From f660e8ef584e55924762ae49f5e500b55da2b74c Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Fri, 6 Jul 2007 13:07:10 +0100 Subject: [PATCH] Add strlen_user() (will be needed for PXE API extensions) --- src/arch/i386/include/librm.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/arch/i386/include/librm.h b/src/arch/i386/include/librm.h index 31bafb3e..9e9498cb 100644 --- a/src/arch/i386/include/librm.h +++ b/src/arch/i386/include/librm.h @@ -193,6 +193,18 @@ memset_user ( userptr_t buffer, off_t offset, int c, size_t len ) { memset ( ( ( void * ) buffer + offset ), c, len ); } +/** + * Find length of NUL-terminated string in user buffer + * + * @v buffer User buffer + * @v offset Offset within buffer + * @ret len Length of string (excluding NUL) + */ +static inline __attribute__ (( always_inline )) size_t +strlen_user ( userptr_t buffer, off_t offset ) { + return strlen ( ( void * ) buffer + offset ); +} + /** * Convert virtual address to user buffer *