mirror of
https://github.com/coreutils/coreutils.git
synced 2024-12-11 10:53:42 +08:00
111 lines
4.5 KiB
C
111 lines
4.5 KiB
C
/* Get address information.
|
|
Copyright (C) 1996-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
|
|
Contributed by Simon Josefsson <simon@josefsson.org>.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software Foundation,
|
|
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
|
|
|
|
#ifndef GETADDRINFO_H
|
|
# define GETADDRINFO_H
|
|
|
|
/* sys/socket.h in i386-unknown-freebsd4.10 and
|
|
powerpc-apple-darwin5.5 require sys/types.h, so include it first.
|
|
Then we'll also get 'socklen_t' and 'struct sockaddr' which are
|
|
used below. */
|
|
# include <sys/types.h>
|
|
/* Get all getaddrinfo related declarations, if available. */
|
|
# include <sys/socket.h>
|
|
# include <netdb.h>
|
|
|
|
# ifndef HAVE_STRUCT_ADDRINFO
|
|
|
|
/* Structure to contain information about address of a service provider. */
|
|
struct addrinfo
|
|
{
|
|
int ai_flags; /* Input flags. */
|
|
int ai_family; /* Protocol family for socket. */
|
|
int ai_socktype; /* Socket type. */
|
|
int ai_protocol; /* Protocol for socket. */
|
|
socklen_t ai_addrlen; /* Length of socket address. */
|
|
struct sockaddr *ai_addr; /* Socket address for socket. */
|
|
char *ai_canonname; /* Canonical name for service location. */
|
|
struct addrinfo *ai_next; /* Pointer to next in list. */
|
|
};
|
|
# endif
|
|
|
|
/* Possible values for `ai_flags' field in `addrinfo' structure. */
|
|
# ifndef AI_PASSIVE
|
|
# define AI_PASSIVE 0x0001 /* Socket address is intended for `bind'. */
|
|
# define AI_CANONNAME 0x0002 /* Request for canonical name. */
|
|
# define AI_NUMERICHOST 0x0004 /* Don't use name resolution. */
|
|
# define AI_V4MAPPED 0x0008 /* IPv4 mapped addresses are acceptable. */
|
|
# define AI_ALL 0x0010 /* Return IPv4 mapped and IPv6 addresses. */
|
|
# define AI_ADDRCONFIG 0x0020 /* Use configuration of this host to choose
|
|
returned address type.. */
|
|
# endif
|
|
|
|
/* Error values for `getaddrinfo' function. */
|
|
# ifndef EAI_BADFLAGS
|
|
# define EAI_BADFLAGS -1 /* Invalid value for `ai_flags' field. */
|
|
# define EAI_NONAME -2 /* NAME or SERVICE is unknown. */
|
|
# define EAI_AGAIN -3 /* Temporary failure in name resolution. */
|
|
# define EAI_FAIL -4 /* Non-recoverable failure in name res. */
|
|
# define EAI_NODATA -5 /* No address associated with NAME. */
|
|
# define EAI_FAMILY -6 /* `ai_family' not supported. */
|
|
# define EAI_SOCKTYPE -7 /* `ai_socktype' not supported. */
|
|
# define EAI_SERVICE -8 /* SERVICE not supported for `ai_socktype'. */
|
|
# define EAI_ADDRFAMILY -9 /* Address family for NAME not supported. */
|
|
# define EAI_MEMORY -10 /* Memory allocation failure. */
|
|
# define EAI_SYSTEM -11 /* System error returned in `errno'. */
|
|
# define EAI_OVERFLOW -12 /* Argument buffer overflow. */
|
|
# endif
|
|
|
|
# ifdef __USE_GNU
|
|
# ifndef EAI_INPROGRESS
|
|
# define EAI_INPROGRESS -100 /* Processing request in progress. */
|
|
# define EAI_CANCELED -101 /* Request canceled. */
|
|
# define EAI_NOTCANCELED -102 /* Request not canceled. */
|
|
# define EAI_ALLDONE -103 /* All requests done. */
|
|
# define EAI_INTR -104 /* Interrupted by a signal. */
|
|
# define EAI_IDN_ENCODE -105 /* IDN encoding failed. */
|
|
# endif
|
|
# endif
|
|
|
|
# if !HAVE_DECL_GETADDRINFO
|
|
/* Translate name of a service location and/or a service name to set of
|
|
socket addresses.
|
|
For more details, see the POSIX:2001 specification
|
|
<http://www.opengroup.org/susv3xsh/getaddrinfo.html>. */
|
|
extern int getaddrinfo (const char *restrict nodename,
|
|
const char *restrict servname,
|
|
const struct addrinfo *restrict hints,
|
|
struct addrinfo **restrict res);
|
|
# endif
|
|
|
|
# if !HAVE_DECL_FREEADDRINFO
|
|
/* Free `addrinfo' structure AI including associated storage.
|
|
For more details, see the POSIX:2001 specification
|
|
<http://www.opengroup.org/susv3xsh/getaddrinfo.html>. */
|
|
extern void freeaddrinfo (struct addrinfo *ai);
|
|
# endif
|
|
|
|
# if !HAVE_DECL_GAI_STRERROR
|
|
/* Convert error return from getaddrinfo() to a string.
|
|
For more details, see the POSIX:2001 specification
|
|
<http://www.opengroup.org/susv3xsh/gai_strerror.html>. */
|
|
extern const char *gai_strerror (int ecode);
|
|
# endif
|
|
|
|
#endif /* GETADDRINFO_H */
|