CURLOPT_ALTSVC - Online Linux Manual PageSection : 3
Updated : September 08, 2021
Source : libcurl 7.82.0
Note : curl_easy_setopt options
NAMECURLOPT_ALTSVC − alt-svc cache file name
SYNOPSIS#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ALTSVC, char *filename);
DESCRIPTIONPass in a pointer to a filename to instruct libcurl to use that file as the Alt-Svc cache to read existing cache contents from and possibly also write it back to a after a transfer, unless CURLALTSVC_READONLYFILE is set in CURLOPT_ALTSVC_CTRL(3). Specify a blank file name ("") to make libcurl not load from a file at all.
DEFAULTNULL. The alt-svc cache is not read nor written to file.
PROTOCOLSHTTPS
EXAMPLECURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_ALTSVC_CTRL, CURLALTSVC_H1);
curl_easy_setopt(curl, CURLOPT_ALTSVC, "altsvc-cache.txt");
curl_easy_perform(curl);
}
AVAILABILITYAdded in 7.64.1
RETURN VALUEReturns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSOCURLOPT_ALTSVC_CTRL(3), CURLOPT_CONNECT_TO (3), CURLOPT_RESOLVE (3)," CURLOPT_COOKIEFILE(3)," 0
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