f67e4a8fc7
associated changes that had to happen to make this possible as well as
bugs fixed along the way.
Bring in required TLI library routines to support this.
Since we don't support TLI we've essentially copied what NetBSD
has done, adding a thin layer to emulate direct the TLI calls
into BSD socket calls.
This is mostly from Sun's tirpc release that was made in 1994,
however some fixes were backported from the 1999 release (supposedly
only made available after this porting effort was underway).
The submitter has agreed to continue on and bring us up to the
1999 release.
Several key features are introduced with this update:
Client calls are thread safe. (1999 code has server side thread
safe)
Updated, a more modern interface.
Many userland updates were done to bring the code up to par with
the recent RPC API.
There is an update to the pthreads library, a function
pthread_main_np() was added to emulate a function of Sun's threads
library.
While we're at it, bring in NetBSD's lockd, it's been far too
long of a wait.
New rpcbind(8) replaces portmap(8) (supporting communication over
an authenticated Unix-domain socket, and by default only allowing
set and unset requests over that channel). It's much more secure
than the old portmapper.
Umount(8), mountd(8), mount_nfs(8), nfsd(8) have also been upgraded
to support TI-RPC and to support IPV6.
Umount(8) is also fixed to unmount pathnames longer than 80 chars,
which are currently truncated by the Kernel statfs structure.
Submitted by: Martin Blapp <mb@imp.ch>
Manpage review: ru
Secure RPC implemented by: wpaul
98 lines
2.0 KiB
Groff
98 lines
2.0 KiB
Groff
.\" @(#)bindresvport.3n 2.2 88/08/02 4.0 RPCSRC; from 1.7 88/03/14 SMI
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.\" $NetBSD: bindresvport.3,v 1.8 2000/07/05 15:45:33 msaitoh Exp $
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.\" $FreeBSD$
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.\"
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.Dd November 22, 1987
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.Dt BINDRESVPORT 3
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.Os
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.Sh NAME
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.Nm bindresvport ,
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.Nm bindresvport_sa
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.Nd bind a socket to a privileged IP port
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.Fd #include <sys/types.h>
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.Fd #include <rpc/rpc.h>
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.Ft int
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.Fn bindresvport "int sd" "struct sockaddr_in *sin"
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.Ft int
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.Fn bindresvport_sa "int sd" "struct sockaddr *sa"
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.Sh DESCRIPTION
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.Fn bindresvport
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and
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.Fn bindresvport_sa
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are used to bind a socket descriptor to a privileged
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.Tn IP
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port, that is, a
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port number in the range 0-1023.
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.Pp
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If
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.Fa sin
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is a pointer to a
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.Ft "struct sockaddr_in"
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then the appropriate fields in the structure should be defined.
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Note that
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.Fa sin->sin_family
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must be initialized to the address family of the socket, passed by
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.Fa sd .
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If
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.Fa sin->sin_port
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is
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.Sq 0
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then an anonymous port (in the range 600-1023) will be
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chosen, and if
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.Xr bind 2
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is successful, the
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.Fa sin->sin_port
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will be updated to contain the allocated port.
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.Pp
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If
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.Fa sin
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is the
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.Dv NULL
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pointer,
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an anonymous port will be allocated (as above).
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However, there is no way for
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.Fn bindresvport
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to return the allocated port in this case.
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.Pp
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Only root can bind to a privileged port; this call will fail for any
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other users.
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.Pp
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Function prototype of
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.Fn bindresvport
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is biased to
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.Dv AF_INET
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socket.
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.Fn bindresvport_sa
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acts exactly the same, with more neutral function prototype.
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Note that both functions behave exactly the same, and
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both support
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.Dv AF_INET6
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sockets as well as
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.Dv AF_INET
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sockets.
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.Sh RETURN VALUES
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.Rv -std bindresvport
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.Sh ERRORS
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.Bl -tag -width Er
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.It Bq Er EPFNOSUPPORT
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If second argument was supplied,
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and address family did not match between arguments.
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.El
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.Pp
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.Fn bindresvport
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may also fail and set
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.Va errno
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for any of the errors specified for the calls
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.Xr bind 2 ,
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.Xr getsockopt 2 ,
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or
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.Xr setsockopt 2 .
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.Sh SEE ALSO
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.Xr bind 2 ,
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.Xr getsockopt 2 ,
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.Xr setsockopt 2 ,
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.Xr ip 4
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