1 #include <sys/socket.h>
 2 #include <netinet/in.h>
 3 #include <arpa/inet.h>
 4 #include <libnet.h>
 5 #include <unistd.h>
 6 #include <stdio.h>
 7 #include <string.h>
 8 #include <sys/errno.h>
 9 #include <stdlib.h>
10 
11 #define ETH    "enp0s25"
12 
13 void err_sys(const char *msg)
14 {
15     printf("%s:%s\n" ,msg, strerror(errno));
16     exit(0);
17 }
18 int main(int argc, char*argv)
19 {
20     libnet_t * lib;
21     char err_buf[50];
22 
23     if((lib = libnet_init(LIBNET_LINK, "enp0s25", err_buf)) == NULL)
24     {
25         printf("libnet_init error : %s\n", err_buf);
26         exit(0);
27     }
28 
29     return 0;
30 }