diff options
Diffstat (limited to 'user/grub/0005-vsnprintf.patch')
| -rw-r--r-- | user/grub/0005-vsnprintf.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/user/grub/0005-vsnprintf.patch b/user/grub/0005-vsnprintf.patch new file mode 100644 index 000000000..88c3e0f09 --- /dev/null +++ b/user/grub/0005-vsnprintf.patch @@ -0,0 +1,35 @@ +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 +-- +cgit v1.1 + |