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gai_strerror() - Update string error messages according to RFC 3493. 

Error messages in gai_strerror(3) vary largely among OSs.

For new software we largely replaced the obsoleted EAI_NONAME and
with EAI_NODATA but we never updated the corresponding message to better
match the intended use. We also have references to ai_flags and ai_family
which are not very descriptive for non-developer end users.

Bring new new error messages based on informational RFC 3493, which has
obsoleted RFC 2553, and make them consistent among the header adn
manpage.

MFC after:	1 month
Differentical Revision:	D18630
This commit is contained in:
pfg 2018-12-23 18:15:48 +00:00 committed by Sebastian Huber
parent a9724c3904
commit 84ba60e6eb
1 changed files with 9 additions and 9 deletions
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18
newlib/libc/sys/rtems/include/netdb.h
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@ -159,24 +159,24 @@ struct addrinfo {
#define NO_ADDRESS NO_DATA /* no address, look for MX record */
/*
* Error return codes from getaddrinfo()
* Error return codes from gai_strerror(3), see RFC 3493.
*/
#if 0
/* obsoleted */
/* Obsoleted on RFC 2553bis-02 */
#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */
#endif
#define EAI_AGAIN 2 /* temporary failure in name resolution */
#define EAI_BADFLAGS 3 /* invalid value for ai_flags */
#define EAI_AGAIN 2 /* name could not be resolved at this time */
#define EAI_BADFLAGS 3 /* flags parameter had an invalid value */
#define EAI_FAIL 4 /* non-recoverable failure in name resolution */
#define EAI_FAMILY 5 /* ai_family not supported */
#define EAI_FAMILY 5 /* address family was recognized */
#define EAI_MEMORY 6 /* memory allocation failure */
#if 0
/* obsoleted */
/* Obsoleted on RFC 2553bis-02 */
#define EAI_NODATA 7 /* no address associated with hostname */
#endif
#define EAI_NONAME 8 /* hostname nor servname provided, or not known */
#define EAI_SERVICE 9 /* servname not supported for ai_socktype */
#define EAI_SOCKTYPE 10 /* ai_socktype not supported */
#define EAI_NONAME 8 /* name does not resolve */
#define EAI_SERVICE 9 /* service not recognized for socket type */
#define EAI_SOCKTYPE 10 /* intended socket type was not recognized */
#define EAI_SYSTEM 11 /* system error returned in errno */
#define EAI_BADHINTS 12 /* invalid value for hints */
#define EAI_PROTOCOL 13 /* resolved protocol is unknown */