1a59d1b8e0
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
143 lines
3.1 KiB
C
143 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) International Business Machines Corp., 2000-2002
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* Portions Copyright (C) Christoph Hellwig, 2001-2002
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*/
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#ifndef _H_JFS_UNICODE
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#define _H_JFS_UNICODE
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#include <linux/slab.h>
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#include <asm/byteorder.h>
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#include "jfs_types.h"
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typedef struct {
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wchar_t start;
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wchar_t end;
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signed char *table;
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} UNICASERANGE;
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extern signed char UniUpperTable[512];
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extern UNICASERANGE UniUpperRange[];
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extern int get_UCSname(struct component_name *, struct dentry *);
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extern int jfs_strfromUCS_le(char *, const __le16 *, int, struct nls_table *);
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#define free_UCSname(COMP) kfree((COMP)->name)
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/*
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* UniStrcpy: Copy a string
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*/
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static inline wchar_t *UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2)
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{
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wchar_t *anchor = ucs1; /* save the start of result string */
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while ((*ucs1++ = *ucs2++));
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return anchor;
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}
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/*
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* UniStrncpy: Copy length limited string with pad
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*/
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static inline __le16 *UniStrncpy_le(__le16 * ucs1, const __le16 * ucs2,
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size_t n)
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{
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__le16 *anchor = ucs1;
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while (n-- && *ucs2) /* Copy the strings */
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*ucs1++ = *ucs2++;
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n++;
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while (n--) /* Pad with nulls */
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*ucs1++ = 0;
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return anchor;
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}
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/*
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* UniStrncmp_le: Compare length limited string - native to little-endian
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*/
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static inline int UniStrncmp_le(const wchar_t * ucs1, const __le16 * ucs2,
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size_t n)
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{
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if (!n)
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return 0; /* Null strings are equal */
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while ((*ucs1 == __le16_to_cpu(*ucs2)) && *ucs1 && --n) {
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ucs1++;
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ucs2++;
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}
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return (int) *ucs1 - (int) __le16_to_cpu(*ucs2);
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}
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/*
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* UniStrncpy_to_le: Copy length limited string with pad to little-endian
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*/
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static inline __le16 *UniStrncpy_to_le(__le16 * ucs1, const wchar_t * ucs2,
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size_t n)
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{
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__le16 *anchor = ucs1;
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while (n-- && *ucs2) /* Copy the strings */
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*ucs1++ = cpu_to_le16(*ucs2++);
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n++;
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while (n--) /* Pad with nulls */
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*ucs1++ = 0;
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return anchor;
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}
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/*
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* UniStrncpy_from_le: Copy length limited string with pad from little-endian
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*/
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static inline wchar_t *UniStrncpy_from_le(wchar_t * ucs1, const __le16 * ucs2,
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size_t n)
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{
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wchar_t *anchor = ucs1;
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while (n-- && *ucs2) /* Copy the strings */
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*ucs1++ = __le16_to_cpu(*ucs2++);
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n++;
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while (n--) /* Pad with nulls */
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*ucs1++ = 0;
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return anchor;
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}
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/*
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* UniToupper: Convert a unicode character to upper case
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*/
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static inline wchar_t UniToupper(wchar_t uc)
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{
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UNICASERANGE *rp;
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if (uc < sizeof(UniUpperTable)) { /* Latin characters */
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return uc + UniUpperTable[uc]; /* Use base tables */
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} else {
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rp = UniUpperRange; /* Use range tables */
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while (rp->start) {
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if (uc < rp->start) /* Before start of range */
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return uc; /* Uppercase = input */
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if (uc <= rp->end) /* In range */
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return uc + rp->table[uc - rp->start];
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rp++; /* Try next range */
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}
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}
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return uc; /* Past last range */
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}
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/*
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* UniStrupr: Upper case a unicode string
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*/
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static inline wchar_t *UniStrupr(wchar_t * upin)
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{
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wchar_t *up;
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up = upin;
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while (*up) { /* For all characters */
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*up = UniToupper(*up);
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up++;
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}
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return upin; /* Return input pointer */
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}
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#endif /* !_H_JFS_UNICODE */
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