From 1e7d217a323eac701b134afc4ae39b6bdfdbc96a Mon Sep 17 00:00:00 2001
From: Su_Laus <sulau@freenet.de>
Date: Sat, 9 Sep 2023 15:45:47 +0200
Subject: [PATCH] Check also if codec of input image is available,
 independently from codec check of output image and return with error if not.
 Fixes #606.

---
 tools/tiffcp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/tiffcp.c b/tools/tiffcp.c
index aff06260..2628bdbb 100644
--- a/tools/tiffcp.c
+++ b/tools/tiffcp.c
@@ -846,6 +846,8 @@ static int tiffcp(TIFF *in, TIFF *out)
     if (!TIFFIsCODECConfigured(compression))
         return FALSE;
     TIFFGetFieldDefaulted(in, TIFFTAG_COMPRESSION, &input_compression);
+    if (!TIFFIsCODECConfigured(input_compression))
+        return FALSE;
     TIFFGetFieldDefaulted(in, TIFFTAG_PHOTOMETRIC, &input_photometric);
     if (input_compression == COMPRESSION_JPEG)
     {
-- 
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