ne_set_request_expect100 — function to enable Expect: 100-continue support
#include <ne_request.h>
void ne_set_request_expect100(ne_request *request, int flag);An extension introduced in the HTTP/1.1 specification was
the use of the Expect: 100-continue header.
This header allows an HTTP client to be informed of the expected
response status before the request message body is sent: a useful
optimisation for situations where a large message body is to be
sent. The ne_set_request_expect100 function
can be used to enable this feature by passing the
flag parameter as any non-zero
integer.
Unfortunately, if this header is sent to a server
which is not fully compliant with the HTTP/1.1 specification, a
deadlock occurs resulting in a temporarily "hung" connection.
neon will recover gracefully from this situation, but only after a
15 second timeout. It is highly recommended that this option is
not enabled unless it is known that the server in use correctly
implements Expect: 100-continue
support.