include/arpa/nameser.h

   1 #ifndef _ARPA_NAMESER_H_
   2
   3 #include <resolv/arpa/nameser.h>
   4
   5 /* If the machine allows unaligned access we can do better than using
   6    the NS_GET16, NS_GET32, NS_PUT16, and NS_PUT32 macros from the
   7    installed header.  */
   8 #include <string.h>
   9 #include <stdint.h>
  10 #include <netinet/in.h>
  11
  12 extern const struct _ns_flagdata _ns_flagdata[] attribute_hidden;
  13
  14 #if _STRING_ARCH_unaligned
  15
  16 # undef NS_GET16
  17 # define NS_GET16(s, cp) \
  18   do {                                                                        \
  19     const uint16_t *t_cp = (const uint16_t *) (cp);                           \
  20     (s) = ntohs (*t_cp);                                                      \
  21     (cp) += NS_INT16SZ;                                                       \
  22   } while (0)
  23
  24 # undef NS_GET32
  25 # define NS_GET32(l, cp) \
  26   do {                                                                        \
  27     const uint32_t *t_cp = (const uint32_t *) (cp);                           \
  28     (l) = ntohl (*t_cp);                                                      \
  29     (cp) += NS_INT32SZ;                                                       \
  30   } while (0)
  31
  32 # undef NS_PUT16
  33 # define NS_PUT16(s, cp) \
  34   do {                                                                        \
  35     uint16_t *t_cp = (uint16_t *) (cp);                                       \
  36     *t_cp = htons (s);                                                        \
  37     (cp) += NS_INT16SZ;                                                       \
  38   } while (0)
  39
  40 # undef NS_PUT32
  41 # define NS_PUT32(l, cp) \
  42   do {                                                                        \
  43     uint32_t *t_cp = (uint32_t *) (cp);                                       \
  44     *t_cp = htonl (l);                                                        \
  45     (cp) += NS_INT32SZ;                                                       \
  46   } while (0)
  47
  48 #endif
  49
  50 extern u_int            __ns_get16 (const u_char *) __THROW;
  51 extern u_long           __ns_get32 (const u_char *) __THROW;
  52
  53 #define ns_msg_getflag(handle, flag) \
  54   (((handle)._flags & _ns_flagdata[flag].mask) >> _ns_flagdata[flag].shift)
  55
  56 libresolv_hidden_proto (ns_get16)
  57 libresolv_hidden_proto (ns_get32)
  58 libresolv_hidden_proto (ns_put16)
  59 libresolv_hidden_proto (ns_put32)
  60 libresolv_hidden_proto (ns_initparse)
  61 libresolv_hidden_proto (ns_skiprr)
  62 libresolv_hidden_proto (ns_parserr)
  63 libresolv_hidden_proto (ns_name_ntop)
  64 libresolv_hidden_proto (ns_name_pton)
  65 libresolv_hidden_proto (ns_name_pack)
  66 libresolv_hidden_proto (ns_name_skip)
  67 libresolv_hidden_proto (ns_name_unpack)
  68 libresolv_hidden_proto (ns_name_compress)
  69 libresolv_hidden_proto (ns_name_uncompress)
  70 libresolv_hidden_proto (ns_sprintrr)
  71 libresolv_hidden_proto (ns_sprintrrf)
  72 libresolv_hidden_proto (ns_samedomain)
  73 libresolv_hidden_proto (ns_samename)
  74 libresolv_hidden_proto (ns_makecanon)
  75 libresolv_hidden_proto (ns_format_ttl)
  76
  77 #endif