1 files changed, 0 insertions, 493 deletions
diff --git a/ANDROID_3.4.5/fs/udf/unicode.c b/ANDROID_3.4.5/fs/udf/unicode.c
deleted file mode 100644
index 44b815e5..00000000
--- a/ANDROID_3.4.5/fs/udf/unicode.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/*
- * unicode.c
- *
- * PURPOSE
- *	Routines for converting between UTF-8 and OSTA Compressed Unicode.
- *      Also handles filename mangling
- *
- * DESCRIPTION
- *	OSTA Compressed Unicode is explained in the OSTA UDF specification.
- *		http://www.osta.org/
- *	UTF-8 is explained in the IETF RFC XXXX.
- *		ftp://ftp.internic.net/rfc/rfcxxxx.txt
- *
- * COPYRIGHT
- *	This file is distributed under the terms of the GNU General Public
- *	License (GPL). Copies of the GPL can be obtained from:
- *		ftp://prep.ai.mit.edu/pub/gnu/GPL
- *	Each contributing author retains all rights to their own work.
- */
-
-#include "udfdecl.h"
-
-#include <linux/kernel.h>
-#include <linux/string.h>	/* for memset */
-#include <linux/nls.h>
-#include <linux/crc-itu-t.h>
-#include <linux/slab.h>
-
-#include "udf_sb.h"
-
-static int udf_translate_to_linux(uint8_t *, uint8_t *, int, uint8_t *, int);
-
-static int udf_char_to_ustr(struct ustr *dest, const uint8_t *src, int strlen)
-{
-	if ((!dest) || (!src) || (!strlen) || (strlen > UDF_NAME_LEN - 2))
-		return 0;
-
-	memset(dest, 0, sizeof(struct ustr));
-	memcpy(dest->u_name, src, strlen);
-	dest->u_cmpID = 0x08;
-	dest->u_len = strlen;
-
-	return strlen;
-}
-
-/*
- * udf_build_ustr
- */
-int udf_build_ustr(struct ustr *dest, dstring *ptr, int size)
-{
-	int usesize;
-
-	if (!dest || !ptr || !size)
-		return -1;
-	BUG_ON(size < 2);
-
-	usesize = min_t(size_t, ptr[size - 1], sizeof(dest->u_name));
-	usesize = min(usesize, size - 2);
-	dest->u_cmpID = ptr[0];
-	dest->u_len = usesize;
-	memcpy(dest->u_name, ptr + 1, usesize);
-	memset(dest->u_name + usesize, 0, sizeof(dest->u_name) - usesize);
-
-	return 0;
-}
-
-/*
- * udf_build_ustr_exact
- */
-static int udf_build_ustr_exact(struct ustr *dest, dstring *ptr, int exactsize)
-{
-	if ((!dest) || (!ptr) || (!exactsize))
-		return -1;
-
-	memset(dest, 0, sizeof(struct ustr));
-	dest->u_cmpID = ptr[0];
-	dest->u_len = exactsize - 1;
-	memcpy(dest->u_name, ptr + 1, exactsize - 1);
-
-	return 0;
-}
-
-/*
- * udf_ocu_to_utf8
- *
- * PURPOSE
- *	Convert OSTA Compressed Unicode to the UTF-8 equivalent.
- *
- * PRE-CONDITIONS
- *	utf			Pointer to UTF-8 output buffer.
- *	ocu			Pointer to OSTA Compressed Unicode input buffer
- *				of size UDF_NAME_LEN bytes.
- * 				both of type "struct ustr *"
- *
- * POST-CONDITIONS
- *	<return>		Zero on success.
- *
- * HISTORY
- *	November 12, 1997 - Andrew E. Mileski
- *	Written, tested, and released.
- */
-int udf_CS0toUTF8(struct ustr *utf_o, const struct ustr *ocu_i)
-{
-	const uint8_t *ocu;
-	uint8_t cmp_id, ocu_len;
-	int i;
-
-	ocu_len = ocu_i->u_len;
-	if (ocu_len == 0) {
-		memset(utf_o, 0, sizeof(struct ustr));
-		return 0;
-	}
-
-	cmp_id = ocu_i->u_cmpID;
-	if (cmp_id != 8 && cmp_id != 16) {
-		memset(utf_o, 0, sizeof(struct ustr));
-		pr_err("unknown compression code (%d) stri=%s\n",
-		       cmp_id, ocu_i->u_name);
-		return 0;
-	}
-
-	ocu = ocu_i->u_name;
-	utf_o->u_len = 0;
-	for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN - 3));) {
-
-		/* Expand OSTA compressed Unicode to Unicode */
-		uint32_t c = ocu[i++];
-		if (cmp_id == 16)
-			c = (c << 8) | ocu[i++];
-
-		/* Compress Unicode to UTF-8 */
-		if (c < 0x80U)
-			utf_o->u_name[utf_o->u_len++] = (uint8_t)c;
-		else if (c < 0x800U) {
-			utf_o->u_name[utf_o->u_len++] =
-						(uint8_t)(0xc0 | (c >> 6));
-			utf_o->u_name[utf_o->u_len++] =
-						(uint8_t)(0x80 | (c & 0x3f));
-		} else {
-			utf_o->u_name[utf_o->u_len++] =
-						(uint8_t)(0xe0 | (c >> 12));
-			utf_o->u_name[utf_o->u_len++] =
-						(uint8_t)(0x80 |
-							  ((c >> 6) & 0x3f));
-			utf_o->u_name[utf_o->u_len++] =
-						(uint8_t)(0x80 | (c & 0x3f));
-		}
-	}
-	utf_o->u_cmpID = 8;
-
-	return utf_o->u_len;
-}
-
-/*
- *
- * udf_utf8_to_ocu
- *
- * PURPOSE
- *	Convert UTF-8 to the OSTA Compressed Unicode equivalent.
- *
- * DESCRIPTION
- *	This routine is only called by udf_lookup().
- *
- * PRE-CONDITIONS
- *	ocu			Pointer to OSTA Compressed Unicode output
- *				buffer of size UDF_NAME_LEN bytes.
- *	utf			Pointer to UTF-8 input buffer.
- *	utf_len			Length of UTF-8 input buffer in bytes.
- *
- * POST-CONDITIONS
- *	<return>		Zero on success.
- *
- * HISTORY
- *	November 12, 1997 - Andrew E. Mileski
- *	Written, tested, and released.
- */
-static int udf_UTF8toCS0(dstring *ocu, struct ustr *utf, int length)
-{
-	unsigned c, i, max_val, utf_char;
-	int utf_cnt, u_len;
-
-	memset(ocu, 0, sizeof(dstring) * length);
-	ocu[0] = 8;
-	max_val = 0xffU;
-
-try_again:
-	u_len = 0U;
-	utf_char = 0U;
-	utf_cnt = 0U;
-	for (i = 0U; i < utf->u_len; i++) {
-		c = (uint8_t)utf->u_name[i];
-
-		/* Complete a multi-byte UTF-8 character */
-		if (utf_cnt) {
-			utf_char = (utf_char << 6) | (c & 0x3fU);
-			if (--utf_cnt)
-				continue;
-		} else {
-			/* Check for a multi-byte UTF-8 character */
-			if (c & 0x80U) {
-				/* Start a multi-byte UTF-8 character */
-				if ((c & 0xe0U) == 0xc0U) {
-					utf_char = c & 0x1fU;
-					utf_cnt = 1;
-				} else if ((c & 0xf0U) == 0xe0U) {
-					utf_char = c & 0x0fU;
-					utf_cnt = 2;
-				} else if ((c & 0xf8U) == 0xf0U) {
-					utf_char = c & 0x07U;
-					utf_cnt = 3;
-				} else if ((c & 0xfcU) == 0xf8U) {
-					utf_char = c & 0x03U;
-					utf_cnt = 4;
-				} else if ((c & 0xfeU) == 0xfcU) {
-					utf_char = c & 0x01U;
-					utf_cnt = 5;
-				} else {
-					goto error_out;
-				}
-				continue;
-			} else {
-				/* Single byte UTF-8 character (most common) */
-				utf_char = c;
-			}
-		}
-
-		/* Choose no compression if necessary */
-		if (utf_char > max_val) {
-			if (max_val == 0xffU) {
-				max_val = 0xffffU;
-				ocu[0] = (uint8_t)0x10U;
-				goto try_again;
-			}
-			goto error_out;
-		}
-
-		if (max_val == 0xffffU)
-			ocu[++u_len] = (uint8_t)(utf_char >> 8);
-		ocu[++u_len] = (uint8_t)(utf_char & 0xffU);
-	}
-
-	if (utf_cnt) {
-error_out:
-		ocu[++u_len] = '?';
-		printk(KERN_DEBUG pr_fmt("bad UTF-8 character\n"));
-	}
-
-	ocu[length - 1] = (uint8_t)u_len + 1;
-
-	return u_len + 1;
-}
-
-static int udf_CS0toNLS(struct nls_table *nls, struct ustr *utf_o,
-			const struct ustr *ocu_i)
-{
-	const uint8_t *ocu;
-	uint8_t cmp_id, ocu_len;
-	int i, len;
-
-
-	ocu_len = ocu_i->u_len;
-	if (ocu_len == 0) {
-		memset(utf_o, 0, sizeof(struct ustr));
-		return 0;
-	}
-
-	cmp_id = ocu_i->u_cmpID;
-	if (cmp_id != 8 && cmp_id != 16) {
-		memset(utf_o, 0, sizeof(struct ustr));
-		pr_err("unknown compression code (%d) stri=%s\n",
-		       cmp_id, ocu_i->u_name);
-		return 0;
-	}
-
-	ocu = ocu_i->u_name;
-	utf_o->u_len = 0;
-	for (i = 0; (i < ocu_len) && (utf_o->u_len <= (UDF_NAME_LEN - 3));) {
-		/* Expand OSTA compressed Unicode to Unicode */
-		uint32_t c = ocu[i++];
-		if (cmp_id == 16)
-			c = (c << 8) | ocu[i++];
-
-		len = nls->uni2char(c, &utf_o->u_name[utf_o->u_len],
-				    UDF_NAME_LEN - utf_o->u_len);
-		/* Valid character? */
-		if (len >= 0)
-			utf_o->u_len += len;
-		else
-			utf_o->u_name[utf_o->u_len++] = '?';
-	}
-	utf_o->u_cmpID = 8;
-
-	return utf_o->u_len;
-}
-
-static int udf_NLStoCS0(struct nls_table *nls, dstring *ocu, struct ustr *uni,
-			int length)
-{
-	int len;
-	unsigned i, max_val;
-	uint16_t uni_char;
-	int u_len;
-
-	memset(ocu, 0, sizeof(dstring) * length);
-	ocu[0] = 8;
-	max_val = 0xffU;
-
-try_again:
-	u_len = 0U;
-	for (i = 0U; i < uni->u_len; i++) {
-		len = nls->char2uni(&uni->u_name[i], uni->u_len - i, &uni_char);
-		if (!len)
-			continue;
-		/* Invalid character, deal with it */
-		if (len < 0) {
-			len = 1;
-			uni_char = '?';
-		}
-
-		if (uni_char > max_val) {
-			max_val = 0xffffU;
-			ocu[0] = (uint8_t)0x10U;
-			goto try_again;
-		}
-
-		if (max_val == 0xffffU)
-			ocu[++u_len] = (uint8_t)(uni_char >> 8);
-		ocu[++u_len] = (uint8_t)(uni_char & 0xffU);
-		i += len - 1;
-	}
-
-	ocu[length - 1] = (uint8_t)u_len + 1;
-	return u_len + 1;
-}
-
-int udf_get_filename(struct super_block *sb, uint8_t *sname, uint8_t *dname,
-		     int flen)
-{
-	struct ustr *filename, *unifilename;
-	int len = 0;
-
-	filename = kmalloc(sizeof(struct ustr), GFP_NOFS);
-	if (!filename)
-		return 0;
-
-	unifilename = kmalloc(sizeof(struct ustr), GFP_NOFS);
-	if (!unifilename)
-		goto out1;
-
-	if (udf_build_ustr_exact(unifilename, sname, flen))
-		goto out2;
-
-	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
-		if (!udf_CS0toUTF8(filename, unifilename)) {
-			udf_debug("Failed in udf_get_filename: sname = %s\n",
-				  sname);
-			goto out2;
-		}
-	} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {
-		if (!udf_CS0toNLS(UDF_SB(sb)->s_nls_map, filename,
-				  unifilename)) {
-			udf_debug("Failed in udf_get_filename: sname = %s\n",
-				  sname);
-			goto out2;
-		}
-	} else
-		goto out2;
-
-	len = udf_translate_to_linux(dname, filename->u_name, filename->u_len,
-				     unifilename->u_name, unifilename->u_len);
-out2:
-	kfree(unifilename);
-out1:
-	kfree(filename);
-	return len;
-}
-
-int udf_put_filename(struct super_block *sb, const uint8_t *sname,
-		     uint8_t *dname, int flen)
-{
-	struct ustr unifilename;
-	int namelen;
-
-	if (!udf_char_to_ustr(&unifilename, sname, flen))
-		return 0;
-
-	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {
-		namelen = udf_UTF8toCS0(dname, &unifilename, UDF_NAME_LEN);
-		if (!namelen)
-			return 0;
-	} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {
-		namelen = udf_NLStoCS0(UDF_SB(sb)->s_nls_map, dname,
-					&unifilename, UDF_NAME_LEN);
-		if (!namelen)
-			return 0;
-	} else
-		return 0;
-
-	return namelen;
-}
-
-#define ILLEGAL_CHAR_MARK	'_'
-#define EXT_MARK		'.'
-#define CRC_MARK		'#'
-#define EXT_SIZE 		5
-
-static int udf_translate_to_linux(uint8_t *newName, uint8_t *udfName,
-				  int udfLen, uint8_t *fidName,
-				  int fidNameLen)
-{
-	int index, newIndex = 0, needsCRC = 0;
-	int extIndex = 0, newExtIndex = 0, hasExt = 0;
-	unsigned short valueCRC;
-	uint8_t curr;
-	const uint8_t hexChar[] = "0123456789ABCDEF";
-
-	if (udfName[0] == '.' &&
-	    (udfLen == 1 || (udfLen == 2 && udfName[1] == '.'))) {
-		needsCRC = 1;
-		newIndex = udfLen;
-		memcpy(newName, udfName, udfLen);
-	} else {
-		for (index = 0; index < udfLen; index++) {
-			curr = udfName[index];
-			if (curr == '/' || curr == 0) {
-				needsCRC = 1;
-				curr = ILLEGAL_CHAR_MARK;
-				while (index + 1 < udfLen &&
-						(udfName[index + 1] == '/' ||
-						 udfName[index + 1] == 0))
-					index++;
-			}
-			if (curr == EXT_MARK &&
-					(udfLen - index - 1) <= EXT_SIZE) {
-				if (udfLen == index + 1)
-					hasExt = 0;
-				else {
-					hasExt = 1;
-					extIndex = index;
-					newExtIndex = newIndex;
-				}
-			}
-			if (newIndex < 256)
-				newName[newIndex++] = curr;
-			else
-				needsCRC = 1;
-		}
-	}
-	if (needsCRC) {
-		uint8_t ext[EXT_SIZE];
-		int localExtIndex = 0;
-
-		if (hasExt) {
-			int maxFilenameLen;
-			for (index = 0;
-			     index < EXT_SIZE && extIndex + index + 1 < udfLen;
-			     index++) {
-				curr = udfName[extIndex + index + 1];
-
-				if (curr == '/' || curr == 0) {
-					needsCRC = 1;
-					curr = ILLEGAL_CHAR_MARK;
-					while (extIndex + index + 2 < udfLen &&
-					      (index + 1 < EXT_SIZE &&
-						(udfName[extIndex + index + 2] == '/' ||
-						 udfName[extIndex + index + 2] == 0)))
-						index++;
-				}
-				ext[localExtIndex++] = curr;
-			}
-			maxFilenameLen = 250 - localExtIndex;
-			if (newIndex > maxFilenameLen)
-				newIndex = maxFilenameLen;
-			else
-				newIndex = newExtIndex;
-		} else if (newIndex > 250)
-			newIndex = 250;
-		newName[newIndex++] = CRC_MARK;
-		valueCRC = crc_itu_t(0, fidName, fidNameLen);
-		newName[newIndex++] = hexChar[(valueCRC & 0xf000) >> 12];
-		newName[newIndex++] = hexChar[(valueCRC & 0x0f00) >> 8];
-		newName[newIndex++] = hexChar[(valueCRC & 0x00f0) >> 4];
-		newName[newIndex++] = hexChar[(valueCRC & 0x000f)];
-
-		if (hasExt) {
-			newName[newIndex++] = EXT_MARK;
-			for (index = 0; index < localExtIndex; index++)
-				newName[newIndex++] = ext[index];
-		}
-	}
-
-	return newIndex;
-}