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* sh: Remove impossible evalskip check in 'for'.Jilles Tjoelker2011-11-271-3/+0
| | | | Notes: svn path=/head/; revision=228015
* sh: Reduce one level of evaltree() recursion when executing 'case'.Jilles Tjoelker2011-11-261-11/+9
| | | | | | | | | | Free expanded case text before executing commands. Remove impossible evalskip checks (expanding an argument cannot set evalskip anymore since $(break) and the like are properly executed in a subshell environment). Notes: svn path=/head/; revision=228013
* test: Reduce code size of ops table.Jilles Tjoelker2011-11-251-5/+5
| | | | Notes: svn path=/head/; revision=227984
* Remove yet another outdated note about procfs(5) being required.Mikolaj Golub2011-11-221-6/+0
| | | | | | | Spotted by: arundel Notes: svn path=/head/; revision=227846
* No need in procfs(5).Mikolaj Golub2011-11-222-25/+1
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=227840
* sh: Allow unsetting OPTIND.Jilles Tjoelker2011-11-201-2/+3
| | | | | | | Note that only assigning the decimal value 1 resets getopts, as before. Notes: svn path=/head/; revision=227773
* sh: Remove undefined behaviour due to overflow in +/-/* in arithmetic.Jilles Tjoelker2011-11-081-3/+3
| | | | | | | With i386 base gcc and i386 base clang, arith_yacc.o remains unchanged. Notes: svn path=/head/; revision=227369
* sh(1): Improve documentation of field splitting.Jilles Tjoelker2011-11-051-11/+55
| | | | Notes: svn path=/head/; revision=227122
* Put some static keywords in the source code.Ed Schouten2011-10-316-23/+23
| | | | | | | | | For these simple utilities, it doesn't harm to make all global variables static. In fact, this allows the compiler to perform better forms of optimisation and analysis. Notes: svn path=/head/; revision=226961
* For processes with no controlling terminal, display "-" in the TTY columnEdward Tomasz Napierala2011-10-302-4/+8
| | | | | | | | | instead of "?". Submitted by: arundel Notes: svn path=/head/; revision=226939
* If ls was invoked with -i but neither -l nor -s, blocksize was used inDag-Erling Smørgrav2011-10-191-2/+2
| | | | | | | | | | display() to calculate column widths, but was not initialized in main(). This resulted in a division by zero. Noticed by: Michael Butler <imb@protected-networks.net> Notes: svn path=/head/; revision=226546
* When calculating the width of the blocksize column, ls(1) used 512-byteDag-Erling Smørgrav2011-10-181-2/+2
| | | | | | | | | | units (as returned by stat(2)) instead of BLOCKSIZE units. Submitted by: Paul Schenkeveld MFC after: 3 weeks Notes: svn path=/head/; revision=226509
* Minor clarificationDag-Erling Smørgrav2011-10-181-1/+2
| | | | | | | MFC after: 3 weeks Notes: svn path=/head/; revision=226503
* Simplify df(1) by factoring out most of the common code:Dag-Erling Smørgrav2011-10-181-26/+27
| | | | | | | | | | | | | | | | | | | | | | | | - In the argc == 0 case, just populate the mount list as before, but do not calculate widths, update totals or print anything. - In the argv > 0 case, collect information about the requested file systems and store it in the mount list, but do not calculate widths, update totals or print anything. - In either case, once all the information has been collected, iterate once through the mount list to calculate widths and totals, then once more to print everything. This also fixes two bugs: firstly, column widths were not calculated correctly if more than one file system was specified on the command line; and secondly, file systems with MNT_IGNORE were included in the totals even if -a was not specified. Noticed by: Paul Schenkeveld MFC after: 3 weeks Notes: svn path=/head/; revision=226502
* Don't chop IO into small pieces, follow cp(1) and just use MAXPHYS.Ivan Voras2011-10-031-15/+9
| | | | Notes: svn path=/head/; revision=225954
* Correct a typo that was introduced in 225912Glen Barber2011-10-021-1/+1
| | | | | | | | | Submitted by: Valentin Nechayev (netch % netch!kiev!ua), arundel MFC after: 1 week With-MFC: 225908 Notes: svn path=/head/; revision=225927
* Tweaks to ps(1):Glen Barber2011-10-011-9/+16
| | | | | | | | | | | | | | | | | | | - there's no reason the semantics of the -x flag are being explained in the -a flag description - be more precise regarding the relation between the -a flag and the security.bsd.see_other_uids sysctl - describe the format of the -t flag's argument - 'con' no longer is a possible entry in the 'TT' column - explain that the 'TT' column refers to pseudo-terminals via mere numbers - add a hint in the 'tt' keyword description that a keyword 'tty' exists, which will give the full terminal pathname Submitted by: arundel (via docs@) (original) MFC after: 1 week With-MFC: 225908 Notes: svn path=/head/; revision=225912
* Reorder default ps(1) output according to reality.Glen Barber2011-10-011-2/+2
| | | | | | | | Submitted by: arundel (via docs@) MFC after: 1 week Notes: svn path=/head/; revision=225908
* Make ps(1) automatically size its column widths.Edward Tomasz Napierala2011-09-295-603/+451
| | | | Notes: svn path=/head/; revision=225868
* Get rid of major/minor number distinction.Ed Schouten2011-09-285-45/+22
| | | | | | | | | | | | | | | | | | | | | | | | | As of FreeBSD 6, devices can only be opened through devfs. These device nodes don't have major and minor numbers anymore. The st_rdev field in struct stat is simply based a copy of st_ino. Simply display device numbers as hexadecimal, using "%#jx". This is allowed by POSIX, since it explicitly states things like the following (example taken from ls(1)): "If the file is a character special or block special file, the size of the file may be replaced with implementation-defined information associated with the device in question." This makes the output of these commands more compact. For example, ls(1) now uses approximately four columns less. While there, simplify the column length calculation from ls(1) by calling snprintf() with a NULL buffer. Don't be afraid; if needed one can still obtain individual major/minor numbers using stat(1). Notes: svn path=/head/; revision=225847
* Fix memory leaks in error cases.Christian Brueffer2011-08-271-0/+3
| | | | | | | | | | PR: 159011 Submitted by: Henning Petersen <henning.petersen@t-online.de> Approved by: re (kib) MFC after: 1 week Notes: svn path=/head/; revision=225215
* Rename ki_ocomm to ki_tdname and OCOMMLEN to TDNAMLEN.Bjoern A. Zeeb2011-07-182-9/+9
| | | | | | | | | | | | Provide backward compatibility defines under BURN_BRIDGES. Suggested by: jhb Reviewed by: emaste Sponsored by: Sandvine Incorporated Approved by: re (kib) Notes: svn path=/head/; revision=224199
* sh(1): Extend documentation about subshells.Jilles Tjoelker2011-07-101-8/+46
| | | | | | | | | | | | | | Because sh executes commands in subshell environments without forking in more and more cases (particularly from 8.0 on), it makes sense to describe subshell environments more precisely using ideas from POSIX, together with some FreeBSD-specific items. In particular, the hash and times builtins may not behave as if their state is copied for a subshell environment while leaving the parent shell environment unchanged. Notes: svn path=/head/; revision=223909
* Fix style, since this file has just been touched in a major way.Stefan Eßer2011-07-091-96/+75
| | | | | | | No actual code changes. Notes: svn path=/head/; revision=223883
* Some refactoring for easier maintenance of the code. This is a follow-upStefan Eßer2011-07-091-146/+69
| | | | | | | | | to re-establishment of 64bit arithmetic, but is committed separately, to not obscure that conversion. This commit does not change the observed behaviour of expr in any way. Style will be fixed in a follow-up commit. Notes: svn path=/head/; revision=223882
* Make /bin/expr support 64bit numeric range and range checks by default,Stefan Eßer2011-07-092-140/+152
| | | | | | | | | | | | | | | | | | | | | | | | | | | again. This brings back the behaviour of expr in FreeBSD-4, which had been reverted due to an assumed incompatbility with POSIX.1 for FreeBSD-5. This issue has been discussed in the freebsd-standards list, and the consensus was, that POSIX.1 is in fact not violated by this extension, since it affects only cases of POSIX undefined behaviour (overflow of signed long). Other operating systems did upgrade their versions of expr to support 64bit range, after it had been initially brought to FreeBSD. They have used it for a decade without problems, meanwhile. The -e option is retained, but it will only select less strict checking of numeric parameters (leading white-space, leading "+" are allowed and skipped, an empty string is considered to represent 0 in numeric context.) The call of check_utility_compat() as a means of establishing backwards compatibility with FreeBSD-4 is considered obsolete, but preserved in this commit. It is expected to be removed in a later revision of this file. Reviewed by: bde, das, jilles MFC after: 2 month (those parts that do not violate POLA) Notes: svn path=/head/; revision=223881
* Bump date after the previous commit.Sergey Kandaurov2011-07-011-1/+1
| | | | Notes: svn path=/head/; revision=223709
* Update and sort the list of the available keywords.Sergey Kandaurov2011-07-011-6/+8
| | | | Notes: svn path=/head/; revision=223708
* sh: Include <limits.h> instead of non-standard <sys/limits.h>.Jilles Tjoelker2011-06-261-1/+1
| | | | Notes: svn path=/head/; revision=223580
* sh(1): Improve documentation of shell patterns:Jilles Tjoelker2011-06-241-5/+10
| | | | | | | | | | | | | | * Shell patterns are also for ${var#pat} and the like. * An '!' by itself will not trigger pathname generation so do not call it a meta-character, even though it has a special meaning directly after an '['. * Character ranges are locale-dependent. * A '^' will complement a character class like '!' but is non-standard. MFC after: 1 week Notes: svn path=/head/; revision=223522
* sh(1): Document the case command better.Jilles Tjoelker2011-06-241-2/+13
| | | | | | | | Suggested by: netchild Reviewed by: gjb Notes: svn path=/head/; revision=223517
* Remove duplicated header filesKevin Lo2011-06-242-2/+0
| | | | Notes: svn path=/head/; revision=223494
* Make ``realpath'' behave like ``realpath .''.Ruslan Ermilov2011-06-212-11/+15
| | | | Notes: svn path=/head/; revision=223372
* sh: Remove special support for background simple commands.Jilles Tjoelker2011-06-183-9/+5
| | | | | | | It expands the arguments in the parent shell process, which is incorrect. Notes: svn path=/head/; revision=223282
* sh: Add do-nothing -h option.Jilles Tjoelker2011-06-182-2/+8
| | | | | | | | | | | | | POSIX requires a -h option to sh and set, to locate and remember utilities invoked by functions as they are defined. Given that this locate-and-remember process is optional elsewhere, it seems safe enough to make this option do nothing. POSIX does not specify a long name for this option. Follow ksh in calling it "trackall". Notes: svn path=/head/; revision=223281
* sh: Add case statement fallthrough (with ';&' instead of ';;').Jilles Tjoelker2011-06-175-7/+28
| | | | | | | | | | | | | | | 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. Notes: svn path=/head/; revision=223186
* sh: Skip variables with invalid names in "set", "export -p", "readonly -p".Jilles Tjoelker2011-06-171-0/+13
| | | | | | | This ensures the output of these commands is valid shell input. Notes: svn path=/head/; revision=223183
* sh: Reduce unnecessary forks with eval.Jilles Tjoelker2011-06-161-1/+2
| | | | | | | | | | | | | The eval special builtin now runs the code with EV_EXIT if it was run with EV_EXIT itself. In particular, this eliminates one fork when a command substitution contains an eval command that ends with an external program or a subshell. This is similar to what r220978 did for functions. Notes: svn path=/head/; revision=223163
* sh: Add support for named character classes in bracket expressions.Jilles Tjoelker2011-06-152-2/+48
| | | | | | | | Example: case x in [[:alpha:]]) echo yes ;; esac Notes: svn path=/head/; revision=223120
* Add "gid" and "group" keywords to display the effective group IDEdward Tomasz Napierala2011-06-144-2/+34
| | | | | | | | | | and effective group name. Also, add "egid", "egroup" and "euid" aliases. PR: bin/146331 Submitted by: Jeremie Le Hen <jeremie at le-hen dot org> Notes: svn path=/head/; revision=223086
* sh: Fix duplicate prototypes for builtins.Jilles Tjoelker2011-06-1323-41/+14
| | | | | | | | | 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. Notes: svn path=/head/; revision=223060
* sh: Save/restore changed variables in optimized command substitution.Jilles Tjoelker2011-06-127-89/+25
| | | | | | | | | | | | | | 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 $!) again, simplifies the man page and shortens the code. Notes: svn path=/head/; revision=223024
* sh: Fix locale-dependent ranges in bracket expressions.Jilles Tjoelker2011-06-121-4/+4
| | | | | | | | | | | When I added UTF-8 support in r221646, the LC_COLLATE-based ordering broke because of sign extension of char. Because of libc restrictions, this does not work for UTF-8. For UTF-8 locales, ranges always use character code order. Notes: svn path=/head/; revision=223010
* sh: Read .profile from the home directory (or / if HOME is not set).Jilles Tjoelker2011-06-121-1/+1
| | | | | | | | | | | | | In most cases, login shells are started from the home directory, but not in all, such as xterm -ls. This commit depends on r222957 for read_profile() performing parameter expansion. PR: bin/50569 Notes: svn path=/head/; revision=223005
* sh: Do parameter expansion on ENV before using it.Jilles Tjoelker2011-06-102-7/+13
| | | | | | | | | This is required by POSIX, and allows things like ENV=\$HOME/.shrc. Note that tilde expansion is explicitly not performed. Notes: svn path=/head/; revision=222957
* sh: Do parameter expansion before printing PS4 (set -x).Jilles Tjoelker2011-06-095-4/+51
| | | | | | | | | | | | | | | | | | | The function name expandstr() and the general idea of doing this kind of expansion by treating the text as a here document without end marker is from dash. All variants of parameter expansion and arithmetic expansion also work (the latter is not required by POSIX but it does not take extra code and many other shells also allow it). Command substitution is prevented because I think it causes too much code to be re-entered (for example creating an unbounded recursion of trace lines). Unfortunately, our LINENO is somewhat crude, otherwise PS4='$LINENO+ ' would be quite useful. Notes: svn path=/head/; revision=222907
* sh: Fix $? in heredocs on simple commands.Jilles Tjoelker2011-06-051-1/+2
| | | | | | | PR: bin/41410 Notes: svn path=/head/; revision=222716
* sh: Improve error message if the script cannot be opened.Jilles Tjoelker2011-06-041-2/+4
| | | | | | | Avoid "<nosuchfile>: cannot open <nosuchfile>: ...". Notes: svn path=/head/; revision=222699
* sh: Reduce more needless differences between error messages.Jilles Tjoelker2011-06-044-5/+5
| | | | Notes: svn path=/head/; revision=222684
* sh: Honour -n while processing -c string.Jilles Tjoelker2011-06-041-1/+1
| | | | Notes: svn path=/head/; revision=222676
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