1.\" $NetBSD: base64.1,v 1.4 2021/08/28 10:29:15 christos Exp $ 2.\" 3.\" Copyright (c) 2018 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Christos Zoulas. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.\" 31.Dd August 28, 2021 32.Dt BASE64 1 33.Os 34.Sh NAME 35.Nm base64 36.Nd base64 encode/decode data into the standard output 37.Sh SYNOPSIS 38.Nm 39.Op Fl di 40.Op Fl w Ar wrap 41.Op Ar 42.Sh DESCRIPTION 43.Nm 44reads from the standard input or from each file argument, and encodes 45or decodes data based on the base64 scheme described in RFC 3548 into 46the standard output. 47.Pp 48The following options are available: 49.Bl -tag -width XXXXXXX 50.It Fl d 51Decode the input instead of encoding it. 52.It Fl i 53Ignore non-base64 characters when decoding. (not implemented) 54.It Fl w Ar wrap 55Wrap lines longer than 56.Ar wrap 57characters using a newline. 58The default number of characters is 76. 590 disables wrapping. 60.El 61.Sh EXIT STATUS 62.Nm 63exits with 0 if there was no error and non-zero if it could not encode or 64decode, printing an error message. 65.\" .Sh SEE ALSO 66.\" .Xr b64_ntop 3 , 67.\" .Xr b64_pton 3 68.Sh HISTORY 69The 70.Nm 71command first appeared on 72.\" Linux ?, MacOS/X ?, and 73.Nx 9 . 74.Sh AUTHORS 75.An Christos Zoulas 76