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Linux set ip address using ioctl

/ Published in: C
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  1. static int set_ip_using(const char *name, int c, unsigned long ip)
  2. {
  3.     struct ifreq ifr;
  4.     struct sockaddr_in sin;
  5.  
  6.     safe_strncpy(ifr.ifr_name, name, IFNAMSIZ);
  7.     memset(&sin, 0, sizeof(struct sockaddr));
  8.     sin.sin_family = AF_INET;
  9.     sin.sin_addr.s_addr = ip;
  10.     memcpy(&ifr.ifr_addr, &sin, sizeof(struct sockaddr));
  11.     if (ioctl(skfd, c, &ifr) < 0)
  12. 	return -1;
  13.     return 0;
  14. }

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