openbsd/src/lib/libc/net/getaddrinfo.3, branch OPENBSD_7_9A mirror of https://github.com/libressl/openbsd.git
https://git.lua4.win/openbsd/atom?h=OPENBSD_7_92025-12-08T13:30:08+00:00Do not crash when calling freeaddrinfo(NULL)2025-12-08T13:30:08+00:00jca2025-12-08T13:30:08+00:00urn:sha1:2a9ce651b1c5e84f70570a283e2a5ccd1e14eb25
Supported by Linux since at least 1997, and FreeBSD since 2017. While
not defined, there's no real good reason to crash when we could just
cope. Indeed, software out there relies on the Linux behavior.
Point out in the manpage that the behavior of getaddrinfo(NULL) isn't
defined and thus isn't portable.
Edge case spotted recently by kn@ in OpenVPN.
ok millert@ djm@ deraadt@ kn@
.Li -> .Vt where appropriate;2022-09-11T06:38:11+00:00jmc2022-09-11T06:38:11+00:00urn:sha1:62590e3e551e5acaf5ee4726dac3ed5fadbdf680
from josiah frentsos, tweaked by schwarze
ok schwarze
man pages: add missing commas between subordinate and main clauses2022-03-31T17:27:26+00:00naddy2022-03-31T17:27:26+00:00urn:sha1:3d8be07546f5ec331a0f851b0ea88212376ebb95
jmc@ dislikes a comma before "then" in a conditional, so leave those
untouched.
ok jmc@
mop up resolver.3 rename; ok deraadt2019-08-30T20:20:51+00:00jmc2019-08-30T20:20:51+00:00urn:sha1:b0f0fa2ffa3c9540cfd08821cf6c83d4254ea762Prefer AF_* over PF_* and 'address family' over 'protocol family'2016-05-29T06:01:24+00:00guenther2016-05-29T06:01:24+00:00urn:sha1:4748ef406f88568af5dc81963f80fcb0ba56c02a
ok jung@
Amend documentation for AI_ADDRCONFIG2015-02-16T18:26:56+00:00jca2015-02-16T18:26:56+00:00urn:sha1:58bde4fa4a15911047530f107de916640d13df1d
ok jmc@
unbind;2014-08-23T07:25:54+00:00jmc2014-08-23T07:25:54+00:00urn:sha1:0da35c5527cadb4d9d5c40167d67c630c96b3878Implement AI_ADDRCONFIG2014-04-28T21:38:59+00:00sperreault2014-04-28T21:38:59+00:00urn:sha1:ec9a5fc41d280c06d7d1f5aeb5fe576939499b56
This is a getaddrinfo() flag that is defined thusly in RFC 3493:
If the AI_ADDRCONFIG flag is specified, IPv4 addresses shall be
returned only if an IPv4 address is configured on the local system,
and IPv6 addresses shall be returned only if an IPv6 address is
configured on the local system. The loopback address is not
considered for this case as valid as a configured address.
For example, when using the DNS, a query for AAAA records should
occur only if the node has at least one IPv6 address configured
(other than IPv6 loopback) and a query for A records should occur
only if the node has at least one IPv4 address configured (other
than the IPv4 loopback).
The flag is set by default when hints is NULL.
ok Eric Faurot, Jason McIntyre
obvious .Pa fixes; found with mandocdb(8)2014-01-21T03:15:45+00:00schwarze2014-01-21T03:15:45+00:00urn:sha1:d60d9234a28e0f31b490cea083e7015beaee4f1bUse the fancy .In macro for includes. From Jan Klemkow. ok jmc schwarze2013-06-05T03:39:23+00:00tedu2013-06-05T03:39:23+00:00urn:sha1:2b7c3ac1a78656e1ad7e45f24ecbff6f63f289e4