osf1 man page for bindresvport

bindresvport(3) 					     Library Functions Manual						   bindresvport(3)

NAME
       bindresvport - bind a socket to a privileged IP port

SYNOPSIS
       #include <sys/types.h>
       #include <netinet/in.h>
       #include <unistd.h>

       int bindresvport(sd, sin)
       int sd;
       struct sockaddr_in *sin;

DESCRIPTION
       bindresvport()  is  used  to  bind  a  socket  descriptor to a privileged IP port, that is, a port number in the range 0-1023.  The routine
       returns 0 if it is successful, otherwise -1 is returned and errno set to reflect the cause of the error. This routine differs  with  rresv-
       port (see rcmd(3)) in that this works for any IP socket, whereas rresvport() only works for TCP.

       Only root can bind to a privileged port; this call will fail for any other users.

RELATED INFORMATION
       rcmd(3) delim off

																   bindresvport(3)