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 #include <klibc/extern.h>
   9
  10 #define __htons_macro(v) ((uint16_t)                                    \
  11                           (((uint16_t)(v) << 8) |                       \
  12                            ((uint16_t)(v) >> 8)))
  13
  14 static inline __constfunc uint16_t __htons(uint16_t v)
  15 {
  16     return __htons_macro(v);
  17 }
  18
  19 #define htons(x) (__builtin_constant_p(x) ? __htons_macro(x) :  __htons(x))
  20 #define ntohs(x) htons(x)
  21
  22 #define __htonl_macro(v) ((uint32_t)                                    \
  23                           ((((uint32_t)(v) & 0x000000ff) << 24) |       \
  24                            (((uint32_t)(v) & 0x0000ff00) << 8)  |       \
  25                           (((uint32_t)(v) & 0x00ff0000) >> 8)  |        \
  26                            (((uint32_t)(v) & 0xff000000) >> 24)))
  27
  28 static inline __constfunc uint32_t __htonl(uint32_t v)
  29 {
  30     asm("xchgb %h0,%b0 ; roll $16,%0 ; xchgb %h0,%b0"
  31         : "+q" (v));
  32     return v;
  33 }
  34
  35 #define htonl(x) (__builtin_constant_p(x) ? __htonl_macro(x) : __htonl(x))
  36 #define ntohl(x) htonl(x)
  37
  38 #define __htonq_macro(v) ((uint64_t)                                    \
  39     (((uint64_t)__htonl_macro((uint32_t)(v)) << 32) |                   \
  40      (__htonl_macro((uint32_t)((uint64_t)(v) >> 32)))))
  41
  42 static inline __constfunc uint64_t __htonq(uint64_t v)
  43 {
  44     return ((uint64_t)__htonl(v) << 32) | __htonl(v >> 32);
  45 }
  46
  47 #define htonq(x) (__builtin_constant_p(x) ? __htonq_macro(x) :  __htonq(x))
  48 #define ntohq(x) htonq(x)
  49
  50 typedef uint32_t in_addr_t;
  51 typedef uint16_t in_port_t;
  52
  53 struct in_addr {
  54     in_addr_t s_addr;
  55 };
  56
  57 __extern char *inet_ntoa(struct in_addr);
  58
  59 #endif /* _NETINET_IN_H */