191 lines
4.5 KiB
C
191 lines
4.5 KiB
C
/*
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* Start a program using ShellExecuteEx, optionally wait for it to finish
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* Compatible with Microsoft's "c:\windows\command\start.exe"
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*
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* Copyright 2003 Dan Kegel
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <windows.h>
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#include <winuser.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <shlobj.h>
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#include "resources.h"
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/**
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Output given message to stdout without formatting.
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*/
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static void output(const char *message)
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{
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DWORD count;
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WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), message, strlen(message), &count, NULL);
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}
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/**
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Output given message,
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followed by ": ",
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followed by description of given GetLastError() value to stdout,
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followed by a trailing newline,
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then terminate.
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*/
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static void fatal_error(const char *msg, DWORD error_code)
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{
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LPVOID lpMsgBuf;
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int status;
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output(msg);
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output(": ");
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status = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, error_code, 0, (LPTSTR) & lpMsgBuf, 0, NULL);
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if (!status) {
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output("FormatMessage failed\n");
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} else {
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output(lpMsgBuf);
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LocalFree((HLOCAL) lpMsgBuf);
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output("\n");
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}
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ExitProcess(1);
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}
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/**
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Output given message from string table,
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followed by ": ",
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followed by description of given GetLastError() value to stdout,
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followed by a trailing newline,
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then terminate.
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*/
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static void fatal_string_error(int which, DWORD error_code)
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{
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char msg[2048];
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if (!LoadString(GetModuleHandle(NULL), which,
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msg, sizeof(msg)))
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fatal_error("LoadString failed", GetLastError());
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fatal_error(msg, error_code);
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}
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static void fatal_string(int which)
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{
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char msg[2048];
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if (!LoadString(GetModuleHandle(NULL), which,
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msg, sizeof(msg)))
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fatal_error("LoadString failed", GetLastError());
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output(msg);
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ExitProcess(1);
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}
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static void usage()
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{
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fatal_string(STRING_USAGE);
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}
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static void license()
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{
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fatal_string(STRING_LICENSE);
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}
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int main(int argc, char *argv[])
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{
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char arguments[MAX_PATH];
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char *p;
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SHELLEXECUTEINFO sei;
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int argi;
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memset(&sei, 0, sizeof(sei));
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sei.cbSize = sizeof(sei);
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sei.lpVerb = "open";
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sei.nShow = SW_SHOWNORMAL;
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/* Dunno what these mean, but it looks like winMe's start uses them */
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sei.fMask = SEE_MASK_FLAG_DDEWAIT|SEE_MASK_FLAG_NO_UI;
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/* Canonical Microsoft commandline flag processing:
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* flags start with /, are case insensitive,
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* and may be run together in same word.
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*/
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for (argi=1; argi<argc; argi++) {
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int ci;
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if (argv[argi][0] != '/')
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break;
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/* Handle all options in this word */
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for (ci=0; argv[argi][ci]; ) {
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/* Skip slash */
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ci++;
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switch(argv[argi][ci]) {
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case 'l':
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case 'L':
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license();
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break; /* notreached */
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case 'm':
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case 'M':
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if (argv[argi][ci+1] == 'a' || argv[argi][ci+1] == 'A')
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sei.nShow = SW_SHOWMAXIMIZED;
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else
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sei.nShow = SW_SHOWMINIMIZED;
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break;
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case 'r':
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case 'R':
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/* sei.nShow = SW_SHOWNORMAL; */
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break;
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case 'w':
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case 'W':
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sei.fMask |= SEE_MASK_NOCLOSEPROCESS;
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break;
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default:
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printf("Option '%s' not recognized\n", argv[argi]+ci-1);
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usage();
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}
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/* Skip to next slash */
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while (argv[argi][ci] && (argv[argi][ci] != '/'))
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ci++;
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}
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}
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if (argi == argc)
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usage();
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sei.lpFile = argv[argi++];
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/* FIXME - prone to overflow */
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arguments[0] = 0;
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for (p = arguments; argi < argc; argi++)
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p += sprintf(p, " %s", argv[argi]);
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sei.lpParameters = arguments;
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if (!ShellExecuteEx(&sei))
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fatal_string_error(STRING_EXECFAIL, GetLastError());
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if (sei.fMask & SEE_MASK_NOCLOSEPROCESS) {
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DWORD exitcode;
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DWORD waitcode;
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waitcode = WaitForSingleObject(sei.hProcess, INFINITE);
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if (waitcode)
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fatal_error("WaitForSingleObject", GetLastError());
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if (!GetExitCodeProcess(sei.hProcess, &exitcode))
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fatal_error("GetExitCodeProcess", GetLastError());
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/* fixme: haven't tested whether exit code works properly */
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ExitProcess(exitcode);
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}
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ExitProcess(0);
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}
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