diff --git a/ChangeLog b/ChangeLog
index 7dbfdb2c..ca06ec7f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,25 @@
+2012-01-28 Eli Zaretskii <eliz@gnu.org>
+
+ Fix failures on MS-Windows when Make's standard handles are invalid.
+ This can happen when Make is invoked from a GUI application.
+
+ * w32/subproc/sub_proc.c (process_init_fd): Don't dereference
+ pproc if it is a NULL pointer.
+ (process_begin, process_cleanup): Don't try to close pipe handles
+ whose value is INVALID_HANDLE_VALUE.
+ (process_easy): Initialize hIn, hOut, and hErr to
+ INVALID_HANDLE_VALUE. If DuplicateHandle fails with
+ ERROR_INVALID_HANDLE, duplicate a handle for the null device
+ instead of STD_INPUT_HANDLE, STD_OUTPUT_HANDLE or
+ STD_ERROR_HANDLE. Don't try to close pipe handles whose value is
+ INVALID_HANDLE_VALUE.
+
+ * function.c (windows32_openpipe): Initialize hIn and hErr to
+ INVALID_HANDLE_VALUE. If DuplicateHandle fails with
+ ERROR_INVALID_HANDLE, duplicate a handle for the null device
+ instead of STD_INPUT_HANDLE or STD_ERROR_HANDLE. Fix indentation.
+ Don't try to close handles whose value is INVALID_HANDLE_VALUE.
+
2012-01-25 Eli Zaretskii <eliz@gnu.org>
* function.c (define_new_function): Fix format strings in calls to
diff --git a/function.c b/function.c
index 52235db6..29b106fc 100644
--- a/function.c
+++ b/function.c
@@ -1434,37 +1434,70 @@ void
windows32_openpipe (int *pipedes, pid_t *pid_p, char **command_argv, char **envp)
{
SECURITY_ATTRIBUTES saAttr;
- HANDLE hIn;
- HANDLE hErr;
+ HANDLE hIn = INVALID_HANDLE_VALUE;
+ HANDLE hErr = INVALID_HANDLE_VALUE;
HANDLE hChildOutRd;
HANDLE hChildOutWr;
- HANDLE hProcess;
-
+ HANDLE hProcess, tmpIn, tmpErr;
+ DWORD e;
saAttr.nLength = sizeof (SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;
+ /* Standard handles returned by GetStdHandle can be NULL or
+ INVALID_HANDLE_VALUE if the parent process closed them. If that
+ happens, we open the null device and pass its handle to
+ process_begin below as the corresponding handle to inherit. */
+ tmpIn = GetStdHandle(STD_INPUT_HANDLE);
if (DuplicateHandle (GetCurrentProcess(),
- GetStdHandle(STD_INPUT_HANDLE),
+ tmpIn,
GetCurrentProcess(),
&hIn,
0,
TRUE,
DUPLICATE_SAME_ACCESS) == FALSE) {
- fatal (NILF, _("windows32_openpipe(): DuplicateHandle(In) failed (e=%ld)\n"),
- GetLastError());
-
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpIn = CreateFile("NUL", GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpIn != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpIn,
+ GetCurrentProcess(),
+ &hIn,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpIn);
+ }
+ if (hIn == INVALID_HANDLE_VALUE)
+ fatal (NILF, _("windows32_openpipe: DuplicateHandle(In) failed (e=%ld)\n"), e);
}
+ tmpErr = GetStdHandle(STD_ERROR_HANDLE);
if (DuplicateHandle(GetCurrentProcess(),
- GetStdHandle(STD_ERROR_HANDLE),
+ tmpErr,
GetCurrentProcess(),
&hErr,
0,
TRUE,
DUPLICATE_SAME_ACCESS) == FALSE) {
- fatal (NILF, _("windows32_open_pipe(): DuplicateHandle(Err) failed (e=%ld)\n"),
- GetLastError());
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpErr = CreateFile("NUL", GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpErr != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpErr,
+ GetCurrentProcess(),
+ &hErr,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpErr);
+ }
+ if (hErr == INVALID_HANDLE_VALUE)
+ fatal (NILF, _("windows32_openpipe: DuplicateHandle(Err) failed (e=%ld)\n"), e);
}
if (!CreatePipe(&hChildOutRd, &hChildOutWr, &saAttr, 0))
@@ -1483,23 +1516,25 @@ windows32_openpipe (int *pipedes, pid_t *pid_p, char **command_argv, char **envp
if (!process_begin(hProcess, command_argv, envp, command_argv[0], NULL)) {
/* register process for wait */
- process_register(hProcess);
+ process_register(hProcess);
/* set the pid for returning to caller */
- *pid_p = (pid_t) hProcess;
+ *pid_p = (pid_t) hProcess;
- /* set up to read data from child */
- pipedes[0] = _open_osfhandle((intptr_t) hChildOutRd, O_RDONLY);
+ /* set up to read data from child */
+ pipedes[0] = _open_osfhandle((intptr_t) hChildOutRd, O_RDONLY);
- /* this will be closed almost right away */
- pipedes[1] = _open_osfhandle((intptr_t) hChildOutWr, O_APPEND);
+ /* this will be closed almost right away */
+ pipedes[1] = _open_osfhandle((intptr_t) hChildOutWr, O_APPEND);
} else {
/* reap/cleanup the failed process */
process_cleanup(hProcess);
/* close handles which were duplicated, they weren't used */
- CloseHandle(hIn);
- CloseHandle(hErr);
+ if (hIn != INVALID_HANDLE_VALUE)
+ CloseHandle(hIn);
+ if (hErr != INVALID_HANDLE_VALUE)
+ CloseHandle(hErr);
/* close pipe handles, they won't be used */
CloseHandle(hChildOutRd);
diff --git a/w32/subproc/sub_proc.c b/w32/subproc/sub_proc.c
index be5f1a2c..2b1b29ce 100644
--- a/w32/subproc/sub_proc.c
+++ b/w32/subproc/sub_proc.c
@@ -462,17 +462,19 @@ process_init_fd(HANDLE stdinh, HANDLE stdouth, HANDLE stderrh)
sub_process *pproc;
pproc = malloc(sizeof(*pproc));
- memset(pproc, 0, sizeof(*pproc));
+ if (pproc) {
+ memset(pproc, 0, sizeof(*pproc));
- /*
- * Just pass the provided file handles to the 'child side' of the
- * pipe, bypassing pipes altogether.
- */
- pproc->sv_stdin[1] = (intptr_t) stdinh;
- pproc->sv_stdout[1] = (intptr_t) stdouth;
- pproc->sv_stderr[1] = (intptr_t) stderrh;
+ /*
+ * Just pass the provided file handles to the 'child
+ * side' of the pipe, bypassing pipes altogether.
+ */
+ pproc->sv_stdin[1] = (intptr_t) stdinh;
+ pproc->sv_stdout[1] = (intptr_t) stdouth;
+ pproc->sv_stderr[1] = (intptr_t) stderrh;
- pproc->last_err = pproc->lerrno = 0;
+ pproc->last_err = pproc->lerrno = 0;
+ }
return((HANDLE)pproc);
}
@@ -711,9 +713,12 @@ process_begin(
CloseHandle(procInfo.hThread);
/* Close the halves of the pipes we don't need */
- CloseHandle((HANDLE)pproc->sv_stdin[1]);
- CloseHandle((HANDLE)pproc->sv_stdout[1]);
- CloseHandle((HANDLE)pproc->sv_stderr[1]);
+ if ((HANDLE)pproc->sv_stdin[1] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stdin[1]);
+ if ((HANDLE)pproc->sv_stdout[1] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stdout[1]);
+ if ((HANDLE)pproc->sv_stderr[1] != INVALID_HANDLE_VALUE)
+ CloseHandle((HANDLE)pproc->sv_stderr[1]);
pproc->sv_stdin[1] = 0;
pproc->sv_stdout[1] = 0;
pproc->sv_stderr[1] = 0;
@@ -1064,11 +1069,14 @@ process_cleanup(
if (pproc->using_pipes) {
for (i= 0; i <= 1; i++) {
- if ((HANDLE)pproc->sv_stdin[i])
+ if ((HANDLE)pproc->sv_stdin[i]
+ && (HANDLE)pproc->sv_stdin[i] != INVALID_HANDLE_VALUE)
CloseHandle((HANDLE)pproc->sv_stdin[i]);
- if ((HANDLE)pproc->sv_stdout[i])
+ if ((HANDLE)pproc->sv_stdout[i]
+ && (HANDLE)pproc->sv_stdout[i] != INVALID_HANDLE_VALUE)
CloseHandle((HANDLE)pproc->sv_stdout[i]);
- if ((HANDLE)pproc->sv_stderr[i])
+ if ((HANDLE)pproc->sv_stderr[i]
+ && (HANDLE)pproc->sv_stderr[i] != INVALID_HANDLE_VALUE)
CloseHandle((HANDLE)pproc->sv_stderr[i]);
}
}
@@ -1333,50 +1341,100 @@ process_easy(
char **argv,
char **envp)
{
- HANDLE hIn;
- HANDLE hOut;
- HANDLE hErr;
- HANDLE hProcess;
+ HANDLE hIn = INVALID_HANDLE_VALUE;
+ HANDLE hOut = INVALID_HANDLE_VALUE;
+ HANDLE hErr = INVALID_HANDLE_VALUE;
+ HANDLE hProcess, tmpIn, tmpOut, tmpErr;
+ DWORD e;
if (proc_index >= MAXIMUM_WAIT_OBJECTS) {
DB (DB_JOBS, ("process_easy: All process slots used up\n"));
return INVALID_HANDLE_VALUE;
}
+ /* Standard handles returned by GetStdHandle can be NULL or
+ INVALID_HANDLE_VALUE if the parent process closed them. If that
+ happens, we open the null device and pass its handle to
+ CreateProcess as the corresponding handle to inherit. */
+ tmpIn = GetStdHandle(STD_INPUT_HANDLE);
if (DuplicateHandle(GetCurrentProcess(),
- GetStdHandle(STD_INPUT_HANDLE),
- GetCurrentProcess(),
- &hIn,
- 0,
- TRUE,
- DUPLICATE_SAME_ACCESS) == FALSE) {
- fprintf(stderr,
- "process_easy: DuplicateHandle(In) failed (e=%ld)\n",
- GetLastError());
- return INVALID_HANDLE_VALUE;
+ tmpIn,
+ GetCurrentProcess(),
+ &hIn,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE) {
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpIn = CreateFile("NUL", GENERIC_READ,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpIn != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpIn,
+ GetCurrentProcess(),
+ &hIn,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpIn);
+ }
+ if (hIn == INVALID_HANDLE_VALUE) {
+ fprintf(stderr, "process_easy: DuplicateHandle(In) failed (e=%ld)\n", e);
+ return INVALID_HANDLE_VALUE;
+ }
}
+ tmpOut = GetStdHandle (STD_OUTPUT_HANDLE);
if (DuplicateHandle(GetCurrentProcess(),
- GetStdHandle(STD_OUTPUT_HANDLE),
- GetCurrentProcess(),
- &hOut,
- 0,
- TRUE,
- DUPLICATE_SAME_ACCESS) == FALSE) {
- fprintf(stderr,
- "process_easy: DuplicateHandle(Out) failed (e=%ld)\n",
- GetLastError());
- return INVALID_HANDLE_VALUE;
+ tmpOut,
+ GetCurrentProcess(),
+ &hOut,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE) {
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpOut = CreateFile("NUL", GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpOut != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpOut,
+ GetCurrentProcess(),
+ &hOut,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpOut);
+ }
+ if (hOut == INVALID_HANDLE_VALUE) {
+ fprintf(stderr, "process_easy: DuplicateHandle(Out) failed (e=%ld)\n", e);
+ return INVALID_HANDLE_VALUE;
+ }
}
+ tmpErr = GetStdHandle(STD_ERROR_HANDLE);
if (DuplicateHandle(GetCurrentProcess(),
- GetStdHandle(STD_ERROR_HANDLE),
- GetCurrentProcess(),
- &hErr,
- 0,
- TRUE,
- DUPLICATE_SAME_ACCESS) == FALSE) {
- fprintf(stderr,
- "process_easy: DuplicateHandle(Err) failed (e=%ld)\n",
- GetLastError());
- return INVALID_HANDLE_VALUE;
+ tmpErr,
+ GetCurrentProcess(),
+ &hErr,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE) {
+ if ((e = GetLastError()) == ERROR_INVALID_HANDLE) {
+ tmpErr = CreateFile("NUL", GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+ OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (tmpErr != INVALID_HANDLE_VALUE
+ && DuplicateHandle(GetCurrentProcess(),
+ tmpErr,
+ GetCurrentProcess(),
+ &hErr,
+ 0,
+ TRUE,
+ DUPLICATE_SAME_ACCESS) == FALSE)
+ CloseHandle(tmpErr);
+ }
+ if (hErr == INVALID_HANDLE_VALUE) {
+ fprintf(stderr, "process_easy: DuplicateHandle(Err) failed (e=%ld)\n", e);
+ return INVALID_HANDLE_VALUE;
+ }
}
hProcess = process_init_fd(hIn, hOut, hErr);
@@ -1389,9 +1447,12 @@ process_easy(
((sub_process*) hProcess)->exit_code = process_last_err(hProcess);
/* close up unused handles */
- CloseHandle(hIn);
- CloseHandle(hOut);
- CloseHandle(hErr);
+ if (hIn != INVALID_HANDLE_VALUE)
+ CloseHandle(hIn);
+ if (hOut != INVALID_HANDLE_VALUE)
+ CloseHandle(hOut);
+ if (hErr != INVALID_HANDLE_VALUE)
+ CloseHandle(hErr);
}
process_register(hProcess);