1.\" 2.\" Copyright (c) 1997 Joerg Wunsch 3.\" 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 16.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 19.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25.\" 26.\" $Id: strptime.3,v 1.1 1997/08/09 15:43:54 joerg Exp $ 27.\" " 28.Dd May 8, 1997 29.Dt STRPTIME 3 30.Os 31.Sh NAME 32.Nm strptime 33.Nd parse date and time string 34.Sh SYNOPSIS 35.Fd #include <time.h> 36.Ft char * 37.Fn strptime "const char *buf" "const char *format" "struct tm *timeptr" 38.Sh DESCRIPTION 39The 40.Fn strptime 41function parses the string in the buffer 42.Fa buf 43according to the string pointed to by 44.Fa format , 45and fills in the elements of the structure pointed to by 46.Fa timeptr . 47Thus, it can be considered the reverse operation of 48.Xr strftime 3 . 49.Pp 50The 51.Fa format 52string consists of zero or more conversion specifications and 53ordinary characters. 54All ordinary characters are matched exactly with the buffer, where 55white space in the format string will match any amount of white space 56in the buffer. 57All conversion specifications are identical to those described in 58.Xr strftime 3 . 59.Sh RETURN VALUES 60Upon successful completion, 61.Fn strptime 62returns the pointer to the first character in 63.Fa buf 64that has not been required to satisfy the specified conversions in 65.Fa format . 66It returns 67.Dv NULL 68if one of the conversions failed. 69.Sh SEE ALSO 70.Xr date 1 , 71.Xr scanf 3 , 72.Xr strftime 3 73.Sh AUTHORS 74The 75.Fn strptime 76function has been contributed by Powerdog Industries. 77.Pp 78This man page was written by 79.ie t J\(:org Wunsch. 80.el Joerg Wunsch. 81.Sh HISTORY 82The 83.Fn strptime 84function appeared in 85.Fx 3.0 . 86