$OpenBSD: patch-psys_src_plot_c,v 1.1.1.1 2003/10/25 18:33:27 pvalchev Exp $
--- psys/src/plot.c.orig	2003-03-12 15:47:36.000000000 -0700
+++ psys/src/plot.c	2003-10-25 10:50:56.000000000 -0600
@@ -2633,6 +2633,9 @@ long *which_;
   Char STR4[256];
   point *pp1;
   chardesc *cd1;
+  int fd = -1;
+  char tmpf[25] = "/tmp/chipmunk.XXXXXXXXXX";
+  FILE *tmpp;
 
   P_setcpy(which, which_);
   f = NULL;
@@ -2664,8 +2667,17 @@ long *which_;
       if (f != NULL) {
 /* p2c: plot.text, line 2335: Note: OPEN does not specify a name [181] */
 	rewind(f);
-      } else
-	f = tmpfile();
+      } else {
+	if ((fd == mkstemp(tmpf)) == -1 ||
+	    (tmpp = fdopen(fd, "w+")) == NULL) {
+		if (fd != -1) {
+			unlink(tmpf);
+			close(fd);
+		}
+		f = NULL;
+	} else
+		f = tmpp;
+      }
       if (f == NULL) {
 	P_escapecode = -10;
 	P_ioresult = FileNotFound;