Commit Graph

3363 Commits

Author SHA1 Message Date
jilles
a7b8e0f9c6 sh: Remove unused function declaration for arith_lex_reset().
Reported by:	Robert Elz
2017-03-18 20:41:07 +00:00
jilles
1f5642d40d sh: Remove unused return value of subevalvar_misc(). 2017-03-18 16:09:30 +00:00
jilles
3bc5005a4c sh: Get rid of global variable argbackq. 2017-03-16 21:53:55 +00:00
jilles
eab9784db4 sh: Fix executing wrong command with ${unsetvar#$(cmdsubst)}$(cmdsubst).
The parsed internal representation of words consists of a byte string with a
list of nodes (commands in command substitution). Each unescaped CTLBACKQ or
CTLBACKQ | CTLQUOTE byte corresponds to an entry in the list.

If param in ${param#%##%%word} is not set, the word is not expanded (in a
deviation of POSIX shared with other ash variants and ksh93). Erroneously,
the pointer in the list of commands (argbackq) was not advanced. This caused
the wrong command to be executed later if the outer word contained another
command substitution.

Example:
  echo "${unsetvar#$(echo a)}$(echo b)"
wrote "a" but should write "b".

MFC after:	1 week
2017-03-10 16:04:00 +00:00
bdrewery
6d09c9ddac Rename some tests to end in _test.
Requested by:	ngie
MFC after:	2 weeks
X-MFC-With:	r314886
2017-03-09 04:20:00 +00:00
bdrewery
8be3ba7682 Remove unneeded -x from tests.
Reported by:	ngie
MFC after:	2 weeks
X-MFC-With:	r314886
2017-03-09 04:19:52 +00:00
bdrewery
0dcf58d1d2 pwait: Add a -t flag to specify a timeout before exiting, and tests.
The exit status will be 124, as the timeout(1) utility uses.

Reviewed by:	jilles
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D9697
2017-03-07 22:16:55 +00:00
rgrimes
76d0a7b226 Convert absolute links to relative links.
Style.Makefile(9) has been ignored to produce minimal diffs.

Approved by:	grehan (mentor)
MFC after:	1 week
2017-03-07 05:10:38 +00:00
cem
aa80f7cdec ps(1): Fix -w + UNLIMITED handling
A follow-up fix for r314685.

Because the -w flag is parsed after ps(1) infers termwidth from COLUMNS and
stdout, and UNLIMITED happens to be the zero value, the single -w flag in
combination with a non-terminal stdout or COLUMNS=0 could result in output
truncated at 131 characters.  (Despite the output being unlimited without
-w.)

Obviously, adding more -w shouldn't truncate output lines.

The committed patch is from bdrewery@, and I've reviewed and tested it.

Submitted by:	bdrewery@
Reported by:	bdrewery@
Sponsored by:	Dell EMC Isilon
2017-03-07 04:51:35 +00:00
bdrewery
908622a563 Don't kill pid -1 on overflow from strtol(3).
Store the result in a proper long and then compare to the proper pid_t
for overflow, so that no MD assumptions are made.

Reviewed by:	jilles
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D9887
2017-03-05 21:56:04 +00:00
jilles
3c6e58db4a sh: Fix crash if a -T trap is taken during command substitution.
Code like  t=$(stat -f %m "$file")  segfaulted if -T was active and a trap
was taken while the shell was waiting for the child process to finish.

What happened was that the dotrap() call in waitforjob() was hit. This
re-entered command execution (including expand.c) at a point not expected by
expbackq(), and global state (unallocated stack string and argbackq) was
corrupted.

To fix this, change expbackq() to prepare for command execution to be
re-entered.

Reported by:	bdrewery
MFC after:	1 week
2017-03-04 22:58:34 +00:00
cem
703037eb08 ps(1): Only detect terminal width if stdout is a tty
If stdout isn't a tty, use unlimited width output rather than truncating to
79 characters.  This is helpful for shell scripts or e.g., 'ps | grep foo'.

This hardcoded width has some history: In The Beginning of History[0], the
width of ps was hardcoded as 80 bytes.  In 1985, Bloom@ added detection
using TIOCGWINSZ on stdin.[1]  In 1986, Kirk merged a change to check
stdout's window size instead.  In 1990, the fallback checks to stderr and
stdin's TIOCGWINSZ were added by Marc@, with the commit message "new
version."[2]

OS X Darwin has a very similar modification to ps(1), which simply sets
UNLIMITED for all non-tty outputs.[3]  I've chosen to respect COLUMNS
instead of behaving identically to Darwin here, but I don't feel strongly
about that.  We could match OS X for parity if that is desired.

[0]: https://svnweb.freebsd.org/csrg/bin/ps/ps.c?annotate=1065
[1]: https://svnweb.freebsd.org/csrg/bin/ps/ps.c?r1=18105&r2=18106
[2]:
https://svnweb.freebsd.org/csrg/bin/ps/ps.c?r1=40675&r2=40674&pathrev=40675
[3]:
https://opensource.apple.com/source/adv_cmds/adv_cmds-168/ps/ps.c.auto.html

PR:		217159
Reported by:	Deepak Nagaraj <n.deepak at gmail.com>
2017-03-04 22:38:10 +00:00
ngie
c52aabb8ad bin: normalize paths using SRCTOP-relative paths or :H when possible
This simplifies make logic/output

MFC after:	1 month
Sponsored by:	Dell EMC Isilon
2017-03-04 11:31:08 +00:00
jilles
755a4b9eb4 sh: Add some already working tests that exercise new code paths. 2017-03-03 22:46:20 +00:00
imp
7e6cabd06e Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
kib
3ffa9b6db7 Use uintmax_t to print st_nlink.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-02-16 06:32:39 +00:00
bapt
ad96dc2944 Remove empty Li
Reported by:	make manlint
MFC after:	2 days
2017-02-11 23:09:50 +00:00
bapt
baeec4767c Remove space at and of line
Reported by:	make manlint
MFC after:	2 days
2017-02-11 23:06:53 +00:00
allanjude
9eb72f4508 Remove bdes(1)
The use of DES for anything is discouraged, especially with a static IV of 0

If you still need bdes(1) to decrypt Kirk's video lectures, see
security/bdes in ports.

This commit brought to you by the FOSDEM DevSummit and the
"remove unneeded dependancies on openssl in base" working group

Reviewed by:	bapt, brnrd
Relnotes:	yes
Sponsored by:	FOSDEM DevSummit
Differential Revision:	https://reviews.freebsd.org/D9424
2017-02-06 08:27:19 +00:00
bapt
bd0b52fc1f Revert crap accidentally committed 2017-01-28 16:31:23 +00:00
bapt
02ac05d572 Revert r312923 a better approach will be taken later 2017-01-28 16:30:14 +00:00
cem
a5f316cfc8 chmod: Add SIGINFO handler
PR:		191884
Submitted by:	Dan McGregor <dan.mcgregor at usask.ca>
Reviewed by:	mjg@ (earlier version)
2017-01-08 06:50:53 +00:00
kib
7c67dd5f60 Use type-independent formats for printing nlink_t and ino_t.
Extracted from:	ino64 work by gleb, mckusick
Discussed with:	mckusick
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-01-06 16:59:33 +00:00
pfg
421f11cda0 pax(1): Fix a bug with archives smaller than 512 bytes.
The problem here is that the archive is too short (< 512 bytes). The
buffer routines, try to read at least 512 bytes, even when we try to
determine what format file we have, which is wrong.

Obtained from:	NetBSD (CVS rev 1.26)
MFC after:	5 days
2016-12-21 15:26:59 +00:00
asomers
cf7feea70c Fix ls_tests:o_flag with ZFS TMPDIR
Unlike UFS or TMPFS, ZFS sets uarch automatically whenever a file is
updated. The test must explicitly clear uarch to be portable across
filesystems. Also, it doesn't need to run as root.

PR:		215179
MFC after:	4 weeks
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D8741
2016-12-15 16:13:52 +00:00
brooks
7e31d543cd Use nmount(2) rather than the obsolete mount(2).
Reviewed by:	cem
MFC after:	1 week
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D8513
2016-12-14 21:30:44 +00:00
pfg
b9fbd2df3a ed(1): drop redundant parenthesis.
These were Left-over from the cleanup in r309936.
2016-12-14 21:14:43 +00:00
brooks
879090ac47 Mount filesystems without executable permissions since they should never
be used.

Reviewed by:	cem
MFC after:	1 week
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D8513
2016-12-14 21:13:10 +00:00
brooks
158183bcd9 Put the undocumented df feature of mounting filesystems from device nodes
under an ifdef.  Leave enabled.

Reviewed by:	cem
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D8513
2016-12-14 21:11:42 +00:00
pfg
b7278ffafc ed(1): Simplify some checks.
The return type for both fread(3) and fwrite(3) cannot be negative, this
renders some checks invalid and variable 'ct' unnecessary.
Also bump 'len' to size_t to avoid signed/unsigned comparison warnings.
2016-12-12 20:25:59 +00:00
robak
0c7183eeba Fix regression when stdin/out/err fds are are overridden by shell.
Submitted by:	Pawel Biernacki <pawel.biernacki@gmail.com>
Reported by:	ngie
Approved by:	ngie
Sponsored by:	Mysterious Code Ltd.
Differential Revision:	https://reviews.freebsd.org/D8543
2016-12-12 18:56:40 +00:00
pfg
b4359fc5ce ed(1): Prevent possible overflows during allocation.
Make sure the parameters used for malloc(3) can hold size_t sizes.
This should help ed(1) handle bigger data in the future.

MFC after:	2 weeks
2016-12-12 03:46:40 +00:00
robak
31aeb5905c Capsicum support for dd(1)
Adds Capsicum sandboxing to dd utility.

Submitted by:	Pawel Biernacki <pawel.biernacki@gmail.com>
Reviewed by:	allanjude, emaste, oshogbo
Approved by:	oshogbo
Sponsored by:	Mysterious Code Ltd.
Differential Revision:	https://reviews.freebsd.org/D8543
2016-12-09 14:51:05 +00:00
vangyzen
4b13e96127 Export the whole thread name in kinfo_proc
kinfo_proc::ki_tdname is three characters shorter than
thread::td_name.  Add a ki_moretdname field for these three
extra characters.  Add the new field to kinfo_proc32, as well.
Update all in-tree consumers to read the new field and assemble
the full name, except for lldb's HostThreadFreeBSD.cpp, which
I will handle separately.  Bump __FreeBSD_version.

Reviewed by:	kib
MFC after:	1 week
Relnotes:	yes
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D8722
2016-12-07 15:04:22 +00:00
delphij
79715bae4e style(9).
MFC after:	2 weeks
2016-11-28 07:21:09 +00:00
delphij
a2c097d458 Plug a potential memory leak.
MFC after:	2 weeks
2016-11-28 07:19:45 +00:00
adrian
22900ae0b6 [dd] Revert the capsicum bits for now until it gets fixed.
dd is a bootstrap tool and that header isn't installed as part of the
bootstrap environment for previous releases (eg freebsd-10.)

We'll figure it out in post and then re-commit it.
2016-11-19 18:19:21 +00:00
br
715f6d462d Restore dd changes included accidentally in r308857. 2016-11-19 17:51:02 +00:00
br
9e34ac6e8b Bring in support for Ingenic XBurst JZ4780 and
X1000 systems on chips.

Imgtec CI20 and Ingenic CANNA boards supported.

Submitted by:	Alexander Kabaev <kan@FreeBSD.org>
Reviewed by:	Ruslan Bukin <br@FreeBSD.org>
Sponsored by:	DARPA, AFRL
2016-11-19 17:46:18 +00:00
robak
e3ce12a51e Capsicum support for dd(1)
Adds Capsicum sandboxing to dd utility.

Submitted by:	Pawel Biernacki <pawel.biernacki@gmail.com>
Reviewed by:	allanjude, emaste, oshogbo
Approved by:	oshogbo
Sponsored by:	Mysterious Code Ltd.
Differential Revision:	https://reviews.freebsd.org/D8543
2016-11-18 21:09:57 +00:00
bdrewery
fa5e66f74b DIRDEPS_BUILD: Update dependencies.
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
2016-11-13 00:11:30 +00:00
araujo
77e0cef532 Fix missing '-' for the flags -s and -d on both manpage and usage.
Reported by:	garga, bde
2016-11-09 04:42:09 +00:00
araujo
6c28353744 Add -d flag that prints domain only.
PR:		212875
Submitted by:	Ben RUBSON <ben.rubson@gmail.com>
Reviewed by:	pi
2016-11-08 11:36:33 +00:00
cem
998defe194 Capsicumize some trivial stdio programs
Trivially capsicumize some simple programs that just interact with
stdio.  This list of programs uses 'pledge("stdio")' in OpenBSD.

No objection from:	allanjude, emaste, oshogbo
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D8307
2016-11-08 05:31:01 +00:00
des
31f964de0e Use what(1) instead of strings(1). It's simpler and always available.
PR:		213665
Submitted by:	Pawel Worach <pawel.worach@gmail.com>
MFC after:	1 week
2016-11-04 17:02:42 +00:00
jilles
2cc3e8939f sh: Add simple test for 'set -C' (noclobber).
To ensure fast test runs, race conditions are not tested.
2016-11-02 22:33:37 +00:00
br
d7d4326b41 Increase timeouts so tests have more chances to succeed
on MIPS64EB in QEMU.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-10-19 12:23:02 +00:00
br
4de7693a78 Increase timeout so low-end platforms have a chance to complete test
procedures.

This fixes operation in QEMU/MIPS64.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-10-17 10:21:53 +00:00
jilles
71c26f702a sh: Do not import IFS's value from the environment.
Per Austin group issue #884, always set IFS to $' \t\n'. As before, IFS will
be exported iff it was in the environment.

Most shells (e.g. bash, ksh93 and mksh) already did this. This change
improves predictability, in that scripts can simply rely on the default
value.

However, the effect on security is little, since applications should not be
calling the shell with attacker-controlled environment variable names in the
first place and other security-sensitive variables such as PATH should be
and are imported by the shell.

When using a new sh with an old (before 10.2) libc wordexp(), IFS is no
longer passed on. Otherwise, wordexp() continues to pass along IFS from the
environment per its documentation.

Discussed with:	pfg
Relnotes:	yes
2016-10-08 13:40:12 +00:00
sevan
66d7c8860d Add history section for test(1)
http://minnie.tuhs.org/cgi-bin/utree.pl?file=V7/usr/src/cmd/test.c

PR:		211789
Approved by:	bcr (mentor)
MFC after:	5 days
Differential Revision:	https://reviews.freebsd.org/D8104
2016-10-05 19:47:02 +00:00