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#include <u.h>
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#include <ctype.h>
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/*
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 *  return ndb attribute type of an ip name
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 */
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char*
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ipattr(char *name)
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{
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	char *p, c;
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	int dot = 0;
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	int alpha = 0;
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	int colon = 0;
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	int hex = 0;
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	for(p = name; *p; p++){
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		c = *p;
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		if(isdigit(c))
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			continue;
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		if(isxdigit(c))
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			hex = 1;
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		else if(isalpha(c) || c == '-')
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			alpha = 1;
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		else if(c == '.')
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			dot = 1;
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		else if(c == ':')
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			colon = 1;
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		else
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			return "sys";
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	}
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	if(alpha){
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		if(dot)
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			return "dom";
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		else
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			return "sys";
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	}
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	if(colon)
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		return "ip";	/* ip v6 */
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	if(dot && !hex)
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		return "ip";
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	else
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		return "sys";
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}