src-test/lib/libutil, branch stable/7

MFC r273837:

2014-11-01T13:45:01Z

Fix a clang 3.5 warning about abs(3) being given an argument of type quad_t in setusercontext(). While here, sanitize the clamping of the priority value, and use the correct type for the return value of login_getcapnum(). Reviewed by: kib

MFC r231306:

2012-03-19T01:52:09Z

Fix NULL ptr dereference in setusercontext if pwd is null, LOGIN_SETPRIORITY is set, and setting the priority (rtprio or setpriority) fails. PR: kern/164238 Approved by: cperciva

MFC r219939:

2011-04-22T00:32:16Z

humanize_number(3) multiply the input number by 100, which could cause an integer overflow when the input is very large (for example, 100 Pi would become about 10 Ei which exceeded signed int64_t). Solve this issue by splitting the division into two parts and avoid the multiplication. PR: bin/146205 Reviewed by: arundel

MFC 219850:

2011-04-06T11:14:42Z

s/buffer/buf as is used in the code.

MFC r211393 (by des):

2010-09-24T23:48:29Z

In setusercontext(), do not apply user settings unless running as the user in question (usually but not necessarily because we were called with LOGIN_SETUSER). This plugs a hole where users could raise their resource limits and expand their CPU mask. Approved by: des

Merge from head to stable/7:

2009-12-18T20:08:29Z

r200423: Remove a dead store.

MFC: Note that these routines return NULL on failure and that the

2009-06-16T13:39:09Z

structures they return arrays of are defined in .

MFC: Add manpages for kinfo_getfile() and kinfo_getvmmap().

2009-06-12T15:53:56Z

merge r173719: constify expand_number(3).

2009-06-10T14:52:34Z

merge r180815,184081-184088,184091-184094,184634,184676-184677, 185277,

2009-06-09T01:43:58Z

93589,193591: style and warning cleanups, libutil is now WARNS=6 clean. Also merged setclasscpumask(), which would have been a b***h to isolate from the rest of the changes. AFAICT, nobody uses it anyway.