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.\" generated by cd2nroff 0.1 from CURLOPT_HTTP09_ALLOWED.md
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.TH CURLOPT_HTTP09_ALLOWED 3 "2024-07-29" libcurl
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.SH NAME
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CURLOPT_HTTP09_ALLOWED \- allow HTTP/0.9 response
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long allowed);
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.fi
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.SH DESCRIPTION
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Pass the long argument \fIallowed\fP set to 1L to allow HTTP/0.9 responses.
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An HTTP/0.9 response is a server response entirely without headers and only a
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body. You can connect to lots of random TCP services and still get a response
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that curl might consider to be HTTP/0.9!
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.SH DEFAULT
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0
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.SH PROTOCOLS
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This functionality affects http only
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode ret;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_HTTP09_ALLOWED, 1L);
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ret = curl_easy_perform(curl);
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}
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}
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.fi
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.SH HISTORY
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curl allowed HTTP/0.9 responses by default before 7.66.0
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Since 7.66.0, libcurl requires this option set to 1L to allow HTTP/0.9
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responses.
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.SH AVAILABILITY
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Added in curl 7.64.0
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.SH RETURN VALUE
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Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH SEE ALSO
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.BR CURLOPT_HTTP_VERSION (3),
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.BR CURLOPT_SSLVERSION (3)
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