include/netinet/in.h

   1 /*
   2 netinet/in.h
   3 */
   4
   5 #ifndef _NETINET__IN_H
   6 #define _NETINET__IN_H
   7
   8 /* Can we include <stdint.h> here or do we need an additional header that is
   9  * safe to include?
  10  */
  11 #include <stdint.h>
  12
  13 /* Open Group Base Specifications Issue 6 (not complete) */
  14 #define    INADDR_ANY              (uint32_t)0x00000000
  15 #define    INADDR_BROADCAST        (uint32_t)0xFFFFFFFF
  16 #define    INADDR_LOOPBACK         (uint32_t)0x7F000001
  17
  18 #define    IN_LOOPBACKNET          127
  19
  20 #define       IPPORT_RESERVED         1024
  21
  22 typedef uint16_t        in_port_t;
  23
  24 #ifndef _IN_ADDR_T
  25 #define _IN_ADDR_T
  26 typedef uint32_t        in_addr_t;
  27 #endif /* _IN_ADDR_T */
  28
  29 #ifndef _SA_FAMILY_T
  30 #define _SA_FAMILY_T
  31 /* Should match corresponding typedef in <sys/socket.h> */
  32 typedef uint8_t         sa_family_t;
  33 #endif /* _SA_FAMILY_T */
  34
  35 /* Protocols */
  36 #define IPPROTO_IP      0       /* Dummy protocol */
  37 #define IPPROTO_ICMP    1       /* ICMP */
  38 #define IPPROTO_TCP     6       /* TCP */
  39 #define IPPROTO_EGP     8       /* exterior gateway protocol */
  40 #define IPPROTO_UDP     17      /* UDP */
  41
  42 /* setsockopt options at IP level */
  43 #define IP_ADD_MEMBERSHIP       12
  44 #define IP_DROP_MEMBERSHIP      13
  45
  46 #ifndef _STRUCT_IN_ADDR
  47 #define _STRUCT_IN_ADDR
  48 struct in_addr
  49 {
  50         in_addr_t       s_addr;
  51 };
  52 #endif
  53
  54 struct sockaddr_in
  55 {
  56         sa_family_t     sin_family;
  57         in_port_t       sin_port;
  58         struct in_addr  sin_addr;
  59 };
  60
  61 struct ip_mreq
  62 {
  63         struct  in_addr imr_multiaddr;
  64         struct  in_addr imr_interface;
  65 };
  66
  67 /*
  68  * IPv6 is not supported, but some programs need these declarations
  69  * nevertheless; these declarations are based on
  70  * http://www.opengroup.org/onlinepubs/000095399/basedefs/netinet/in.h.html
  71  */
  72 struct in6_addr
  73 {
  74         uint8_t s6_addr[16];
  75 };
  76
  77 struct sockaddr_in6
  78 {
  79         sa_family_t     sin6_family;
  80         in_port_t       sin6_port;
  81         uint32_t        sin6_flowinfo;
  82         struct in6_addr sin6_addr;
  83         uint32_t        sin6_scope_id;
  84 };
  85
  86 #define INET6_ADDRSTRLEN        46
  87
  88 /* Definitions that are not part of the Open Group Base Specifications */
  89 #define IN_CLASSA(i)    (((uint32_t)(i) & 0x80000000) == 0)
  90 #define IN_CLASSA_NET   0xff000000
  91 #define IN_CLASSA_NSHIFT 24
  92
  93 #define IN_CLASSB(i)    (((uint32_t)(i) & 0xc0000000) == 0x80000000)
  94 #define IN_CLASSB_NET   0xffff0000
  95 #define IN_CLASSB_NSHIFT 16
  96
  97 #define IN_CLASSC(i)    (((uint32_t)(i) & 0xe0000000) == 0xc0000000)
  98 #define IN_CLASSC_NET   0xffffff00
  99 #define IN_CLASSC_NSHIFT 8
 100
 101 #define IN_CLASSD(i)    (((uint32_t)(i) & 0xf0000000) == 0xe0000000)
 102 #define IN_CLASSD_NET   0xf0000000
 103 #define IN_CLASSD_NSHIFT 28
 104
 105 #endif /* _NETINET__IN_H */