X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fslide.c;h=06c77689cb30f3d145fabae2c98ebfbf71281a88;hb=82aed0c41cd917fdf9cdb20db788fe9da0662eba;hp=e20d0beea703167c3050e601fb43f4bb73a0a9ea;hpb=c06c4c87aef651f32419c6a63d8291b15bad5cf4;p=sympathy.git

diff --git a/src/slide.c b/src/slide.c
index e20d0be..06c7768 100644
--- a/src/slide.c
+++ b/src/slide.c
@@ -10,6 +10,12 @@ static char rcsid[] = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.3  2008/02/14 02:46:44  james
+ * *** empty log message ***
+ *
+ * Revision 1.2  2008/02/14 00:57:58  james
+ * *** empty log message ***
+ *
  * Revision 1.1  2008/02/13 16:57:29  james
  * *** empty log message ***
  *
@@ -37,9 +43,13 @@ void
 slide_consume (Slide * s, int n)
 {
   s->nbytes -= n;
+
+  if (s->nbytes < 0)
+    abort ();
+
   memmove (s->slide, s->slide + n, s->nbytes);
 
-  if ((s->size > s->target_size) && (s->nbytes <= s->size))
+  if ((s->size > s->target_size) && (s->nbytes <= s->target_size))
     {
       s->size = s->target_size;
       s->slide = realloc (s->slide, s->size);