diff options
Diffstat (limited to 'src/core/ext/filters/client_channel/resolver/dns/c_ares')
| -rw-r--r-- | src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c | 6 | ||||
| -rw-r--r-- | src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c | 25 |
2 files changed, 17 insertions, 14 deletions
diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c index b87a3b7082..9bb229ad95 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c @@ -204,7 +204,7 @@ static char *choose_service_config(char *service_config_choice_json) { int random_pct = rand() % 100; int percentage; if (sscanf(field->value, "%d", &percentage) != 1 || - random_pct > percentage) { + random_pct > percentage || percentage == 0) { service_config_json = NULL; break; } @@ -249,7 +249,7 @@ static void dns_ares_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, service_config_string); args_to_remove[num_args_to_remove++] = GRPC_ARG_SERVICE_CONFIG; new_args[num_args_to_add++] = grpc_channel_arg_string_create( - GRPC_ARG_SERVICE_CONFIG, service_config_string); + (char *)GRPC_ARG_SERVICE_CONFIG, service_config_string); service_config = grpc_service_config_create(service_config_string); if (service_config != NULL) { const char *lb_policy_name = @@ -257,7 +257,7 @@ static void dns_ares_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, if (lb_policy_name != NULL) { args_to_remove[num_args_to_remove++] = GRPC_ARG_LB_POLICY_NAME; new_args[num_args_to_add++] = grpc_channel_arg_string_create( - GRPC_ARG_LB_POLICY_NAME, (char *)lb_policy_name); + (char *)GRPC_ARG_LB_POLICY_NAME, (char *)lb_policy_name); } } } diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c index 0ffb38518a..04379975e1 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c @@ -275,14 +275,15 @@ static void on_txt_done_cb(void *arg, int status, int timeouts, gpr_log(GPR_DEBUG, "on_txt_done_cb"); char *error_msg; grpc_ares_request *r = (grpc_ares_request *)arg; + const size_t prefix_len = sizeof(g_service_config_attribute_prefix) - 1; + struct ares_txt_ext *result = NULL; + struct ares_txt_ext *reply = NULL; + grpc_error *error = GRPC_ERROR_NONE; gpr_mu_lock(&r->mu); if (status != ARES_SUCCESS) goto fail; - struct ares_txt_ext *reply = NULL; status = ares_parse_txt_reply_ext(buf, len, &reply); if (status != ARES_SUCCESS) goto fail; // Find service config in TXT record. - const size_t prefix_len = sizeof(g_service_config_attribute_prefix) - 1; - struct ares_txt_ext *result; for (result = reply; result != NULL; result = result->next) { if (result->record_start && memcmp(result->txt, g_service_config_attribute_prefix, prefix_len) == @@ -313,7 +314,7 @@ static void on_txt_done_cb(void *arg, int status, int timeouts, fail: gpr_asprintf(&error_msg, "C-ares TXT lookup status is not ARES_SUCCESS: %s", ares_strerror(status)); - grpc_error *error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); + error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); gpr_free(error_msg); if (r->error == GRPC_ERROR_NONE) { r->error = error; @@ -331,6 +332,9 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( grpc_closure *on_done, grpc_lb_addresses **addrs, bool check_grpclb, char **service_config_json) { grpc_error *error = GRPC_ERROR_NONE; + grpc_ares_hostbyname_request *hr = NULL; + grpc_ares_request *r = NULL; + ares_channel *channel = NULL; /* TODO(zyc): Enable tracing after #9603 is checked in */ /* if (grpc_dns_trace) { gpr_log(GPR_DEBUG, "resolve_address (blocking): name=%s, default_port=%s", @@ -360,8 +364,7 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( error = grpc_ares_ev_driver_create(&ev_driver, interested_parties); if (error != GRPC_ERROR_NONE) goto error_cleanup; - grpc_ares_request *r = - (grpc_ares_request *)gpr_zalloc(sizeof(grpc_ares_request)); + r = (grpc_ares_request *)gpr_zalloc(sizeof(grpc_ares_request)); gpr_mu_init(&r->mu); r->ev_driver = ev_driver; r->on_done = on_done; @@ -369,7 +372,7 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( r->service_config_json_out = service_config_json; r->success = false; r->error = GRPC_ERROR_NONE; - ares_channel *channel = grpc_ares_ev_driver_get_channel(r->ev_driver); + channel = grpc_ares_ev_driver_get_channel(r->ev_driver); // If dns_server is specified, use it. if (dns_server != NULL) { @@ -410,12 +413,12 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( } gpr_ref_init(&r->pending_queries, 1); if (grpc_ipv6_loopback_available()) { - grpc_ares_hostbyname_request *hr = create_hostbyname_request( - r, host, strhtons(port), false /* is_balancer */); + hr = create_hostbyname_request(r, host, strhtons(port), + false /* is_balancer */); ares_gethostbyname(*channel, hr->host, AF_INET6, on_hostbyname_done_cb, hr); } - grpc_ares_hostbyname_request *hr = create_hostbyname_request( - r, host, strhtons(port), false /* is_balancer */); + hr = create_hostbyname_request(r, host, strhtons(port), + false /* is_balancer */); ares_gethostbyname(*channel, hr->host, AF_INET, on_hostbyname_done_cb, hr); if (check_grpclb) { /* Query the SRV record */ |