CURLOPT_CONV_FROM_UTF8_FUNCcurl_easy_setopt CURLOPT_CONV_FROM_UTF8_FUNCTION(3)NAMECURLOPT_CONV_FROM_UTF8_FUNCTION - convert data from UTF8 to host encod‐
ing
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 proto‐
type 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 parame‐
ter. 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 con‐
version. 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 ALSOCURLOPT_CONV_TO_NETWORK_FUNCTION(3), CURLOPT_CONV_FROM_NETWORK_FUNC‐
TION(3),
libcurl 7.37.0 19 Jun 201CURLOPT_CONV_FROM_UTF8_FUNCTION(3)
