* [PATCH v9 1/1] Cygwin: pty: add pseudo console support.
2019-08-27 18:04 [PATCH v9 0/1] Cygwin: pty: add pseudo console support Takashi Yano
@ 2019-08-27 18:04 ` Takashi Yano
0 siblings, 0 replies; 2+ messages in thread
From: Takashi Yano @ 2019-08-27 18:04 UTC (permalink / raw)
To: cygwin-developers; +Cc: Takashi Yano
- Support pseudo console in PTY. Pseudo console is a new feature
in Windows 10 1809, which provides console APIs on virtual
terminal. With this patch, native console applications can work
in PTYs such as mintty, ssh, gnu screen or tmux.
---
winsup/cygwin/dtable.cc | 51 +
winsup/cygwin/fhandler.h | 45 +-
winsup/cygwin/fhandler_console.cc | 32 +
winsup/cygwin/fhandler_tty.cc | 1765 ++++++++++++++++++++++++-
winsup/cygwin/fork.cc | 24 +
winsup/cygwin/init.cc | 1 +
winsup/cygwin/select.cc | 22 +-
winsup/cygwin/spawn.cc | 61 +
winsup/cygwin/strace.cc | 24 +
winsup/cygwin/tty.cc | 8 +
winsup/cygwin/tty.h | 24 +-
winsup/utils/cygwin-console-helper.cc | 14 +-
12 files changed, 2016 insertions(+), 55 deletions(-)
diff --git a/winsup/cygwin/dtable.cc b/winsup/cygwin/dtable.cc
index 636221a77..ba5d16206 100644
--- a/winsup/cygwin/dtable.cc
+++ b/winsup/cygwin/dtable.cc
@@ -147,6 +147,36 @@ dtable::get_debugger_info ()
void
dtable::stdio_init ()
{
+ bool need_fixup_handle = false;
+ fhandler_pty_slave *ptys = NULL;
+ bool is_pty[3] = {false, false, false};
+ for (int fd = 0; fd < 3; fd ++)
+ {
+ fhandler_base *fh = cygheap->fdtab[fd];
+ if (fh && fh->get_major () == DEV_PTYS_MAJOR)
+ {
+ ptys = (fhandler_pty_slave *) fh;
+ if (ptys->getPseudoConsole ())
+ {
+ is_pty[fd] = true;
+ bool attached = !!fhandler_console::get_console_process_id
+ (ptys->getHelperProcessId (), true);
+ if (!attached)
+ {
+ /* Not attached to pseudo console in fork() or spawn()
+ by some reason. This happens if the executable is
+ a windows GUI binary, such as mintty. */
+ FreeConsole ();
+ AttachConsole (ptys->getHelperProcessId ());
+ need_fixup_handle = true;
+ }
+ ptys->reset_switch_to_pcon ();
+ }
+ }
+ }
+ if (need_fixup_handle)
+ goto fixup_handle;
+
if (myself->cygstarted || ISSTATE (myself, PID_CYGPARENT))
{
tty_min *t = cygwin_shared->tty.get_cttyp ();
@@ -155,6 +185,27 @@ dtable::stdio_init ()
return;
}
+fixup_handle:
+ if (need_fixup_handle)
+ {
+ HANDLE h;
+ h = CreateFile ("CONIN$", GENERIC_READ, FILE_SHARE_READ,
+ NULL, OPEN_EXISTING, 0, 0);
+ if (is_pty[0])
+ {
+ SetStdHandle (STD_INPUT_HANDLE, h);
+ ptys->set_handle (h);
+ }
+ h = CreateFile ("CONOUT$", GENERIC_WRITE, FILE_SHARE_WRITE,
+ NULL, OPEN_EXISTING, 0, 0);
+ if (is_pty[1])
+ SetStdHandle (STD_OUTPUT_HANDLE, h);
+ if (is_pty[2])
+ SetStdHandle (STD_ERROR_HANDLE, h);
+ if (is_pty[1] || is_pty[2])
+ ptys->set_output_handle (h);
+ }
+
HANDLE in = GetStdHandle (STD_INPUT_HANDLE);
HANDLE out = GetStdHandle (STD_OUTPUT_HANDLE);
HANDLE err = GetStdHandle (STD_ERROR_HANDLE);
diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h
index 794948dba..c75e40c0a 100644
--- a/winsup/cygwin/fhandler.h
+++ b/winsup/cygwin/fhandler.h
@@ -2019,6 +2019,7 @@ private:
static bool need_invisible ();
static void free_console ();
static const char *get_nonascii_key (INPUT_RECORD& input_rec, char *);
+ static DWORD get_console_process_id (DWORD pid, bool match);
fhandler_console (void *) {}
@@ -2051,8 +2052,8 @@ class fhandler_pty_common: public fhandler_termios
public:
fhandler_pty_common ()
: fhandler_termios (),
- output_mutex (NULL),
- input_mutex (NULL), input_available_event (NULL)
+ output_mutex (NULL), input_mutex (NULL),
+ input_available_event (NULL)
{
pc.file_attributes (FILE_ATTRIBUTE_NORMAL);
}
@@ -2089,14 +2090,29 @@ class fhandler_pty_common: public fhandler_termios
return fh;
}
+ bool attach_pcon_in_fork (void)
+ {
+ return get_ttyp ()->attach_pcon_in_fork;
+ }
+ DWORD getHelperProcessId (void)
+ {
+ return get_ttyp ()->HelperProcessId;
+ }
+ HPCON getPseudoConsole (void)
+ {
+ return get_ttyp ()->hPseudoConsole;
+ }
+
protected:
- BOOL process_opost_output (HANDLE h, const void *ptr, ssize_t& len, bool is_echo);
+ BOOL process_opost_output (HANDLE h,
+ const void *ptr, ssize_t& len, bool is_echo);
+ bool check_switch_to_pcon (void);
};
class fhandler_pty_slave: public fhandler_pty_common
{
HANDLE inuse; // used to indicate that a tty is in use
- HANDLE output_handle_cyg;
+ HANDLE output_handle_cyg, io_handle_cyg;
/* Helper functions for fchmod and fchown. */
bool fch_open_handles (bool chown);
@@ -2106,9 +2122,13 @@ class fhandler_pty_slave: public fhandler_pty_common
public:
/* Constructor */
fhandler_pty_slave (int);
+ /* Destructor */
+ ~fhandler_pty_slave ();
void set_output_handle_cyg (HANDLE h) { output_handle_cyg = h; }
HANDLE& get_output_handle_cyg () { return output_handle_cyg; }
+ void set_handle_cyg (HANDLE h) { io_handle_cyg = h; }
+ HANDLE& get_handle_cyg () { return io_handle_cyg; }
int open (int flags, mode_t mode = 0);
void open_setup (int flags);
@@ -2149,6 +2169,15 @@ class fhandler_pty_slave: public fhandler_pty_common
copyto (fh);
return fh;
}
+ void set_switch_to_pcon (void);
+ void reset_switch_to_pcon (void);
+ void push_to_pcon_screenbuffer (const char *ptr, size_t len);
+ bool has_master_opened (void);
+ void mask_switch_to_pcon (bool mask)
+ {
+ get_ttyp ()->mask_switch_to_pcon = mask;
+ }
+ void fixup_after_attach (bool native_maybe);
};
#define __ptsname(buf, unit) __small_sprintf ((buf), "/dev/pty%d", (unit))
@@ -2157,17 +2186,17 @@ class fhandler_pty_master: public fhandler_pty_common
int pktmode; // non-zero if pty in a packet mode.
HANDLE master_ctl; // Control socket for handle duplication
cygthread *master_thread; // Master control thread
- HANDLE from_master, to_master;
+ HANDLE from_master, to_master, from_slave, to_slave;
HANDLE echo_r, echo_w;
DWORD dwProcessId; // Owner of master handles
- HANDLE io_handle_cyg, to_master_cyg;
+ HANDLE to_master_cyg, from_master_cyg;
cygthread *master_fwd_thread; // Master forwarding thread
public:
HANDLE get_echo_handle () const { return echo_r; }
- HANDLE& get_handle_cyg () { return io_handle_cyg; }
/* Constructor */
fhandler_pty_master (int);
+ ~fhandler_pty_master ();
DWORD pty_master_thread ();
DWORD pty_master_fwd_thread ();
@@ -2212,6 +2241,8 @@ public:
copyto (fh);
return fh;
}
+
+ bool setup_pseudoconsole (void);
};
class fhandler_dev_null: public fhandler_base
diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc
index 67638055e..997c50d23 100644
--- a/winsup/cygwin/fhandler_console.cc
+++ b/winsup/cygwin/fhandler_console.cc
@@ -1056,6 +1056,19 @@ fhandler_console::close ()
CloseHandle (get_handle ());
CloseHandle (get_output_handle ());
+
+ /* If already attached to pseudo console, don't call free_console () */
+ cygheap_fdenum cfd (false);
+ while (cfd.next () >= 0)
+ if (cfd->get_major () == DEV_PTYM_MAJOR ||
+ cfd->get_major () == DEV_PTYS_MAJOR)
+ {
+ fhandler_pty_common *t =
+ (fhandler_pty_common *) (fhandler_base *) cfd;
+ if (get_console_process_id (t->getHelperProcessId (), true))
+ return 0;
+ }
+
if (!have_execed)
free_console ();
return 0;
@@ -3119,6 +3132,25 @@ fhandler_console::need_invisible ()
return b;
}
+DWORD
+fhandler_console::get_console_process_id (DWORD pid, bool match)
+{
+ DWORD tmp;
+ int num = GetConsoleProcessList (&tmp, 1);
+ DWORD *list = (DWORD *)
+ HeapAlloc (GetProcessHeap (), 0, num * sizeof (DWORD));
+ num = GetConsoleProcessList (list, num);
+ tmp = 0;
+ for (int i=0; i<num; i++)
+ if ((match && list[i] == pid) || (!match && list[i] != pid))
+ {
+ tmp = list[i];
+ //break;
+ }
+ HeapFree (GetProcessHeap (), 0, list);
+ return tmp;
+}
+
DWORD
fhandler_console::__acquire_input_mutex (const char *fn, int ln, DWORD ms)
{
diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
index 312c2d083..dd5ab528a 100644
--- a/winsup/cygwin/fhandler_tty.cc
+++ b/winsup/cygwin/fhandler_tty.cc
@@ -25,6 +25,32 @@ details. */
#include "child_info.h"
#include <asm/socket.h>
#include "cygwait.h"
+#include "tls_pbuf.h"
+
+#define ALWAYS_USE_PCON false
+#define USE_API_HOOK true
+#define USE_OWN_NLS_FUNC true
+
+#if !USE_OWN_NLS_FUNC
+#include "langinfo.h"
+#endif
+
+/* Not yet defined in Mingw-w64 */
+#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
+#define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004
+#endif /* ENABLE_VIRTUAL_TERMINAL_PROCESSING */
+#ifndef DISABLE_NEWLINE_AUTO_RETURN
+#define DISABLE_NEWLINE_AUTO_RETURN 0x0008
+#endif /* DISABLE_NEWLINE_AUTO_RETURN */
+#ifndef PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE
+#define PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE 0x00020016
+#endif /* PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE */
+#ifndef ENABLE_VIRTUAL_TERMINAL_INPUT
+#define ENABLE_VIRTUAL_TERMINAL_INPUT 0x0200
+#endif /* ENABLE_VIRTUAL_TERMINAL_INPUT */
+
+extern "C" int sscanf (const char *, const char *, ...);
+extern "C" int ttyname_r(int, char*, size_t);
#define close_maybe(h) \
do { \
@@ -39,11 +65,227 @@ struct pipe_request {
struct pipe_reply {
HANDLE from_master;
+ HANDLE from_master_cyg;
HANDLE to_master;
HANDLE to_master_cyg;
DWORD error;
};
+static bool pcon_attached[NTTYS];
+static bool isHybrid;
+
+#if USE_API_HOOK
+/* Hook WIN32 API */
+static
+void *hook_api (const char *mname, const char *name, const void *fn)
+{
+ HMODULE hm = GetModuleHandle (mname);
+ PIMAGE_NT_HEADERS pExeNTHdr = PIMAGE_NT_HEADERS (PBYTE (hm)
+ + PIMAGE_DOS_HEADER (hm)->e_lfanew);
+ DWORD importRVA = pExeNTHdr->OptionalHeader.DataDirectory
+ [IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress;
+ PIMAGE_IMPORT_DESCRIPTOR pdfirst =
+ (PIMAGE_IMPORT_DESCRIPTOR) ((char *) hm + importRVA);
+ for (PIMAGE_IMPORT_DESCRIPTOR pd = pdfirst; pd->FirstThunk; pd++)
+ {
+ if (pd->OriginalFirstThunk == 0)
+ continue;
+ PIMAGE_THUNK_DATA pt =
+ (PIMAGE_THUNK_DATA) ((char *) hm + pd->FirstThunk);
+ PIMAGE_THUNK_DATA pn =
+ (PIMAGE_THUNK_DATA) ((char *) hm + pd->OriginalFirstThunk);
+ for (PIMAGE_THUNK_DATA pi = pt; pn->u1.Ordinal; pi++, pn++)
+ {
+ if (IMAGE_SNAP_BY_ORDINAL (pn->u1.Ordinal))
+ continue;
+ PIMAGE_IMPORT_BY_NAME pimp =
+ (PIMAGE_IMPORT_BY_NAME) ((char *) hm + pn->u1.AddressOfData);
+ if (strcmp (name, (char *) pimp->Name) != 0)
+ continue;
+#ifdef __x86_64__
+#define THUNK_FUNC_TYPE ULONGLONG
+#else
+#define THUNK_FUNC_TYPE DWORD
+#endif
+ DWORD ofl = PAGE_READWRITE;
+ if (!VirtualProtect (pi, sizeof (THUNK_FUNC_TYPE), ofl, &ofl))
+ return NULL;
+ void *origfn = (void *) pi->u1.Function;
+ pi->u1.Function = (THUNK_FUNC_TYPE) fn;
+ VirtualProtect (pi, sizeof (THUNK_FUNC_TYPE), ofl, &ofl);
+ return origfn;
+ }
+ }
+ return NULL;
+}
+
+static void
+set_switch_to_pcon (void)
+{
+ cygheap_fdenum cfd (false);
+ while (cfd.next () >= 0)
+ if (cfd->get_major () == DEV_PTYS_MAJOR)
+ {
+ fhandler_base *fh = cfd;
+ fhandler_pty_slave *ptys = (fhandler_pty_slave *) fh;
+ ptys->set_switch_to_pcon ();
+ return;
+ }
+}
+
+#define DEF_HOOK(name) static __typeof__ (name) *name##_Orig
+DEF_HOOK (WriteFile);
+DEF_HOOK (WriteConsoleA);
+DEF_HOOK (WriteConsoleW);
+DEF_HOOK (ReadFile);
+DEF_HOOK (ReadConsoleA);
+DEF_HOOK (ReadConsoleW);
+DEF_HOOK (WriteConsoleOutputA);
+DEF_HOOK (WriteConsoleOutputW);
+DEF_HOOK (WriteConsoleOutputCharacterA);
+DEF_HOOK (WriteConsoleOutputCharacterW);
+DEF_HOOK (WriteConsoleOutputAttribute);
+DEF_HOOK (WriteConsoleInputA);
+DEF_HOOK (WriteConsoleInputW);
+DEF_HOOK (ReadConsoleInputA);
+DEF_HOOK (ReadConsoleInputW);
+DEF_HOOK (PeekConsoleInputA);
+DEF_HOOK (PeekConsoleInputW);
+
+#define CHK_CONSOLE_ACCESS(h) \
+{ \
+ DWORD dummy; \
+ if (!isHybrid && GetConsoleMode (h, &dummy)) \
+ { \
+ isHybrid = true; \
+ set_switch_to_pcon (); \
+ } \
+}
+static BOOL WINAPI
+WriteFile_Hooked
+ (HANDLE h, LPCVOID p, DWORD l, LPDWORD n, LPOVERLAPPED o)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteFile_Orig (h, p, l, n, o);
+}
+static BOOL WINAPI
+WriteConsoleA_Hooked
+ (HANDLE h, LPCVOID p, DWORD l, LPDWORD n, LPVOID o)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleA_Orig (h, p, l, n, o);
+}
+static BOOL WINAPI
+WriteConsoleW_Hooked
+ (HANDLE h, LPCVOID p, DWORD l, LPDWORD n, LPVOID o)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleW_Orig (h, p, l, n, o);
+}
+static BOOL WINAPI
+ReadFile_Hooked
+ (HANDLE h, LPVOID p, DWORD l, LPDWORD n, LPOVERLAPPED o)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return ReadFile_Orig (h, p, l, n, o);
+}
+static BOOL WINAPI
+ReadConsoleA_Hooked
+ (HANDLE h, LPVOID p, DWORD l, LPDWORD n, LPVOID o)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return ReadConsoleA_Orig (h, p, l, n, o);
+}
+static BOOL WINAPI
+ReadConsoleW_Hooked
+ (HANDLE h, LPVOID p, DWORD l, LPDWORD n, LPVOID o)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return ReadConsoleW_Orig (h, p, l, n, o);
+}
+static BOOL WINAPI
+WriteConsoleOutputA_Hooked
+ (HANDLE h, CONST CHAR_INFO *p, COORD s, COORD c, PSMALL_RECT r)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleOutputA_Orig (h, p, s, c, r);
+}
+static BOOL WINAPI
+WriteConsoleOutputW_Hooked
+ (HANDLE h, CONST CHAR_INFO *p, COORD s, COORD c, PSMALL_RECT r)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleOutputW_Orig (h, p, s, c, r);
+}
+static BOOL WINAPI
+WriteConsoleOutputCharacterA_Hooked
+ (HANDLE h, LPCSTR p, DWORD l, COORD c, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleOutputCharacterA_Orig (h, p, l, c, n);
+}
+static BOOL WINAPI
+WriteConsoleOutputCharacterW_Hooked
+ (HANDLE h, LPCWSTR p, DWORD l, COORD c, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleOutputCharacterW_Orig (h, p, l, c, n);
+}
+static BOOL WINAPI
+WriteConsoleOutputAttribute_Hooked
+ (HANDLE h, CONST WORD *a, DWORD l, COORD c, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleOutputAttribute_Orig (h, a, l, c, n);
+}
+static BOOL WINAPI
+WriteConsoleInputA_Hooked
+ (HANDLE h, CONST INPUT_RECORD *r, DWORD l, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleInputA_Orig (h, r, l, n);
+}
+static BOOL WINAPI
+WriteConsoleInputW_Hooked
+ (HANDLE h, CONST INPUT_RECORD *r, DWORD l, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return WriteConsoleInputW_Orig (h, r, l, n);
+}
+static BOOL WINAPI
+ReadConsoleInputA_Hooked
+ (HANDLE h, PINPUT_RECORD r, DWORD l, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return ReadConsoleInputA_Orig (h, r, l, n);
+}
+static BOOL WINAPI
+ReadConsoleInputW_Hooked
+ (HANDLE h, PINPUT_RECORD r, DWORD l, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return ReadConsoleInputW_Orig (h, r, l, n);
+}
+static BOOL WINAPI
+PeekConsoleInputA_Hooked
+ (HANDLE h, PINPUT_RECORD r, DWORD l, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return PeekConsoleInputA_Orig (h, r, l, n);
+}
+static BOOL WINAPI
+PeekConsoleInputW_Hooked
+ (HANDLE h, PINPUT_RECORD r, DWORD l, LPDWORD n)
+{
+ CHK_CONSOLE_ACCESS (h);
+ return PeekConsoleInputW_Orig (h, r, l, n);
+}
+#else /* USE_API_HOOK */
+#define WriteFile_Orig 0
+#define ReadFile_Orig 0
+#define PeekConsoleInputA_Orig 0
+#endif /* USE_API_HOOK */
+
bool
bytes_available (DWORD& n, HANDLE h)
{
@@ -67,7 +309,7 @@ bytes_available (DWORD& n, HANDLE h)
bool
fhandler_pty_common::bytes_available (DWORD &n)
{
- return ::bytes_available (n, get_handle ());
+ return ::bytes_available (n, get_handle_cyg ());
}
#ifdef DEBUGGING
@@ -139,14 +381,35 @@ fhandler_pty_common::__release_output_mutex (const char *fn, int ln)
#endif
}
+static bool switch_to_pcon_prev;
+
+bool
+fhandler_pty_common::check_switch_to_pcon (void)
+{
+ bool switch_to_pcon_now = get_ttyp ()->switch_to_pcon;
+ if (!isHybrid && !switch_to_pcon_prev && switch_to_pcon_now)
+ {
+ Sleep (40);
+ /* Check again */
+ switch_to_pcon_now = get_ttyp ()->switch_to_pcon;
+ if (switch_to_pcon_now)
+ switch_to_pcon_prev = true;
+ }
+ else
+ switch_to_pcon_prev = switch_to_pcon_now;
+ return switch_to_pcon_prev;
+}
+
/* Process pty input. */
void
fhandler_pty_master::doecho (const void *str, DWORD len)
{
ssize_t towrite = len;
+ acquire_output_mutex (INFINITE);
if (!process_opost_output (echo_w, str, towrite, true))
termios_printf ("Write to echo pipe failed, %E");
+ release_output_mutex ();
}
int
@@ -235,7 +498,7 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
/* Check echo pipe first. */
if (::bytes_available (echo_cnt, echo_r) && echo_cnt > 0)
break;
- if (!::bytes_available (n, get_handle_cyg ()))
+ if (!bytes_available (n))
goto err;
if (n)
break;
@@ -296,7 +559,7 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
goto err;
}
}
- else if (!ReadFile (get_handle_cyg (), outbuf, rlen, &n, NULL))
+ else if (!ReadFile (get_handle (), outbuf, rlen, &n, NULL))
{
termios_printf ("ReadFile failed, %E");
goto err;
@@ -331,20 +594,57 @@ out:
/* pty slave stuff */
fhandler_pty_slave::fhandler_pty_slave (int unit)
- : fhandler_pty_common (), inuse (NULL), output_handle_cyg (NULL)
+ : fhandler_pty_common (), inuse (NULL), output_handle_cyg (NULL),
+ io_handle_cyg (NULL)
{
if (unit >= 0)
dev ().parse (DEV_PTYS_MAJOR, unit);
}
+fhandler_pty_slave::~fhandler_pty_slave ()
+{
+ if (!get_ttyp ())
+ {
+ /* Why it comes here? */
+ init_console_handler (false);
+ FreeConsole ();
+ pcon_attached[get_minor ()] = false;
+ }
+ else if (getPseudoConsole ())
+ {
+ int used = 0;
+ cygheap_fdenum cfd (false);
+ while (cfd.next () >= 0)
+ if (cfd->get_major () == DEV_PTYS_MAJOR &&
+ cfd->get_minor () == get_minor ())
+ used ++;
+
+ /* Call FreeConsole() if no pty slave on this pty is
+ opened and the process is attached to the pseudo
+ console corresponding to this pty. This is needed
+ to make GNU screen and tmux work in Windows 10 1903. */
+ if (used == 0 &&
+ fhandler_console::get_console_process_id (getHelperProcessId (),
+ true))
+ {
+ init_console_handler (false);
+ FreeConsole ();
+ pcon_attached[get_minor ()] = false;
+ }
+ }
+}
+
int
fhandler_pty_slave::open (int flags, mode_t)
{
- HANDLE pty_owner, from_master_local, to_master_local, to_master_cyg_local;
+ HANDLE pty_owner;
+ HANDLE from_master_local, from_master_cyg_local;
+ HANDLE to_master_local, to_master_cyg_local;
HANDLE *handles[] =
{
&from_master_local, &input_available_event, &input_mutex, &inuse,
&output_mutex, &to_master_local, &pty_owner, &to_master_cyg_local,
+ &from_master_cyg_local,
NULL
};
@@ -396,7 +696,7 @@ fhandler_pty_slave::open (int flags, mode_t)
release_output_mutex ();
}
- if (!get_ttyp ()->from_master () ||
+ if (!get_ttyp ()->from_master () || !get_ttyp ()->from_master_cyg () ||
!get_ttyp ()->to_master () || !get_ttyp ()->to_master_cyg ())
{
errmsg = "pty handles have been closed";
@@ -441,6 +741,15 @@ fhandler_pty_slave::open (int flags, mode_t)
__seterrno ();
goto err_no_msg;
}
+ if (!DuplicateHandle (pty_owner, get_ttyp ()->from_master_cyg (),
+ GetCurrentProcess (), &from_master_cyg_local, 0, TRUE,
+ DUPLICATE_SAME_ACCESS))
+ {
+ termios_printf ("can't duplicate input from %u/%p, %E",
+ get_ttyp ()->master_pid, get_ttyp ()->from_master_cyg ());
+ __seterrno ();
+ goto err_no_msg;
+ }
if (!DuplicateHandle (pty_owner, get_ttyp ()->to_master (),
GetCurrentProcess (), &to_master_local, 0, TRUE,
DUPLICATE_SAME_ACCESS))
@@ -474,9 +783,11 @@ fhandler_pty_slave::open (int flags, mode_t)
goto err;
}
from_master_local = repl.from_master;
+ from_master_cyg_local = repl.from_master_cyg;
to_master_local = repl.to_master;
to_master_cyg_local = repl.to_master_cyg;
- if (!from_master_local || !to_master_local || !to_master_cyg_local)
+ if (!from_master_local || !from_master_cyg_local ||
+ !to_master_local || !to_master_cyg_local)
{
SetLastError (repl.error);
errmsg = "error duplicating pipes, %E";
@@ -484,17 +795,21 @@ fhandler_pty_slave::open (int flags, mode_t)
}
}
VerifyHandle (from_master_local);
+ VerifyHandle (from_master_cyg_local);
VerifyHandle (to_master_local);
VerifyHandle (to_master_cyg_local);
termios_printf ("duplicated from_master %p->%p from pty_owner",
get_ttyp ()->from_master (), from_master_local);
+ termios_printf ("duplicated from_master_cyg %p->%p from pty_owner",
+ get_ttyp ()->from_master_cyg (), from_master_cyg_local);
termios_printf ("duplicated to_master %p->%p from pty_owner",
get_ttyp ()->to_master (), to_master_local);
termios_printf ("duplicated to_master_cyg %p->%p from pty_owner",
get_ttyp ()->to_master_cyg (), to_master_cyg_local);
set_handle (from_master_local);
+ set_handle_cyg (from_master_cyg_local);
set_output_handle (to_master_local);
set_output_handle_cyg (to_master_cyg_local);
@@ -540,6 +855,26 @@ fhandler_pty_slave::cleanup ()
int
fhandler_pty_slave::close ()
{
+#if 0
+ if (getPseudoConsole ())
+ {
+ INPUT_RECORD inp[128];
+ DWORD n;
+ PeekFunc =
+ PeekConsoleInputA_Orig ? PeekConsoleInputA_Orig : PeekConsoleInput;
+ PeekFunc (get_handle (), inp, 128, &n);
+ bool pipe_empty = true;
+ while (n-- > 0)
+ if (inp[n].EventType == KEY_EVENT && inp[n].Event.KeyEvent.bKeyDown)
+ pipe_empty = false;
+ if (pipe_empty)
+ {
+ /* Flush input buffer */
+ size_t len = UINT_MAX;
+ read (NULL, len);
+ }
+ }
+#endif
termios_printf ("closing last open %s handle", ttyname ());
if (inuse && !CloseHandle (inuse))
termios_printf ("CloseHandle (inuse), %E");
@@ -548,11 +883,16 @@ fhandler_pty_slave::close ()
if (!ForceCloseHandle (get_output_handle_cyg ()))
termios_printf ("CloseHandle (get_output_handle_cyg ()<%p>), %E",
get_output_handle_cyg ());
+ if (!ForceCloseHandle (get_handle_cyg ()))
+ termios_printf ("CloseHandle (get_handle_cyg ()<%p>), %E",
+ get_handle_cyg ());
if ((unsigned) myself->ctty == FHDEV (DEV_PTYS_MAJOR, get_minor ()))
fhandler_console::free_console (); /* assumes that we are the last pty closer */
fhandler_pty_common::close ();
if (!ForceCloseHandle (output_mutex))
termios_printf ("CloseHandle (output_mutex<%p>), %E", output_mutex);
+ if (pcon_attached[get_minor ()])
+ get_ttyp ()->num_pcon_attached_slaves --;
return 0;
}
@@ -596,6 +936,215 @@ fhandler_pty_slave::init (HANDLE h, DWORD a, mode_t)
return ret;
}
+void
+fhandler_pty_slave::set_switch_to_pcon (void)
+{
+ if (!pcon_attached[get_minor ()])
+ {
+ isHybrid = false;
+ return;
+ }
+ if (!isHybrid)
+ {
+ reset_switch_to_pcon ();
+ return;
+ }
+ if (!get_ttyp ()->switch_to_pcon)
+ {
+ Sleep (20);
+ if (get_ttyp ()->pcon_pid == 0 ||
+ kill (get_ttyp ()->pcon_pid, 0) != 0)
+ get_ttyp ()->pcon_pid = myself->pid;
+ get_ttyp ()->switch_to_pcon = true;
+ }
+}
+
+void
+fhandler_pty_slave::reset_switch_to_pcon (void)
+{
+ if (ALWAYS_USE_PCON)
+ return;
+ if (isHybrid)
+ {
+ set_switch_to_pcon ();
+ return;
+ }
+ if (get_ttyp ()->pcon_pid &&
+ get_ttyp ()->pcon_pid != myself->pid &&
+ kill (get_ttyp ()->pcon_pid, 0) == 0)
+ /* There is a process which is grabbing pseudo console. */
+ return;
+ if (get_ttyp ()->switch_to_pcon &&
+ get_ttyp ()->pcon_pid != myself->pid)
+ {
+ DWORD mode;
+ GetConsoleMode (get_handle (), &mode);
+ SetConsoleMode (get_handle (), mode & ~ENABLE_ECHO_INPUT);
+ Sleep (60); /* Wait for pty_master_fwd_thread() */
+ }
+ get_ttyp ()->pcon_pid = 0;
+ get_ttyp ()->switch_to_pcon = false;
+}
+
+void
+fhandler_pty_slave::push_to_pcon_screenbuffer (const char *ptr, size_t len)
+{
+ DWORD pidRestore = 0;
+ if (!fhandler_console::get_console_process_id (getHelperProcessId (), true))
+ if (pcon_attached[get_minor ()])
+ {
+ Sleep (20);
+ /* Check again */
+ if (!fhandler_console::get_console_process_id
+ (getHelperProcessId (), true))
+ {
+ system_printf ("pty%d: pcon_attach mismatch?????? (%p)",
+ get_minor (), this);
+ //pcon_attached[get_minor ()] = false;
+ return;
+ }
+ }
+ /* If not attached pseudo console yet, try to attach temporally. */
+ if (!pcon_attached[get_minor ()])
+ {
+ if (has_master_opened ())
+ return;
+
+ pidRestore =
+ fhandler_console::get_console_process_id (GetCurrentProcessId (),
+ false);
+ /* If pidRestore is not set, give up to push. */
+ if (!pidRestore)
+ return;
+
+ FreeConsole ();
+ if (!AttachConsole (getHelperProcessId ()))
+ {
+ system_printf ("pty%d: AttachConsole(%d) failed. (%p) %08lx",
+ get_minor (), getHelperProcessId (),
+ this, GetLastError ());
+ goto detach;
+ }
+ }
+ char *buf;
+ size_t nlen;
+ DWORD origCP;
+ origCP = GetConsoleOutputCP ();
+ SetConsoleOutputCP (get_ttyp ()->TermCodePage);
+ /* Just copy */
+ buf = (char *) HeapAlloc (GetProcessHeap (), 0, len);
+ memcpy (buf, (char *)ptr, len);
+ nlen = len;
+ char *p0, *p1;
+ p0 = p1 = buf;
+ /* Remove alternate screen buffer drawing */
+ while (p0 && p1)
+ {
+ if (!get_ttyp ()->screen_alternated)
+ {
+ /* Check switching to alternate screen buffer */
+ p0 = (char *) memmem (p1, nlen - (p1-buf), "\033[?1049h", 8);
+ if (p0)
+ {
+ //p0 += 8;
+ get_ttyp ()->screen_alternated = true;
+ }
+ }
+ if (get_ttyp ()->screen_alternated)
+ {
+ /* Check switching to main screen buffer */
+ p1 = (char *) memmem (p0, nlen - (p0-buf), "\033[?1049l", 8);
+ if (p1)
+ {
+ p1 += 8;
+ get_ttyp ()->screen_alternated = false;
+ memmove (p0, p1, buf+nlen - p1);
+ nlen -= p1 - p0;
+ }
+ else
+ nlen = p0 - buf;
+ }
+ }
+ if (!nlen) /* Nothing to be synchronized */
+ goto cleanup;
+ if (check_switch_to_pcon ())
+ goto cleanup;
+ /* Remove ESC sequence which returns results to console
+ input buffer. Without this, cursor position report
+ is put into the input buffer as a garbage. */
+ /* Remove ESC sequence to report cursor position. */
+ while ((p0 = (char *) memmem (buf, nlen, "\033[6n", 4)))
+ {
+ memmove (p0, p0+4, nlen - (p0+4 - buf));
+ nlen -= 4;
+ }
+ /* Remove ESC sequence to report terminal identity. */
+ while ((p0 = (char *) memmem (buf, nlen, "\033[0c", 4)))
+ {
+ memmove (p0, p0+4, nlen - (p0+4 - buf));
+ nlen -= 4;
+ }
+ DWORD dwMode, flags;
+ flags = ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ GetConsoleMode (get_output_handle (), &dwMode);
+ if (!(get_ttyp ()->ti.c_oflag & OPOST) ||
+ !(get_ttyp ()->ti.c_oflag & ONLCR))
+ flags |= DISABLE_NEWLINE_AUTO_RETURN;
+ SetConsoleMode (get_output_handle (), dwMode | flags);
+ char *p;
+ p = buf;
+ DWORD wLen, written;
+ written = 0;
+ int retry_count;
+ retry_count = 0;
+ BOOL (WINAPI *WriteFunc)
+ (HANDLE, LPCVOID, DWORD, LPDWORD, LPOVERLAPPED);
+ WriteFunc = WriteFile_Orig ? WriteFile_Orig : WriteFile;
+ while (written < nlen)
+ {
+ if (!WriteFunc (get_output_handle (), p, nlen - written, &wLen, NULL))
+ {
+ termios_printf ("WriteFile failed, %E");
+ this->open (0, 0); /* Re-open handles */
+ /* Fix pseudo console window size */
+ struct winsize win;
+ this->ioctl (TIOCGWINSZ, &win);
+ this->ioctl (TIOCSWINSZ, &win);
+ if (++retry_count > 3)
+ break;
+ }
+ written += wLen;
+ p += wLen;
+ }
+ /* Detach from pseudo console and resume. */
+ SetConsoleMode (get_output_handle (), dwMode);
+cleanup:
+ SetConsoleOutputCP (origCP);
+ HeapFree (GetProcessHeap (), 0, buf);
+detach:
+ if (!pcon_attached[get_minor ()])
+ {
+ FreeConsole ();
+ if (!AttachConsole (pidRestore))
+ {
+ system_printf ("pty%d: AttachConsole(%d) failed. (%p) %08lx",
+ get_minor (), pidRestore, this, GetLastError ());
+ pcon_attached[get_minor ()] = false;
+ }
+ }
+}
+
+bool
+fhandler_pty_slave::has_master_opened (void)
+{
+ cygheap_fdenum cfd (false);
+ while (cfd.next () >= 0)
+ if (cfd->get_major () == DEV_PTYM_MAJOR &&
+ cfd->get_minor () == get_minor ())
+ return true;
+ return false;
+}
+
ssize_t __stdcall
fhandler_pty_slave::write (const void *ptr, size_t len)
{
@@ -609,7 +1158,51 @@ fhandler_pty_slave::write (const void *ptr, size_t len)
push_process_state process_state (PID_TTYOU);
- if (!process_opost_output (get_output_handle_cyg (), ptr, towrite, false))
+ reset_switch_to_pcon ();
+
+ char *buf;
+ ssize_t nlen;
+ UINT targetCodePage = (check_switch_to_pcon ()) ?
+ GetConsoleOutputCP () : get_ttyp ()->TermCodePage;
+ if (targetCodePage != get_ttyp ()->TermCodePage)
+ {
+ size_t wlen =
+ MultiByteToWideChar (get_ttyp ()->TermCodePage, 0,
+ (char *)ptr, len, NULL, 0);
+ wchar_t *wbuf = (wchar_t *)
+ HeapAlloc (GetProcessHeap (), 0, wlen * sizeof (wchar_t));
+ wlen =
+ MultiByteToWideChar (get_ttyp ()->TermCodePage, 0,
+ (char *)ptr, len, wbuf, wlen);
+ nlen = WideCharToMultiByte (targetCodePage, 0,
+ wbuf, wlen, NULL, 0, NULL, NULL);
+ buf = (char *) HeapAlloc (GetProcessHeap (), 0, nlen);
+ nlen = WideCharToMultiByte (targetCodePage, 0,
+ wbuf, wlen, buf, nlen, NULL, NULL);
+ HeapFree (GetProcessHeap (), 0, wbuf);
+ }
+ else
+ {
+ /* Just copy */
+ buf = (char *) HeapAlloc (GetProcessHeap (), 0, len);
+ memcpy (buf, (char *)ptr, len);
+ nlen = len;
+ }
+
+ DWORD dwMode, flags;
+ flags = ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ if (!(get_ttyp ()->ti.c_oflag & OPOST) ||
+ !(get_ttyp ()->ti.c_oflag & ONLCR))
+ flags |= DISABLE_NEWLINE_AUTO_RETURN;
+ if (check_switch_to_pcon ())
+ {
+ GetConsoleMode (get_output_handle (), &dwMode);
+ SetConsoleMode (get_output_handle (), dwMode | flags);
+ }
+ HANDLE to =
+ check_switch_to_pcon () ? get_output_handle () : get_output_handle_cyg ();
+ acquire_output_mutex (INFINITE);
+ if (!process_opost_output (to, buf, nlen, false))
{
DWORD err = GetLastError ();
termios_printf ("WriteFile failed, %E");
@@ -623,12 +1216,27 @@ fhandler_pty_slave::write (const void *ptr, size_t len)
}
towrite = -1;
}
+ release_output_mutex ();
+ HeapFree (GetProcessHeap (), 0, buf);
+ flags = ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ if (check_switch_to_pcon ())
+ SetConsoleMode (get_output_handle (), dwMode | flags);
+
+ /* Push slave output to pseudo console screen buffer */
+ if (getPseudoConsole ())
+ {
+ acquire_output_mutex (INFINITE);
+ push_to_pcon_screenbuffer ((char *)ptr, len);
+ release_output_mutex ();
+ }
+
return towrite;
}
void __reg3
fhandler_pty_slave::read (void *ptr, size_t& len)
{
+ char *ptr0 = (char *)ptr;
ssize_t totalread = 0;
int vmin = 0;
int vtime = 0; /* Initialized to prevent -Wuninitialized warning */
@@ -644,10 +1252,17 @@ fhandler_pty_slave::read (void *ptr, size_t& len)
return;
}
- termios_printf ("read(%p, %lu) handle %p", ptr, len, get_handle ());
+ termios_printf ("read(%p, %lu) handle %p", ptr, len, get_handle_cyg ());
push_process_state process_state (PID_TTYIN);
+ if (ptr) /* Indicating not tcflush(). */
+ {
+ reset_switch_to_pcon ();
+ if (get_ttyp ()->pcon_pid != myself->pid)
+ mask_switch_to_pcon (true);
+ }
+
if (is_nonblocking () || !ptr) /* Indicating tcflush(). */
time_to_wait = 0;
else if ((get_ttyp ()->ti.c_lflag & ICANON))
@@ -746,6 +1361,53 @@ fhandler_pty_slave::read (void *ptr, size_t& len)
}
goto out;
}
+ if (check_switch_to_pcon () &&
+ !get_ttyp ()->mask_switch_to_pcon)
+ {
+ DWORD dwMode;
+ GetConsoleMode (get_handle (), &dwMode);
+ DWORD flags = ENABLE_VIRTUAL_TERMINAL_INPUT;
+ if (get_ttyp ()->ti.c_lflag & ECHO)
+ flags |= ENABLE_ECHO_INPUT;
+ if (get_ttyp ()->ti.c_lflag & ICANON)
+ flags |= ENABLE_LINE_INPUT;
+ if (flags & ENABLE_ECHO_INPUT && !(flags & ENABLE_LINE_INPUT))
+ flags &= ~ENABLE_ECHO_INPUT;
+ if ((get_ttyp ()->ti.c_lflag & ISIG) &&
+ !(get_ttyp ()->ti.c_iflag & IGNBRK))
+ flags |= ENABLE_PROCESSED_INPUT;
+ if (dwMode != flags)
+ SetConsoleMode (get_handle (), flags);
+ /* Read get_handle() instad of get_handle_cyg() */
+ BOOL (WINAPI *ReadFunc)
+ (HANDLE, LPVOID, DWORD, LPDWORD, LPOVERLAPPED);
+ ReadFunc = ReadFile_Orig ? ReadFile_Orig : ReadFile;
+ DWORD rlen;
+ if (!ReadFunc (get_handle (), ptr, len, &rlen, NULL))
+ {
+ termios_printf ("read failed, %E");
+ ReleaseMutex (input_mutex);
+ set_errno (EIO);
+ totalread = -1;
+ goto out;
+ }
+ INPUT_RECORD inp[128];
+ DWORD n;
+ BOOL (WINAPI *PeekFunc)
+ (HANDLE, PINPUT_RECORD, DWORD, LPDWORD);
+ PeekFunc =
+ PeekConsoleInputA_Orig ? PeekConsoleInputA_Orig : PeekConsoleInput;
+ PeekFunc (get_handle (), inp, 128, &n);
+ bool pipe_empty = true;
+ while (n-- > 0)
+ if (inp[n].EventType == KEY_EVENT && inp[n].Event.KeyEvent.bKeyDown)
+ pipe_empty = false;
+ if (pipe_empty)
+ ResetEvent (input_available_event);
+ ReleaseMutex (input_mutex);
+ len = rlen;
+ return;
+ }
if (!bytes_available (bytes_in_pipe))
{
ReleaseMutex (input_mutex);
@@ -757,6 +1419,7 @@ fhandler_pty_slave::read (void *ptr, size_t& len)
if (ptr && !bytes_in_pipe && !vmin && !time_to_wait)
{
ReleaseMutex (input_mutex);
+ mask_switch_to_pcon (false);
len = (size_t) bytes_in_pipe;
return;
}
@@ -777,7 +1440,7 @@ fhandler_pty_slave::read (void *ptr, size_t& len)
if (readlen)
{
termios_printf ("reading %lu bytes (vtime %d)", readlen, vtime);
- if (!ReadFile (get_handle (), buf, readlen, &n, NULL))
+ if (!ReadFile (get_handle_cyg (), buf, readlen, &n, NULL))
{
termios_printf ("read failed, %E");
ReleaseMutex (input_mutex);
@@ -861,6 +1524,16 @@ fhandler_pty_slave::read (void *ptr, size_t& len)
out:
termios_printf ("%d = read(%p, %lu)", totalread, ptr, len);
len = (size_t) totalread;
+#if 1 /* Experimenta code */
+ /* Push slave read as echo to pseudo console screen buffer. */
+ if (getPseudoConsole () && ptr0 && (get_ttyp ()->ti.c_lflag & ECHO))
+ {
+ acquire_output_mutex (INFINITE);
+ push_to_pcon_screenbuffer (ptr0, len);
+ release_output_mutex ();
+ }
+#endif
+ mask_switch_to_pcon (false);
}
int
@@ -890,6 +1563,7 @@ fhandler_pty_master::dup (fhandler_base *child, int)
int
fhandler_pty_slave::tcgetattr (struct termios *t)
{
+ reset_switch_to_pcon ();
*t = get_ttyp ()->ti;
return 0;
}
@@ -897,6 +1571,7 @@ fhandler_pty_slave::tcgetattr (struct termios *t)
int
fhandler_pty_slave::tcsetattr (int, const struct termios *t)
{
+ reset_switch_to_pcon ();
acquire_output_mutex (INFINITE);
get_ttyp ()->ti = *t;
release_output_mutex ();
@@ -908,7 +1583,9 @@ fhandler_pty_slave::tcflush (int queue)
{
int ret = 0;
- termios_printf ("tcflush(%d) handle %p", queue, get_handle ());
+ termios_printf ("tcflush(%d) handle %p", queue, get_handle_cyg ());
+
+ reset_switch_to_pcon ();
if (queue == TCIFLUSH || queue == TCIOFLUSH)
{
@@ -929,6 +1606,7 @@ int
fhandler_pty_slave::ioctl (unsigned int cmd, void *arg)
{
termios_printf ("ioctl (%x)", cmd);
+ reset_switch_to_pcon ();
int res = fhandler_termios::ioctl (cmd, arg);
if (res <= 0)
return res;
@@ -995,6 +1673,64 @@ fhandler_pty_slave::ioctl (unsigned int cmd, void *arg)
get_ttyp ()->winsize = get_ttyp ()->arg.winsize;
break;
case TIOCSWINSZ:
+ if (getPseudoConsole ())
+ {
+ /* If not attached pseudo console yet, try to attach
+ temporally. */
+ DWORD pidRestore = 0;
+ if (!pcon_attached[get_minor ()])
+ {
+ if (has_master_opened () && get_ttyp ()->attach_pcon_in_fork)
+ goto resize_cyg;
+
+ pidRestore = fhandler_console::get_console_process_id
+ (GetCurrentProcessId (), false);
+
+ /* This happens at mintty startup if fhandler_console::
+ need_invisible() is called in stdio_init() in dtable.cc */
+ if (!pidRestore) /* Give up to resize pseudo console */
+ goto resize_cyg;
+
+ FreeConsole ();
+ if (!AttachConsole (getHelperProcessId ()))
+ {
+ system_printf ("pty%d: AttachConsole(%d) failed. (%p) %08lx",
+ get_minor(), getHelperProcessId (),
+ this, GetLastError ());
+ goto cleanup;
+ }
+ }
+ COORD size;
+ size.X = ((struct winsize *) arg)->ws_col;
+ size.Y = ((struct winsize *) arg)->ws_row;
+ CONSOLE_SCREEN_BUFFER_INFO csbi;
+ if (GetConsoleScreenBufferInfo (get_output_handle (), &csbi))
+ if (size.X == csbi.srWindow.Right - csbi.srWindow.Left + 1 &&
+ size.Y == csbi.srWindow.Bottom - csbi.srWindow.Top + 1)
+ goto cleanup;
+ if (!SetConsoleScreenBufferSize (get_output_handle (), size))
+ goto cleanup;
+ SMALL_RECT rect;
+ rect.Left = 0;
+ rect.Top = 0;
+ rect.Right = size.X-1;
+ rect.Bottom = size.Y-1;
+ SetConsoleWindowInfo (get_output_handle (), TRUE, &rect);
+cleanup:
+ /* Detach from pseudo console and resume. */
+ if (pidRestore)
+ {
+ FreeConsole ();
+ if (!AttachConsole (pidRestore))
+ {
+ system_printf ("pty%d: AttachConsole(%d) failed. (%p) %08lx",
+ get_minor (), pidRestore,
+ this, GetLastError ());
+ pcon_attached[get_minor ()] = false;
+ }
+ }
+ }
+resize_cyg:
if (get_ttyp ()->winsize.ws_row != ((struct winsize *) arg)->ws_row
|| get_ttyp ()->winsize.ws_col != ((struct winsize *) arg)->ws_col)
{
@@ -1228,8 +1964,9 @@ errout:
fhandler_pty_master::fhandler_pty_master (int unit)
: fhandler_pty_common (), pktmode (0), master_ctl (NULL),
master_thread (NULL), from_master (NULL), to_master (NULL),
- echo_r (NULL), echo_w (NULL), dwProcessId (0),
- io_handle_cyg (NULL), to_master_cyg (NULL), master_fwd_thread (NULL)
+ from_slave (NULL), to_slave (NULL), echo_r (NULL), echo_w (NULL),
+ dwProcessId (0), to_master_cyg (NULL), from_master_cyg (NULL),
+ master_fwd_thread (NULL)
{
if (unit >= 0)
dev ().parse (DEV_PTYM_MAJOR, unit);
@@ -1241,6 +1978,15 @@ fhandler_pty_master::fhandler_pty_master (int unit)
set_name ("/dev/ptmx");
}
+fhandler_pty_master::~fhandler_pty_master ()
+{
+ /* Without this wait, helper process for pseudo console
+ sometimes remains running after the pty session is
+ closed. The reason is not clear. */
+ if (to_master && from_master)
+ Sleep (20);
+}
+
int
fhandler_pty_master::open (int flags, mode_t)
{
@@ -1269,13 +2015,15 @@ fhandler_pty_common::lseek (off_t, int)
int
fhandler_pty_common::close ()
{
- termios_printf ("pty%d <%p,%p> closing", get_minor (), get_handle (), get_output_handle ());
+ termios_printf ("pty%d <%p,%p> closing",
+ get_minor (), get_handle (), get_output_handle ());
if (!ForceCloseHandle (input_mutex))
termios_printf ("CloseHandle (input_mutex<%p>), %E", input_mutex);
if (!ForceCloseHandle1 (get_handle (), from_pty))
termios_printf ("CloseHandle (get_handle ()<%p>), %E", get_handle ());
if (!ForceCloseHandle1 (get_output_handle (), to_pty))
- termios_printf ("CloseHandle (get_output_handle ()<%p>), %E", get_output_handle ());
+ termios_printf ("CloseHandle (get_output_handle ()<%p>), %E",
+ get_output_handle ());
return 0;
}
@@ -1285,7 +2033,8 @@ fhandler_pty_master::cleanup ()
{
report_tty_counts (this, "closing master", "");
if (archetype)
- from_master = to_master = to_master_cyg = NULL;
+ from_master = from_master_cyg =
+ to_master = to_master_cyg = from_slave = to_slave = NULL;
fhandler_base::cleanup ();
}
@@ -1294,9 +2043,11 @@ fhandler_pty_master::close ()
{
OBJECT_BASIC_INFORMATION obi;
NTSTATUS status;
+ pid_t master_pid_tmp = get_ttyp ()->master_pid;
- termios_printf ("closing from_master(%p)/to_master(%p)/to_master_cyg(%p) since we own them(%u)",
- from_master, to_master, to_master_cyg, dwProcessId);
+ termios_printf ("closing from_master(%p)/from_master_cyg(%p)/to_master(%p)/to_master_cyg(%p) since we own them(%u)",
+ from_master, from_master_cyg,
+ to_master, to_master_cyg, dwProcessId);
if (cygwin_finished_initializing)
{
if (master_ctl && get_ttyp ()->master_pid == myself->pid)
@@ -1334,9 +2085,30 @@ fhandler_pty_master::close ()
termios_printf ("CloseHandle (output_mutex<%p>), %E", output_mutex);
if (!NT_SUCCESS (status))
debug_printf ("NtQueryObject: %y", status);
- else if (obi.HandleCount == 1)
+ else if (obi.HandleCount == (getPseudoConsole () ? 2 : 1))
+ /* Helper process has inherited one. */
{
termios_printf("Closing last master of pty%d", get_minor ());
+ /* Close Pseudo Console */
+ if (getPseudoConsole ())
+ {
+ /* Terminate helper process */
+ SetEvent (get_ttyp ()->hHelperGoodbye);
+ WaitForSingleObject (get_ttyp ()->hHelperProcess, INFINITE);
+ /* FIXME: Pseudo console can be accessed via its handle
+ only in the process which created it. What else can we do? */
+ if (master_pid_tmp == myself->pid)
+ {
+ /* Release pseudo console */
+ HMODULE hModule = GetModuleHandle ("kernel32.dll");
+ FARPROC func = GetProcAddress (hModule, "ClosePseudoConsole");
+ VOID (WINAPI *ClosePseudoConsole) (HPCON) = NULL;
+ ClosePseudoConsole = (VOID (WINAPI *) (HPCON)) func;
+ ClosePseudoConsole (getPseudoConsole ());
+ }
+ get_ttyp ()->hPseudoConsole = NULL;
+ get_ttyp ()->switch_to_pcon = false;
+ }
if (get_ttyp ()->getsid () > 0)
kill (get_ttyp ()->getsid (), SIGHUP);
SetEvent (input_available_event);
@@ -1344,22 +2116,31 @@ fhandler_pty_master::close ()
if (!ForceCloseHandle (from_master))
termios_printf ("error closing from_master %p, %E", from_master);
+ if (from_master_cyg != from_master) /* Avoid double close. */
+ if (!ForceCloseHandle (from_master_cyg))
+ termios_printf ("error closing from_master_cyg %p, %E", from_master_cyg);
if (!ForceCloseHandle (to_master))
termios_printf ("error closing to_master %p, %E", to_master);
from_master = to_master = NULL;
- if (!ForceCloseHandle (get_handle_cyg ()))
- termios_printf ("error closing io_handle_cyg %p, %E", get_handle_cyg ());
+ if (!ForceCloseHandle (from_slave))
+ termios_printf ("error closing from_slave %p, %E", from_slave);
+ from_slave = NULL;
if (!ForceCloseHandle (to_master_cyg))
termios_printf ("error closing to_master_cyg %p, %E", to_master_cyg);
- get_handle_cyg () = to_master_cyg = NULL;
+ to_master_cyg = from_master_cyg = NULL;
ForceCloseHandle (echo_r);
ForceCloseHandle (echo_w);
echo_r = echo_w = NULL;
+ if (to_slave)
+ ForceCloseHandle (to_slave);
+ to_slave = NULL;
if (have_execed || get_ttyp ()->master_pid != myself->pid)
- termios_printf ("not clearing: %d, master_pid %d", have_execed, get_ttyp ()->master_pid);
+ termios_printf ("not clearing: %d, master_pid %d",
+ have_execed, get_ttyp ()->master_pid);
if (!ForceCloseHandle (input_available_event))
- termios_printf ("CloseHandle (input_available_event<%p>), %E", input_available_event);
+ termios_printf ("CloseHandle (input_available_event<%p>), %E",
+ input_available_event);
return 0;
}
@@ -1376,6 +2157,46 @@ fhandler_pty_master::write (const void *ptr, size_t len)
return (ssize_t) bg;
push_process_state process_state (PID_TTYOU);
+
+ /* Write terminal input to to_slave pipe instead of output_handle
+ if current application is native console application. */
+ if (check_switch_to_pcon () &&
+ !get_ttyp ()->mask_switch_to_pcon)
+ {
+ char *buf;
+ size_t nlen;
+
+ if (get_ttyp ()->TermCodePage != CP_UTF8)
+ {
+ size_t wlen =
+ MultiByteToWideChar (get_ttyp ()->TermCodePage, 0,
+ (char *)ptr, len, NULL, 0);
+ wchar_t *wbuf = (wchar_t *)
+ HeapAlloc (GetProcessHeap (), 0, wlen * sizeof (wchar_t));
+ wlen =
+ MultiByteToWideChar (get_ttyp ()->TermCodePage, 0,
+ (char *)ptr, len, wbuf, wlen);
+ nlen = WideCharToMultiByte (CP_UTF8, 0,
+ wbuf, wlen, NULL, 0, NULL, NULL);
+ buf = (char *) HeapAlloc (GetProcessHeap (), 0, nlen);
+ nlen = WideCharToMultiByte (CP_UTF8, 0,
+ wbuf, wlen, buf, nlen, NULL, NULL);
+ HeapFree (GetProcessHeap (), 0, wbuf);
+ }
+ else
+ {
+ /* Just copy */
+ buf = (char *) HeapAlloc (GetProcessHeap (), 0, len);
+ memcpy (buf, (char *)ptr, len);
+ nlen = len;
+ }
+ DWORD wLen;
+ WriteFile (to_slave, buf, nlen, &wLen, NULL);
+ SetEvent (input_available_event);
+ HeapFree (GetProcessHeap (), 0, buf);
+ return len;
+ }
+
line_edit_status status = line_edit (p++, len, ti, &ret);
if (status > line_edit_signalled && status != line_edit_pipe_full)
ret = -1;
@@ -1443,6 +2264,19 @@ fhandler_pty_master::ioctl (unsigned int cmd, void *arg)
*(struct winsize *) arg = get_ttyp ()->winsize;
break;
case TIOCSWINSZ:
+ /* FIXME: Pseudo console can be accessed via its handle
+ only in the process which created it. What else can we do? */
+ if (getPseudoConsole () && get_ttyp ()->master_pid == myself->pid)
+ {
+ HMODULE hModule = GetModuleHandle ("kernel32.dll");
+ FARPROC func = GetProcAddress (hModule, "ResizePseudoConsole");
+ HRESULT (WINAPI *ResizePseudoConsole) (HPCON, COORD) = NULL;
+ ResizePseudoConsole = (HRESULT (WINAPI *) (HPCON, COORD)) func;
+ COORD size;
+ size.X = ((struct winsize *) arg)->ws_col;
+ size.Y = ((struct winsize *) arg)->ws_row;
+ ResizePseudoConsole (getPseudoConsole (), size);
+ }
if (get_ttyp ()->winsize.ws_row != ((struct winsize *) arg)->ws_row
|| get_ttyp ()->winsize.ws_col != ((struct winsize *) arg)->ws_col)
{
@@ -1458,7 +2292,7 @@ fhandler_pty_master::ioctl (unsigned int cmd, void *arg)
case FIONREAD:
{
DWORD n;
- if (!::bytes_available (n, get_handle_cyg ()))
+ if (!bytes_available (n))
{
set_errno (EINVAL);
return -1;
@@ -1494,9 +2328,559 @@ fhandler_pty_common::set_close_on_exec (bool val)
close_on_exec (val);
}
+/* This table is borrowed from mintty: charset.c */
+static const struct {
+ UINT cp;
+ const char *name;
+}
+cs_names[] = {
+ { CP_UTF8, "UTF-8"},
+ { CP_UTF8, "UTF8"},
+ { 20127, "ASCII"},
+ { 20127, "US-ASCII"},
+ { 20127, "ANSI_X3.4-1968"},
+ { 20866, "KOI8-R"},
+ { 20866, "KOI8R"},
+ { 20866, "KOI8"},
+ { 21866, "KOI8-U"},
+ { 21866, "KOI8U"},
+ { 20932, "EUCJP"},
+ { 20932, "EUC-JP"},
+ { 874, "TIS620"},
+ { 874, "TIS-620"},
+ { 932, "SJIS"},
+ { 936, "GBK"},
+ { 936, "GB2312"},
+ { 936, "EUCCN"},
+ { 936, "EUC-CN"},
+ { 949, "EUCKR"},
+ { 949, "EUC-KR"},
+ { 950, "BIG5"},
+ { 0, "NULL"}
+};
+
+static void
+get_locale_from_env (char *locale)
+{
+ const char *env = NULL;
+ char lang[ENCODING_LEN + 1] = {0, }, country[ENCODING_LEN + 1] = {0, };
+ env = getenv ("LC_ALL");
+ if (env == NULL || !*env)
+ env = getenv("LC_CTYPE");
+ if (env == NULL || !*env)
+ env = getenv("LANG");
+ if (env == NULL || !*env)
+ {
+ if (GetLocaleInfo (LOCALE_CUSTOM_UI_DEFAULT,
+ LOCALE_SISO639LANGNAME,
+ lang, sizeof (lang)))
+ GetLocaleInfo (LOCALE_CUSTOM_UI_DEFAULT,
+ LOCALE_SISO3166CTRYNAME,
+ country, sizeof (country));
+ else if (GetLocaleInfo (LOCALE_CUSTOM_DEFAULT,
+ LOCALE_SISO639LANGNAME,
+ lang, sizeof (lang)))
+ GetLocaleInfo (LOCALE_CUSTOM_DEFAULT,
+ LOCALE_SISO3166CTRYNAME,
+ country, sizeof (country));
+ else if (GetLocaleInfo (LOCALE_USER_DEFAULT,
+ LOCALE_SISO639LANGNAME,
+ lang, sizeof (lang)))
+ GetLocaleInfo (LOCALE_USER_DEFAULT,
+ LOCALE_SISO3166CTRYNAME,
+ country, sizeof (country));
+ else if (GetLocaleInfo (LOCALE_SYSTEM_DEFAULT,
+ LOCALE_SISO639LANGNAME,
+ lang, sizeof (lang)))
+ GetLocaleInfo (LOCALE_SYSTEM_DEFAULT,
+ LOCALE_SISO3166CTRYNAME,
+ country, sizeof (country));
+ if (strlen (lang) && strlen (country))
+ __small_sprintf (lang + strlen(lang), "_%s.UTF-8", country);
+ else
+ strcpy (lang , "C.UTF-8");
+ env = lang;
+ }
+ strcpy (locale, env);
+}
+
+#if USE_OWN_NLS_FUNC
+static LCID
+get_langinfo (char *locale_out, char *charset_out)
+{
+ /* Get locale from environment */
+ char new_locale[ENCODING_LEN + 1];
+ get_locale_from_env (new_locale);
+
+ /* The following code is borrowed from __loadlocale() in
+ newlib/libc/locale/locale.c */
+
+ /* At this point a full-featured system would just load the locale
+ specific data from the locale files.
+ What we do here for now is to check the incoming string for correctness.
+ The string must be in one of the allowed locale strings, either
+ one in POSIX-style, or one in the old newlib style to maintain
+ backward compatibility. If the local string is correct, the charset
+ is extracted and stored in ctype_codeset or message_charset
+ dependent on the cateogry. */
+ char *locale = NULL;
+ char charset[ENCODING_LEN + 1];
+ long val = 0;
+ char *end, *c = NULL;
+
+ /* This additional code handles the case that the incoming locale string
+ is not valid. If so, it calls the function __set_locale_from_locale_alias,
+ which is only available on Cygwin right now. The function reads the
+ file /usr/share/locale/locale.alias. The file contains locale aliases
+ and their replacement locale. For instance, the alias "french" is
+ translated to "fr_FR.ISO-8859-1", the alias "thai" is translated to
+ "th_TH.TIS-620". If successful, the function returns with LCID
+ correspoding to the locale. */
+ char tmp_locale[ENCODING_LEN + 1];
+
+restart:
+ if (!locale)
+ locale = new_locale;
+ else if (locale != tmp_locale)
+ {
+ locale = __set_locale_from_locale_alias (locale, tmp_locale);
+ if (!locale)
+ return 0;
+ }
+# define FAIL goto restart
+
+ /* "POSIX" is translated to "C", as on Linux. */
+ if (!strcmp (locale, "POSIX"))
+ strcpy (locale, "C");
+ if (!strcmp (locale, "C")) /* Default "C" locale */
+ strcpy (charset, "ASCII");
+ else if (locale[0] == 'C'
+ && (locale[1] == '-' /* Old newlib style */
+ || locale[1] == '.')) /* Extension for the C locale to allow
+ specifying different charsets while
+ sticking to the C locale in terms
+ of sort order, etc. Proposed in
+ the Debian project. */
+ {
+ char *chp;
+
+ c = locale + 2;
+ strcpy (charset, c);
+ if ((chp = strchr (charset, '@')))
+ /* Strip off modifier */
+ *chp = '\0';
+ c += strlen (charset);
+ }
+ else /* POSIX style */
+ {
+ c = locale;
+
+ /* Don't use ctype macros here, they might be localized. */
+ /* Language */
+ if (c[0] < 'a' || c[0] > 'z'
+ || c[1] < 'a' || c[1] > 'z')
+ FAIL;
+ c += 2;
+ /* Allow three character Language per ISO 639-3 */
+ if (c[0] >= 'a' && c[0] <= 'z')
+ ++c;
+ if (c[0] == '_')
+ {
+ /* Territory */
+ ++c;
+ if (c[0] < 'A' || c[0] > 'Z'
+ || c[1] < 'A' || c[1] > 'Z')
+ FAIL;
+ c += 2;
+ }
+ if (c[0] == '.')
+ {
+ /* Charset */
+ char *chp;
+
+ ++c;
+ strcpy (charset, c);
+ if ((chp = strchr (charset, '@')))
+ /* Strip off modifier */
+ *chp = '\0';
+ c += strlen (charset);
+ }
+ else if (c[0] == '\0' || c[0] == '@')
+ /* End of string or just a modifier */
+
+ /* The Cygwin-only function __set_charset_from_locale checks
+ for the default charset which is connected to the given locale.
+ The function uses Windows functions in turn so it can't be easily
+ adapted to other targets. However, if any other target provides
+ equivalent functionality, preferrably using the same function name
+ it would be sufficient to change the guarding #ifdef. */
+ __set_charset_from_locale (locale, charset);
+ else
+ /* Invalid string */
+ FAIL;
+ }
+ /* We only support this subset of charsets. */
+ switch (charset[0])
+ {
+ case 'U':
+ case 'u':
+ if (strcasecmp (charset, "UTF-8") && strcasecmp (charset, "UTF8"))
+ FAIL;
+ strcpy (charset, "UTF-8");
+ break;
+ case 'E':
+ case 'e':
+ if (strncasecmp (charset, "EUC", 3))
+ FAIL;
+ c = charset + 3;
+ if (*c == '-')
+ ++c;
+ if (!strcasecmp (c, "JP"))
+ strcpy (charset, "EUCJP");
+ /* Newlib does neither provide EUC-KR nor EUC-CN, and Cygwin's
+ implementation requires Windows support. */
+ else if (!strcasecmp (c, "KR"))
+ strcpy (charset, "EUCKR");
+ else if (!strcasecmp (c, "CN"))
+ strcpy (charset, "EUCCN");
+ else
+ FAIL;
+ break;
+ case 'S':
+ case 's':
+ if (strcasecmp (charset, "SJIS"))
+ FAIL;
+ strcpy (charset, "SJIS");
+ break;
+ case 'I':
+ case 'i':
+ /* Must be exactly one of ISO-8859-1, [...] ISO-8859-16, except for
+ ISO-8859-12. This code also recognizes the aliases without dashes. */
+ if (strncasecmp (charset, "ISO", 3))
+ FAIL;
+ c = charset + 3;
+ if (*c == '-')
+ ++c;
+ if (strncasecmp (c, "8859", 4))
+ FAIL;
+ c += 4;
+ if (*c == '-')
+ ++c;
+ val = strtol (c, &end, 10);
+ if (val < 1 || val > 16 || val == 12 || *end)
+ FAIL;
+ strcpy (charset, "ISO-8859-");
+ c = charset + 9;
+ if (val > 10)
+ *c++ = '1';
+ *c++ = val % 10 + '0';
+ *c = '\0';
+ break;
+ case 'C':
+ case 'c':
+ if (charset[1] != 'P' && charset[1] != 'p')
+ FAIL;
+ strncpy (charset, "CP", 2);
+ val = strtol (charset + 2, &end, 10);
+ if (*end)
+ FAIL;
+ switch (val)
+ {
+ case 437:
+ case 720:
+ case 737:
+ case 775:
+ case 850:
+ case 852:
+ case 855:
+ case 857:
+ case 858:
+ case 862:
+ case 866:
+ case 874:
+ case 1125:
+ case 1250:
+ case 1251:
+ case 1252:
+ case 1253:
+ case 1254:
+ case 1255:
+ case 1256:
+ case 1257:
+ case 1258:
+ case 932:
+ break;
+ default:
+ FAIL;
+ }
+ break;
+ case 'K':
+ case 'k':
+ /* KOI8-R, KOI8-U and the aliases without dash */
+ if (strncasecmp (charset, "KOI8", 4))
+ FAIL;
+ c = charset + 4;
+ if (*c == '-')
+ ++c;
+ if (*c == 'R' || *c == 'r')
+ {
+ val = 20866;
+ strcpy (charset, "CP20866");
+ }
+ else if (*c == 'U' || *c == 'u')
+ {
+ val = 21866;
+ strcpy (charset, "CP21866");
+ }
+ else
+ FAIL;
+ break;
+ case 'A':
+ case 'a':
+ if (strcasecmp (charset, "ASCII"))
+ FAIL;
+ strcpy (charset, "ASCII");
+ break;
+ case 'G':
+ case 'g':
+ /* Newlib does not provide GBK/GB2312 and Cygwin's implementation
+ requires Windows support. */
+ if (!strcasecmp (charset, "GBK")
+ || !strcasecmp (charset, "GB2312"))
+ strcpy (charset, charset[2] == '2' ? "GB2312" : "GBK");
+ else
+ /* GEORGIAN-PS and the alias without dash */
+ if (!strncasecmp (charset, "GEORGIAN", 8))
+ {
+ c = charset + 8;
+ if (*c == '-')
+ ++c;
+ if (strcasecmp (c, "PS"))
+ FAIL;
+ val = 101;
+ strcpy (charset, "CP101");
+ }
+ else
+ FAIL;
+ break;
+ case 'P':
+ case 'p':
+ /* PT154 */
+ if (strcasecmp (charset, "PT154"))
+ FAIL;
+ val = 102;
+ strcpy (charset, "CP102");
+ break;
+ case 'T':
+ case 't':
+ if (strncasecmp (charset, "TIS", 3))
+ FAIL;
+ c = charset + 3;
+ if (*c == '-')
+ ++c;
+ if (strcasecmp (c, "620"))
+ FAIL;
+ val = 874;
+ strcpy (charset, "CP874");
+ break;
+ /* Newlib does not provide Big5 and Cygwin's implementation
+ requires Windows support. */
+ case 'B':
+ case 'b':
+ if (strcasecmp (charset, "BIG5"))
+ FAIL;
+ strcpy (charset, "BIG5");
+ break;
+ default:
+ FAIL;
+ }
+
+ /* The following code is borrowed from nl_langinfo()
+ in newlib/libc/locale/nl_langinfo.c */
+ /* Convert charset to Linux compatible codeset string. */
+ const char *ret = charset;
+ if (ret[0] == 'A'/*SCII*/)
+ ret = "ANSI_X3.4-1968";
+ else if (ret[0] == 'E')
+ {
+ if (strcmp (ret, "EUCJP") == 0)
+ ret = "EUC-JP";
+ else if (strcmp (ret, "EUCKR") == 0)
+ ret = "EUC-KR";
+ else if (strcmp (ret, "EUCCN") == 0)
+ ret = "GB2312";
+ }
+ else if (ret[0] == 'C'/*Pxxxx*/)
+ {
+ if (strcmp (ret + 2, "874") == 0)
+ ret = "TIS-620";
+ else if (strcmp (ret + 2, "20866") == 0)
+ ret = "KOI8-R";
+ else if (strcmp (ret + 2, "21866") == 0)
+ ret = "KOI8-U";
+ else if (strcmp (ret + 2, "101") == 0)
+ ret = "GEORGIAN-PS";
+ else if (strcmp (ret + 2, "102") == 0)
+ ret = "PT154";
+ }
+ else if (ret[0] == 'S'/*JIS*/)
+ {
+ /* Cygwin uses MSFT's implementation of SJIS, which differs
+ in some codepoints from the real thing, especially
+ 0x5c: yen sign instead of backslash,
+ 0x7e: overline instead of tilde.
+ We can't use the real SJIS since otherwise Win32
+ pathnames would become invalid. OTOH, if we return
+ "SJIS" here, then libiconv will do mb<->wc conversion
+ differently to our internal functions. Therefore we
+ return what we really implement, CP932. This is handled
+ fine by libiconv. */
+ ret = "CP932";
+ }
+
+ wchar_t lc[ENCODING_LEN + 1];
+ wchar_t *p;
+ mbstowcs (lc, locale, ENCODING_LEN);
+ p = wcschr (lc, L'.');
+ if (p)
+ *p = L'\0';
+ p = wcschr (lc, L'_');
+ if (p)
+ *p = L'-';
+ LCID lcid = LocaleNameToLCID (lc, 0);
+#if 0
+ if (lcid == (LCID) -1)
+ return lcid;
+#endif
+ if (!lcid && !strcmp (charset, "ASCII"))
+ return 0;
+
+ /* Set results */
+ strcpy(locale_out, new_locale);
+ strcpy(charset_out, ret);
+ return lcid;
+}
+#endif /* USE_OWN_NLS_FUNC */
+
+void
+fhandler_pty_slave::fixup_after_attach (bool native_maybe)
+{
+ if (getPseudoConsole ())
+ {
+ if (fhandler_console::get_console_process_id (getHelperProcessId (),
+ true))
+ {
+ if (!pcon_attached[get_minor ()])
+ {
+ init_console_handler (true);
+#if USE_OWN_NLS_FUNC
+ char locale[ENCODING_LEN + 1] = "C";
+ char charset[ENCODING_LEN + 1] = "ASCII";
+ LCID lcid = get_langinfo (locale, charset);
+#else /* USE_OWN_NLS_FUNC */
+ char env[ENCODING_LEN + 1];
+ get_locale_from_env (env);
+ setlocale (LC_CTYPE, env);
+ const char *locale = setlocale (LC_CTYPE, NULL);
+#if 0
+ char tmp_locale[ENCODING_LEN + 1];
+ char *ret = __set_locale_from_locale_alias (locale, tmp_locale);
+ if (ret)
+ locale = tmp_locale;
+#endif
+ wchar_t lc[ENCODING_LEN + 1];
+ wchar_t *p;
+ mbstowcs (lc, locale, ENCODING_LEN);
+ p = wcschr (lc, L'.');
+ if (p)
+ *p = L'\0';
+ p = wcschr (lc, L'@');
+ if (p)
+ *p = L'\0';
+ p = wcschr (lc, L'_');
+ if (p)
+ *p = L'-';
+ LCID lcid = LocaleNameToLCID (lc, 0);
+ const char *charset = nl_langinfo (CODESET);
+#endif /* USE_OWN_NLS_FUNC */
+
+ /* Set console code page form locale */
+ UINT CodePage;
+ if (lcid == 0 || lcid == (LCID) -1)
+ CodePage = 20127; /* ASCII */
+ else if (!GetLocaleInfo (lcid,
+ LOCALE_IDEFAULTANSICODEPAGE | LOCALE_RETURN_NUMBER,
+ (char *) &CodePage, sizeof (CodePage)))
+ CodePage = 20127; /* ASCII */
+ SetConsoleCP (CodePage);
+ SetConsoleOutputCP (CodePage);
+
+ if (get_ttyp ()->num_pcon_attached_slaves == 0)
+ {
+ /* Set terminal code page from locale */
+ /* This code is borrowed from mintty: charset.c */
+ char charset_u[ENCODING_LEN + 1] = {0, };
+ for (int i=0; charset[i] && i<ENCODING_LEN; i++)
+ charset_u[i] = toupper (charset[i]);
+ unsigned int iso;
+ UINT cp = 20127; /* Default for fallback */
+ if (sscanf (charset_u, "ISO-8859-%u", &iso) == 1 ||
+ sscanf (charset_u, "ISO8859-%u", &iso) == 1 ||
+ sscanf (charset_u, "ISO8859%u", &iso) == 1)
+ {
+ if (iso && iso <= 16 && iso !=12)
+ get_ttyp ()->TermCodePage = 28590 + iso;
+ }
+ else if (sscanf (charset_u, "CP%u", &cp) == 1)
+ get_ttyp ()->TermCodePage = cp;
+ else
+ for (int i=0; cs_names[i].cp; i++)
+ if (strcasecmp (charset_u, cs_names[i].name) == 0)
+ {
+ get_ttyp ()->TermCodePage = cs_names[i].cp;
+ break;
+ }
+ }
+
+#if 1 /* Experimental code */
+ /* Clear screen to synchronize pseudo console screen buffer
+ with real terminal. This is necessary because pseudo
+ console screen buffer is empty at start. */
+ /* FIXME: Clearing sequence may not be "^[[H^[[J"
+ depending on the terminal type. */
+ DWORD n;
+ if (get_ttyp ()->num_pcon_attached_slaves == 0
+ && !ALWAYS_USE_PCON)
+ /* Assume this is the first process using this pty slave. */
+ WriteFile (get_output_handle_cyg (),
+ "\033[H\033[J", 6, &n, NULL);
+#endif
+
+ pcon_attached[get_minor ()] = true;
+ get_ttyp ()->num_pcon_attached_slaves ++;
+ }
+ }
+ else
+ pcon_attached[get_minor ()] = false;
+ }
+ if (pcon_attached[get_minor ()] && native_maybe)
+ {
+ FlushConsoleInputBuffer (get_handle ());
+ DWORD mode;
+ GetConsoleMode (get_handle (), &mode);
+ SetConsoleMode (get_handle (), mode | ENABLE_ECHO_INPUT);
+ Sleep (20);
+ if (get_ttyp ()->pcon_pid == 0 ||
+ kill (get_ttyp ()->pcon_pid, 0) != 0)
+ get_ttyp ()->pcon_pid = myself->pid;
+ get_ttyp ()->switch_to_pcon = true;
+ }
+}
+
void
fhandler_pty_slave::fixup_after_fork (HANDLE parent)
{
+ fixup_after_attach (false);
// fork_fixup (parent, inuse, "inuse");
// fhandler_pty_common::fixup_after_fork (parent);
report_tty_counts (this, "inherited", "");
@@ -1505,8 +2889,63 @@ fhandler_pty_slave::fixup_after_fork (HANDLE parent)
void
fhandler_pty_slave::fixup_after_exec ()
{
+ reset_switch_to_pcon ();
+
if (!close_on_exec ())
fixup_after_fork (NULL);
+ else if (getPseudoConsole ())
+ {
+ int used = 0;
+ cygheap_fdenum cfd (false);
+ while (cfd.next () >= 0)
+ if (cfd->get_major () == DEV_PTYS_MAJOR &&
+ cfd->get_minor () == get_minor ())
+ used ++;
+
+ /* Call FreeConsole() if no pty slave on this pty is
+ opened and the process is attached to the pseudo
+ console corresponding to this pty. This is needed
+ to make GNU screen and tmux work in Windows 10 1903. */
+ if (used == 1 /* About to close this one */ &&
+ fhandler_console::get_console_process_id (getHelperProcessId (),
+ true))
+ {
+ init_console_handler (false);
+ FreeConsole ();
+ pcon_attached[get_minor ()] = false;
+ }
+ }
+
+#if USE_API_HOOK
+ /* Hook Console API */
+ if (getPseudoConsole ())
+ {
+#define DO_HOOK(module, name) \
+ if (!name##_Orig) \
+ { \
+ void *api = hook_api (module, #name, (void *) name##_Hooked); \
+ name##_Orig = (__typeof__ (name) *) api; \
+ if (!api) system_printf("Hooking " #name " failed."); \
+ }
+ DO_HOOK ("kernel32.dll", WriteFile);
+ DO_HOOK ("kernel32.dll", WriteConsoleA);
+ DO_HOOK ("kernel32.dll", WriteConsoleW);
+ DO_HOOK ("kernel32.dll", ReadFile);
+ DO_HOOK ("kernel32.dll", ReadConsoleA);
+ DO_HOOK ("kernel32.dll", ReadConsoleW);
+ DO_HOOK ("kernel32.dll", WriteConsoleOutputA);
+ DO_HOOK ("kernel32.dll", WriteConsoleOutputW);
+ DO_HOOK ("kernel32.dll", WriteConsoleOutputCharacterA);
+ DO_HOOK ("kernel32.dll", WriteConsoleOutputCharacterW);
+ DO_HOOK ("kernel32.dll", WriteConsoleOutputAttribute);
+ DO_HOOK ("kernel32.dll", WriteConsoleInputA);
+ DO_HOOK ("kernel32.dll", WriteConsoleInputW);
+ DO_HOOK ("kernel32.dll", ReadConsoleInputA);
+ DO_HOOK ("kernel32.dll", ReadConsoleInputW);
+ DO_HOOK ("kernel32.dll", PeekConsoleInputA);
+ DO_HOOK ("kernel32.dll", PeekConsoleInputW);
+ }
+#endif /* USE_API_HOOK */
}
/* This thread function handles the master control pipe. It waits for a
@@ -1544,7 +2983,7 @@ fhandler_pty_master::pty_master_thread ()
while (!exit && (ConnectNamedPipe (master_ctl, NULL)
|| GetLastError () == ERROR_PIPE_CONNECTED))
{
- pipe_reply repl = { NULL, NULL, 0 };
+ pipe_reply repl = { NULL, NULL, NULL, 0 };
bool deimp = false;
NTSTATUS allow = STATUS_ACCESS_DENIED;
ACCESS_MASK access = EVENT_MODIFY_STATE;
@@ -1614,6 +3053,13 @@ fhandler_pty_master::pty_master_thread ()
termios_printf ("DuplicateHandle (from_master), %E");
goto reply;
}
+ if (!DuplicateHandle (GetCurrentProcess (), from_master_cyg,
+ client, &repl.from_master_cyg,
+ 0, TRUE, DUPLICATE_SAME_ACCESS))
+ {
+ termios_printf ("DuplicateHandle (from_master_cyg), %E");
+ goto reply;
+ }
if (!DuplicateHandle (GetCurrentProcess (), to_master,
client, &repl.to_master,
0, TRUE, DUPLICATE_SAME_ACCESS))
@@ -1657,26 +3103,115 @@ DWORD
fhandler_pty_master::pty_master_fwd_thread ()
{
DWORD rlen;
- char outbuf[OUT_BUFFER_SIZE];
+ char outbuf[65536];
- termios_printf("Started.");
+ termios_printf ("Started.");
for (;;)
{
- if (!ReadFile (get_handle (), outbuf, sizeof outbuf, &rlen, NULL))
+ if (!ReadFile (from_slave, outbuf, sizeof outbuf, &rlen, NULL))
{
termios_printf ("ReadFile for forwarding failed, %E");
break;
}
ssize_t wlen = rlen;
+ char *ptr = outbuf;
+ if (getPseudoConsole ())
+ {
+ /* Avoid duplicating slave output which is already sent to
+ to_master_cyg */
+ if (!check_switch_to_pcon ())
+ continue;
+
+ /* Avoid setting window title to "cygwin-console-helper.exe" */
+ int state = 0;
+ int start_at = 0;
+ for (DWORD i=0; i<rlen; i++)
+ if (outbuf[i] == '\033')
+ {
+ start_at = i;
+ state = 1;
+ continue;
+ }
+ else if ((state == 1 && outbuf[i] == ']') ||
+ (state == 2 && outbuf[i] == '0') ||
+ (state == 3 && outbuf[i] == ';') ||
+ (state == 4 && outbuf[i] == '\0'))
+ {
+ state ++;
+ continue;
+ }
+ else if (state == 5 && outbuf[i] == '\a')
+ {
+ memmove (&outbuf[start_at], &outbuf[i+1], rlen-i-1);
+ state = 0;
+ rlen = wlen = start_at + rlen - i - 1;
+ continue;
+ }
+ else if (state != 4 || outbuf[i] == '\a')
+ {
+ state = 0;
+ continue;
+ }
+
+ char *buf;
+ size_t nlen;
+ if (get_ttyp ()->TermCodePage != CP_UTF8)
+ {
+ size_t wlen2 =
+ MultiByteToWideChar (CP_UTF8, 0,
+ (char *)ptr, wlen, NULL, 0);
+ wchar_t *wbuf = (wchar_t *)
+ HeapAlloc (GetProcessHeap (), 0, wlen2 * sizeof (wchar_t));
+ wlen2 =
+ MultiByteToWideChar (CP_UTF8, 0,
+ (char *)ptr, wlen, wbuf, wlen2);
+ nlen = WideCharToMultiByte (get_ttyp ()->TermCodePage, 0,
+ wbuf, wlen2, NULL, 0, NULL, NULL);
+ buf = (char *) HeapAlloc (GetProcessHeap (), 0, nlen);
+ nlen = WideCharToMultiByte (get_ttyp ()->TermCodePage, 0,
+ wbuf, wlen2, buf, nlen, NULL, NULL);
+ HeapFree (GetProcessHeap (), 0, wbuf);
+ }
+ else
+ {
+ /* Just copy */
+ buf = (char *) HeapAlloc (GetProcessHeap (), 0, wlen);
+ memcpy (buf, (char *)ptr, wlen);
+ nlen = wlen;
+ }
+ ptr = buf;
+ wlen = rlen = nlen;
+
+ /* OPOST processing was already done in pseudo console,
+ so just write it to to_master_cyg. */
+ DWORD written;
+ acquire_output_mutex (INFINITE);
+ while (rlen>0)
+ {
+ if (!WriteFile (to_master_cyg, ptr, wlen, &written, NULL))
+ {
+ termios_printf ("WriteFile for forwarding failed, %E");
+ break;
+ }
+ ptr += written;
+ wlen = (rlen -= written);
+ }
+ release_output_mutex ();
+ HeapFree (GetProcessHeap (), 0, buf);
+ continue;
+ }
+ acquire_output_mutex (INFINITE);
while (rlen>0)
{
- if (!process_opost_output (to_master_cyg, outbuf, wlen, false))
+ if (!process_opost_output (to_master_cyg, ptr, wlen, false))
{
termios_printf ("WriteFile for forwarding failed, %E");
break;
}
- rlen -= wlen;
+ ptr += wlen;
+ wlen = (rlen -= wlen);
}
+ release_output_mutex ();
}
return 0;
}
@@ -1687,6 +3222,135 @@ pty_master_fwd_thread (VOID *arg)
return ((fhandler_pty_master *) arg)->pty_master_fwd_thread ();
}
+/* If master process is running as service, attaching to
+ pseudo console should be done in fork. If attaching
+ is done in spawn for inetd or sshd, it fails because
+ the helper process is running as privileged user while
+ slave process is not. This function is used to determine
+ if the process is running as a srvice or not. */
+static bool
+is_running_as_service (void)
+{
+ DWORD dwSize = 0;
+ PTOKEN_GROUPS pGroupInfo;
+ tmp_pathbuf tp;
+ pGroupInfo = (PTOKEN_GROUPS) tp.w_get ();
+ NtQueryInformationToken (hProcToken, TokenGroups, pGroupInfo,
+ 2 * NT_MAX_PATH, &dwSize);
+ for (DWORD i=0; i<pGroupInfo->GroupCount; i++)
+ if (RtlEqualSid (well_known_service_sid, pGroupInfo->Groups[i].Sid))
+ return true;
+ for (DWORD i=0; i<pGroupInfo->GroupCount; i++)
+ if (RtlEqualSid (well_known_interactive_sid, pGroupInfo->Groups[i].Sid))
+ return false;
+ return true;
+}
+
+bool
+fhandler_pty_master::setup_pseudoconsole ()
+{
+ /* Pseudo console supprot is realized using a tricky technic.
+ PTY need the pseudo console handles, however, they cannot
+ be retrieved by normal procedure. Therefore, run a helper
+ process in a pseudo console and get them from the helper.
+ Slave process will attach to the pseudo console in the
+ helper process using AttachConsole(). */
+ HMODULE hModule = GetModuleHandle ("kernel32.dll");
+ FARPROC func = GetProcAddress (hModule, "CreatePseudoConsole");
+ HRESULT (WINAPI *CreatePseudoConsole)
+ (COORD, HANDLE, HANDLE, DWORD, HPCON *) = NULL;
+ if (!func)
+ return false;
+ CreatePseudoConsole =
+ (HRESULT (WINAPI *) (COORD, HANDLE, HANDLE, DWORD, HPCON *)) func;
+ COORD size = {80, 25};
+ CreatePipe (&from_master, &to_slave, &sec_none, 0);
+ HRESULT res = CreatePseudoConsole (size, from_master, to_master,
+ 0, &get_ttyp ()->hPseudoConsole);
+ if (res != S_OK)
+ {
+ system_printf ("CreatePseudoConsole() failed. %08x\n",
+ GetLastError());
+ CloseHandle (from_master);
+ CloseHandle (to_slave);
+ from_master = from_master_cyg;
+ to_slave = NULL;
+ get_ttyp ()->hPseudoConsole = NULL;
+ return false;
+ }
+
+ /* If master process is running as service, attaching to
+ pseudo console should be done in fork. If attaching
+ is done in spawn for inetd or sshd, it fails because
+ the helper process is running as privileged user while
+ slave process is not. */
+ if (is_running_as_service ())
+ get_ttyp ()->attach_pcon_in_fork = true;
+
+ SIZE_T bytesRequired;
+ InitializeProcThreadAttributeList (NULL, 1, 0, &bytesRequired);
+ STARTUPINFOEXW si_helper;
+ ZeroMemory (&si_helper, sizeof (si_helper));
+ si_helper.StartupInfo.cb = sizeof (STARTUPINFOEXW);
+ si_helper.lpAttributeList = (PPROC_THREAD_ATTRIBUTE_LIST)
+ HeapAlloc (GetProcessHeap (), 0, bytesRequired);
+ InitializeProcThreadAttributeList (si_helper.lpAttributeList,
+ 1, 0, &bytesRequired);
+ UpdateProcThreadAttribute (si_helper.lpAttributeList,
+ 0,
+ PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE,
+ get_ttyp ()->hPseudoConsole,
+ sizeof (get_ttyp ()->hPseudoConsole),
+ NULL, NULL);
+ HANDLE hello = CreateEvent (&sec_none, true, false, NULL);
+ HANDLE goodbye = CreateEvent (&sec_none, true, false, NULL);
+ /* Create a pipe for receiving pseudo console handles */
+ HANDLE hr, hw;
+ CreatePipe (&hr, &hw, &sec_none, 0);
+ /* Create helper process */
+ WCHAR cmd[MAX_PATH];
+ path_conv helper ("/bin/cygwin-console-helper.exe");
+ size_t len = helper.get_wide_win32_path_len ();
+ helper.get_wide_win32_path (cmd);
+ __small_swprintf (cmd + len, L" %p %p %p", hello, goodbye, hw);
+ si_helper.StartupInfo.dwFlags = STARTF_USESTDHANDLES;
+ si_helper.StartupInfo.hStdInput = NULL;
+ si_helper.StartupInfo.hStdOutput = NULL;
+ si_helper.StartupInfo.hStdError = NULL;
+ PROCESS_INFORMATION pi_helper;
+ CreateProcessW (NULL, cmd, &sec_none, &sec_none,
+ TRUE, EXTENDED_STARTUPINFO_PRESENT,
+ NULL, NULL, &si_helper.StartupInfo, &pi_helper);
+ WaitForSingleObject (hello, INFINITE);
+ /* Retrieve pseudo console handles */
+ DWORD rLen;
+ char buf[64];
+ ReadFile (hr, buf, sizeof (buf), &rLen, NULL);
+ buf[rLen] = '\0';
+ HANDLE hpConIn, hpConOut;
+ sscanf (buf, "StdHandles=%p,%p", &hpConIn, &hpConOut);
+ DuplicateHandle (pi_helper.hProcess, hpConIn,
+ GetCurrentProcess (), &hpConIn, 0,
+ TRUE, DUPLICATE_SAME_ACCESS);
+ DuplicateHandle (pi_helper.hProcess, hpConOut,
+ GetCurrentProcess (), &hpConOut, 0,
+ TRUE, DUPLICATE_SAME_ACCESS);
+ CloseHandle (hr);
+ CloseHandle (hw);
+ /* Clean up */
+ DeleteProcThreadAttributeList (si_helper.lpAttributeList);
+ HeapFree (GetProcessHeap (), 0, si_helper.lpAttributeList);
+ /* Setting information of stuffs regarding pseudo console */
+ get_ttyp ()->hHelperGoodbye = goodbye;
+ get_ttyp ()->hHelperProcess = pi_helper.hProcess;
+ get_ttyp ()->HelperProcessId = pi_helper.dwProcessId;
+ CloseHandle (from_master);
+ CloseHandle (to_master);
+ from_master = hpConIn;
+ to_master = hpConOut;
+ return true;
+}
+
bool
fhandler_pty_master::setup ()
{
@@ -1695,10 +3359,15 @@ fhandler_pty_master::setup ()
SECURITY_ATTRIBUTES sa = { sizeof (SECURITY_ATTRIBUTES), NULL, TRUE };
/* Find an unallocated pty to use. */
- int unit = cygwin_shared->tty.allocate (from_master, get_output_handle ());
+ int unit = cygwin_shared->tty.allocate (from_master_cyg, get_output_handle ());
if (unit < 0)
return false;
+ /* from_master should be used for pseudo console.
+ Just copy from_master_cyg here for the case that
+ pseudo console is not available. */
+ from_master = from_master_cyg;
+
ProtectHandle1 (get_output_handle (), to_pty);
tty& t = *cygwin_shared->tty[unit];
@@ -1715,7 +3384,7 @@ fhandler_pty_master::setup ()
char pipename[sizeof("ptyNNNN-to-master-cyg")];
__small_sprintf (pipename, "pty%d-to-master", unit);
- res = fhandler_pipe::create (&sec_none, &get_handle (), &to_master,
+ res = fhandler_pipe::create (&sec_none, &from_slave, &to_master,
fhandler_pty_common::pipesize, pipename, 0);
if (res)
{
@@ -1724,7 +3393,7 @@ fhandler_pty_master::setup ()
}
__small_sprintf (pipename, "pty%d-to-master-cyg", unit);
- res = fhandler_pipe::create (&sec_none, &get_handle_cyg (), &to_master_cyg,
+ res = fhandler_pipe::create (&sec_none, &get_handle (), &to_master_cyg,
fhandler_pty_common::pipesize, pipename, 0);
if (res)
{
@@ -1732,7 +3401,7 @@ fhandler_pty_master::setup ()
goto err;
}
- ProtectHandle1 (get_handle (), from_pty);
+ ProtectHandle1 (from_slave, from_pty);
__small_sprintf (pipename, "pty%d-echoloop", unit);
res = fhandler_pipe::create (&sec_none, &echo_r, &echo_w,
@@ -1797,7 +3466,10 @@ fhandler_pty_master::setup ()
goto err;
}
+ setup_pseudoconsole ();
+
t.set_from_master (from_master);
+ t.set_from_master_cyg (from_master_cyg);
t.set_to_master (to_master);
t.set_to_master_cyg (to_master_cyg);
t.winsize.ws_col = 80;
@@ -1807,19 +3479,20 @@ fhandler_pty_master::setup ()
dev ().parse (DEV_PTYM_MAJOR, unit);
termios_printf ("this %p, pty%d opened - from_pty <%p,%p>, to_pty %p",
- this, unit, get_handle (), get_handle_cyg (),
+ this, unit, from_slave, get_handle (),
get_output_handle ());
return true;
err:
__seterrno ();
+ close_maybe (from_slave);
close_maybe (get_handle ());
- close_maybe (get_handle_cyg ());
close_maybe (get_output_handle ());
close_maybe (input_available_event);
close_maybe (output_mutex);
close_maybe (input_mutex);
close_maybe (from_master);
+ close_maybe (from_master_cyg);
close_maybe (to_master);
close_maybe (to_master_cyg);
close_maybe (echo_r);
@@ -1840,14 +3513,20 @@ fhandler_pty_master::fixup_after_fork (HANDLE parent)
if (myself->pid == t.master_pid)
{
t.set_from_master (arch->from_master);
+ t.set_from_master_cyg (arch->from_master_cyg);
t.set_to_master (arch->to_master);
t.set_to_master_cyg (arch->to_master_cyg);
}
arch->dwProcessId = wpid;
}
from_master = arch->from_master;
+ from_master_cyg = arch->from_master_cyg;
to_master = arch->to_master;
to_master_cyg = arch->to_master_cyg;
+#if 0 /* Not sure if this is necessary. */
+ from_slave = arch->from_slave;
+ to_slave = arch->to_slave;
+#endif
report_tty_counts (this, "inherited master", "");
}
@@ -1857,7 +3536,8 @@ fhandler_pty_master::fixup_after_exec ()
if (!close_on_exec ())
fixup_after_fork (spawn_info->parent);
else
- from_master = to_master = to_master_cyg = NULL;
+ from_master = from_master_cyg = to_master = to_master_cyg =
+ from_slave = to_slave = NULL;
}
BOOL
@@ -1865,6 +3545,9 @@ fhandler_pty_common::process_opost_output (HANDLE h, const void *ptr, ssize_t& l
{
ssize_t towrite = len;
BOOL res = TRUE;
+ BOOL (WINAPI *WriteFunc)
+ (HANDLE, LPCVOID, DWORD, LPDWORD, LPOVERLAPPED);
+ WriteFunc = WriteFile_Orig ? WriteFile_Orig : WriteFile;
while (towrite)
{
if (!is_echo)
@@ -1887,7 +3570,7 @@ fhandler_pty_common::process_opost_output (HANDLE h, const void *ptr, ssize_t& l
if (!(get_ttyp ()->ti.c_oflag & OPOST)) // raw output mode
{
DWORD n = MIN (OUT_BUFFER_SIZE, towrite);
- res = WriteFile (h, ptr, n, &n, NULL);
+ res = WriteFunc (h, ptr, n, &n, NULL);
if (!res)
break;
ptr = (char *) ptr + n;
@@ -1899,7 +3582,6 @@ fhandler_pty_common::process_opost_output (HANDLE h, const void *ptr, ssize_t& l
char *buf = (char *)ptr;
DWORD n = 0;
ssize_t rc = 0;
- acquire_output_mutex (INFINITE);
while (n < OUT_BUFFER_SIZE && rc < towrite)
{
switch (buf[rc])
@@ -1938,8 +3620,7 @@ fhandler_pty_common::process_opost_output (HANDLE h, const void *ptr, ssize_t& l
break;
}
}
- release_output_mutex ();
- res = WriteFile (h, outbuf, n, &n, NULL);
+ res = WriteFunc (h, outbuf, n, &n, NULL);
if (!res)
break;
ptr = (char *) ptr + rc;
diff --git a/winsup/cygwin/fork.cc b/winsup/cygwin/fork.cc
index 7080144b9..0c089dbe9 100644
--- a/winsup/cygwin/fork.cc
+++ b/winsup/cygwin/fork.cc
@@ -134,6 +134,30 @@ child_info::prefork (bool detached)
int __stdcall
frok::child (volatile char * volatile here)
{
+ cygheap_fdenum cfd (false);
+ while (cfd.next () >= 0)
+ if (cfd->get_major () == DEV_PTYM_MAJOR)
+ {
+ fhandler_base *fh = cfd;
+ fhandler_pty_master *ptym = (fhandler_pty_master *) fh;
+ if (ptym->getPseudoConsole () &&
+ !fhandler_console::get_console_process_id (
+ ptym->getHelperProcessId (), true))
+
+ {
+ debug_printf ("found a PTY master %d: helper_PID=%d",
+ ptym->get_minor (), ptym->getHelperProcessId ());
+ if (ptym->attach_pcon_in_fork ())
+ {
+ FreeConsole ();
+ if (!AttachConsole (ptym->getHelperProcessId ()))
+ /* Error */;
+ else
+ break;
+ }
+ }
+ }
+
HANDLE& hParent = ch.parent;
sync_with_parent ("after longjmp", true);
diff --git a/winsup/cygwin/init.cc b/winsup/cygwin/init.cc
index aeeeac772..851a7ffed 100644
--- a/winsup/cygwin/init.cc
+++ b/winsup/cygwin/init.cc
@@ -100,6 +100,7 @@ dll_entry (HANDLE h, DWORD reason, void *static_load)
will always fall back to __global_locale, rather then crash due to
_REENT->_locale having an arbitrary value. */
alloca_dummy = alloca (CYGTLS_PADSIZE);
+ ZeroMemory (alloca_dummy, CYGTLS_PADSIZE);
memcpy (_REENT, _GLOBAL_REENT, sizeof (struct _reent));
dll_crt0_0 ();
diff --git a/winsup/cygwin/select.cc b/winsup/cygwin/select.cc
index ac73e0a88..d29f3d2f4 100644
--- a/winsup/cygwin/select.cc
+++ b/winsup/cygwin/select.cc
@@ -667,6 +667,9 @@ peek_pipe (select_record *s, bool from_select)
fhm->flush_to_slave ();
}
break;
+ case DEV_PTYS_MAJOR:
+ ((fhandler_pty_slave *) fh)->reset_switch_to_pcon ();
+ break;
default:
if (fh->get_readahead_valid ())
{
@@ -1178,17 +1181,32 @@ verify_tty_slave (select_record *me, fd_set *readfds, fd_set *writefds,
return set_bits (me, readfds, writefds, exceptfds);
}
+static int
+pty_slave_startup (select_record *s, select_stuff *)
+{
+ fhandler_base *fh = (fhandler_base *) s->fh;
+ ((fhandler_pty_slave *) fh)->mask_switch_to_pcon (true);
+ return 1;
+}
+
+static void
+pty_slave_cleanup (select_record *s, select_stuff *)
+{
+ fhandler_base *fh = (fhandler_base *) s->fh;
+ ((fhandler_pty_slave *) fh)->mask_switch_to_pcon (false);
+}
+
select_record *
fhandler_pty_slave::select_read (select_stuff *ss)
{
select_record *s = ss->start.next;
s->h = input_available_event;
- s->startup = no_startup;
+ s->startup = pty_slave_startup;
s->peek = peek_pipe;
s->verify = verify_tty_slave;
s->read_selected = true;
s->read_ready = false;
- s->cleanup = NULL;
+ s->cleanup = pty_slave_cleanup;
return s;
}
diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc
index d95772802..98612bd0f 100644
--- a/winsup/cygwin/spawn.cc
+++ b/winsup/cygwin/spawn.cc
@@ -259,6 +259,8 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv,
{
bool rc;
int res = -1;
+ DWORD pidRestore = 0;
+ bool attach_to_pcon = false;
/* Check if we have been called from exec{lv}p or spawn{lv}p and mask
mode to keep only the spawn mode. */
@@ -572,6 +574,58 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv,
PROCESS_QUERY_LIMITED_INFORMATION))
sa = &sec_none_nih;
+ /* Attach to pseudo console if pty salve is used */
+ pidRestore = fhandler_console::get_console_process_id
+ (GetCurrentProcessId (), false);
+ fhandler_pty_slave *ptys = NULL;
+ for (int fd = 0; fd < 3; fd ++)
+ {
+ fhandler_base *fh = ::cygheap->fdtab[fd];
+ if (fh && fh->get_major () == DEV_PTYS_MAJOR)
+ {
+ ptys = (fhandler_pty_slave *) fh;
+ if (ptys->getPseudoConsole () &&
+ !fhandler_console::get_console_process_id (
+ ptys->getHelperProcessId (), true))
+ {
+ DWORD dwHelperProcessId = ptys->getHelperProcessId ();
+ debug_printf ("found a PTY slave %d: helper_PID=%d",
+ fh->get_minor (), dwHelperProcessId);
+ FreeConsole ();
+ if (!AttachConsole (dwHelperProcessId))
+ {
+ /* Fallback */
+ DWORD target[3] = {
+ STD_INPUT_HANDLE,
+ STD_OUTPUT_HANDLE,
+ STD_ERROR_HANDLE
+ };
+ if (fd == 0)
+ {
+ ptys->set_handle (ptys->get_handle_cyg ());
+ SetStdHandle (target[fd],
+ ptys->get_handle ());
+ }
+ else
+ {
+ ptys->set_output_handle (
+ ptys->get_output_handle_cyg ());
+ SetStdHandle (target[fd],
+ ptys->get_output_handle ());
+ }
+ }
+ else
+ {
+ init_console_handler (true);
+ attach_to_pcon = true;
+ break;
+ }
+ }
+ }
+ }
+ if (ptys)
+ ptys->fixup_after_attach (true);
+
loop:
/* When ruid != euid we create the new process under the current original
account and impersonate in child, this way maintaining the different
@@ -869,6 +923,13 @@ child_info_spawn::worker (const char *prog_arg, const char *const *argv,
this->cleanup ();
if (envblock)
free (envblock);
+
+ if (attach_to_pcon && pidRestore)
+ {
+ FreeConsole ();
+ AttachConsole (pidRestore);
+ }
+
return (int) res;
}
diff --git a/winsup/cygwin/strace.cc b/winsup/cygwin/strace.cc
index 35f8a59ae..b1eb5f3e4 100644
--- a/winsup/cygwin/strace.cc
+++ b/winsup/cygwin/strace.cc
@@ -279,6 +279,30 @@ strace::vprntf (unsigned category, const char *func, const char *fmt, va_list ap
CloseHandle (h);
}
}
+#if 1 /* Experimental code */
+ /* PTY with pseudo console cannot display data written to
+ STD_ERROR_HANDLE (output_handle) if the process is cygwin
+ process. output_handle works only in native console apps.
+ Therefore the data should be written to output_handle_cyg
+ as well. */
+ fhandler_base *fh = ::cygheap->fdtab[2];
+ if (fh && fh->get_major () == DEV_PTYS_MAJOR)
+ {
+ fhandler_pty_slave *ptys = (fhandler_pty_slave *) fh;
+ if (ptys->getPseudoConsole ())
+ {
+ HANDLE h_cyg = ptys->get_output_handle_cyg ();
+ if (buf[len-1] == '\n' && len < NT_MAX_PATH - 1)
+ {
+ buf[len-1] = '\r';
+ buf[len] = '\n';
+ len ++;
+ }
+ WriteFile (h_cyg, buf, len, &done, 0);
+ FlushFileBuffers (h_cyg);
+ }
+ }
+#endif
}
#ifndef NOSTRACE
diff --git a/winsup/cygwin/tty.cc b/winsup/cygwin/tty.cc
index ad46cb312..9244267c0 100644
--- a/winsup/cygwin/tty.cc
+++ b/winsup/cygwin/tty.cc
@@ -234,7 +234,15 @@ tty::init ()
was_opened = false;
master_pid = 0;
is_console = false;
+ attach_pcon_in_fork = false;
+ hPseudoConsole = NULL;
column = 0;
+ switch_to_pcon = false;
+ screen_alternated = false;
+ mask_switch_to_pcon = false;
+ pcon_pid = 0;
+ num_pcon_attached_slaves = 0;
+ TermCodePage = 20127; /* ASCII */
}
HANDLE
diff --git a/winsup/cygwin/tty.h b/winsup/cygwin/tty.h
index 9aee43b9c..d59b2027d 100644
--- a/winsup/cygwin/tty.h
+++ b/winsup/cygwin/tty.h
@@ -28,6 +28,8 @@ details. */
#define MIN_CTRL_C_SLOP 50
#endif
+typedef void *HPCON;
+
#include <devices.h>
class tty_min
{
@@ -88,14 +90,28 @@ public:
private:
HANDLE _from_master;
+ HANDLE _from_master_cyg;
HANDLE _to_master;
HANDLE _to_master_cyg;
+ HPCON hPseudoConsole;
+ HANDLE hHelperProcess;
+ DWORD HelperProcessId;
+ HANDLE hHelperGoodbye;
+ bool attach_pcon_in_fork;
+ bool switch_to_pcon;
+ bool screen_alternated;
+ bool mask_switch_to_pcon;
+ pid_t pcon_pid;
+ int num_pcon_attached_slaves;
+ UINT TermCodePage;
public:
- HANDLE from_master() const { return _from_master; }
- HANDLE to_master() const { return _to_master; }
- HANDLE to_master_cyg() const { return _to_master_cyg; }
+ HANDLE from_master () const { return _from_master; }
+ HANDLE from_master_cyg () const { return _from_master_cyg; }
+ HANDLE to_master () const { return _to_master; }
+ HANDLE to_master_cyg () const { return _to_master_cyg; }
void set_from_master (HANDLE h) { _from_master = h; }
+ void set_from_master_cyg (HANDLE h) { _from_master_cyg = h; }
void set_to_master (HANDLE h) { _to_master = h; }
void set_to_master_cyg (HANDLE h) { _to_master_cyg = h; }
@@ -117,7 +133,9 @@ public:
void set_master_ctl_closed () {master_pid = -1;}
static void __stdcall create_master (int);
static void __stdcall init_session ();
+ friend class fhandler_pty_common;
friend class fhandler_pty_master;
+ friend class fhandler_pty_slave;
};
class tty_list
diff --git a/winsup/utils/cygwin-console-helper.cc b/winsup/utils/cygwin-console-helper.cc
index 0e04f4d18..ad451ecf5 100644
--- a/winsup/utils/cygwin-console-helper.cc
+++ b/winsup/utils/cygwin-console-helper.cc
@@ -1,12 +1,24 @@
#include <windows.h>
+#include <stdio.h>
int
main (int argc, char **argv)
{
char *end;
- if (argc != 3)
+ if (argc < 3)
exit (1);
HANDLE h = (HANDLE) strtoull (argv[1], &end, 0);
SetEvent (h);
+ if (argc == 4) /* Pseudo console helper mode for PTY */
+ {
+ HANDLE hPipe = (HANDLE) strtoull (argv[3], &end, 0);
+ char buf[64];
+ sprintf (buf, "StdHandles=%p,%p\n",
+ GetStdHandle (STD_INPUT_HANDLE),
+ GetStdHandle (STD_OUTPUT_HANDLE));
+ DWORD dwLen;
+ WriteFile (hPipe, buf, strlen (buf), &dwLen, NULL);
+ CloseHandle (hPipe);
+ }
h = (HANDLE) strtoull (argv[2], &end, 0);
WaitForSingleObject (h, INFINITE);
exit (0);
--
2.21.0
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH v9 0/1] Cygwin: pty: add pseudo console support.
@ 2019-08-27 18:04 Takashi Yano
2019-08-27 18:04 ` [PATCH v9 1/1] " Takashi Yano
0 siblings, 1 reply; 2+ messages in thread
From: Takashi Yano @ 2019-08-27 18:04 UTC (permalink / raw)
To: cygwin-developers; +Cc: Takashi Yano
Major changes from v8:
- Fix again charset conversion to make it consistent with that of
mintty.
- Fix management of the state variable which shows whether process
is attached to the pseudo console.
- Solve the issue that gnu screen and tmux does not work properly
in Win10 1903.
- Fix small bug and refactor codes regarding API hook.
Takashi Yano (1):
Cygwin: pty: add pseudo console support.
winsup/cygwin/dtable.cc | 51 +
winsup/cygwin/fhandler.h | 45 +-
winsup/cygwin/fhandler_console.cc | 32 +
winsup/cygwin/fhandler_tty.cc | 1765 ++++++++++++++++++++++++-
winsup/cygwin/fork.cc | 24 +
winsup/cygwin/init.cc | 1 +
winsup/cygwin/select.cc | 22 +-
winsup/cygwin/spawn.cc | 61 +
winsup/cygwin/strace.cc | 24 +
winsup/cygwin/tty.cc | 8 +
winsup/cygwin/tty.h | 24 +-
winsup/utils/cygwin-console-helper.cc | 14 +-
12 files changed, 2016 insertions(+), 55 deletions(-)
--
2.21.0
^ permalink raw reply [flat|nested] 2+ messages in thread
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