1 files changed, 87 insertions, 0 deletions

diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c
new file mode 100644
index 000000000000..a17adf4cb9ba
--- /dev/null
+++ b/fs/cifs/cifs_unicode.c
@@ -0,0 +1,87 @@
+/*
+ *   fs/cifs/cifs_unicode.c
+ *
+ *   Copyright (c) International Business Machines  Corp., 2000,2002
+ *   Modified by Steve French (sfrench@us.ibm.com)
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or 
+ *   (at your option) any later version.
+ * 
+ *   This program 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 General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software 
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/fs.h>
+#include "cifs_unicode.h"
+#include "cifs_uniupr.h"
+#include "cifspdu.h"
+#include "cifs_debug.h"
+
+/*
+ * NAME:        cifs_strfromUCS()
+ *
+ * FUNCTION:    Convert little-endian unicode string to character string
+ *
+ */
+int
+cifs_strfromUCS_le(char *to, const wchar_t * from,      /* LITTLE ENDIAN */
+                   int len, const struct nls_table *codepage)
+{
+        int i;
+        int outlen = 0;
+
+        for (i = 0; (i < len) && from[i]; i++) {
+                int charlen;
+                /* 2.4.0 kernel or greater */
+                charlen =
+                    codepage->uni2char(le16_to_cpu(from[i]), &to[outlen],
+                                       NLS_MAX_CHARSET_SIZE);
+                if (charlen > 0) {
+                        outlen += charlen;
+                } else {
+                        to[outlen++] = '?';
+                }
+        }
+        to[outlen] = 0;
+        return outlen;
+}
+
+/*
+ * NAME:        cifs_strtoUCS()
+ *
+ * FUNCTION:    Convert character string to unicode string
+ *
+ */
+int
+cifs_strtoUCS(wchar_t * to, const char *from, int len,
+              const struct nls_table *codepage)
+{
+        int charlen;
+        int i;
+
+        for (i = 0; len && *from; i++, from += charlen, len -= charlen) {
+
+                /* works for 2.4.0 kernel or later */
+                charlen = codepage->char2uni(from, len, &to[i]);
+                if (charlen < 1) {
+                        cERROR(1,
+                               ("cifs_strtoUCS: char2uni returned %d",
+                                charlen));
+                        to[i] = cpu_to_le16(0x003f);    /* a question mark */
+                        charlen = 1;
+                }
+                to[i] = cpu_to_le16(to[i]);
+
+        }
+
+        to[i] = 0;
+        return i;
+}
+