diff options
Diffstat (limited to 'Source/CTest/Curl/hostip.h')
| -rw-r--r-- | Source/CTest/Curl/hostip.h | 213 |
1 files changed, 192 insertions, 21 deletions
diff --git a/Source/CTest/Curl/hostip.h b/Source/CTest/Curl/hostip.h index 136b514..ea9d080 100644 --- a/Source/CTest/Curl/hostip.h +++ b/Source/CTest/Curl/hostip.h @@ -1,18 +1,18 @@ #ifndef __HOSTIP_H #define __HOSTIP_H /*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * - * Copyright (C) 1998 - 2002, Daniel Stenberg, <daniel@haxx.se>, et al. + * Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at http://curl.haxx.se/docs/copyright.html. - * + * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. @@ -26,8 +26,89 @@ #include "setup.h" #include "hash.h" +/* + * Setup comfortable CURLRES_* defines to use in the host*.c sources. + */ + +#ifdef USE_ARES +#define CURLRES_ASYNCH +#define CURLRES_ARES +#endif + +#ifdef USE_THREADING_GETHOSTBYNAME +#define CURLRES_ASYNCH +#define CURLRES_THREADED +#endif + +#ifdef USE_THREADING_GETADDRINFO +#define CURLRES_ASYNCH +#define CURLRES_THREADED +#endif + +#ifdef ENABLE_IPV6 +#define CURLRES_IPV6 +#else +#define CURLRES_IPV4 +#endif + +#ifdef CURLRES_IPV4 +#if !defined(HAVE_GETHOSTBYNAME_R) || defined(CURLRES_ASYNCH) +/* If built for ipv4 and missing gethostbyname_r(), or if using async name + resolve, we need the Curl_addrinfo_copy() function (which itself needs the + Curl_hostent_relocate() function)) */ +#define CURLRES_ADDRINFO_COPY +#endif +#endif /* IPv4-only */ + +#ifndef CURLRES_ASYNCH +#define CURLRES_SYNCH +#endif + +#ifndef USE_LIBIDN +#define CURLRES_IDN +#endif + +/* Allocate enough memory to hold the full name information structs and + * everything. OSF1 is known to require at least 8872 bytes. The buffer + * required for storing all possible aliases and IP numbers is according to + * Stevens' Unix Network Programming 2nd edition, p. 304: 8192 bytes! + */ +#define CURL_HOSTENT_SIZE 9000 + +#define CURL_TIMEOUT_RESOLVE 300 /* when using asynch methods, we allow this + many seconds for a name resolve */ + +#ifdef CURLRES_ARES +#define CURL_ASYNC_SUCCESS ARES_SUCCESS +#else +#define CURL_ASYNC_SUCCESS CURLE_OK +#endif + +/* + * Curl_addrinfo MUST be used for all name resolved info. + */ +#ifdef CURLRES_IPV6 +typedef struct addrinfo Curl_addrinfo; +#else +/* OK, so some ipv4-only include tree probably have the addrinfo struct, but + to work even on those that don't, we provide our own look-alike! */ +struct Curl_addrinfo { + int ai_flags; + int ai_family; + int ai_socktype; + int ai_protocol; + size_t ai_addrlen; + struct sockaddr *ai_addr; + char *ai_canonname; + struct Curl_addrinfo *ai_next; +}; +typedef struct Curl_addrinfo Curl_addrinfo; +#endif + struct addrinfo; +struct hostent; struct SessionHandle; +struct connectdata; void Curl_global_host_cache_init(void); void Curl_global_host_cache_dtor(void); @@ -40,9 +121,6 @@ struct Curl_dns_entry { time_t timestamp; long inuse; /* use-counter, make very sure you decrease this when you're done using the address you received */ -#ifdef MALLOCDEBUG - char *entry_id; -#endif }; /* @@ -52,13 +130,44 @@ struct Curl_dns_entry { * The returned data *MUST* be "unlocked" with Curl_resolv_unlock() after * use, or we'll leak memory! */ +/* return codes */ +#define CURLRESOLV_ERROR -1 +#define CURLRESOLV_RESOLVED 0 +#define CURLRESOLV_PENDING 1 +int Curl_resolv(struct connectdata *conn, char *hostname, + int port, struct Curl_dns_entry **dnsentry); + +/* + * Curl_ipvalid() checks what CURL_IPRESOLVE_* requirements that might've + * been set and returns TRUE if they are OK. + */ +bool Curl_ipvalid(struct SessionHandle *data); + +/* + * Curl_getaddrinfo() is the generic low-level name resolve API within this + * source file. There are several versions of this function - for different + * name resolve layers (selected at build-time). They all take this same set + * of arguments + */ +Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn, + char *hostname, + int port, + int *waitp); -struct Curl_dns_entry *Curl_resolv(struct SessionHandle *data, - char *hostname, - int port); +CURLcode Curl_is_resolved(struct connectdata *conn, + struct Curl_dns_entry **dns); +CURLcode Curl_wait_for_resolv(struct connectdata *conn, + struct Curl_dns_entry **dnsentry); +/* Curl_fdset() is a generic function that exists in multiple versions + depending on what name resolve technology we've built to use. The function + is called from the curl_multi_fdset() function */ +CURLcode Curl_fdset(struct connectdata *conn, + fd_set *read_fd_set, + fd_set *write_fd_set, + int *max_fdp); /* unlock a previously resolved dns entry */ -#define Curl_resolv_unlock(dns) dns->inuse-- +void Curl_resolv_unlock(struct SessionHandle *data, struct Curl_dns_entry *dns); /* for debugging purposes only: */ void Curl_scan_cache_used(void *user, void *ptr); @@ -66,16 +175,78 @@ void Curl_scan_cache_used(void *user, void *ptr); /* free name info */ void Curl_freeaddrinfo(Curl_addrinfo *freeaddr); -/* free cached name info */ -void Curl_freednsinfo(void *freethis); +/* make a new dns cache and return the handle */ +curl_hash *Curl_mk_dnscache(void); -#ifdef MALLOCDEBUG -void curl_freeaddrinfo(struct addrinfo *freethis, +/* prune old entries from the DNS cache */ +void Curl_hostcache_prune(struct SessionHandle *data); + +/* Return # of adresses in a Curl_addrinfo struct */ +int Curl_num_addresses (const Curl_addrinfo *addr); + +#ifdef CURLDEBUG +void curl_dofreeaddrinfo(struct addrinfo *freethis, + int line, const char *source); +int curl_dogetaddrinfo(char *hostname, char *service, + struct addrinfo *hints, + struct addrinfo **result, int line, const char *source); -int curl_getaddrinfo(char *hostname, char *service, - struct addrinfo *hints, - struct addrinfo **result, - int line, const char *source); +int curl_dogetnameinfo(const struct sockaddr *sa, socklen_t salen, + char *host, size_t hostlen, + char *serv, size_t servlen, int flags, + int line, const char *source); +#endif + +/* This is the callback function that is used when we build with asynch + resolve, ipv4 */ +void Curl_addrinfo4_callback(void *arg, + int status, + struct hostent *hostent); +/* This is the callback function that is used when we build with asynch + resolve, ipv6 */ +void Curl_addrinfo6_callback(void *arg, + int status, + struct addrinfo *ai); + + +/* [ipv4 only] Creates a Curl_addrinfo struct from a numerical-only IP + address */ +Curl_addrinfo *Curl_ip2addr(in_addr_t num, char *hostname, int port); + +/* [ipv4 only] Curl_he2ai() converts a struct hostent to a Curl_addrinfo chain + and returns it */ +Curl_addrinfo *Curl_he2ai(struct hostent *, int port); + +/* relocate a hostent struct */ +void Curl_hostent_relocate(struct hostent *h, long offset); + +/* Clone a Curl_addrinfo struct, works protocol independently */ +Curl_addrinfo *Curl_addrinfo_copy(void *orig, int port); + +/* + * Curl_printable_address() returns a printable version of the 1st address + * given in the 'ip' argument. The result will be stored in the buf that is + * bufsize bytes big. + */ +const char *Curl_printable_address(const Curl_addrinfo *ip, + char *buf, size_t bufsize); + +/* + * Curl_cache_addr() stores a 'Curl_addrinfo' struct in the DNS cache. + * + * Returns the Curl_dns_entry entry pointer or NULL if the storage failed. + */ +struct Curl_dns_entry * +Curl_cache_addr(struct SessionHandle *data, Curl_addrinfo *addr, + char *hostname, int port); + +#ifndef INADDR_NONE +#define CURL_INADDR_NONE (in_addr_t) ~0 +#else +#define CURL_INADDR_NONE INADDR_NONE #endif + + + #endif |