Provided by: libcurl4-doc_7.58.0-2ubuntu3.24_all 

NAME
CURLINFO_CONDITION_UNMET - get info on unmet time conditional
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONDITION_UNMET, long *unmet);
DESCRIPTION
Pass a pointer to a long to receive the number 1 if the condition provided in the previous request didn't
match (see CURLOPT_TIMECONDITION(3)). Alas, if this returns a 1 you know that the reason you didn't get
data in return is because it didn't fulfill the condition. The long ths argument points to will get a
zero stored if the condition instead was met.
PROTOCOLS
HTTP and some
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://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, CURL_TIMECOND_IFMODSINCE);
/* Perform the request */
res = curl_easy_perform(curl);
if(!res) {
/* check the time condition */
long unmet;
res = curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &unmet);
if(!res) {
printf("The time condition was %sfulfilled\n", unmet?"NOT":"");
}
}
}
AVAILABILITY
Added in 7.19.4
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 7.58.0 May 06, 2017 CURLINFO_CONDITION_UNMET(3)