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Whenever I try to use raw sockets on WinXP, I get this message:
*** - Win32 error 10014: The system detected an invalid pointer address in attempting to use a pointer argument in a call.
For instance, with these test statements, as soon as I try either the 'bind' or the 'sendto':
(defvar sock nil)
(defvar from-addr nil)
(defvar to-addr nil)
(defparameter message (make-array 100 :element-type '(unsigned-byte 8) :initial-element 45))
(setq sock (socket :INET :DGRAM :IPPROTO-UDP))
(setq from-addr (make-sockaddr :INET '(10 80 100 68)))
(setq to-addr (make-sockaddr :INET '(10 80 100 175)))
(bind sock from-addr)
(sendto sock message to-addr)
Also - I'm not finding a way to put the port number in the address...
Anybody have advice, much appreciated - I'm trying to get a script going at work that will control some equipment via UPD messages. Currenly I'm using another CL on Linux, but I need to deploy on WinXP... So far I'm using CLISP for everything on WinXP.
your make-sockaddr calls are wrong.
they should include both IP address and port.
see modules/rawsock/test.tst for examples.
Wow - thanks!
By running some of the defun's in that code, I found that I could make an address:
(setq to-addr (make-sockaddr :INET '(19 136 10 80 100 175 0 0 0 0 0 0 0 0)))
and that works. (19 times 256 plus 136 equals 5000, the port number I want, then the IP address, then 8 zeros.)
Never would've got that without your help!