strcpy/strcat/sprintf removal in all bootblocks. various testing by

various people.  outside of some messy things in src/gnu, only one
thing in the main tree now violates this rule: bind

1 files changed, 83 insertions, 0 deletions

diff --git a/sys/lib/libsa/snprintf.c b/sys/lib/libsa/snprintf.c
new file mode 100644
index 00000000000..036bab74b94
--- /dev/null
+++ b/sys/lib/libsa/snprintf.c
@@ -0,0 +1,83 @@
+/*	$OpenBSD: snprintf.c,v 1.1 2003/06/01 17:00:33 deraadt Exp $	*/
+/*	$NetBSD: printf.c,v 1.10 1996/11/30 04:19:21 gwr Exp $	*/
+
+/*-
+ * Copyright (c) 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)printf.c	8.1 (Berkeley) 6/11/93
+ */
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <machine/stdarg.h>
+
+#include "stand.h"
+
+extern void kprintn(void (*)(int), u_long, int);
+extern void kdoprnt(void (*)(int), const char *, va_list);
+
+#ifndef	STRIPPED
+static void sputchar(int);
+
+static char *sbuf, *sbuf_end;
+static size_t sbuf_len;
+
+void
+sputchar(c)
+	int c;
+{
+	if (sbuf < sbuf_end)
+		*sbuf = c;
+	sbuf++;
+}
+
+int
+snprintf(char *buf, size_t len, const char *fmt, ...)
+{
+	va_list ap;
+
+	sbuf = buf;
+	sbuf_len = len;
+	sbuf_end = sbuf + len;
+	va_start(ap, fmt);
+	kdoprnt(sputchar, fmt, ap);
+	va_end(ap);
+
+	if (sbuf < sbuf_end)
+		*sbuf = '\0';
+	else if (len > 0)
+		*(sbuf_end - 1) = '\0';
+
+	return sbuf - buf;
+}
+
+#endif	/* STRIPPED */