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gai_strerror.[c3]: re-enable EAI_ADDRFAMILY, EAI_NODATA
gai_strerror.c still has messages for EAI_ADDRFAMILY and EAI_NODATA,
but not the man page. Re-add to the man page, and update comments
in the source. Document the errors that are not in RFC 3493 or
POSIX.
Reviewed in https://reviews.freebsd.org/D37139 with related changes.
Reviewed by: bz, pauamma
(cherry picked from commit e34adc71d3
)
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870d2ff305
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@ -18,7 +18,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 23, 2018
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.Dd November 2, 2022
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.Dt GAI_STRERROR 3
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.Os
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.Sh NAME
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@ -42,7 +42,9 @@ or
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The following error codes and their meaning are defined in
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.In netdb.h :
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.Pp
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.Bl -tag -width ".Dv EAI_BADFLAGS" -offset indent -compact
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.Bl -tag -width ".Dv EAI_ADDRFAMILY" -offset indent -compact
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.It Dv EAI_ADDRFAMILY
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Address family for hostname not supported
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.It Dv EAI_AGAIN
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Name could not be resolved at this time
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.It Dv EAI_BADFLAGS
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@ -56,6 +58,8 @@ Non-recoverable failure in name resolution
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Address family was not recognized
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.It Dv EAI_MEMORY
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Memory allocation failure
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.It Dv EAI_NODATA
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No address associated with hostname
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.It Dv EAI_NONAME
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Name does not resolve
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.It Dv EAI_OVERFLOW
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@ -83,7 +87,14 @@ is out of range, an implementation-specific error message string is returned.
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.Xr getaddrinfo 3 ,
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.Xr getnameinfo 3
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.Sh STANDARDS
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.Bl -tag -width ".It RFC 2743"
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.Bl -tag -width ".It RFC 3493"
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.It RFC 3493
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Basic Socket Interface Extensions for IPv6
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.El
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.Pp
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EAI_ADDRFAMILY and EAI_NODATA were in previous RFCs, but not in RFC 3493.
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They are not in POSIX (IEEE Std 1003.1-2017).
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They were in
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.Fx
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before 5.2, and were re-added for 14.0.
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EAI_BADHINTS, EAI_OVERFLOW, and EAI_PROTOCOL are not in RFC 3493 or POSIX.
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@ -44,17 +44,19 @@ __FBSDID("$FreeBSD$");
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#endif
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#include "un-namespace.h"
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/* Entries EAI_ADDRFAMILY (1) and EAI_NODATA (7) are obsoleted, but left */
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/* for backwards compatibility with userland code prior to RFC2553bis-02 */
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/*
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* Entries EAI_ADDRFAMILY (1) and EAI_NODATA (7) were omitted from RFC 3493,
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* but are or may be used as extensions or in old code.
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*/
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static const char *ai_errlist[] = {
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"Success", /* 0 */
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"Address family for hostname not supported", /* 1: Obsolete */
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"Address family for hostname not supported", /* EAI_ADDRFAMILY */
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"Name could not be resolved at this time", /* EAI_AGAIN */
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"Flags parameter had an invalid value", /* EAI_BADFLAGS */
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"Non-recoverable failure in name resolution", /* EAI_FAIL */
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"Address family not recognized", /* EAI_FAMILY */
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"Memory allocation failure", /* EAI_MEMORY */
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"No address associated with hostname", /* 7: Obsolete*/
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"No address associated with hostname", /* EAI_NODATA*/
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"Name does not resolve", /* EAI_NONAME */
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"Service was not recognized for socket type", /* EAI_SERVICE */
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"Intended socket type was not recognized", /* EAI_SOCKTYPE */
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