ref: 1d891d163e814a93ee5346cf05b4fac297bf3a5c
dir: /sys/src/ape/lib/bsd/_sock_ipattr.c/
/* posix */ #include <sys/types.h> #include <unistd.h> #include <ctype.h> /* bsd extensions */ #include <sys/uio.h> #include <sys/socket.h> #include <netinet/in.h> #include "priv.h" /* * return ndb attribute type of an ip name */ int _sock_ipattr(char *name) { char *p; int dot = 0; int alpha = 0; for(p = name; *p; p++){ if(isdigit(*p)) ; else if(isalpha(*p) || *p == '-') alpha = 1; else if(*p == '.') dot = 1; else if(*p == ':') return Tip; else return Tsys; } if(alpha){ if(dot) return Tdom; else return Tsys; } if(dot) return Tip; else return Tsys; }