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+.\" * | (__| |_| | _ <| |___
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+.\" *
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+.\" * you should have received as part of this distribution. The terms
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.\"
-.TH curl_version_info 3 "19 Sep 2003" "libcurl 7.10.8" "libcurl Manual"
+.TH curl_version_info 3 "18 Feb 2014" "libcurl 7.33.0" "libcurl Manual"
.SH NAME
curl_version_info - returns run-time libcurl version info
.SH SYNOPSIS
.BI "curl_version_info_data *curl_version_info( CURLversion "type ");"
.ad
.SH DESCRIPTION
-Returns a pointer to a filled in struct with information about various
-run-time features in 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 an different struct. CURLVERSION_NOW will be the most
-recent one for the library you have installed:
+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);
.nf
typedef struct {
- CURLversion age; /* 0 - this kind of 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; /* number */
- char *libz_version; /* human readable string */
- const char *protocols[]; /* list of protocols */
+ long ssl_version_num; /* not used, always zero */
+ const char *libz_version; /* human readable string */
+ const char **protocols; /* list of 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 kind of struct this is. It is always 0 now. In a
-future libcurl, if this struct changes, this age counter may be increased, and
-then the struct for number 1 will look different (except for this first struct
-field).
+\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 6 digit hexadecimal number created like this: <2 digits
-major number> | <2 digits minor number> | <2 digits patch number>. Version
-7.9.8 is therefore returned as 0x070908.
+\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
\fIfeatures\fP can have none, one or more bits set, and the currently defined
bits are:
-.TP 5.5
-.B CURL_VERSION_IPV6
+.RS
+.IP CURL_VERSION_IPV6
supports IPv6
-.TP
-.B CURL_VERSION_KERBEROS4
+.IP CURL_VERSION_KERBEROS4
supports kerberos4 (when using FTP)
-.TP
-.B CURL_VERSION_SSL
-supports SSL (HTTPS/FTPS)
-.TP
-.B CURL_VERSION_LIBZ
-supports HTTP deflate using libz
-.TP
-.B CURL_VERSION_NTLM
+.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)
-.TP
-.B CURL_VERSION_GSSNEGOTIATE
+.IP CURL_VERSION_GSSNEGOTIATE
supports HTTP GSS-Negotiate (added in 7.10.6)
-.TP
-.B CURL_VERSION_DEBUG
-libcurl was built with extra debug capabilities built-in. This is mainly of
-interest for libcurl hackers. (added in 7.10.6)
-.TP
-.B CURL_VERSION_ASYNCHDNS
+.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)
-.TP
-.B CURL_VERSION_SPNEGO
+.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)
-.PP
-\fIssl_version\fP is an ascii string for the OpenSSL version used. If libcurl
+.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 NTLM authentication. It also
+allows libcurl to use the current user and the current user's password without
+the app having to pass them on. (Added in 7.13.2)
+.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)
+.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 the numerical OpenSSL version value as defined by the
OpenSSL project. If libcurl has no SSL support, this is 0.
-\fIlibz_version\fP is an ascii string (there is no numerical version). If
+\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
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