1 files changed, 155 insertions, 0 deletions

diff --git a/fs/jfs/jfs_unicode.h b/fs/jfs/jfs_unicode.h
new file mode 100644
index 000000000000..69e25ebe87ac
--- /dev/null
+++ b/fs/jfs/jfs_unicode.h
@@ -0,0 +1,155 @@
+/*
+ *   Copyright (c) International Business Machines Corp., 2000-2002
+ *   Portions Copyright (c) Christoph Hellwig, 2001-2002
+ *
+ *   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
+ */
+#ifndef _H_JFS_UNICODE
+#define _H_JFS_UNICODE
+
+#include <asm/byteorder.h>
+#include "jfs_types.h"
+
+typedef struct {
+        wchar_t start;
+        wchar_t end;
+        signed char *table;
+} UNICASERANGE;
+
+extern signed char UniUpperTable[512];
+extern UNICASERANGE UniUpperRange[];
+extern int get_UCSname(struct component_name *, struct dentry *);
+extern int jfs_strfromUCS_le(char *, const __le16 *, int, struct nls_table *);
+
+#define free_UCSname(COMP) kfree((COMP)->name)
+
+/*
+ * UniStrcpy:  Copy a string
+ */
+static inline wchar_t *UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2)
+{
+        wchar_t *anchor = ucs1; /* save the start of result string */
+
+        while ((*ucs1++ = *ucs2++));
+        return anchor;
+}
+
+
+
+/*
+ * UniStrncpy:  Copy length limited string with pad
+ */
+static inline __le16 *UniStrncpy_le(__le16 * ucs1, const __le16 * ucs2,
+                                  size_t n)
+{
+        __le16 *anchor = ucs1;
+
+        while (n-- && *ucs2)    /* Copy the strings */
+                *ucs1++ = *ucs2++;
+
+        n++;
+        while (n--)             /* Pad with nulls */
+                *ucs1++ = 0;
+        return anchor;
+}
+
+/*
+ * UniStrncmp_le:  Compare length limited string - native to little-endian
+ */
+static inline int UniStrncmp_le(const wchar_t * ucs1, const __le16 * ucs2,
+                                size_t n)
+{
+        if (!n)
+                return 0;       /* Null strings are equal */
+        while ((*ucs1 == __le16_to_cpu(*ucs2)) && *ucs1 && --n) {
+                ucs1++;
+                ucs2++;
+        }
+        return (int) *ucs1 - (int) __le16_to_cpu(*ucs2);
+}
+
+/*
+ * UniStrncpy_to_le:  Copy length limited string with pad to little-endian
+ */
+static inline __le16 *UniStrncpy_to_le(__le16 * ucs1, const wchar_t * ucs2,
+                                       size_t n)
+{
+        __le16 *anchor = ucs1;
+
+        while (n-- && *ucs2)    /* Copy the strings */
+                *ucs1++ = cpu_to_le16(*ucs2++);
+
+        n++;
+        while (n--)             /* Pad with nulls */
+                *ucs1++ = 0;
+        return anchor;
+}
+
+/*
+ * UniStrncpy_from_le:  Copy length limited string with pad from little-endian
+ */
+static inline wchar_t *UniStrncpy_from_le(wchar_t * ucs1, const __le16 * ucs2,
+                                          size_t n)
+{
+        wchar_t *anchor = ucs1;
+
+        while (n-- && *ucs2)    /* Copy the strings */
+                *ucs1++ = __le16_to_cpu(*ucs2++);
+
+        n++;
+        while (n--)             /* Pad with nulls */
+                *ucs1++ = 0;
+        return anchor;
+}
+
+/*
+ * UniToupper:  Convert a unicode character to upper case
+ */
+static inline wchar_t UniToupper(wchar_t uc)
+{
+        UNICASERANGE *rp;
+
+        if (uc < sizeof(UniUpperTable)) {       /* Latin characters */
+                return uc + UniUpperTable[uc];  /* Use base tables */
+        } else {
+                rp = UniUpperRange;     /* Use range tables */
+                while (rp->start) {
+                        if (uc < rp->start)     /* Before start of range */
+                                return uc;      /* Uppercase = input */
+                        if (uc <= rp->end)      /* In range */
+                                return uc + rp->table[uc - rp->start];
+                        rp++;   /* Try next range */
+                }
+        }
+        return uc;              /* Past last range */
+}
+
+
+/*
+ * UniStrupr:  Upper case a unicode string
+ */
+static inline wchar_t *UniStrupr(wchar_t * upin)
+{
+        wchar_t *up;
+
+        up = upin;
+        while (*up) {           /* For all characters */
+                *up = UniToupper(*up);
+                up++;
+        }
+        return upin;            /* Return input pointer */
+}
+
+#endif                          /* !_H_JFS_UNICODE */