GNURLOPT_DIRLISTONLY(3)

NAME
CURLOPT_DIRLISTONLY - ask for names only in a directory listing

SYNOPSIS
#include <gnurl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_DIRLISTONLY, long listonly);

DESCRIPTION
For FTP and SFTP based URLs a parameter set to 1 tells the library to list the names of files in a directory, rather than performing a full directory listing that would normally include file sizes, dates etc. For POP3 a parameter of 1 tells the library to list the email message or messages on the POP3 server. This can be used to change the default behaviour of libcurl, when combined with a URL that contains a message ID, to perform a "scan listing" which can then be used to determine the size of an email. Note: For FTP this causes a NLST command to be sent to the FTP server. Beware that some FTP servers list only files in their response to NLST; they might not include subdirectories and symbolic links. Setting this option to 1 also implies a directory listing even if the URL doesn't end with a slash, which otherwise is necessary. Do NOT use this option if you also use CURLOPT_WILDCARDMATCH(3) as it will effectively break that feature then.

DEFAULT
0, disabled

PROTOCOLS
FTP, SFTP and POP3

EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/dir/");
  /* list only */
  curl_easy_setopt(curl, CURLOPT_DIRLISTONLY, 1L);
  ret = curl_easy_perform(curl);
  curl_easy_cleanup(curl);
}

AVAILABILITY
This option was known as CURLOPT_FTPLISTONLY up to 7.16.4. POP3 is supported since 7.21.5.

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

SEE ALSO
CURLOPT_CUSTOMREQUEST(3),