Commit Graph

927 Commits

Author SHA1 Message Date
Jilles Tjoelker
671a890e58 sh: Make checkend() a real function instead of an emulated nested function.
No functional change is intended, but the generated code is slightly
different.
2014-09-14 16:27:49 +00:00
Jilles Tjoelker
5545fadd84 sh: Add some const keywords. 2014-09-14 15:59:15 +00:00
Jilles Tjoelker
cd60e2c67d sh: Allow enabling job control without a tty in non-interactive mode.
If no tty is available, 'set -m' is still useful to put jobs in their own
process groups.
2014-09-04 21:48:33 +00:00
Jilles Tjoelker
dd6d480a3e sh: Remove two redundant (uintmax_t) casts.
Submitted by:	jmallett
2014-08-20 20:15:43 +00:00
Jilles Tjoelker
ef9e61785a sh: Avoid overflow in atoi() when parsing HISTSIZE.
Side effect: a non-numeric HISTSIZE now results in the default size (100)
instead of 0.
2014-08-17 19:36:56 +00:00
Jilles Tjoelker
d53f7f64f7 sh: Reject integer overflow in number and is_number. 2014-08-17 16:40:29 +00:00
Jilles Tjoelker
1c9c6ea481 sh: Don't hardcode relative paths in the tests stderr files.
These paths have had to be adjusted to changes in the testsuite runner
several times, so modify the tests to remove the need for such adjustment.

A cp in functional_test.sh is now unneeded, but this matters little in
performance.
2014-08-17 14:26:12 +00:00
Jilles Tjoelker
d5b14891eb sh: Mask off shift distance (<< and >>) in arithmetic.
In C, shift distances equal to or larger than the number of bits in the
operand result in undefined behaviour. As part of eliminating undefined
behaviour in arithmetic, mask off the distance like Java and JavaScript
specify and C on x86 usually does.

Assumption: conversion from unsigned to signed retains the two's complement
bits.
Assumption: uintmax_t has no padding bits.
2014-08-15 22:36:41 +00:00
Enji Cooper
12e2df3c36 Convert bin/sh/tests to ATF
The new code uses a "test discovery mechanism" to determine
what tests are available for execution

The test shell can be specified via:

  kyua test -v test_suites.FreeBSD.bin.sh.test_shell=/path/to/test/sh

Sponsored by: EMC / Isilon Storage Division
Approved by: jmmv (mentor)
Reviewed by: jilles (maintainer)
2014-08-13 04:14:50 +00:00
Jilles Tjoelker
4d34663be3 sh: Allow arbitrarily large numbers in break and continue.
The argument is capped to loopnest, so strtol()'s [ERANGE] can be ignored.
2014-07-20 20:29:09 +00:00
Jilles Tjoelker
e61ae4ffc8 sh: Remove prefix() function. Use strncmp() instead. 2014-07-20 12:06:52 +00:00
Jilles Tjoelker
2ef146f14c sh: Deduplicate some code in ulimit builtin. 2014-07-19 14:06:23 +00:00
Brooks Davis
80189b3b09 Replace all uses of libncurses and libtermcap with their wide character
variants.  This allows usable file system images (i.e. those with both a
shell and an editor) to be created with only one copy of the curses library.

Exp-run:	antoine
PR:		189842
Discussed with:	bapt
Sponsored by:	DARPA, AFRL
2014-07-17 18:24:34 +00:00
Jilles Tjoelker
7b9104c0a9 sh: Correctly handle positional parameters beyond INT_MAX on 64-bit systems.
Currently, there can be no more than INT_MAX positional parameters. Make
sure to treat all higher ones as unset to avoid incorrect results and
crashes.

On 64-bit systems, our atoi() takes the low 32 bits of the strtol() and
sign-extends them.

On 32-bit systems, the call to atoi() returned INT_MAX for too high values
and there is not enough address space for so many positional parameters, so
there was no issue.
2014-07-12 21:54:11 +00:00
Jilles Tjoelker
5ddabb8348 sh: Consistently treat ${01} like $1.
Leading zeroes were ignored when checking whether a positional parameter is
set, but not when expanding its value. Ignore leading zeroes in any case.
2014-07-12 10:27:30 +00:00
Jilles Tjoelker
f1058ba09a sh: Add test for ${01} and ${010} that already works.
Although it is probably unwise to use this, POSIX is clear that leading
zeroes are permitted in positional parameters (and do not indicate octal).

Such positional parameters are checked for being unset and/or null
correctly, but their value is incorrectly expanded.
2014-07-08 22:04:44 +00:00
Jilles Tjoelker
725d072732 Don't install locale1.0 if MK_NLS == no.
The test locale1.0 depends on locale support; it is meaningless without a
working LC_MESSAGES.

I added an OptionalObsoleteFiles.inc entry.

PR:		181151
Submitted by:	Garrett Cooper (original version)
MFC after:	1 week
Sponsored by:	EMC / Isilon Storage Division
2014-07-08 21:50:13 +00:00
Jilles Tjoelker
2d70c63720 sh: Fix overflow checking on 'ulimit' operand. 2014-07-05 21:50:59 +00:00
Jilles Tjoelker
b0762e4921 sh: Avoid undefined behaviour shifting negative values left in arithmetic.
With i386 base clang, arith_yacc.o remains unchanged.
2014-06-01 11:25:34 +00:00
Jilles Tjoelker
2ceda70233 sh: Simplify find_command() slightly. 2014-05-31 22:25:45 +00:00
Jilles Tjoelker
c8fb3e69d0 sh: In getopts, unset OPTARG where POSIX says we should. 2014-05-10 19:18:49 +00:00
Jilles Tjoelker
8207fd5f81 sh: Add new tests to the Makefile. 2014-05-10 19:06:36 +00:00
Jilles Tjoelker
6e76445cf7 sh: Don't discard getopts state on unknown option or missing argument.
When getopts finds an invalid option or a missing option-argument, it should
not reset its state and should set OPTIND as normal. This is an old ash bug
that was fixed long ago in dash. Our behaviour now matches most other
shells.
2014-05-10 17:42:21 +00:00
Jilles Tjoelker
8c4e5fc061 sh: Send getopts error messages to stderr, not stdout.
Adjust a testcase for this change.
2014-05-09 13:32:36 +00:00
Jilles Tjoelker
bc7f6652dd sh: Add more necessary INTOFF/INTON. 2014-05-09 13:27:30 +00:00
Jilles Tjoelker
5699ef2588 sh: Add some tests for normal use of getopts. 2014-05-07 21:45:25 +00:00
Warner Losh
c6063d0da8 Use src.opts.mk in preference to bsd.own.mk except where we need stuff
from the latter.
2014-05-06 04:22:01 +00:00
Jilles Tjoelker
d73dba75d6 sh: Fix memory leak with an assignment before a regular builtin.
MFC after:	1 week
2014-03-27 22:57:23 +00:00
Jilles Tjoelker
89d4f883a4 sh: Fix memory leak when trying to set a read only variable.
MFC after:	1 week
2014-03-27 22:52:26 +00:00
Jilles Tjoelker
1632bf1a88 sh: Fix possible memory leaks and double frees with unexpected SIGINT. 2014-03-26 20:43:40 +00:00
Jilles Tjoelker
728e552fdc sh: Don't overwrite old exit status if a PID is reused.
Only store exit status for a process if that process has not terminated yet.

Test (slow):
  exit 7 & p1=$!; until exit 8 & p2=$!; [ "$p1" = "$p2" ]; do wait "$p2";
  done; sleep 0.1; wait %1; echo $?
should write "7".
2014-03-20 22:38:13 +00:00
Jilles Tjoelker
7696168706 sh: Allow kill %job on jobs started without job control.
When killing a %job started without job control, kill all processes in it.
As with process groups and zombies, if any process in the job can be killed
or has already terminated, the command is successful.

This also fixes occasional failures of the builtins/kill1.0 test.
2014-03-15 14:58:48 +00:00
Jilles Tjoelker
61346cbdc7 sh: Add some consts. 2014-03-14 21:45:37 +00:00
Julio Merino
f5fd950e35 Make bsd.test.mk the only public mk fragment for the building of tests.
Change {atf,plain,tap}.test.mk to be internal implementation details of
bsd.test.mk.  Makefiles that build tests should now only include bsd.test.mk
and declaratively specify what they want to build, without worrying about
the internal implementation of the mk files.

The reason for this change is to permit building test programs of different
interfaces from a single directory, which is something I had a need for
while porting tests over from src/tools/regression/.

Additionally, this change makes it possible to perform some other requested
changes to bsd.test.mk in an easier manner.  Coming soon.
2014-03-14 08:56:19 +00:00
Jilles Tjoelker
4646e82dcd sh: Successfully do nothing when killing a terminated job.
If a job has terminated but is still known, silently do nothing when using
the kill builtin with the job specifier. Formerly, the shell called kill()
with the process group ID that might have been reused.
2014-03-08 19:44:34 +00:00
Jilles Tjoelker
a2cba42fc2 sh: Make argstr() return where it stopped and simplify expari() using this. 2014-03-04 22:30:38 +00:00
Jilles Tjoelker
ce16da82dd sh: Simplify expari().
Redo expari() like evalvar(). This makes the logic more understandable and
avoids possible problems if arithmetic expansion occurs if CTLESC characters
are not generated (looking backwards for CTLARI is not generally possible in
that case but the old code tried anyway).

This adds an extra argstr() recursion.
2014-03-02 22:59:34 +00:00
Jilles Tjoelker
5439648913 sh: Do not corrupt internal representation if LINENO inner expansion fails.
Example:
  f() { : ${LINENO+$((1/0))}; }
and call this function twice.
2014-02-27 16:54:43 +00:00
Jilles Tjoelker
85bf1d2f07 sh: Make expari() static. 2014-02-26 21:38:42 +00:00
Daichi GOTO
455b654622 sh: Add -h option to SYNOPSIS
Reviewed by:	jilles
MFC after:	soon
2014-02-25 03:05:43 +00:00
Jilles Tjoelker
48f49aac53 sh: Allow aliases to force alias substitution on the following word.
If an alias's value ends with a space or tab, the next word is also
checked for aliases.

This is a POSIX feature. It is useful with utilities like command and
nohup (alias them to themselves followed by a space).
2014-01-26 21:19:33 +00:00
Jilles Tjoelker
03e55809f4 sh: Add tests for alias names after another alias.
Since the first alias's value does not end with a blank, the next word
should not be checked for aliases.
2014-01-25 14:59:08 +00:00
Jilles Tjoelker
3d132810d2 sh: Do not depend on parse/execute split in new alias test. 2014-01-24 23:00:35 +00:00
Jilles Tjoelker
4b489a60e1 sh: Solve the alias recursion problem in a less hackish way.
Add the space to avoid alias recursion when the alias is expanded, not when
it is added.

As a result, displaying an alias via command -v, command -V or type no
longer erroneously appends a space. Adjust the tests so they now require
this bug to be absent.
2014-01-24 16:40:51 +00:00
Jilles Tjoelker
981a0f19d3 sh: Add test for nested alias. 2014-01-24 15:03:56 +00:00
Jilles Tjoelker
d78fdfde89 sh: Remove SIGWINCH handler and just check for resize before every read.
The SIGWINCH handler triggers breakage in libedit which is hard to fix; see
PR bin/169773.

Also, window size changes while a program is in foreground (and it rather
than sh will receive SIGWINCH) will now be picked up automatically.

Downside: it is now certain that a resize is only processed after pressing
<Enter>. If libedit is fixed, sh will most likely have to be changed also.

PR:		bin/180146
2014-01-14 22:56:25 +00:00
Julio Merino
9622238c09 Replace hand-crafted Kyuafiles with automatic generation.
Redo r260506 by using the new TEST_METADATA functionality of bsd.test.mk
to mark the sh(1) and test(1) tests as not supporting root.  This is to
get rid of hand-crafted Kyuafiles for these very simple cases.

MFC after:	5 days
2014-01-14 18:45:32 +00:00
Julio Merino
287083efce Run the sh(1) and test(1) tests as unprivileged.
One of the tests for test(1) fails and some of the tests for sh(1) are
silently bypassed when running as root.

To fix these tests and ensure they all run, mark the test programs for
sh(1) and test(1) as requiring an unprivileged user.  (This should and
will be the default in Kyua but isn't yet.)

MFC after:	1 week
2014-01-10 10:39:01 +00:00
Jilles Tjoelker
b14cfdf665 sh(1): Discourage use of -e.
Also, do not say that ! before a pipeline is an operator, because it is
syntactically a keyword.
2014-01-03 22:56:23 +00:00
Jilles Tjoelker
cac001aabe sh: Don't check input for non-whitespace if history is disabled.
preadbuffer() maintained a flag whether there was any non-whitespace
character. This flag is only useful when history is enabled (in that case,
lines containing only whitespace are not added to history). Instead, check
using strspn() when history is enabled.

There is an approximate 2% speedup when running
  sh -c '. /etc/rc.subr; . /etc/defaults/rc.conf; source_rc_confs'
with hot cache.
2013-12-27 15:52:18 +00:00