diff options
Diffstat (limited to 'ares.h')
| -rw-r--r-- | ares.h | 142 |
1 files changed, 128 insertions, 14 deletions
@@ -1,6 +1,6 @@ -/* Copyright 1998, 2009 by the Massachusetts Institute of Technology. - * Copyright (C) 2007-2011 by Daniel Stenberg +/* Copyright 1998 by the Massachusetts Institute of Technology. + * Copyright (C) 2007-2013 by Daniel Stenberg * * Permission to use, copy, modify, and distribute this * software and its documentation for any purpose and without @@ -38,7 +38,8 @@ require it! */ #if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \ defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY) || \ - defined(__ANDROID__) + defined(ANDROID) || defined(__ANDROID__) || defined(__OpenBSD__) || \ + defined(__QNXNTO__) #include <sys/select.h> #endif #if (defined(NETWARE) && !defined(__NOVELL_LIBC__)) @@ -75,22 +76,18 @@ extern "C" { ** c-ares external API function linkage decorations. */ -#if !defined(CARES_STATICLIB) && \ - (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__)) - /* __declspec function decoration for Win32 and Symbian DLL's */ +#ifdef CARES_STATICLIB +# define CARES_EXTERN +#elif defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__) # if defined(CARES_BUILDING_LIBRARY) # define CARES_EXTERN __declspec(dllexport) # else # define CARES_EXTERN __declspec(dllimport) # endif +#elif defined(CARES_BUILDING_LIBRARY) && defined(CARES_SYMBOL_HIDING) +# define CARES_EXTERN CARES_SYMBOL_SCOPE_EXTERN #else - /* visibility function decoration for other cases */ -# if !defined(CARES_SYMBOL_HIDING) || \ - defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__) -# define CARES_EXTERN -# else -# define CARES_EXTERN CARES_SYMBOL_SCOPE_EXTERN -# endif +# define CARES_EXTERN #endif @@ -143,6 +140,7 @@ extern "C" { #define ARES_FLAG_NOSEARCH (1 << 5) #define ARES_FLAG_NOALIASES (1 << 6) #define ARES_FLAG_NOCHECKRESP (1 << 7) +#define ARES_FLAG_EDNS (1 << 8) /* Option mask values */ #define ARES_OPT_FLAGS (1 << 0) @@ -160,6 +158,8 @@ extern "C" { #define ARES_OPT_SOCK_RCVBUF (1 << 12) #define ARES_OPT_TIMEOUTMS (1 << 13) #define ARES_OPT_ROTATE (1 << 14) +#define ARES_OPT_EDNSPSZ (1 << 15) +#define ARES_OPT_NOROTATE (1 << 16) /* Nameinfo flag values */ #define ARES_NI_NOFQDN (1 << 0) @@ -265,6 +265,7 @@ struct ares_options { void *sock_state_cb_data; struct apattern *sortlist; int nsort; + int ednspsz; }; struct hostent; @@ -295,8 +296,19 @@ typedef int (*ares_sock_create_callback)(ares_socket_t socket_fd, int type, void *data); +typedef int (*ares_sock_config_callback)(ares_socket_t socket_fd, + int type, + void *data); + CARES_EXTERN int ares_library_init(int flags); +CARES_EXTERN int ares_library_init_mem(int flags, + void *(*amalloc)(size_t size), + void (*afree)(void *ptr), + void *(*arealloc)(void *ptr, size_t size)); + +CARES_EXTERN int ares_library_initialized(void); + CARES_EXTERN void ares_library_cleanup(void); CARES_EXTERN const char *ares_version(int *version); @@ -338,6 +350,34 @@ CARES_EXTERN void ares_set_socket_callback(ares_channel channel, ares_sock_create_callback callback, void *user_data); +CARES_EXTERN void ares_set_socket_configure_callback(ares_channel channel, + ares_sock_config_callback callback, + void *user_data); + +CARES_EXTERN int ares_set_sortlist(ares_channel channel, + const char *sortstr); + +/* + * Virtual function set to have user-managed socket IO. + * Note that all functions need to be defined, and when + * set, the library will not do any bind nor set any + * socket options, assuming the client handles these + * through either socket creation or the + * ares_sock_config_callback call. + */ +struct iovec; +struct ares_socket_functions { + ares_socket_t(*asocket)(int, int, int, void *); + int(*aclose)(ares_socket_t, void *); + int(*aconnect)(ares_socket_t, const struct sockaddr *, ares_socklen_t, void *); + ares_ssize_t(*arecvfrom)(ares_socket_t, void *, size_t, int, struct sockaddr *, ares_socklen_t *, void *); + ares_ssize_t(*asendv)(ares_socket_t, const struct iovec *, int, void *); +}; + +CARES_EXTERN void ares_set_socket_functions(ares_channel channel, + const struct ares_socket_functions * funcs, + void *user_data); + CARES_EXTERN void ares_send(ares_channel channel, const unsigned char *qbuf, int qlen, @@ -403,6 +443,15 @@ CARES_EXTERN void ares_process_fd(ares_channel channel, ares_socket_t read_fd, ares_socket_t write_fd); +CARES_EXTERN int ares_create_query(const char *name, + int dnsclass, + int type, + unsigned short id, + int rd, + unsigned char **buf, + int *buflen, + int max_udp_size); + CARES_EXTERN int ares_mkquery(const char *name, int dnsclass, int type, @@ -466,6 +515,37 @@ struct ares_txt_reply { size_t length; /* length excludes null termination */ }; +/* NOTE: This structure is a superset of ares_txt_reply + */ +struct ares_txt_ext { + struct ares_txt_ext *next; + unsigned char *txt; + size_t length; + /* 1 - if start of new record + * 0 - if a chunk in the same record */ + unsigned char record_start; +}; + +struct ares_naptr_reply { + struct ares_naptr_reply *next; + unsigned char *flags; + unsigned char *service; + unsigned char *regexp; + char *replacement; + unsigned short order; + unsigned short preference; +}; + +struct ares_soa_reply { + char *nsname; + char *hostmaster; + unsigned int serial; + unsigned int refresh; + unsigned int retry; + unsigned int expire; + unsigned int minttl; +}; + /* ** 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. @@ -509,6 +589,18 @@ CARES_EXTERN int ares_parse_txt_reply(const unsigned char* abuf, int alen, struct ares_txt_reply** txt_out); +CARES_EXTERN int ares_parse_txt_reply_ext(const unsigned char* abuf, + int alen, + struct ares_txt_ext** txt_out); + +CARES_EXTERN int ares_parse_naptr_reply(const unsigned char* abuf, + int alen, + struct ares_naptr_reply** naptr_out); + +CARES_EXTERN int ares_parse_soa_reply(const unsigned char* abuf, + int alen, + struct ares_soa_reply** soa_out); + CARES_EXTERN void ares_free_string(void *str); CARES_EXTERN void ares_free_hostent(struct hostent *host); @@ -517,7 +609,6 @@ CARES_EXTERN void ares_free_data(void *dataptr); CARES_EXTERN const char *ares_strerror(int code); -/* TODO: Hold port here as well. */ struct ares_addr_node { struct ares_addr_node *next; int family; @@ -527,15 +618,38 @@ struct ares_addr_node { } addr; }; +struct ares_addr_port_node { + struct ares_addr_port_node *next; + int family; + union { + struct in_addr addr4; + struct ares_in6_addr addr6; + } addr; + int udp_port; + int tcp_port; +}; + CARES_EXTERN int ares_set_servers(ares_channel channel, struct ares_addr_node *servers); +CARES_EXTERN int ares_set_servers_ports(ares_channel channel, + struct ares_addr_port_node *servers); /* Incomming string format: host[:port][,host[:port]]... */ CARES_EXTERN int ares_set_servers_csv(ares_channel channel, const char* servers); +CARES_EXTERN int ares_set_servers_ports_csv(ares_channel channel, + const char* servers); CARES_EXTERN int ares_get_servers(ares_channel channel, struct ares_addr_node **servers); +CARES_EXTERN int ares_get_servers_ports(ares_channel channel, + struct ares_addr_port_node **servers); + +CARES_EXTERN const char *ares_inet_ntop(int af, const void *src, char *dst, + ares_socklen_t size); + +CARES_EXTERN int ares_inet_pton(int af, const char *src, void *dst); + #ifdef __cplusplus } |