From: cristy <urban-warrior@git.imagemagick.org>
Date: Sun, 21 Dec 2014 23:32:29 +0000 (+0000)
Subject: (no commit message)
X-Git-Tag: 7.0.1-0~1579
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=dc798fbe0021d7350d6a0da498230cb5b3c95406;p=imagemagick

---

diff --git a/MagickCore/colormap-private.h b/MagickCore/colormap-private.h
index f54c50a09..1dfce2235 100644
--- a/MagickCore/colormap-private.h
+++ b/MagickCore/colormap-private.h
@@ -38,6 +38,20 @@ static inline ssize_t ConstrainColormapIndex(Image *image,const ssize_t index,
   return((ssize_t) index);
 }
 
+static inline MagickBooleanType IsValidColormapIndex(Image *image,
+  const ssize_t index,Quantum *target,ExceptionInfo *exception)
+{ 
+  if ((index < 0) || (index >= (ssize_t) image->colors))
+    { 
+      (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageError,
+        "InvalidColormapIndex","`%s'",image->filename);
+      *target=(Quantum) 0;
+      return(MagickFalse);
+    }
+  *target=(Quantum) index;
+  return(MagickTrue);
+}
+
 #if defined(__cplusplus) || defined(c_plusplus)
 }
 #endif