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More complex implementation of previos superuser fix

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because rw and x bit treats differently infact
This commit is contained in:
Andrey A. Chernov 1994-11-05 17:28:03 +00:00
parent 3b0beab69c
commit ea8bd6e348
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=4167
1 changed files with 10 additions and 2 deletions
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12
bin/test/test.c
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@ -33,7 +33,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: test.c,v 1.4 1994/09/24 02:59:15 davidg Exp $
* $Id: test.c,v 1.5 1994/11/05 17:07:14 ache Exp $
*/
#ifndef lint
@ -336,22 +336,30 @@ expr_operator(op, sp, fs)
sp->type = BOOLEAN;
break;
case ISEXIST:
exist:
if (fs == NULL || fs->rcode == -1)
goto false;
else
goto true;
case ISREAD:
if (geteuid() == 0)
goto exist;
i = S_IROTH;
goto permission;
case ISWRITE:
if (geteuid() == 0)
goto exist;
i = S_IWOTH;
goto permission;
case ISEXEC:
if (geteuid() != 0) {
i = S_IXOTH;
permission: if (geteuid() == 0 || fs->stat.st_uid == geteuid())
permission: if (fs->stat.st_uid == geteuid())
i <<= 6;
else if (fs->stat.st_gid == getegid())
i <<= 3;
} else
i = S_IXOTH|S_IXGRP|S_IXUSR;
goto filebit; /* true if (stat.st_mode & i) != 0 */
case ISFILE:
i = S_IFREG;