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-rw-r--r--libc/string/generic/strcpy.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/libc/string/generic/strcpy.c b/libc/string/generic/strcpy.c
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+++ b/libc/string/generic/strcpy.c
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+/* Copyright (C) 1991, 1997, 2000, 2003 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <string.h>
+#include <stddef.h>
+
+#include "memcopy.h"
+#include "bp-checks.h"
+
+#undef strcpy
+
+/* Copy SRC to DEST. */
+char *
+strcpy (dest, src)
+ char *dest;
+ const char *src;
+{
+ reg_char c;
+ char *__unbounded s = (char *__unbounded) CHECK_BOUNDS_LOW (src);
+ const ptrdiff_t off = CHECK_BOUNDS_LOW (dest) - s - 1;
+ size_t n;
+
+ do
+ {
+ c = *s++;
+ s[off] = c;
+ }
+ while (c != '\0');
+
+ n = s - src;
+ (void) CHECK_BOUNDS_HIGH (src + n);
+ (void) CHECK_BOUNDS_HIGH (dest + n);
+
+ return dest;
+}