.\"
.\" Copyright (c) 1994, 1995 Joerg Wunsch
.\"
.\" All rights reserved.
.\"
.\" This program is free software.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\" This product includes software developed by Joerg Wunsch
.\" 4. The name of the developer may not be used to endorse or promote
.\"    products derived from this software without specific prior written
.\"    permission.
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.\" $FreeBSD: src/lib/libcompat/4.1/cftime.3,v 1.6.2.4 2001/12/17 10:08:28 ru Exp $
.\" $DragonFly: src/lib/libcompat/4.1/cftime.3,v 1.2 2003/06/17 04:26:48 dillon Exp $
.\"
.Dd June 15, 1993
.Os
.Dt CFTIME 3
.Sh NAME
.Nm cftime
.Nm ascftime
.Nd convert date and time to string
.Sh LIBRARY
.Lb libcompat
.Sh SYNOPSIS
.In time.h
.Ft int
.Fn cftime "char *s" "char *format" "const time_t *clock"
.Ft int
.Fn ascftime "char *s" "const char *format" "const struct tm *tmptr"
.Sh DESCRIPTION
.Bf -symbolic
The
.Fn cftime
and
.Fn ascftime
functions are made obsolete by
.Xr strftime 3 .
.Ef
.Pp
Use of the functions
.Fn cftime
and
.Fn ascftime
is strongly deprecated, since there is no way to check for a buffer
overflow condition.
Use
.Xr strftime 3
instead.
.Pp
.Fn Ascftime
is almost identical with
.Xr strftime 3 ,
with the only exception there's no parameter to tell about the
maximal buffer length, and the
.Fa format
parameter defaults to
.Dq %C
if a
.Em NULL
pointer is given.
.Pp
.Fn Cftime
does the same job, but it first invokes
.Xr localtime 3
in order to convert the given
.Fa clock ,
then also performs the conversions as requested by the
.Fa format
argument.
.Sh RETURN VALUES
The
.Fn cftime
and
.Fn ascftime
functions return the number of characters written to the output
buffer
.Fa s ,
not counting the trailing null character.
.Sh SEE ALSO
.Xr localtime 3 ,
.Xr strftime 3