lhnet.h

   1
   2 // Written by Forest Hale 2003-06-15 and placed into public domain.
   3
   4 #ifndef LHNET_H
   5 #define LHNET_H
   6
   7 #define LHNETADDRESSTYPE_NONE 0
   8 #define LHNETADDRESSTYPE_LOOP 1
   9 #define LHNETADDRESSTYPE_INET4 2
  10 #define LHNETADDRESSTYPE_INET6 3
  11
  12 typedef struct lhnetaddress_loop_s
  13 {
  14         unsigned short port;
  15 }
  16 lhnetaddress_loop_t;
  17
  18 #define LHNETADDRESSTYPE_INET4_FAMILY 2
  19 #define LHNETADDRESSTYPE_INET6_FAMILY 10
  20
  21 // compatible with sockaddr_in
  22 typedef struct lhnetaddress_inet4_s
  23 {
  24         unsigned short family; // 2
  25         unsigned short port;
  26         unsigned char address[4];
  27         unsigned char padding[8]; // to match sockaddr_in
  28 }
  29 lhnetaddress_inet4_t;
  30
  31 // compatible with sockaddr_in6
  32 typedef struct lhnetaddress_inet6_s
  33 {
  34         unsigned short family; // 10
  35         unsigned short port;
  36         unsigned int flowinfo;
  37         unsigned short address[8];
  38         unsigned int scope_id;
  39 }
  40 lhnetaddress_inet6_t;
  41
  42 typedef struct lhnetaddress_s
  43 {
  44         int addresstype;
  45         union
  46         {
  47                 lhnetaddress_loop_t loop;
  48                 lhnetaddress_inet4_t inet4;
  49                 lhnetaddress_inet6_t inet6;
  50         }
  51         addressdata;
  52 }
  53 lhnetaddress_t;
  54
  55 int LHNETADDRESS_FromPort(lhnetaddress_t *address, int addresstype, int port);
  56 int LHNETADDRESS_FromString(lhnetaddress_t *address, const char *string, int defaultport);
  57 int LHNETADDRESS_ToString(const lhnetaddress_t *address, char *string, int stringbuffersize, int includeport);
  58 int LHNETADDRESS_GetAddressType(const lhnetaddress_t *address);
  59 int LHNETADDRESS_GetPort(const lhnetaddress_t *address);
  60 int LHNETADDRESS_SetPort(lhnetaddress_t *address, int port);
  61 int LHNETADDRESS_Compare(const lhnetaddress_t *address1, const lhnetaddress_t *address2);
  62
  63 typedef struct lhnetsocket_s
  64 {
  65         lhnetaddress_t address;
  66         int inetsocket;
  67         struct lhnetsocket_s *next, *prev;
  68 }
  69 lhnetsocket_t;
  70
  71 void LHNET_Init(void);
  72 void LHNET_Shutdown(void);
  73 lhnetsocket_t *LHNET_OpenSocket_Connectionless(lhnetaddress_t *address);
  74 void LHNET_CloseSocket(lhnetsocket_t *lhnetsocket);
  75 lhnetaddress_t *LHNET_AddressFromSocket(lhnetsocket_t *sock);
  76 int LHNET_Read(lhnetsocket_t *lhnetsocket, void *content, int maxcontentlength, lhnetaddress_t *address);
  77 int LHNET_Write(lhnetsocket_t *lhnetsocket, const void *content, int contentlength, const lhnetaddress_t *address);
  78
  79 #endif
  80