src/usr.bin/cmp/regular.c, branch releng/12.2

MFC r344551:

2019-12-06T18:27:50Z

Fix handling of rights on stdio streams, take two. PR: 234885

General further adoption of SPDX licensing ID tags.

2017-11-20T19:49:47Z

Mainly focus on files that use BSD 3-Clause license. 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. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.

Renumber copyright clause 4

2017-02-28T23:42:47Z

Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann Pull Request: https://github.com/freebsd/freebsd/pull/96

Eliminate unneeded headers.

2011-06-21T20:44:06Z

Remove the advertising clause from UCB copyrighted files in usr.bin. This

2010-12-11T08:32:16Z

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

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

add __unused to succeed at WARNS=6

2008-07-10T13:26:46Z

The cmp utility has the questionable feature of using mmap when

2003-02-26T06:44:46Z

comparing regular files. Add a SIGSEGV handler to make its behavior less surprising when a read error occurs. The handler does not attempt to distinguish errors from file truncation, but anyone actively modifying a file while trying to compare it shouldn't even expect something sane to happen. PR: 45391 Reviewed by: mike (mentor)

ANSIify function definitions to avoid a warning.

2002-07-28T15:13:17Z