From b0d8ed94fe9e74afb49fdf5f11e4add29879c65c Mon Sep 17 00:00:00 2001
From: Rene Mayrhofer <rene@mayrhofer.eu.org>
Date: Thu, 12 Apr 2007 20:30:08 +0000
Subject: [svn-upgrade] Integrating new upstream version, strongswan (4.1.1)

---
 src/libfreeswan/goodmask.3 | 57 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 src/libfreeswan/goodmask.3

(limited to 'src/libfreeswan/goodmask.3')

diff --git a/src/libfreeswan/goodmask.3 b/src/libfreeswan/goodmask.3
new file mode 100644
index 000000000..4a573e51e
--- /dev/null
+++ b/src/libfreeswan/goodmask.3
@@ -0,0 +1,57 @@
+.TH IPSEC_GOODMASK 3 "11 June 2001"
+.\" RCSID $Id: goodmask.3,v 1.1 2004/03/15 20:35:26 as Exp $
+.SH NAME
+ipsec goodmask \- is this Internet subnet mask a valid one?
+.br
+ipsec masktobits \- convert Internet subnet mask to bit count
+.br
+ipsec bitstomask \- convert bit count to Internet subnet mask
+.SH SYNOPSIS
+.B "#include <freeswan.h>
+.sp
+.B "int goodmask(struct in_addr mask);"
+.br
+.B "int masktobits(struct in_addr mask);"
+.br
+.B "struct in_addr bitstomask(int n);"
+.SH DESCRIPTION
+These functions are obsolete;
+see
+.IR ipsec_masktocount (3)
+for a partial replacement.
+.PP
+.I Goodmask
+reports whether the subnet
+.I mask
+is a valid one,
+i.e. consists of a (possibly empty) sequence of
+.BR 1 s
+followed by a (possibly empty) sequence of
+.BR 0 s.
+.I Masktobits
+takes a (valid) subnet mask and returns the number of
+.B 1
+bits in it.
+.I Bitstomask
+reverses this,
+returning the subnet mask corresponding to bit count
+.IR n .
+.PP
+All masks are in network byte order.
+.SH SEE ALSO
+inet(3), ipsec_atosubnet(3)
+.SH DIAGNOSTICS
+.I Masktobits
+returns
+.B \-1
+for an invalid mask.
+.I Bitstomask
+returns an all-zeros mask for a negative or out-of-range
+.IR n .
+.SH HISTORY
+Written for the FreeS/WAN project by Henry Spencer.
+.SH BUGS
+The error-reporting convention of
+.I bitstomask
+is less than ideal;
+zero is sometimes a legitimate mask.
-- 
cgit v1.2.3