.\" @(#)bindresvport.3n 2.2 88/08/02 4.0 RPCSRC; from 1.7 88/03/14 SMI
.TH BINDRESVPORT 3 1987-11-22
.SH NAME
bindresvport \- bind a socket to a privileged IP port
.SH SYNOPSIS
.nf
.B #include
.B #include
.LP
.B int bindresvport(sd, sin)
.B int sd;
.B struct sockaddr_in \(**sin;
.fi
.SH DESCRIPTION
.LP
.B bindresvport()
is used to bind a socket descriptor to a privileged
.SM 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
.I errno
set to reflect the cause of the error.
.LP
Only root can bind to a privileged port; this call will fail for any
other users.
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