===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/rdist/docmd.c,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- src/usr.bin/rdist/docmd.c	1996/02/03 12:12:22	1.2
+++ src/usr.bin/rdist/docmd.c	1996/03/05 03:16:03	1.3
@@ -33,7 +33,7 @@
 
 #ifndef lint
 static char RCSid[] = 
-"$Id: docmd.c,v 1.2 1996/02/03 12:12:22 dm Exp $";
+"$Id: docmd.c,v 1.3 1996/03/05 03:16:03 dm Exp $";
 
 static char sccsid[] = "@(#)docmd.c	5.1 (Berkeley) 6/6/85";
 
@@ -432,6 +432,11 @@
 	char *rhost;
 	int didupdate = 0;
 
+        if (setjmp_ok) {
+		error("reentrant call to doarrow");
+		abort();
+	}
+
 	if (!cmd) {
 		debugmsg(DM_MISC, "doarrow() NULL cmd parameter");
 		return;
@@ -461,12 +466,15 @@
 		}
 
 		if (setjmp(finish_jmpbuf)) {
+			setjmp_ok = FALSE;
 			debugmsg(DM_MISC, "setjmp to finish_jmpbuf");
 			markfailed(cmd, cmds);
 			return;
 		}
+		setjmp_ok = TRUE;
 
 		if (!makeconn(rhost)) {
+			setjmp_ok = FALSE;
 			markfailed(cmd, cmds);
 			return;
 		}
@@ -583,6 +591,7 @@
 		}
 		ihead = NULL;
 	}
+	setjmp_ok = FALSE;
 }
 
 okname(name)