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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- #include <u.h>
- #include <libc.h>
- #include <auth.h>
- #include <fcall.h>
- #include <thread.h>
- #include <9p.h>
- /*
- * simplistic permission checking. assume that
- * each user is the leader of her own group.
- */
- int
- hasperm(File *f, char *uid, int p)
- {
- int m;
- m = f->Dir.mode & 7; /* other */
- if((p & m) == p)
- return 1;
- if(strcmp(f->Dir.uid, uid) == 0) {
- m |= (f->Dir.mode>>6) & 7;
- if((p & m) == p)
- return 1;
- }
- if(strcmp(f->Dir.gid, uid) == 0) {
- m |= (f->Dir.mode>>3) & 7;
- if((p & m) == p)
- return 1;
- }
- return 0;
- }
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