com32/include/netinet/in.h

   1 #ifndef _NETINET_IN_H
   2 #define _NETINET_IN_H
   3
   4 /* COM32 will be running on an i386 platform */
   5
   6 #include <stdint.h>
   7 #include <klibc/compiler.h>
   8
   9 #define __htons_macro(v) ((uint16_t)                                    \
  10                           (((uint16_t)(v) << 8) |                       \
  11                            ((uint16_t)(v) >> 8)))
  12
  13 static inline __constfunc uint16_t __htons(uint16_t v)
  14 {
  15     return __htons_macro(v);
  16 }
  17
  18 #define htons(x) (__builtin_constant_p(x) ? __htons_macro(x) :  __htons(x))
  19 #define ntohs(x) htons(x)
  20
  21 #define __htonl_macro(v) ((uint32_t)                                    \
  22                           ((((uint32_t)(v) & 0x000000ff) << 24) |       \
  23                            (((uint32_t)(v) & 0x0000ff00) << 8)  |       \
  24                           (((uint32_t)(v) & 0x00ff0000) >> 8)  |        \
  25                            (((uint32_t)(v) & 0xff000000) >> 24)))
  26
  27 static inline __constfunc uint32_t __htonl(uint32_t v)
  28 {
  29     asm("xchgb %h0,%b0 ; roll $16,%0 ; xchgb %h0,%b0"
  30         : "+q" (v));
  31     return v;
  32 }
  33
  34 #define htonl(x) (__builtin_constant_p(x) ? __htonl_macro(x) : __htonl(x))
  35 #define ntohl(x) htonl(x)
  36
  37 #define __htonq_macro(v) ((uint64_t)                                    \
  38     (((uint64_t)__htonl_macro((uint32_t)(v)) << 32) |                   \
  39      (__htonl_macro((uint32_t)((uint64_t)(v) >> 32)))))
  40
  41 static inline __constfunc uint64_t __htonq(uint64_t v)
  42 {
  43     return ((uint64_t)__htonl(v) << 32) | __htonl(v >> 32);
  44 }
  45
  46 #define htonq(x) (__builtin_constant_p(x) ? __htonq_macro(x) :  __htonq(x))
  47 #define ntohq(x) htonq(x)
  48
  49 typedef uint32_t in_addr_t;
  50 typedef uint16_t in_port_t;
  51
  52 struct in_addr {
  53     in_addr_t s_addr;
  54 };
  55
  56 #endif /* _NETINET_IN_H */