[root@G-S dsniff-2.3]# make gcc -g -O2 -D_BSD_SOURCE -D_BSD_SOURCE -D__BSD_SOURCE -D__FAVOR_BSD -DHAVE_NET_ETHERNET_H -DDSNIFF_LIBDIR=\"/usr/local/lib/\" -I. -I./missing -c ./arpspoof.c ./arpspoof.c: In function 'arp_send': ./arpspoof.c:49: warning: passing argument 1 of 'libnet_get_hwaddr' from incompatible pointer type ./arpspoof.c:49: error: too many arguments to function 'libnet_get_hwaddr' ./arpspoof.c:60: warning: passing argument 6 of 'libnet_build_ethernet' from incompatible pointer type ./arpspoof.c:60: error: too few arguments to function 'libnet_build_ethernet' ./arpspoof.c:64: error: 'ETH_H' undeclared (first use in this function) ./arpspoof.c:64: error: (Each undeclared identifier is reported only once ./arpspoof.c:64: error: for each function it appears in.) ./arpspoof.c:64: error: too few arguments to function 'libnet_build_arp' ./arpspoof.c: In function 'main': ./arpspoof.c:181: warning: assignment makes pointer from integer without a cast make: *** [arpspoof.o] Error 1 [root@G-S dsniff-2.3]#