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/*
Copyright (C) 2016 Scott Dwyer
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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "ddru_ntfscommon.h"
// version 1.1 20141011
// funtion to get file name
int getname(unsigned long offset)
{
// if type is resident process as such
if (ntfs_attribute.items.uchNonResFlag == 0)
{
// if no-convert then do it the old way so iconv is not used
if (no_convert == true)
{
unsigned int n;
unsigned int i;
unsigned int c = 0;
n = ntfs_attribute.items.Attr.Resident.wAttrOffset + offset;
for (i = 0; i < 576 && n < mft_record_size; i++)
{
file_attribute.raw.filenamedata[i] = mft_mft.raw.mftfile[n];
n++;
}
for (i = 0; i < (file_attribute.items.NameLength * 2); i += 2)
{
file_name[c] = isprint(file_attribute.items.Name[i]) ? file_attribute.items.Name[i] : '.';
file_name[c] = (file_name[c] != '/') ? file_name[c] : '.';
file_name[c] = (file_name[c] != '\\') ? file_name[c] : '.';
file_name[c] = (file_name[c] != '\'') ? file_name[c] : '.';
file_name[c] = (file_name[c] != '\"') ? file_name[c] : '.';
c++;
}
file_name[c] = '\0';
}
// else do proper conversion of the file name
else
{
unsigned int n;
unsigned int i;
n = ntfs_attribute.items.Attr.Resident.wAttrOffset + offset;
for (i = 0; i < 576 && n < mft_record_size; i++)
{
file_attribute.raw.filenamedata[i] = mft_mft.raw.mftfile[n];
n++;
}
memset (converted_start, 0, 1024);
memset (inchar_start, 0, 512);
converted = converted_start;
inchar = inchar_start;
size_t inlen = (file_attribute.items.NameLength * 2);
size_t outlen = 1024;
for (i = 0; i < (file_attribute.items.NameLength * 2) && i < 512; i++)
{
inchar[i] = file_attribute.items.Name[i];
}
int skipped = 0;
bool keepconverting = true;
size_t ret;
while (keepconverting)
{
ret = iconv(cd, &inchar, &inlen, &converted, &outlen);
if (ret == (size_t) -1)
{
switch (errno)
{
/* See "man 3 iconv" for an explanation. */
case EILSEQ:
if (inlen > 2)
{
inlen -= 2;
inchar += 2;
skipped ++;
}
else
keepconverting = false;
break;
case EINVAL:
fprintf (stderr, "iconv failed: inode %ld in string '%s', length %d, out string '%s', length %d -- ", inode_count, inchar, (int)inlen, converted_start, (int)outlen);
fprintf (stderr, "Incomplete multibyte sequence.\n");
keepconverting = false;
break;
case E2BIG:
fprintf (stderr, "iconv failed: inode %ld in string '%s', length %d, out string '%s', length %d -- ", inode_count, inchar, (int)inlen, converted_start, (int)outlen);
fprintf (stderr, "No more room.\n");
keepconverting = false;
break;
default:
fprintf (stderr, "iconv failed: inode %ld in string '%s', length %d, out string '%s', length %d -- ", inode_count, inchar, (int)inlen, converted_start, (int)outlen);
fprintf (stderr, "Error: %s.\n", strerror (errno));
keepconverting = false;
}
}
else
keepconverting = false;
}
if (skipped > 0)
{
fprintf (stdout, "\rInode %ld skipped %d invalid name characters out of %d: ", inode_count, skipped, file_attribute.items.NameLength);
fprintf (stdout, "'%s'\n", converted_start);
}
if ((int)ret > 0)
{
fprintf (stdout, "\rInode %ld converted %d invalid name characters out of %d: ", inode_count, (int)ret, file_attribute.items.NameLength);
fprintf (stdout, "'%s'\n", converted_start);
}
if (ret > 0 && (int)ret < 0)
{
fprintf (stdout, "\rInode %ld ignored an unknown number of name characters out of %d: ", inode_count, file_attribute.items.NameLength);
fprintf (stdout, "'%s'\n", converted_start);
}
for (i = 0; i < 1024; i++)
{
file_name[i] = converted_start[i];
}
}
file_name_type = file_attribute.items.NameType;
}
// else process as non resident
else
{
fprintf (stderr, "\r\nERROR! non resident name processing should go here, which should probably never happen\n");
fprintf (stderr, "If you see this message, please contact the author and tell him it did happen\n\n");
}
return(0);
}
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