From 0f293b96dc6effa127ec63e11dd16221f1329126 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Tue, 22 Jul 2008 20:16:55 +0000
Subject: fix all cases of strcpy on overlapping strings.

---
 libbb/safe_strncpy.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'libbb/safe_strncpy.c')

diff --git a/libbb/safe_strncpy.c b/libbb/safe_strncpy.c
index 649fa10cf..4acd9766b 100644
--- a/libbb/safe_strncpy.c
+++ b/libbb/safe_strncpy.c
@@ -16,3 +16,12 @@ char* FAST_FUNC safe_strncpy(char *dst, const char *src, size_t size)
 	dst[--size] = '\0';
 	return strncpy(dst, src, size);
 }
+
+/* Like strcpy but can copy overlapping strings. */
+void FAST_FUNC overlapping_strcpy(char *dst, const char *src)
+{
+	while ((*dst = *src) != '\0') {
+		dst++;
+		src++;
+	}
+}
-- 
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