src-test2/lib/libc/inet, branch release/11.4.0

MFC r337422:

2018-08-21T01:17:28Z

libc: fix cases of undefined behavior. These were found by the Undefined Behavior GsoC project at NetBSD: Avoid undefined behavior in ftok(3) Do not change the signedness bit with a left shift operation. Cast to unsigned integer to prevent this. ftok.c:56:10, left shift of 123456789 by 24 places cannot be represented in type 'int' ftok.c:56:10, left shift of 4160 by 24 places cannot be represented in type 'int' Avoid undefined behavior in an inet_addr.c Do not change the signedness bit with a left shift operation. Cast to unsigned integer to prevent this. inet_addr.c:218:20, left shift of 131 by 24 places cannot be represented in type 'int' Detected with micro-UBSan in the user mode. Obtained from: NetBSD

Revert r330897:

2018-03-29T02:50:57Z

This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code. Revert with prejudice. This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes. Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes. Requested by: gjb (re)

Partial merge of the SPDX changes

2018-03-14T03:19:51Z

These changes are incomplete but are making it difficult to determine what other changes can/should be merged. No objections from: pfg

libc: do not include where was already included

2016-04-18T21:05:15Z

According to style(9): > normally, include OR , but not both. ( already includes when LOCORE is not defined).

Use ANSI C prototypes. Eliminates -Wold-style-definition warnings.

2015-09-20T20:50:56Z

Update our stub resolver to final version of libbind.

2014-08-12T12:36:06Z

Obtained from: ISC

Bring final version of libbind:

2014-08-05T23:16:31Z

From http://www.isc.org/downloads/libbind/ The libbind functions have been separated from the BIND suite as of BIND 9.6.0. Originally from older versions of BIND, they have been continually maintained and improved but not installed by default with BIND 9. This standard resolver library contains the same historical functions and headers included with many Unix operating systems. In fact, most implementations are based on the same original code. At present, NetBSD maintains libbind code, now known as "netresolv".

Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP}

2014-03-04T02:19:39Z

if not already defined. This allows building libc from outside of lib/libc using a reach-over makefile. A typical use-case is to build a standard ILP32 version and a COMPAT32 version in a single iteration by building the COMPAT32 version using a reach-over makefile. Obtained from: Juniper Networks, Inc.

Set errno on inet_ntop(3) failure.

2014-02-07T15:26:19Z

Reviewed by: glebius

Merge the resolver part of BIND 9.4.3 into HEAD.

2008-12-14T19:39:53Z

It includes the following fix: 2426. [bug] libbind: inet_net_pton() can sometimes return the wrong value if excessively large netmasks are supplied. [RT #18512] Reported by: Maksymilian Arciemowicz