ING_DB

WEGA/contrib/ingres/dbs/src/amx_lib/AAperm.c

@@ -0,0 +1,149 @@
+# include	"AA_liba.h"
+
+/* THIS MODULE checks all PERMITS */
+
+# ifndef MSDOS
+/* check for correct user		*/
+AAPuser()
+{
+	register int		uid;
+	extern int		AAuid;
+
+	uid= getuid();
+# ifdef AMX_TRACE
+	AAtTfp(38, 0, "PERMIT(user %d) found %d\n", AAuid, uid);
+# endif
+	if (AAuid != uid)
+		AAerror(110, "user");
+}
+
+
+/* check for correct group		*/
+AAPgroup()
+{
+	register int		gid;
+	extern int		AAgid;
+
+	gid = getgid();
+# ifdef AMX_TRACE
+	AAtTfp(39, 0, "PERMIT(group %d) found %d\n", AAgid, gid);
+# endif
+	if (AAgid != gid)
+		AAerror(110, "group");
+}
+
+
+# ifdef	AMX_QRYMOD
+/* check for correct terminal		*/
+/* returns 0: violation			*/
+/*         1: ok			*/
+AAPterm(t)
+register char	*t;
+{
+	register char		*tty;
+	register int		i;
+	char			term[PROTERM + 1];
+	extern char		*ttyname();
+
+	/* determine user's terminal for protection algorithm */
+# ifdef BIT_32
+	tty = "####";
+# else
+	tty = "##";
+# endif
+	for (i = 0; i < 3; i++)
+		if (isatty(i))
+		{
+			tty = ttyname(i);
+			break;
+		}
+	if (AAbequal(tty, "tty", 3))
+		tty = &tty[3];
+	else if (AAbequal(tty, "/dev/tty", 8))
+		tty = &tty[8];
+	AApmove(tty, term, PROTERM, ' ');
+	term[PROTERM] = 0;
+# ifdef AMX_TRACE
+	AAtTfp(40, 0, "PERMIT(term %s) found %s\n", t, term);
+# endif
+	if (!AAbequal(t, term, PROTERM))
+		return (0);
+	return (1);
+}
+
+
+/* check for correct day of the week	*/
+/* returns 0: violation			*/
+/*         1: ok			*/
+AAPday(f, t)
+register int	f;
+register int	t;
+{
+	register int	d;
+
+	d = getdate(1);
+# ifdef AMX_TRACE
+	AAtTfp(41, 0, "PERMIT(day %d to %d) found %d\n", f, t, d);
+# endif
+	return (check(f, d, t));
+}
+
+
+/* check for correct time of the day	*/
+/* returns 0: violation			*/
+/*         1: ok			*/
+AAPtime(f, t)
+register int	f;
+register int	t;
+{
+	register int	d;
+
+	d = getdate(0);
+# ifdef AMX_TRACE
+	AAtTfp(42, 0, "PERMIT(time %d to %d) found %d\n", f, t, d);
+# endif
+	return (check(f, d, t));
+}
+
+
+static int	check(f, d, t)
+register int	f;
+register int	d;
+register int	t;
+{
+	return (((f <= d) + (d <= t)) == ((f < t)? 2: 1));
+}
+
+
+static int	getdate(which)
+register int	which;	/* which == 1: get day	*/
+			/*       == 0: get time */
+{
+	register int	*local;
+	long		long_time;
+	extern long	time();
+	extern int	*localtime();
+
+	time(&long_time);
+# ifdef ESER_VMX
+	local = localtime(long_time);
+# else
+	local = localtime(&long_time);
+# endif
+/*----------------------------------------------------------------------*/
+/* OFFSETS for local:							*/
+/*----------------------------------------------------------------------*/
+/*	SECOND	==  0				(0 -59)			*/
+/*	MINUTE	==  1				(0 -59)			*/
+/*	HOUR	==  2				(0 - 23)		*/
+/*	M_DAY	==  3	month day		(1 - 31)		*/
+/*	MONTH	==  4				(0 - 11)		*/
+/*	YEAR	==  5				(year - 1900)		*/
+/*	W_DAY	==  6	week day 		(0 - 6, 0 == sunday)	*/
+/*	Y_DAY	==  7	year day 		(0 - 365)		*/
+/*	IS_DST	==  8	day light saving flag	(!= 0: summer time)	*/
+/*----------------------------------------------------------------------*/
+	return (which? local[6]: local[1] + 60 * local[2]);
+}
+# endif
+# endif