53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/*
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* This file is part of Jehanne.
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*
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* Copyright (C) 2016-2017 Giacomo Tesio <giacomo@tesio.it>
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*
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* Jehanne is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 2 of the License.
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*
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* Jehanne is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Jehanne. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <u.h>
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#include <libc.h>
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int
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jehanne_access(const char *name, int mode)
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{
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int fd;
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Dir *db;
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static char omode[] = {
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OSTAT,
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OEXEC,
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OWRITE,
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ORDWR,
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OREAD,
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OEXEC, /* 5=4+1 READ|EXEC, EXEC is enough */
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ORDWR,
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ORDWR /* 7=4+2+1 READ|WRITE|EXEC, ignore EXEC */
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};
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fd = open(name, omode[mode&AMASK]);
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if(fd >= 0){
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close(fd);
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return 0;
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}
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db = jehanne_dirstat(name);
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if(db != nil){
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fd = db->mode & omode[mode&AMASK];
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jehanne_free(db);
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if(fd)
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return 0;
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}
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return -1;
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}
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