$OpenBSD: patch-pbm_pbmtoppa_pbm_c,v 1.1 2003/03/29 04:13:54 brad Exp $
--- pbm/pbmtoppa/pbm.c.orig	Thu Jun  1 13:20:30 2000
+++ pbm/pbmtoppa/pbm.c	Fri Mar 28 20:22:06 2003
@@ -105,6 +105,7 @@ int pbm_readline(pbm_stat* pbm,unsigned 
     return 0;
 
   case P4:
+    overflow_add(pbm->width, 7);
     tmp=(pbm->width+7)/8;
     tmp2=fread(data,1,tmp,pbm->fptr);
     if(tmp2 == tmp)
@@ -129,7 +130,8 @@ void pbm_unreadline (pbm_stat *pbm, void
     return;
 
   pbm->unread = 1;
-  pbm->revdata = malloc ((pbm->width+7)/8);
+  overflow_add(pbm->width, 7);
+  pbm->revdata = malloc((pbm->width+7)/8);
   memcpy (pbm->revdata, data, (pbm->width+7)/8);
   pbm->current_line--;
 }