diff options
Diffstat (limited to 'drivers/staging/exfat/exfat_nls.c')
-rw-r--r-- | drivers/staging/exfat/exfat_nls.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/drivers/staging/exfat/exfat_nls.c b/drivers/staging/exfat/exfat_nls.c index a5c4b68925fb..91e8b0c4dce7 100644 --- a/drivers/staging/exfat/exfat_nls.c +++ b/drivers/staging/exfat/exfat_nls.c @@ -7,13 +7,6 @@ #include <linux/nls.h> #include "exfat.h" -static u16 bad_dos_chars[] = { - /* + , ; = [ ] */ - 0x002B, 0x002C, 0x003B, 0x003D, 0x005B, 0x005D, - 0xFF0B, 0xFF0C, 0xFF1B, 0xFF1D, 0xFF3B, 0xFF3D, - 0 -}; - static u16 bad_uni_chars[] = { /* " * / : < > ? \ | */ 0x0022, 0x002A, 0x002F, 0x003A, @@ -96,11 +89,6 @@ static u16 *nls_wstrchr(u16 *str, u16 wchar) return NULL; } -int nls_dosname_cmp(struct super_block *sb, u8 *a, u8 *b) -{ - return strncmp(a, b, DOS_NAME_LENGTH); -} - int nls_uniname_cmp(struct super_block *sb, u16 *a, u16 *b) { int i; @@ -114,186 +102,6 @@ int nls_uniname_cmp(struct super_block *sb, u16 *a, u16 *b) return 0; } -void nls_uniname_to_dosname(struct super_block *sb, - struct dos_name_t *p_dosname, - struct uni_name_t *p_uniname, bool *p_lossy) -{ - int i, j, len; - bool lossy = false; - u8 buf[MAX_CHARSET_SIZE]; - u8 lower = 0, upper = 0; - u8 *dosname = p_dosname->name; - u16 *uniname = p_uniname->name; - u16 *p, *last_period; - struct nls_table *nls = EXFAT_SB(sb)->nls_disk; - - for (i = 0; i < DOS_NAME_LENGTH; i++) - *(dosname + i) = ' '; - - if (!nls_uniname_cmp(sb, uniname, (u16 *)UNI_CUR_DIR_NAME)) { - *(dosname) = '.'; - p_dosname->name_case = 0x0; - if (p_lossy) - *p_lossy = false; - return; - } - - if (!nls_uniname_cmp(sb, uniname, (u16 *)UNI_PAR_DIR_NAME)) { - *(dosname) = '.'; - *(dosname + 1) = '.'; - p_dosname->name_case = 0x0; - if (p_lossy) - *p_lossy = false; - return; - } - - /* search for the last embedded period */ - last_period = NULL; - for (p = uniname; *p; p++) { - if (*p == (u16)'.') - last_period = p; - } - - i = 0; - while (i < DOS_NAME_LENGTH) { - if (i == 8) { - if (!last_period) - break; - - if (uniname <= last_period) { - if (uniname < last_period) - lossy = true; - uniname = last_period + 1; - } - } - - if (*uniname == (u16)'\0') { - break; - } else if (*uniname == (u16)' ') { - lossy = true; - } else if (*uniname == (u16)'.') { - if (uniname < last_period) - lossy = true; - else - i = 8; - } else if (nls_wstrchr(bad_dos_chars, *uniname)) { - lossy = true; - *(dosname + i) = '_'; - i++; - } else { - len = convert_uni_to_ch(nls, buf, *uniname, &lossy); - - if (len > 1) { - if ((i >= 8) && ((i + len) > DOS_NAME_LENGTH)) - break; - - if ((i < 8) && ((i + len) > 8)) { - i = 8; - continue; - } - - lower = 0xFF; - - for (j = 0; j < len; j++, i++) - *(dosname + i) = *(buf + j); - } else { /* len == 1 */ - if ((*buf >= 'a') && (*buf <= 'z')) { - *(dosname + i) = *buf - ('a' - 'A'); - - if (i < 8) - lower |= 0x08; - else - lower |= 0x10; - } else if ((*buf >= 'A') && (*buf <= 'Z')) { - *(dosname + i) = *buf; - - if (i < 8) - upper |= 0x08; - else - upper |= 0x10; - } else { - *(dosname + i) = *buf; - } - i++; - } - } - - uniname++; - } - - if (*dosname == 0xE5) - *dosname = 0x05; - - if (*uniname != 0x0) - lossy = true; - - if (upper & lower) - p_dosname->name_case = 0xFF; - else - p_dosname->name_case = lower; - - if (p_lossy) - *p_lossy = lossy; -} - -void nls_dosname_to_uniname(struct super_block *sb, - struct uni_name_t *p_uniname, - struct dos_name_t *p_dosname) -{ - int i = 0, j, n = 0; - u8 buf[DOS_NAME_LENGTH + 2]; - u8 *dosname = p_dosname->name; - u16 *uniname = p_uniname->name; - struct nls_table *nls = EXFAT_SB(sb)->nls_disk; - - if (*dosname == 0x05) { - *buf = 0xE5; - i++; - n++; - } - - for (; i < 8; i++, n++) { - if (*(dosname + i) == ' ') - break; - - if ((*(dosname + i) >= 'A') && (*(dosname + i) <= 'Z') && - (p_dosname->name_case & 0x08)) - *(buf + n) = *(dosname + i) + ('a' - 'A'); - else - *(buf + n) = *(dosname + i); - } - if (*(dosname + 8) != ' ') { - *(buf + n) = '.'; - n++; - } - - for (i = 8; i < DOS_NAME_LENGTH; i++, n++) { - if (*(dosname + i) == ' ') - break; - - if ((*(dosname + i) >= 'A') && (*(dosname + i) <= 'Z') && - (p_dosname->name_case & 0x10)) - *(buf + n) = *(dosname + i) + ('a' - 'A'); - else - *(buf + n) = *(dosname + i); - } - *(buf + n) = '\0'; - - i = 0; - j = 0; - while (j < (MAX_NAME_LENGTH - 1)) { - if (*(buf + i) == '\0') - break; - - i += convert_ch_to_uni(nls, uniname, (buf + i), NULL); - - uniname++; - j++; - } - - *uniname = (u16)'\0'; -} - void nls_uniname_to_cstring(struct super_block *sb, u8 *p_cstring, struct uni_name_t *p_uniname) { |