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- .\" generated by cd2nroff 0.1 from CURLOPT_HTTP09_ALLOWED.md
- .TH CURLOPT_HTTP09_ALLOWED 3 "2025-01-17" libcurl
- .SH NAME
- CURLOPT_HTTP09_ALLOWED \- allow HTTP/0.9 response
- .SH SYNOPSIS
- .nf
- #include <curl/curl.h>
- CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long allowed);
- .fi
- .SH DESCRIPTION
- Pass the long argument \fIallowed\fP 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!
- .SH DEFAULT
- 0
- .SH PROTOCOLS
- This functionality affects http only
- .SH EXAMPLE
- .nf
- 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);
- }
- }
- .fi
- .SH 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.
- .SH AVAILABILITY
- Added in curl 7.64.0
- .SH RETURN VALUE
- Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
- .SH SEE ALSO
- .BR CURLOPT_HTTP_VERSION (3),
- .BR CURLOPT_SSLVERSION (3)
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