src-test2/usr.bin/ipcs/ipc.c, branch releng/11.2

MFC r326276:

2018-03-05T07:26:05Z

various: general adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.

MFC r326361: Remove unused include.

2017-12-13T06:17:20Z

ipcs: fix builds that use gcc

2015-04-14T04:52:52Z

gcc gets annoyed by duplicate declarations Reported by: sbruno Reviewed by: sbruno

ipcs: fix warnings (WARNS=1 -> WARNS=6)

2015-04-13T19:58:11Z

- fix shadow warnings - change type from off_t to size_t which is more correct and avoids signed/unsigned compare - use new initializer format to avoid "missing values" warning Reviewed by: jhb

Spelling fixes for usr.bin/

2011-12-30T11:02:40Z

Remove semaphore map entry count "semmap" field and its tuning

2011-07-14T14:18:14Z

option that is highly recommended to be adjusted in too much documentation while doing nothing in FreeBSD since r2729 (rev 1.1). ipcs(1) needs to be recompiled as it is accessing _KERNEL private variables. Reviewed by: jhb (before comment change on linux code) Sponsored by: Sandvine Incorporated

Use %zu when printing size_t.

2011-07-11T05:50:24Z

MFC after: 1 month

Make the char *n_name member of struct nlist 'const'.

2010-06-10T14:19:51Z

This avoids errors or __DECONST() from places with higher WARNS levels. Adjust a local cache variable in ipcs to const as well to compile in the new world order. Suggested by: jhb Reviewed by: jhb, kib, brueffer (man)

Add the ability to clean up all shared memory segments which are

2007-12-25T00:52:24Z

unused in one go. From the original PR: I've observed that linux apps running under the linuxulator have a habit of leaving behind shared memory segments which are unused, but which eventually cause the system to run out of free segments and these apps will stop working. ipcrm(1) currently only allows removal of unused message queues, shared memory segments and semaphores on an individual basis, or those having a matching (non-zero) key. However it would often be convenient to just do a complete cleanup of everything, usually as root. PR: bin/118292 Submitted by: Callum Gibson Not reviewed by: grog@ Approved by: grog@