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José Bollo
b4216c60fd
When a connection upgrade is requested and when the request sent an error reply, the response is most of the time already sent when the test on connection->response->upgrade_handler is made, leading to dereferencing NULL. Two possibilities exist: NULL == connection->response || NULL == connection->response->upgÿrade_handler or NULL != connection->response && NULL == connection->response->upgraÿde_handler The first is prefered because it is probably safer to close the connection in that case. Change-Id: Ie6e7fc165f7fe3635ade0952bb34a0b937d38716 Signed-off-by: José Bollo <jobol@nonadev.net> Signed-off-by: Evgeny Grin (Karlson2k) <k2k@narod.ru>
About ===== GNU libmicrohttpd is a GNU package offering a C library that provides a compact API and implementation of an HTTP 1.1 web server (HTTP 1.0 is also supported). GNU libmicrohttpd only implements the HTTP 1.1 protocol. The main application must still provide the application logic to generate the content. Installation ============ If you are using Subversion, run "autoreconf -fi" to create configure. In order to run the testcases, you need a recent version of libcurl. libcurl is not required if you just want to install the library. Especially for development, do use the MHD_USE_ERROR_LOG option to get error messages. Configure options ================= If you are concerned about space, you should set "CFLAGS" to "-Os -fomit-frame-pointer" to have gcc generate tight code. You can use the following options to disable certain MHD features: --disable-https: no HTTPS / TLS / SSL support (significant reduction) --disable-messages: no error messages (they take space!) --disable-postprocessor: no MHD_PostProcessor API --disable-dauth: no digest authentication API --disable-epoll: no support for epoll, even on Linux The resulting binary should be about 30-40k depending on the platform. Portability =========== The latest version of libmicrohttpd will try to avoid SIGPIPE on its sockets. This should work on OS X, Linux and recent BSD systems (at least). On other systems that may trigger a SIGPIPE on send/recv, the main application should install a signal handler to handle SIGPIPE. libmicrohttpd should work well on GNU/Linux, BSD, OS X, W32 and z/OS. Note that HTTPS is not supported on z/OS (yet). We also have reports of users using it on vxWorks and Symbian. Note that on platforms where the compiler does not support the "constructor" attribute, you must call "MHD_init" before using any MHD functions and "MHD_fini" after you are done using MHD. Development Status ================== This is a beta release for libmicrohttpd. Before declaring the library stable, we should have testcases for the following features: - HTTP/1.1 pipelining (need to figure out how to ensure curl pipelines -- and it seems libcurl has issues with pipelining, see http://curl.haxx.se/mail/lib-2007-12/0248.html) - resource limit enforcement - client queuing early response, suppressing 100 CONTINUE - chunked encoding to validate handling of footers - more testing for SSL support - MHD basic and digest authentication In particular, the following functions are not covered by 'make check': - mhd_panic_std (daemon.c); special case (abort) - parse_options (daemon.c) - MHD_set_panic_func (daemon.c) - MHD_get_version (daemon.c)