controller-legacy/helpers/get_port.c

#include <sys/socket.h>
#include <arpa/inet.h>
#include <stdint.h>
#include <errno.h>
#include <string.h>

#include <helpers.h>
#include <logger.h>

uint16_t
helper_get_port(int sock)
{
    struct sockaddr_in sin;
    socklen_t len = sizeof(sin);
    if (getsockname(sock, (struct sockaddr *)&sin, &len) == -1)
    {
        LOG_ERROR("could not get socket name for port: %s\n", strerror(errno));
        return 0;
    }
    else
    {
        return ntohs(sin.sin_port);
    }
}