From 5723e501abb675701352eb3e9fd58bb3cc2c649d Mon Sep 17 00:00:00 2001
From: Jacques Vidrine <nectar@FreeBSD.org>
Date: Tue, 29 Apr 2003 21:13:50 +0000
Subject: `Hide' strlcpy and strlcat (using the namespace.h / __weak_reference
 technique) so that we don't wind up calling into an application's version if
 the application defines them.

Inspired by:	qpopper's interfering and buggy version of strlcpy
---
 lib/libc/string/strerror.c | 8 +++++---
 lib/libc/string/strlcat.c  | 5 ++++-
 lib/libc/string/strlcpy.c  | 5 ++++-
 3 files changed, 13 insertions(+), 5 deletions(-)

(limited to 'lib/libc/string')

diff --git a/lib/libc/string/strerror.c b/lib/libc/string/strerror.c
index 02fba0cfcd39..0c20ac38c289 100644
--- a/lib/libc/string/strerror.c
+++ b/lib/libc/string/strerror.c
@@ -37,9 +37,11 @@ static char sccsid[] = "@(#)strerror.c	8.1 (Berkeley) 6/4/93";
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include "namespace.h"
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#include "un-namespace.h"
 
 #define	UPREFIX		"Unknown error: "
 
@@ -69,8 +71,8 @@ errstr(int num, char *buf, size_t len)
 	} while (uerr /= 10);
 	if (num < 0)
 		*--t = '-';
-	strlcpy(buf, UPREFIX, len);
-	strlcat(buf, t, len);
+	_strlcpy(buf, UPREFIX, len);
+	_strlcat(buf, t, len);
 }
 
 int
@@ -81,7 +83,7 @@ strerror_r(int errnum, char *strerrbuf, size_t buflen)
 		errstr(errnum, strerrbuf, buflen);
 		return (EINVAL);
 	}
-	if (strlcpy(strerrbuf, sys_errlist[errnum], buflen) >= buflen)
+	if (_strlcpy(strerrbuf, sys_errlist[errnum], buflen) >= buflen)
 		return (ERANGE);
 	return (0);
 }
diff --git a/lib/libc/string/strlcat.c b/lib/libc/string/strlcat.c
index 2c2fa568e223..cd9fc433b3f6 100644
--- a/lib/libc/string/strlcat.c
+++ b/lib/libc/string/strlcat.c
@@ -33,9 +33,12 @@ static char *rcsid = "$OpenBSD: strlcat.c,v 1.2 1999/06/17 16:28:58 millert Exp
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include "namespace.h"
 #include <sys/types.h>
 #include <string.h>
+#include "un-namespace.h"
 
+__weak_reference(_strlcat, strlcat);
 /*
  * Appends src to string dst of size siz (unlike strncat, siz is the
  * full size of dst, not space left).  At most siz-1 characters
@@ -44,7 +47,7 @@ __FBSDID("$FreeBSD$");
  * If retval >= siz, truncation occurred.
  */
 size_t
-strlcat(dst, src, siz)
+_strlcat(dst, src, siz)
 	char *dst;
 	const char *src;
 	size_t siz;
diff --git a/lib/libc/string/strlcpy.c b/lib/libc/string/strlcpy.c
index a8a6cb7da86b..74f511d78378 100644
--- a/lib/libc/string/strlcpy.c
+++ b/lib/libc/string/strlcpy.c
@@ -33,15 +33,18 @@ static char *rcsid = "$OpenBSD: strlcpy.c,v 1.4 1999/05/01 18:56:41 millert Exp
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include "namespace.h"
 #include <sys/types.h>
 #include <string.h>
+#include "un-namespace.h"
 
+__weak_reference(_strlcpy, strlcpy);
 /*
  * Copy src to string dst of size siz.  At most siz-1 characters
  * will be copied.  Always NUL terminates (unless siz == 0).
  * Returns strlen(src); if retval >= siz, truncation occurred.
  */
-size_t strlcpy(dst, src, siz)
+size_t _strlcpy(dst, src, siz)
 	char *dst;
 	const char *src;
 	size_t siz;
-- 
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