CURLOPT_HTTP200ALIASES (3) - Linux Manuals
CURLOPT_HTTP200ALIASES: specify alternative matches for HTTP 200 OK
NAME
CURLOPT_HTTP200ALIASES - specify alternative matches for HTTP 200 OKSYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP200ALIASES,
struct curl_slist *aliases);
DESCRIPTION
Pass a pointer to a linked list of aliases to be treated as valid HTTP 200 responses. Some servers respond with a custom header response line. For example, IceCast servers respond with "ICY 200 OK". By including this string in your list of aliases, the response will be treated as a valid HTTP header line such as "HTTP/1.0 200 OK".The linked list should be a fully valid list of struct curl_slist structs, and be properly filled in. Use curl_slist_append(3) to create the list and curl_slist_free_all(3) to clean up an entire list.
The alias itself is not parsed for any version strings. The protocol is assumed to match HTTP 1.0 when an alias match.