CURLOPT_RESOLVE man page on DragonFly

Man page or keyword search:  
man Server   44335 pages
apropos Keyword Search (all sections)
Output format
DragonFly logo
[printable version]

CURLOPT_RESOLVE(3)	   curl_easy_setopt options	    CURLOPT_RESOLVE(3)

NAME
       CURLOPT_RESOLVE - provide custom host name to IP address resolves

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RESOLVE,
				 struct curl_slist *hosts);

DESCRIPTION
       Pass  a	pointer	 to  a	linked	list of strings with host name resolve
       information to use for requests	with  this  handle.  The  linked  list
       should  be  a  fully  valid  list of struct curl_slist structs properly
       filled  in.  Use	 curl_slist_append(3)	to   create   the   list   and
       curl_slist_free_all(3) to clean up an entire list.

       Each  single  name  resolve  string  should be written using the format
       HOST:PORT:ADDRESS where HOST is the name libcurl will try  to  resolve,
       PORT  is	 the port number of the service where libcurl wants to connect
       to the HOST and ADDRESS is the numerical	 IP  address.  If  libcurl  is
       built  to  support  IPv6,  ADDRESS can of course be either IPv4 or IPv6
       style addressing.

       This option effectively pre-populates the DNS cache  with  entries  for
       the  host+port pair so redirects and everything that operations against
       the HOST+PORT will instead use your provided ADDRESS. Addresses to  set
       with  CURL_RESOLVE  will	 not time-out from the DNS cache like ordinary
       entries.

       You can remove names from the DNS cache again, to stop providing	 these
       fake  resolves,	by including a string in the linked list that uses the
       format "-HOST:PORT". The host name must be prefixed with	 a  dash,  and
       the host name and port number must exactly match what was already added
       previously. (Added in 7.42.0)

DEFAULT
       NULL

PROTOCOLS
       All

EXAMPLE
       CURL *curl;
       struct curl_slist *host = NULL;
       host = curl_slist_append(NULL, "example.com:80:127.0.0.1");

       curl = curl_easy_init();
       if(curl) {
	 curl_easy_setopt(curl, CURLOPT_RESOLVE, host);
	 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
	 res = curl_easy_perform(curl);

	 /* always cleanup */
	 curl_easy_cleanup(curl);
       }

       curl_slist_free_all(host);

AVAILABILITY
       Added in 7.21.3. Removal support added in 7.42.0.

RETURN VALUE
       Returns CURLE_OK if the option is supported,  and  CURLE_UNKNOWN_OPTION
       if not.

SEE ALSO
       CURLOPT_IPRESOLVE(3), CURLOPT_DNS_CACHE_TIMEOUT(3),

libcurl 7.37.0			  19 Jun 2014		    CURLOPT_RESOLVE(3)
[top]

List of man pages available for DragonFly

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net