Use string pointer instead string buffer to avoid string copy operation.

Use CopyMem() to guarantee the NULL terminal will always be appended to the destination string.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu, Siyuan <siyuan.fu@intel.com>
Reviewed-by: Yao, Jiewen <jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15810 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Fu, Siyuan 2014-08-15 05:33:34 +00:00 committed by sfu5
parent 1be2ed90a2
commit a4faf336ea
3 changed files with 14 additions and 9 deletions

View File

@ -259,7 +259,7 @@ UpdateName (
{
EFI_STATUS Status;
EFI_DHCP6_MODE_DATA Dhcp6ModeData;
CHAR16 HandleName[64];
CHAR16 *HandleName;
if (Dhcp6 == NULL) {
return EFI_INVALID_PARAMETER;
@ -279,9 +279,12 @@ UpdateName (
}
if (Dhcp6ModeData.Ia == NULL) {
UnicodeSPrint (HandleName, sizeof (HandleName), L"DHCPv6 (No configured IA)");
HandleName = L"DHCPv6 (No configured IA)";
} else {
StrnCpy (HandleName, mDhcp6ControllerName[Dhcp6ModeData.Ia->State], sizeof (HandleName) / sizeof (CHAR16) - 1);
if (Dhcp6ModeData.Ia->State > Dhcp6Rebinding) {
return EFI_DEVICE_ERROR;
}
HandleName = mDhcp6ControllerName[Dhcp6ModeData.Ia->State];
}
Status = AddUnicodeString2 (

View File

@ -209,7 +209,7 @@ IScsiLunToUnicodeStr (
for (Index = 0; Index < 4; Index++) {
if ((Lun[2 * Index] | Lun[2 * Index + 1]) == 0) {
StrnCpy (TempStr, L"0-", StrLen (L"0-"));
CopyMem (TempStr, L"0-", sizeof (L"0-"));
} else {
TempStr[0] = (CHAR16) IScsiHexString[Lun[2 * Index] >> 4];
TempStr[1] = (CHAR16) IScsiHexString[Lun[2 * Index] & 0x0F];
@ -223,7 +223,9 @@ IScsiLunToUnicodeStr (
TempStr += StrLen (TempStr);
}
//
// Remove the last '-'
//
Str[StrLen (Str) - 1] = 0;
for (Index = StrLen (Str) - 1; Index > 1; Index = Index - 2) {

View File

@ -718,9 +718,9 @@ Ip6ConvertInterfaceInfoToString (
// Print the interface type.
//
if (IfInfo->IfType == Ip6InterfaceTypeEthernet) {
StrnCpy (PortString, IP6_ETHERNET, sizeof (PortString) / sizeof (CHAR16) - 1);
CopyMem (PortString, IP6_ETHERNET, sizeof (IP6_ETHERNET));
} else if (IfInfo->IfType == Ip6InterfaceTypeExperimentalEthernet) {
StrnCpy (PortString, IP6_EXPERIMENTAL_ETHERNET, sizeof (PortString) / sizeof (CHAR16) - 1);
CopyMem (PortString, IP6_EXPERIMENTAL_ETHERNET, sizeof (IP6_EXPERIMENTAL_ETHERNET));
} else {
//
// Refer to RFC1700, chapter Number Hardware Type.
@ -747,9 +747,9 @@ Ip6ConvertInterfaceInfoToString (
for (Index = 0; Index < IfInfo->HwAddressSize; Index++) {
if (IfInfo->HwAddress.Addr[Index] < 0x10) {
StrnCpy (FormatString, L"0%x-", sizeof (FormatString) / sizeof (CHAR16) - 1);
CopyMem (FormatString, L"0%x-", sizeof (L"0%x-"));
} else {
StrnCpy (FormatString, L"%x-", sizeof (FormatString) / sizeof (CHAR16) - 1);
CopyMem (FormatString, L"%x-", sizeof (L"%x-"));
}
Number = UnicodeSPrint (