ext/socket/getaddrinfo.c File Reference

#include "ruby/config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <ctype.h>
#include "addrinfo.h"
#include "sockport.h"

Include dependency graph for getaddrinfo.c:

Go to the source code of this file.

Data Structures
struct	sockinet
struct	afd
Defines
#define	SUCCESS   0
#define	ANY   0
#define	YES   1
#define	NO   0
#define	N_INET   0
#define	PTON_MAX   4
#define	GET_CANONNAME(ai, str)
#define	GET_AI(ai, afd, addr, port)
#define	ERR(err)   { error = (err); goto bad; }
Functions
static int get_name	__P ((const char *, const struct afd *, struct addrinfo **, char *, struct addrinfo *, int))
static int get_addr	__P ((const char *, int, struct addrinfo **, struct addrinfo *, int))
static int str_isnumber	__P ((const char *))
char *	gai_strerror (int ecode)
void	freeaddrinfo (struct addrinfo *ai)
static int	str_isnumber (const char *p)
static int	inet_pton (int af, const char *hostname, void *pton)
int	getaddrinfo (const char *hostname, const char *servname, const struct addrinfo *hints, struct addrinfo **res)
static int	get_name (const char *addr, const struct afd *afd, struct addrinfo **res, char *numaddr, struct addrinfo *pai, int port0)
static int	get_addr (const char *hostname, int af, struct addrinfo **res, struct addrinfo *pai, int port0)
Variables
static const char	in_addrany [] = { 0, 0, 0, 0 }
static const char	in6_addrany []
static const char	in_loopback [] = { 127, 0, 0, 1 }
static const char	in6_loopback []
static struct afd	afdl []
static const char *const	ai_errlist []

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Define Documentation

#define ANY   0

Definition at line 87 of file getaddrinfo.c.

Referenced by getaddrinfo().

#define ERR

(

err

)

{ error = (err); goto bad; }

Definition at line 195 of file getaddrinfo.c.

Referenced by curses_curs_set(), get_addr(), getaddrinfo(), and window_getbkgd().

#define GET_AI	(	ai,
		afd,
		addr,
		port		)

Value:

{\
        char *p;\
        if (((ai) = (struct addrinfo *)malloc(sizeof(struct addrinfo) +\
                                              ((afd)->a_socklen)))\
            == NULL) {\
                error = EAI_MEMORY;\
                goto free;\
        }\
        memcpy(ai, pai, sizeof(struct addrinfo));\
        (ai)->ai_addr = (struct sockaddr *)((ai) + 1);\
        memset((ai)->ai_addr, 0, (afd)->a_socklen);\
        SET_SA_LEN((ai)->ai_addr, (ai)->ai_addrlen = (afd)->a_socklen);\
        (ai)->ai_addr->sa_family = (ai)->ai_family = (afd)->a_af;\
        ((struct sockinet *)(ai)->ai_addr)->si_port = port;\
        p = (char *)((ai)->ai_addr);\
        memcpy(p + (afd)->a_off, (addr), (afd)->a_addrlen);\
}

Definition at line 177 of file getaddrinfo.c.

Referenced by get_addr(), get_name(), and getaddrinfo().

#define GET_CANONNAME	(	ai,
		str		)

Value:

if (pai->ai_flags & AI_CANONNAME) {\
        if (((ai)->ai_canonname = (char *)malloc(strlen(str) + 1)) != NULL) {\
                strcpy((ai)->ai_canonname, (str));\
        } else {\
                error = EAI_MEMORY;\
                goto free;\
        }\
}

Definition at line 167 of file getaddrinfo.c.

Referenced by get_addr(), and get_name().

#define N_INET   0

#define NO   0

Definition at line 89 of file getaddrinfo.c.

Referenced by str_isnumber().

#define PTON_MAX   4

Definition at line 139 of file getaddrinfo.c.

Referenced by getaddrinfo().

#define SUCCESS   0

Definition at line 86 of file getaddrinfo.c.

Referenced by get_name(), and getnameinfo().

#define YES   1

Definition at line 88 of file getaddrinfo.c.

Referenced by getaddrinfo(), and str_isnumber().

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Function Documentation

static int str_isnumber __P

(

(const char *)

)

[static]

static int get_addr __P

(

(const char *, int, struct addrinfo **, struct addrinfo *, int)

)

[static]

static int get_name __P

(

(const char *, const struct afd *, struct addrinfo **, char *, struct addrinfo *, int)

)

[static]

void freeaddrinfo

(

struct addrinfo *

ai

)

Definition at line 211 of file getaddrinfo.c.

References addrinfo::ai_canonname, addrinfo::ai_next, free, and NULL.

char* gai_strerror

(

int

ecode

)

Definition at line 202 of file getaddrinfo.c.

References EAI_MAX.

Referenced by rsock_raise_socket_error().

static int get_addr	(	const char *	hostname,
		int	af,
		struct addrinfo **	res,
		struct addrinfo *	pai,
		int	port0
	)			[static]

Definition at line 572 of file getaddrinfo.c.

References afd::a_af, AF_UNSPEC, afdl, addrinfo::ai_addr, AI_ADDRCONFIG, AI_ALL, addrinfo::ai_next, AI_V4MAPPED, bad, EAI_AGAIN, EAI_FAIL, EAI_NODATA, ERR, GET_AI, GET_CANONNAME, INET6, NULL, top, and u_short.

static int get_name	(	const char *	addr,
		const struct afd *	afd,
		struct addrinfo **	res,
		char *	numaddr,
		struct addrinfo *	pai,
		int	port0
	)			[static]

Definition at line 532 of file getaddrinfo.c.

References afd::a_addrlen, afd::a_af, free, freeaddrinfo, freehostent, GET_AI, GET_CANONNAME, NULL, SUCCESS, and u_short.

int getaddrinfo	(	const char *	hostname,
		const char *	servname,
		const struct addrinfo *	hints,
		struct addrinfo **	res
	)

Definition at line 267 of file getaddrinfo.c.

References afd::a_addrany, afd::a_af, afd::a_loopback, afdl, addrinfo::ai_addr, addrinfo::ai_addrlen, addrinfo::ai_canonname, addrinfo::ai_family, addrinfo::ai_flags, AI_MASK, addrinfo::ai_next, AI_NUMERICSERV, AI_PASSIVE, addrinfo::ai_protocol, addrinfo::ai_socktype, ANY, EAI_BADFLAGS, EAI_BADHINTS, EAI_FAMILY, EAI_NONAME, EAI_PROTOCOL, EAI_SERVICE, EAI_SOCKTYPE, ERR, GET_AI, getenv(), inet_pton(), IPPROTO_TCP, IPPROTO_UDP, NULL, PF_INET, PF_UNSPEC, proto, PTON_MAX, str_isnumber(), top, u_short, and YES.

static int inet_pton	(	int	af,
		const char *	hostname,
		void *	pton
	)			[static]

Definition at line 239 of file getaddrinfo.c.

References d1.

Referenced by getaddrinfo().

static int str_isnumber

(

const char *

p

)

[static]

Definition at line 225 of file getaddrinfo.c.

References NO, and YES.

Referenced by getaddrinfo().

---

Variable Documentation

struct afd afdl[] [static]

Referenced by get_addr(), getaddrinfo(), and getnameinfo().

const char* const ai_errlist[] [static]

Initial value:

 {
        "success.",
        "address family for hostname not supported.",   
        "temporary failure in name resolution.",        
        "invalid value for ai_flags.",                  
        "non-recoverable failure in name resolution.",  
        "ai_family not supported.",                     
        "memory allocation failure.",                   
        "no address associated with hostname.",         
        "hostname nor servname provided, or not known.",
        "servname not supported for ai_socktype.",      
        "ai_socktype not supported.",                   
        "system error returned in errno.",              
        "invalid value for hints.",                     
        "resolved protocol is unknown.",                
        "unknown error.",                               
}

Definition at line 149 of file getaddrinfo.c.

const char in6_addrany[] [static]

Initial value:

 {
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}

Definition at line 97 of file getaddrinfo.c.

const char in6_loopback[] [static]

Initial value:

 {
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
}

Definition at line 101 of file getaddrinfo.c.

const char in_addrany[] = { 0, 0, 0, 0 } [static]

Definition at line 96 of file getaddrinfo.c.

const char in_loopback[] = { 127, 0, 0, 1 } [static]

Definition at line 100 of file getaddrinfo.c.

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