NAME

       CURLOPT_WILDCARDMATCH - directory wildcard transfers

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_WILDCARDMATCH, long onoff);

DESCRIPTION

       Set  onoff  to  1 if you want to transfer multiple files according to a file name pattern.
       The pattern can be specified as part of the CURLOPT_URL(3) option, using  an  fnmatch-like
       pattern (Shell Pattern Matching) in the last part of URL (file name).

       By  default,  libcurl  uses its internal wildcard matching implementation. You can provide
       your own matching function by the CURLOPT_FNMATCH_FUNCTION(3) option.

       A brief introduction of its syntax follows:

              * - ASTERISK
                     ftp://example.com/some/path/*.txt (for all txt's from the  root  directory).
                     Only two asterisks are allowed within the same pattern string.

              ? - QUESTION MARK
                     Question mark matches any (exactly one) character.

                     ftp://example.com/some/path/photo?.jpeg

              [ - BRACKET EXPRESSION
                     The  left bracket opens a bracket expression. The question mark and asterisk
                     have no special meaning in a bracket  expression.  Each  bracket  expression
                     ends  by  the right bracket and matches exactly one character. Some examples
                     follow:

                     [a-zA-Z0-9] or [f-gF-G] - character interval

                     [abc] - character enumeration

                     [^abc] or [!abc] - negation

                     [[:name:]] class  expression.  Supported  classes  are  alnum,lower,  space,
                     alpha, digit, print, upper, blank, graph, xdigit.

                     [][-!^]  -  special  case  -  matches  only '-', ']', '[', '!' or '^'. These
                     characters have no special purpose.

                     [\[\]\\] - escape syntax. Matches '[', ']' or '\'.

                     Using the rules above, a file name pattern can be constructed:

                     ftp://example.com/some/path/[a-z[:upper:]\\].jpeg

PROTOCOLS

       This feature is only supported for FTP download.

EXAMPLE

         /* initialization of easy handle */
         handle = curl_easy_init();

         /* turn on wildcard matching */
         curl_easy_setopt(handle, CURLOPT_WILDCARDMATCH, 1L);

         /* callback is called before download of concrete file started */
         curl_easy_setopt(handle, CURLOPT_CHUNK_BGN_FUNCTION, file_is_coming);

         /* callback is called after data from the file have been transferred */
         curl_easy_setopt(handle, CURLOPT_CHUNK_END_FUNCTION, file_is_downloaded);

         /* See more on https://curl.se/libcurl/c/ftp-wildcard.html */

AVAILABILITY

       Added in 7.21.0

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_FNMATCH_FUNCTION(3), CURLOPT_URL(3),