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launcher: List, Info command implementation

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This commit is contained in:
Bill Zissimopoulos 2016-05-11 15:20:23 -07:00
parent 528cbd3295
commit ab48beb4ba
1 changed files with 89 additions and 3 deletions
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92
src/launcher/launcher.c
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@ -280,6 +280,67 @@ VOID SvcInstanceStop(PWSTR InstanceName)
LeaveCriticalSection(&SvcInstanceLock);
}
VOID SvcInstanceGetNameList(PWSTR Buffer, PULONG PSize)
{
SVC_INSTANCE *SvcInstance;
PLIST_ENTRY ListEntry;
PWSTR BufferBeg = Buffer, BufferEnd = Buffer + *PSize / sizeof(WCHAR);
ULONG InstanceNameSize;
EnterCriticalSection(&SvcInstanceLock);
for (ListEntry = SvcInstanceList.Flink;
&SvcInstanceList != ListEntry;
ListEntry = ListEntry->Flink)
{
SvcInstance = CONTAINING_RECORD(ListEntry, SVC_INSTANCE, ListEntry);
InstanceNameSize = lstrlenW(SvcInstance->InstanceName) + 1;
if (BufferEnd < Buffer + InstanceNameSize)
break;
memcpy(Buffer, SvcInstance->InstanceName, InstanceNameSize * sizeof(WCHAR));
Buffer += InstanceNameSize;
}
LeaveCriticalSection(&SvcInstanceLock);
*PSize = (ULONG)(Buffer - BufferBeg);
}
NTSTATUS SvcInstanceGetInfo(PWSTR InstanceName, PWSTR Buffer, PULONG PSize)
{
SVC_INSTANCE *SvcInstance;
ULONG ClassNameSize, InstanceNameSize, CommandLineSize;
EnterCriticalSection(&SvcInstanceLock);
SvcInstance = SvcInstanceFromName(InstanceName);
if (0 != SvcInstance)
{
ClassNameSize = lstrlenW(SvcInstance->ClassName) + 1;
InstanceNameSize = lstrlenW(SvcInstance->InstanceName) + 1;
CommandLineSize = lstrlenW(SvcInstance->CommandLine) + 1;
if (*PSize < (ClassNameSize + InstanceNameSize + CommandLineSize) * sizeof(WCHAR))
{
memcpy(Buffer, SvcInstance->ClassName,
ClassNameSize * sizeof(WCHAR));
memcpy(Buffer + ClassNameSize, SvcInstance->InstanceName,
InstanceNameSize * sizeof(WCHAR));
memcpy(Buffer + ClassNameSize + InstanceNameSize, SvcInstance->CommandLine,
CommandLineSize * sizeof(WCHAR));
Result = STATUS_SUCCESS;
}
else
Result = STATUS_BUFFER_TOO_SMALL;
}
else
Result = STATUS_OBJECT_NAME_NOT_FOUND;
LeaveCriticalSection(&SvcInstanceLock);
return Result;
}
static HANDLE SvcThread, SvcEvent;
static HANDLE SvcPipe = INVALID_HANDLE_VALUE;
static OVERLAPPED SvcOverlapped;
@ -514,8 +575,13 @@ static VOID SvcPipeTransact(PWSTR PipeBuf, PULONG PSize)
if (0 != ClassName && 0 != InstanceName)
Result = SvcInstanceStart(ClassName, InstanceName, Argc, Argv);
*PipeBuf = NT_SUCCESS(Result) ? L'+' : L'-';
*PSize = 1;
if (NT_SUCCESS(Result))
{
*PipeBuf = L'$';
*PSize = 1;
}
else
*PSize = wsprintfW(PipeBuf, L"!%08lx", FspNtStatusFromWin32(Result));
break;
case LauncherSvcInstanceStop:
@ -523,15 +589,35 @@ static VOID SvcPipeTransact(PWSTR PipeBuf, PULONG PSize)
if (0 != InstanceName)
SvcInstanceStop(InstanceName);
*PipeBuf = L'+';
*PipeBuf = L'$';
*PSize = 1;
break;
case LauncherSvcInstanceList:
*PSize = PIPE_SRVBUF_SIZE - 1;
SvcInstanceGetNameList(PipeBuf + 1, PSize);
*PipeBuf = L'$';
*PSize++;
break;
case LauncherSvcInstanceInfo:
InstanceName = SvcPipeTransactGetPart(&P, PipeBufEnd);
Result = STATUS_UNSUCCESSFUL;
if (0 != InstanceName)
{
*PSize = PIPE_SRVBUF_SIZE - 1;
Result = SvcInstanceGetInfo(InstanceName, PipeBuf + 1, PSize);
}
if (NT_SUCCESS(Result))
{
*PipeBuf = L'$';
*PSize++;
}
else
*PSize = wsprintfW(PipeBuf, L"!%08lx", FspNtStatusFromWin32(Result));
break;
default: