[GitHub/mt8127/android_kernel_alcatel_ttab.git] / fs / cifs / cifs_unicode.h

/*
 * cifs_unicode:  Unicode kernel case support
 *
 * Function:
 *     Convert a unicode character to upper or lower case using
 *     compressed tables.
 *
 *   Copyright (c) International Business Machines  Corp., 2000,2009
 *
 *   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
 *
 *
 * Notes:
 *     These APIs are based on the C library functions.  The semantics
 *     should match the C functions but with expanded size operands.
 *
 *     The upper/lower functions are based on a table created by mkupr.
 *     This is a compressed table of upper and lower case conversion.
 *
 */
#ifndef _CIFS_UNICODE_H
#define _CIFS_UNICODE_H

#include <asm/byteorder.h>
#include <linux/types.h>
#include <linux/nls.h>

#define  UNIUPR_NOLOWER		/* Example to not expand lower case tables */

/*
 * Windows maps these to the user defined 16 bit Unicode range since they are
 * reserved symbols (along with \ and /), otherwise illegal to store
 * in filenames in NTFS
 */
#define UNI_ASTERISK    (__u16) ('*' + 0xF000)
#define UNI_QUESTION    (__u16) ('?' + 0xF000)
#define UNI_COLON       (__u16) (':' + 0xF000)
#define UNI_GRTRTHAN    (__u16) ('>' + 0xF000)
#define UNI_LESSTHAN    (__u16) ('<' + 0xF000)
#define UNI_PIPE        (__u16) ('|' + 0xF000)
#define UNI_SLASH       (__u16) ('\\' + 0xF000)

/* Just define what we want from uniupr.h.  We don't want to define the tables
 * in each source file.
 */
#ifndef	UNICASERANGE_DEFINED
struct UniCaseRange {
	wchar_t start;
	wchar_t end;
	signed char *table;
};
#endif				/* UNICASERANGE_DEFINED */

#ifndef UNIUPR_NOUPPER
extern signed char CifsUniUpperTable[512];
extern const struct UniCaseRange CifsUniUpperRange[];
#endif				/* UNIUPR_NOUPPER */

#ifndef UNIUPR_NOLOWER
extern signed char CifsUniLowerTable[512];
extern const struct UniCaseRange CifsUniLowerRange[];
#endif				/* UNIUPR_NOLOWER */

#ifdef __KERNEL__
int cifs_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
		    const struct nls_table *codepage, bool mapchar);
int cifs_utf16_bytes(const __le16 *from, int maxbytes,
		     const struct nls_table *codepage);
int cifs_strtoUTF16(__le16 *, const char *, int, const struct nls_table *);
char *cifs_strndup_from_utf16(const char *src, const int maxlen,
			      const bool is_unicode,
			      const struct nls_table *codepage);
extern int cifsConvertToUTF16(__le16 *target, const char *source, int maxlen,
			      const struct nls_table *cp, int mapChars);
#ifdef CONFIG_CIFS_SMB2
extern __le16 *cifs_strndup_to_utf16(const char *src, const int maxlen,
				     int *utf16_len, const struct nls_table *cp,
				     int remap);
#endif /* CONFIG_CIFS_SMB2 */
#endif

/*
 * UniStrcat:  Concatenate the second string to the first
 *
 * Returns:
 *     Address of the first string
 */
static inline wchar_t *
UniStrcat(wchar_t *ucs1, const wchar_t *ucs2)
{
	wchar_t *anchor = ucs1;	/* save a pointer to start of ucs1 */

	while (*ucs1++) ;	/* To end of first string */
	ucs1--;			/* Return to the null */
	while ((*ucs1++ = *ucs2++)) ;	/* copy string 2 over */
	return anchor;
}

/*
 * UniStrchr:  Find a character in a string
 *
 * Returns:
 *     Address of first occurrence of character in string
 *     or NULL if the character is not in the string
 */
static inline wchar_t *
UniStrchr(const wchar_t *ucs, wchar_t uc)
{
	while ((*ucs != uc) && *ucs)
		ucs++;

	if (*ucs == uc)
		return (wchar_t *) ucs;
	return NULL;
}

/*
 * UniStrcmp:  Compare two strings
 *
 * Returns:
 *     < 0:  First string is less than second
 *     = 0:  Strings are equal
 *     > 0:  First string is greater than second
 */
static inline int
UniStrcmp(const wchar_t *ucs1, const wchar_t *ucs2)
{
	while ((*ucs1 == *ucs2) && *ucs1) {
		ucs1++;
		ucs2++;
	}
	return (int) *ucs1 - (int) *ucs2;
}

/*
 * 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;
}

/*
 * UniStrlen:  Return the length of a string (in 16 bit Unicode chars not bytes)
 */
static inline size_t
UniStrlen(const wchar_t *ucs1)
{
	int i = 0;

	while (*ucs1++)
		i++;
	return i;
}

/*
 * UniStrnlen:  Return the length (in 16 bit Unicode chars not bytes) of a
 *		string (length limited)
 */
static inline size_t
UniStrnlen(const wchar_t *ucs1, int maxlen)
{
	int i = 0;

	while (*ucs1++) {
		i++;
		if (i >= maxlen)
			break;
	}
	return i;
}

/*
 * UniStrncat:  Concatenate length limited string
 */
static inline wchar_t *
UniStrncat(wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
	wchar_t *anchor = ucs1;	/* save pointer to string 1 */

	while (*ucs1++) ;
	ucs1--;			/* point to null terminator of s1 */
	while (n-- && (*ucs1 = *ucs2)) {	/* copy s2 after s1 */
		ucs1++;
		ucs2++;
	}
	*ucs1 = 0;		/* Null terminate the result */
	return (anchor);
}

/*
 * UniStrncmp:  Compare length limited string
 */
static inline int
UniStrncmp(const wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
	if (!n)
		return 0;	/* Null strings are equal */
	while ((*ucs1 == *ucs2) && *ucs1 && --n) {
		ucs1++;
		ucs2++;
	}
	return (int) *ucs1 - (int) *ucs2;
}

/*
 * UniStrncmp_le:  Compare length limited string - native to little-endian
 */
static inline int
UniStrncmp_le(const wchar_t *ucs1, const wchar_t *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:  Copy length limited string with pad
 */
static inline wchar_t *
UniStrncpy(wchar_t *ucs1, const wchar_t *ucs2, size_t n)
{
	wchar_t *anchor = ucs1;

	while (n-- && *ucs2)	/* Copy the strings */
		*ucs1++ = *ucs2++;

	n++;
	while (n--)		/* Pad with nulls */
		*ucs1++ = 0;
	return anchor;
}

/*
 * UniStrncpy_le:  Copy length limited string with pad to little-endian
 */
static inline wchar_t *
UniStrncpy_le(wchar_t *ucs1, const wchar_t *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;
}

/*
 * UniStrstr:  Find a string in a string
 *
 * Returns:
 *     Address of first match found
 *     NULL if no matching string is found
 */
static inline wchar_t *
UniStrstr(const wchar_t *ucs1, const wchar_t *ucs2)
{
	const wchar_t *anchor1 = ucs1;
	const wchar_t *anchor2 = ucs2;

	while (*ucs1) {
		if (*ucs1 == *ucs2) {
			/* Partial match found */
			ucs1++;
			ucs2++;
		} else {
			if (!*ucs2)	/* Match found */
				return (wchar_t *) anchor1;
			ucs1 = ++anchor1;	/* No match */
			ucs2 = anchor2;
		}
	}

	if (!*ucs2)		/* Both end together */
		return (wchar_t *) anchor1;	/* Match found */
	return NULL;		/* No match */
}

#ifndef UNIUPR_NOUPPER
/*
 * UniToupper:  Convert a unicode character to upper case
 */
static inline wchar_t
UniToupper(register wchar_t uc)
{
	register const struct UniCaseRange *rp;

	if (uc < sizeof(CifsUniUpperTable)) {
		/* Latin characters */
		return uc + CifsUniUpperTable[uc];	/* Use base tables */
	} else {
		rp = CifsUniUpperRange;	/* 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(register wchar_t *upin)
{
	register wchar_t *up;

	up = upin;
	while (*up) {		/* For all characters */
		*up = UniToupper(*up);
		up++;
	}
	return upin;		/* Return input pointer */
}
#endif				/* UNIUPR_NOUPPER */

#ifndef UNIUPR_NOLOWER
/*
 * UniTolower:  Convert a unicode character to lower case
 */
static inline wchar_t
UniTolower(register wchar_t uc)
{
	register const struct UniCaseRange *rp;

	if (uc < sizeof(CifsUniLowerTable)) {
		/* Latin characters */
		return uc + CifsUniLowerTable[uc];	/* Use base tables */
	} else {
		rp = CifsUniLowerRange;	/* 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 */
}

/*
 * UniStrlwr:  Lower case a unicode string
 */
static inline wchar_t *
UniStrlwr(register wchar_t *upin)
{
	register wchar_t *up;

	up = upin;
	while (*up) {		/* For all characters */
		*up = UniTolower(*up);
		up++;
	}
	return upin;		/* Return input pointer */
}

#endif

#endif /* _CIFS_UNICODE_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* cifs_unicode: Unicode kernel case support
	3	*
	4	* Function:
	5	* Convert a unicode character to upper or lower case using
	6	* compressed tables.
	7	*
d185cda7	8	* Copyright (c) International Business Machines Corp., 2000,2009
1da177e4 LT	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
d38d8c74	12	* the Free Software Foundation; either version 2 of the License, or
1da177e4	13	* (at your option) any later version.
d38d8c74	14	*
1da177e4 LT	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
	18	* the GNU General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
d38d8c74	21	* along with this program; if not, write to the Free Software
1da177e4 LT	22	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	23	*
	24	*
	25	* Notes:
	26	* These APIs are based on the C library functions. The semantics
	27	* should match the C functions but with expanded size operands.
	28	*
	29	* The upper/lower functions are based on a table created by mkupr.
	30	* This is a compressed table of upper and lower case conversion.
	31	*
	32	*/
bf4f1211 ID	33	#ifndef _CIFS_UNICODE_H
bf4f1211 ID	34	#define _CIFS_UNICODE_H
1da177e4 LT	35
	36	#include <asm/byteorder.h>
	37	#include <linux/types.h>
	38	#include <linux/nls.h>
	39
	40	#define UNIUPR_NOLOWER /* Example to not expand lower case tables */
	41
66345f50 JL	42	/*
	43	* Windows maps these to the user defined 16 bit Unicode range since they are
	44	* reserved symbols (along with \ and /), otherwise illegal to store
	45	* in filenames in NTFS
	46	*/
581ade4d	47	#define UNI_ASTERISK (__u16) ('*' + 0xF000)
66345f50 JL	48	#define UNI_QUESTION (__u16) ('?' + 0xF000)
	49	#define UNI_COLON (__u16) (':' + 0xF000)
	50	#define UNI_GRTRTHAN (__u16) ('>' + 0xF000)
	51	#define UNI_LESSTHAN (__u16) ('<' + 0xF000)
	52	#define UNI_PIPE (__u16) ('\|' + 0xF000)
	53	#define UNI_SLASH (__u16) ('\\' + 0xF000)
	54
1da177e4 LT	55	/* Just define what we want from uniupr.h. We don't want to define the tables
	56	* in each source file.
	57	*/
	58	#ifndef UNICASERANGE_DEFINED
	59	struct UniCaseRange {
	60	wchar_t start;
	61	wchar_t end;
	62	signed char *table;
	63	};
	64	#endif /* UNICASERANGE_DEFINED */
	65
	66	#ifndef UNIUPR_NOUPPER
	67	extern signed char CifsUniUpperTable[512];
	68	extern const struct UniCaseRange CifsUniUpperRange[];
	69	#endif /* UNIUPR_NOUPPER */
	70
	71	#ifndef UNIUPR_NOLOWER
bf4f1211 ID	72	extern signed char CifsUniLowerTable[512];
bf4f1211 ID	73	extern const struct UniCaseRange CifsUniLowerRange[];
1da177e4 LT	74	#endif /* UNIUPR_NOLOWER */
	75
	76	#ifdef __KERNEL__
acbbb76a SF	77	int cifs_from_utf16(char to, const __le16 from, int tolen, int fromlen,
	78	const struct nls_table *codepage, bool mapchar);
	79	int cifs_utf16_bytes(const __le16 *from, int maxbytes,
	80	const struct nls_table *codepage);
	81	int cifs_strtoUTF16(__le16 , const char , int, const struct nls_table *);
	82	char cifs_strndup_from_utf16(const char src, const int maxlen,
	83	const bool is_unicode,
	84	const struct nls_table *codepage);
	85	extern int cifsConvertToUTF16(__le16 target, const char source, int maxlen,
	86	const struct nls_table *cp, int mapChars);
2503a0db PS	87	#ifdef CONFIG_CIFS_SMB2
	88	extern __le16 cifs_strndup_to_utf16(const char src, const int maxlen,
	89	int utf16_len, const struct nls_table cp,
	90	int remap);
	91	#endif /* CONFIG_CIFS_SMB2 */
1da177e4 LT	92	#endif
	93
	94	/*
	95	* UniStrcat: Concatenate the second string to the first
	96	*
	97	* Returns:
	98	* Address of the first string
	99	*/
	100	static inline wchar_t *
50c2f753	101	UniStrcat(wchar_t ucs1, const wchar_t ucs2)
1da177e4 LT	102	{
	103	wchar_t anchor = ucs1; / save a pointer to start of ucs1 */
	104
	105	while (ucs1++) ; / To end of first string */
	106	ucs1--; /* Return to the null */
	107	while ((ucs1++ = ucs2++)) ; /* copy string 2 over */
	108	return anchor;
	109	}
	110
	111	/*
	112	* UniStrchr: Find a character in a string
	113	*
	114	* Returns:
	115	* Address of first occurrence of character in string
	116	* or NULL if the character is not in the string
	117	*/
	118	static inline wchar_t *
50c2f753	119	UniStrchr(const wchar_t *ucs, wchar_t uc)
1da177e4 LT	120	{
	121	while ((ucs != uc) && ucs)
	122	ucs++;
	123
	124	if (*ucs == uc)
	125	return (wchar_t *) ucs;
	126	return NULL;
	127	}
	128
	129	/*
	130	* UniStrcmp: Compare two strings
	131	*
	132	* Returns:
	133	* < 0: First string is less than second
	134	* = 0: Strings are equal
	135	* > 0: First string is greater than second
	136	*/
	137	static inline int
50c2f753	138	UniStrcmp(const wchar_t ucs1, const wchar_t ucs2)
1da177e4 LT	139	{
	140	while ((ucs1 == ucs2) && *ucs1) {
	141	ucs1++;
	142	ucs2++;
	143	}
	144	return (int) ucs1 - (int) ucs2;
	145	}
	146
	147	/*
	148	* UniStrcpy: Copy a string
	149	*/
	150	static inline wchar_t *
50c2f753	151	UniStrcpy(wchar_t ucs1, const wchar_t ucs2)
1da177e4 LT	152	{
	153	wchar_t anchor = ucs1; / save the start of result string */
	154
	155	while ((ucs1++ = ucs2++)) ;
	156	return anchor;
	157	}
	158
	159	/*
	160	* UniStrlen: Return the length of a string (in 16 bit Unicode chars not bytes)
	161	*/
	162	static inline size_t
50c2f753	163	UniStrlen(const wchar_t *ucs1)
1da177e4 LT	164	{
	165	int i = 0;
	166
	167	while (*ucs1++)
	168	i++;
	169	return i;
	170	}
	171
	172	/*
d38d8c74 SF	173	* UniStrnlen: Return the length (in 16 bit Unicode chars not bytes) of a
d38d8c74 SF	174	* string (length limited)
1da177e4 LT	175	*/
1da177e4 LT	176	static inline size_t
50c2f753	177	UniStrnlen(const wchar_t *ucs1, int maxlen)
1da177e4 LT	178	{
	179	int i = 0;
	180
	181	while (*ucs1++) {
	182	i++;
	183	if (i >= maxlen)
	184	break;
	185	}
	186	return i;
	187	}
	188
	189	/*
	190	* UniStrncat: Concatenate length limited string
	191	*/
	192	static inline wchar_t *
50c2f753	193	UniStrncat(wchar_t ucs1, const wchar_t ucs2, size_t n)
1da177e4 LT	194	{
	195	wchar_t anchor = ucs1; / save pointer to string 1 */
	196
	197	while (*ucs1++) ;
	198	ucs1--; /* point to null terminator of s1 */
	199	while (n-- && (ucs1 = ucs2)) { /* copy s2 after s1 */
	200	ucs1++;
	201	ucs2++;
	202	}
	203	ucs1 = 0; / Null terminate the result */
	204	return (anchor);
	205	}
	206
	207	/*
	208	* UniStrncmp: Compare length limited string
	209	*/
	210	static inline int
50c2f753	211	UniStrncmp(const wchar_t ucs1, const wchar_t ucs2, size_t n)
1da177e4 LT	212	{
	213	if (!n)
	214	return 0; /* Null strings are equal */
	215	while ((ucs1 == ucs2) && *ucs1 && --n) {
	216	ucs1++;
	217	ucs2++;
	218	}
	219	return (int) ucs1 - (int) ucs2;
	220	}
	221
	222	/*
	223	* UniStrncmp_le: Compare length limited string - native to little-endian
	224	*/
	225	static inline int
50c2f753	226	UniStrncmp_le(const wchar_t ucs1, const wchar_t ucs2, size_t n)
1da177e4 LT	227	{
	228	if (!n)
	229	return 0; /* Null strings are equal */
	230	while ((ucs1 == __le16_to_cpu(ucs2)) && *ucs1 && --n) {
	231	ucs1++;
	232	ucs2++;
	233	}
	234	return (int) ucs1 - (int) __le16_to_cpu(ucs2);
	235	}
	236
	237	/*
	238	* UniStrncpy: Copy length limited string with pad
	239	*/
	240	static inline wchar_t *
50c2f753	241	UniStrncpy(wchar_t ucs1, const wchar_t ucs2, size_t n)
1da177e4 LT	242	{
	243	wchar_t *anchor = ucs1;
	244
	245	while (n-- && ucs2) / Copy the strings */
	246	ucs1++ = ucs2++;
	247
	248	n++;
	249	while (n--) /* Pad with nulls */
	250	*ucs1++ = 0;
	251	return anchor;
	252	}
	253
	254	/*
	255	* UniStrncpy_le: Copy length limited string with pad to little-endian
	256	*/
	257	static inline wchar_t *
50c2f753	258	UniStrncpy_le(wchar_t ucs1, const wchar_t ucs2, size_t n)
1da177e4 LT	259	{
	260	wchar_t *anchor = ucs1;
	261
	262	while (n-- && ucs2) / Copy the strings */
	263	ucs1++ = __le16_to_cpu(ucs2++);
	264
	265	n++;
	266	while (n--) /* Pad with nulls */
	267	*ucs1++ = 0;
	268	return anchor;
	269	}
	270
	271	/*
	272	* UniStrstr: Find a string in a string
	273	*
	274	* Returns:
	275	* Address of first match found
	276	* NULL if no matching string is found
	277	*/
	278	static inline wchar_t *
50c2f753	279	UniStrstr(const wchar_t ucs1, const wchar_t ucs2)
1da177e4 LT	280	{
	281	const wchar_t *anchor1 = ucs1;
	282	const wchar_t *anchor2 = ucs2;
	283
	284	while (*ucs1) {
ad7a2926 SF	285	if (ucs1 == ucs2) {
ad7a2926 SF	286	/* Partial match found */
1da177e4 LT	287	ucs1++;
	288	ucs2++;
	289	} else {
	290	if (!ucs2) / Match found */
	291	return (wchar_t *) anchor1;
	292	ucs1 = ++anchor1; /* No match */
	293	ucs2 = anchor2;
	294	}
	295	}
	296
	297	if (!ucs2) / Both end together */
	298	return (wchar_t ) anchor1; / Match found */
	299	return NULL; /* No match */
	300	}
	301
	302	#ifndef UNIUPR_NOUPPER
	303	/*
	304	* UniToupper: Convert a unicode character to upper case
	305	*/
	306	static inline wchar_t
	307	UniToupper(register wchar_t uc)
	308	{
	309	register const struct UniCaseRange *rp;
	310
ad7a2926 SF	311	if (uc < sizeof(CifsUniUpperTable)) {
ad7a2926 SF	312	/* Latin characters */
1da177e4 LT	313	return uc + CifsUniUpperTable[uc]; /* Use base tables */
	314	} else {
	315	rp = CifsUniUpperRange; /* Use range tables */
	316	while (rp->start) {
	317	if (uc < rp->start) /* Before start of range */
	318	return uc; /* Uppercase = input */
	319	if (uc <= rp->end) /* In range */
	320	return uc + rp->table[uc - rp->start];
	321	rp++; /* Try next range */
	322	}
	323	}
	324	return uc; /* Past last range */
	325	}
	326
	327	/*
	328	* UniStrupr: Upper case a unicode string
	329	*/
	330	static inline wchar_t *
50c2f753	331	UniStrupr(register wchar_t *upin)
1da177e4 LT	332	{
	333	register wchar_t *up;
	334
	335	up = upin;
	336	while (up) { / For all characters */
	337	up = UniToupper(up);
	338	up++;
	339	}
	340	return upin; /* Return input pointer */
	341	}
	342	#endif /* UNIUPR_NOUPPER */
	343
	344	#ifndef UNIUPR_NOLOWER
	345	/*
	346	* UniTolower: Convert a unicode character to lower case
	347	*/
	348	static inline wchar_t
bf4f1211	349	UniTolower(register wchar_t uc)
1da177e4	350	{
bf4f1211	351	register const struct UniCaseRange *rp;
1da177e4	352
bf4f1211	353	if (uc < sizeof(CifsUniLowerTable)) {
ad7a2926	354	/* Latin characters */
bf4f1211	355	return uc + CifsUniLowerTable[uc]; /* Use base tables */
1da177e4	356	} else {
bf4f1211	357	rp = CifsUniLowerRange; /* Use range tables */
1da177e4 LT	358	while (rp->start) {
	359	if (uc < rp->start) /* Before start of range */
	360	return uc; /* Uppercase = input */
	361	if (uc <= rp->end) /* In range */
	362	return uc + rp->table[uc - rp->start];
	363	rp++; /* Try next range */
	364	}
	365	}
	366	return uc; /* Past last range */
	367	}
	368
	369	/*
	370	* UniStrlwr: Lower case a unicode string
	371	*/
	372	static inline wchar_t *
50c2f753	373	UniStrlwr(register wchar_t *upin)
1da177e4 LT	374	{
	375	register wchar_t *up;
	376
	377	up = upin;
	378	while (up) { / For all characters */
	379	up = UniTolower(up);
	380	up++;
	381	}
	382	return upin; /* Return input pointer */
	383	}
	384
	385	#endif
bf4f1211 ID	386
bf4f1211 ID	387	#endif /* _CIFS_UNICODE_H */