34 lines
499 B
C
34 lines
499 B
C
#include <u.h>
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#include <libc.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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}
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