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| .TH CURLOPT_ALTSVC 3 "November 04, 2020" "libcurl 7.78.0" "curl_easy_setopt options" |
| |
| .SH NAME |
| CURLOPT_ALTSVC \- set alt-svc cache file name |
| .SH SYNOPSIS |
| .nf |
| #include <curl/curl.h> |
| |
| CURLcode curl_easy_setopt(CURL *handle, CURLOPT_ALTSVC, char *filename); |
| .fi |
| .SH DESCRIPTION |
| Pass in a pointer to a \fIfilename\fP 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 \fBCURLALTSVC_READONLYFILE\fP is set in |
| \fICURLOPT_ALTSVC_CTRL(3)\fP. |
| |
| Specify a blank file name ("") to make libcurl not load from a file at all. |
| .SH DEFAULT |
| NULL. The alt-svc cache is not read nor written to file. |
| .SH PROTOCOLS |
| HTTPS |
| .SH EXAMPLE |
| .nf |
| CURL *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); |
| } |
| .fi |
| .SH AVAILABILITY |
| Added in 7.64.1 |
| .SH RETURN VALUE |
| Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. |
| .SH "SEE ALSO" |
| .BR CURLOPT_ALTSVC_CTRL "(3), " CURLOPT_CONNECT_TO "(3), " CURLOPT_RESOLVE "(3), " |
| .BR CURLOPT_COOKIEFILE "(3), " |
