mirror of
https://github.com/curl/curl.git
synced 2024-11-21 01:16:58 +08:00
9d96a5f0b5
This new feature flag reports When cURL was built with multiple SSL backends. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
181 lines
7.3 KiB
Groff
181 lines
7.3 KiB
Groff
.\" **************************************************************************
|
|
.\" * _ _ ____ _
|
|
.\" * Project ___| | | | _ \| |
|
|
.\" * / __| | | | |_) | |
|
|
.\" * | (__| |_| | _ <| |___
|
|
.\" * \___|\___/|_| \_\_____|
|
|
.\" *
|
|
.\" * Copyright (C) 1998 - 2017, 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 https://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.
|
|
.\" *
|
|
.\" **************************************************************************
|
|
.\"
|
|
.TH curl_version_info 3 "2 Nov 2014" "libcurl 7.40.0" "libcurl Manual"
|
|
.SH NAME
|
|
curl_version_info - returns run-time libcurl version info
|
|
.SH SYNOPSIS
|
|
.B #include <curl/curl.h>
|
|
.sp
|
|
.BI "curl_version_info_data *curl_version_info( CURLversion "type ");"
|
|
.ad
|
|
.SH DESCRIPTION
|
|
Returns a pointer to a filled in static struct with information about various
|
|
features in the running version of libcurl. \fItype\fP should be set to the
|
|
version of this functionality by the time you write your program. This way,
|
|
libcurl will always return a proper struct that your program understands,
|
|
while programs in the future might get a different
|
|
struct. \fBCURLVERSION_NOW\fP will be the most recent one for the library you
|
|
have installed:
|
|
|
|
data = curl_version_info(CURLVERSION_NOW);
|
|
|
|
Applications should use this information to judge if things are possible to do
|
|
or not, instead of using compile-time checks, as dynamic/DLL libraries can be
|
|
changed independent of applications.
|
|
|
|
The curl_version_info_data struct looks like this
|
|
|
|
.nf
|
|
typedef struct {
|
|
CURLversion age; /* see description below */
|
|
|
|
/* when 'age' is 0 or higher, the members below also exist: */
|
|
const char *version; /* human readable string */
|
|
unsigned int version_num; /* numeric representation */
|
|
const char *host; /* human readable string */
|
|
int features; /* bitmask, see below */
|
|
char *ssl_version; /* human readable string */
|
|
long ssl_version_num; /* not used, always zero */
|
|
const char *libz_version; /* human readable string */
|
|
const char * const *protocols; /* protocols */
|
|
|
|
/* when 'age' is 1 or higher, the members below also exist: */
|
|
const char *ares; /* human readable string */
|
|
int ares_num; /* number */
|
|
|
|
/* when 'age' is 2 or higher, the member below also exists: */
|
|
const char *libidn; /* human readable string */
|
|
|
|
/* when 'age' is 3 or higher (7.16.1 or later), the members below also
|
|
exist */
|
|
int iconv_ver_num; /* '_libiconv_version' if iconv support enabled */
|
|
|
|
const char *libssh_version; /* human readable string */
|
|
|
|
} curl_version_info_data;
|
|
.fi
|
|
|
|
\fIage\fP describes what the age of this struct is. The number depends on how
|
|
new the libcurl you're using is. You are however guaranteed to get a struct
|
|
that you have a matching struct for in the header, as you tell libcurl your
|
|
"age" with the input argument.
|
|
|
|
\fIversion\fP is just an ascii string for the libcurl version.
|
|
|
|
\fIversion_num\fP is a 24 bit number created like this: <8 bits major number>
|
|
| <8 bits minor number> | <8 bits patch number>. Version 7.9.8 is therefore
|
|
returned as 0x070908.
|
|
|
|
\fIhost\fP is an ascii string showing what host information that this libcurl
|
|
was built for. As discovered by a configure script or set by the build
|
|
environment.
|
|
|
|
\fIfeatures\fP can have none, one or more bits set, and the currently defined
|
|
bits are:
|
|
.RS
|
|
.IP CURL_VERSION_IPV6
|
|
supports IPv6
|
|
.IP CURL_VERSION_KERBEROS4
|
|
supports Kerberos V4 (when using FTP)
|
|
.IP CURL_VERSION_KERBEROS5
|
|
supports Kerberos V5 authentication for FTP, IMAP, POP3, SMTP and SOCKSv5 proxy
|
|
(Added in 7.40.0)
|
|
.IP CURL_VERSION_SSL
|
|
supports SSL (HTTPS/FTPS) (Added in 7.10)
|
|
.IP CURL_VERSION_LIBZ
|
|
supports HTTP deflate using libz (Added in 7.10)
|
|
.IP CURL_VERSION_NTLM
|
|
supports HTTP NTLM (added in 7.10.6)
|
|
.IP CURL_VERSION_GSSNEGOTIATE
|
|
supports HTTP GSS-Negotiate (added in 7.10.6)
|
|
.IP CURL_VERSION_DEBUG
|
|
libcurl was built with debug capabilities (added in 7.10.6)
|
|
.IP CURL_VERSION_CURLDEBUG
|
|
libcurl was built with memory tracking debug capabilities. This is mainly of
|
|
interest for libcurl hackers. (added in 7.19.6)
|
|
.IP CURL_VERSION_ASYNCHDNS
|
|
libcurl was built with support for asynchronous name lookups, which allows
|
|
more exact timeouts (even on Windows) and less blocking when using the multi
|
|
interface. (added in 7.10.7)
|
|
.IP CURL_VERSION_SPNEGO
|
|
libcurl was built with support for SPNEGO authentication (Simple and Protected
|
|
GSS-API Negotiation Mechanism, defined in RFC 2478.) (added in 7.10.8)
|
|
.IP CURL_VERSION_LARGEFILE
|
|
libcurl was built with support for large files. (Added in 7.11.1)
|
|
.IP CURL_VERSION_IDN
|
|
libcurl was built with support for IDNA, domain names with international
|
|
letters. (Added in 7.12.0)
|
|
.IP CURL_VERSION_SSPI
|
|
libcurl was built with support for SSPI. This is only available on Windows and
|
|
makes libcurl use Windows-provided functions for Kerberos, NTLM, SPNEGO and
|
|
Digest authentication. It also allows libcurl to use the current user
|
|
credentials without the app having to pass them on. (Added in 7.13.2)
|
|
.IP CURL_VERSION_GSSAPI
|
|
libcurl was built with support for GSS-API. This makes libcurl use provided
|
|
functions for Kerberos and SPNEGO authentication. It also allows libcurl
|
|
to use the current user credentials without the app having to pass them on.
|
|
(Added in 7.38.0)
|
|
.IP CURL_VERSION_CONV
|
|
libcurl was built with support for character conversions, as provided by the
|
|
CURLOPT_CONV_* callbacks. (Added in 7.15.4)
|
|
.IP CURL_VERSION_TLSAUTH_SRP
|
|
libcurl was built with support for TLS-SRP. (Added in 7.21.4)
|
|
.IP CURL_VERSION_NTLM_WB
|
|
libcurl was built with support for NTLM delegation to a winbind helper.
|
|
(Added in 7.22.0)
|
|
.IP CURL_VERSION_HTTP2
|
|
libcurl was built with support for HTTP2.
|
|
(Added in 7.33.0)
|
|
.IP CURL_VERSION_UNIX_SOCKETS
|
|
libcurl was built with support for Unix domain sockets.
|
|
(Added in 7.40.0)
|
|
.IP CURL_VERSION_PSL
|
|
libcurl was built with support for Mozilla's Public Suffix List. This makes
|
|
libcurl ignore cookies with a domain that's on the list.
|
|
(Added in 7.47.0)
|
|
.IP CURL_VERSION_HTTPS_PROXY
|
|
libcurl was built with support for HTTPS-proxy.
|
|
(Added in 7.52.0)
|
|
.IP CURL_VERSION_MULTI_SSL
|
|
libcurl was built with multiple SSL backends. For details, see
|
|
\fIcurl_global_sslset(3)\fP.
|
|
(Added in 7.56.0)
|
|
.RE
|
|
\fIssl_version\fP is an ASCII string for the OpenSSL version used. If libcurl
|
|
has no SSL support, this is NULL.
|
|
|
|
\fIssl_version_num\fP is always 0.
|
|
|
|
\fIlibz_version\fP is an ASCII string (there is no numerical version). If
|
|
libcurl has no libz support, this is NULL.
|
|
|
|
\fIprotocols\fP is a pointer to an array of char * pointers, containing the
|
|
names protocols that libcurl supports (using lowercase letters). The protocol
|
|
names are the same as would be used in URLs. The array is terminated by a NULL
|
|
entry.
|
|
.SH RETURN VALUE
|
|
A pointer to a curl_version_info_data struct.
|
|
.SH "SEE ALSO"
|
|
\fIcurl_version(3)\fP
|
|
|