CURLINFO_CONDITION_UNMET(3)

1CURLINFO_CONDITION_UNMET(3)curl_easy_getinfo optionsCURLINFO_CONDITION_UNMET(3)
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NAME

6       CURLINFO_CONDITION_UNMET - get info on unmet time conditional
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SYNOPSIS

9       #include <curl/curl.h>
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11       CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONDITION_UNMET, long
12       *unmet);
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DESCRIPTION

15       Pass a pointer to a long to receive the number 1 if the condition  pro‐
16       vided  in  the  previous  request  didn't match (see CURLOPT_TIMECONDI‐
17       TION(3)). Alas, if this returns a 1 you know that the reason you didn't
18       get data in return is because it didn't fulfill the condition. The long
19       this argument points to will get a zero stored if the condition instead
20       was met.
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PROTOCOLS

23       HTTP and some
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EXAMPLE

26       CURL *curl = curl_easy_init();
27       if(curl) {
28         curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
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30         /* January 1, 2020 is 1577833200 */
31         curl_easy_setopt(curl, CURLOPT_TIMEVALUE, 1577833200L);
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33         /* If-Modified-Since the above time stamp */
34         curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
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36         /* Perform the request */
37         res = curl_easy_perform(curl);
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39         if(!res) {
40           /* check the time condition */
41           long unmet;
42           res = curl_easy_getinfo(curl, CURLINFO_CONDITION_UNMET, &unmet);
43           if(!res) {
44             printf("The time condition was %sfulfilled\n", unmet?"NOT":"");
45           }
46         }
47       }
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AVAILABILITY

50       Added in 7.19.4
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RETURN VALUE

53       Returns  CURLE_OK  if the option is supported, and CURLE_UNKNOWN_OPTION
54       if not.
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