src/lib/libc/stdlib/reallocf.c, branch releng/13.1

Regularize my copyright notice

2019-12-04T16:56:11+00:00

o Remove All Rights Reserved from my notices
o imp@FreeBSD.org everywhere
o regularize punctiation, eliminate date ranges
o Make sure that it's clear that I don't claim All Rights reserved by listing
  All Rights Reserved on same line as other copyright holders (but not
  me). Other such holders are also listed last where it's clear.

libc: further adoption of SPDX licensing ID tags.

2017-11-25T17:12:48+00:00

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified 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.

In reallocf(3), free the memory only when size != 0. Otherwise, when the

2010-03-03T15:43:26+00:00

System V compatibility option (malloc "V" flag) is in effect a zero sized
reallocf() could cause a double free.

PR:		bin/141753
Submitted by:	Dan Lukes

Fix the style of the SCM ID's.

2002-03-22T21:53:29+00:00

I believe have made all of libc .c's as consistent as possible.

$Id$ -> $FreeBSD$

1999-08-28T00:22:10+00:00

Fix style problems noted by Bruce:

1998-09-16T03:16:06+00:00

	o No copyright on reallocf.
	o Order makefile list correctly.
	o indent reallocf properly.

Add reallocf to the library. This function is simliar to realloc, but

1998-09-14T20:34:34+00:00

when it returns NULL to indicate failure, it will also free the memory
that was passed to it, if that was non-null.

This does not change the semantics of realloc.

A second commit will be done to commit the conversion of those places in
the code that can safely use this to avoid memory leaks when confronted
with low memory situations.

Beaten-to-death-but-finally-approved-in: -current