Blame view
fs/jfs/jfs_unicode.c
3.27 KB
1da177e4c Linux-2.6.12-rc2 |
1 2 3 4 5 |
/* * Copyright (C) International Business Machines Corp., 2000-2004 * * 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 |
63f83c9fc JFS: White space ... |
6 |
* the Free Software Foundation; either version 2 of the License, or |
1da177e4c Linux-2.6.12-rc2 |
7 |
* (at your option) any later version. |
63f83c9fc JFS: White space ... |
8 |
* |
1da177e4c Linux-2.6.12-rc2 |
9 10 11 12 13 14 |
* 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 |
63f83c9fc JFS: White space ... |
15 |
* along with this program; if not, write to the Free Software |
1da177e4c Linux-2.6.12-rc2 |
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/fs.h> #include <linux/slab.h> #include "jfs_incore.h" #include "jfs_filsys.h" #include "jfs_unicode.h" #include "jfs_debug.h" /* * NAME: jfs_strfromUCS() * * FUNCTION: Convert little-endian unicode string to character string * */ int jfs_strfromUCS_le(char *to, const __le16 * from, int len, struct nls_table *codepage) { int i; int outlen = 0; static int warn_again = 5; /* Only warn up to 5 times total */ int warn = !!warn_again; /* once per string */ if (codepage) { for (i = 0; (i < len) && from[i]; i++) { int charlen; charlen = codepage->uni2char(le16_to_cpu(from[i]), &to[outlen], NLS_MAX_CHARSET_SIZE); if (charlen > 0) outlen += charlen; else to[outlen++] = '?'; } } else { for (i = 0; (i < len) && from[i]; i++) { |
f5f287738 JFS: performance ... |
54 55 56 |
if (unlikely(le16_to_cpu(from[i]) & 0xff00)) { to[i] = '?'; if (unlikely(warn)) { |
1da177e4c Linux-2.6.12-rc2 |
57 58 59 |
warn--; warn_again--; printk(KERN_ERR |
63f83c9fc JFS: White space ... |
60 61 62 |
"non-latin1 character 0x%x found in JFS file name ", le16_to_cpu(from[i])); |
1da177e4c Linux-2.6.12-rc2 |
63 64 65 66 |
printk(KERN_ERR "mount with iocharset=utf8 to access "); } |
f5f287738 JFS: performance ... |
67 |
|
1da177e4c Linux-2.6.12-rc2 |
68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 |
} else to[i] = (char) (le16_to_cpu(from[i])); } outlen = i; } to[outlen] = 0; return outlen; } /* * NAME: jfs_strtoUCS() * * FUNCTION: Convert character string to unicode string * */ static int jfs_strtoUCS(wchar_t * to, const unsigned char *from, int len, struct nls_table *codepage) { int charlen; int i; if (codepage) { for (i = 0; len && *from; i++, from += charlen, len -= charlen) { charlen = codepage->char2uni(from, len, &to[i]); if (charlen < 1) { jfs_err("jfs_strtoUCS: char2uni returned %d.", charlen); jfs_err("charset = %s, char = 0x%x", codepage->charset, *from); return charlen; } } } else { for (i = 0; (i < len) && from[i]; i++) to[i] = (wchar_t) from[i]; } to[i] = 0; return i; } /* * NAME: get_UCSname() * * FUNCTION: Allocate and translate to unicode string * */ int get_UCSname(struct component_name * uniName, struct dentry *dentry) { struct nls_table *nls_tab = JFS_SBI(dentry->d_sb)->nls_tab; int length = dentry->d_name.len; if (length > JFS_NAME_MAX) return -ENAMETOOLONG; uniName->name = kmalloc((length + 1) * sizeof(wchar_t), GFP_NOFS); if (uniName->name == NULL) |
087387f90 [PATCH] JFS: retu... |
129 |
return -ENOMEM; |
1da177e4c Linux-2.6.12-rc2 |
130 131 132 133 134 135 136 137 138 139 140 |
uniName->namlen = jfs_strtoUCS(uniName->name, dentry->d_name.name, length, nls_tab); if (uniName->namlen < 0) { kfree(uniName->name); return uniName->namlen; } return 0; } |