1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
2 "http://www.w3.org/TR/html4/loose.dtd">
4 <title>CURLOPT_TIMECONDITION man page</title>
5 <meta name="generator" content="roffit">
6 <STYLE type="text/css">
12 P.level0, pre.level0 {
16 P.level1, pre.level1 {
20 P.level2, pre.level2 {
37 background-color: #e0e0e0;
43 font-family: monospace;
53 <p class="level0"><a name="NAME"></a><h2 class="nroffsh">NAME</h2>
54 <p class="level0">CURLOPT_TIMECONDITION - select condition for a time request <a name="SYNOPSIS"></a><h2 class="nroffsh">SYNOPSIS</h2>
55 <p class="level0">#include <curl/curl.h>
56 <p class="level0">CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMECONDITION, long cond); <a name="DESCRIPTION"></a><h2 class="nroffsh">DESCRIPTION</h2>
57 <p class="level0">Pass a long as parameter. This defines how the <a Class="emphasis" href="./CURLOPT_TIMEVALUE.html">CURLOPT_TIMEVALUE</a> time value is treated. You can set this parameter to <span Class="emphasis">CURL_TIMECOND_IFMODSINCE</span> or <span Class="emphasis">CURL_TIMECOND_IFUNMODSINCE</span>.
58 <p class="level0">The last modification time of a file is not always known and in such instances this feature will have no effect even if the given time condition would not have been met. <span Class="emphasis">curl_easy_getinfo(3)</span> with the <span Class="emphasis">CURLINFO_CONDITION_UNMET</span> option can be used after a transfer to learn if a zero-byte successful "transfer" was due to this condition not matching. <a name="DEFAULT"></a><h2 class="nroffsh">DEFAULT</h2>
59 <p class="level0">CURL_TIMECOND_NONE (0) <a name="PROTOCOLS"></a><h2 class="nroffsh">PROTOCOLS</h2>
60 <p class="level0">HTTP, FTP, RTSP, and FILE <a name="EXAMPLE"></a><h2 class="nroffsh">EXAMPLE</h2>
61 <p class="level0"><pre class="level0">
62 CURL *curl = curl_easy_init();
64 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
66 /* January 1, 2020 is 1577833200 */
67 curl_easy_setopt(curl, CURLOPT_TIMEVALUE, 1577833200L);
69 /* If-Modified-Since the above time stamp */
70 curl_easy_setopt(curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
72 /* Perform the request */
73 curl_easy_perform(curl);
77 <p class="level0"><a name="AVAILABILITY"></a><h2 class="nroffsh">AVAILABILITY</h2>
78 <p class="level0">Always <a name="RETURN"></a><h2 class="nroffsh">RETURN VALUE</h2>
79 <p class="level0">Returns CURLE_OK <a name="SEE"></a><h2 class="nroffsh">SEE ALSO</h2>
80 <p class="level0"><a Class="manpage" href="./CURLOPT_TIMEVALUE.html">CURLOPT_TIMEVALUE</a><p class="roffit">
81 This HTML page was made with <a href="http://daniel.haxx.se/projects/roffit/">roffit</a>.