File ImageMagick-CVE-2018-16329.patch of Package ImageMagick.8212

Index: ImageMagick-6.8.8-1/magick/property.c
===================================================================
--- ImageMagick-6.8.8-1.orig/magick/property.c	2018-09-03 15:43:42.918380405 +0200
+++ ImageMagick-6.8.8-1/magick/property.c	2018-09-03 15:43:45.874395798 +0200
@@ -2236,6 +2236,16 @@ MagickExport const char *GetImagePropert
 %    o key: the key.
 %
 */
+
+#define WarnNoImageReturn(format,arg) \
+  if (image == (Image *) NULL ) { \
+    return((const char *) NULL); \
+  }
+#define WarnNoImageInfoReturn(format,arg) \
+  if (image_info == (ImageInfo *) NULL ) { \
+    return((const char *) NULL); \
+  }
+
 static const char *GetMagickPropertyLetter(const ImageInfo *image_info,
   Image *image,const char letter)
 {
@@ -2253,6 +2263,7 @@ static const char *GetMagickPropertyLett
   {
     case 'b':  /* image size read in - in bytes */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         ((MagickOffsetType) image->extent));
       if (image->extent != (MagickSizeType) ((size_t) image->extent))
@@ -2262,6 +2273,7 @@ static const char *GetMagickPropertyLett
     }
     case 'c':  /* image comment property - empty string by default */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       string=GetImageProperty(image,"comment");
       if (string == (const char *) NULL)
         string="";
@@ -2269,21 +2281,25 @@ static const char *GetMagickPropertyLett
     }
     case 'd':  /* Directory component of filename */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       GetPathComponent(image->magick_filename,HeadPath,value);
       break;
     }
     case 'e': /* Filename extension (suffix) of image file */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       GetPathComponent(image->magick_filename,ExtensionPath,value);
       break;
     }
     case 'f': /* Filename without directory component */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       GetPathComponent(image->magick_filename,TailPath,value);
       break;
     }
     case 'g': /* Image geometry, canvas and offset  %Wx%H+%X+%Y */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g%+.20g%+.20g",
         (double) image->page.width,(double) image->page.height,
         (double) image->page.x,(double) image->page.y);
@@ -2291,17 +2307,20 @@ static const char *GetMagickPropertyLett
     }
     case 'h': /* Image height (current) */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         (image->rows != 0 ? image->rows : image->magick_rows));
       break;
     }
     case 'i': /* Filename last used for image (read or write) */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       string=image->filename;
       break;
     }
     case 'k': /* Number of unique colors  */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       /* FUTURE: ensure this does not generate the formated comment! */
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         GetNumberColors(image,(FILE *) NULL,&image->exception));
@@ -2309,6 +2328,7 @@ static const char *GetMagickPropertyLett
     }
     case 'l': /* Image label property - empty string by default */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       string=GetImageProperty(image,"label");
       if (string == (const char *) NULL)
         string="";
@@ -2316,28 +2336,33 @@ static const char *GetMagickPropertyLett
     }
     case 'm': /* Image format (file magick) */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       string=image->magick;
       break;
     }
     case 'n': /* Number of images in the list.  */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         GetImageListLength(image));
       break;
     }
     case 'o': /* Output Filename - for delegate use only */
     {
+      WarnNoImageInfoReturn("\"%%%c\"",letter);
       string=image_info->filename;
       break;
     }
     case 'p': /* Image index in current image list -- As 'n' OBSOLETE */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         GetImageIndexInList(image));
       break;
     }
     case 'q': /* Quantum depth of image in memory */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         MAGICKCORE_QUANTUM_DEPTH);
       break;
@@ -2347,6 +2372,7 @@ static const char *GetMagickPropertyLett
       ColorspaceType
         colorspace;
 
+      WarnNoImageReturn("\"%%%c\"",letter);
       colorspace=image->colorspace;
       if (IsGrayImage(image,&image->exception) != MagickFalse)
         colorspace=GRAYColorspace;
@@ -2358,56 +2384,61 @@ static const char *GetMagickPropertyLett
     }
     case 's': /* Image scene number */
     {
-      if (image_info->number_scenes != 0)
-        (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
-          image_info->scene);
-      else
-        (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
-          image->scene);
+      WarnNoImageReturn("\"%%%c\"",letter);
+      (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
+         image->scene);
       break;
     }
     case 't': /* Base filename without directory or extention */
     {
+      WarnNoImageInfoReturn("\"%%%c\"",letter);
       GetPathComponent(image->magick_filename,BasePath,value);
       break;
     }
     case 'u': /* Unique filename */
     {
+      WarnNoImageInfoReturn("\"%%%c\"",letter);
       string=image_info->unique;
       break;
     }
     case 'w': /* Image width (current) */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         (image->columns != 0 ? image->columns : image->magick_columns));
       break;
     }
     case 'x': /* Image horizontal resolution */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
         fabs(image->x_resolution) > MagickEpsilon ? image->x_resolution : 72.0);
       break;
     }
     case 'y': /* Image vertical resolution */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
         fabs(image->y_resolution) > MagickEpsilon ? image->y_resolution : 72.0);
       break;
     }
     case 'z': /* Image depth as read in */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         image->depth);
       break;
     }
     case 'A': /* Image alpha channel  */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%s",
          CommandOptionToMnemonic(MagickBooleanOptions,(ssize_t) image->matte));
       break;
     }
     case 'C': /* Image compression method.  */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%s",
         CommandOptionToMnemonic(MagickCompressOptions,(ssize_t)
           image->compression));
@@ -2415,47 +2446,55 @@ static const char *GetMagickPropertyLett
     }
     case 'D': /* Image dispose method.  */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%s",
         CommandOptionToMnemonic(MagickDisposeOptions,(ssize_t) image->dispose));
       break;
     }
     case 'G': /* Image size as geometry = "%wx%h" */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",(double)
         image->magick_columns,(double) image->magick_rows);
       break;
     }
     case 'H': /* layer canvas height */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         image->page.height);
       break;
     }
     case 'M': /* Magick filename - filename given incl. coder & read mods */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       string=image->magick_filename;
       break;
     }
     case 'O': /* layer canvas offset with sign = "+%X+%Y" */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%+ld%+ld",(long)
         image->page.x,(long) image->page.y);
       break;
     }
     case 'P': /* layer canvas page size = "%Wx%H" */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g",(double)
         image->page.width,(double) image->page.height);
       break;
     }
     case 'Q': /* image compression quality */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         (image->quality == 0 ? 92 : image->quality));
       break;
     }
     case 'S': /* Image scenes  ???? */
     {
+      WarnNoImageInfoReturn("\"%%%c\"",letter);
       if (image_info->number_scenes == 0)
         string="2147483647";
       else
@@ -2465,12 +2504,14 @@ static const char *GetMagickPropertyLett
     }
     case 'T': /* image time delay for animations */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         image->delay);
       break;
     }
     case 'U': /* Image resolution units. */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%s",
         CommandOptionToMnemonic(MagickResolutionOptions,(ssize_t)
           image->units));
@@ -2478,24 +2519,28 @@ static const char *GetMagickPropertyLett
     }
     case 'W': /* layer canvas width */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
         image->page.width);
       break;
     }
     case 'X': /* layer canvas X offset */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%+.20g",(double)
         image->page.x);
       break;
     }
     case 'Y': /* layer canvas Y offset */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) FormatLocaleString(value,MaxTextExtent,"%+.20g",(double)
         image->page.y);
       break;
     }
     case 'Z': /* Zero filename ??? */
     {
+      WarnNoImageInfoReturn("\"%%%c\"",letter);
       string=image_info->zero;
       break;
     }
@@ -2504,6 +2549,7 @@ static const char *GetMagickPropertyLett
       RectangleInfo
         page;
 
+      WarnNoImageReturn("\"%%%c\"",letter);
       page=GetImageBoundingBox(image,&image->exception);
       (void) FormatLocaleString(value,MaxTextExtent,"%.20gx%.20g%+.20g%+.20g",
         (double) page.width,(double) page.height,(double) page.x,(double)
@@ -2512,6 +2558,7 @@ static const char *GetMagickPropertyLett
     }
     case '#': /* Image signature */
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) SignatureImage(image);
       string=GetImageProperty(image,"signature");
       break;
@@ -2526,6 +2573,7 @@ static const char *GetMagickPropertyLett
     string=value;
   if (string != (char *) NULL)
     {
+      WarnNoImageReturn("\"%%%c\"",letter);
       (void) SetImageArtifact(image,"get-property",string);
       return(GetImageArtifact(image,"get-property"));
     }
@@ -2542,6 +2590,7 @@ MagickExport const char *GetMagickProper
     *string;
 
   assert(property[0] != '\0');
+  assert(image != (Image *) NULL || image_info != (ImageInfo *) NULL );
   if (property[1] == '\0')  /* single letter property request */
     return(GetMagickPropertyLetter(image_info,image,*property));
   *value='\0';  /* formatted string */
@@ -2553,11 +2602,13 @@ MagickExport const char *GetMagickProper
       if ((LocaleCompare("base",property) == 0) ||
           (LocaleCompare("basename",property) == 0) )
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           GetPathComponent(image->magick_filename,BasePath,value);
           break;
         }
       if (LocaleCompare("bit-depth",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
             GetImageDepth(image, &image->exception));
           break;
@@ -2571,6 +2622,7 @@ MagickExport const char *GetMagickProper
           /*
             Image channels.
           */
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%s",
             CommandOptionToMnemonic(MagickColorspaceOptions,(ssize_t)
             image->colorspace));
@@ -2584,6 +2636,7 @@ MagickExport const char *GetMagickProper
           /*
             Image storage class and colorspace.
           */
+          WarnNoImageReturn("\"%%[%s]\"",property);
           string=CommandOptionToMnemonic(MagickColorspaceOptions,(ssize_t)
             image->colorspace);
           break;
@@ -2599,12 +2652,14 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("depth",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
             image->depth);
           break;
         }
       if (LocaleCompare("directory",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           GetPathComponent(image->magick_filename,HeadPath,value);
           break;
         }
@@ -2614,6 +2669,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("extension",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           GetPathComponent(image->magick_filename,ExtensionPath,value);
           break;
         }
@@ -2623,6 +2679,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("gamma",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
             GetMagickPrecision(),image->gamma);
           break;
@@ -2630,6 +2687,7 @@ MagickExport const char *GetMagickProper
       if ((image_info != (ImageInfo *) NULL) &&
           (LocaleCompare("group",property) == 0))
         {
+          WarnNoImageInfoReturn("\"%%%c\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"0x%lx",(unsigned long)
             image_info->group);
           break;
@@ -2640,6 +2698,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("height",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
             image->magick_rows != 0 ? (double) image->magick_rows : 256.0);
           break;
@@ -2650,6 +2709,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("input",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           string=image->filename;
           break;
         }
@@ -2663,6 +2723,7 @@ MagickExport const char *GetMagickProper
             kurtosis,
             skewness;
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) GetImageChannelKurtosis(image,image_info->channel,&kurtosis,
             &skewness,&image->exception);
           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
@@ -2675,6 +2736,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("magick",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           string=image->magick;
           break;
         }
@@ -2685,6 +2747,7 @@ MagickExport const char *GetMagickProper
             maximum,
             minimum;
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) GetImageChannelRange(image,image_info->channel,&minimum,
             &maximum,&image->exception);
           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
@@ -2697,6 +2760,7 @@ MagickExport const char *GetMagickProper
             mean,
             standard_deviation;
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) GetImageChannelMean(image,image_info->channel,&mean,
             &standard_deviation,&image->exception);
           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
@@ -2710,6 +2774,7 @@ MagickExport const char *GetMagickProper
             maximum,
             minimum;
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) GetImageChannelRange(image,image_info->channel,&minimum,
             &maximum,&image->exception);
           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
@@ -2725,6 +2790,7 @@ MagickExport const char *GetMagickProper
           MagickBooleanType
             opaque;
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
           opaque=IsOpaqueImage(image,&image->exception);
           (void) CopyMagickString(value,opaque != MagickFalse ? "true" :
             "false",MaxTextExtent);
@@ -2732,6 +2798,7 @@ MagickExport const char *GetMagickProper
         }
       if (LocaleCompare("orientation",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           string=CommandOptionToMnemonic(MagickOrientationOptions,(ssize_t)
             image->orientation);
           break;
@@ -2739,6 +2806,7 @@ MagickExport const char *GetMagickProper
       if ((image_info != (ImageInfo *) NULL) &&
           (LocaleCompare("output",property) == 0))
         {
+          WarnNoImageInfoReturn("\"%%%c\"",property);
           (void) CopyMagickString(value,image_info->filename,MaxTextExtent);
           break;
         }
@@ -2748,6 +2816,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("page",property) == 0)
         {
+          WarnNoImageReturn("\"%%%c\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
             GetImageIndexInList(image)+1);
           break;
@@ -2766,6 +2835,7 @@ MagickExport const char *GetMagickProper
           cmsHPROFILE
             icc_profile;
 
+          WarnNoImageReturn("\"%%%c\"",property);
           profile=GetImageProfile(image,property+8);
           if (profile == (StringInfo *) NULL)
             break;
@@ -2789,6 +2859,7 @@ MagickExport const char *GetMagickProper
           const char
             *name;
 
+          WarnNoImageReturn("\"%%%c\"",property);
           ResetImageProfileIterator(image);
           name=GetNextImageProfile(image);
           if (name != (char *) NULL)
@@ -2810,12 +2881,14 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("resolution.x",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%g",
             image->x_resolution);
           break;
         }
       if (LocaleCompare("resolution.y",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%g",
             image->y_resolution);
           break;
@@ -2831,12 +2904,16 @@ MagickExport const char *GetMagickProper
             (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
               image_info->scene);
           else
+          {
+            WarnNoImageReturn("\"%%[%s]\"",property);
             (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
               image->scene);
+          }
           break;
         }
       if (LocaleCompare("scenes",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
             GetImageListLength(image));
           break;
@@ -2846,6 +2923,7 @@ MagickExport const char *GetMagickProper
           char
             format[MaxTextExtent];
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatMagickSize(GetBlobSize(image),MagickFalse,format);
           (void) FormatLocaleString(value,MaxTextExtent,"%sB",format);
           break;
@@ -2856,6 +2934,8 @@ MagickExport const char *GetMagickProper
             kurtosis,
             skewness;
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
+          WarnNoImageInfoReturn("\"%%[%s]\"",property);
           (void) GetImageChannelKurtosis(image,image_info->channel,&kurtosis,
             &skewness,&image->exception);
           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
@@ -2869,6 +2949,8 @@ MagickExport const char *GetMagickProper
             mean,
             standard_deviation;
 
+          WarnNoImageReturn("\"%%[%s]\"",property);
+          WarnNoImageInfoReturn("\"%%[%s]\"",property);
           (void) GetImageChannelMean(image,image_info->channel,&mean,
             &standard_deviation,&image->exception);
           (void) FormatLocaleString(value,MaxTextExtent,"%.*g",
@@ -2881,6 +2963,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("type",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           string=CommandOptionToMnemonic(MagickTypeOptions,(ssize_t)
             GetImageType(image,&image->exception));
           break;
@@ -2892,6 +2975,7 @@ MagickExport const char *GetMagickProper
       if ((image_info != (ImageInfo *) NULL) &&
           (LocaleCompare("unique",property) == 0))
         {
+          WarnNoImageInfoReturn("\"%%[%s]\"",property);
           string=image_info->unique;
           break;
         }
@@ -2900,6 +2984,7 @@ MagickExport const char *GetMagickProper
           /*
             Image resolution units.
           */
+          WarnNoImageReturn("\"%%[%s]\"",property);
           string=CommandOptionToMnemonic(MagickResolutionOptions,(ssize_t)
             image->units);
           break;
@@ -2919,6 +3004,7 @@ MagickExport const char *GetMagickProper
     {
       if (LocaleCompare("width",property) == 0)
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",(double)
             (image->magick_columns != 0 ? image->magick_columns : 256));
           break;
@@ -2930,6 +3016,7 @@ MagickExport const char *GetMagickProper
       if ((LocaleCompare("xresolution",property) == 0) ||
           (LocaleCompare("x-resolution",property) == 0) )
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
             image->x_resolution);
           break;
@@ -2941,6 +3028,7 @@ MagickExport const char *GetMagickProper
       if ((LocaleCompare("yresolution",property) == 0) ||
           (LocaleCompare("y-resolution",property) == 0) )
         {
+          WarnNoImageReturn("\"%%[%s]\"",property);
           (void) FormatLocaleString(value,MaxTextExtent,"%.20g",
            image->y_resolution);
           break;
@@ -2952,6 +3040,7 @@ MagickExport const char *GetMagickProper
       if ((image_info != (ImageInfo *) NULL) &&
           (LocaleCompare("zero",property) == 0))
         {
+          WarnNoImageInfoReturn("\"%%[%s]\"",property);
           string=image_info->zero;
           break;
         }
@@ -2962,6 +3051,7 @@ MagickExport const char *GetMagickProper
     string=value;
   if (string != (char *) NULL)
     {
+       WarnNoImageInfoReturn("\"%%[%s]\"",property);
       (void) SetImageArtifact(image,"get-property", string);
       return(GetImageArtifact(image,"get-property"));
     }