/*
* Function: mkAnonPipe
*
* Purpose: create an anonymous pipe with read and write ends being
* optionally (non-)inheritable.
*/
static BOOL
mkAnonPipe (HANDLE* pHandleIn, BOOL isInheritableIn,
HANDLE* pHandleOut, BOOL isInheritableOut)
{
HANDLE hTemporaryIn = NULL;
HANDLE hTemporaryOut = NULL;
/* Create the anon pipe with both ends inheritable */
if (!CreatePipe(&hTemporaryIn, &hTemporaryOut, NULL, 0))
{
maperrno();
*pHandleIn = NULL;
*pHandleOut = NULL;
return FALSE;
}
if (isInheritableIn) {
// SetHandleInformation requires at least Win2k
if (!SetHandleInformation(hTemporaryIn,
HANDLE_FLAG_INHERIT,
HANDLE_FLAG_INHERIT))
{
maperrno();
*pHandleIn = NULL;
*pHandleOut = NULL;
CloseHandle(hTemporaryIn);
CloseHandle(hTemporaryOut);
return FALSE;
}
}
*pHandleIn = hTemporaryIn;
if (isInheritableOut) {
if (!SetHandleInformation(hTemporaryOut,
HANDLE_FLAG_INHERIT,
HANDLE_FLAG_INHERIT))
{
maperrno();
*pHandleIn = NULL;
*pHandleOut = NULL;
CloseHandle(hTemporaryIn);
CloseHandle(hTemporaryOut);
return FALSE;
}
}
*pHandleOut = hTemporaryOut;
return TRUE;
}
int
waitForProcess (ProcHandle handle)
{
DWORD retCode;
if (WaitForSingleObject((HANDLE) handle, INFINITE) == WAIT_OBJECT_0)
{
if (GetExitCodeProcess((HANDLE) handle, &retCode) == 0)
{
maperrno();
return -1;
}
return retCode;
}
maperrno();
return -1;
}
int
terminateProcess (ProcHandle handle)
{
if (!TerminateProcess((HANDLE) handle, 1)) {
maperrno();
return -1;
}
return 0;
}
int
getProcessExitCode (ProcHandle handle, int *pExitCode)
{
*pExitCode = 0;
if (WaitForSingleObject((HANDLE) handle, 1) == WAIT_OBJECT_0)
{
if (GetExitCodeProcess((HANDLE) handle, (DWORD *) pExitCode) == 0)
{
maperrno();
return -1;
}
return 1;
}
return 0;
}
ProcHandle
runProcess (char *cmd, char *workingDirectory, void *environment,
int fdStdInput, int fdStdOutput, int fdStdError)
{
STARTUPINFO sInfo;
PROCESS_INFORMATION pInfo;
DWORD flags;
ZeroMemory(&sInfo, sizeof(sInfo));
sInfo.cb = sizeof(sInfo);
sInfo.hStdInput = (HANDLE) _get_osfhandle(fdStdInput);
sInfo.hStdOutput= (HANDLE) _get_osfhandle(fdStdOutput);
sInfo.hStdError = (HANDLE) _get_osfhandle(fdStdError);
if (sInfo.hStdInput == INVALID_HANDLE_VALUE)
sInfo.hStdInput = NULL;
if (sInfo.hStdOutput == INVALID_HANDLE_VALUE)
sInfo.hStdOutput = NULL;
if (sInfo.hStdError == INVALID_HANDLE_VALUE)
sInfo.hStdError = NULL;
if (sInfo.hStdInput || sInfo.hStdOutput || sInfo.hStdError)
sInfo.dwFlags = STARTF_USESTDHANDLES;
if (sInfo.hStdInput != GetStdHandle(STD_INPUT_HANDLE) &&
sInfo.hStdOutput != GetStdHandle(STD_OUTPUT_HANDLE) &&
sInfo.hStdError != GetStdHandle(STD_ERROR_HANDLE))
flags = CREATE_NO_WINDOW; // Run without console window only when both output and error are redirected
else
flags = 0;
if (!CreateProcess(NULL, cmd, NULL, NULL, TRUE, flags, environment, workingDirectory, &sInfo, &pInfo))
{
maperrno();
return -1;
}
CloseHandle(pInfo.hThread);
return (ProcHandle)pInfo.hProcess;
}
ProcHandle
runInteractiveProcess (wchar_t *cmd, wchar_t *workingDirectory,
void *environment,
int fdStdIn, int fdStdOut, int fdStdErr,
int *pfdStdInput, int *pfdStdOutput, int *pfdStdError,
int close_fds)
{
STARTUPINFO sInfo;
PROCESS_INFORMATION pInfo;
HANDLE hStdInputRead = INVALID_HANDLE_VALUE;
HANDLE hStdInputWrite = INVALID_HANDLE_VALUE;
HANDLE hStdOutputRead = INVALID_HANDLE_VALUE;
HANDLE hStdOutputWrite = INVALID_HANDLE_VALUE;
HANDLE hStdErrorRead = INVALID_HANDLE_VALUE;
HANDLE hStdErrorWrite = INVALID_HANDLE_VALUE;
DWORD flags;
BOOL status;
BOOL inherit;
ZeroMemory(&sInfo, sizeof(sInfo));
sInfo.cb = sizeof(sInfo);
sInfo.dwFlags = STARTF_USESTDHANDLES;
if (fdStdIn == -1) {
if (!mkAnonPipe(&hStdInputRead, TRUE, &hStdInputWrite, FALSE))
goto cleanup_err;
sInfo.hStdInput = hStdInputRead;
} else if (fdStdIn == 0) {
// Don't duplicate stdin, as console handles cannot be
// duplicated and inherited. urg.
sInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
} else {
// The handle might not be inheritable, so duplicate it
status = DuplicateHandle(GetCurrentProcess(),
(HANDLE) _get_osfhandle(fdStdIn),
GetCurrentProcess(), &hStdInputRead,
0,
TRUE, /* inheritable */
DUPLICATE_SAME_ACCESS);
if (!status) goto cleanup_err;
sInfo.hStdInput = hStdInputRead;
}
if (fdStdOut == -1) {
if (!mkAnonPipe(&hStdOutputRead, FALSE, &hStdOutputWrite, TRUE))
goto cleanup_err;
sInfo.hStdOutput = hStdOutputWrite;
} else if (fdStdOut == 1) {
// Don't duplicate stdout, as console handles cannot be
// duplicated and inherited. urg.
sInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
} else {
// The handle might not be inheritable, so duplicate it
status = DuplicateHandle(GetCurrentProcess(),
(HANDLE) _get_osfhandle(fdStdOut),
GetCurrentProcess(), &hStdOutputWrite,
0,
TRUE, /* inheritable */
DUPLICATE_SAME_ACCESS);
if (!status) goto cleanup_err;
sInfo.hStdOutput = hStdOutputWrite;
}
if (fdStdErr == -1) {
if (!mkAnonPipe(&hStdErrorRead, TRUE, &hStdErrorWrite, TRUE))
goto cleanup_err;
sInfo.hStdError = hStdErrorWrite;
} else if (fdStdErr == 2) {
// Don't duplicate stderr, as console handles cannot be
// duplicated and inherited. urg.
sInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
} else {
/* The handle might not be inheritable, so duplicate it */
status = DuplicateHandle(GetCurrentProcess(),
(HANDLE) _get_osfhandle(fdStdErr),
GetCurrentProcess(), &hStdErrorWrite,
0,
TRUE, /* inheritable */
DUPLICATE_SAME_ACCESS);
if (!status) goto cleanup_err;
sInfo.hStdError = hStdErrorWrite;
}
if (sInfo.hStdInput != GetStdHandle(STD_INPUT_HANDLE) &&
sInfo.hStdOutput != GetStdHandle(STD_OUTPUT_HANDLE) &&
sInfo.hStdError != GetStdHandle(STD_ERROR_HANDLE))
flags = CREATE_NO_WINDOW; // Run without console window only when both output and error are redirected
else
flags = 0;
// See #3231
if (close_fds && fdStdIn == 0 && fdStdOut == 1 && fdStdErr == 2) {
inherit = FALSE;
} else {
inherit = TRUE;
}
if (!CreateProcess(NULL, cmd, NULL, NULL, inherit, flags, environment, workingDirectory, &sInfo, &pInfo))
{
goto cleanup_err;
}
CloseHandle(pInfo.hThread);
// Close the ends of the pipes that were inherited by the
// child process. This is important, otherwise we won't see
// EOF on these pipes when the child process exits.
if (hStdInputRead != INVALID_HANDLE_VALUE) CloseHandle(hStdInputRead);
if (hStdOutputWrite != INVALID_HANDLE_VALUE) CloseHandle(hStdOutputWrite);
if (hStdErrorWrite != INVALID_HANDLE_VALUE) CloseHandle(hStdErrorWrite);
*pfdStdInput = _open_osfhandle((intptr_t) hStdInputWrite, _O_WRONLY);
*pfdStdOutput = _open_osfhandle((intptr_t) hStdOutputRead, _O_RDONLY);
*pfdStdError = _open_osfhandle((intptr_t) hStdErrorRead, _O_RDONLY);
return (int) pInfo.hProcess;
cleanup_err:
if (hStdInputRead != INVALID_HANDLE_VALUE) CloseHandle(hStdInputRead);
if (hStdInputWrite != INVALID_HANDLE_VALUE) CloseHandle(hStdInputWrite);
if (hStdOutputRead != INVALID_HANDLE_VALUE) CloseHandle(hStdOutputRead);
if (hStdOutputWrite != INVALID_HANDLE_VALUE) CloseHandle(hStdOutputWrite);
if (hStdErrorRead != INVALID_HANDLE_VALUE) CloseHandle(hStdErrorRead);
if (hStdErrorWrite != INVALID_HANDLE_VALUE) CloseHandle(hStdErrorWrite);
maperrno();
return -1;
}
ProcHandle
runInteractiveProcess (char *cmd, char *workingDirectory, void *environment,
int *pfdStdInput, int *pfdStdOutput, int *pfdStdError)
{
STARTUPINFO sInfo;
PROCESS_INFORMATION pInfo;
HANDLE hStdInputRead, hStdInputWrite;
HANDLE hStdOutputRead, hStdOutputWrite;
HANDLE hStdErrorRead, hStdErrorWrite;
if (!mkAnonPipe(&hStdInputRead, TRUE, &hStdInputWrite, FALSE))
return -1;
if (!mkAnonPipe(&hStdOutputRead, FALSE, &hStdOutputWrite, TRUE))
{
CloseHandle(hStdInputRead);
CloseHandle(hStdInputWrite);
return -1;
}
if (!mkAnonPipe(&hStdErrorRead, FALSE, &hStdErrorWrite, TRUE))
{
CloseHandle(hStdInputRead);
CloseHandle(hStdInputWrite);
CloseHandle(hStdOutputRead);
CloseHandle(hStdOutputWrite);
return -1;
}
ZeroMemory(&sInfo, sizeof(sInfo));
sInfo.cb = sizeof(sInfo);
sInfo.dwFlags = STARTF_USESTDHANDLES;
sInfo.hStdInput = hStdInputRead;
sInfo.hStdOutput= hStdOutputWrite;
sInfo.hStdError = hStdErrorWrite;
if (!CreateProcess(NULL, cmd, NULL, NULL, TRUE, CREATE_NO_WINDOW, environment, workingDirectory, &sInfo, &pInfo))
{
maperrno();
CloseHandle(hStdInputRead);
CloseHandle(hStdInputWrite);
CloseHandle(hStdOutputRead);
CloseHandle(hStdOutputWrite);
CloseHandle(hStdErrorRead);
CloseHandle(hStdErrorWrite);
return -1;
}
CloseHandle(pInfo.hThread);
// Close the ends of the pipes that were inherited by the
// child process. This is important, otherwise we won't see
// EOF on these pipes when the child process exits.
CloseHandle(hStdInputRead);
CloseHandle(hStdOutputWrite);
CloseHandle(hStdErrorWrite);
*pfdStdInput = _open_osfhandle((intptr_t) hStdInputWrite, _O_WRONLY);
*pfdStdOutput = _open_osfhandle((intptr_t) hStdOutputRead, _O_RDONLY);
*pfdStdError = _open_osfhandle((intptr_t) hStdErrorRead, _O_RDONLY);
return (int) pInfo.hProcess;
}
/*
* Function: mkAnonPipe
*
* Purpose: create an anonymous pipe with read and write ends being
* optionally (non-)inheritable.
*/
static BOOL
mkAnonPipe (HANDLE* pHandleIn, BOOL isInheritableIn,
HANDLE* pHandleOut, BOOL isInheritableOut)
{
HANDLE hTemporaryIn = NULL;
HANDLE hTemporaryOut = NULL;
BOOL status;
SECURITY_ATTRIBUTES sec_attrs;
/* Create inheritable security attributes */
sec_attrs.nLength = sizeof(SECURITY_ATTRIBUTES);
sec_attrs.lpSecurityDescriptor = NULL;
sec_attrs.bInheritHandle = TRUE;
/* Create the anon pipe with both ends inheritable */
if (!CreatePipe(&hTemporaryIn, &hTemporaryOut, &sec_attrs, 0))
{
maperrno();
*pHandleIn = NULL;
*pHandleOut = NULL;
return FALSE;
}
if (isInheritableIn)
*pHandleIn = hTemporaryIn;
else
{
/* Make the read end non-inheritable */
status = DuplicateHandle(GetCurrentProcess(), hTemporaryIn,
GetCurrentProcess(), pHandleIn,
0,
FALSE, /* non-inheritable */
DUPLICATE_SAME_ACCESS);
CloseHandle(hTemporaryIn);
if (!status)
{
maperrno();
*pHandleIn = NULL;
*pHandleOut = NULL;
CloseHandle(hTemporaryOut);
return FALSE;
}
}
if (isInheritableOut)
*pHandleOut = hTemporaryOut;
else
{
/* Make the write end non-inheritable */
status = DuplicateHandle(GetCurrentProcess(), hTemporaryOut,
GetCurrentProcess(), pHandleOut,
0,
FALSE, /* non-inheritable */
DUPLICATE_SAME_ACCESS);
CloseHandle(hTemporaryOut);
if (!status)
{
maperrno();
*pHandleIn = NULL;
*pHandleOut = NULL;
CloseHandle(*pHandleIn);
return FALSE;
}
}
return TRUE;
}
