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CURLOPT_RESOLVE: Add support for multiple IP addresses per entry

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This enables users to preresolve but still take advantage of happy
eyeballs and trying multiple addresses if some are not connecting.

Ref: https://github.com/curl/curl/pull/2260
This commit is contained in:
Anders Bakken 2018-01-30 16:33:51 -08:00 • committed by Jay Satiro
parent e77f0e5a5a
commit 50d1b3379a
9 changed files with 349 additions and 44 deletions
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4
docs/cmdline-opts/resolve.d
View file

@ -1,5 +1,5 @@
Long: resolve
Arg: <host:port:address>
Arg: <host:port:address[,address]...>
Help: Resolve the host+port to this address
Added: 7.21.3
---
@ -16,4 +16,6 @@ is set to make curl use another IP version.
Support for providing the IP address within [brackets] was added in 7.57.0.
Support for providing multiple IP addresses per entry was added in 7.59.0.
This option can be used many times to add many host names to resolve.

12
docs/libcurl/opts/CURLOPT_RESOLVE.3
View file

@ -37,10 +37,12 @@ list of \fBstruct curl_slist\fP structs properly filled in. Use
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.
HOST:PORT:ADDRESS[,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 one or more numerical IP
addresses. If you specify multiple ip addresses they need to be
separated by comma. If libcurl is built to support IPv6, each of the
ADDRESS entries 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
@ -57,6 +59,8 @@ by including a string in the linked list that uses the format
and port number must exactly match what was already added previously.
Support for providing the ADDRESS within [brackets] was added in 7.57.0.
Support for providing multiple IP addresses per entry was added in 7.59.0.
.SH DEFAULT
NULL
.SH PROTOCOLS