From 85f4741fcf642f52ac4fa56f0aff1728727c901b Mon Sep 17 00:00:00 2001 From: Miodrag Milanovic Date: Fri, 7 Oct 2016 14:14:08 +0200 Subject: Remove libuv library (nw) --- 3rdparty/libuv/src/win/process-stdio.c | 510 --------------------------------- 1 file changed, 510 deletions(-) delete mode 100644 3rdparty/libuv/src/win/process-stdio.c (limited to '3rdparty/libuv/src/win/process-stdio.c') diff --git a/3rdparty/libuv/src/win/process-stdio.c b/3rdparty/libuv/src/win/process-stdio.c deleted file mode 100644 index e3c06f57dea..00000000000 --- a/3rdparty/libuv/src/win/process-stdio.c +++ /dev/null @@ -1,510 +0,0 @@ -/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. - * - * 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. - */ - -#include -#include -#include -#include - -#include "uv.h" -#include "internal.h" -#include "handle-inl.h" - - -/* - * The `child_stdio_buffer` buffer has the following layout: - * int number_of_fds - * unsigned char crt_flags[number_of_fds] - * HANDLE os_handle[number_of_fds] - */ -#define CHILD_STDIO_SIZE(count) \ - (sizeof(int) + \ - sizeof(unsigned char) * (count) + \ - sizeof(uintptr_t) * (count)) - -#define CHILD_STDIO_COUNT(buffer) \ - *((unsigned int*) (buffer)) - -#define CHILD_STDIO_CRT_FLAGS(buffer, fd) \ - *((unsigned char*) (buffer) + sizeof(int) + fd) - -#define CHILD_STDIO_HANDLE(buffer, fd) \ - *((HANDLE*) ((unsigned char*) (buffer) + \ - sizeof(int) + \ - sizeof(unsigned char) * \ - CHILD_STDIO_COUNT((buffer)) + \ - sizeof(HANDLE) * (fd))) - - -/* CRT file descriptor mode flags */ -#define FOPEN 0x01 -#define FEOFLAG 0x02 -#define FCRLF 0x04 -#define FPIPE 0x08 -#define FNOINHERIT 0x10 -#define FAPPEND 0x20 -#define FDEV 0x40 -#define FTEXT 0x80 - - -/* - * Clear the HANDLE_FLAG_INHERIT flag from all HANDLEs that were inherited - * the parent process. Don't check for errors - the stdio handles may not be - * valid, or may be closed already. There is no guarantee that this function - * does a perfect job. - */ -void uv_disable_stdio_inheritance(void) { - HANDLE handle; - STARTUPINFOW si; - - /* Make the windows stdio handles non-inheritable. */ - handle = GetStdHandle(STD_INPUT_HANDLE); - if (handle != NULL && handle != INVALID_HANDLE_VALUE) - SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0); - - handle = GetStdHandle(STD_OUTPUT_HANDLE); - if (handle != NULL && handle != INVALID_HANDLE_VALUE) - SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0); - - handle = GetStdHandle(STD_ERROR_HANDLE); - if (handle != NULL && handle != INVALID_HANDLE_VALUE) - SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0); - - /* Make inherited CRT FDs non-inheritable. */ - GetStartupInfoW(&si); - if (uv__stdio_verify(si.lpReserved2, si.cbReserved2)) - uv__stdio_noinherit(si.lpReserved2); -} - - -static int uv__create_stdio_pipe_pair(uv_loop_t* loop, - uv_pipe_t* server_pipe, HANDLE* child_pipe_ptr, unsigned int flags) { - char pipe_name[64]; - SECURITY_ATTRIBUTES sa; - DWORD server_access = 0; - DWORD client_access = 0; - HANDLE child_pipe = INVALID_HANDLE_VALUE; - int err; - - if (flags & UV_READABLE_PIPE) { - /* The server needs inbound access too, otherwise CreateNamedPipe() */ - /* won't give us the FILE_READ_ATTRIBUTES permission. We need that to */ - /* probe the state of the write buffer when we're trying to shutdown */ - /* the pipe. */ - server_access |= PIPE_ACCESS_OUTBOUND | PIPE_ACCESS_INBOUND; - client_access |= GENERIC_READ | FILE_WRITE_ATTRIBUTES; - } - if (flags & UV_WRITABLE_PIPE) { - server_access |= PIPE_ACCESS_INBOUND; - client_access |= GENERIC_WRITE | FILE_READ_ATTRIBUTES; - } - - /* Create server pipe handle. */ - err = uv_stdio_pipe_server(loop, - server_pipe, - server_access, - pipe_name, - sizeof(pipe_name)); - if (err) - goto error; - - /* Create child pipe handle. */ - sa.nLength = sizeof sa; - sa.lpSecurityDescriptor = NULL; - sa.bInheritHandle = TRUE; - - child_pipe = CreateFileA(pipe_name, - client_access, - 0, - &sa, - OPEN_EXISTING, - server_pipe->ipc ? FILE_FLAG_OVERLAPPED : 0, - NULL); - if (child_pipe == INVALID_HANDLE_VALUE) { - err = GetLastError(); - goto error; - } - -#ifndef NDEBUG - /* Validate that the pipe was opened in the right mode. */ - { - DWORD mode; - BOOL r = GetNamedPipeHandleState(child_pipe, - &mode, - NULL, - NULL, - NULL, - NULL, - 0); - assert(r == TRUE); - assert(mode == (PIPE_READMODE_BYTE | PIPE_WAIT)); - } -#endif - - /* Do a blocking ConnectNamedPipe. This should not block because we have */ - /* both ends of the pipe created. */ - if (!ConnectNamedPipe(server_pipe->handle, NULL)) { - if (GetLastError() != ERROR_PIPE_CONNECTED) { - err = GetLastError(); - goto error; - } - } - - /* The server end is now readable and/or writable. */ - if (flags & UV_READABLE_PIPE) - server_pipe->flags |= UV_HANDLE_WRITABLE; - if (flags & UV_WRITABLE_PIPE) - server_pipe->flags |= UV_HANDLE_READABLE; - - *child_pipe_ptr = child_pipe; - return 0; - - error: - if (server_pipe->handle != INVALID_HANDLE_VALUE) { - uv_pipe_cleanup(loop, server_pipe); - } - - if (child_pipe != INVALID_HANDLE_VALUE) { - CloseHandle(child_pipe); - } - - return err; -} - - -static int uv__duplicate_handle(uv_loop_t* loop, HANDLE handle, HANDLE* dup) { - HANDLE current_process; - - - /* _get_osfhandle will sometimes return -2 in case of an error. This seems */ - /* to happen when fd <= 2 and the process' corresponding stdio handle is */ - /* set to NULL. Unfortunately DuplicateHandle will happily duplicate */ - /* (HANDLE) -2, so this situation goes unnoticed until someone tries to */ - /* use the duplicate. Therefore we filter out known-invalid handles here. */ - if (handle == INVALID_HANDLE_VALUE || - handle == NULL || - handle == (HANDLE) -2) { - *dup = INVALID_HANDLE_VALUE; - return ERROR_INVALID_HANDLE; - } - - current_process = GetCurrentProcess(); - - if (!DuplicateHandle(current_process, - handle, - current_process, - dup, - 0, - TRUE, - DUPLICATE_SAME_ACCESS)) { - *dup = INVALID_HANDLE_VALUE; - return GetLastError(); - } - - return 0; -} - - -static int uv__duplicate_fd(uv_loop_t* loop, int fd, HANDLE* dup) { - HANDLE handle; - - if (fd == -1) { - *dup = INVALID_HANDLE_VALUE; - return ERROR_INVALID_HANDLE; - } - - handle = uv__get_osfhandle(fd); - return uv__duplicate_handle(loop, handle, dup); -} - - -int uv__create_nul_handle(HANDLE* handle_ptr, - DWORD access) { - HANDLE handle; - SECURITY_ATTRIBUTES sa; - - sa.nLength = sizeof sa; - sa.lpSecurityDescriptor = NULL; - sa.bInheritHandle = TRUE; - - handle = CreateFileW(L"NUL", - access, - FILE_SHARE_READ | FILE_SHARE_WRITE, - &sa, - OPEN_EXISTING, - 0, - NULL); - if (handle == INVALID_HANDLE_VALUE) { - return GetLastError(); - } - - *handle_ptr = handle; - return 0; -} - - -int uv__stdio_create(uv_loop_t* loop, - const uv_process_options_t* options, - BYTE** buffer_ptr) { - BYTE* buffer; - int count, i; - int err; - - count = options->stdio_count; - - if (count < 0 || count > 255) { - /* Only support FDs 0-255 */ - return ERROR_NOT_SUPPORTED; - } else if (count < 3) { - /* There should always be at least 3 stdio handles. */ - count = 3; - } - - /* Allocate the child stdio buffer */ - buffer = (BYTE*) uv__malloc(CHILD_STDIO_SIZE(count)); - if (buffer == NULL) { - return ERROR_OUTOFMEMORY; - } - - /* Prepopulate the buffer with INVALID_HANDLE_VALUE handles so we can */ - /* clean up on failure. */ - CHILD_STDIO_COUNT(buffer) = count; - for (i = 0; i < count; i++) { - CHILD_STDIO_CRT_FLAGS(buffer, i) = 0; - CHILD_STDIO_HANDLE(buffer, i) = INVALID_HANDLE_VALUE; - } - - for (i = 0; i < count; i++) { - uv_stdio_container_t fdopt; - if (i < options->stdio_count) { - fdopt = options->stdio[i]; - } else { - fdopt.flags = UV_IGNORE; - } - - switch (fdopt.flags & (UV_IGNORE | UV_CREATE_PIPE | UV_INHERIT_FD | - UV_INHERIT_STREAM)) { - case UV_IGNORE: - /* Starting a process with no stdin/stout/stderr can confuse it. */ - /* So no matter what the user specified, we make sure the first */ - /* three FDs are always open in their typical modes, e.g. stdin */ - /* be readable and stdout/err should be writable. For FDs > 2, don't */ - /* do anything - all handles in the stdio buffer are initialized with */ - /* INVALID_HANDLE_VALUE, which should be okay. */ - if (i <= 2) { - DWORD access = (i == 0) ? FILE_GENERIC_READ : - FILE_GENERIC_WRITE | FILE_READ_ATTRIBUTES; - - err = uv__create_nul_handle(&CHILD_STDIO_HANDLE(buffer, i), - access); - if (err) - goto error; - - CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FDEV; - } - break; - - case UV_CREATE_PIPE: { - /* Create a pair of two connected pipe ends; one end is turned into */ - /* an uv_pipe_t for use by the parent. The other one is given to */ - /* the child. */ - uv_pipe_t* parent_pipe = (uv_pipe_t*) fdopt.data.stream; - HANDLE child_pipe = INVALID_HANDLE_VALUE; - - /* Create a new, connected pipe pair. stdio[i].stream should point */ - /* to an uninitialized, but not connected pipe handle. */ - assert(fdopt.data.stream->type == UV_NAMED_PIPE); - assert(!(fdopt.data.stream->flags & UV_HANDLE_CONNECTION)); - assert(!(fdopt.data.stream->flags & UV_HANDLE_PIPESERVER)); - - err = uv__create_stdio_pipe_pair(loop, - parent_pipe, - &child_pipe, - fdopt.flags); - if (err) - goto error; - - CHILD_STDIO_HANDLE(buffer, i) = child_pipe; - CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FPIPE; - break; - } - - case UV_INHERIT_FD: { - /* Inherit a raw FD. */ - HANDLE child_handle; - - /* Make an inheritable duplicate of the handle. */ - err = uv__duplicate_fd(loop, fdopt.data.fd, &child_handle); - if (err) { - /* If fdopt.data.fd is not valid and fd fd <= 2, then ignore the */ - /* error. */ - if (fdopt.data.fd <= 2 && err == ERROR_INVALID_HANDLE) { - CHILD_STDIO_CRT_FLAGS(buffer, i) = 0; - CHILD_STDIO_HANDLE(buffer, i) = INVALID_HANDLE_VALUE; - break; - } - goto error; - } - - /* Figure out what the type is. */ - switch (GetFileType(child_handle)) { - case FILE_TYPE_DISK: - CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN; - break; - - case FILE_TYPE_PIPE: - CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FPIPE; - - case FILE_TYPE_CHAR: - case FILE_TYPE_REMOTE: - CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FDEV; - break; - - case FILE_TYPE_UNKNOWN: - if (GetLastError() != 0) { - err = GetLastError(); - CloseHandle(child_handle); - goto error; - } - CHILD_STDIO_CRT_FLAGS(buffer, i) = FOPEN | FDEV; - break; - - default: - assert(0); - return -1; - } - - CHILD_STDIO_HANDLE(buffer, i) = child_handle; - break; - } - - case UV_INHERIT_STREAM: { - /* Use an existing stream as the stdio handle for the child. */ - HANDLE stream_handle, child_handle; - unsigned char crt_flags; - uv_stream_t* stream = fdopt.data.stream; - - /* Leech the handle out of the stream. */ - if (stream->type == UV_TTY) { - stream_handle = ((uv_tty_t*) stream)->handle; - crt_flags = FOPEN | FDEV; - } else if (stream->type == UV_NAMED_PIPE && - stream->flags & UV_HANDLE_CONNECTION) { - stream_handle = ((uv_pipe_t*) stream)->handle; - crt_flags = FOPEN | FPIPE; - } else { - stream_handle = INVALID_HANDLE_VALUE; - crt_flags = 0; - } - - if (stream_handle == NULL || - stream_handle == INVALID_HANDLE_VALUE) { - /* The handle is already closed, or not yet created, or the */ - /* stream type is not supported. */ - err = ERROR_NOT_SUPPORTED; - goto error; - } - - /* Make an inheritable copy of the handle. */ - err = uv__duplicate_handle(loop, stream_handle, &child_handle); - if (err) - goto error; - - CHILD_STDIO_HANDLE(buffer, i) = child_handle; - CHILD_STDIO_CRT_FLAGS(buffer, i) = crt_flags; - break; - } - - default: - assert(0); - return -1; - } - } - - *buffer_ptr = buffer; - return 0; - - error: - uv__stdio_destroy(buffer); - return err; -} - - -void uv__stdio_destroy(BYTE* buffer) { - int i, count; - - count = CHILD_STDIO_COUNT(buffer); - for (i = 0; i < count; i++) { - HANDLE handle = CHILD_STDIO_HANDLE(buffer, i); - if (handle != INVALID_HANDLE_VALUE) { - CloseHandle(handle); - } - } - - uv__free(buffer); -} - - -void uv__stdio_noinherit(BYTE* buffer) { - int i, count; - - count = CHILD_STDIO_COUNT(buffer); - for (i = 0; i < count; i++) { - HANDLE handle = CHILD_STDIO_HANDLE(buffer, i); - if (handle != INVALID_HANDLE_VALUE) { - SetHandleInformation(handle, HANDLE_FLAG_INHERIT, 0); - } - } -} - - -int uv__stdio_verify(BYTE* buffer, WORD size) { - unsigned int count; - - /* Check the buffer pointer. */ - if (buffer == NULL) - return 0; - - /* Verify that the buffer is at least big enough to hold the count. */ - if (size < CHILD_STDIO_SIZE(0)) - return 0; - - /* Verify if the count is within range. */ - count = CHILD_STDIO_COUNT(buffer); - if (count > 256) - return 0; - - /* Verify that the buffer size is big enough to hold info for N FDs. */ - if (size < CHILD_STDIO_SIZE(count)) - return 0; - - return 1; -} - - -WORD uv__stdio_size(BYTE* buffer) { - return (WORD) CHILD_STDIO_SIZE(CHILD_STDIO_COUNT((buffer))); -} - - -HANDLE uv__stdio_handle(BYTE* buffer, int fd) { - return CHILD_STDIO_HANDLE(buffer, fd); -} -- cgit v1.2.3-70-g09d2