/* Function to add headers to the HTTP message structure */
void http_message_add_headers(http_message_t *msg, const char **headers, unsigned int num_headers) {
    const char **new_headers;
    unsigned int i;

    if (headers == NULL) {
        return;
    }

    // Check if there is enough space, if not, reallocate
    if (msg->headers.used + num_headers > msg->headers.total) {
        new_headers = (const char **) safecalloc (msg->headers.total * 2, sizeof(char *));
        if (new_headers == NULL) {
            return;  // Allocation failed, potential for use-after-free if not handled
        }

        // Copy existing headers to the new array
        for (i = 0; i != msg->headers.used; ++i) {
            new_headers[i] = msg->headers.strings[i];
        }
        safefree(msg->headers.strings);  // Free old array
        msg->headers.strings = new_headers;  // Danger if old pointers are used post this point
        msg->headers.total *= 2;
    }

    // Add new headers to the structure
    for (i = 0; i != num_headers; ++i) {
        msg->headers.strings[i + msg->headers.used] = headers[i];
    }
    msg->headers.used += num_headers;
}