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Protect #include's of sys/socket.h and netdb.h.

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Only define struct addrinfo if !HAVE_STRUCT_ADDRINFO.  Protect
AI_* and EAI_* definitions.  Protect function declarations.
This commit is contained in:
Jim Meyering 2005-10-01 09:49:36 +00:00
parent e1170f4d9e
commit 8050751a86
1 changed files with 58 additions and 38 deletions
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96
lib/getaddrinfo.h
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@ -19,13 +19,21 @@
#ifndef GETADDRINFO_H
# define GETADDRINFO_H
/* Get getaddrinfo declarations, if available. Also get 'socklen_t',
and 'struct sockaddr' via sys/types.h which are used below. */
# include <sys/types.h>
# include <sys/socket.h>
# include <netdb.h>
/* Get all getaddrinfo related declarations, if available. */
# ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
# endif
# ifdef HAVE_NETDB_H
# include <netdb.h>
# endif
# if !HAVE_GETADDRINFO
# ifndef HAVE_STRUCT_ADDRINFO
/* Get 'socklen_t', and 'struct sockaddr' via sys/types.h which are
used below. */
# ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
# endif
/* Structure to contain information about address of a service provider. */
struct addrinfo
@ -39,38 +47,47 @@ struct addrinfo
char *ai_canonname; /* Canonical name for service location. */
struct addrinfo *ai_next; /* Pointer to next in list. */
};
/* Possible values for `ai_flags' field in `addrinfo' structure. */
# 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.. */
/* Error values for `getaddrinfo' function. */
# 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. */
# ifdef __USE_GNU
# 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
/* 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
# ifndef 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
@ -79,17 +96,20 @@ extern int getaddrinfo (const char *restrict nodename,
const char *restrict servname,
const struct addrinfo *restrict hints,
struct addrinfo **restrict res);
# endif
# ifndef 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
# ifndef 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 /* !HAVE_GETADDRINFO */
# endif
#endif /* GETADDRINFO_H */