curl_unescape (3) - Linux Manuals
curl_unescape: URL decodes the given string
NAME
curl_unescape - URL decodes the given stringSYNOPSIS
#include <curl/curl.h>char *curl_unescape( char *url, int length );
DESCRIPTION
Obsolete function. Use curl_easy_unescape(3) instead!This function will convert the given URL encoded input string to a "plain string" and return that as a new allocated string. All input characters that are URL encoded (%XX where XX is a two-digit hexadecimal number) will be converted to their plain text versions.
If the 'length' argument is set to 0, curl_unescape() will use strlen() on the input 'url' string to find out the size.
You must curl_free() the returned string when you're done with it.