From a325f3c2066f5790e3a611157deffa74d975f8df Mon Sep 17 00:00:00 2001
From: Karel Zak
Date: Wed, 5 Oct 2016 11:11:45 +0200
Subject: rtcwake: make sure buffer is zero terminated [coverity scan]

---
 sys-utils/rtcwake.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'sys-utils/rtcwake.c')

diff --git a/sys-utils/rtcwake.c b/sys-utils/rtcwake.c
index f4e630a33..11f75ae9b 100644
--- a/sys-utils/rtcwake.c
+++ b/sys-utils/rtcwake.c
@@ -250,7 +250,7 @@ static char **get_sys_power_states(struct rtcwake_control *ctl)
 		fd = open(SYS_POWER_STATE_PATH, O_RDONLY);
 		if (fd < 0)
 			goto nothing;
-		if (read(fd, &buf, sizeof buf) <= 0)
+		if (read(fd, &buf, sizeof(buf) - 1) <= 0)
 			goto nothing;
 		ctl->possible_modes = strv_split(buf, " \n");
 		close(fd);
-- 
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