CURLOPT_FNMATCH_DATA(3) - Man pages

CURLOPT_FNMATCH_DATA(3)     Library Functions Manual    CURLOPT_FNMATCH_DATA(3)

NAME
       CURLOPT_FNMATCH_DATA - pointer passed to the fnmatch callback

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FNMATCH_DATA,
                                 void *pointer);

DESCRIPTION
       Pass  a pointer that is untouched by libcurl and passed as the ptr argu-
       ment to the CURLOPT_FNMATCH_FUNCTION(3).

DEFAULT
       NULL

PROTOCOLS
       This functionality affects ftp only

EXAMPLE
       extern int string_match(const char *s1, const char *s2);

       struct local_stuff {
         void *custom;
       };

       static int my_fnmatch(void *clientp,
                             const char *pattern, const char *string)
       {
         struct local_stuff *my = clientp;
         printf("my ptr: %p\n", my->custom);

         if(string_match(pattern, string))
           return CURL_FNMATCHFUNC_MATCH;
         else
           return CURL_FNMATCHFUNC_NOMATCH;
       }

       int main(void)
       {
         struct local_stuff local_data;
         CURL *curl = curl_easy_init();
         if(curl) {
           curl_easy_setopt(curl, CURLOPT_URL, "ftp://ftp.example.com/file*");
           curl_easy_setopt(curl, CURLOPT_WILDCARDMATCH, 1L);
           curl_easy_setopt(curl, CURLOPT_FNMATCH_FUNCTION, my_fnmatch);
           curl_easy_setopt(curl, CURLOPT_FNMATCH_DATA, &local_data);

           curl_easy_perform(curl);
         }
       }

AVAILABILITY
       Added in curl 7.21.0

RETURN VALUE
       curl_easy_setopt(3) returns a CURLcode indicating success or error.

       CURLE_OK (0) means everything was OK, non-zero means an error  occurred,
       see libcurl-errors(3).

SEE ALSO
       CURLOPT_FNMATCH_FUNCTION(3), CURLOPT_WILDCARDMATCH(3)

libcurl                            2026-07-12           CURLOPT_FNMATCH_DATA(3)

Generated by dwww version 1.16 on Sat Oct 3 05:44:59 CEST 2026.