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wipe unused space seems to work 

(Logical change 1.202)
edge.strict_endians
flatcap.org!ntfs 2003-10-12 12:45:23 +00:00
parent a241416f44
commit 5420628b1d
1 changed files with 82 additions and 24 deletions
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106
ntfsprogs/ntfswipe.c
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@ -55,8 +55,7 @@ void version (void)
{
printf ("\n%s v%s - Overwrite the unused space on an NTFS Volume.\n\n",
EXEC_NAME, VERSION);
printf ("Copyright (c)\n");
printf (" 2002-2003 Richard Russon\n");
printf ("Copyright (c) 2002-2003 Richard Russon\n");
printf ("\n%s\n%s%s\n", ntfs_gpl, ntfs_bugs, ntfs_home);
}
@ -351,13 +350,47 @@ int parse_options (int argc, char *argv[])
* Return: 1 Success, the clusters were wiped
* 0 Error, something went wrong
*/
int wipe_unused (ntfs_volume *vol, int byte, enum action act)
s64 wipe_unused (ntfs_volume *vol, int byte, enum action act)
{
u64 i;
u64 total = 0;
u64 result = 0;
u8 *buffer = NULL;
if (!vol || (byte < 0))
return 0;
return -1;
if (act != act_info) {
buffer = malloc (vol->cluster_size);
if (!buffer) {
Eprintf ("malloc failed\n");
return -1;
}
memset (buffer, byte, vol->cluster_size);
}
for (i = 0; i < vol->nr_clusters; i++) {
if (utils_cluster_in_use (vol, i)) {
//Vprintf ("cluster %lld is in use\n", i);
continue;
}
if (act != act_wipe) {
//Vprintf ("cluster %lld is not in use\n", i);
result = ntfs_pwrite (vol->dev, vol->cluster_size * i, vol->cluster_size, buffer);
if (result != vol->cluster_size) {
Eprintf ("write failed\n");
goto free;
}
}
total += vol->cluster_size;
}
Qprintf ("wipe_unused 0x%02x\n", byte);
return 1;
free:
free (buffer);
return total;
}
/**
@ -371,13 +404,13 @@ int wipe_unused (ntfs_volume *vol, int byte, enum action act)
* Return: 1 Success, the clusters were wiped
* 0 Error, something went wrong
*/
int wipe_tails (ntfs_volume *vol, int byte, enum action act)
s64 wipe_tails (ntfs_volume *vol, int byte, enum action act)
{
if (!vol || (byte < 0))
return 0;
return -1;
Qprintf ("wipe_tails 0x%02x\n", byte);
return 1;
Qprintf ("wipe_tails (not implemented) 0x%02x\n", byte);
return 0;
}
/**
@ -391,13 +424,36 @@ int wipe_tails (ntfs_volume *vol, int byte, enum action act)
* Return: 1 Success, the clusters were wiped
* 0 Error, something went wrong
*/
int wipe_mft (ntfs_volume *vol, int byte, enum action act)
s64 wipe_mft (ntfs_volume *vol, int byte, enum action act)
{
u64 i;
u64 total = 0;
u8 *buffer = NULL;
if (!vol || (byte < 0))
return 0;
return -1;
if (act == wipe) {
buffer = malloc (vol->mft_record_size);
if (!buffer) {
Eprintf ("malloc failed\n");
return -1;
}
}
for (i = 0; i < vol->nr_mft_records; i++) {
if (utils_mftrec_in_use (vol, i)) {
total += 300; // some token amount?
} else {
if (act == act_info) {
total += vol->mft_record_size;
continue;
}
}
}
Qprintf ("wipe_mft 0x%02x\n", byte);
return 1;
return total;
}
/**
@ -411,13 +467,13 @@ int wipe_mft (ntfs_volume *vol, int byte, enum action act)
* Return: 1 Success, the clusters were wiped
* 0 Error, something went wrong
*/
int wipe_directory (ntfs_volume *vol, int byte, enum action act)
s64 wipe_directory (ntfs_volume *vol, int byte, enum action act)
{
if (!vol || (byte < 0))
return 0;
return -1;
Qprintf ("wipe_directory 0x%02x\n", byte);
return 1;
Qprintf ("wipe_directory (not implemented) 0x%02x\n", byte);
return 0;
}
/**
@ -431,13 +487,13 @@ int wipe_directory (ntfs_volume *vol, int byte, enum action act)
* Return: 1 Success, the clusters were wiped
* 0 Error, something went wrong
*/
int wipe_logfile (ntfs_volume *vol, int byte, enum action act)
s64 wipe_logfile (ntfs_volume *vol, int byte, enum action act)
{
if (!vol || (byte < 0))
return 0;
return -1;
Qprintf ("wipe_logfile 0x%02x\n", byte);
return 1;
Qprintf ("wipe_logfile (not implemented) 0x%02x\n", byte);
return 0;
}
/**
@ -451,13 +507,13 @@ int wipe_logfile (ntfs_volume *vol, int byte, enum action act)
* Return: 1 Success, the clusters were wiped
* 0 Error, something went wrong
*/
int wipe_pagefile (ntfs_volume *vol, int byte, enum action act)
s64 wipe_pagefile (ntfs_volume *vol, int byte, enum action act)
{
if (!vol || (byte < 0))
return 0;
return -1;
Qprintf ("wipe_pagefile 0x%02x\n", byte);
return 1;
Qprintf ("wipe_pagefile (not implemented) 0x%02x\n", byte);
return 0;
}
@ -805,6 +861,8 @@ int main (int argc, char *argv[])
if (act == act_info)
break;
}
printf ("%llu bytes were wiped\n", total);
}
result = 0;