fix: correct OAuth URL size calculation in Azure Kusto configuration

Signed-off-by: thimmegowni.venkatesu <[email protected]>

Author: thimmegowni.venkatesu

plugins/out_azure_kusto/azure_kusto.c

@@ -83,8 +83,8 @@ static int azure_kusto_get_service_principal_token(struct flb_azure_kusto *ctx)
     }
 
     /* scope depends on cloud environment */
-        const char *scope = flb_azure_kusto_get_scope(ctx->cloud_environment);
-        ret = flb_oauth2_payload_append(ctx->o, "scope", 5, scope, strlen(scope));
+    const char *scope = flb_azure_kusto_get_scope(ctx->cloud_environment);
+    ret = flb_oauth2_payload_append(ctx->o, "scope", 5, scope, strlen(scope));
 
     if (ret == -1) {
         flb_plg_error(ctx->ins, "error appending oauth2 params");

plugins/out_azure_kusto/azure_kusto_conf.c

@@ -857,7 +857,7 @@ struct flb_azure_kusto *flb_azure_kusto_conf_create(struct flb_output_instance *
     } else {
         /* Standard OAuth2 for service principal or workload identity */
         const char *tmpl = get_msal_auth_url_template(ctx->cloud_environment);
-        ctx->oauth_url = flb_sds_create_size(sizeof(tmpl) - 1 + flb_sds_len(ctx->tenant_id));
+        ctx->oauth_url = flb_sds_create_size(strlen(tmpl) + flb_sds_len(ctx->tenant_id) + 1);
         if (!ctx->oauth_url) {
             flb_errno();
             flb_azure_kusto_conf_destroy(ctx);