CURLOPT_FNMATCH_FUNCTION (3) - Linux Manuals
CURLOPT_FNMATCH_FUNCTION: wildcard matching function callback
NAME
CURLOPT_FNMATCH_FUNCTION - wildcard matching function callbackSYNOPSIS
#include <curl/curl.h>
int fnmatch_callback(void *ptr,
const char *pattern,
const char *string);
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FNMATCH_FUNCTION,
fnmatch_callback);
DESCRIPTION
Pass a pointer to your callback function, which should match the prototype shown above.This callback s used for wildcard matching.
Return CURL_FNMATCHFUNC_MATCH if pattern matches the string, CURL_FNMATCHFUNC_NOMATCH if not or CURL_FNMATCHFUNC_FAIL if an error occurred.