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curl_version_info(3) [osx man page]

curl_version_info(3)						  libcurl Manual					      curl_version_info(3)

NAME
curl_version_info - returns run-time libcurl version info SYNOPSIS
#include <curl/curl.h> curl_version_info_data *curl_version_info( CURLversion type); DESCRIPTION
Returns a pointer to a filled in struct with information about various run-time features in libcurl. type 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. CURLVERSION_NOW 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 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 **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, 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; age 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. version is just an ascii string for the libcurl version. version_num 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. host 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. features can have none, one or more bits set, and the currently defined bits are: CURL_VERSION_IPV6 supports IPv6 CURL_VERSION_KERBEROS4 supports kerberos4 (when using FTP) CURL_VERSION_SSL supports SSL (HTTPS/FTPS) (Added in 7.10) CURL_VERSION_LIBZ supports HTTP deflate using libz (Added in 7.10) CURL_VERSION_NTLM supports HTTP NTLM (added in 7.10.6) CURL_VERSION_GSSNEGOTIATE supports HTTP GSS-Negotiate (added in 7.10.6) CURL_VERSION_DEBUG libcurl was built with debug capabilities (added in 7.10.6) CURL_VERSION_CURLDEBUG libcurl was built with memory tracking debug capabilities. This is mainly of interest for libcurl hackers. (added in 7.19.6) 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) 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) CURL_VERSION_LARGEFILE libcurl was built with support for large files. (Added in 7.11.1) CURL_VERSION_IDN libcurl was built with support for IDNA, domain names with international letters. (Added in 7.12.0) 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 hav- ing to pass them on. (Added in 7.13.2) CURL_VERSION_CONV libcurl was built with support for character conversions, as provided by the CURLOPT_CONV_* callbacks. (Added in 7.15.4) CURL_VERSION_TLSAUTH_SRP libcurl was built with support for TLS-SRP. (Added in 7.21.4) CURL_VERSION_NTLM_WB libcurl was built with support for NTLM delegation to a winbind helper. (Added in 7.22.0) ssl_version is an ASCII string for the OpenSSL version used. If libcurl has no SSL support, this is NULL. ssl_version_num is the numerical OpenSSL version value as defined by the OpenSSL project. If libcurl has no SSL support, this is 0. libz_version is an ASCII string (there is no numerical version). If libcurl has no libz support, this is NULL. protocols 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. RETURN VALUE
A pointer to a curl_version_info_data struct. SEE ALSO
curl_version(3) libcurl 7.19.6 10 June 2009 curl_version_info(3)

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