VeraCrypt
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authorMounir IDRASSI <mounir.idrassi@idrix.fr>2014-07-14 15:20:32 (GMT)
committerMounir IDRASSI <mounir.idrassi@idrix.fr>2014-11-08 22:21:16 (GMT)
commitba733dd032a44eb38653abe922fc6905413bcac4 (patch)
treef7173f5b947eb656c7bf1dee22c3ee291968fece
parent016edc150b034d7401a1652bd3482d613ff4b9d4 (diff)
downloadVeraCrypt-ba733dd032a44eb38653abe922fc6905413bcac4.zip
VeraCrypt-ba733dd032a44eb38653abe922fc6905413bcac4.tar.gz
Use Safe String functions in Registry.c and add a unicode version of WriteLocalMachineRegistryDword function to avoid doing conversions when used.
-rw-r--r--src/Common/Registry.c33
-rw-r--r--src/Common/Registry.h3
2 files changed, 31 insertions, 5 deletions
diff --git a/src/Common/Registry.c b/src/Common/Registry.c
index c749647..a68e5f1 100644
--- a/src/Common/Registry.c
+++ b/src/Common/Registry.c
@@ -8,6 +8,7 @@
#include "Tcdefs.h"
#include "Registry.h"
+#include <Strsafe.h>
BOOL ReadLocalMachineRegistryDword (char *subKey, char *name, DWORD *value)
{
@@ -105,13 +106,13 @@ char *ReadRegistryString (char *subKey, char *name, char *defaultValue, char *st
DWORD size = sizeof (value);
str[maxLen-1] = 0;
- strncpy (str, defaultValue, maxLen-1);
+ StringCbCopyA (str, maxLen, defaultValue);
ZeroMemory (value, sizeof value);
if (RegOpenKeyEx (HKEY_CURRENT_USER, subKey,
0, KEY_READ, &hkey) == ERROR_SUCCESS)
if (RegQueryValueEx (hkey, name, 0, 0, (LPBYTE) value, &size) == ERROR_SUCCESS)
- strncpy (str, value, maxLen-1);
+ StringCbCopyA (str, maxLen,value);
RegCloseKey (hkey);
return str;
@@ -169,6 +170,30 @@ BOOL WriteLocalMachineRegistryDword (char *subKey, char *name, DWORD value)
return TRUE;
}
+BOOL WriteLocalMachineRegistryDwordW (WCHAR *subKey, WCHAR *name, DWORD value)
+{
+ HKEY hkey = 0;
+ DWORD disp;
+ LONG status;
+
+ if ((status = RegCreateKeyExW (HKEY_LOCAL_MACHINE, subKey,
+ 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hkey, &disp)) != ERROR_SUCCESS)
+ {
+ SetLastError (status);
+ return FALSE;
+ }
+
+ if ((status = RegSetValueExW (hkey, name, 0, REG_DWORD, (BYTE *) &value, sizeof value)) != ERROR_SUCCESS)
+ {
+ RegCloseKey (hkey);
+ SetLastError (status);
+ return FALSE;
+ }
+
+ RegCloseKey (hkey);
+ return TRUE;
+}
+
BOOL WriteLocalMachineRegistryMultiString (char *subKey, char *name, char *multiString, DWORD size)
{
HKEY hkey = 0;
@@ -279,9 +304,9 @@ void DeleteRegistryValue (char *subKey, char *name)
}
-void GetStartupRegKeyName (char *regk)
+void GetStartupRegKeyName (char *regk, size_t cbRegk)
{
// The string is split in order to prevent some antivirus packages from falsely reporting
// TrueCrypt.exe to contain a possible Trojan horse because of this string (heuristic scan).
- sprintf (regk, "%s%s", "Software\\Microsoft\\Windows\\Curren", "tVersion\\Run");
+ StringCbPrintfA (regk, cbRegk,"%s%s", "Software\\Microsoft\\Windows\\Curren", "tVersion\\Run");
}
diff --git a/src/Common/Registry.h b/src/Common/Registry.h
index a0e2e73..693ddc0 100644
--- a/src/Common/Registry.h
+++ b/src/Common/Registry.h
@@ -19,13 +19,14 @@ char *ReadRegistryString (char *subKey, char *name, char *defaultValue, char *st
DWORD ReadRegistryBytes (char *path, char *name, char *value, int maxLen);
void WriteRegistryInt (char *subKey, char *name, int value);
BOOL WriteLocalMachineRegistryDword (char *subKey, char *name, DWORD value);
+BOOL WriteLocalMachineRegistryDwordW (WCHAR *subKey, WCHAR *name, DWORD value);
BOOL WriteLocalMachineRegistryMultiString (char *subKey, char *name, char *multiString, DWORD size);
BOOL WriteLocalMachineRegistryString (char *subKey, char *name, char *str, BOOL expandable);
void WriteRegistryString (char *subKey, char *name, char *str);
BOOL WriteRegistryBytes (char *path, char *name, char *str, DWORD size);
BOOL DeleteLocalMachineRegistryKey (char *parentKey, char *subKeyToDelete);
void DeleteRegistryValue (char *subKey, char *name);
-void GetStartupRegKeyName (char *regk);
+void GetStartupRegKeyName (char *regk, size_t cbRegk);
#ifdef __cplusplus
}