CURLINFO_CONDITION_UNMET - get info on unmet time conditional or 304 HTTP response.
#include <curl/curl.h> CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_CONDITION_UNMET, long *unmet);
curl_easy_getinfo options CURLINFO_CONDITION_UNMET(3)
NAME
CURLINFO_CONDITION_UNMET - get info on unmet time conditional or 304
HTTP response.
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 pro-
vided in the previous request did not match (see CURLOPT_TIMECONDI-
TION(3)). Alas, if this returns a 1 you know that the reason you did
not get data in return is because it did not fulfill the condition. The
long this argument points to will get a zero stored if the condition
instead was met. This can also return 1 if the server responded with a
304 HTTP status code, for example after sending a custom "If-Match-*"
header.
PROTOCOLS
HTTP and some
EXAMPLE
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, 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.
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), curl_easy_setopt(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
CURLINFO_CONDITION_UNMET(3)