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126 lines
4.1 KiB
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126 lines
4.1 KiB
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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curl_version_info - returns run-time libcurl version info
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</PRE>
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<H2>SYNOPSIS</H2><PRE>
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<B>#include</B> <B><curl/curl.h></B>
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<B>curl_version_info_data</B> <B>*curl_version_info(</B> <B>CURLversion</B>
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<I>type</I><B>);</B>
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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Returns a pointer to a filled in struct with information
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about various run-time features in libcurl. <I>type</I> should be
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set to the version of this functionality by the time you
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write your program. This way, libcurl will always return a
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proper struct that your program understands, while pro-
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grams in the future might get an different struct.
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CURLVERSION_NOW will be the most recent one for the
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library you have installed:
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data = curl_version_info(CURLVERSION_NOW);
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Applications should use this information to judge if
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things are possible to do or not, instead of using com-
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pile-time checks, as dynamic/DLL libraries can be changed
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independent of applications.
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The curl_version_info_data struct looks like this
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typedef struct {
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CURLversion age; /* 0 - this kind of struct */
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const char *version; /* human readable string */
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unsigned int version_num; /* numeric representation */
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const char *host; /* human readable string */
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int features; /* bitmask, see below */
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char *ssl_version; /* human readable string */
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long ssl_version_num; /* number */
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char *libz_version; /* human readable string */
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const char *protocols[]; /* list of protocols */
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} curl_version_info_data;
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<I>age</I> describes what kind of struct this is. It is always 0
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now. In a future libcurl, if this struct changes, this age
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counter may be increased, and then the struct for number 1
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will look different (except for this first struct field).
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<I>version</I> is just an ascii string for the libcurl version.
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<I>version</I><B>_</B><I>num</I> is a 6 digit hexadecimal number created like
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this: <2 digits major number> | <2 digits minor number> |
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<2 digits patch number>. Version 7.9.8 is therefore
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returned as 0x070908.
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<I>host</I> is an ascii string showing what host information that
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<I>features</I> can have none, one or more bits set, and the cur-
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rently defined bits are:
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<B>CURL_VERSION_IPV6</B>
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supports IPv6
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<B>CURL_VERSION_KERBEROS4</B>
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supports kerberos4 (when using FTP)
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<B>CURL_VERSION_SSL</B>
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supports SSL (HTTPS/FTPS)
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<B>CURL_VERSION_LIBZ</B>
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supports HTTP deflate using libz
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<I>ssl</I><B>_</B><I>version</I> is an ascii string for the OpenSSL version
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used. If libcurl has no SSL support, this is NULL.
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<I>ssl</I><B>_</B><I>version</I><B>_</B><I>num</I> is the numerical OpenSSL version value as
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defined by the OpenSSL project. If libcurl has no SSL sup-
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port, this is 0.
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<I>libz</I><B>_</B><I>version</I> is an ascii string (there is no numerical
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version). If libcurl has no libz support, this is NULL.
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<I>protocols</I> is a pointer to an array of char * pointers,
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containing the names protocols that libcurl supports
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(using lowercase letters). The protocol names are the same
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as would be used in URLs. The array is terminated by a
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NULL entry.
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</PRE>
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<H2>RETURN VALUE</H2><PRE>
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A pointer to a curl_version_info_data struct.
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</PRE>
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<H2>SEE ALSO</H2><PRE>
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<I>curl</I><B>_</B><I>version(3)</I>
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</PRE>
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<H2>BUGS</H2><PRE>
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No known bugs.
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</PRE>
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<HR>
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<ADDRESS>
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Man(1) output converted with
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<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
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</ADDRESS>
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