Add libtar to TWRP instead of using busybox tar
Add proper mkdosfs tool
Add fuse to TWRP
Add experimental exfat-fuse to TWRP
Convert all system() functions to use new Exec_Cmd function
diff --git a/exfat/libexfat/utf.c b/exfat/libexfat/utf.c
new file mode 100644
index 0000000..983c793
--- /dev/null
+++ b/exfat/libexfat/utf.c
@@ -0,0 +1,229 @@
+/*
+ utf.c (13.09.09)
+ exFAT file system implementation library.
+
+ Copyright (C) 2010-2012 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "exfat.h"
+#include <errno.h>
+
+static char* wchar_to_utf8(char* output, wchar_t wc, size_t outsize)
+{
+ if (wc <= 0x7f)
+ {
+ if (outsize < 1)
+ return NULL;
+ *output++ = (char) wc;
+ }
+ else if (wc <= 0x7ff)
+ {
+ if (outsize < 2)
+ return NULL;
+ *output++ = 0xc0 | (wc >> 6);
+ *output++ = 0x80 | (wc & 0x3f);
+ }
+ else if (wc <= 0xffff)
+ {
+ if (outsize < 3)
+ return NULL;
+ *output++ = 0xe0 | (wc >> 12);
+ *output++ = 0x80 | ((wc >> 6) & 0x3f);
+ *output++ = 0x80 | (wc & 0x3f);
+ }
+ else if (wc <= 0x1fffff)
+ {
+ if (outsize < 4)
+ return NULL;
+ *output++ = 0xf0 | (wc >> 18);
+ *output++ = 0x80 | ((wc >> 12) & 0x3f);
+ *output++ = 0x80 | ((wc >> 6) & 0x3f);
+ *output++ = 0x80 | (wc & 0x3f);
+ }
+ else if (wc <= 0x3ffffff)
+ {
+ if (outsize < 5)
+ return NULL;
+ *output++ = 0xf8 | (wc >> 24);
+ *output++ = 0x80 | ((wc >> 18) & 0x3f);
+ *output++ = 0x80 | ((wc >> 12) & 0x3f);
+ *output++ = 0x80 | ((wc >> 6) & 0x3f);
+ *output++ = 0x80 | (wc & 0x3f);
+ }
+ else if (wc <= 0x7fffffff)
+ {
+ if (outsize < 6)
+ return NULL;
+ *output++ = 0xfc | (wc >> 30);
+ *output++ = 0x80 | ((wc >> 24) & 0x3f);
+ *output++ = 0x80 | ((wc >> 18) & 0x3f);
+ *output++ = 0x80 | ((wc >> 12) & 0x3f);
+ *output++ = 0x80 | ((wc >> 6) & 0x3f);
+ *output++ = 0x80 | (wc & 0x3f);
+ }
+ else
+ return NULL;
+
+ return output;
+}
+
+static const le16_t* utf16_to_wchar(const le16_t* input, wchar_t* wc,
+ size_t insize)
+{
+ if ((le16_to_cpu(input[0]) & 0xfc00) == 0xd800)
+ {
+ if (insize < 2 || (le16_to_cpu(input[1]) & 0xfc00) != 0xdc00)
+ 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
+ {
+ *wc = le16_to_cpu(*input);
+ return input + 1;
+ }
+}
+
+int utf16_to_utf8(char* output, const le16_t* input, size_t outsize,
+ size_t insize)
+{
+ const le16_t* inp = input;
+ char* outp = output;
+ wchar_t wc;
+
+ while (inp - input < insize && le16_to_cpu(*inp))
+ {
+ inp = utf16_to_wchar(inp, &wc, insize - (inp - input));
+ if (inp == NULL)
+ {
+ exfat_error("illegal UTF-16 sequence");
+ return -EILSEQ;
+ }
+ outp = wchar_to_utf8(outp, wc, outsize - (outp - output));
+ if (outp == NULL)
+ {
+ exfat_error("name is too long");
+ return -ENAMETOOLONG;
+ }
+ }
+ *outp = '\0';
+ return 0;
+}
+
+static const char* utf8_to_wchar(const char* input, wchar_t* wc,
+ size_t insize)
+{
+ if ((input[0] & 0x80) == 0 && insize >= 1)
+ {
+ *wc = (wchar_t) input[0];
+ return input + 1;
+ }
+ if ((input[0] & 0xe0) == 0xc0 && insize >= 2)
+ {
+ *wc = (((wchar_t) input[0] & 0x1f) << 6) |
+ ((wchar_t) input[1] & 0x3f);
+ return input + 2;
+ }
+ if ((input[0] & 0xf0) == 0xe0 && insize >= 3)
+ {
+ *wc = (((wchar_t) input[0] & 0x0f) << 12) |
+ (((wchar_t) input[1] & 0x3f) << 6) |
+ ((wchar_t) input[2] & 0x3f);
+ return input + 3;
+ }
+ if ((input[0] & 0xf8) == 0xf0 && insize >= 4)
+ {
+ *wc = (((wchar_t) input[0] & 0x07) << 18) |
+ (((wchar_t) input[1] & 0x3f) << 12) |
+ (((wchar_t) input[2] & 0x3f) << 6) |
+ ((wchar_t) input[3] & 0x3f);
+ return input + 4;
+ }
+ if ((input[0] & 0xfc) == 0xf8 && insize >= 5)
+ {
+ *wc = (((wchar_t) input[0] & 0x03) << 24) |
+ (((wchar_t) input[1] & 0x3f) << 18) |
+ (((wchar_t) input[2] & 0x3f) << 12) |
+ (((wchar_t) input[3] & 0x3f) << 6) |
+ ((wchar_t) input[4] & 0x3f);
+ return input + 5;
+ }
+ if ((input[0] & 0xfe) == 0xfc && insize >= 6)
+ {
+ *wc = (((wchar_t) input[0] & 0x01) << 30) |
+ (((wchar_t) input[1] & 0x3f) << 24) |
+ (((wchar_t) input[2] & 0x3f) << 18) |
+ (((wchar_t) input[3] & 0x3f) << 12) |
+ (((wchar_t) input[4] & 0x3f) << 6) |
+ ((wchar_t) input[5] & 0x3f);
+ return input + 6;
+ }
+ return NULL;
+}
+
+static le16_t* wchar_to_utf16(le16_t* output, wchar_t wc, size_t outsize)
+{
+ if (wc <= 0xffff) /* if character is from BMP */
+ {
+ if (outsize == 0)
+ return NULL;
+ output[0] = cpu_to_le16(wc);
+ return output + 1;
+ }
+ if (outsize < 2)
+ return NULL;
+ wc -= 0x10000;
+ output[0] = cpu_to_le16(0xd800 | ((wc >> 10) & 0x3ff));
+ output[1] = cpu_to_le16(0xdc00 | (wc & 0x3ff));
+ return output + 2;
+}
+
+int utf8_to_utf16(le16_t* output, const char* input, size_t outsize,
+ size_t insize)
+{
+ const char* inp = input;
+ le16_t* outp = output;
+ wchar_t wc;
+
+ while (inp - input < insize && *inp)
+ {
+ inp = utf8_to_wchar(inp, &wc, insize - (inp - input));
+ if (inp == NULL)
+ {
+ exfat_error("illegal UTF-8 sequence");
+ return -EILSEQ;
+ }
+ outp = wchar_to_utf16(outp, wc, outsize - (outp - output));
+ if (outp == NULL)
+ {
+ exfat_error("name is too long");
+ return -ENAMETOOLONG;
+ }
+ }
+ *outp = cpu_to_le16(0);
+ return 0;
+}
+
+size_t utf16_length(const le16_t* str)
+{
+ size_t i = 0;
+
+ while (le16_to_cpu(str[i]))
+ i++;
+ return i;
+}