[patch] Proposed patch

tiff-4.4.0_rc1-fix-tiff-append-ec.patch (text/plain), 863 bytes, created by cmwatts on 2022-11-29 21:16:20 UTC

https://gitlab.com/libtiff/libtiff/-/merge_requests/430

Regression in tif_write.c causes hylafax to write corrupt TIFFs
when multi-strip (multi-block) page images are written

Fixes: https://gitlab.com/libtiff/libtiff/-/issues/489
--- a/libtiff/tif_write.c	2022-04-22 09:51:48.000000000 -0700
+++ b/libtiff/tif_write.c	2022-11-29 08:17:10.692592173 -0800
@@ -341,10 +341,13 @@
 			return ((tmsize_t) -1);
 	}
 
-	tif->tif_curstrip = strip;
+    if (tif->tif_curstrip != strip)
+    {
+        tif->tif_curstrip = strip;
 
-	/* this informs TIFFAppendToStrip() we have changed or reset strip */
-	tif->tif_curoff = 0;
+        /* this informs TIFFAppendToStrip() we have changed or reset strip */
+        tif->tif_curoff = 0;
+    }
 
         if (td->td_stripsperimage == 0) {
                 TIFFErrorExt(tif->tif_clientdata, module,"Zero strips per image");