/* $Id$ */
/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2007 by Daniel Stenberg
*
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
#ifndef ARES__H
#define ARES__H
+/*
+ * Define WIN32 when build target is Win32 API
+ */
+
+#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
+#define WIN32
+#endif
+
#include <sys/types.h>
-#ifdef _AIX
+#if defined(_AIX) || (defined(NETWARE) && defined(__NOVELL_LIBC__))
/* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
libc5-based Linux systems. Only include it on system that are known to
require it! */
#include <sys/select.h>
#endif
+#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
+#include <sys/bsdskt.h>
+#endif
-#ifdef WIN32
-#include <winsock.h>
-#include <windows.h>
+#if defined(WATT32)
+ #include <netinet/in.h>
+ #include <sys/socket.h>
+ #include <tcp.h>
+#elif defined(WIN32)
+# ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+# endif
+# include <windows.h>
+# include <winsock2.h>
+# include <ws2tcpip.h>
#else
-#include <netinet/in.h>
+ #include <netinet/in.h>
+ #include <sys/socket.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
#endif
-#define ARES_SUCCESS 0
+#define ARES_SUCCESS 0
/* Server error codes (ARES_ENODATA indicates no relevant answer) */
-#define ARES_ENODATA 1
-#define ARES_EFORMERR 2
-#define ARES_ESERVFAIL 3
-#define ARES_ENOTFOUND 4
-#define ARES_ENOTIMP 5
-#define ARES_EREFUSED 6
+#define ARES_ENODATA 1
+#define ARES_EFORMERR 2
+#define ARES_ESERVFAIL 3
+#define ARES_ENOTFOUND 4
+#define ARES_ENOTIMP 5
+#define ARES_EREFUSED 6
/* Locally generated error codes */
-#define ARES_EBADQUERY 7
-#define ARES_EBADNAME 8
-#define ARES_EBADFAMILY 9
-#define ARES_EBADRESP 10
-#define ARES_ECONNREFUSED 11
-#define ARES_ETIMEOUT 12
-#define ARES_EOF 13
-#define ARES_EFILE 14
-#define ARES_ENOMEM 15
-#define ARES_EDESTRUCTION 16
-#define ARES_EBADSTR 17
+#define ARES_EBADQUERY 7
+#define ARES_EBADNAME 8
+#define ARES_EBADFAMILY 9
+#define ARES_EBADRESP 10
+#define ARES_ECONNREFUSED 11
+#define ARES_ETIMEOUT 12
+#define ARES_EOF 13
+#define ARES_EFILE 14
+#define ARES_ENOMEM 15
+#define ARES_EDESTRUCTION 16
+#define ARES_EBADSTR 17
+
+/* ares_getnameinfo error codes */
+#define ARES_EBADFLAGS 18
+
+/* ares_getaddrinfo error codes */
+#define ARES_ENONAME 19
+#define ARES_EBADHINTS 20
/* Flag values */
-#define ARES_FLAG_USEVC (1 << 0)
-#define ARES_FLAG_PRIMARY (1 << 1)
-#define ARES_FLAG_IGNTC (1 << 2)
-#define ARES_FLAG_NORECURSE (1 << 3)
-#define ARES_FLAG_STAYOPEN (1 << 4)
-#define ARES_FLAG_NOSEARCH (1 << 5)
-#define ARES_FLAG_NOALIASES (1 << 6)
-#define ARES_FLAG_NOCHECKRESP (1 << 7)
+#define ARES_FLAG_USEVC (1 << 0)
+#define ARES_FLAG_PRIMARY (1 << 1)
+#define ARES_FLAG_IGNTC (1 << 2)
+#define ARES_FLAG_NORECURSE (1 << 3)
+#define ARES_FLAG_STAYOPEN (1 << 4)
+#define ARES_FLAG_NOSEARCH (1 << 5)
+#define ARES_FLAG_NOALIASES (1 << 6)
+#define ARES_FLAG_NOCHECKRESP (1 << 7)
/* Option mask values */
-#define ARES_OPT_FLAGS (1 << 0)
-#define ARES_OPT_TIMEOUT (1 << 1)
-#define ARES_OPT_TRIES (1 << 2)
-#define ARES_OPT_NDOTS (1 << 3)
-#define ARES_OPT_UDP_PORT (1 << 4)
-#define ARES_OPT_TCP_PORT (1 << 5)
-#define ARES_OPT_SERVERS (1 << 6)
-#define ARES_OPT_DOMAINS (1 << 7)
-#define ARES_OPT_LOOKUPS (1 << 8)
+#define ARES_OPT_FLAGS (1 << 0)
+#define ARES_OPT_TIMEOUT (1 << 1)
+#define ARES_OPT_TRIES (1 << 2)
+#define ARES_OPT_NDOTS (1 << 3)
+#define ARES_OPT_UDP_PORT (1 << 4)
+#define ARES_OPT_TCP_PORT (1 << 5)
+#define ARES_OPT_SERVERS (1 << 6)
+#define ARES_OPT_DOMAINS (1 << 7)
+#define ARES_OPT_LOOKUPS (1 << 8)
+#define ARES_OPT_SOCK_STATE_CB (1 << 9)
+#define ARES_OPT_SORTLIST (1 << 10)
+#define ARES_OPT_SOCK_SNDBUF (1 << 11)
+#define ARES_OPT_SOCK_RCVBUF (1 << 12)
+#define ARES_OPT_TIMEOUTMS (1 << 13)
+
+/* Nameinfo flag values */
+#define ARES_NI_NOFQDN (1 << 0)
+#define ARES_NI_NUMERICHOST (1 << 1)
+#define ARES_NI_NAMEREQD (1 << 2)
+#define ARES_NI_NUMERICSERV (1 << 3)
+#define ARES_NI_DGRAM (1 << 4)
+#define ARES_NI_TCP 0
+#define ARES_NI_UDP ARES_NI_DGRAM
+#define ARES_NI_SCTP (1 << 5)
+#define ARES_NI_DCCP (1 << 6)
+#define ARES_NI_NUMERICSCOPE (1 << 7)
+#define ARES_NI_LOOKUPHOST (1 << 8)
+#define ARES_NI_LOOKUPSERVICE (1 << 9)
+/* Reserved for future use */
+#define ARES_NI_IDN (1 << 10)
+#define ARES_NI_IDN_ALLOW_UNASSIGNED (1 << 11)
+#define ARES_NI_IDN_USE_STD3_ASCII_RULES (1 << 12)
+
+/* Addrinfo flag values */
+#define ARES_AI_CANONNAME (1 << 0)
+#define ARES_AI_NUMERICHOST (1 << 1)
+#define ARES_AI_PASSIVE (1 << 2)
+#define ARES_AI_NUMERICSERV (1 << 3)
+#define ARES_AI_V4MAPPED (1 << 4)
+#define ARES_AI_ALL (1 << 5)
+#define ARES_AI_ADDRCONFIG (1 << 6)
+/* Reserved for future use */
+#define ARES_AI_IDN (1 << 10)
+#define ARES_AI_IDN_ALLOW_UNASSIGNED (1 << 11)
+#define ARES_AI_IDN_USE_STD3_ASCII_RULES (1 << 12)
+#define ARES_AI_CANONIDN (1 << 13)
+
+#define ARES_AI_MASK (ARES_AI_CANONNAME|ARES_AI_NUMERICHOST|ARES_AI_PASSIVE| \
+ ARES_AI_NUMERICSERV|ARES_AI_V4MAPPED|ARES_AI_ALL| \
+ ARES_AI_ADDRCONFIG)
+#define ARES_GETSOCK_MAXNUM 16 /* ares_getsock() can return info about this
+ many sockets */
+#define ARES_GETSOCK_READABLE(bits,num) (bits & (1<< (num)))
+#define ARES_GETSOCK_WRITABLE(bits,num) (bits & (1 << ((num) + \
+ ARES_GETSOCK_MAXNUM)))
+
+
+/*
+ * Typedef our socket type
+ */
+
+#ifndef ares_socket_typedef
+#ifdef WIN32
+typedef SOCKET ares_socket_t;
+#define ARES_SOCKET_BAD INVALID_SOCKET
+#else
+typedef int ares_socket_t;
+#define ARES_SOCKET_BAD -1
+#endif
+#define ares_socket_typedef
+#endif /* ares_socket_typedef */
+
+typedef void (*ares_sock_state_cb)(void *data,
+ ares_socket_t socket_fd,
+ int readable,
+ int writable);
+
+struct apattern;
struct ares_options {
int flags;
- int timeout;
+ int timeout; /* in seconds or milliseconds, depending on options */
int tries;
int ndots;
unsigned short udp_port;
unsigned short tcp_port;
+ int socket_send_buffer_size;
+ int socket_receive_buffer_size;
struct in_addr *servers;
int nservers;
char **domains;
int ndomains;
char *lookups;
+ ares_sock_state_cb sock_state_cb;
+ void *sock_state_cb_data;
+ struct apattern *sortlist;
+ int nsort;
};
struct hostent;
struct timeval;
+struct sockaddr;
struct ares_channeldata;
typedef struct ares_channeldata *ares_channel;
-typedef void (*ares_callback)(void *arg, int status, unsigned char *abuf,
- int alen);
-typedef void (*ares_host_callback)(void *arg, int status,
- struct hostent *hostent);
+typedef void (*ares_callback)(void *arg, int status, int timeouts,
+ unsigned char *abuf, int alen);
+typedef void (*ares_host_callback)(void *arg, int status, int timeouts,
+ struct hostent *hostent);
+typedef void (*ares_nameinfo_callback)(void *arg, int status, int timeouts,
+ char *node, char *service);
int ares_init(ares_channel *channelptr);
int ares_init_options(ares_channel *channelptr, struct ares_options *options,
- int optmask);
+ int optmask);
+int ares_save_options(ares_channel channel, struct ares_options *options, int *optmask);
+void ares_destroy_options(struct ares_options *options);
void ares_destroy(ares_channel channel);
-
+void ares_cancel(ares_channel channel);
void ares_send(ares_channel channel, const unsigned char *qbuf, int qlen,
- ares_callback callback, void *arg);
+ ares_callback callback, void *arg);
void ares_query(ares_channel channel, const char *name, int dnsclass,
- int type, ares_callback callback, void *arg);
+ int type, ares_callback callback, void *arg);
void ares_search(ares_channel channel, const char *name, int dnsclass,
- int type, ares_callback callback, void *arg);
+ int type, ares_callback callback, void *arg);
void ares_gethostbyname(ares_channel channel, const char *name, int family,
- ares_host_callback callback, void *arg);
+ ares_host_callback callback, void *arg);
void ares_gethostbyaddr(ares_channel channel, const void *addr, int addrlen,
- int family, ares_host_callback callback, void *arg);
-
+ int family, ares_host_callback callback, void *arg);
+void ares_getnameinfo(ares_channel channel, const struct sockaddr *sa,
+ socklen_t salen, int flags,
+ ares_nameinfo_callback callback,
+ void *arg);
int ares_fds(ares_channel channel, fd_set *read_fds, fd_set *write_fds);
+int ares_getsock(ares_channel channel, int *socks, int numsocks);
struct timeval *ares_timeout(ares_channel channel, struct timeval *maxtv,
- struct timeval *tv);
+ struct timeval *tv);
void ares_process(ares_channel channel, fd_set *read_fds, fd_set *write_fds);
+void ares_process_fd(ares_channel channel, ares_socket_t read_fd,
+ ares_socket_t write_fd);
int ares_mkquery(const char *name, int dnsclass, int type, unsigned short id,
- int rd, unsigned char **buf, int *buflen);
+ int rd, unsigned char **buf, int *buflen);
int ares_expand_name(const unsigned char *encoded, const unsigned char *abuf,
- int alen, char **s, long *enclen);
+ int alen, char **s, long *enclen);
int ares_expand_string(const unsigned char *encoded, const unsigned char *abuf,
- int alen, unsigned char **s, long *enclen);
+ int alen, unsigned char **s, long *enclen);
+
+#if !defined(HAVE_STRUCT_IN6_ADDR) && !defined(s6_addr)
+struct in6_addr {
+ union {
+ unsigned char _S6_u8[16];
+ } _S6_un;
+};
+#define s6_addr _S6_un._S6_u8
+#endif
+
+struct addrttl {
+ struct in_addr ipaddr;
+ int ttl;
+};
+struct addr6ttl {
+ struct in6_addr ip6addr;
+ int ttl;
+};
+
+/*
+** Parse the buffer, starting at *abuf and of length alen bytes, previously
+** obtained from an ares_search call. Put the results in *host, if nonnull.
+** Also, if addrttls is nonnull, put up to *naddrttls IPv4 addresses along with
+** their TTLs in that array, and set *naddrttls to the number of addresses
+** so written.
+*/
int ares_parse_a_reply(const unsigned char *abuf, int alen,
- struct hostent **host);
+ struct hostent **host,
+ struct addrttl *addrttls, int *naddrttls);
+int ares_parse_aaaa_reply(const unsigned char *abuf, int alen,
+ struct hostent **host,
+ struct addr6ttl *addrttls, int *naddrttls);
int ares_parse_ptr_reply(const unsigned char *abuf, int alen, const void *addr,
- int addrlen, int family, struct hostent **host);
+ int addrlen, int family, struct hostent **host);
+int ares_parse_ns_reply(const unsigned char *abuf, int alen,
+ struct hostent **host);
void ares_free_string(void *str);
void ares_free_hostent(struct hostent *host);
const char *ares_strerror(int code);
-void ares_free_errmem(char *mem);
+
+#ifdef __cplusplus
+}
+#endif
#endif /* ARES__H */
projects / platform / upstream / c-ares.git / blobdiff