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python3: Use is_cygpty() to detect a terminal; disable readline with … #2675

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merged 1 commit into from
Aug 14, 2017
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python3: Use is_cygpty() to detect a terminal; disable readline with … #2675

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382 changes: 382 additions & 0 deletions mingw-w64-python3/1700-cygpty-isatty-disable-readline.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,382 @@
diff -Nur Python-3.6.2rc1/Include/iscygpty.h Python-3.6.2rc1_pty/Include/iscygpty.h
--- Python-3.6.2rc1/Include/iscygpty.h 1970-01-01 01:00:00.000000000 +0100
+++ Python-3.6.2rc1_pty/Include/iscygpty.h 2017-06-01 15:06:06.000000000 +0200
@@ -0,0 +1,41 @@
+/*
+ * iscygpty.h -- part of ptycheck
+ * https://github.com/k-takata/ptycheck
+ *
+ * Copyright (c) 2015-2017 K.Takata
+ *
+ * You can redistribute it and/or modify it under the terms of either
+ * the MIT license (as described below) or the Vim license.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _ISCYGPTY_H
+#define _ISCYGPTY_H
+
+#ifdef _WIN32
+int is_cygpty(int fd);
+int is_cygpty_used(void);
+#else
+#define is_cygpty(fd) 0
+#define is_cygpty_used() 0
+#endif
+
+#endif /* _ISCYGPTY_H */
diff -Nur Python-3.6.2rc1/Makefile.pre.in Python-3.6.2rc1_pty/Makefile.pre.in
--- Python-3.6.2rc1/Makefile.pre.in 2017-07-07 15:33:14.892371300 +0200
+++ Python-3.6.2rc1_pty/Makefile.pre.in 2017-07-07 14:39:37.110324600 +0200
@@ -106,7 +106,7 @@
# Extra C flags added for building the interpreter object files.
CFLAGSFORSHARED=@CFLAGSFORSHARED@
# C flags used for building the interpreter object files
-PY_CORE_CFLAGS= $(PY_CFLAGS) $(PY_CFLAGS_NODIST) $(PY_CPPFLAGS) $(CFLAGSFORSHARED) -DPy_BUILD_CORE
+PY_CORE_CFLAGS= $(PY_CFLAGS) $(PY_CFLAGS_NODIST) $(PY_CPPFLAGS) $(CFLAGSFORSHARED) -DPy_BUILD_CORE -D_WIN32_WINNT=0x0600
# Strict or non-strict aliasing flags used to compile dtoa.c, see above
CFLAGS_ALIASING=@CFLAGS_ALIASING@

@@ -343,6 +343,7 @@
Python/graminit.o \
Python/import.o \
Python/importdl.o \
+ Python/iscygpty.o \
Python/marshal.o \
Python/modsupport.o \
Python/mystrtoul.o \
@@ -953,6 +954,7 @@
$(srcdir)/Include/genobject.h \
$(srcdir)/Include/import.h \
$(srcdir)/Include/intrcheck.h \
+ $(srcdir)/Include/iscygpty.h \
$(srcdir)/Include/iterobject.h \
$(srcdir)/Include/listobject.h \
$(srcdir)/Include/longintrepr.h \
diff -Nur Python-3.6.2rc1/Modules/_io/fileio.c Python-3.6.2rc1_pty/Modules/_io/fileio.c
--- Python-3.6.2rc1/Modules/_io/fileio.c 2017-07-07 15:33:04.837796200 +0200
+++ Python-3.6.2rc1_pty/Modules/_io/fileio.c 2017-07-07 14:38:31.805589400 +0200
@@ -17,6 +17,7 @@
#endif
#include <stddef.h> /* For offsetof */
#include "_iomodule.h"
+#include "iscygpty.h"

/*
* Known likely problems:
@@ -1116,7 +1117,7 @@
return err_closed();
Py_BEGIN_ALLOW_THREADS
_Py_BEGIN_SUPPRESS_IPH
- res = isatty(self->fd);
+ res = isatty(self->fd) || is_cygpty(self->fd);
_Py_END_SUPPRESS_IPH
Py_END_ALLOW_THREADS
return PyBool_FromLong(res);
diff -Nur Python-3.6.2rc1/Modules/posixmodule.c Python-3.6.2rc1_pty/Modules/posixmodule.c
--- Python-3.6.2rc1/Modules/posixmodule.c 2017-07-07 15:33:02.160643000 +0200
+++ Python-3.6.2rc1_pty/Modules/posixmodule.c 2017-07-07 14:40:46.610299800 +0200
@@ -31,6 +31,7 @@
#else
#include "winreparse.h"
#endif
+#include "iscygpty.h"

/* On android API level 21, 'AT_EACCESS' is not declared although
* HAVE_FACCESSAT is defined. */
@@ -8357,7 +8358,7 @@
{
int return_value;
_Py_BEGIN_SUPPRESS_IPH
- return_value = isatty(fd);
+ return_value = isatty(fd) || is_cygpty(fd);
_Py_END_SUPPRESS_IPH
return return_value;
}
diff -Nur Python-3.6.2rc1/Modules/readline.c Python-3.6.2rc1_pty/Modules/readline.c
--- Python-3.6.2rc1/Modules/readline.c 2017-07-07 15:32:52.081066500 +0200
+++ Python-3.6.2rc1_pty/Modules/readline.c 2017-07-07 15:30:59.697638600 +0200
@@ -6,6 +6,7 @@

/* Standard definitions */
#include "Python.h"
+#include "iscygpty.h"
#include <stddef.h>
#include <setjmp.h>
#include <signal.h>
@@ -1404,6 +1405,11 @@
PyObject *m;
readlinestate *mod_state;

+ if (!is_cygpty(STDOUT_FILENO)) {
+ PyErr_SetString(PyExc_ImportError, "Not a cygwin terminal");
+ return NULL;
+ }
+
#ifdef __APPLE__
if (strncmp(rl_library_version, libedit_version_tag, strlen(libedit_version_tag)) == 0) {
using_libedit_emulation = 1;
diff -Nur Python-3.6.2rc1/Python/frozenmain.c Python-3.6.2rc1_pty/Python/frozenmain.c
--- Python-3.6.2rc1/Python/frozenmain.c 2017-07-07 15:33:11.848197100 +0200
+++ Python-3.6.2rc1_pty/Python/frozenmain.c 2017-07-07 14:32:32.147018100 +0200
@@ -3,6 +3,7 @@

#include "Python.h"
#include <locale.h>
+#include "iscygpty.h"

#ifdef MS_WINDOWS
extern void PyWinFreeze_ExeInit(void);
@@ -93,7 +94,7 @@
else
sts = 0;

- if (inspect && isatty((int)fileno(stdin)))
+ if (inspect && (isatty((int)fileno(stdin)) || is_cygpty((int)fileno(stdin))))
sts = PyRun_AnyFile(stdin, "<stdin>") != 0;

#ifdef MS_WINDOWS
diff -Nur Python-3.6.2rc1/Python/iscygpty.c Python-3.6.2rc1_pty/Python/iscygpty.c
--- Python-3.6.2rc1/Python/iscygpty.c 1970-01-01 01:00:00.000000000 +0100
+++ Python-3.6.2rc1_pty/Python/iscygpty.c 2017-07-07 14:26:41.145942000 +0200
@@ -0,0 +1,185 @@
+/*
+ * iscygpty.c -- part of ptycheck
+ * https://github.com/k-takata/ptycheck
+ *
+ * Copyright (c) 2015-2017 K.Takata
+ *
+ * You can redistribute it and/or modify it under the terms of either
+ * the MIT license (as described below) or the Vim license.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef _WIN32
+
+#include <ctype.h>
+#include <io.h>
+#include <wchar.h>
+#include <windows.h>
+
+#ifdef USE_FILEEXTD
+/* VC 7.1 or earlier doesn't support SAL. */
+# if !defined(_MSC_VER) || (_MSC_VER < 1400)
+# define __out
+# define __in
+# define __in_opt
+# endif
+/* Win32 FileID API Library:
+ * http://www.microsoft.com/en-us/download/details.aspx?id=22599
+ * Needed for WinXP. */
+# include <fileextd.h>
+#else /* USE_FILEEXTD */
+/* VC 8 or earlier. */
+# if defined(_MSC_VER) && (_MSC_VER < 1500)
+# ifdef ENABLE_STUB_IMPL
+# define STUB_IMPL
+# else
+# error "Win32 FileID API Library is required for VC2005 or earlier."
+# endif
+# endif
+#endif /* USE_FILEEXTD */
+
+
+#include "iscygpty.h"
+
+//#define USE_DYNFILEID
+#ifdef USE_DYNFILEID
+typedef BOOL (WINAPI *pfnGetFileInformationByHandleEx)(
+ HANDLE hFile,
+ FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
+ LPVOID lpFileInformation,
+ DWORD dwBufferSize
+);
+static pfnGetFileInformationByHandleEx pGetFileInformationByHandleEx = NULL;
+
+# ifndef USE_FILEEXTD
+static BOOL WINAPI stub_GetFileInformationByHandleEx(
+ HANDLE hFile,
+ FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
+ LPVOID lpFileInformation,
+ DWORD dwBufferSize
+ )
+{
+ return FALSE;
+}
+# endif
+
+static void setup_fileid_api(void)
+{
+ if (pGetFileInformationByHandleEx != NULL) {
+ return;
+ }
+ pGetFileInformationByHandleEx = (pfnGetFileInformationByHandleEx)
+ GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),
+ "GetFileInformationByHandleEx");
+ if (pGetFileInformationByHandleEx == NULL) {
+# ifdef USE_FILEEXTD
+ pGetFileInformationByHandleEx = GetFileInformationByHandleEx;
+# else
+ pGetFileInformationByHandleEx = stub_GetFileInformationByHandleEx;
+# endif
+ }
+}
+#else
+# define pGetFileInformationByHandleEx GetFileInformationByHandleEx
+# define setup_fileid_api()
+#endif
+
+
+#define is_wprefix(s, prefix) \
+ (wcsncmp((s), (prefix), sizeof(prefix) / sizeof(WCHAR) - 1) == 0)
+
+/* Check if the fd is a cygwin/msys's pty. */
+int is_cygpty(int fd)
+{
+#ifdef STUB_IMPL
+ return 0;
+#else
+ HANDLE h;
+ int size = sizeof(FILE_NAME_INFO) + sizeof(WCHAR) * MAX_PATH;
+ FILE_NAME_INFO *nameinfo;
+ WCHAR *p = NULL;
+
+ setup_fileid_api();
+
+ h = (HANDLE) _get_osfhandle(fd);
+ if (h == INVALID_HANDLE_VALUE) {
+ return 0;
+ }
+ /* Cygwin/msys's pty is a pipe. */
+ if (GetFileType(h) != FILE_TYPE_PIPE) {
+ return 0;
+ }
+ nameinfo = malloc(size);
+ if (nameinfo == NULL) {
+ return 0;
+ }
+ /* Check the name of the pipe:
+ * '\{cygwin,msys}-XXXXXXXXXXXXXXXX-ptyN-{from,to}-master' */
+ if (pGetFileInformationByHandleEx(h, FileNameInfo, nameinfo, size)) {
+ nameinfo->FileName[nameinfo->FileNameLength / sizeof(WCHAR)] = L'\0';
+ p = nameinfo->FileName;
+ if (is_wprefix(p, L"\\cygwin-")) { /* Cygwin */
+ p += 8;
+ } else if (is_wprefix(p, L"\\msys-")) { /* MSYS and MSYS2 */
+ p += 6;
+ } else {
+ p = NULL;
+ }
+ if (p != NULL) {
+ while (*p && isxdigit(*p)) /* Skip 16-digit hexadecimal. */
+ ++p;
+ if (is_wprefix(p, L"-pty")) {
+ p += 4;
+ } else {
+ p = NULL;
+ }
+ }
+ if (p != NULL) {
+ while (*p && isdigit(*p)) /* Skip pty number. */
+ ++p;
+ if (is_wprefix(p, L"-from-master")) {
+ //p += 12;
+ } else if (is_wprefix(p, L"-to-master")) {
+ //p += 10;
+ } else {
+ p = NULL;
+ }
+ }
+ }
+ free(nameinfo);
+ return (p != NULL);
+#endif /* STUB_IMPL */
+}
+
+/* Check if at least one cygwin/msys pty is used. */
+int is_cygpty_used(void)
+{
+ int fd, ret = 0;
+
+ for (fd = 0; fd < 3; fd++) {
+ ret |= is_cygpty(fd);
+ }
+ return ret;
+}
+
+#endif /* _WIN32 */
+
+/* vim: set ts=4 sw=4: */
diff -Nur Python-3.6.2rc1/Python/pylifecycle.c Python-3.6.2rc1_pty/Python/pylifecycle.c
--- Python-3.6.2rc1/Python/pylifecycle.c 2017-07-07 15:33:17.815538400 +0200
+++ Python-3.6.2rc1_pty/Python/pylifecycle.c 2017-07-07 14:20:38.085176100 +0200
@@ -14,6 +14,7 @@
#include "ast.h"
#include "marshal.h"
#include "osdefs.h"
+#include "iscygpty.h"
#include <locale.h>

#ifdef HAVE_SIGNAL_H
@@ -1705,7 +1706,7 @@
int
Py_FdIsInteractive(FILE *fp, const char *filename)
{
- if (isatty((int)fileno(fp)))
+ if (isatty((int)fileno(fp)) || is_cygpty((int)fileno(fp)))
return 1;
if (!Py_InteractiveFlag)
return 0;
diff -Nur Python-3.6.2rc1/setup.py Python-3.6.2rc1_pty/setup.py
--- Python-3.6.2rc1/setup.py 2017-07-07 15:32:54.857225300 +0200
+++ Python-3.6.2rc1_pty/setup.py 2017-07-07 14:55:12.937850900 +0200
@@ -818,10 +818,11 @@
['/usr/lib/termcap'],
'termcap'):
readline_libs.append('termcap')
- exts.append( Extension('readline', ['readline.c'],
+ exts.append( Extension('readline', ['readline.c', '../Python/iscygpty.c'],
library_dirs=['/usr/lib/termcap'],
extra_link_args=readline_extra_link_args,
- libraries=readline_libs) )
+ libraries=readline_libs,
+ extra_compile_args=["-D_WIN32_WINNT=0x0600"]) )
else:
missing.append('readline')

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