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 #ifdef WIN32
  20 #define LHNETADDRESSTYPE_INET6_FAMILY 23
  21 #else
  22 #define LHNETADDRESSTYPE_INET6_FAMILY 10
  23 #endif
  24
  25 // compatible with sockaddr_in
  26 typedef struct lhnetaddress_inet4_s
  27 {
  28         unsigned short family; // 2
  29         unsigned short port;
  30         unsigned char address[4];
  31         unsigned char padding[8]; // to match sockaddr_in
  32 }
  33 lhnetaddress_inet4_t;
  34
  35 // compatible with sockaddr_in6
  36 typedef struct lhnetaddress_inet6_s
  37 {
  38         unsigned short family; // 10
  39         unsigned short port;
  40         unsigned int flowinfo;
  41         unsigned short address[8];
  42         unsigned int scope_id;
  43 }
  44 lhnetaddress_inet6_t;
  45
  46 typedef struct lhnetaddress_s
  47 {
  48         int addresstype;
  49         union
  50         {
  51                 lhnetaddress_loop_t loop;
  52                 lhnetaddress_inet4_t inet4;
  53                 lhnetaddress_inet6_t inet6;
  54         }
  55         addressdata;
  56 }
  57 lhnetaddress_t;
  58
  59 int LHNETADDRESS_FromPort(lhnetaddress_t *address, int addresstype, int port);
  60 int LHNETADDRESS_FromString(lhnetaddress_t *address, const char *string, int defaultport);
  61 int LHNETADDRESS_ToString(const lhnetaddress_t *address, char *string, int stringbuffersize, int includeport);
  62 int LHNETADDRESS_GetAddressType(const lhnetaddress_t *address);
  63 int LHNETADDRESS_GetPort(const lhnetaddress_t *address);
  64 int LHNETADDRESS_SetPort(lhnetaddress_t *address, int port);
  65 int LHNETADDRESS_Compare(const lhnetaddress_t *address1, const lhnetaddress_t *address2);
  66
  67 typedef struct lhnetsocket_s
  68 {
  69         lhnetaddress_t address;
  70         int inetsocket;
  71         struct lhnetsocket_s *next, *prev;
  72 }
  73 lhnetsocket_t;
  74
  75 void LHNET_Init(void);
  76 void LHNET_Shutdown(void);
  77 lhnetsocket_t *LHNET_OpenSocket_Connectionless(lhnetaddress_t *address);
  78 void LHNET_CloseSocket(lhnetsocket_t *lhnetsocket);
  79 lhnetaddress_t *LHNET_AddressFromSocket(lhnetsocket_t *sock);
  80 int LHNET_Read(lhnetsocket_t *lhnetsocket, void *content, int maxcontentlength, lhnetaddress_t *address);
  81 int LHNET_Write(lhnetsocket_t *lhnetsocket, const void *content, int contentlength, const lhnetaddress_t *address);
  82
  83 #endif
  84