Revert "Switch to NetBSD's strxfrm(3)."

This reverts commit be1d78b0dc899a732c0e9d7515d3023e8004e368

Change-Id: I11a95db474796f3da004f27652b081d5ba4ec9b4

1 files changed, 47 insertions, 0 deletions

diff --git a/libc/string/strxfrm.c b/libc/string/strxfrm.c
new file mode 100755
index 0000000..3c4d707
--- /dev/null
+++ b/libc/string/strxfrm.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ */
+#include <string.h>
+
+/*
+ * Transform string s2 to string s1 using the current locale so that
+ * strcmp of transformed strings yields the same result as strcoll.
+ * Since Bionic really does not support locales, we assume we always use
+ * the C locale.
+ *
+ * This function is provided to make libstdc++-v3 usable.
+ */
+size_t
+strxfrm(char *s1, const char *s2, size_t n)
+{
+	size_t len = strlen(s2) + 1;
+
+	if (len < n)
+		n = len;
+	memcpy(s1, s2, n);
+	return len;
+}