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CURLINFO_FILETIME(3)       curl_easy_getinfo options      CURLINFO_FILETIME(3)

NAME
       CURLINFO_FILETIME - get the remote time of the retrieved document

SYNOPSIS
       #include <curl/curl.h>

       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_FILETIME, long
       *timep);

DESCRIPTION
       Pass a pointer to a long to receive the remote time of the retrieved
       document (in number of seconds since 1 jan 1970 in the GMT/UTC time
       zone). If you get -1, it can be because of many reasons (it might be
       unknown, the server might hide it or the server doesn't support the
       command that tells document time etc) and the time of the document is
       unknown.

       You must tell libcurl to collect this information before the transfer
       is made, by using the CURLOPT_FILETIME(3) option to curl_easy_setopt(3)
       or you will unconditionally get a -1 back.

       Consider using CURLINFO_FILETIME_T(3) to be able to extract dates
       beyond the year 2038 on systems using 32 bit longs.

PROTOCOLS
       HTTP(S), FTP(S), SFTP

EXAMPLE
       curl = curl_easy_init();
       if(curl) {
         curl_easy_setopt(curl, CURLOPT_URL, url);
         /* Ask for filetime */
         curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
         res = curl_easy_perform(curl);
         if(CURLE_OK == res) {
           res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
           if((CURLE_OK == res) && (filetime >= 0)) {
             time_t file_time = (time_t)filetime;
             printf("filetime %s: %s", filename, ctime(&file_time));
           }
         }
         /* always cleanup */
         curl_easy_cleanup(curl);
       }

AVAILABILITY
       Added in 7.5

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

SEE ALSO
       curl_easy_getinfo(3), curl_easy_setopt(3),

libcurl 7.78.0                 November 4, 2020           CURLINFO_FILETIME(3)