[gs-cvs] rev 8754 - trunk/gs/src

[giles at ghostscript.com]

Author: giles
Date: 2008-05-20 18:24:44 -0700 (Tue, 20 May 2008)
New Revision: 8754

Modified:
   trunk/gs/src/gdevcairo.c
Log:
Don't compare a NULL extension string.


Modified: trunk/gs/src/gdevcairo.c
===================================================================
--- trunk/gs/src/gdevcairo.c	2008-05-21 01:24:42 UTC (rev 8753)
+++ trunk/gs/src/gdevcairo.c	2008-05-21 01:24:44 UTC (rev 8754)
@@ -275,30 +275,30 @@
 	if (0)
 	  ;
 	#ifdef CAIRO_HAS_PNG_FUNCTIONS
-	    else if (0 == strcasecmp (extension, "png")) {
+	    else if (extension && 0 == strcasecmp (extension, "png")) {
 	        surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, dev->width, dev->height);
 		devcairo->should_write_png = true;
 	    }
 	#endif
 	#ifdef CAIRO_HAS_SVG_SURFACE
-	    else if (0 == strcasecmp (extension, "svg")) {
+	    else if (extension && 0 == strcasecmp (extension, "svg")) {
 		surface = cairo_svg_surface_create_for_stream (devcairo_write_func, dev, dev->MediaSize[0], dev->MediaSize[1]);
 		scale_to_points = true;
 	    }
 	#endif
 	#ifdef CAIRO_HAS_PDF_SURFACE
-	    else if (0 == strcasecmp (extension, "pdf")) {
+	    else if (extension && 0 == strcasecmp (extension, "pdf")) {
 		surface = cairo_pdf_surface_create_for_stream (devcairo_write_func, dev, dev->MediaSize[0], dev->MediaSize[1]);
 		scale_to_points = true;
 	    }
 	#endif
 	#ifdef CAIRO_HAS_PS_SURFACE
-	    else if (0 == strcasecmp (extension, "ps")) {
+	    else if (extension && 0 == strcasecmp (extension, "ps")) {
 		surface = cairo_ps_surface_create_for_stream (devcairo_write_func, dev, dev->MediaSize[0], dev->MediaSize[1]);
 		scale_to_points = true;
 	    }
 	  #ifdef HAS_EPS
-	    else if (0 == strcasecmp (extension, "eps")) {
+	    else if (extension && 0 == strcasecmp (extension, "eps")) {
 		surface = cairo_ps_surface_create_for_stream (devcairo_write_func, dev, dev->MediaSize[0], dev->MediaSize[1]);
 		cairo_ps_surface_set_eps (surface, true);
 		scale_to_points = true;