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From 14c95e57fddb6c826bee7755232de62efc8eb45b Mon Sep 17 00:00:00 2001
From: Glenn Washburn <development@efficientek.com>
Date: Fri, 18 Aug 2023 12:15:27 -0500
Subject: kern/misc: Make grub_vsnprintf() C99/POSIX conformant
To comply with C99 and POSIX standards, snprintf() should return the
number of bytes that would be written to the string (excluding the
terminating NUL byte) if the buffer size was big enough. Before this
change, the return value was the minimum of the standard return and the
length of the buffer. Rarely is the return value of grub_snprintf() or
grub_vsnprintf() used with current code, and the few places where it is
used do not need to be changed.
Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/kern/misc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c
index 2890aad..b57249a 100644
--- a/grub-core/kern/misc.c
+++ b/grub-core/kern/misc.c
@@ -1201,7 +1201,7 @@ grub_vsnprintf (char *str, grub_size_t n, const char *fmt, va_list ap)
free_printf_args (&args);
- return ret < n ? ret : n;
+ return ret;
}
int
--
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