CURLOPT_FILETIME - get the modification time of the remote resource
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FILETIME, long gettime);
CURLOPT_FILETIME(3)        curl_easy_setopt options        CURLOPT_FILETIME(3)
NAME
       CURLOPT_FILETIME - get the modification time of the remote resource
SYNOPSIS
       #include <curl/curl.h>
       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FILETIME, long gettime);
DESCRIPTION
       Pass  a  long. If it is 1, libcurl will attempt to get the modification
       time of the remote document in this operation. This requires  that  the
       remote server sends the time or replies to a time querying command. The
       curl_easy_getinfo(3) function with  the  CURLINFO_FILETIME(3)  argument
       can be used after a transfer to extract the received time (if any).
DEFAULT
       0
PROTOCOLS
       HTTP, FTP, SFTP, FILE
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
       Always, for SFTP since 7.49.0
RETURN VALUE
       Returns CURLE_OK
ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:
       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | web/curl         |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
SEE ALSO
       curl_easy_getinfo(3),
NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.
       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source       was       downloaded      from       https://curl.se/down-
       load/curl-7.83.1.tar.bz2.
       Further information about this software can be found on the open source
       community website at http://curl.haxx.se/.
libcurl 7.83.1                 November 26, 2021           CURLOPT_FILETIME(3)