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/*-
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* Copyright (c) 2009-2012 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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#if defined(_WIN32) && !defined(__CYGWIN__)
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#include "archive_cmdline_private.h"
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#include "archive_string.h"
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#include "filter_fork.h"
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pid_t
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__archive_create_child(const char *cmd, int *child_stdin, int *child_stdout)
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{
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HANDLE childStdout[2], childStdin[2],childStderr;
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SECURITY_ATTRIBUTES secAtts;
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STARTUPINFOA staInfo;
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PROCESS_INFORMATION childInfo;
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struct archive_string cmdline;
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struct archive_string fullpath;
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struct archive_cmdline *acmd;
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char *arg0, *ext;
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int i, l;
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DWORD fl, fl_old;
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childStdout[0] = childStdout[1] = INVALID_HANDLE_VALUE;
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childStdin[0] = childStdin[1] = INVALID_HANDLE_VALUE;
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childStderr = INVALID_HANDLE_VALUE;
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archive_string_init(&cmdline);
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archive_string_init(&fullpath);
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acmd = __archive_cmdline_allocate();
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if (acmd == NULL)
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goto fail;
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if (__archive_cmdline_parse(acmd, cmd) != ARCHIVE_OK)
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goto fail;
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/*
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* Search the full path of 'path'.
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* NOTE: This does not need if we give CreateProcessA 'path' as
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* a part of the cmdline and give CreateProcessA NULL as first
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* parameter, but I do not like that way.
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*/
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ext = strrchr(acmd->path, '.');
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if (ext == NULL || strlen(ext) > 4)
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/* 'path' does not have a proper extension, so we have to
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* give SearchPath() ".exe" as the extension. */
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ext = ".exe";
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else
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ext = NULL;/* 'path' has an extension. */
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fl = MAX_PATH;
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do {
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if (archive_string_ensure(&fullpath, fl) == NULL)
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goto fail;
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fl_old = fl;
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fl = SearchPathA(NULL, acmd->path, ext, fl, fullpath.s,
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&arg0);
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} while (fl != 0 && fl > fl_old);
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if (fl == 0)
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goto fail;
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/*
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* Make a command line.
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*/
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for (l = 0, i = 0; acmd->argv[i] != NULL; i++) {
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if (i == 0)
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continue;
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l += (int)strlen(acmd->argv[i]) + 1;
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}
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if (archive_string_ensure(&cmdline, l + 1) == NULL)
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goto fail;
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for (i = 0; acmd->argv[i] != NULL; i++) {
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if (i == 0) {
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const char *p, *sp;
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if ((p = strchr(acmd->argv[i], '/')) != NULL ||
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(p = strchr(acmd->argv[i], '\\')) != NULL)
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p++;
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else
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p = acmd->argv[i];
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if ((sp = strchr(p, ' ')) != NULL)
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archive_strappend_char(&cmdline, '"');
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archive_strcat(&cmdline, p);
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if (sp != NULL)
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archive_strappend_char(&cmdline, '"');
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} else {
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archive_strappend_char(&cmdline, ' ');
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archive_strcat(&cmdline, acmd->argv[i]);
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}
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}
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if (i <= 1) {
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const char *sp;
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if ((sp = strchr(arg0, ' ')) != NULL)
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archive_strappend_char(&cmdline, '"');
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archive_strcat(&cmdline, arg0);
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if (sp != NULL)
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archive_strappend_char(&cmdline, '"');
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}
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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 (!SetHandleInformation(childStdout[0], HANDLE_FLAG_INHERIT, 0))
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goto fail;
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if (CreatePipe(&childStdin[0], &childStdin[1], &secAtts, 0) == 0)
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goto fail;
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if (!SetHandleInformation(childStdin[1], HANDLE_FLAG_INHERIT, 0))
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goto fail;
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if (DuplicateHandle(GetCurrentProcess(), GetStdHandle(STD_ERROR_HANDLE),
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GetCurrentProcess(), &childStderr, 0, TRUE,
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DUPLICATE_SAME_ACCESS) == 0)
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goto fail;
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memset(&staInfo, 0, sizeof(staInfo));
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staInfo.cb = sizeof(staInfo);
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staInfo.hStdError = childStderr;
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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_USESTDHANDLES | STARTF_USESHOWWINDOW;
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if (CreateProcessA(fullpath.s, cmdline.s, NULL, NULL, TRUE, 0,
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NULL, NULL, &staInfo, &childInfo) == 0)
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goto fail;
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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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*child_stdout = _open_osfhandle((intptr_t)childStdout[0], _O_RDONLY);
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*child_stdin = _open_osfhandle((intptr_t)childStdin[1], _O_WRONLY);
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CloseHandle(childStdout[1]);
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CloseHandle(childStdin[0]);
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archive_string_free(&cmdline);
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archive_string_free(&fullpath);
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__archive_cmdline_free(acmd);
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return (childInfo.dwProcessId);
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fail:
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if (childStdout[0] != INVALID_HANDLE_VALUE)
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CloseHandle(childStdout[0]);
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if (childStdout[1] != INVALID_HANDLE_VALUE)
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CloseHandle(childStdout[1]);
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if (childStdin[0] != INVALID_HANDLE_VALUE)
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CloseHandle(childStdin[0]);
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if (childStdin[1] != INVALID_HANDLE_VALUE)
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CloseHandle(childStdin[1]);
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if (childStderr != INVALID_HANDLE_VALUE)
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CloseHandle(childStderr);
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archive_string_free(&cmdline);
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archive_string_free(&fullpath);
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__archive_cmdline_free(acmd);
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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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(void)in; /* UNUSED */
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(void)out; /* UNUSED */
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Sleep(100);
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}
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#endif /* _WIN32 && !__CYGWIN__ */
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