Commit Graph

35 Commits

Author SHA1 Message Date
joel
29af67e52c Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with:	imp, rwatson
2010-12-11 08:32:16 +00:00
ed
9b380e30d4 Build usr.bin/ with WARNS=6 by default.
Also add some missing $FreeBSD$ to keep svn happy.
2010-01-02 10:27:05 +00:00
gad
3f878e63ab Update the date on the man-page to reflect the date that the '-u name'
change was committed, instead of when I had first started writing it...
2008-05-06 16:06:02 +00:00
gad
c5555371c3 Add the '-u name' option to the env command, which will completely unset
the given variable name (removing it from the environment, instead of
just setting it to a null value).

PR:		bin/65649
MFC after:	2 weeks
2008-04-17 23:17:09 +00:00
scf
196b6346ba Significantly reduce the memory leak as noted in BUGS section for
setenv(3) by tracking the size of the memory allocated instead of using
strlen() on the current value.

Convert all calls to POSIX from historic BSD API:
 - unsetenv returns an int.
 - putenv takes a char * instead of const char *.
 - putenv no longer makes a copy of the input string.
 - errno is set appropriately for POSIX.  Exceptions involve bad environ
   variable and internal initialization code.  These both set errno to
   EFAULT.

Several patches to base utilities to handle the POSIX changes from
Andrey Chernov's previous commit.  A few I re-wrote to use setenv()
instead of putenv().

New regression module for tools/regression/environ to test these
functions.  It also can be used to test the performance.

Bump __FreeBSD_version to 700050 due to API change.

PR:		kern/99826
Approved by:	wes
Approved by:	re (kensmith)
2007-07-04 00:00:41 +00:00
ache
6ccaf050cc Back out all POSIXified *env() changes.
Not because I admit they are technically wrong and not because of bug
reports (I receive nothing). But because I surprisingly meets so
strong opposition and resistance so lost any desire to continue that.

Anyone who interested in POSIX can dig out what changes and how
through cvs diffs.
2007-05-01 16:02:44 +00:00
ache
de97550b4e env calls setenv("name=value", "value", 1); which violates POSIX:
"The setenv( ) function shall fail if:
[EINVAL] The name argument is a null pointer, points to an empty string,
or points to a string containing an '=' character."
The fix (like all others in this subject) is backward-compatible.
2007-04-30 19:25:00 +00:00
gad
c60077abb1 Fix minor memory leak when expanding ${variable}s
Noticed by:	Dave Hart
MFC plans:	after checking with re@
2005-07-18 22:18:16 +00:00
gad
4aa994cdc4 Fix two minor parsing bugs in -S processing:
1) An unquoted space is always a separator, even when not "in_arg".
 2) When a new destination buffer must be allocated during variable
    substitution, only copy data from the active buffer to the new
    one when we *are* "in_arg".
These were noticed when testing variable-substitution of variables
which have null values, and are not inside quoted strings...

MFC plans:	after a few days, and re@ approval...
2005-07-13 15:56:30 +00:00
ru
1a463a3cbe Tidy up the markup.
Approved by:	re (blanket)
OK'ed by:	gad
2005-06-22 19:04:07 +00:00
gad
11fac6778b Fix a bug where the value of ${SOMEVAR} would simply disappear if there
was a separator character immediately before it.  This wasn't likely to
happen in #-lines, but we might as well get it right.  Also fix it so
that "" and "" will create a zero-length argument.

Approved by:	re (blanket `env')
2005-06-21 21:37:53 +00:00
gad
ec12d33e6f Put in a more descriptive heading for the `env' command.
Noticed by:	Matthew D Fuller
Approved by:	re (blanket `env')
2005-06-21 19:45:02 +00:00
gad
45fff07d96 Undo r1.14 to env.c. While it is unusual for environment variables to
start with a '/', they are more supported (by POSIX and SUSv3) than
filenames which have an '=' in them.

Noticed by:	tjr
Approved by:	re (blanket `env')
2005-06-21 19:38:26 +00:00
gad
82ebcba30a Add the '-S' and '-P' options. The '-S' option can be used to split
apart a string, and supports some text substitutions.  This can be
used to provide all the flexibility (and more!) that was lost by recent
changes to how the kernel parses #!-lines in shell scripts.

The '-P' option provides a way to specify an alternate set of directories
to use when searching for the 'utility' program to run.  This way you can
be sure what directories are used for that search, without changing the
value of PATH that the user has set.  Note that on FreeBSD 6.0, this
option is worthless unless the '-S' option is also used.

Approved by:	re (blanket `env')
2005-06-20 03:43:25 +00:00
gad
b785b6343e If the `utility' specified starts with a '/' character, then execute it
without checking it for an equals-sign.  If it starts with a slash, then
it cannot be a request to set the value of a valid environment variable.

Approved by:	re (blanket `env')
2005-06-20 03:14:29 +00:00
gad
4e1c4de27a Move the code that clears the environment when `-i' is specified, so it that
it does not happen until all single-letter options are processed.  This will
be important for the -S option, which will be coming soon.

Approved by:	re (blanket `env')
2005-06-20 03:09:49 +00:00
gad
cd436d6b80 Add a '-v' option to `env', to make it easier to discover exactly what steps
it is doing, and what order it does them.  This will be much more useful as
more options are added.

Approved by:	re (blanket `env')
2005-06-20 03:06:54 +00:00
ru
6cc4b6c220 Added the EXIT STATUS section where appropriate. 2005-01-17 07:44:44 +00:00
ru
bd0a8237ba Language and markup polishing. 2004-05-19 10:44:24 +00:00
schweikh
4550c31364 Fix grammar bogon. 2004-02-29 12:52:21 +00:00
ru
f2675c508e Removed (after the env(1)/printenv(1) split) extraneous arguments
to the .Nm macro.
2003-11-02 21:46:11 +00:00
tjr
dfd248ebc6 Split the env(1) manpage off from printenv(1); there is not much point
in keeping them together. Mention that printenv is obsolescent.
2003-06-01 06:29:47 +00:00
dwmalone
b4339b74ad ANSIify function definitions.
Add some constness to avoid some warnings.
Remove use register keyword.
Deal with missing/unneeded extern/prototypes.
Some minor type changes/casts to avoid warnings.

Reviewed by:	md5
2002-09-04 23:29:10 +00:00
tjr
c4f791d939 Discourage use of env(1)'s "-" flag by moving its description to the
Compatibility section of the manual page.
2002-06-28 09:23:39 +00:00
tjr
e03fb12529 Indicate that env(1) allows you to supply arguments to the utility it
executes in the usage() message and manual page. Use "utility" instead of
"command" in both places to emphasise that shell builtins etc. will not work,
and to be consistent with the terminology used by POSIX.

PR:		39210
Submitted by:	Danny J. Zerkel <dzerkel@columbus.rr.com>
MFC after:	1 week
2002-06-19 07:09:44 +00:00
imp
74d826c7a6 remove __P 2002-03-22 01:22:50 +00:00
mike
4232c22913 Leave the `copyright' variable exposed, since the main purpose of it
is to put a copyright in the object file.

Submitted by:	bde
2002-03-07 10:06:00 +00:00
mike
630fb4534b Use new ID scheme.
Fix env(1)'s exit status to conform with SUSv3.

Submitted by:	Tim Robbins <tim@robbins.dropbear.id.au>
MFC after:	2 weeks
2002-02-21 02:17:57 +00:00
markm
ae2558974f Remove leaf node WARNS?=2 (that mainly I added). This should
help the GCC3 transition and CURRENT in general.
2002-02-08 22:31:43 +00:00
dd
fdda055e00 Set WARNS=2 on programs that compile cleanly with it; add $FreeBSD$
where necessary.

Submitted by:	Mike Barcroft <mike@q9media.com>
2001-06-30 05:39:36 +00:00
sheldonh
0e8ead5c97 Add `-i'' option, which is the same as `-''. The -i option is the
recommended option in the manpage, but the - option remains for
backward compatibility and is documented as such.

PR:	13363
Reported by:	James Howard <howardjp@wam.umd.edu>
Reviewed by:	bde
1999-08-27 08:59:32 +00:00
archie
167c036e91 Tweaks to allow compiling -Wall (mostly adding "const" to char rcsid[]). 1998-12-06 22:58:23 +00:00
charnier
bcc829f0c5 Add usage(). 1997-06-30 06:51:20 +00:00
imp
141381e1cb compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.
1997-03-29 04:34:07 +00:00
rgrimes
f9ab90d9d6 BSD 4.4 Lite Usr.bin Sources 1994-05-27 12:33:43 +00:00