fix(http_client): Set common tcp config to both TCP and SSL transport

Foundation transport contained TCP properties for both TCP and SSL
transport, so it was enough to set the TCP connection properties
(keepalive, interface binding) to one transport only. After merging
5778a7c we have separate TCP properties for these transports and need
to set the same for both.
This commit also fixes unnecessary allocation of 1 more byte for if_name

Closes espressif/esp-protocols#322

components/esp_http_client/esp_http_client.c

@@ -627,6 +627,25 @@ static char *_get_host_header(char *host, int port)
     return host_name;
 }
 
+static bool init_common_tcp_transport(esp_http_client_handle_t client, const esp_http_client_config_t *config, esp_transport_handle_t transport)
+{
+    if (config->keep_alive_enable == true) {
+        client->keep_alive_cfg.keep_alive_enable = true;
+        client->keep_alive_cfg.keep_alive_idle = (config->keep_alive_idle == 0) ? DEFAULT_KEEP_ALIVE_IDLE : config->keep_alive_idle;
+        client->keep_alive_cfg.keep_alive_interval = (config->keep_alive_interval == 0) ? DEFAULT_KEEP_ALIVE_INTERVAL : config->keep_alive_interval;
+        client->keep_alive_cfg.keep_alive_count =  (config->keep_alive_count == 0) ? DEFAULT_KEEP_ALIVE_COUNT : config->keep_alive_count;
+        esp_transport_tcp_set_keep_alive(transport, &client->keep_alive_cfg);
+    }
+
+    if (config->if_name) {
+        client->if_name = calloc(1, sizeof(struct ifreq));
+        ESP_RETURN_ON_FALSE(client->if_name, false, TAG, "Memory exhausted");
+        memcpy(client->if_name, config->if_name, sizeof(struct ifreq));
+        esp_transport_tcp_set_interface_name(transport, client->if_name);
+    }
+    return true;
+}
+
 esp_http_client_handle_t esp_http_client_init(const esp_http_client_config_t *config)
 {
 
@@ -665,20 +684,7 @@ esp_http_client_handle_t esp_http_client_init(const esp_http_client_config_t *co
         goto error;
     }
 
-    if (config->keep_alive_enable == true) {
-        client->keep_alive_cfg.keep_alive_enable = true;
-        client->keep_alive_cfg.keep_alive_idle = (config->keep_alive_idle == 0) ? DEFAULT_KEEP_ALIVE_IDLE : config->keep_alive_idle;
-        client->keep_alive_cfg.keep_alive_interval = (config->keep_alive_interval == 0) ? DEFAULT_KEEP_ALIVE_INTERVAL : config->keep_alive_interval;
-        client->keep_alive_cfg.keep_alive_count =  (config->keep_alive_count == 0) ? DEFAULT_KEEP_ALIVE_COUNT : config->keep_alive_count;
-        esp_transport_tcp_set_keep_alive(tcp, &client->keep_alive_cfg);
-    }
-
-    if (config->if_name) {
-        client->if_name = calloc(1, sizeof(struct ifreq) + 1);
-        ESP_GOTO_ON_FALSE(client->if_name, ESP_FAIL, error, TAG, "Memory exhausted");
-        memcpy(client->if_name, config->if_name, sizeof(struct ifreq));
-        esp_transport_tcp_set_interface_name(tcp, client->if_name);
-    }
+    ESP_GOTO_ON_FALSE(init_common_tcp_transport(client, config, tcp), ESP_FAIL, error, TAG, "Failed to set TCP config");
 
 #ifdef CONFIG_ESP_HTTP_CLIENT_ENABLE_HTTPS
     esp_transport_handle_t ssl = NULL;
@@ -693,6 +699,8 @@ esp_http_client_handle_t esp_http_client_init(const esp_http_client_config_t *co
         goto error;
     }
 
+    ESP_GOTO_ON_FALSE(init_common_tcp_transport(client, config, ssl), ESP_FAIL, error, TAG, "Failed to set SSL config");
+
     if (config->crt_bundle_attach != NULL) {
 #ifdef CONFIG_MBEDTLS_CERTIFICATE_BUNDLE
         esp_transport_ssl_crt_bundle_attach(ssl, config->crt_bundle_attach);