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Commit d504adc2 authored by Jan Kara's avatar Jan Kara
Browse files

udf: Push sb argument to udf_name_[to|from]_CS0() 



Push superblock argument to udf_name_[to|from]_CS0() functions so that
we can decide about character conversion functions there.

Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent e966fc8d

fs/udf/unicode.c

+24 −33
Original line number Diff line number Diff line
@@ -129,9 +129,9 @@ static int udf_name_conv_char(uint8_t *str_o, int str_o_max_len, 
	return gotch;

}



static int udf_name_from_CS0(uint8_t *str_o, int str_max_len,

static int udf_name_from_CS0(struct super_block *sb,

			     uint8_t *str_o, int str_max_len,

			     const uint8_t *ocu, int ocu_len,

			     int (*conv_f)(wchar_t, unsigned char *, int),

			     int translate)

{

	uint32_t c;
@@ -148,6 +148,7 @@ static int udf_name_from_CS0(uint8_t *str_o, int str_max_len, 
	unsigned short valueCRC;

	uint8_t ext[EXT_SIZE * NLS_MAX_CHARSET_SIZE + 1];

	uint8_t crc[CRC_LEN];

	int (*conv_f)(wchar_t, unsigned char *, int);



	if (str_max_len <= 0)

		return 0;
@@ -157,6 +158,13 @@ static int udf_name_from_CS0(uint8_t *str_o, int str_max_len, 
		return 0;

	}



	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {

		conv_f = udf_uni2char_utf8;

	} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {

		conv_f = UDF_SB(sb)->s_nls_map->uni2char;

	} else

		BUG();



	cmp_id = ocu[0];

	if (cmp_id != 8 && cmp_id != 16) {

		memset(str_o, 0, str_max_len);
@@ -247,18 +255,26 @@ static int udf_name_from_CS0(uint8_t *str_o, int str_max_len, 
	return str_o_len;

}



static int udf_name_to_CS0(uint8_t *ocu, int ocu_max_len,

			   const uint8_t *str_i, int str_len,

			   int (*conv_f)(const unsigned char *, int, wchar_t *))

static int udf_name_to_CS0(struct super_block *sb,

			   uint8_t *ocu, int ocu_max_len,

			   const uint8_t *str_i, int str_len)

{

	int i, len;

	unsigned int max_val;

	wchar_t uni_char;

	int u_len, u_ch;

	int (*conv_f)(const unsigned char *, int, wchar_t *);



	if (ocu_max_len <= 0)

		return 0;



	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {

		conv_f = udf_char2uni_utf8;

	} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {

		conv_f = UDF_SB(sb)->s_nls_map->char2uni;

	} else

		BUG();



	memset(ocu, 0, ocu_max_len);

	ocu[0] = 8;

	max_val = 0xff;
@@ -298,7 +314,6 @@ static int udf_name_to_CS0(uint8_t *ocu, int ocu_max_len, 
int udf_dstrCS0toChar(struct super_block *sb, uint8_t *utf_o, int o_len,

		      const uint8_t *ocu_i, int i_len)

{

	int (*conv_f)(wchar_t, unsigned char *, int);

	int s_len = 0;



	if (i_len > 0) {
@@ -310,20 +325,12 @@ int udf_dstrCS0toChar(struct super_block *sb, uint8_t *utf_o, int o_len, 
		}

	}



	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {

		conv_f = udf_uni2char_utf8;

	} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {

		conv_f = UDF_SB(sb)->s_nls_map->uni2char;

	} else

		BUG();



	return udf_name_from_CS0(utf_o, o_len, ocu_i, s_len, conv_f, 0);

	return udf_name_from_CS0(sb, utf_o, o_len, ocu_i, s_len, 0);

}



int udf_get_filename(struct super_block *sb, const uint8_t *sname, int slen,

		     uint8_t *dname, int dlen)

{

	int (*conv_f)(wchar_t, unsigned char *, int);

	int ret;



	if (!slen)
@@ -332,14 +339,7 @@ int udf_get_filename(struct super_block *sb, const uint8_t *sname, int slen, 
	if (dlen <= 0)

		return 0;



	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {

		conv_f = udf_uni2char_utf8;

	} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {

		conv_f = UDF_SB(sb)->s_nls_map->uni2char;

	} else

		BUG();



	ret = udf_name_from_CS0(dname, dlen, sname, slen, conv_f, 1);

	ret = udf_name_from_CS0(sb, dname, dlen, sname, slen, 1);

	/* Zero length filename isn't valid... */

	if (ret == 0)

		ret = -EINVAL;
@@ -349,15 +349,6 @@ int udf_get_filename(struct super_block *sb, const uint8_t *sname, int slen, 
int udf_put_filename(struct super_block *sb, const uint8_t *sname, int slen,

		     uint8_t *dname, int dlen)

{

	int (*conv_f)(const unsigned char *, int, wchar_t *);



	if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8)) {

		conv_f = udf_char2uni_utf8;

	} else if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP)) {

		conv_f = UDF_SB(sb)->s_nls_map->char2uni;

	} else

		BUG();



	return udf_name_to_CS0(dname, dlen, sname, slen, conv_f);

	return udf_name_to_CS0(sb, dname, dlen, sname, slen);

}