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#include <u.h>
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#include <libc.h>
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#include <auth.h>
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#include <fcall.h>
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#include <thread.h>
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#include <9p.h>
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/*
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 * simplistic permission checking.  assume that
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 * each user is the leader of her own group.
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 */
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int
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hasperm(File *f, char *uid, int p)
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{
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	int m;
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	m = f->mode & 7;	/* other */
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	if((p & m) == p)
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		return 1;
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	if(strcmp(f->uid, uid) == 0) {
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		m |= (f->mode>>6) & 7;
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		if((p & m) == p)
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			return 1;
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	}
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	if(strcmp(f->gid, uid) == 0) {
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		m |= (f->mode>>3) & 7;
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		if((p & m) == p)
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			return 1;
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	}
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	return 0;
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}