When makekeys fails to find a good hash, print error instead of divide-by-zero

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>

When makekeys fails to find a good hash, print error instead of divide-by-zero
70327993 · Alan Coopersmith · Ulrich Sibiller · f5736540 · 70327993
Commit 70327993 authored Mar 17, 2009 by Alan Coopersmith Committed by Ulrich Sibiller Oct 10, 2016
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makekeys.c nx-X11/lib/X11/util/makekeys.c +10 -0

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--- a/nx-X11/lib/X11/util/makekeys.c
+++ b/nx-X11/lib/X11/util/makekeys.c
@@ -150,6 +150,11 @@ next1:	;
    }

    z = best_z;
+    if (z == 0) {
+	fprintf(stderr, "makekeys: failed to find small enough hash!\n"
+		"Try increasing KTNUM in makekeys.c\n");
+	exit(1);
+    }
    printf("#ifdef NEEDKTABLE\n");
    printf("const unsigned char _XkeyTable[] = {\n");
    printf("0,\n");
@@ -230,6 +235,11 @@ next2:	;
    }

    z = best_z;
+    if (z == 0) {
+	fprintf(stderr, "makekeys: failed to find small enough hash!\n"
+		"Try increasing KTNUM in makekeys.c\n");
+	exit(1);
+    }
    for (i = z; --i >= 0;)
 	offsets[i] = 0;
    for (i = 0; i < ksnum; i++) {