| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* | |||
| 2 | * linux/fs/isofs/joliet.c | |||
| 3 | * | |||
| 4 | * (C) 1996 Gordon Chaffee | |||
| 5 | * | |||
| 6 | * Joliet: Microsoft's Unicode extensions to iso9660 | |||
| 7 | */ | |||
| 8 | ||||
| 9 | #include <linux/types.h> | |||
| 10 | #include <linux/nls.h> | |||
| 11 | #include "isofs.h" | |||
| 12 | ||||
| 13 | /* | |||
| 14 | * Convert Unicode 16 to UTF8 or ASCII. | |||
| 15 | */ | |||
| 16 | static int | |||
| 0 | 0 | - | 17 | uni16_to_x8(unsigned char *ascii, u16 *uni, int len, struct nls_table *nls) |
| 18 | { | |||
| 19 | wchar_t *ip, ch; | |||
| 20 | unsigned char *op; | |||
| 21 | ||||
| 22 | ip = uni; | |||
| 23 | op = ascii; | |||
| 24 | ||||
| 0 | 0 | - | 25 | while ((ch = get_unaligned(ip)) && len) { |
| 0 | - | 25 | (T) && T | |
| 0 | - | 25 | (T) && F | |
| 0 | - | 25 | (F) && _ | |
| 26 | int llen; | |||
| 27 | ch = be16_to_cpu(ch); | |||
| 0 | 0 | - | 27 | ternary-?: __builtin_constant_p ( ( __u16 ) .. |
| 0 | 0 | - | 28 | if ((llen = nls->uni2char(ch, op, NLS_MAX_CHARSET_SIZE)) > 0) |
| 29 | op += llen; | |||
| 30 | else | |||
| 31 | *op++ = '?'; | |||
| 32 | ip++; | |||
| 33 | ||||
| 34 | len--; | |||
| 35 | } | |||
| 36 | *op = 0; | |||
| 0 | - | 37 | return (op - ascii); | |
| 38 | } | |||
| 39 | ||||
| 40 | /* Convert big endian wide character string to utf8 */ | |||
| 41 | static int | |||
| 0 | 0 | - | 42 | wcsntombs_be(__u8 *s, const __u8 *pwcs, int inlen, int maxlen) |
| 43 | { | |||
| 44 | const __u8 *ip; | |||
| 45 | __u8 *op; | |||
| 46 | int size; | |||
| 47 | __u16 c; | |||
| 48 | ||||
| 49 | op = s; | |||
| 50 | ip = pwcs; | |||
| 0 | 0 | - | 51 | while ((*ip || ip[1]) && (maxlen > 0) && (inlen > 0)) { |
| 0 | - | 51 | (T || _) && (T) && (T) | |
| 0 | - | 51 | (F || T) && (T) && (T) | |
| 0 | - | 51 | (T || _) && (T) && (F) | |
| 0 | - | 51 | (T || _) && (F) && (_) | |
| 0 | - | 51 | (F || T) && (T) && (F) | |
| 0 | - | 51 | (F || T) && (F) && (_) | |
| 0 | - | 51 | (F || F) && (_) && (_) | |
| 52 | c = (*ip << 8) | ip[1]; | |||
| 0 | 0 | - | 53 | if (c > 0x7f) { |
| 54 | size = utf8_wctomb(op, c, maxlen); | |||
| 0 | 0 | - | 55 | if (size == -1) { |
| 56 | /* Ignore character and move on */ | |||
| 57 | maxlen--; | |||
| 58 | } else { | |||
| 59 | op += size; | |||
| 60 | maxlen -= size; | |||
| 61 | } | |||
| 62 | } else { | |||
| 63 | *op++ = (__u8) c; | |||
| 64 | } | |||
| 65 | ip += 2; | |||
| 66 | inlen--; | |||
| 67 | } | |||
| 0 | - | 68 | return (op - s); | |
| 69 | } | |||
| 70 | ||||
| 71 | int | |||
| 0 | 0 | - | 72 | get_joliet_filename(struct iso_directory_record * de, unsigned char *outname, struct inode * inode) |
| 73 | { | |||
| 74 | unsigned char utf8; | |||
| 75 | struct nls_table *nls; | |||
| 76 | unsigned char len = 0; | |||
| 77 | ||||
| 78 | utf8 = ISOFS_SB(inode->i_sb)->s_utf8; | |||
| 79 | nls = ISOFS_SB(inode->i_sb)->s_nls_iocharset; | |||
| 80 | ||||
| 0 | 0 | - | 81 | if (utf8) { |
| 82 | len = wcsntombs_be(outname, de->name, | |||
| 83 | de->name_len[0] >> 1, PAGE_SIZE); | |||
| 84 | } else { | |||
| 85 | len = uni16_to_x8(outname, (u16 *) de->name, | |||
| 86 | de->name_len[0] >> 1, nls); | |||
| 87 | } | |||
| 0 | 0 | - | 88 | if ((len > 2) && (outname[len-2] == ';') && (outname[len-1] == '1')) { |
| 0 | - | 88 | (T) && (T) && (T) | |
| 0 | - | 88 | (T) && (T) && (F) | |
| 0 | - | 88 | (T) && (F) && (_) | |
| 0 | - | 88 | (F) && (_) && (_) | |
| 89 | len -= 2; | |||
| 90 | } | |||
| 91 | ||||
| 92 | /* | |||
| 93 | * Windows doesn't like periods at the end of a name, | |||
| 94 | * so neither do we | |||
| 95 | */ | |||
| 0 | 0 | - | 96 | while (len >= 2 && (outname[len-1] == '.')) { |
| 0 | - | 96 | T && (T) | |
| 0 | - | 96 | T && (F) | |
| 0 | - | 96 | F && (_) | |
| 97 | len--; | |||
| 98 | } | |||
| 99 | ||||
| 0 | - | 100 | return len; | |
| 101 | } | |||
| ***TER 0% (0/41) of SOURCE FILE joliet.c | ||||