Trailing whitespace removal over entire tree

This commit is contained in:
Denis Vlasenko
2007-01-11 17:20:00 +00:00
parent 3821fb13ea
commit f7996f3b70
48 changed files with 306 additions and 306 deletions

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@@ -82,7 +82,7 @@ have additions to this FAQ document, we would love to add them,
to determine which applet to run, as shown above.
</p>
<p>
BusyBox also has a feature called the
BusyBox also has a feature called the
<a name="standalone_shell">"standalone shell"</a>, where the busybox
shell runs any built-in applets before checking the command path. This
feature is also enabled by "make allyesconfig", and to try it out run
@@ -261,7 +261,7 @@ within each applet. More build coverage testing.</p></li>
<hr />
<p>
<h2><a name="external">where can i find other small utilities since busybox
<h2><a name="external">where can i find other small utilities since busybox
does not include the features i want?</a></h2>
<p>
we maintain such a <a href="tinyutils.html">list</a> on this site!
@@ -941,7 +941,7 @@ text console scrolling...)</p>
<p>So will data always be read from the far end of a pipe at the
same chunk sizes it was written in? Nope. Don't rely on that. For one
counterexample, see <a href="http://www.faqs.org/rfcs/rfc896.html">rfc 896
counterexample, see <a href="http://www.faqs.org/rfcs/rfc896.html">rfc 896
for Nagle's algorithm</a>, which waits a fraction of a second or so before
sending out small amounts of data through a TCP/IP connection in case more
data comes in that can be merged into the same packet. (In case you were
@@ -1089,7 +1089,7 @@ aaronl :Aaron Lehmann
beppu :John Beppu
dwhedon :David Whedon
erik :Erik Andersen
gfeldman :Gennady Feldman
gfeldman :Gennady Feldman
jimg :Jim Gleason
kraai :Matt Kraai
markw :Mark Whitley

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@@ -28,7 +28,7 @@
<li>grep: added -r, fixed -h
<li>watch: make it exec child like standard one does (was totally
incompatible)
<li>tar: fix limitations which were preventing bbox tar usage
<li>tar: fix limitations which were preventing bbox tar usage
on big directories: long names and linknames, pax headers
(Linux kernel tarballs have that). Fixed a number of obscure bugs.
Raised max file limit (now 64Gb). Security fixes (/../ attacks).

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@@ -40,7 +40,7 @@ scripts using <code>Control-C</code>. Or have interactive applications
that don't behave right when sending SIGINT. Examples are emacs'es
that die on Control-g or shellscript statements that sometimes are
executed and sometimes not, apparently not determined by the user's
intention.
intention.
</td></tr><tr><th valign=top align=left>Required knowledge: </th>
@@ -101,7 +101,7 @@ just exit.
<p>Now imagine the user hits C-c while a shellscript is executing its
first program. The following programs receive SIGINT: program1 and
also the shell executing the script. program1 exits.
also the shell executing the script. program1 exits.
<p>But what should the shell do? If we say that it is only the
innermost's programs business to react on SIGINT, the shell will do
@@ -351,7 +351,7 @@ that do not properly communicate the required information up to the
calling program.
<p>Unless a program messes with signal handling, the system does this
automatically.
automatically.
<p>There are programs that want to exit on SIGINT, but they don't let
the system do the automatic exit, because they want to do some
@@ -425,7 +425,7 @@ Notes:
special numeric value. People often assume this since the manuals for
shells often list some return value for exactly this. But this is just
a convention for your shell script. It does not work from one UNIX API
program to another.
program to another.
<P>All that happens is that the shell sets the "$?" variable to a
special numeric value for the convenience of your script, because your
@@ -571,7 +571,7 @@ comments the scripts echo.
<tr valign=top align=left>
<td>IUE</td>
<td>The shell executing a script exits immediately if it receives
SIGINT.</td>
SIGINT.</td>
<td>4.4BSD ash (ash), NetBSD, FreeBSD prior to 3.0/22.8</td>
<td>The editor session is lost and subsequent commands are not
executed.</td>
@@ -605,7 +605,7 @@ will further commands from the script be executed. </td>
signal (either it had the default handler for SIGINT or it killed
itself). </td>
<td>bash (Linux /bin/sh), most commercial /bin/sh, FreeBSD /bin/sh
from 3.0/2.2.8.</td>
from 3.0/2.2.8.</td>
<td>The editor continues as normal and subsequent commands are
executed. </td>
<td>The editor continues as normal and subsequent commands are
@@ -615,7 +615,7 @@ child exits, but only if the child exited with signal status. If
the child did a normal exit (even if it received SIGINT, but catches
it), the script will continue. </td>
<td>The child must be implemented right, or the user will not be able
to break shell scripts reliably.</td>
to break shell scripts reliably.</td>
</tr>
</table>

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@@ -4,197 +4,197 @@ for everything (filename, uid, filesize etc) which can overflow.
pax Header Block
The pax header block shall be identical to the ustar header block
described in ustar Interchange Format, except that two additional
The pax header block shall be identical to the ustar header block
described in ustar Interchange Format, except that two additional
typeflag values are defined:
x
Represents extended header records for the following file in
Represents extended header records for the following file in
the archive (which shall have its own ustar header block).
g
Represents global extended header records for the following
files in the archive. Each value shall affect all subsequent files
that do not override that value in their own extended header
record and until another global extended header record is reached
that provides another value for the same field. The typeflag g
global headers should not be used with interchange media that
Represents global extended header records for the following
files in the archive. Each value shall affect all subsequent files
that do not override that value in their own extended header
record and until another global extended header record is reached
that provides another value for the same field. The typeflag g
global headers should not be used with interchange media that
could suffer partial data loss in transporting the archive.
For both of these types, the size field shall be the size of the
extended header records in octets. The other fields in the header
block are not meaningful to this version of the pax utility.
However, if this archive is read by a pax utility conforming to
the ISO POSIX-2:1993 standard, the header block fields are used to
create a regular file that contains the extended header records as
data. Therefore, header block field values should be selected to
For both of these types, the size field shall be the size of the
extended header records in octets. The other fields in the header
block are not meaningful to this version of the pax utility.
However, if this archive is read by a pax utility conforming to
the ISO POSIX-2:1993 standard, the header block fields are used to
create a regular file that contains the extended header records as
data. Therefore, header block field values should be selected to
provide reasonable file access to this regular file.
A further difference from the ustar header block is that data
blocks for files of typeflag 1 (the digit one) (hard link) may be
included, which means that the size field may be greater than
A further difference from the ustar header block is that data
blocks for files of typeflag 1 (the digit one) (hard link) may be
included, which means that the size field may be greater than
zero.
pax Extended Header
An extended header shall consist of one or more records, each
An extended header shall consist of one or more records, each
constructed as follows:
"%d %s=%s\n", <length>, <keyword>, <value>
The <length> field shall be the decimal length of the extended
header record in octets, including length string itself and the
The <length> field shall be the decimal length of the extended
header record in octets, including length string itself and the
trailing <newline>.
[skip]
atime
The file access time for the following file(s), equivalent to
the value of the st_atime member of the stat structure for a file,
as described by the stat() function. The access time shall be
restored if the process has the appropriate privilege required to
do so. The format of the <value> shall be as described in pax
The file access time for the following file(s), equivalent to
the value of the st_atime member of the stat structure for a file,
as described by the stat() function. The access time shall be
restored if the process has the appropriate privilege required to
do so. The format of the <value> shall be as described in pax
Extended Header File Times.
charset
The name of the character set used to encode the data in the
The name of the character set used to encode the data in the
following file(s).
The encoding is included in an extended header for information
only; when pax is used as described in IEEE Std 1003.1-2001, it
shall not translate the file data into any other encoding. The
The encoding is included in an extended header for information
only; when pax is used as described in IEEE Std 1003.1-2001, it
shall not translate the file data into any other encoding. The
BINARY entry indicates unencoded binary data.
When used in write or copy mode, it is implementation-defined
When used in write or copy mode, it is implementation-defined
whether pax includes a charset extended header record for a file.
comment
A series of characters used as a comment. All characters in
A series of characters used as a comment. All characters in
the <value> field shall be ignored by pax.
gid
The group ID of the group that owns the file, expressed as a
decimal number using digits from the ISO/IEC 646:1991 standard.
This record shall override the gid field in the following header
block(s). When used in write or copy mode, pax shall include a gid
extended header record for each file whose group ID is greater
The group ID of the group that owns the file, expressed as a
decimal number using digits from the ISO/IEC 646:1991 standard.
This record shall override the gid field in the following header
block(s). When used in write or copy mode, pax shall include a gid
extended header record for each file whose group ID is greater
than 2097151 (octal 7777777).
gname
The group of the file(s), formatted as a group name in the
group database. This record shall override the gid and gname
fields in the following header block(s), and any gid extended
header record. When used in read, copy, or list mode, pax shall
translate the name from the UTF-8 encoding in the header record to
the character set appropriate for the group database on the
receiving system. If any of the UTF-8 characters cannot be
translated, and if the -o invalid= UTF-8 option is not specified,
the results are implementation-defined. When used in write or copy
mode, pax shall include a gname extended header record for each
file whose group name cannot be represented entirely with the
The group of the file(s), formatted as a group name in the
group database. This record shall override the gid and gname
fields in the following header block(s), and any gid extended
header record. When used in read, copy, or list mode, pax shall
translate the name from the UTF-8 encoding in the header record to
the character set appropriate for the group database on the
receiving system. If any of the UTF-8 characters cannot be
translated, and if the -o invalid= UTF-8 option is not specified,
the results are implementation-defined. When used in write or copy
mode, pax shall include a gname extended header record for each
file whose group name cannot be represented entirely with the
letters and digits of the portable character set.
linkpath
The pathname of a link being created to another file, of any
type, previously archived. This record shall override the linkname
field in the following ustar header block(s). The following ustar
header block shall determine the type of link created. If typeflag
of the following header block is 1, it shall be a hard link. If
typeflag is 2, it shall be a symbolic link and the linkpath value
shall be the contents of the symbolic link. The pax utility shall
translate the name of the link (contents of the symbolic link)
from the UTF-8 encoding to the character set appropriate for the
local file system. When used in write or copy mode, pax shall
include a linkpath extended header record for each link whose
pathname cannot be represented entirely with the members of the
The pathname of a link being created to another file, of any
type, previously archived. This record shall override the linkname
field in the following ustar header block(s). The following ustar
header block shall determine the type of link created. If typeflag
of the following header block is 1, it shall be a hard link. If
typeflag is 2, it shall be a symbolic link and the linkpath value
shall be the contents of the symbolic link. The pax utility shall
translate the name of the link (contents of the symbolic link)
from the UTF-8 encoding to the character set appropriate for the
local file system. When used in write or copy mode, pax shall
include a linkpath extended header record for each link whose
pathname cannot be represented entirely with the members of the
portable character set other than NUL.
mtime
The file modification time of the following file(s),
equivalent to the value of the st_mtime member of the stat
structure for a file, as described in the stat() function. This
record shall override the mtime field in the following header
block(s). The modification time shall be restored if the process
has the appropriate privilege required to do so. The format of the
The file modification time of the following file(s),
equivalent to the value of the st_mtime member of the stat
structure for a file, as described in the stat() function. This
record shall override the mtime field in the following header
block(s). The modification time shall be restored if the process
has the appropriate privilege required to do so. The format of the
<value> shall be as described in pax Extended Header File Times.
path
The pathname of the following file(s). This record shall
override the name and prefix fields in the following header
block(s). The pax utility shall translate the pathname of the file
from the UTF-8 encoding to the character set appropriate for the
The pathname of the following file(s). This record shall
override the name and prefix fields in the following header
block(s). The pax utility shall translate the pathname of the file
from the UTF-8 encoding to the character set appropriate for the
local file system.
When used in write or copy mode, pax shall include a path
extended header record for each file whose pathname cannot be
represented entirely with the members of the portable character
When used in write or copy mode, pax shall include a path
extended header record for each file whose pathname cannot be
represented entirely with the members of the portable character
set other than NUL.
realtime.any
The keywords prefixed by "realtime." are reserved for future
The keywords prefixed by "realtime." are reserved for future
standardization.
security.any
The keywords prefixed by "security." are reserved for future
The keywords prefixed by "security." are reserved for future
standardization.
size
The size of the file in octets, expressed as a decimal number
using digits from the ISO/IEC 646:1991 standard. This record shall
override the size field in the following header block(s). When
used in write or copy mode, pax shall include a size extended
header record for each file with a size value greater than
The size of the file in octets, expressed as a decimal number
using digits from the ISO/IEC 646:1991 standard. This record shall
override the size field in the following header block(s). When
used in write or copy mode, pax shall include a size extended
header record for each file with a size value greater than
8589934591 (octal 77777777777).
uid
The user ID of the file owner, expressed as a decimal number
using digits from the ISO/IEC 646:1991 standard. This record shall
override the uid field in the following header block(s). When used
in write or copy mode, pax shall include a uid extended header
record for each file whose owner ID is greater than 2097151 (octal
The user ID of the file owner, expressed as a decimal number
using digits from the ISO/IEC 646:1991 standard. This record shall
override the uid field in the following header block(s). When used
in write or copy mode, pax shall include a uid extended header
record for each file whose owner ID is greater than 2097151 (octal
7777777).
uname
The owner of the following file(s), formatted as a user name
in the user database. This record shall override the uid and uname
fields in the following header block(s), and any uid extended
header record. When used in read, copy, or list mode, pax shall
translate the name from the UTF-8 encoding in the header record to
the character set appropriate for the user database on the
receiving system. If any of the UTF-8 characters cannot be
translated, and if the -o invalid= UTF-8 option is not specified,
the results are implementation-defined. When used in write or copy
mode, pax shall include a uname extended header record for each
file whose user name cannot be represented entirely with the
The owner of the following file(s), formatted as a user name
in the user database. This record shall override the uid and uname
fields in the following header block(s), and any uid extended
header record. When used in read, copy, or list mode, pax shall
translate the name from the UTF-8 encoding in the header record to
the character set appropriate for the user database on the
receiving system. If any of the UTF-8 characters cannot be
translated, and if the -o invalid= UTF-8 option is not specified,
the results are implementation-defined. When used in write or copy
mode, pax shall include a uname extended header record for each
file whose user name cannot be represented entirely with the
letters and digits of the portable character set.
If the <value> field is zero length, it shall delete any header
block field, previously entered extended header value, or global
If the <value> field is zero length, it shall delete any header
block field, previously entered extended header value, or global
extended header value of the same name.
If a keyword in an extended header record (or in a -o
option-argument) overrides or deletes a corresponding field in the
ustar header block, pax shall ignore the contents of that header
If a keyword in an extended header record (or in a -o
option-argument) overrides or deletes a corresponding field in the
ustar header block, pax shall ignore the contents of that header
block field.
Unlike the ustar header block fields, NULs shall not delimit
<value>s; all characters within the <value> field shall be
considered data for the field. None of the length limitations of
the ustar header block fields in ustar Header Block shall apply to
Unlike the ustar header block fields, NULs shall not delimit
<value>s; all characters within the <value> field shall be
considered data for the field. None of the length limitations of
the ustar header block fields in ustar Header Block shall apply to
the extended header records.
pax Extended Header File Times
Time records shall be formatted as a decimal representation of the
time in seconds since the Epoch. If a period ( '.' ) decimal point
character is present, the digits to the right of the point shall
represent the units of a subsecond timing granularity. In read or
copy mode, the pax utility shall truncate the time of a file to
the greatest value that is not greater than the input header
file time. In write or copy mode, the pax utility shall output a
time exactly if it can be represented exactly as a decimal number,
and otherwise shall generate only enough digits so that the same
time shall be recovered if the file is extracted on a system whose
Time records shall be formatted as a decimal representation of the
time in seconds since the Epoch. If a period ( '.' ) decimal point
character is present, the digits to the right of the point shall
represent the units of a subsecond timing granularity. In read or
copy mode, the pax utility shall truncate the time of a file to
the greatest value that is not greater than the input header
file time. In write or copy mode, the pax utility shall output a
time exactly if it can be represented exactly as a decimal number,
and otherwise shall generate only enough digits so that the same
time shall be recovered if the file is extracted on a system whose
underlying implementation supports the same time granularity.
Example from Linux kernel archive tarball: