c39ffff404
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6030 212acab6-be3b-0410-9dea-997c60f758d6
109 lines
3 KiB
C
109 lines
3 KiB
C
/*
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* substart.c
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*
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* Copyright (c) 2010 Thomas Gaugler
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*
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* Licensed under the zlib/libpng license (the "License");
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* you may not use this file except in compliance with the License.
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*
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* Licence details can be found in the file COPYING.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty.
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*/
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#include <windows.h>
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#include <tchar.h>
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#include <stdio.h>
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/* Macro to determine the string length of a constant */
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#define CONST_STRLEN(x) ((sizeof(x) / sizeof(*x)) - 1)
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/* Name of the sub folder containing the executable
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invoked by this stub executable.
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*/
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static const TCHAR SUBFOLDER[] = _T("Bin");
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/* Redirect to an executable located in a sub folder relative to
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this starter executable. Name of the stub executable has to
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match with the one in the sub folder.
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The command line parameters are passed along.
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*/
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int main( int argc, char *argv[] )
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{
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int err = ERROR_SUCCESS;
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TCHAR szPath[MAX_PATH];
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/* Get the full path of the running executable */
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if ( GetModuleFileName( NULL, szPath, MAX_PATH ) )
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{
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size_t len = _tcslen(szPath);
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size_t offset = len + CONST_STRLEN(SUBFOLDER) + 1;
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err = ERROR_BAD_PATHNAME;
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if (offset < MAX_PATH)
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{
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/* Move file name part of full path by length of sub folder
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name and thereafter fill in the sub folder name in the
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newly created gap.
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*/
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register TCHAR *p = szPath + len;
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register TCHAR *q = szPath + offset;
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while (p > szPath)
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{
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*(q--) = *(p--);
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if (*p == '\\')
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{
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/* Fill in sub folder name */
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*q = *p;
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q = ++p;
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p = (TCHAR *)SUBFOLDER;
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while (*p)
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{
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*(q++) = *(p++);
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}
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err = ERROR_SUCCESS;
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break;
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}
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}
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}
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if (err)
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{
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_tprintf( _T("Path too long: %s\n"), szPath );
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}
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else
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{
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STARTUPINFO si;
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PROCESS_INFORMATION pi;
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ZeroMemory( &si, sizeof(si) );
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si.cb = sizeof(si);
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ZeroMemory( &pi, sizeof(pi) );
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/* Start a subprocess running the executable of the
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sub folder of the cuand wait for its completion */
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if ( CreateProcess( szPath, GetCommandLine(), NULL, NULL,
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FALSE, 0, NULL, NULL, &si, &pi ) )
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{
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WaitForSingleObject( pi.hProcess, INFINITE );
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CloseHandle( pi.hProcess );
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CloseHandle( pi.hThread );
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}
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else
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{
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err = GetLastError();
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_tprintf( _T("CreateProcess (%s) failed (%d).\n"), szPath, err );
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}
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}
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}
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else
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{
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err = GetLastError();
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_tprintf( _T("GetModuleFileName failed (%d).\n"), err );
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}
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return err;
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}
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