src/include/netdb.h, branch release/5.4.0

MFC: implement AI_NUMERICSERV (as defined in RFC3493).

2005-02-03T07:47:55Z

src/include/netdb.h: 1.33 src/lib/libc/net/getaddrinfo.c: 1.56

Make the resolver(3) and many associated interfaces much more reentrant.

2004-02-25T21:03:46Z

The getaddrinfo(3), getipnodebyname(3) and resolver(3) can coincide now with what should be totally reentrant, and h_errno values will now be preserved correctly, but this does not affect interfaces such as gethostbyname(3) which are still mostly non-reentrant. In all of these relevant functions, the thread-safety has been pushed down as far as it seems possible right now. This means that operations that are selected via nsdispatch(3) (i.e. files, yp, dns) are protected still under global locks that getaddrinfo(3) defines, but where possible the locking is greatly reduced. The most noticeable improvement is that multiple DNS lookups can now be run at the same time, and this shows major improvement in performance of DNS-lookup threaded programs, and solves the "Mozilla tab serialization" problem. No single-threaded applications need to be recompiled. Multi-threaded applications that reference "_res" to change resolver(3) options will need to be recompiled, and ones which reference "h_errno" will also if they desire the correct h_errno values. If the applications already understood that _res and h_errno were not thread-safe and had their own locking, they will see no performance improvement but will not actually break in any way. Please note that when NSS modules are used, or when nsdispatch(3) defaults to adding any lookups of its own to the individual libc _nsdispatch() calls, those MUST be reentrant as well.

remove EAI_NODATA aliased to EAI_NONAME.

2004-01-15T15:10:02Z

PR: bin/61369

style.

2003-10-24T06:53:12Z

Reported by: bde

oops, EAI_NONAME is not EAINONAME.

2003-10-24T03:49:38Z

workaround to have backward compatibility for EAI_NODATA.

2003-10-23T17:54:17Z

it will be removed on 23 Apr 2004. Submitted by: terry

oops, I forget to diable EAI_ADDRFAMILY and EAI_NODATA.

2003-10-23T16:11:46Z

stop use of NI_WITHSCOPEID. it was deprecated.

2003-10-21T20:11:47Z

Obtained from: KAME

o Merge and into a new header

2002-08-21T16:20:02Z

called . o will continue to live so it can define MD clock macros, which are only MD because of gratuitous differences between architectures. o Change all headers to make use of this. This mainly involves changing: #ifdef _BSD_FOO_T_ typedef _BSD_FOO_T_ foo_t; #undef _BSD_FOO_T_ #endif to: #ifndef _FOO_T_DECLARED typedef __foo_t foo_t; #define _FOO_T_DECLARED #endif Concept by: bde Reviewed by: jake, obrien

Minor libc internal-only interface change for mapv4v6.

2002-06-26T08:18:42Z