93 lines
2.4 KiB
Groff
93 lines
2.4 KiB
Groff
.\" $KAME: gai_strerror.3,v 1.1 2005/01/05 03:04:47 itojun Exp $
|
|
.\" $OpenBSD: gai_strerror.3,v 1.4 2004/12/20 23:04:53 millert Exp $
|
|
.\"
|
|
.\" Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
|
|
.\" Copyright (C) 2000, 2001 Internet Software Consortium.
|
|
.\"
|
|
.\" Permission to use, copy, modify, and distribute this software for any
|
|
.\" purpose with or without fee is hereby granted, provided that the above
|
|
.\" copyright notice and this permission notice appear in all copies.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
|
|
.\" REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
.\" AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
|
|
.\" INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
|
.\" LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
|
|
.\" OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
.\" PERFORMANCE OF THIS SOFTWARE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 21, 2006
|
|
.Dt GAI_STRERROR 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm gai_strerror
|
|
.Nd get error message string from EAI_xxx error code
|
|
.Sh SYNOPSIS
|
|
.In sys/types.h
|
|
.In sys/socket.h
|
|
.In netdb.h
|
|
.Ft "const char *"
|
|
.Fn gai_strerror "int ecode"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn gai_strerror
|
|
function returns an error message string corresponding to the error code
|
|
returned by
|
|
.Xr getaddrinfo 3
|
|
or
|
|
.Xr getnameinfo 3 .
|
|
.Pp
|
|
The following error codes and their meaning are defined in
|
|
.In netdb.h :
|
|
.Pp
|
|
.Bl -tag -width ".Dv EAI_BADFLAGS" -offset indent -compact
|
|
.It Dv EAI_AGAIN
|
|
temporary failure in name resolution
|
|
.It Dv EAI_BADFLAGS
|
|
invalid value for
|
|
.Fa ai_flags
|
|
.It Dv EAI_BADHINTS
|
|
invalid value for
|
|
.Fa hints
|
|
.It Dv EAI_FAIL
|
|
non-recoverable failure in name resolution
|
|
.It Dv EAI_FAMILY
|
|
.Fa ai_family
|
|
not supported
|
|
.It Dv EAI_MEMORY
|
|
memory allocation failure
|
|
.It Dv EAI_NONAME
|
|
.Fa hostname
|
|
or
|
|
.Fa servname
|
|
not provided, or not known
|
|
.It Dv EAI_OVERFLOW
|
|
argument buffer overflow
|
|
.It Dv EAI_PROTOCOL
|
|
resolved protocol is unknown
|
|
.It Dv EAI_SERVICE
|
|
.Fa servname
|
|
not supported for
|
|
.Fa ai_socktype
|
|
.It Dv EAI_SOCKTYPE
|
|
.Fa ai_socktype
|
|
not supported
|
|
.It Dv EAI_SYSTEM
|
|
system error returned in
|
|
.Va errno
|
|
.El
|
|
.Sh RETURN VALUES
|
|
The
|
|
.Fn gai_strerror
|
|
function
|
|
returns a pointer to the error message string corresponding to
|
|
.Fa ecode .
|
|
If
|
|
.Fa ecode
|
|
is out of range, an implementation-specific error message string is returned.
|
|
.Sh SEE ALSO
|
|
.Xr getaddrinfo 3 ,
|
|
.Xr getnameinfo 3
|