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give set/a access to "special" variables like errorlevel

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svn path=/trunk/; revision=17960
This commit is contained in:
Royce Mitchell III
2005-09-21 01:44:18 +00:00
parent d25cb331be
commit 5c0d0a5c3d
2 changed files with 5 additions and 15 deletions
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1
reactos/subsys/system/cmd/cmd.h
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@@ -99,6 +99,7 @@ INT cmd_cls (LPTSTR, LPTSTR);
/* Prototypes for CMD.C */
VOID ParseCommandLine (LPTSTR);
LPCTSTR GetEnvVarOrSpecial ( LPCTSTR varName );
VOID AddBreakHandler (VOID);
VOID RemoveBreakHandler (VOID);

19
reactos/subsys/system/cmd/set.c
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@@ -173,25 +173,14 @@ ident_len ( LPCTSTR p )
static BOOL
seta_identval ( LPCTSTR ident, INT* result )
{
// get size of buffer for env var
LPTSTR buf;
DWORD dwBuffer = GetEnvironmentVariable ( ident, NULL, 0 );
// if GetEnvironmentVariable() fails, it returns 0
if ( !dwBuffer )
LPCTSTR identVal = GetEnvVarOrSpecial ( ident );
if ( !identVal )
{
// TODO FIXME - is it correct to report a value of 0 for non-existant variables?
/* TODO FIXME - what to do upon failure? */
*result = 0;
return FALSE;
}
buf = (LPTSTR)alloca ( dwBuffer * sizeof(TCHAR) );
if ( !buf )
{
// TODO FIXME - is it correct to report 0 when report resources low... should we error somehow?
*result = 0;
return FALSE;
}
GetEnvironmentVariable ( ident, buf, dwBuffer );
*result = _ttoi ( buf );
*result = _ttoi ( identVal );
return TRUE;
}