From 42f499986d3c8a1dce55db7d97d501f8e9dfc8f6 Mon Sep 17 00:00:00 2001
From: t.feng <fengtao40@huawei.com>
Date: Mon, 13 Dec 2021 21:03:13 +0800
Subject: [PATCH] fix raw2tiff floating point exception

if we input illegal nbands, like:
raw2tiff -b :2 test.raw test.tif
we got:
Floating point exception (core dumped)
so, check nbands before guessSize

---
 tools/raw2tiff.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/raw2tiff.c b/tools/raw2tiff.c
index dfee715..3a6f00e 100644
--- a/tools/raw2tiff.c
+++ b/tools/raw2tiff.c
@@ -209,6 +209,11 @@ main(int argc, char* argv[])
 		return (EXIT_FAILURE);
 	}
 
+	if (nbands == 0) {
+		fprintf(stderr, "The number of bands is illegal.\n");
+		return (-1);
+	}
+
 	if (guessSize(fd, dtype, hdr_size, nbands, swab, &width, &length) < 0)
 		return EXIT_FAILURE;
 
-- 
2.27.0