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272461 |
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02-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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262951 |
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09-Mar-2014 |
jmmv |
Sync sh(1) in stable/10 to head.
This is a MFC of all the commits listed below.
My original goal of this change was to only merge the move of the tests from tools/regression/bin/ into the new layout (which include tests for sh(1) and other tools as well). However, doing so is tricky due to the ongoing work in sh(1) and, especially, the many changes to its tests since stable/10 was first branched.
Merging everything is the simplest way to achieve this goal and, as a bonus point, we get various fixes and miscellaneous improvements into the branch.
Per jilles' suggestion, I'm avoiding the merge of a couple of changes (r256850 and r257506) that required depending kernel changes. I'm also avoiding very recent changes that have not had a long enough time to be validated in current.
This is "make tinderbox" clean.
r256735 sh: Remove one syscall when waiting for a foreground job. r257399 sh: Allow trapping SIGINT/SIGQUIT after ignore because of '&'. r257504 sh: Reorder union node to reduce its size on 64-bit platforms. r257920 sh: Add a test case for would-be assignments that are not due to quoting. r257929 sh: Properly quote alias output from command -v. r258489 sh: Add tests for the </dev/null implicit in a background command. r258533 sh: Add more tests for the </dev/null implicit in a background command. r258535 sh: Make <&0 disable the </dev/null implicit in a background command. r258776 sh: Prefer memcpy() to strcpy() in most cases. Remove the scopy macro. r259047 sh: Split set -x output into a separate function. r259210 Migrate tools/regression/bin/ tests to the new layout. r259844 sh: Remove an unused variable. r259846 sh: Initialize OPTIND=1 even if it came from the environment. r259874 sh: Simplify code related to PPID variable. r259946 sh: Don't check input for non-whitespace if history is disabled. r260246 sh(1): Discourage use of -e. r260506 Run the sh(1) and test(1) tests as unprivileged. r260586 Mark the bin/pax tests as requiring perl. r260634 Use TAP_TESTS_PERL to register the legacy_test in bin/pax. r260635 Replace hand-crafted Kyuafiles with automatic generation. r260654 sh: Remove SIGWINCH handler and just check for resize before every read. r261121 sh: Add test for nested alias. r261125 sh: Solve the alias recursion problem in a less hackish way. r261141 sh: Do not depend on parse/execute split in new alias test. r261160 sh: Add tests for alias names after another alias. r261192 sh: Allow aliases to force alias substitution on the following word. r262533 sh: Make expari() static. r262565 sh: Do not corrupt internal representation if LINENO inner expansion fails. r262697 sh: Simplify expari().
Reviewed by: jilles
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256281 |
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10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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246288 |
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03-Feb-2013 |
jilles |
sh: Expand here documents in the current process.
Expand here documents at the same point other redirections are expanded but use a non-fork subshell environment (like simple command substitutions) for compatibility. Substitition errors result in an empty here document like before.
As a result, a fork is avoided for short (<4K) expanded here documents.
Unexpanded here documents (with quoted end marker after <<) are not affected by this change. They already only forked when >4K.
Side effects: * Order of expansion is slightly different. * Slow expansions are not executed in parallel with the redirected command. * A non-fork subshell environment is subtly different from a forked process.
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229220 |
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01-Jan-2012 |
jilles |
sh: Make various functions static.
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223060 |
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13-Jun-2011 |
jilles |
sh: Fix duplicate prototypes for builtins.
Have mkbuiltins write the prototypes for the *cmd functions to builtins.h instead of builtins.c and include builtins.h in more .c files instead of duplicating prototypes for *cmd functions in other headers.
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223024 |
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12-Jun-2011 |
jilles |
sh: Save/restore changed variables in optimized command substitution.
In optimized command substitution, save and restore any variables changed by expansions (${var=value} and $((var=assigned))), instead of trying to determine if an expansion may cause such changes.
If $! is referenced in optimized command substitution, do not cause jobs to be remembered longer.
This fixes $(jobs $!) again, simplifies the man page and shortens the code.
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216778 |
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28-Dec-2010 |
jilles |
sh: Don't do optimized command substitution if expansions have side effects.
Before considering to execute a command substitution in the same process, check if any of the expansions may have a side effect; if so, execute it in a new process just like happens if it is not a single simple command.
Although the check happens at run time, it is a static check that does not depend on current state. It is triggered by: - expanding $! (which may cause the job to be remembered) - ${var=value} default value assignment - assignment operators in arithmetic - parameter substitutions in arithmetic except ${#param}, $$, $# and $? - command substitutions in arithmetic
This means that $((v+1)) does not prevent optimized command substitution, whereas $(($v+1)) does, because $v might expand to something containing assignment operators.
Scripts should not depend on these exact details for correctness. It is also imaginable to have the shell fork if and when a side effect is encountered or to create a new temporary namespace for variables.
Due to the $! change, the construct $(jobs $!) no longer works. The value of $! should be stored in a variable outside command substitution first.
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214512 |
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29-Oct-2010 |
jilles |
sh: Do IFS splitting on word in ${v+word} and ${v-word}.
The code is inspired by NetBSD sh somewhat, but different because we preserve the old Almquist/Bourne/Korn ability to have an unquoted part in a quoted ${v+word}. For example, "${v-"*"}" expands to $v as a single field if v is set, but generates filenames otherwise.
Note that this is the only place where we split text literally from the script (the similar ${v=word} assigns to v and then expands $v). The parser must now add additional markers to allow the expansion code to know whether arbitrary characters in substitutions are quoted.
Example: for i in ${$+a b c}; do echo $i; done
Exp-run done by: pav (with some other sh(1) changes)
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200956 |
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24-Dec-2009 |
jilles |
sh: Constify various strings.
Most of this is adding const keywords, but setvar() in var.c had to be changed somewhat more.
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127958 |
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06-Apr-2004 |
markm |
Remove clause 3 from the UCB licenses.
OK'ed by: imp, core
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108286 |
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26-Dec-2002 |
tjr |
Add the "wordexp" shell built-in command which will be used to implement the POSIX wordexp() function.
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#
90111 |
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02-Feb-2002 |
imp |
o __P has been reoved o Old-style K&R declarations have been converted to new C89 style o register has been removed o prototype for main() has been removed (gcc3 makes it an error) o int main(int argc, char *argv[]) is the preferred main definition. o Attempt to not break style(9) conformance for declarations more than they already are. o Change int foo() { ... to int foo(void) { ...
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50471 |
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27-Aug-1999 |
peter |
$Id$ -> $FreeBSD$
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#
45514 |
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09-Apr-1999 |
tegge |
When a variable expansion is enclosed in double quotes, the internal representation of the expression is quoted. Take care of this when doing pattern matching in conjunction with trimming.
#!/bin/sh c=d:e; echo "${c%:e}"
PR: NetBSD PR#7231 Noticed by: Havard Eidnes <Havard.Eidnes@runit.sintef.no>
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39137 |
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13-Sep-1998 |
tegge |
Be more consistent with handling of quote mark control character. Don't output double-quotes inside variable expansion/arithmetic expansion region in here-documents. When leaving the arithmetic expansion syntax mode, adjust the dblquote flag according to previous syntax, in order to avoid splitting of quoted variables.
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#
38887 |
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06-Sep-1998 |
tegge |
Better handling of word splitting. Don't record the same region multiple times when performing nested variable expansion, and preserve some quoting information in order to avoid removing apparently empty expansion result.
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#
22988 |
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22-Feb-1997 |
peter |
Revert $FreeBSD$ to $Id$
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#
21673 |
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14-Jan-1997 |
jkh |
Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
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#
17987 |
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01-Sep-1996 |
peter |
Merge of 4.4-Lite2 sh source, plus some gcc -Wall cleaning. This is a merge of parallel duplicate work by Steve Price and myself. :-]
There are some changes to the build that are my fault... mkinit.c was trying (poorly) to duplicate some of the work that make(1) is designed to do. The Makefile hackery is my fault too, the depend list was incomplete because of some explicit OBJS+= entries, so mkdep wasn't picking up their source file #includes.
This closes a pile of /bin/sh PR's, but not all of them..
Submitted by: Steve Price <steve@bonsai.hiwaay.net>, peter
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3044 |
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24-Sep-1994 |
dg |
Added $Id$
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#
1557 |
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26-May-1994 |
rgrimes |
This commit was generated by cvs2svn to compensate for changes in r1556, which included commits to RCS files with non-trunk default branches.
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#
1556 |
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26-May-1994 |
rgrimes |
BSD 4.4 Lite bin Sources
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