2009-10-30 20:10:56 +03:00
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/*-
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* Copyright (c) 2009 Michihiro NAKAJIMA
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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2009-11-04 21:09:59 +03:00
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#include "archive_private.h"
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2009-10-30 20:10:56 +03:00
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#if defined(_WIN32) && !defined(__CYGWIN__)
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#include "filter_fork.h"
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pid_t
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__archive_create_child(const char *path, int *child_stdin, int *child_stdout)
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{
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HANDLE childStdout[2], childStdin[2], childStdinWr, childStdoutRd;
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SECURITY_ATTRIBUTES secAtts;
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STARTUPINFO staInfo;
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PROCESS_INFORMATION childInfo;
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char cmd[MAX_PATH];
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DWORD mode;
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secAtts.nLength = sizeof(SECURITY_ATTRIBUTES);
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secAtts.bInheritHandle = TRUE;
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secAtts.lpSecurityDescriptor = NULL;
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if (CreatePipe(&childStdout[0], &childStdout[1], &secAtts, 0) == 0)
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goto fail;
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if (DuplicateHandle(GetCurrentProcess(), childStdout[0],
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GetCurrentProcess(), &childStdoutRd, 0, FALSE,
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DUPLICATE_SAME_ACCESS) == 0) {
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CloseHandle(childStdout[0]);
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CloseHandle(childStdout[1]);
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goto fail;
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}
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CloseHandle(childStdout[0]);
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if (CreatePipe(&childStdin[0], &childStdin[1], &secAtts, 0) == 0) {
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CloseHandle(childStdoutRd);
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CloseHandle(childStdout[1]);
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goto fail;
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}
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if (DuplicateHandle(GetCurrentProcess(), childStdin[1],
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GetCurrentProcess(), &childStdinWr, 0, FALSE,
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DUPLICATE_SAME_ACCESS) == 0) {
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CloseHandle(childStdoutRd);
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CloseHandle(childStdout[1]);
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CloseHandle(childStdin[0]);
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CloseHandle(childStdin[1]);
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goto fail;
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}
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CloseHandle(childStdin[1]);
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memset(&staInfo, 0, sizeof(staInfo));
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staInfo.cb = sizeof(staInfo);
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staInfo.hStdOutput = childStdout[1];
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staInfo.hStdInput = childStdin[0];
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staInfo.wShowWindow = SW_HIDE;
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staInfo.dwFlags = STARTF_USEFILLATTRIBUTE | STARTF_USECOUNTCHARS |
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STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
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strncpy(cmd, path, sizeof(cmd)-1);
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cmd[sizeof(cmd)-1] = '\0';
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if (CreateProcessA(NULL, cmd, NULL, NULL, TRUE, 0, NULL, NULL,
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&staInfo, &childInfo) == 0) {
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CloseHandle(childStdoutRd);
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CloseHandle(childStdout[1]);
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CloseHandle(childStdin[0]);
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CloseHandle(childStdinWr);
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goto fail;
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}
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WaitForInputIdle(childInfo.hProcess, INFINITE);
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CloseHandle(childInfo.hProcess);
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CloseHandle(childInfo.hThread);
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mode = PIPE_NOWAIT;
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SetNamedPipeHandleState(childStdoutRd, &mode, NULL, NULL);
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*child_stdout = _open_osfhandle((intptr_t)childStdoutRd, _O_RDONLY);
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*child_stdin = _open_osfhandle((intptr_t)childStdinWr, _O_WRONLY);
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return (childInfo.dwProcessId);
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fail:
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return (-1);
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}
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void
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__archive_check_child(int in, int out)
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{
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Sleep(100);
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}
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#endif /* _WIN32 && !__CYGWIN__ */
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