src/usr.bin/limits, branch releng/9.3

MFC r235211:

2012-05-18T00:00:46Z

General mdoc(7) and typo fixes. PR: 167696

MFC r230549:

2012-02-02T18:25:12Z

Add -P option to allow get and set limits for other processes. Submitted by: Andrey Zonov

Add link to rctl(8).

2011-04-10T10:17:01Z

Document -w for swapuse.

2011-04-05T07:56:40Z

PR: docs/156089 Submitted by: Andrey Ignatov MFC after: 1 week

Build usr.bin/ with WARNS=6 by default.

2010-01-02T10:27:05Z

Also add some missing $FreeBSD$ to keep svn happy.

Revert most part of 200420 as requested, as more review and polish is

2009-12-13T03:14:06Z

needed.

Remove unneeded header includes from usr.bin/ except contributed code.

2009-12-11T23:35:38Z

Tested with: make universe

Usermode portion of the support for swap allocation accounting:

2009-06-23T20:57:27Z

- update for getrlimit(2) manpage; - support for setting RLIMIT_SWAP in login class; - addition to the limits(1) and sh and csh limit-setting builtins; - tuning(7) documentation on the sysctls controlling overcommit. In collaboration with: pho Reviewed by: alc Approved by: re (kensmith)

Add support for RLIMIT_NPTS to limits(1).

2008-09-02T19:13:24Z

After the MPSAFE TTY import we support an additional rlimit, called RLIMIT_NPTS. This limit allows you to cap the amount of pseudo-terminals allocated by one user. We forgot to add support for this limit to limits(1), which means it crashed. Add the proper bits to make it work like it should. Unfortunately not all shells actually implement the RLIMIT, so unfortunately I suspect it to be broken with certain shells. Submitted by: Yuriy Tsibizov

Significantly reduce the memory leak as noted in BUGS section for

2007-07-04T00:00:41Z

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)