** listening socket, return non-zero.
*/
int cgi_http_server(int mnPort, int mxPort, char *zBrowser){
#ifdef __MINGW32__
  /* Use win32_http_server() instead */
  exit(1);
#else
  int listener;                /* The server socket */
  int connection;              /* A socket for each individual connection */
  fd_set readfds;              /* Set of file descriptors for select() */
  size_t lenaddr;              /* Length of the inaddr structure */
  int child;                   /* PID of the child process */
  int nchildren = 0;           /* Number of child processes */
  struct timeval delay;        /* How long to wait inside select() */
  struct sockaddr_in inaddr;   /* The socket address */