freebsd-dev/lib/libc/gen/getosreldate.3
Ruslan Ermilov 5b58c5a0d5 Fixed copyright.
Tidy up the markup.
Only describe the new, post-2.0 behavior.
Added the RETURN VALUES and ERRORS sections.
2003-02-24 22:55:33 +00:00

78 lines
2.4 KiB
Groff

.\" Copyright (c) 2002 The FreeBSD Project.
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" 1. Redistributions of source code must retain the above copyright
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" $FreeBSD$
.\"
.Dd January 30, 2003
.Dt GETOSRELDATE 3
.Os
.Sh NAME
.Nm getosreldate
.Nd get the value of
.Dv __FreeBSD_version
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In osreldate.h
.Ft int
.Fn getosreldate void
.Sh DESCRIPTION
The
.Fn getosreldate
function returns an integer showing the version of the
currently running
.Fx
kernel.
Definitions of the values can be found in
.%B "The Porter's Handbook"
which is usually installed at
.Pa /usr/share/doc/en_US.ISO8859-1/books/porters-handbook/ .
.Sh RETURN VALUES
Upon successful completion,
.Fn getosreldate
returns the value requested;
otherwise the value \-1 is returned and the global variable
.Va errno
is set to indicate the error.
.Sh EXAMPLES
An example can be found in
.Pa /usr/share/examples/FreeBSD_version .
.Sh ERRORS
The
.Fn getosreldate
function may fail and set
.Va errno
for any of the errors specified for the library function
.Xr sysctl 3 .
.Sh SEE ALSO
.Rs
.%B "The Porter's Handbook"
.%O /usr/share/doc/en_US.ISO8859-1/books/porters\-handbook/
.Re
.Sh HISTORY
The
.Fn getosreldate
function appeared in
.Fx 2.0 .