From e83dca9817614d0dc77ce1e5dc13eed44b61eb2f Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Tue, 4 Oct 2022 13:59:21 +0200
Subject: user/libc: camellia_open, takes cwd into account

---
 src/user/lib/string/strerror.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src/user/lib/string/strerror.c')

diff --git a/src/user/lib/string/strerror.c b/src/user/lib/string/strerror.c
index 1f5fc29..c838299 100644
--- a/src/user/lib/string/strerror.c
+++ b/src/user/lib/string/strerror.c
@@ -7,5 +7,7 @@ static const char *errstr[] = {
 };
 
 char *strerror(int n) {
-	return (char*)(errstr[n] ? errstr[n] : "unknown error");
+	if (0 <= n && n * sizeof(*errstr) < sizeof(errstr) && errstr[n])
+		return (char*)errstr[n];
+	return "unknown error";
 }
-- 
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