static int s_construct_endpoint()

in source/credentials_provider_sts_web_identity.c [868:909]

• 35 lines of code
• 14 McCabe index (conditional complexity)

static int s_construct_endpoint(
    struct aws_allocator *allocator,
    struct aws_byte_buf *endpoint,
    const struct aws_string *region,
    const struct aws_string *service_name) {

    if (!allocator || !endpoint || !region || !service_name) {
        return AWS_ERROR_INVALID_ARGUMENT;
    }
    aws_byte_buf_clean_up(endpoint);

    struct aws_byte_cursor service_cursor = aws_byte_cursor_from_string(service_name);
    if (aws_byte_buf_init_copy_from_cursor(endpoint, allocator, service_cursor)) {
        goto on_error;
    }

    if (aws_byte_buf_append_dynamic(endpoint, &s_dot_cursor)) {
        goto on_error;
    }

    struct aws_byte_cursor region_cursor;
    region_cursor = aws_byte_cursor_from_array(region->bytes, region->len);
    if (aws_byte_buf_append_dynamic(endpoint, &region_cursor)) {
        goto on_error;
    }

    if (aws_byte_buf_append_dynamic(endpoint, &s_amazonaws_cursor)) {
        goto on_error;
    }

    if (aws_string_eq_c_str_ignore_case(region, "cn-north-1") ||
        aws_string_eq_c_str_ignore_case(region, "cn-northwest-1")) {
        if (aws_byte_buf_append_dynamic(endpoint, &s_cn_cursor)) {
            goto on_error;
        }
    }
    return AWS_OP_SUCCESS;

on_error:
    aws_byte_buf_clean_up(endpoint);
    return AWS_OP_ERR;
}