Sanity check HWResolution when writing Apple Raster.

michaelrsweet · michaelrsweet · commit 9e4c8585d47c · 2026-04-05T09:46:32.000-04:00
diff --git a/cups/raster-stream.c b/cups/raster-stream.c
@@ -1268,6 +1268,9 @@ _cupsRasterWriteHeader(
 
   if (r->mode == CUPS_RASTER_WRITE_APPLE)
   {
+    if (r->header.HWResolution[0] == 0 || r->header.HWResolution[1] == 0)
+      return (0);
+
     r->rowheight = r->header.HWResolution[0] / r->header.HWResolution[1];
 
     if (r->header.HWResolution[0] != (r->rowheight * r->header.HWResolution[1]))

Original file line number	Diff line number	Diff line change
`@@ -1268,6 +1268,9 @@ _cupsRasterWriteHeader(`
`1268`	`1268`
`1269`	`1269`	`if (r->mode == CUPS_RASTER_WRITE_APPLE)`
`1270`	`1270`	`{`
	`1271`	`+ if (r->header.HWResolution[0] == 0 \|\| r->header.HWResolution[1] == 0)`
	`1272`	`+ return (0);`
	`1273`	`+`
`1271`	`1274`	`r->rowheight = r->header.HWResolution[0] / r->header.HWResolution[1];`
`1272`	`1275`
`1273`	`1276`	`if (r->header.HWResolution[0] != (r->rowheight * r->header.HWResolution[1]))`