mirror of
https://github.com/curl/curl.git
synced 2024-12-09 06:30:06 +08:00
5a053ffe80
This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.
Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]
Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]
----------------------------------------
1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.
Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h
The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.
2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.
Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.
All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.
158 lines
4.6 KiB
C
158 lines
4.6 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 1998 - 2012, 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.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
|
|
#include "curl_setup.h"
|
|
|
|
#ifdef HAVE_NETINET_IN_H
|
|
#include <netinet/in.h>
|
|
#endif
|
|
#ifdef HAVE_NETDB_H
|
|
#include <netdb.h>
|
|
#endif
|
|
#ifdef HAVE_ARPA_INET_H
|
|
#include <arpa/inet.h>
|
|
#endif
|
|
#ifdef __VMS
|
|
#include <in.h>
|
|
#include <inet.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_PROCESS_H
|
|
#include <process.h>
|
|
#endif
|
|
|
|
#include "urldata.h"
|
|
#include "sendf.h"
|
|
#include "hostip.h"
|
|
#include "hash.h"
|
|
#include "share.h"
|
|
#include "strerror.h"
|
|
#include "url.h"
|
|
|
|
#define _MPRINTF_REPLACE /* use our functions only */
|
|
#include <curl/mprintf.h>
|
|
|
|
#include "curl_memory.h"
|
|
/* The last #include file should be: */
|
|
#include "memdebug.h"
|
|
|
|
/***********************************************************************
|
|
* Only for builds using asynchronous name resolves
|
|
**********************************************************************/
|
|
#ifdef CURLRES_ASYNCH
|
|
|
|
/*
|
|
* Curl_addrinfo_callback() gets called by ares, gethostbyname_thread()
|
|
* or getaddrinfo_thread() when we got the name resolved (or not!).
|
|
*
|
|
* If the status argument is CURL_ASYNC_SUCCESS, this function takes
|
|
* ownership of the Curl_addrinfo passed, storing the resolved data
|
|
* in the DNS cache.
|
|
*
|
|
* The storage operation locks and unlocks the DNS cache.
|
|
*/
|
|
CURLcode Curl_addrinfo_callback(struct connectdata *conn,
|
|
int status,
|
|
struct Curl_addrinfo *ai)
|
|
{
|
|
struct Curl_dns_entry *dns = NULL;
|
|
CURLcode rc = CURLE_OK;
|
|
|
|
conn->async.status = status;
|
|
|
|
if(CURL_ASYNC_SUCCESS == status) {
|
|
if(ai) {
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
if(data->share)
|
|
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
|
|
|
|
dns = Curl_cache_addr(data, ai,
|
|
conn->async.hostname,
|
|
conn->async.port);
|
|
if(!dns) {
|
|
/* failed to store, cleanup and return error */
|
|
Curl_freeaddrinfo(ai);
|
|
rc = CURLE_OUT_OF_MEMORY;
|
|
}
|
|
|
|
if(data->share)
|
|
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
|
|
}
|
|
else {
|
|
rc = CURLE_OUT_OF_MEMORY;
|
|
}
|
|
}
|
|
|
|
conn->async.dns = dns;
|
|
|
|
/* Set async.done TRUE last in this function since it may be used multi-
|
|
threaded and once this is TRUE the other thread may read fields from the
|
|
async struct */
|
|
conn->async.done = TRUE;
|
|
|
|
/* ipv4: The input hostent struct will be freed by ares when we return from
|
|
this function */
|
|
return rc;
|
|
}
|
|
|
|
/* Call this function after Curl_connect() has returned async=TRUE and
|
|
then a successful name resolve has been received.
|
|
|
|
Note: this function disconnects and frees the conn data in case of
|
|
resolve failure */
|
|
CURLcode Curl_async_resolved(struct connectdata *conn,
|
|
bool *protocol_done)
|
|
{
|
|
CURLcode code;
|
|
|
|
if(conn->async.dns) {
|
|
conn->dns_entry = conn->async.dns;
|
|
conn->async.dns = NULL;
|
|
}
|
|
|
|
code = Curl_setup_conn(conn, protocol_done);
|
|
|
|
if(code)
|
|
/* We're not allowed to return failure with memory left allocated
|
|
in the connectdata struct, free those here */
|
|
Curl_disconnect(conn, FALSE); /* close the connection */
|
|
|
|
return code;
|
|
}
|
|
|
|
/*
|
|
* 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,
|
|
const char *hostname,
|
|
int port,
|
|
int *waitp)
|
|
{
|
|
return Curl_resolver_getaddrinfo(conn, hostname, port, waitp);
|
|
}
|
|
|
|
#endif /* CURLRES_ASYNCH */
|