
ns->vote_seconds =
(int) tor_parse_long(tok->args[0], 10, 0, INT_MAX, &ok, NULL);
@@ -2257,14 +2247,14 @@
goto err;
}
- if ((tok = find_first_by_keyword(tokens, K_CLIENT_VERSIONS))) {
+ if ((tok = find_opt_by_keyword(tokens, K_CLIENT_VERSIONS))) {
ns->client_versions = tor_strdup(tok->args[0]);
}
- if ((tok = find_first_by_keyword(tokens, K_SERVER_VERSIONS))) {
+ if ((tok = find_opt_by_keyword(tokens, K_SERVER_VERSIONS))) {
ns->server_versions = tor_strdup(tok->args[0]);
}
- tok = find_first_by_keyword(tokens, K_KNOWN_FLAGS);
+ tok = find_by_keyword(tokens, K_KNOWN_FLAGS);
ns->known_flags = smartlist_create();
inorder = 1;
for (i = 0; i < tok->n_args; ++i) {
@@ -2357,7 +2347,7 @@
}
if (ns->type != NS_TYPE_CONSENSUS &&
- (tok = find_first_by_keyword(tokens, K_LEGACY_DIR_KEY))) {
+ (tok = find_opt_by_keyword(tokens, K_LEGACY_DIR_KEY))) {
int bad = 1;
if (strlen(tok->args[0]) == HEX_DIGEST_LEN) {
networkstatus_voter_info_t *voter = smartlist_get(ns->voters, 0);
@@ -2551,8 +2541,7 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_CONSENSUS_DIGEST);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, K_CONSENSUS_DIGEST);
if (strlen(tok->args[0]) != HEX_DIGEST_LEN) {
log_warn(LD_DIR, "Wrong length on consensus-digest in detached "
"networkstatus signatures");
@@ -2565,19 +2554,19 @@
goto err;
}
- tok = find_first_by_keyword(tokens, K_VALID_AFTER);
+ tok = find_by_keyword(tokens, K_VALID_AFTER);
if (parse_iso_time(tok->args[0], &sigs->valid_after)) {
log_warn(LD_DIR, "Bad valid-after in detached networkstatus signatures");
goto err;
}
- tok = find_first_by_keyword(tokens, K_FRESH_UNTIL);
+ tok = find_by_keyword(tokens, K_FRESH_UNTIL);
if (parse_iso_time(tok->args[0], &sigs->fresh_until)) {
log_warn(LD_DIR, "Bad fresh-until in detached networkstatus signatures");
goto err;
}
- tok = find_first_by_keyword(tokens, K_VALID_UNTIL);
+ tok = find_by_keyword(tokens, K_VALID_UNTIL);
if (parse_iso_time(tok->args[0], &sigs->valid_until)) {
log_warn(LD_DIR, "Bad valid-until in detached networkstatus signatures");
goto err;
@@ -3165,12 +3154,28 @@
* NULL if no such keyword is found.
*/
static directory_token_t *
-find_first_by_keyword(smartlist_t *s, directory_keyword keyword)
+find_opt_by_keyword(smartlist_t *s, directory_keyword keyword)
{
SMARTLIST_FOREACH(s, directory_token_t *, t, if (t->tp == keyword) return t);
return NULL;
}
+/** Find the first token in <b>s</b> whose keyword is <b>keyword</b>; fail
+ * with an assert if no such keyword is found.
+ */
+static directory_token_t *
+_find_by_keyword(smartlist_t *s, directory_keyword keyword,
+ const char *keyword_as_string)
+{
+ directory_token_t *tok = find_opt_by_keyword(s, keyword);
+ if (PREDICT_UNLIKELY(!tok)) {
+ log_err(LD_BUG, "Missing %s [%d] in directory object that should have "
+ "been validated. Internal error.", keyword_as_string, (int)keyword);
+ tor_assert(tok);
+ }
+ return tok;
+}
+
/** Return a newly allocated smartlist of all accept or reject tokens in
* <b>s</b>.
*/
@@ -3497,8 +3502,7 @@
goto err;
}
/* Parse base32-encoded descriptor ID. */
- tok = find_first_by_keyword(tokens, R_RENDEZVOUS_SERVICE_DESCRIPTOR);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_RENDEZVOUS_SERVICE_DESCRIPTOR);
tor_assert(tok == smartlist_get(tokens, 0));
tor_assert(tok->n_args == 1);
if (strlen(tok->args[0]) != REND_DESC_ID_V2_LEN_BASE32 ||
@@ -3513,8 +3517,7 @@
goto err;
}
/* Parse descriptor version. */
- tok = find_first_by_keyword(tokens, R_VERSION);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_VERSION);
tor_assert(tok->n_args == 1);
result->version =
(int) tor_parse_long(tok->args[0], 10, 0, INT_MAX, &num_ok, NULL);
@@ -3528,13 +3531,11 @@
goto err;
}
/* Parse public key. */
- tok = find_first_by_keyword(tokens, R_PERMANENT_KEY);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_PERMANENT_KEY);
result->pk = tok->key;
tok->key = NULL; /* Prevent free */
/* Parse secret ID part. */
- tok = find_first_by_keyword(tokens, R_SECRET_ID_PART);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_SECRET_ID_PART);
tor_assert(tok->n_args == 1);
if (strlen(tok->args[0]) != REND_SECRET_ID_PART_LEN_BASE32 ||
strspn(tok->args[0], BASE32_CHARS) != REND_SECRET_ID_PART_LEN_BASE32) {
@@ -3548,16 +3549,14 @@
}
/* Parse publication time -- up-to-date check is done when storing the
* descriptor. */
- tok = find_first_by_keyword(tokens, R_PUBLICATION_TIME);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_PUBLICATION_TIME);
tor_assert(tok->n_args == 1);
if (parse_iso_time(tok->args[0], &result->timestamp) < 0) {
log_warn(LD_REND, "Invalid publication time: '%s'", tok->args[0]);
goto err;
}
/* Parse protocol versions. */
- tok = find_first_by_keyword(tokens, R_PROTOCOL_VERSIONS);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_PROTOCOL_VERSIONS);
tor_assert(tok->n_args == 1);
versions = smartlist_create();
smartlist_split_string(versions, tok->args[0], ",",
@@ -3572,7 +3571,7 @@
SMARTLIST_FOREACH(versions, char *, cp, tor_free(cp));
smartlist_free(versions);
/* Parse encrypted introduction points. Don't verify. */
- tok = find_first_by_keyword(tokens, R_INTRODUCTION_POINTS);
+ tok = find_opt_by_keyword(tokens, R_INTRODUCTION_POINTS);
if (tok) {
if (strcmp(tok->object_type, "MESSAGE")) {
log_warn(LD_DIR, "Bad object type: introduction points should be of "
@@ -3587,8 +3586,7 @@
*intro_points_encrypted_size_out = 0;
}
/* Parse and verify signature. */
- tok = find_first_by_keyword(tokens, R_SIGNATURE);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_SIGNATURE);
note_crypto_pk_op(VERIFY_RTR);
if (check_signature_token(desc_hash, tok, result->pk, 0,
"v2 rendezvous service descriptor") < 0)
@@ -3786,8 +3784,7 @@
intro = tor_malloc_zero(sizeof(rend_intro_point_t));
info = intro->extend_info = tor_malloc_zero(sizeof(extend_info_t));
/* Parse identifier. */
- tok = find_first_by_keyword(tokens, R_IPO_IDENTIFIER);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, R_IPO_IDENTIFIER);
if (base32_decode(info->identity_digest, DIGEST_LEN,
tok->args[0], REND_INTRO_POINT_ID_LEN_BASE32) < 0) {
log_warn(LD_REND, "Identity digest contains illegal characters: %s",
@@ -3800,7 +3797,7 @@
base16_encode(info->nickname + 1, sizeof(info->nickname) - 1,
info->identity_digest, DIGEST_LEN);
/* Parse IP address. */
- tok = find_first_by_keyword(tokens, R_IPO_IP_ADDRESS);
+ tok = find_by_keyword(tokens, R_IPO_IP_ADDRESS);
if (tor_addr_from_str(&info->addr, tok->args[0])<0) {
log_warn(LD_REND, "Could not parse introduction point address.");
rend_intro_point_free(intro);
@@ -3813,7 +3810,7 @@
}
/* Parse onion port. */
- tok = find_first_by_keyword(tokens, R_IPO_ONION_PORT);
+ tok = find_by_keyword(tokens, R_IPO_ONION_PORT);
info->port = (uint16_t) tor_parse_long(tok->args[0],10,1,65535,
&num_ok,NULL);
if (!info->port || !num_ok) {
@@ -3823,11 +3820,11 @@
goto err;
}
/* Parse onion key. */
- tok = find_first_by_keyword(tokens, R_IPO_ONION_KEY);
+ tok = find_by_keyword(tokens, R_IPO_ONION_KEY);
info->onion_key = tok->key;
tok->key = NULL; /* Prevent free */
/* Parse service key. */
- tok = find_first_by_keyword(tokens, R_IPO_SERVICE_KEY);
+ tok = find_by_keyword(tokens, R_IPO_SERVICE_KEY);
intro->intro_key = tok->key;
tok->key = NULL; /* Prevent free */
/* Add extend info to list of introduction points. */
@@ -3897,8 +3894,7 @@
goto err;
}
/* Parse client name. */
- tok = find_first_by_keyword(tokens, C_CLIENT_NAME);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, C_CLIENT_NAME);
tor_assert(tok == smartlist_get(tokens, 0));
tor_assert(tok->n_args == 1);
@@ -3920,15 +3916,14 @@
parsed_entry->client_name = tor_strdup(tok->args[0]);
strmap_set(parsed_clients, parsed_entry->client_name, parsed_entry);
/* Parse client key. */
- tok = find_first_by_keyword(tokens, C_CLIENT_KEY);
+ tok = find_opt_by_keyword(tokens, C_CLIENT_KEY);
if (tok) {
parsed_entry->client_key = tok->key;
tok->key = NULL; /* Prevent free */
}
/* Parse descriptor cookie. */
- tok = find_first_by_keyword(tokens, C_DESCRIPTOR_COOKIE);
- tor_assert(tok);
+ tok = find_by_keyword(tokens, C_DESCRIPTOR_COOKIE);
tor_assert(tok->n_args == 1);
if (strlen(tok->args[0]) != REND_DESC_COOKIE_LEN_BASE64 + 2) {
log_warn(LD_REND, "Descriptor cookie has illegal length: %s",