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.\" generated by cd2nroff 0.1 from CURLOPT_FNMATCH_DATA.md
.TH CURLOPT_FNMATCH_DATA 3 "2025-06-27" libcurl
.SH NAME
CURLOPT_FNMATCH_DATA \- pointer passed to the fnmatch callback
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FNMATCH_DATA,
void *pointer);
.fi
.SH DESCRIPTION
Pass a pointer that is untouched by libcurl and passed as the ptr argument to
the \fICURLOPT_FNMATCH_FUNCTION(3)\fP.
.SH DEFAULT
NULL
.SH PROTOCOLS
This functionality affects ftp only
.SH EXAMPLE
.nf
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);
}
}
.fi
.SH AVAILABILITY
Added in curl 7.21.0
.SH RETURN VALUE
\fIcurl_easy_setopt(3)\fP returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLOPT_FNMATCH_FUNCTION (3),
.BR CURLOPT_WILDCARDMATCH (3)