POSIX also declares NI_NUMERICSCOPE, which makes getnameinfo() return a
numerical scope identifier. The interesting thing is that support for
this is already present in code, but #ifdef disabled. Expose this
functionality by placing a definition for it in <netdb.h>.
While there, remove references to NI_WITHSCOPEID, as that got removed 11
years ago.
- In a PF_LOCAL address, "hostname" must begins with '/' and "servname"
is always NULL. All of ai_flags are ignored.
- PF_UNSPEC matches PF_LOCAL. EAI_SERVICE is not returned to make
AF-independent programming easier; "servname" is always ignored
in PF_LOCAL. In practice, PF_INET* and PF_LOCAL are
mutually-exclusive because a hostname which begins with '/' is invalid
in PF_INET*. No domain name resolution is performed for a PF_LOCAL address.
Differential Revision: https://reviews.freebsd.org/D3634
the buffer. (n == hostlen) also means the buffer length was
too short.
- Use sdl->sdl_data only when (sdl->sdl_nlen > 0 && sdl->sdl_alen == 0)
to prevent redundant output.
have chosen different (and more traditional) stateless/statuful
NAT64 as translation mechanism. Last non-trivial commits to both
faith(4) and faithd(8) happened more than 12 years ago, so I assume
it is time to drop RFC3142 in FreeBSD.
No objections from: net@
in FreeBSD, and originated from INRIA IPv6.
Stub out netstat reference to addr2ascii() I mistakenly introduced.
Update misleading man page sections.
Merge NetBSD's getnameinfo() AF_LINK extensions for a portable way to
print link-layer addresses given a sockaddr_dl(), minus the IEEE 1394
bits which don't map directly to our code.
Obtained from: NetBSD (getnameinfo.c)
Discussed on: current (March 2006)
getnameinfo(3). POSIX standard does not require a sa_len field
in sockaddr struct, hence such requirement will cause problem
for portability.
PR: standards/80008
Requested by: Xin Liu <lx@knight.6test.edu.cn>
Reviewed by: freebsd-standards (das)
MFC After: 2 weeks
technique) so that we don't wind up calling into an application's
version if the application defines them.
Inspired by: qpopper's interfering and buggy version of strlcpy
- use strlcpy.
- snprintf can return negative value, so cope with it.
- tweak interface index on interface locals (ff01::/16).
- removed unused macros.
- removed a macro that uses only once (in a trivial context).
- explicitly say goodbye to ENI_xxx.
- constify struct afd.
Obtained from: KAME
MFC after: 1 week
- permit numeric scopeid, be more careful about buffer size
TODO: 2nd arg type should be socklen_t for RFC2553 conformance,
but due to include file dependency it is not a easy thing to do
(netdb.h does not have socklen_t)
Sorry for the flapping, but no change will be done for 4.0 anymore.
Official standard will be published around April or later.
If different format would be adopted at that time, then support for
the new format will be added to the succeeding FreeBSD 4.x.
Approved by: jkh
KAME scoped addr format is changed recently.
before: addr@scope
now: scope%addr
Because the end of IPv6 numeric addr is tend to be truncated in
`netstat -rn ` output, so placing scope part at starting of addr
will be convenient.
Approved by: jkh
Obtained from: KAME project
