/*
- * utf.c
- * exFAT file system implementation library.
- *
- * Created by Andrew Nayenko on 13.09.09.
- * This software is distributed under the GNU General Public License
- * version 3 or any later.
- */
+ utf.c (13.09.09)
+ exFAT file system implementation library.
+
+ Free exFAT implementation.
+ Copyright (C) 2010-2018 Andrew Nayenko
+
+ 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
+ the Free Software Foundation, either version 2 of the License, or
+ (at your option) any later version.
+
+ 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 along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
#include "exfat.h"
#include <errno.h>
return NULL;
*wc = ((wchar_t) (le16_to_cpu(input[0]) & 0x3ff) << 10);
*wc |= (le16_to_cpu(input[1]) & 0x3ff);
+ *wc += 0x10000;
return input + 2;
}
else
char* outp = output;
wchar_t wc;
- while (inp - input < insize && le16_to_cpu(*inp))
+ while (inp - input < insize)
{
inp = utf16_to_wchar(inp, &wc, insize - (inp - input));
if (inp == NULL)
exfat_error("name is too long");
return -ENAMETOOLONG;
}
+ if (wc == 0)
+ return 0;
+ }
+ if (outp - output >= outsize)
+ {
+ exfat_error("name is too long");
+ return -ENAMETOOLONG;
}
*outp = '\0';
return 0;
if (wc <= 0xffff) /* if character is from BMP */
{
if (outsize == 0)
- {
- exfat_error("name is too long");
return NULL;
- }
output[0] = cpu_to_le16(wc);
return output + 1;
}
if (outsize < 2)
- {
- exfat_error("name is too long");
return NULL;
- }
+ wc -= 0x10000;
output[0] = cpu_to_le16(0xd800 | ((wc >> 10) & 0x3ff));
output[1] = cpu_to_le16(0xdc00 | (wc & 0x3ff));
return output + 2;
le16_t* outp = output;
wchar_t wc;
- while (inp - input < insize && *inp)
+ while (inp - input < insize)
{
inp = utf8_to_wchar(inp, &wc, insize - (inp - input));
if (inp == NULL)
exfat_error("name is too long");
return -ENAMETOOLONG;
}
+ if (wc == 0)
+ break;
+ }
+ if (outp - output >= outsize)
+ {
+ exfat_error("name is too long");
+ return -ENAMETOOLONG;
}
*outp = cpu_to_le16(0);
return 0;