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* Sync sh(1) in stable/10 to head.jmmv2014-03-09149-2297/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* sh: Make return return from the closest function or dot script.jilles2013-09-041-0/+13
| | | | | | | | | | | | | Formerly, return always returned from a function if it was called from a function, even if there was a closer dot script. This was for compatibility with the Bourne shell which only allowed returning from functions. Other modern shells and POSIX return from the function or the dot script, whichever is closest. Git 1.8.4's rebase --continue depends on the POSIX behaviour. Reported by: Christoph Mallon, avg
* sh: Recognize "--" as end of options in type builtin.jilles2013-08-301-0/+3
| | | | | This implementation makes minimal changes: command names starting with "-" (other than "--") can still be queried normally.
* sh: Recognize "--" as end of options in alias builtin.jilles2013-08-251-0/+4
| | | | | Aliases starting with "-" (which are non-POSIX) will need to be preceded by an alias not starting with "-" or the newly added "--".
* sh: Recognize "--" as end of options in bg/fg/jobid builtins.jilles2013-08-161-0/+9
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* sh: Add test for the non-standard jobid builtin.jilles2013-08-161-0/+7
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* sh: Recognize "--" as end of options in local builtin.jilles2013-08-141-0/+12
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* sh: Add tests for 'local -' (save shell options).jilles2013-06-152-0/+43
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* sh: Return status 127 for unknown jobs in wait builtin.jilles2013-06-052-0/+8
| | | | | | | | | | This is required by POSIX, at least for pids that are not known child processes. Other problems with job specifications still cause wait to abort with exit status 2. PR: 176916
* sh: Allow multiple operands in wait builtin.jilles2013-06-051-0/+7
| | | | | | | | This is only part of the PR; the behaviour for unknown/invalid pids/jobs remains unchanged (aborts the builtin with status 2). PR: 176916 Submitted by: Vadim Goncharov
* sh: Add test cases for break outside a loop.jilles2013-05-312-0/+19
| | | | | | In most shells (including our sh), break outside a loop does nothing with status 0, or at least does not abort. Therefore, scripts sometimes (buggily) depend on this.
* sh: Remove racy test case for read builtin.jilles2013-05-031-13/+0
| | | | | | | This test case sometimes fails because of an EINTR-related race condition. Fixing this race condition likely requires an extra system call per byte, which would make the read builtin even slower than it already is, or very complicated trickery. Therefore, remove the test case for now.
* sh: Improve error handling in read builtin:jilles2013-05-032-0/+18
| | | | | | | | | | | | * If read -t times out, return status as if interrupted by SIGALRM (formerly 1). * If a trapped signal interrupts read, return status 128+sig (formerly 1). * If [EINTR] occurs but there is no trap, retry the read (for example because of a SIGWINCH in interactive mode). * If a read error occurs, write an error message and return status 2. As before, a variable assignment error returns 2 and discards the remaining data read.
* sh: Add a variation on builtins/eval4.0 where the cmdsubst returns 0.jilles2013-04-061-0/+5
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* sh: Recognize "--" and explicitly reject options in wait builtin.jilles2013-03-152-0/+7
| | | | | | If syntactically invalid job identifiers are to be taken as jobs that exited with status 127, this should not apply to options, so that we can add options later if need be.
* sh: When executing a trap, keep exit status along with evalskip.jilles2013-03-031-0/+10
| | | | | | | This ensures 'return' in a trap returns the correct status to the caller. If evalskip is not set or if it is overridden by a previous evalskip, keep the old behaviour of restoring the exit status from before the trap.
* sh: If a SIGINT or SIGQUIT interrupts "wait", return status 128+sig.jilles2013-02-232-0/+24
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* sh: Test that the exit status is 1 if read encounters EOF.jilles2013-02-231-0/+5
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* sh: Add tests for modifying an alias (r242766).jilles2012-11-082-0/+16
| | | | | Note: parser/alias10.0 will eat a lot of memory/cpu time when it fails (with the old sh).
* sh: Add a simple test for the "local" builtin.jilles2012-07-151-0/+13
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* sh: Do not assume that SIGPIPE will only kill a subshell in builtins/wait3.0jilles2012-06-081-1/+1
| | | | | | | | | | | | | | test. POSIX says that SIGPIPE affects a process and therefore a SIGPIPE caused and received by a subshell environment may or may not affect the parent shell environment. The change assumes that ${SH} is executed in a new process. This must be the case if it contains a slash and everyone appears to do so anyway even though POSIX might permit otherwise. This change makes builtins/wait3.0 work in ksh93.
* sh: Make 'hash' return 1 if at least one utility is not found.jilles2012-02-111-0/+6
| | | | Reported by: lme
* sh: Fix $? in the first command of a 'for'.jilles2012-01-222-0/+17
| | | | | | In the first command of a 'for', $? should be the exit status of the last pipeline (command substitution in the word list or command before 'for'), not always 0.
* sh: Fix execution of multiple statements in a trap when evalskip is setdumbbell2012-01-162-0/+14
| | | | | | | | | | | Before this fix, only the first statement of the trap was executed if evalskip was set. This is for example the case when: o "-e" is set for this shell o a trap is set on EXIT o a function returns 1 and causes the script to abort Reviewed by: jilles MFC after: 2 weeks
* sh: Test EXIT trap with multiple statements in itdumbbell2012-01-161-0/+3
| | | | | Reviewed by: jilles MFC after: 2 weeks
* sh: Fix some bugs with exit status from case containing ;&.jilles2012-01-153-0/+17
| | | | | | | | | | | | | Also, rework evalcase() to not evaluate any tree. Instead, return the NCLISTFALLTHRU node and handle it in evaltree(). Fixed bugs: * If a ;& list with non-zero exit status is followed by an empty ;; or final list, the exit status of the case command should be equal to the exit status of the ;& list, not 0. * An empty ;& case should not reset $?.
* sh: Fix two bugs with case and exit status:jilles2012-01-153-0/+17
| | | | | | | * If no pattern is matched, POSIX says the exit status shall be 0 (even if there are command substitutions). * If a pattern is matched and there are no command substitutions, the first command should see the $? from before the case command, not always 0.
* sh: Properly show "Not a directory" error in cd builtin.jilles2012-01-131-0/+26
| | | | | | | | The errno message display added in r222292 did not take attempting to cd to a non-directory or something that cannot be stat()ed into account. PR: bin/164070 MFC after: 10 days
* sh: Avoid possible echo options in a testcase.jilles2012-01-061-3/+3
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* Spelling fixes for tools/uqs2011-12-301-1/+1
| | | | Add some $FreeBSD$ tags so svn will allow the commit.
* sh: Allow quoting ^ and ] in bracket expressions.jilles2011-12-281-0/+12
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* sh: Add tests for some corner cases of 'case' exit status.jilles2011-11-262-0/+12
| | | | These already work properly.
* sh: Add test for exit status of for loop without items.jilles2011-10-281-0/+4
| | | | | | POSIX says the exit status of a for loop without any items shall be 0. There are no exceptions if the exit status of the previous command was not 0 or if the item list contains a command substitution with non-zero exit status.
* sh: Test that '!' is literal if quoted and first char of bracket expressionjilles2011-06-251-0/+16
| | | | This also works on stable/8.
* sh: Add case statement fallthrough (with ';&' instead of ';;').jilles2011-06-171-0/+39
| | | | | | | | | | | | Replacing ;; with the new control operator ;& will cause the next list to be executed as well without checking its pattern, continuing until a list ends with ;; or until the end of the case statement. This is like omitting "break" in a C "switch" statement. The sequence ;& was formerly invalid. This feature is proposed for the next POSIX issue in Austin Group issue #449.
* sh: Skip variables with invalid names in "set", "export -p", "readonly -p".jilles2011-06-172-0/+6
| | | | This ensures the output of these commands is valid shell input.
* sh: Add support for named character classes in bracket expressions.jilles2011-06-151-0/+32
| | | | | Example: case x in [[:alpha:]]) echo yes ;; esac
* sh: Add test for LC_COLLATE-based character ranges in case.jilles2011-06-121-0/+24
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* sh: Add test for case pattern matching with iso-8859-1 charset.jilles2011-06-121-0/+52
| | | | This also passes on stable/8.
* sh: Reduce more needless differences between error messages.jilles2011-06-041-1/+1
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* sh: Add test for 'set +o'.jilles2011-05-291-0/+32
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* sh: Correct criterion for using CDPATH in cd.jilles2011-05-272-0/+25
| | | | | | | CDPATH should be ignored not only for pathnames starting with '/' but also for pathnames whose first component is '.' or '..'. The man page already describes this behaviour.
* sh: Add simple CDPATH test.jilles2011-05-271-0/+23
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* sh: Add test for r222173.jilles2011-05-221-0/+12
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* sh: Implement the cd -e flag proposed for the next POSIX issue.jilles2011-05-202-0/+59
| | | | | | | | | This reflects failure to determine the pathname of the new directory in the exit status (1). Normally, cd returns successfully if it did chdir() and the call was successful. In POSIX, -e only has meaning with -P; because our -L is not entirely compliant and may fall back to -P mode, -e has some effect with -L as well.
* sh: Add UTF-8 support to pattern matching.jilles2011-05-081-0/+57
| | | | | | | | | | ?, [...] patterns match codepoints instead of bytes. They do not match invalid sequences. [...] patterns must not contain invalid sequences otherwise they will not match anything. This is so that ${var#?} removes the first codepoint, not the first byte, without putting UTF-8 knowledge into the ${var#pattern} code. However, * continues to match any string and an invalid sequence matches an identical invalid sequence. (This differs from fnmatch(3).)
* sh: Add test for bin/56147.jilles2011-04-151-0/+6
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* sh: Test that . /dev/null returns exit status 0 and does not preserve $?.jilles2011-03-071-0/+10
| | | | | | | Preserving $? may cause problems particularly if set -e is in effect. It may be useful to preserve the old value of $? in the dot script but this must not be implemented in such a way that it would break this test.
* sh: Split off some special behaviour into separate tests.jilles2011-02-202-1/+7
| | | | This allows some other shells to pass the tests for basic behaviour.
* sh: Test that the read builtin passes through all byte valuesjilles2011-02-181-0/+32
| | | | | | except NUL, newline and backslash. This also passes on stable/8.
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