CURLM_ADDED_ALREADY: new error code

Doing curl_multi_add_handle() on an easy handle that is already added to
a multi handle now returns this error code. It previously returned
CURLM_

CURLM_ADDED_ALREADY: new error code

Doing curl_multi_add_handle() on an easy handle that is already added to
a multi handle now returns this error code. It previously returned
CURLM_BAD_EASY_HANDLE for this condition.

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CURLOPT_XFERINFOFUNCTION: introducing a new progress callback

CURLOPT_XFERINFOFUNCTION is now the preferred progress callback function
and CURLOPT_PROGRESSFUNCTION is considered deprecat

CURLOPT_XFERINFOFUNCTION: introducing a new progress callback

CURLOPT_XFERINFOFUNCTION is now the preferred progress callback function
and CURLOPT_PROGRESSFUNCTION is considered deprecated.

This new callback uses pure 'curl_off_t' arguments to pass on full
resolution sizes. It otherwise retains the same characteristics: the
same call rate, the same meanings for the arguments and the return code
is used the same way.

The progressfunc.c example is updated to show how to use the new
callback for newer libcurls while supporting the older one if built with
an older libcurl or even built with a newer libcurl while running with
an older.

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Corrected version numbers after bump

DOCS: Updated following the addition of CURLOPT_SASL_IR

Documented the the option in curl_easy_setopt() and added it to
symbols-in-versions.

Multiple pipelines and limiting the number of connections.

Introducing a number of options to the multi interface that
allows for multiple pipelines to the same host, in order to
opt

Multiple pipelines and limiting the number of connections.

Introducing a number of options to the multi interface that
allows for multiple pipelines to the same host, in order to
optimize the balance between the penalty for opening new
connections and the potential pipelining latency.

Two new options for limiting the number of connections:

CURLMOPT_MAX_HOST_CONNECTIONS - Limits the number of running connections
to the same host. When adding a handle that exceeds this limit,
that handle will be put in a pending state until another handle is
finished, so we can reuse the connection.

CURLMOPT_MAX_TOTAL_CONNECTIONS - Limits the number of connections in total.
When adding a handle that exceeds this limit,
that handle will be put in a pending state until another handle is
finished. The free connection will then be reused, if possible, or
closed if the pending handle can't reuse it.

Several new options for pipelining:

CURLMOPT_MAX_PIPELINE_LENGTH - Limits the pipeling length. If a
pipeline is "full" when a connection is to be reused, a new connection
will be opened if the CURLMOPT_MAX_xxx_CONNECTIONS limits allow it.
If not, the handle will be put in a pending state until a connection is
ready (either free or a pipe got shorter).

CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE - A pipelined connection will not
be reused if it is currently processing a transfer with a content
length that is larger than this.

CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE - A pipelined connection will not
be reused if it is currently processing a chunk larger than this.

CURLMOPT_PIPELINING_SITE_BL - A blacklist of hosts that don't allow
pipelining.

CURLMOPT_PIPELINING_SERVER_BL - A blacklist of server types that don't allow
pipelining.

See the curl_multi_setopt() man page for details.

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curl_global_init: accept the CURL_GLOBAL_ACK_EINTR flag

The flag can be used in pycurl-based applications where using the multi
interface would not be acceptable because of the performan

curl_global_init: accept the CURL_GLOBAL_ACK_EINTR flag

The flag can be used in pycurl-based applications where using the multi
interface would not be acceptable because of the performance lost caused
by implementing the select() loop in python.

Bug: http://curl.haxx.se/bug/view.cgi?id=1168
Downstream Bug: https://bugzilla.redhat.com/919127

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symbols-in-versions: new CURL_WAIT_* symbols

curl_easy_setopt: documented CURLSOCKTYPE_ACCEPT for SOCKOPTFUNCTION

docs: mention CURLSSH_AUTH_AGENT

CURLOPT_POSTREDIR: also allow 303 to do POST on the redirected URL

As it turns out, some people do want that after all.

libcurl docs: version corrections

Correct some inconsistencies in which version some things were added.

Bug: http://curl.haxx.se/bug/view.cgi?id=3494091
Reported by: "curlybugs"

CURLOPT_MAIL_AUTH: added in 7.25.0

Brought in commit 0cf0ab6f300

s/7.24.1/7.25.0

We will go straight to 7.25.0 due to the new additions

CURLOPT_SSL_OPTIONS: added

Allow an appliction to set libcurl specific SSL options. The first and
only options supported right now is CURLSSLOPT_ALLOW_BEAST.

It will make libcur

CURLOPT_SSL_OPTIONS: added

Allow an appliction to set libcurl specific SSL options. The first and
only options supported right now is CURLSSLOPT_ALLOW_BEAST.

It will make libcurl to disable any work-arounds the underlying SSL
library may have to address a known security flaw in the SSL3 and TLS1.0
protocol versions.

This is a reaction to us unconditionally removing that behavior after
this security advisory:

http://curl.haxx.se/docs/adv_20120124B.html

... it did however cause a lot of programs to fail because of old
servers not liking this work-around. Now programs can opt to decrease
the security in order to interoperate with old servers better.

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add library support for tuning TCP_KEEPALIVE

This adds three new options to control the behavior of TCP keepalives:

- CURLOPT_TCP_KEEPALIVE: enable/disable probes
- CURLOPT_TCP_

add library support for tuning TCP_KEEPALIVE

This adds three new options to control the behavior of TCP keepalives:

- CURLOPT_TCP_KEEPALIVE: enable/disable probes
- CURLOPT_TCP_KEEPIDLE: idle time before sending first probe
- CURLOPT_TCP_KEEPINTVL: delay between successive probes

While not all operating systems support the TCP_KEEPIDLE and
TCP_KEEPINTVL knobs, the library will still allow these options to be
set by clients, silently ignoring the values.

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FTP: perform active connections non-blocking

1- Two new error codes are introduced.

CURLE_FTP_ACCEPT_FAILED to be set whenever ACCEPTing fails because of
FTP server connected.

FTP: perform active connections non-blocking

1- Two new error codes are introduced.

CURLE_FTP_ACCEPT_FAILED to be set whenever ACCEPTing fails because of
FTP server connected.

CURLE_FTP_ACCEPT_TIMEOUT to be set whenever ACCEPTing timeouts.

Neither of these errors are considered fatal and control connection
remains OK because it could just be a firewall blocking server to
connect to the client.

2- One new setopt option was introduced.

CURLOPT_ACCEPTTIMEOUT_MS

It sets the maximum amount of time FTP client is going to wait for a
server to connect. Internal default accept timeout is 60 seconds.

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SFTP: support '*' prefix for quote operations

prefixing a command with '*' means it is allowed to fail without
aborting the chain actions

share: don't use SSL unless enabled

Don't even declare the struct members for disabled features

Introducing the CURLSHE_NOT_BUILT_IN return code for the share interface
when try

share: don't use SSL unless enabled

Don't even declare the struct members for disabled features

Introducing the CURLSHE_NOT_BUILT_IN return code for the share interface
when trying to set a sharing option that has been disabled (or not
enabled) in the library.

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remove short-lived CURL_WRITEFUNC_OUT_OF_MEMORY

allow write callbacks to indicate OOM to libcurl

Allow (*curl_write_callback) write callbacks to return
CURL_WRITEFUNC_OUT_OF_MEMORY to properly indicate libcurl of OOM conditions
in

allow write callbacks to indicate OOM to libcurl

Allow (*curl_write_callback) write callbacks to return
CURL_WRITEFUNC_OUT_OF_MEMORY to properly indicate libcurl of OOM conditions
inside the callback itself.

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NTLM single-sign on adjustments (X)

Functions renamed:

Curl_output_ntlm_sso -> Curl_output_ntlm_wb
sso_ntlm_close -> wb_ntlm_close
sso_ntlm_response -> wb_ntlm_response

NTLM single-sign on adjustments (X)

Functions renamed:

Curl_output_ntlm_sso -> Curl_output_ntlm_wb
sso_ntlm_close -> wb_ntlm_close
sso_ntlm_response -> wb_ntlm_response
sso_ntlm_initiate -> wb_ntlm_initiate

Preprocessor symbols renamed:

CURLAUTH_NTLM_SSO -> CURLAUTH_NTLM_WB
CURL_VERSION_NTLM_SSO -> CURL_VERSION_NTLM_WB

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s/7.21.8/7.22.0

curl_gssapi: refine the handling of CURLOPT_GSSAPI_DELEGATION

Suggested by Richard Silverman.

symbols-in-versions: add NTLM_SSO symbols

symbols-in-versions: add CLOSESOCKET*