diff options
Diffstat (limited to 'sysdeps/generic/strcpy.c')
| -rw-r--r-- | sysdeps/generic/strcpy.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sysdeps/generic/strcpy.c b/sysdeps/generic/strcpy.c index cb260cf85a..2317eba65c 100644 --- a/sysdeps/generic/strcpy.c +++ b/sysdeps/generic/strcpy.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1997, 2000 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -19,6 +19,7 @@ #include <stddef.h> #include <string.h> #include <memcopy.h> +#include <bp-checks.h> #undef strcpy @@ -29,8 +30,9 @@ strcpy (dest, src) const char *src; { reg_char c; - char *s = (char *) src; - const ptrdiff_t off = dest - src - 1; + char *__unbounded s = (char *__unbounded) CHECK_BOUNDS_LOW (src); + const ptrdiff_t off = CHECK_BOUNDS_LOW (dest) - s - 1; + size_t n; do { @@ -39,5 +41,9 @@ strcpy (dest, src) } while (c != '\0'); + n = s - src; + CHECK_BOUNDS_HIGH (src + n); + CHECK_BOUNDS_HIGH (dest + n); + return dest; } |