mojave man page for curlopt_conv_from_utf8_function

CURLOPT_CONV_FROM_UTF8_FUNCTION(3)			     curl_easy_setopt options				CURLOPT_CONV_FROM_UTF8_FUNCTION(3)

NAME
       CURLOPT_CONV_FROM_UTF8_FUNCTION - convert data from UTF8 to host encoding

SYNOPSIS
       #include <curl/curl.h>

       CURLcode conv_callback(char *ptr, size_t length);

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CONV_FROM_UTF8_FUNCTION,
				 conv_callback);

DESCRIPTION
       Pass a pointer to your callback function, which should match the prototype shown above.

       Applies to non-ASCII platforms. curl_version_info(3) will return the CURL_VERSION_CONV feature bit set if this option is provided.

       The  data to be converted is in a buffer pointed to by the ptr parameter.  The amount of data to convert is indicated by the length parame-
       ter.  The converted data overlays the input data in the buffer pointed to by the ptr parameter. CURLE_OK must be returned  upon	successful
       conversion.  A CURLcode return value defined by curl.h, such as CURLE_CONV_FAILED, should be returned if an error was encountered.

       CURLOPT_CONV_FROM_UTF8_FUNCTION converts to host encoding from UTF8 encoding. It is required only for SSL processing.

       If  you	set  a callback pointer to NULL, or don't set it at all, the built-in libcurl iconv functions will be used.  If HAVE_ICONV was not
       defined when libcurl was built, and no callback has been established, conversion will return the CURLE_CONV_REQD error code.

       If HAVE_ICONV is defined, CURL_ICONV_CODESET_OF_HOST must also be defined.  For example:

	#define CURL_ICONV_CODESET_OF_HOST "IBM-1047"

       The iconv code in libcurl will default the network and UTF8 codeset names as follows:

	#define CURL_ICONV_CODESET_OF_NETWORK "ISO8859-1"

	#define CURL_ICONV_CODESET_FOR_UTF8   "UTF-8"

       You will need to override these definitions if they are different on your system.

DEFAULT
       NULL

PROTOCOLS
       TLS-based protocols.

EXAMPLE
       TODO

AVAILABILITY
       Available only if CURL_DOES_CONVERSIONS was defined when libcurl was built.

RETURN VALUE
       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO
       CURLOPT_CONV_TO_NETWORK_FUNCTION(3), CURLOPT_CONV_FROM_NETWORK_FUNCTION(3),

libcurl 7.54.0							 February 03, 2016				CURLOPT_CONV_FROM_UTF8_FUNCTION(3)