mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-05 01:30:43 +00:00
66e062451e
PR: bin/31156 MFC after: 1 week
107 lines
3.8 KiB
Groff
107 lines
3.8 KiB
Groff
.\" Copyright (c) 1989, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" 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 the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)uuencode.format.5 8.2 (Berkeley) 1/12/94
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd January 12, 1994
|
|
.Dt UUENCODE 5
|
|
.Os
|
|
.Sh NAME
|
|
.Nm uuencode
|
|
.Nd format of an encoded uuencode file
|
|
.Sh DESCRIPTION
|
|
Files output by
|
|
.Xr uuencode 1
|
|
consist of a header line,
|
|
followed by a number of body lines,
|
|
and a trailer line.
|
|
The
|
|
.Xr uudecode 1
|
|
command
|
|
will ignore any lines preceding the header or
|
|
following the trailer.
|
|
Lines preceding a header must not, of course,
|
|
look like a header.
|
|
.Pp
|
|
The header line is distinguished by having the first
|
|
6 characters
|
|
.Dq begin\ \&
|
|
(note the trailing space).
|
|
The word
|
|
.Em begin
|
|
is followed by a mode (in octal),
|
|
and a string which names the remote file.
|
|
A space separates the three items in the header line.
|
|
.Pp
|
|
The body consists of a number of lines, each at most 62 characters
|
|
long (including the trailing newline).
|
|
These consist of a character count,
|
|
followed by encoded characters,
|
|
followed by a newline.
|
|
The character count is a single printing character,
|
|
and represents an integer, the number of bytes
|
|
the rest of the line represents.
|
|
Such integers are always in the range from 1 to 45 or 64 and can
|
|
be determined by subtracting the character space (octal 40)
|
|
from the character.
|
|
Character 64 represents a count of zero.
|
|
.Pp
|
|
Groups of 3 bytes are stored in 4 characters, 6 bits per character.
|
|
All characters are always in range from 1 to 64 and are offset by a
|
|
space (octal 40) to make the characters printing.
|
|
Character
|
|
64 represents a count of zero.
|
|
The last line may be shorter than the normal 45 bytes.
|
|
If the size is not a multiple of 3, this fact can be determined
|
|
by the value of the count on the last line.
|
|
Extra null characters will be included to make the character count a multiple
|
|
of 4.
|
|
The body is terminated by a line with a count of zero.
|
|
This line consists of one
|
|
.Tn ASCII
|
|
backquote (octal 140) character.
|
|
.Pp
|
|
The trailer line consists of
|
|
.Dq end
|
|
on a line by itself.
|
|
.Sh SEE ALSO
|
|
.Xr mail 1 ,
|
|
.Xr uucp 1 ,
|
|
.Xr uudecode 1 ,
|
|
.Xr uuencode 1
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
file format appeared in
|
|
.Bx 4.0 .
|
|
.\" It was named uuencode.5 prior to 4.3
|