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Subject: problem in netgraph
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1. when i use printf statement to print my own string with the message in  nge_rcvdata function in ng_echo.c i face the problem thatobject code has not changed. and when i use ngctl write command with the -f filename option it just print the file contents . what is the proper procedure to add your own message which is written in the ng_echo.c file when i use ngctl write command and where the data is stored. 2. where i can find more about the netgraph  the man page help is not enough for the beginner            thanks for ur help               

       niraj


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