60 lines
1.9 KiB
Groff
60 lines
1.9 KiB
Groff
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.\" generated by cd2nroff 0.1 from CURLINFO_FILETIME.md
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.TH CURLINFO_FILETIME 3 "2025-07-07" libcurl
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.SH NAME
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CURLINFO_FILETIME \- get the remote time of the retrieved document
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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_getinfo(CURL *handle, CURLINFO_FILETIME, long *timep);
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.fi
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.SH 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 ask libcurl to collect this information before the transfer is made,
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by using the \fICURLOPT_FILETIME(3)\fP option or you unconditionally get a \-1 back.
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Consider \fICURLINFO_FILETIME_T(3)\fP instead to be able to extract dates beyond the
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year 2038 on systems using 32\-bit longs (Windows).
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.SH PROTOCOLS
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This functionality affects ftp, http and sftp
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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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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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.fi
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.SH AVAILABILITY
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Added in curl 7.5
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.SH RETURN VALUE
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\fIcurl_easy_getinfo(3)\fP returns a CURLcode indicating success or error.
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CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
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\fIlibcurl\-errors(3)\fP.
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.SH SEE ALSO
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.BR CURLOPT_FILETIME (3),
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.BR curl_easy_getinfo (3),
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.BR curl_easy_setopt (3)
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