/* * linux/fs/isofs/joliet.c * * (C) 1996 Gordon Chaffee * * Joliet: Microsoft's Unicode extensions to iso9660 */ #include #include #include "isofs.h" /* * Convert Unicode 16 to UTF-8 or ASCII. */ static int uni16_to_x8(unsigned char *ascii, __be16 *uni, int len, struct nls_table *nls) { __be16 *ip, ch; unsigned char *op; ip = uni; op = ascii; while ((ch = get_unaligned(ip)) && len) { int llen; llen = nls->uni2char(be16_to_cpu(ch), op, NLS_MAX_CHARSET_SIZE); if (llen > 0) op += llen; else *op++ = '?'; ip++; len--; } *op = 0; return (op - ascii); } int get_joliet_filename(struct iso_directory_record * de, unsigned char *outname, struct inode * inode) { unsigned char utf8; struct nls_table *nls; unsigned char len = 0; utf8 = ISOFS_SB(inode->i_sb)->s_utf8; nls = ISOFS_SB(inode->i_sb)->s_nls_iocharset; if (utf8) { len = utf16s_to_utf8s((const wchar_t *) de->name, de->name_len[0] >> 1, UTF16_BIG_ENDIAN, outname, PAGE_SIZE); } else { len = uni16_to_x8(outname, (__be16 *) de->name, de->name_len[0] >> 1, nls); } if ((len > 2) && (outname[len-2] == ';') && (outname[len-1] == '1')) len -= 2; /* * Windows doesn't like periods at the end of a name, * so neither do we */ while (len >= 2 && (outname[len-1] == '.')) len--; return len; } net-next plumbingsTobias Klauser

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