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* Create a branch for USB experiments.

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svn path=/branches/usb-experiments/; revision=72629
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Amine Khaldi 2016-09-09 15:11:19 +00:00
parent 28d8ba0d3e
commit 0ee830d7a4
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209
base/shell/cmd/alias.c Normal file
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/*
* ALIAS.C - alias administration module.
*
*
* History:
*
* 02/02/1996 (Oliver Mueller)
* started.
*
* 02/03/1996 (Oliver Mueller)
* Added sorting algorithm and case sensitive substitution by using
* partstrupr().
*
* 27 Jul 1998 John P. Price
* added config.h include
* added ifdef's to disable aliases
*
* 09-Dec-1998 Eric Kohl
* Fixed crash when removing an alias in DeleteAlias().
* Added help text ("/?").
*
* 14-Jan-1998 Eric Kohl
* Clean up and Unicode safe!
*
* 24-Jan-1998 Eric Kohl
* Redirection safe!
*
* 02-Apr-2005 (Magnus Olsen <magnus@greatlord.com>)
* Remove all hardcoded strings in En.rc
*
* 02-Feb-2008 (Christoph von Wittich <christoph_vw@reactos.org>)
* rewrote alias handling for doskey compat
*/
#include "precomp.h"
#ifdef FEATURE_ALIASES
/* module internal functions */
/* strlwr only for first word in string */
static VOID
partstrlwr (LPTSTR str)
{
LPTSTR c = str;
while (*c && !_istspace (*c) && *c != _T('='))
{
*c = _totlower (*c);
c++;
}
}
static VOID
PrintAlias (VOID)
{
LPTSTR Aliases;
LPTSTR ptr;
DWORD len;
len = GetConsoleAliasesLength(_T("cmd.exe"));
if (len == 0)
return;
/* allocate memory for an extra \0 char to make parsing easier */
ptr = cmd_alloc(len + sizeof(TCHAR));
if (!ptr)
return;
Aliases = ptr;
ZeroMemory(Aliases, len + sizeof(TCHAR));
if (GetConsoleAliases(Aliases, len, _T("cmd.exe")) != 0)
{
while (*Aliases != '\0')
{
ConOutPrintf(_T("%s\n"), Aliases);
Aliases = Aliases + lstrlen(Aliases);
Aliases++;
}
}
cmd_free(ptr);
}
/* specified routines */
VOID ExpandAlias (LPTSTR cmd, INT maxlen)
{
LPTSTR buffer;
TCHAR *position, *in, *out;
LPTSTR Token;
LPTSTR tmp;
tmp = cmd_dup(cmd);
if (!tmp)
return;
/* first part is the macro name */
position = tmp + _tcscspn(tmp, _T(" \n"));
if (position == tmp)
{
cmd_free(tmp);
return;
}
*position++ = _T('\0');
position += _tcsspn(position, _T(" "));
buffer = cmd_alloc(maxlen);
if (!buffer)
{
cmd_free(tmp);
return;
}
if (GetConsoleAlias(tmp, buffer, maxlen, _T("cmd.exe")) == 0)
{
cmd_free(tmp);
cmd_free(buffer);
return;
}
in = buffer;
out = cmd;
while (*in)
{
if (*in == _T('$'))
{
Token = position;
if (in[1] >= _T('1') && in[1] <= _T('9'))
{
/* Copy a single space-delimited token from the input line */
INT num;
for (num = in[1] - _T('1'); num > 0; num--)
{
Token += _tcscspn(Token, _T(" \n"));
Token += _tcsspn(Token, _T(" "));
}
while (!_tcschr(_T(" \n"), *Token))
{
if (out >= &cmd[maxlen - 1])
break;
*out++ = *Token++;
}
in += 2;
continue;
}
else if (in[1] == _T('*'))
{
/* Copy the entire remainder of the line */
while (*Token && *Token != _T('\n'))
{
if (out >= &cmd[maxlen - 1])
break;
*out++ = *Token++;
}
in += 2;
continue;
}
}
if (out >= &cmd[maxlen - 1])
break;
*out++ = *in++;
}
*out++ = _T('\n');
*out = _T('\0');
cmd_free(buffer);
cmd_free(tmp);
}
INT CommandAlias (LPTSTR param)
{
LPTSTR ptr;
if (!_tcsncmp (param, _T("/?"), 2))
{
ConOutResPaging(TRUE,STRING_ALIAS_HELP);
return 0;
}
nErrorLevel = 0;
if (param[0] == _T('\0'))
{
PrintAlias ();
return 0;
}
nErrorLevel = 0;
/* error if no '=' found */
if ((ptr = _tcschr (param, _T('='))) == 0)
{
nErrorLevel = 1;
return 1;
}
/* Split rest into name and substitute */
*ptr++ = _T('\0');
partstrlwr (param);
if (ptr[0] == _T('\0'))
AddConsoleAlias(param, NULL, _T("cmd.exe"));
else
AddConsoleAlias(param, ptr, _T("cmd.exe"));
return 0;
}
#endif