Provided by: libcurl4-doc_8.9.1-2ubuntu2.1_all
NAME
CURLOPT_HTTP09_ALLOWED - allow HTTP/0.9 response
SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long allowed);
DESCRIPTION
Pass the long argument allowed set to 1L to allow HTTP/0.9 responses. An HTTP/0.9 response is a server response entirely without headers and only a body. You can connect to lots of random TCP services and still get a response that curl might consider to be HTTP/0.9!
DEFAULT
0
PROTOCOLS
This functionality affects http only
EXAMPLE
int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode ret; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/"); curl_easy_setopt(curl, CURLOPT_HTTP09_ALLOWED, 1L); ret = curl_easy_perform(curl); } }
HISTORY
curl allowed HTTP/0.9 responses by default before 7.66.0 Since 7.66.0, libcurl requires this option set to 1L to allow HTTP/0.9 responses.
AVAILABILITY
Added in curl 7.64.0
RETURN VALUE
Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_HTTP_VERSION(3), CURLOPT_SSLVERSION(3)