| Commit message (Collapse) | Author | Age | Files | Lines |
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When the '-n' option of the 'read' builtin is used we need to account
for backspaces: increase 'nchars' when backspace removes a character
from the buffer.
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Use ReadDirectoryChangesW to implement inotifyd for WIN32.
There are limitations:
- It's only possible to watch directories, not files.
- The notification doesn't distinguish between different changes to
file state. All changes other than creation, deletion and renaming
are reported as 'c'.
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Change the meaning of the BB_SKIP_ANSI_EMULATION variable:
- if it isn't set or if it has any value other than 1 or 2, use
ANSI emulation;
- if it's set to 1, always emit ANSI escape codes;
- if it's set to 2, attempt to enable virtual terminal processing in
the current console. If that works emit ANSI escape codes, if not
revert to ANSI emulation.
On all platforms I've tested (Windows 10, Windows 8.1, ReactOS 0.4.13,
plus ConEmu) BB_SKIP_ANSI_EMULATION=2 does the right thing.
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Update the skip status on the first call to skip_ansi_emulation()
and whenever the BB_SKIP_ANSI_EMULATION variable changes.
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Allow use of MD5-encrypted passwords in HTTP authentication. However:
- Since it adds 4K to the size of the binary it isn't enabled by
default. Unencrypted password are allowed in the default build.
- The use of '*' wildcards for user/password in the configuration file
isn't allowed.
- Enabling this feature requires enabling 'Use internal crypt functions'
(USE_BB_CRYPT) in the 'Login/Password Management Utilities' section.
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Filesystems on Microsoft Windows are usually case-insensitive. This
allows clients to circumvent security by requesting URLs with changes
in case that aren't anticipated by the server:
http://example.com/Httpd.conf vs http://example.com/httpd.conf
http://example.com/SeCuReDir vs http://example.com/SecureDir
Use case-insensitive comparisons to avoid this.
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In the WIN32 port inetd mode is used in the same way as in NOMMU
to process each new connection. However, it shares a problem with
NOMMU mode upstream: the child process changes directory unnecessarily.
Thus, 'httpd -fvvvp 8080 -h www' fails with errors:
httpd: can't change directory to 'www': No such file or directory
Fix this in the WIN32 port by not changing directory in inetd mode.
The behaviour of inetd mode is now quite unlike upstream so the option
have been changed to '-I' and removed from the help message.
Since the -e/-d options appear in the help message unconditionally
FEATURE_HTTPD_ENCODE_URL_STR has been enabled.
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Port the time applet to WIN32. This requires the implemntation of
a replacement for wait3(2).
Only elapsed, user and system times are supported, not the memory
and i/o statistics reported by GNU time.
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Enable the httpd applet in WIN32 default configurations. Some
additional features have also been enabled:
'Ranges:' header
Basic HTTP authentication
Custom error pages
GZIP content encoding
Common Gateway Interface (CGI) and related features are not enabled.
Basic HTTP authentication requires bb_simplify_abs_path_inplace().
This function shouldn't be used for WIN32 paths. In this case it's
processing a URL which is OK.
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Use mingw_spawn_detach() to daemonize the server. Pass the open
socket to the child process on the command line.
Omit handling of SIGHUP and SIGALRM. Timeouts are handled using
poll(2) instead of alarm(2).
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Implement getpeername(2).
Add mingw_spawn_detach() to allow the spawned process to detach from
the console.
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Process the '--busybox' flag before checking argv[0].
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Since commit 1ff7002b1 (xargs: fix handling of quoted arguments, closes
11441) the -n option hasn't worked properly:
$ echo 1 2 3 | xargs -n 1 echo
1
2
3
$
Because state is now remembered between calls to process_stdin() it's
necessary to update the state before any premature return.
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Tab-completion of 'c:file' paths was leaking memory and incorrectly
included BusyBox applets and shell built-ins.
Fix handling of 'c:file' paths used as arguments to spawn functions.
Otherwise things like 'timeout 5 c:busybox sleep 99' don't work.
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The merge from upstream (commit d89ced75b, 2018-09-10) completely
broke timeout. Apply a belated fix.
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When the seek=N argument is used mark the file as sparse and set
the range that is sparse.
See https://stackoverflow.com/questions/4011508/how-to-create-a-sparse-file-on-ntfs
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Use GetCompressedFileSize to obtain the actual number of blocks
for compressed or sparse files. Use this to return a more accurate
value for st_blocks.
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bb_basename() didn't properly handle paths of the form 'c:file'.
Attempting to run 'c:busybox' resulted in 'c:busybox: applet not found'.
The shell had a similar problem: trying to run 'c:busybox' reported
'sh: c:busybox: not found'.
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Upstream commit:
Date: Wed, 12 Sep 2018 14:27:16 +0800
expand: Fix multiple issues with EXP_DISCARD in evalvar
The commit 3cd538634f71538370f5af239f342aec48b7470b broke parameter
expansion in multiple ways because the EXP_DISCARD flag wasn't set
or tested for various cases:
$ src/dash -c 'var=; echo ${var:+nonempty}'
nonempty
$ src/dash -u -c 'unset foo bar; echo ${foo+${bar}}'
dash: 1: bar: parameter not set
$ src/dash -c 'foo=bar; echo ${foo=BUG}; echo $foo'
barBUG
bar
$
This patch fixes them by introducing a new discard variable that
tracks whether the extra word should be discarded or not when it
is parsed.
Reported-by: Martijn Dekker <martijn@inlv.org>
Fixes: 3cd538634f71 ("expand: Do not reprocess data when...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reported-by: Martijn Dekker <martijn@inlv.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream patch:
Date: Wed, 30 May 2018 02:06:03 +0800
expand: Do not reprocess data when expanding words
Currently various paths will reprocess data when performing word
expansion. For example, expari will skip backwards looking for
the start of the arithmetic expansion, while evalvar will skip
unexpanded words manually.
This is cumbersome and error-prone. This patch fixes this by
making word expansions proceed in a linear fashion. This means
changing argstr and the various expansion functions such as expari
and subevalvar to return the next character to be expanded.
This is inspired by similar code from FreeBSD. However, we take
things one step further and completely remove the manual word
skipping in evalvar. This is accomplished by introducing a new
EXP_DISCARD flag that tells argstr to only parse and not produce
any actual expansions.
Incidentally, argstr will now always NUL-terminate the expansion
unless the EXP_WORD flag is set. This is because all but one
caller of argstr wants the result to be NUL-termianted.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Also includes two one-line follow-up fixes:
expand: Eat closing brace for length parameter
if (subtype == VSLENGTH) {
+ p++;
if (flag & EXP_DISCARD)
expand: Fix double-decrement in argstr
- newloc = expdest - (char *)stackblock() - end;
+ newloc = q - (char *)stackblock() - end;
and changes in code for bash substring extensions.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Following recent work on evalcommand() a TRACE statement to report
the status of a forked command was left in the wrong place.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Sun, 11 Nov 2007 15:27:00 +0800
Expand here-documents in the current shell environment
Previously we always expanded here-documents in a subshell. This is
contrary to the POSIX specification and how other shells behave. What's
more this slows down many expansions due to the extra fork (however, it
must be said that it is possible for it speed up certain expansions by
running it simultaneously with the command on two CPUs).
This patch move the expansion into the current shell environment.
Test case:
unset a
cat <<- EOF > /dev/null
${a=NOT}
EOF
echo ${a}BAD
Old result:
BAD
New result:
NOTBAD
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Mon, 19 Nov 2018 18:43:58 +0800
parser: Do not push token back before parseheredoc
When we read the first token in list() we use peektoken instead
of readtoken as the following code needs to use the same token
again. However, this is wrong when we're in a here-document as
it will clobber the saved token without resetting the tokpushback
flag.
This patch fixes it by doing the tokpushback after parseheredoc
and setting lasttoken again if parseheredoc was called.
Reported-by: Ron Yorston <rmy@frippery.org>
Fixes: 7c245aa8ed33 ("[PARSER] Simplify EOF/newline handling in...")
Fixes: ee5cbe9fd6bc ("[SHELL] Optimize dash -c "command" to avoid a fork")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Fri, 29 Mar 2019 13:49:59 +0800
parser: Fix old-style command substitution here-document crash
... This is caused by the recent change to
save/restore here-docment list around command substitutions. In
doing so we must finish existing here-documents prior to restoring
the old here-document list. This is done for new-style command
substitutions but not for old-style.
This patch fixes it by doing it for both.
Fixes: 51e2d88d6e51 ("parser: Save/restore here-documents in...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
expand_vars_to_list 1026 1082 +56
parse_dollar 810 811 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 57/0) Total: 57 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Fri, 1 Jun 2018 18:25:29 +0800
expand: Ensure result is escaped in cvtnum
The minus sign generated from arithmetic expansion is currently
unquoted which causes anomalies when the result is used in where
the quoting matters.
This patch fixes it by explicitly calling memtodest on the result
in cvtnum.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Thu, 31 May 2018 01:51:48 +0800
memalloc: Avoid looping in growstackto
Currently growstackto will repeatedly call growstackblock until
the requisite size is obtained. This is wasteful. This patch
changes growstackblock to take a minimum size instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
check_and_run_traps 276 278 +2
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
check_and_run_traps 259 276 +17
builtin_exit 42 53 +11
hush_main 1086 1096 +10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 38/0) Total: 38 bytes
Fixes exitcode_trap2.tests.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Fri, 14 Dec 2018 13:52:02 +0800
eval: Only restore exit status on exit/return
We unconditionally restore the saved status in exitreset, which
is incorrect as we only want to do it for exitcmd and returncmd.
This patch fixes the problem by introducing EXEND.
Reported-by: Martijn Dekker <martijn@inlv.org>
Fixes: da30b4b78769 ("[BUILTIN] Exit without arguments in a trap...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Fixes exitcode_trap4.tests.
Upstream commit:
Date: Mon, 6 Oct 2014 21:51:26 +0800
Return without arguments in a trap should use status outside traps
POSIX now requires that return without arguments in a trap should
return the last command status prior to executing traps. This
patch implements this behaviour.
Incidentally this also changes the behaviour of return without
arguments in a loop conditional to use the last exit status in
the body as opposed to the last command in the conditional when
there is one.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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function old new delta
builtin_return 47 67 +20
check_and_run_traps 243 259 +16
run_pipe 1583 1597 +14
hush_main 1076 1086 +10
run_list 1054 1055 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 61/0) Total: 61 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Since commit d81af7216 (ash: eval: Reap zombies after built-in commands
and functions) if the shell is compiled with SH_STANDALONE and SH_NOFORK
enabled nofork applets potentially return the incorrect status.
The status value returned by evalcommand() in this case is obtained from
exitstatus in a call to waitforjob(NULL). This overwrites the status
set for nonfork applets.
If this commit seems familiar it's essentially a reversion of commit
5ccb0e92fa (ash: return exit status of nofork applets). What was correct
in 2016 is wrong in 2020 and vice versa.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Mon, 28 May 2018 00:17:39 +0800
expand: Merge syntax/quotes in memtodest with flags
The function arguments syntax and quotes are both derived from
the expansion flags. As syntax is only used by memtodest we do
not need to maintain it outside of the function at all.
The only place that uses something other than BASESYNTAX or DQSYNTAX
is exptilde. However in that case DQSYNTAX has exactly the same
effect as SQSYNTAX.
This patch merges these two arguments into a single flags. The
macro QUOTES_KEEPNUL has been renamed to EXP_KEEPNUL in order
to keep the namespace separate.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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This brings in dash commit cbb71a8 (eval: Add assignment built-in
support again) which finally makes it possible to sort out local
commit 65189dacb (ash: fix local PATH assignments).
These changes also simplify handling of shellexec and remove the
need for varlist in the forkshell structure.
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Upstream commit:
Date: Thu, 31 May 2018 01:15:34 +0800
eval: Always set localvar_stop
The variable localvar_stop is set iff vlocal is true. gcc doesn't
get this so we get a spurious warning.
This patch fixes this by always calling pushlocalvars with vlocal
and making it only actually do the push if vlocal is non-zero.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Sat, 19 May 2018 02:39:55 +0800
eval: Replace with listsetvar with mklocal/setvareq
This patch replaces listsetvar with mklocal/setvareq. As we now
determine special built-in status prior to variable assignment, we
no longer have to do a second pass listsetvar. Instead we will
call setvareq directly instead of mklocal when necessary.
In order to do this mklocal can now take a flag in order to mark
a variable for export.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Sat, 19 May 2018 02:39:54 +0800
eval: Fail immediately with redirections errors for simple command
Previously, dash would continue to perform variable expansions
even if a redirection error occured. This patch changes it so
that it fails immediately.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream commit:
Date: Sat, 19 May 2018 02:39:52 +0800
eval: Add assignment built-in support again
This patch adds assignment built-in support that used to exist
in dash prior to 0.3.8-15. This is because it will soon be part
of POSIX, and the semantics are now much better defined.
Recognition is done at execution time, so even "command -- export"
or "var=export; command $var" should work.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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hush fails this one
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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got_sigchld and pending_sig serve no purpose on Microsoft Windows.
Saves 64 bytes.
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In dowait() force waitone() to be called at least once. This is
less efficient but is required since on Microsoft Windows got_sigchld
will never be set.
Propagate return status of nofork applets. This fix has also been
accepted upstream.
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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