Bug with large POSTs #92
Merged
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For a POST parameter with a large value, libmicrohttpd will call webserver::post_iterator
multiple times with chunks of post data and successive offsets. Currently, set_arg will
overwrites the value. So after all the post_iterator calls, the value will be
set to the last chunk.
This change fixes the set_arg() function(s).. by checking for an existing value and appending the new chunk.
the bug can be tested with the following script.
STR="1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
1234567890abcdefghijklmnopqrstuvwxyz
"
curl -X POST --data "aaa=$STR" http://127.0.0.1:8080/service