From 002a5978f015a77ecc48487006b1030f9dbe1394 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Thu, 31 May 2018 16:07:33 -0400 Subject: [PATCH 22/26] super-ddf: Fix gcc-8.1 overflow warnings Cast to types that are big enough to hold the values, but also guarantee no overflow of the buffer keepts gcc happy. Signed-off-by: Jes Sorensen --- super-ddf.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/super-ddf.c b/super-ddf.c index d02a19a2..618542c4 100644 --- a/super-ddf.c +++ b/super-ddf.c @@ -2881,8 +2881,9 @@ static int add_to_super_ddf(struct supertype *st, dd->disk.magic = DDF_PHYS_DATA_MAGIC; now = time(0); tm = localtime(&now); - sprintf(dd->disk.guid, "%8s%04d%02d%02d", - T10, tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday); + sprintf(dd->disk.guid, "%8s%04d%02d%02d", T10, + (__u16)tm->tm_year+1900, + (__u8)tm->tm_mon+1, (__u8)tm->tm_mday); tptr = (__u32 *)(dd->disk.guid + 16); *tptr++ = random32(); *tptr = random32(); -- 2.17.1