a85b5759f3
These files were pulled from the 1.6.3 release tarball. This new version builds against OpenSSL version 1.1 which will be the default in the new Debian Stable which is due to be released RealSoonNow (tm).
322 lines
10 KiB
C
322 lines
10 KiB
C
/*
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* winrc/w_inst.h - install and remove functions
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*
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* Copyright (c) 2009, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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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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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* Contains install and remove functions that manipulate the
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* windows services API and windows registry.
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*/
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#include "config.h"
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#include "winrc/w_inst.h"
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#include "winrc/win_svc.h"
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void wsvc_err2str(char* str, size_t len, const char* fixed, DWORD err)
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{
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LPTSTR buf;
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if(FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_ALLOCATE_BUFFER,
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NULL, err, 0, (LPTSTR)&buf, 0, NULL) == 0) {
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/* could not format error message */
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snprintf(str, len, "%s GetLastError=%d", fixed, (int)err);
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return;
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}
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snprintf(str, len, "%s (err=%d): %s", fixed, (int)err, buf);
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LocalFree(buf);
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}
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/** exit with windows error */
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static void
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fatal_win(FILE* out, const char* str)
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{
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char e[256];
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wsvc_err2str(e, sizeof(e), str, (int)GetLastError());
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if(out) fprintf(out, "%s\n", e);
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else fprintf(stderr, "%s\n", e);
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exit(1);
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}
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/** install registry entries for eventlog */
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static void
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event_reg_install(FILE* out, const char* pathname)
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{
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char buf[1024];
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HKEY hk;
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DWORD t;
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if(out) fprintf(out, "install reg entries for %s\n", pathname);
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snprintf(buf, sizeof(buf), "SYSTEM\\CurrentControlSet\\Services"
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"\\EventLog\\Application\\%s", SERVICE_NAME);
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if(RegCreateKeyEx(HKEY_LOCAL_MACHINE, (LPCTSTR)buf,
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0, /* reserved, mustbezero */
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NULL, /* class of key, ignored */
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REG_OPTION_NON_VOLATILE, /* values saved on disk */
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KEY_WRITE, /* we want write permission */
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NULL, /* use default security descriptor */
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&hk, /* result */
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NULL)) /* not interested if key new or existing */
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fatal_win(out, "could not create registry key");
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/* message file */
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if(RegSetValueEx(hk, (LPCTSTR)"EventMessageFile",
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0, /* reserved, mustbezero */
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REG_EXPAND_SZ, /* value type (string w env subst) */
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(BYTE*)pathname, /* data */
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(DWORD)strlen(pathname)+1)) /* length of data */
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{
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RegCloseKey(hk);
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fatal_win(out, "could not registry set EventMessageFile");
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}
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/* event types */
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t = EVENTLOG_SUCCESS | EVENTLOG_ERROR_TYPE | EVENTLOG_WARNING_TYPE
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| EVENTLOG_INFORMATION_TYPE;
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if(RegSetValueEx(hk, (LPCTSTR)"TypesSupported", 0, REG_DWORD,
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(LPBYTE)&t, sizeof(t))) {
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RegCloseKey(hk);
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fatal_win(out, "could not registry set TypesSupported");
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}
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/* category message file */
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if(RegSetValueEx(hk, (LPCTSTR)"CategoryMessageFile", 0, REG_EXPAND_SZ,
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(BYTE*)pathname, (DWORD)strlen(pathname)+1)) {
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RegCloseKey(hk);
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fatal_win(out, "could not registry set CategoryMessageFile");
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}
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t = 1;
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if(RegSetValueEx(hk, (LPCTSTR)"CategoryCount", 0, REG_DWORD,
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(LPBYTE)&t, sizeof(t))) {
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RegCloseKey(hk);
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fatal_win(out, "could not registry set CategoryCount");
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}
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RegCloseKey(hk);
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if(out) fprintf(out, "installed reg entries\n");
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}
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/** remove registry entries for eventlog */
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static void
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event_reg_remove(FILE* out)
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{
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char buf[1024];
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HKEY hk;
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if(out) fprintf(out, "remove reg entries\n");
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snprintf(buf, sizeof(buf), "SYSTEM\\CurrentControlSet\\Services"
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"\\EventLog\\Application");
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if(RegCreateKeyEx(HKEY_LOCAL_MACHINE, (LPCTSTR)buf,
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0, /* reserved, mustbezero */
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NULL, /* class of key, ignored */
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REG_OPTION_NON_VOLATILE, /* values saved on disk */
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DELETE, /* we want key delete permission */
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NULL, /* use default security descriptor */
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&hk, /* result */
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NULL)) /* not interested if key new or existing */
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fatal_win(out, "could not open registry key");
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if(RegDeleteKey(hk, (LPCTSTR)SERVICE_NAME)) {
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RegCloseKey(hk);
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fatal_win(out, "could not delete registry key");
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}
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RegCloseKey(hk);
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if(out) fprintf(out, "removed reg entries\n");
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}
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/**
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* put quotes around string. Needs one space in front
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* @param out: debugfile
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* @param str: to be quoted.
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* @param maxlen: max length of the string buffer.
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*/
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static void
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quote_it(FILE* out, char* str, size_t maxlen)
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{
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if(strlen(str) == maxlen) {
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if(out) fprintf(out, "string too long %s", str);
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exit(1);
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}
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str[0]='"';
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str[strlen(str)+1]=0;
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str[strlen(str)]='"';
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}
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/** change suffix */
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static void
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change(FILE* out, char* path, size_t max, const char* from, const char* to)
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{
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size_t fromlen = strlen(from);
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size_t tolen = strlen(to);
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size_t pathlen = strlen(path);
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if(pathlen - fromlen + tolen >= max) {
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if(out) fprintf(out, "string too long %s", path);
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exit(1);
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}
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snprintf(path+pathlen-fromlen, max-(pathlen-fromlen), "%s", to);
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}
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/* Install service in servicecontrolmanager */
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void
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wsvc_install(FILE* out, const char* rename)
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{
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SC_HANDLE scm;
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SC_HANDLE sv;
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TCHAR path[2*MAX_PATH+4+256];
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TCHAR path_config[2*MAX_PATH+4+256];
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if(out) fprintf(out, "installing unbound service\n");
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if(!GetModuleFileName(NULL, path+1, MAX_PATH))
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fatal_win(out, "could not GetModuleFileName");
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/* change 'unbound-service-install' to 'unbound' */
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if(rename) {
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change(out, path+1, sizeof(path)-1, rename, "unbound.exe");
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memmove(path_config+1, path+1, sizeof(path)-1);
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change(out, path_config+1, sizeof(path_config)-1,
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"unbound.exe", "service.conf");
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}
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event_reg_install(out, path+1);
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/* have to quote it because of spaces in directory names */
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/* could append arguments to be sent to ServiceMain */
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quote_it(out, path, sizeof(path));
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/* if we started in a different directory, also read config from it. */
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if(rename) {
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quote_it(out, path_config, sizeof(path_config));
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strcat(path, " -c ");
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strcat(path, path_config);
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}
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strcat(path, " -w service");
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scm = OpenSCManager(NULL, NULL, (int)SC_MANAGER_CREATE_SERVICE);
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if(!scm) fatal_win(out, "could not OpenSCManager");
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sv = CreateService(
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scm,
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SERVICE_NAME, /* name of service */
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"Unbound DNS validator", /* display name */
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SERVICE_ALL_ACCESS, /* desired access */
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SERVICE_WIN32_OWN_PROCESS, /* service type */
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SERVICE_AUTO_START, /* start type */
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SERVICE_ERROR_NORMAL, /* error control type */
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path, /* path to service's binary */
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NULL, /* no load ordering group */
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NULL, /* no tag identifier */
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NULL, /* no deps */
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NULL, /* on LocalSystem */
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NULL /* no password */
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);
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if(!sv) {
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CloseServiceHandle(scm);
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fatal_win(out, "could not CreateService");
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}
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CloseServiceHandle(sv);
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CloseServiceHandle(scm);
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if(out) fprintf(out, "unbound service installed\n");
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}
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/* Remove installed service from servicecontrolmanager */
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void
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wsvc_remove(FILE* out)
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{
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SC_HANDLE scm;
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SC_HANDLE sv;
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if(out) fprintf(out, "removing unbound service\n");
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scm = OpenSCManager(NULL, NULL, (int)SC_MANAGER_ALL_ACCESS);
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if(!scm) fatal_win(out, "could not OpenSCManager");
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sv = OpenService(scm, SERVICE_NAME, DELETE);
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if(!sv) {
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CloseServiceHandle(scm);
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fatal_win(out, "could not OpenService");
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}
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if(!DeleteService(sv)) {
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CloseServiceHandle(sv);
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CloseServiceHandle(scm);
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fatal_win(out, "could not DeleteService");
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}
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CloseServiceHandle(sv);
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CloseServiceHandle(scm);
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event_reg_remove(out);
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if(out) fprintf(out, "unbound service removed\n");
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}
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/* Start daemon */
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void
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wsvc_rc_start(FILE* out)
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{
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SC_HANDLE scm;
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SC_HANDLE sv;
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if(out) fprintf(out, "start unbound service\n");
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scm = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
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if(!scm) fatal_win(out, "could not OpenSCManager");
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sv = OpenService(scm, SERVICE_NAME, SERVICE_START);
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if(!sv) {
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CloseServiceHandle(scm);
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fatal_win(out, "could not OpenService");
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}
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if(!StartService(sv, 0, NULL)) {
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CloseServiceHandle(sv);
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CloseServiceHandle(scm);
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fatal_win(out, "could not StartService");
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}
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CloseServiceHandle(sv);
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CloseServiceHandle(scm);
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if(out) fprintf(out, "unbound service started\n");
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}
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/* Stop daemon */
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void
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wsvc_rc_stop(FILE* out)
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{
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SC_HANDLE scm;
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SC_HANDLE sv;
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SERVICE_STATUS st;
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if(out) fprintf(out, "stop unbound service\n");
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scm = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
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if(!scm) fatal_win(out, "could not OpenSCManager");
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sv = OpenService(scm, SERVICE_NAME, SERVICE_STOP);
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if(!sv) {
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CloseServiceHandle(scm);
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fatal_win(out, "could not OpenService");
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}
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if(!ControlService(sv, SERVICE_CONTROL_STOP, &st)) {
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CloseServiceHandle(sv);
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CloseServiceHandle(scm);
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fatal_win(out, "could not ControlService");
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}
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CloseServiceHandle(sv);
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CloseServiceHandle(scm);
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if(out) fprintf(out, "unbound service stopped\n");
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}
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