I tried your suggestion, it has type declaration conflicts error because the type defined in header types.h are different for src_ip,src_port...
I even tried the same type declared in types.h as: 
int p0fq(_s32 p0f_socket, _u32 src_ip, _u16 s_port, _u32 dst_ip, _u16 
+d_port)

[download]

Perl complains that the p0fq funcion not defined.I will just leave this problem alone for a while before I gain more knowledge about Perl and C, thanks :)

In reply to Re^4: How to use Inline::C properly by macli
in thread How to use Inline::C properly by macli

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