sys/src/ape/lib/bsd/_sock_ipattr.c

   1 /* posix */
   2 #include <sys/types.h>
   3 #include <unistd.h>
   4 #include <ctype.h>
   5
   6 /* bsd extensions */
   7 #include <sys/uio.h>
   8 #include <sys/socket.h>
   9 #include <netinet/in.h>
  10
  11 #include "priv.h"
  12
  13 /*
  14  *  return ndb attribute type of an ip name
  15  */
  16 int
  17 _sock_ipattr(char *name)
  18 {
  19         char *p;
  20         int dot = 0;
  21         int alpha = 0;
  22
  23         for(p = name; *p; p++){
  24                 if(isdigit(*p))
  25                         ;
  26                 else if(isalpha(*p) || *p == '-')
  27                         alpha = 1;
  28                 else if(*p == '.')
  29                         dot = 1;
  30                 else if(*p == ':')
  31                         return Tip;
  32                 else
  33                         return Tsys;
  34         }
  35
  36         if(alpha){
  37                 if(dot)
  38                         return Tdom;
  39                 else
  40                         return Tsys;
  41         }
  42
  43         if(dot)
  44                 return Tip;
  45         else
  46                 return Tsys;
  47 }