1CURLOPT_FILETIME(3) curl_easy_setopt options CURLOPT_FILETIME(3)
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6 CURLOPT_FILETIME - get the modification time of the remote resource
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9 #include <curl/curl.h>
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11 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FILETIME, long get‐
12 time);
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15 Pass a long. If it is 1, libcurl will attempt to get the modification
16 time of the remote document in this operation. This requires that the
17 remote server sends the time or replies to a time querying command. The
18 curl_easy_getinfo(3) function with the CURLINFO_FILETIME(3) argument
19 can be used after a transfer to extract the received time (if any).
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22 0
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25 HTTP, FTP, SFTP, FILE
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28 curl = curl_easy_init();
29 if(curl) {
30 curl_easy_setopt(curl, CURLOPT_URL, url);
31 /* Ask for filetime */
32 curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
33 res = curl_easy_perform(curl);
34 if(CURLE_OK == res) {
35 res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
36 if((CURLE_OK == res) && (filetime >= 0)) {
37 time_t file_time = (time_t)filetime;
38 printf("filetime %s: %s", filename, ctime(&file_time));
39 }
40 }
41 /* always cleanup */
42 curl_easy_cleanup(curl);
43 }
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46 Always, for SFTP since 7.49.0
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49 Returns CURLE_OK
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52 curl_easy_getinfo(3),
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56libcurl 7.71.1 April 03, 2017 CURLOPT_FILETIME(3)