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Diffstat (limited to 'ncurses/tinfo/lib_win32util.c')
| -rw-r--r-- | ncurses/tinfo/lib_win32util.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/ncurses/tinfo/lib_win32util.c b/ncurses/tinfo/lib_win32util.c new file mode 100644 index 0000000..1482916 --- /dev/null +++ b/ncurses/tinfo/lib_win32util.c @@ -0,0 +1,134 @@ +/**************************************************************************** + * Copyright 2020,2021 Thomas E. Dickey * + * Copyright 1998-2009,2010 Free Software Foundation, Inc. * + * * + * 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, distribute with modifications, 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 ABOVE 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. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Juergen Pfeifer * + * and: Thomas E. Dickey * + ****************************************************************************/ + +#include <curses.priv.h> + +MODULE_ID("$Id: lib_win32util.c,v 1.2 2021/09/04 10:54:35 tom Exp $") + +#ifdef _NC_WINDOWS +#include <io.h> + +#ifdef _NC_CHECK_MINTTY +#define PSAPI_VERSION 2 +#include <psapi.h> +#include <tchar.h> + +#define array_length(a) (sizeof(a)/sizeof(a[0])) + +/* This function tests, whether or not the ncurses application + is running as a descendant of MSYS2/cygwin mintty terminal + application. mintty doesn't use Windows Console for its screen + I/O, so the native Windows _isatty doesn't recognize it as + character device. But we can discover we are at the end of an + Pipe and can query the server side of the pipe, looking whether + or not this is mintty. + For now we terminate the program if we discover that situation. + Althogh in theory it would be possible, to remotely manipulate + the terminal state of mintty, this is out of scope for now and + not worth the significant effort. + */ +NCURSES_EXPORT(int) +_nc_console_checkmintty(int fd, LPHANDLE pMinTTY) +{ + HANDLE handle = _nc_console_handle(fd); + DWORD dw; + int code = 0; + + T((T_CALLED("lib_winhelper::_nc_console_checkmintty(%d, %p)"), fd, pMinTTY)); + + if (handle != INVALID_HANDLE_VALUE) { + dw = GetFileType(handle); + if (dw == FILE_TYPE_PIPE) { + if (GetNamedPipeInfo(handle, 0, 0, 0, 0)) { + ULONG pPid; + /* Requires NT6 */ + if (GetNamedPipeServerProcessId(handle, &pPid)) { + TCHAR buf[MAX_PATH]; + DWORD len = 0; + /* These security attributes may allow us to + create a remote thread in mintty to manipulate + the terminal state remotely */ + HANDLE pHandle = OpenProcess( + PROCESS_CREATE_THREAD + | PROCESS_QUERY_INFORMATION + | PROCESS_VM_OPERATION + | PROCESS_VM_WRITE + | PROCESS_VM_READ, + FALSE, + pPid); + if (pMinTTY) + *pMinTTY = INVALID_HANDLE_VALUE; + if (pHandle != INVALID_HANDLE_VALUE) { + if ((len = GetProcessImageFileName( + pHandle, + buf, + (DWORD) + array_length(buf)))) { + TCHAR *pos = _tcsrchr(buf, _T('\\')); + if (pos) { + pos++; + if (_tcsnicmp(pos, _TEXT("mintty.exe"), 10) + == 0) { + if (pMinTTY) + *pMinTTY = pHandle; + code = 1; + } + } + } + } + } + } + } + } + returnCode(code); +} +#endif /* _NC_CHECK_MINTTY */ + +#define JAN1970 116444736000000000LL /* the value for 01/01/1970 00:00 */ + +NCURSES_EXPORT(int) +_nc_gettimeofday(struct timeval *tv, void *tz GCC_UNUSED) +{ + union { + FILETIME ft; + long long since1601; /* time since 1 Jan 1601 in 100ns units */ + } data; + + GetSystemTimeAsFileTime(&data.ft); + tv->tv_usec = (long) ((data.since1601 / 10LL) % 1000000LL); + tv->tv_sec = (long) ((data.since1601 - JAN1970) / 10000000LL); + return (0); +} + +#endif // _NC_WINDOWS |