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52 lines
1.5 KiB
Groff
52 lines
1.5 KiB
Groff
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.\" generated by cd2nroff 0.1 from CURLOPT_TIMECONDITION.md
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.TH CURLOPT_TIMECONDITION 3 "March 15 2024" libcurl
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.SH NAME
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CURLOPT_TIMECONDITION \- select condition for a time request
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMECONDITION, long cond);
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.fi
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.SH DESCRIPTION
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Pass a long as parameter. This defines how the \fICURLOPT_TIMEVALUE(3)\fP time
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value is treated. You can set this parameter to \fICURL_TIMECOND_IFMODSINCE\fP
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or \fICURL_TIMECOND_IFUNMODSINCE\fP.
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The last modification time of a file is not always known and in such instances
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this feature has no effect even if the given time condition would not have
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been met. \fIcurl_easy_getinfo(3)\fP with the \fICURLINFO_CONDITION_UNMET\fP
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option can be used after a transfer to learn if a zero\-byte successful
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\&"transfer" was due to this condition not matching.
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.SH DEFAULT
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CURL_TIMECOND_NONE (0)
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.SH PROTOCOLS
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HTTP, FTP, RTSP, and FILE
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* January 1, 2020 is 1577833200 */
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curl_easy_setopt(curl, CURLOPT_TIMEVALUE, 1577833200L);
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/* If-Modified-Since the above time stamp */
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curl_easy_setopt(curl, CURLOPT_TIMECONDITION,
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(long)CURL_TIMECOND_IFMODSINCE);
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/* Perform the request */
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curl_easy_perform(curl);
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}
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}
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.fi
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.SH AVAILABILITY
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Always
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.SH RETURN VALUE
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Returns CURLE_OK
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.SH SEE ALSO
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.BR CURLINFO_FILETIME (3),
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.BR CURLOPT_TIMEVALUE (3)
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