ioctl SIOCGIFADDR unsupport

[ruijiexie]

#define SIOCGIFADDR 0x8915 /* get PA address */
int ret = file.ioctl(emulator, request, argp);
java.lang.AbstractMethodError: com.github.unidbg.linux.file.UdpSocket: request=0x8915, argp=0xbfffe8d8
at com.github.unidbg.file.AbstractFileIO.ioctl(AbstractFileIO.java:64)
at com.github.unidbg.linux.file.UdpSocket.ioctl(UdpSocket.java:191)
at com.github.unidbg.linux.ARM32SyscallHandler.ioctl(ARM32SyscallHandler.java:2027)
at com.github.unidbg.linux.ARM32SyscallHandler.hook(ARM32SyscallHandler.java:210)
at com.github.unidbg.arm.backend.UnicornBackend$11.hook(UnicornBackend.java:345)