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https://github.com/reactos/reactos.git
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ae9702fcec
- The aliases ("macros") definition files have the same format as what
is output by DosKey when one displays the list of defined aliases with
the /macros: command-line switch. It should then, in particular,
understand the format where executable names are also specified:
[exename1]
alias1=command1
...
[exename2]
aliasN=commandN
...
We now behave similarly as Windows' version of this utility in that
regard.
- Use ARRAYSIZE() when needed.
- Take the opportunity to add a license header to the source file.
361 lines
9.3 KiB
C
361 lines
9.3 KiB
C
/*
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* PROJECT: ReactOS DosKey Command
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* LICENSE: GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
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* PURPOSE: Provides history and command aliases management for
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* command-line programs.
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* COPYRIGHT: Copyright 2008 Christoph von Wittich
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* Copyright 2013-2017 Hermès Bélusca-Maïto
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*/
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#include <stdio.h>
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#include <wchar.h>
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#include <locale.h>
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#include <windef.h>
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#include <winbase.h>
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#include <winuser.h>
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#include <wincon.h>
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/* Console API functions which are absent from wincon.h */
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#define EXENAME_LENGTH (255 + 1)
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VOID
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WINAPI
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ExpungeConsoleCommandHistoryW(LPCWSTR lpExeName);
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DWORD
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WINAPI
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GetConsoleCommandHistoryW(LPWSTR lpHistory,
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DWORD cbHistory,
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LPCWSTR lpExeName);
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DWORD
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WINAPI
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GetConsoleCommandHistoryLengthW(LPCWSTR lpExeName);
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BOOL
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WINAPI
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SetConsoleNumberOfCommandsW(DWORD dwNumCommands,
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LPCWSTR lpExeName);
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#include "doskey.h"
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#define MAX_STRING 2000
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WCHAR szStringBuf[MAX_STRING];
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LPWSTR pszExeName = L"cmd.exe";
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static VOID SetInsert(DWORD dwFlag)
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{
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/*
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* NOTE: Enabling the ENABLE_INSERT_MODE mode can also be done by calling
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* kernel32:SetConsoleCommandHistoryMode(CONSOLE_OVERSTRIKE) (deprecated).
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*/
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DWORD dwMode;
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HANDLE hConsole = GetStdHandle(STD_INPUT_HANDLE);
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GetConsoleMode(hConsole, &dwMode);
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dwMode |= ENABLE_EXTENDED_FLAGS;
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SetConsoleMode(hConsole, (dwMode & ~ENABLE_INSERT_MODE) | dwFlag);
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}
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static VOID PrintHistory(VOID)
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{
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DWORD Length = GetConsoleCommandHistoryLengthW(pszExeName);
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PBYTE HistBuf;
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WCHAR *Hist;
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WCHAR *HistEnd;
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HistBuf = HeapAlloc(GetProcessHeap(),
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HEAP_ZERO_MEMORY,
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Length);
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if (!HistBuf) return;
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Hist = (WCHAR *)HistBuf;
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HistEnd = (WCHAR *)&HistBuf[Length];
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if (GetConsoleCommandHistoryW(Hist, Length, pszExeName))
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{
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for (; Hist < HistEnd; Hist += wcslen(Hist) + 1)
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{
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wprintf(L"%s\n", Hist);
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}
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}
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HeapFree(GetProcessHeap(), 0, HistBuf);
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}
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static INT SetMacro(LPWSTR definition)
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{
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WCHAR *name, *nameend, *text, temp;
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name = definition;
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while (*name == L' ')
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name++;
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/* error if no '=' found */
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if ((nameend = wcschr(name, L'=')) != NULL)
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{
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text = nameend + 1;
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while (*text == L' ')
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text++;
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while (nameend > name && nameend[-1] == L' ')
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nameend--;
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/* Split rest into name and substitute */
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temp = *nameend;
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*nameend = L'\0';
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/* Don't allow spaces in the name, since such a macro would be unusable */
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if (!wcschr(name, L' ') && AddConsoleAliasW(name, text, pszExeName))
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return 0;
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*nameend = temp;
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}
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LoadStringW(GetModuleHandle(NULL),
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IDS_INVALID_MACRO_DEF,
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szStringBuf,
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ARRAYSIZE(szStringBuf));
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wprintf(szStringBuf, definition);
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return 1;
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}
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static VOID PrintMacros(LPWSTR pszExeName, LPWSTR Indent)
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{
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DWORD Length = GetConsoleAliasesLengthW(pszExeName);
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PBYTE AliasBuf;
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WCHAR *Alias;
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WCHAR *AliasEnd;
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AliasBuf = HeapAlloc(GetProcessHeap(),
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HEAP_ZERO_MEMORY,
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Length * sizeof(BYTE));
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if (!AliasBuf) return;
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Alias = (WCHAR *)AliasBuf;
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AliasEnd = (WCHAR *)&AliasBuf[Length];
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if (GetConsoleAliasesW(Alias, Length * sizeof(BYTE), pszExeName))
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{
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for (; Alias < AliasEnd; Alias += wcslen(Alias) + 1)
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{
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wprintf(L"%s%s\n", Indent, Alias);
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}
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}
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HeapFree(GetProcessHeap(), 0, AliasBuf);
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}
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static VOID PrintAllMacros(VOID)
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{
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DWORD Length = GetConsoleAliasExesLength();
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PBYTE ExeNameBuf;
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WCHAR *ExeName;
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WCHAR *ExeNameEnd;
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ExeNameBuf = HeapAlloc(GetProcessHeap(),
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HEAP_ZERO_MEMORY,
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Length * sizeof(BYTE));
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if (!ExeNameBuf) return;
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ExeName = (WCHAR *)ExeNameBuf;
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ExeNameEnd = (WCHAR *)&ExeNameBuf[Length];
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if (GetConsoleAliasExesW(ExeName, Length * sizeof(BYTE)))
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{
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for (; ExeName < ExeNameEnd; ExeName += wcslen(ExeName) + 1)
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{
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wprintf(L"[%s]\n", ExeName);
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PrintMacros(ExeName, L" ");
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wprintf(L"\n");
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}
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}
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HeapFree(GetProcessHeap(), 0, ExeNameBuf);
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}
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/* Remove starting and ending quotes from a string, if present */
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static LPWSTR RemoveQuotes(LPWSTR str)
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{
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WCHAR *end;
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if (*str == L'"' && *(end = str + wcslen(str) - 1) == L'"')
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{
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str++;
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*end = L'\0';
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}
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return str;
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}
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static VOID ReadFromFile(LPWSTR FileName)
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{
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FILE* fp;
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WCHAR line[MAX_PATH];
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WCHAR ExeNameBuffer[EXENAME_LENGTH];
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LPWSTR pszOrgExeName = pszExeName;
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/* Open the file */
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fp = _wfopen(FileName, L"rt");
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if (!fp)
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{
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_wperror(FileName);
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return;
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}
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while (fgetws(line, ARRAYSIZE(line), fp) != NULL)
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{
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PWCHAR end;
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if (!*line)
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continue;
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/* Remove trailing newline character */
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end = &line[wcslen(line) - 1];
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if (*end == L'\n')
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*end = L'\0';
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if (!*line)
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continue;
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/* Check for any section redefining the current executable name */
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end = NULL;
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if (*line == L'[')
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end = wcschr(line, L']');
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if (end != NULL)
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{
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/* New section: change the current executable name */
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*end = L'\0'; // NULL-terminate it
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pszExeName = RemoveQuotes(line + 1);
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if (*pszExeName)
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{
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/* Capture the new executable name and truncate it if needed */
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end = &pszExeName[wcslen(pszExeName)];
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if (end - pszExeName >= EXENAME_LENGTH)
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end = &pszExeName[EXENAME_LENGTH - 1];
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*end = L'\0'; // Truncate it
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wcscpy(ExeNameBuffer, pszExeName);
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pszExeName = ExeNameBuffer;
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}
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else
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{
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/* Restore the original current executable name */
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pszExeName = pszOrgExeName;
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}
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}
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else
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{
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/* Set the new macro for the current executable */
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SetMacro(line);
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}
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}
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/* Restore the original current executable name if it has changed */
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pszExeName = pszOrgExeName;
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/* Close the file and return */
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fclose(fp);
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return;
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}
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/* Get the start and end of the next command-line argument. */
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static BOOL GetArg(WCHAR **pStart, WCHAR **pEnd)
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{
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BOOL bInQuotes = FALSE;
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WCHAR *p = *pEnd;
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p += wcsspn(p, L" \t");
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if (!*p)
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return FALSE;
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*pStart = p;
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do
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{
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if (!bInQuotes && (*p == L' ' || *p == L'\t'))
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break;
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bInQuotes ^= (*p++ == L'"');
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} while (*p);
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*pEnd = p;
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return TRUE;
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}
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int
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wmain(VOID)
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{
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LPWSTR pArgStart, pArgEnd;
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setlocale(LC_ALL, "");
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/* Get the full command line using GetCommandLine(). We can't just use argv,
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* because then a parameter like "gotoroot=cd \" wouldn't be passed completely. */
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pArgEnd = GetCommandLineW();
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/* Skip the application name */
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GetArg(&pArgStart, &pArgEnd);
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while (GetArg(&pArgStart, &pArgEnd))
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{
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/* NULL-terminate this argument to make processing easier */
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WCHAR tmp = *pArgEnd;
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*pArgEnd = L'\0';
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if (!wcscmp(pArgStart, L"/?"))
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{
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LoadStringW(GetModuleHandle(NULL),
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IDS_HELP,
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szStringBuf,
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ARRAYSIZE(szStringBuf));
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wprintf(szStringBuf);
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break;
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}
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else if (!_wcsnicmp(pArgStart, L"/EXENAME=", 9))
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{
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pszExeName = RemoveQuotes(pArgStart + 9);
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}
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else if (!wcsicmp(pArgStart, L"/H") ||
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!wcsicmp(pArgStart, L"/HISTORY"))
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{
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PrintHistory();
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}
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else if (!_wcsnicmp(pArgStart, L"/LISTSIZE=", 10))
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{
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SetConsoleNumberOfCommandsW(_wtoi(pArgStart + 10), pszExeName);
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}
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else if (!wcsicmp(pArgStart, L"/REINSTALL"))
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{
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ExpungeConsoleCommandHistoryW(pszExeName);
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}
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else if (!wcsicmp(pArgStart, L"/INSERT"))
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{
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SetInsert(ENABLE_INSERT_MODE);
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}
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else if (!wcsicmp(pArgStart, L"/OVERSTRIKE"))
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{
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SetInsert(0);
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}
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else if (!wcsicmp(pArgStart, L"/M") ||
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!wcsicmp(pArgStart, L"/MACROS"))
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{
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PrintMacros(pszExeName, L"");
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}
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else if (!_wcsnicmp(pArgStart, L"/M:", 3) ||
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!_wcsnicmp(pArgStart, L"/MACROS:", 8))
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{
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LPWSTR exe = RemoveQuotes(wcschr(pArgStart, L':') + 1);
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if (!wcsicmp(exe, L"ALL"))
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PrintAllMacros();
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else
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PrintMacros(exe, L"");
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}
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else if (!_wcsnicmp(pArgStart, L"/MACROFILE=", 11))
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{
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ReadFromFile(RemoveQuotes(pArgStart + 11));
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}
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else
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{
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/* This is the beginning of a macro definition. It includes
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* the entire remainder of the line, so first put back the
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* character that we replaced with NULL. */
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*pArgEnd = tmp;
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return SetMacro(pArgStart);
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}
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if (!tmp) break;
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pArgEnd++;
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}
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return 0;
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}
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