src/network/inet_legacy.c

   1 #include <sys/socket.h>
   2 #include <netinet/in.h>
   3 #include <arpa/inet.h>
   4
   5 in_addr_t inet_network(const char *p)
   6 {
   7         return ntohl(inet_addr(p));
   8 }
   9
  10 struct in_addr inet_makeaddr(in_addr_t n, in_addr_t h)
  11 {
  12         if (n < 256) h |= n<<24;
  13         else if (n < 65536) h |= n<<16;
  14         else h |= n<<8;
  15         return (struct in_addr){ h };
  16 }
  17
  18 in_addr_t inet_lnaof(struct in_addr in)
  19 {
  20         uint32_t h = in.s_addr;
  21         if (h>>24 < 128) return h & 0xffffff;
  22         if (h>>24 < 192) return h & 0xffff;
  23         return h & 0xff;
  24 }
  25
  26 in_addr_t inet_netof(struct in_addr in)
  27 {
  28         uint32_t h = in.s_addr;
  29         if (h>>24 < 128) return h >> 24;
  30         if (h>>24 < 192) return h >> 16;
  31         return h >> 8;
  32 }