Hi,
If the size of the post data isn't yet known when starting the HTTP POST
request (i.e. when using chunked transfer encoding), the variable postsize
is 0 at line 1480 (in 7.19.7) in lib/http.c. With the current if statement
at that line, no Expect: 100-continue header is emitted under that
condition, even if the post data can be potentially huge.
The attached patch is a sample of how this could be fixed, but I'm not
totally sure if this is the right approach. Would it perhaps be better to
make a distinction between actual size 0 and size unknown earlier in the
function?
// Martin
--- curl-7.19.7-orig/lib/http.c 2009-10-31 00:24:48.000000000 +0200
+++ curl-7.19.7/lib/http.c 2009-11-30 16:30:44.000000000 +0200
@@ -2837,7 +2844,7 @@
the somewhat bigger ones we allow the app to disable it. Just make
sure that the expect100header is always set to the preferred value
here. */
- if(postsize > TINY_INITIAL_POST_SIZE) {
+ if(postsize > TINY_INITIAL_POST_SIZE || postsize == 0) {
result = expect100(data, conn, req_buffer);
if(result)
return result;
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