e3fe020089
Remove the PROTOCOLS section from the source files completely and instead generate them based on the header data in the curldown files. It also generates TLS backend information for options marked for TLS as protocol. Closes #13175
77 lines
1.8 KiB
Markdown
77 lines
1.8 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLINFO_FILETIME
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_FILETIME (3)
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- curl_easy_getinfo (3)
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- curl_easy_setopt (3)
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Protocol:
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- HTTP
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- FTP
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- SFTP
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---
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# NAME
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CURLINFO_FILETIME - get the remote time of the retrieved document
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_FILETIME, long *timep);
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~~~
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# DESCRIPTION
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Pass a pointer to a long to receive the remote time of the retrieved document
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in number of seconds since January 1 1970 in the GMT/UTC time zone. If you get
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-1, it can be because of many reasons (it might be unknown, the server might
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hide it or the server does not support the command that tells document time
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etc) and the time of the document is unknown.
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You must tell libcurl to collect this information before the transfer is made,
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by using the CURLOPT_FILETIME(3) option to curl_easy_setopt(3) or
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you this unconditionally gets a -1 back.
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Consider using CURLINFO_FILETIME_T(3) to be able to extract dates beyond
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the year 2038 on systems using 32 bit longs (Windows).
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# EXAMPLE
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~~~c
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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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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
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/* Ask for filetime */
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curl_easy_setopt(curl, CURLOPT_FILETIME, 1L);
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res = curl_easy_perform(curl);
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if(CURLE_OK == res) {
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long filetime = 0;
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res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
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if((CURLE_OK == res) && (filetime >= 0)) {
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time_t file_time = (time_t)filetime;
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printf("filetime: %s", ctime(&file_time));
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}
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}
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/* always cleanup */
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curl_easy_cleanup(curl);
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}
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}
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~~~
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# AVAILABILITY
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Added in 7.5
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# RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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