NAME

       CURLOPT_TIMECONDITION - select condition for a time request

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMECONDITION, long cond);

DESCRIPTION

       Pass  a  long  as parameter. This defines how the CURLOPT_TIMEVALUE(3) time value is treated. You can set
       this parameter to CURL_TIMECOND_IFMODSINCE or CURL_TIMECOND_IFUNMODSINCE.

       The last modification time of a file is not always known and in such instances this feature has no effect
       even  if  the  given  time  condition  would  not  have   been   met.   curl_easy_getinfo(3)   with   the
       CURLINFO_CONDITION_UNMET  option  can  be  used  after  a  transfer  to  learn  if a zero-byte successful
       "transfer" was due to this condition not matching.

DEFAULT

       CURL_TIMECOND_NONE (0)

PROTOCOLS

       HTTP, FTP, RTSP, and FILE

EXAMPLE

       int main(void)
       {
         CURL *curl = curl_easy_init();
         if(curl) {
           curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");

           /* January 1, 2020 is 1577833200 */
           curl_easy_setopt(curl, CURLOPT_TIMEVALUE, 1577833200L);

           /* If-Modified-Since the above time stamp */
           curl_easy_setopt(curl, CURLOPT_TIMECONDITION,
                            (long)CURL_TIMECOND_IFMODSINCE);

           /* Perform the request */
           curl_easy_perform(curl);
         }
       }

AVAILABILITY

       Always

RETURN VALUE

       Returns CURLE_OK

SEE ALSO

       CURLOPT_TIMEVALUE(3), CURLINFO_FILETIME(3)

ibcurl 8.5.0                                    December 04, 2023                       CURLOPT_TIMECONDITION(3)