From 7b97eb41774019443f552ca1d49766b9798fee32 Mon Sep 17 00:00:00 2001
From: Roland Lutz <rlutz@hedmen.org>
Date: Thu, 8 Jun 2017 19:40:08 +0200
Subject: iceprog: When reading, don't write more bytes than requested

---
 iceprog/iceprog.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'iceprog/iceprog.c')

diff --git a/iceprog/iceprog.c b/iceprog/iceprog.c
index e4e6f49..5233c46 100644
--- a/iceprog/iceprog.c
+++ b/iceprog/iceprog.c
@@ -742,7 +742,8 @@ int main(int argc, char **argv)
 			for (int addr = 0; addr < read_size; addr += 256) {
 				uint8_t buffer[256];
 				flash_read(rw_offset + addr, buffer, 256);
-				fwrite(buffer, 256, 1, f);
+				fwrite(buffer, read_size - addr > 256 ? 256 :
+					       read_size - addr, 1, f);
 			}
 		}
 		else
-- 
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