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Fix many incompatibilities in DIR switch parsing, including those noted in Bug 4744.

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svn path=/trunk/; revision=42338
This commit is contained in:
Jeffrey Morlan 2009-08-02 15:16:03 +00:00
parent 3871f9be2f
commit 54817d5b14
1 changed files with 49 additions and 80 deletions
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129
reactos/base/shell/cmd/dir.c
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@ -176,22 +176,16 @@ typedef struct _DirSwitchesFlags
{
DWORD dwAttribVal; /* The desired state of attribute */
DWORD dwAttribMask; /* Which attributes to check */
BOOL bUnSet; /* A helper flag if "-" was given with the switch */
BOOL bParSetted; /* A helper flag if parameters of switch were given */
} stAttribs; /* Displays files with this attributes only */
struct
{
enum EOrderBy eCriteria[3]; /* Criterias used to order by */
BOOL bCriteriaRev[3]; /* If the criteria is in reversed order */
short sCriteriaCount; /* The quantity of criterias */
BOOL bUnSet; /* A helper flag if "-" was given with the switch */
BOOL bParSetted; /* A helper flag if parameters of switch were given */
} stOrderBy; /* Ordered by criterias */
struct
{
enum ETimeField eTimeField; /* The time field that will be used for */
BOOL bUnSet; /* A helper flag if "-" was given with the switch */
BOOL bParSetted; /* A helper flag if parameters of switch were given */
} stTimeField; /* The time field to display or use for sorting */
} DIRSWITCHFLAGS, *LPDIRSWITCHFLAGS;
@ -247,6 +241,7 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
BOOL bIntoQuotes; /* A flag showing if we are in quotes (") */
LPTSTR ptrStart; /* A pointer to the first character of a parameter */
LPTSTR ptrEnd; /* A pointer to the last character of a parameter */
BOOL bOrderByNoPar; /* A flag to indicate /O with no switch parameter */
LPTSTR temp;
/* Initialize parameter array */
@ -261,10 +256,7 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
/* We suppose that switch parameters
were given to avoid setting them to default
if the switch was not given */
lpFlags->stAttribs.bParSetted = TRUE;
lpFlags->stOrderBy.bParSetted = TRUE;
lpFlags->stTimeField.bParSetted = TRUE;
bOrderByNoPar = FALSE;
/* Main Loop (see README_DIR.txt) */
/* scan the command line char per char, and we process its char */
@ -278,24 +270,46 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
/* When a switch is expecting */
if (cCurSwitch == _T('/'))
{
while (*Line == _T(' '))
Line++;
bNegative = (*Line == _T('-'));
Line += bNegative;
cCurChar = *Line;
cCurUChar = _totupper(*Line);
if ((cCurUChar == _T('A')) ||(cCurUChar == _T('T')) || (cCurUChar == _T('O')))
{
cCurSwitch = cCurUChar;
/* If positive, prepare for parameters... if negative, reset to defaults */
switch (cCurUChar)
{
case _T('A'):
lpFlags->stAttribs.bUnSet = bNegative;
lpFlags->stAttribs.bParSetted = FALSE;
lpFlags->stAttribs.dwAttribVal = 0L;
lpFlags->stAttribs.dwAttribMask = 0L;
if (bNegative)
lpFlags->stAttribs.dwAttribMask = FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
break;
case _T('T'):
lpFlags->stTimeField.bUnSet = bNegative;
lpFlags->stTimeField.bParSetted = FALSE;
if (bNegative)
lpFlags->stTimeField.eTimeField = TF_MODIFIEDDATE;
break;
case _T('O'):
lpFlags->stOrderBy.bUnSet = bNegative;
lpFlags->stOrderBy.bParSetted = FALSE;
bOrderByNoPar = !bNegative;
lpFlags->stOrderBy.sCriteriaCount = 0;
break;
}
if (!bNegative)
{
/* Positive switch, so it can take parameters. */
cCurSwitch = cCurUChar;
Line++;
/* Skip optional leading colon */
if (*Line == _T(':'))
Line++;
continue;
}
}
else if (cCurUChar == _T('L'))
lpFlags->bLowerCase = ! bNegative;
@ -324,24 +338,20 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
DirHelp();
return FALSE;
}
else if (cCurChar == _T('-'))
{
bNegative = TRUE;
}
else
{
error_invalid_switch ((TCHAR)_totupper (*Line));
return FALSE;
}
/* We check if we calculated the negative value and realese the flag */
if ((cCurChar != _T('-')) && bNegative)
bNegative = FALSE;
/* if not a,o,t or - option then next parameter is not a switch */
if ((cCurSwitch == _T('/')) && (!bNegative))
cCurSwitch = _T(' ');
/* Make sure there's no extra characters at the end of the switch */
if (Line[1] && Line[1] != _T('/') && Line[1] != _T(' '))
{
error_parameter_format(Line[1]);
return FALSE;
}
cCurSwitch = _T(' ');
}
else if (cCurSwitch == _T(' '))
{
@ -393,20 +403,14 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
if ((cCurChar == _T('/')) || ( cCurChar == _T(' ')))
{
/* Wrong desicion path, reprocess current character */
cCurSwitch = cCurChar;
cCurSwitch = _T(' ');
continue;
}
/* Process parameter switch */
switch(cCurSwitch)
{
case _T('A'): /* Switch parameters for /A (attributes filter) */
/* Ok a switch parameter was given */
lpFlags->stAttribs.bParSetted = TRUE;
if (cCurChar == _T(':'))
/* =V= dead command, used to make the "if" work */
cCurChar = cCurChar;
else if(cCurChar == _T('-'))
if(cCurChar == _T('-'))
bPNegative = TRUE;
else if(cCurUChar == _T('D'))
{
@ -455,14 +459,7 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
}
break;
case _T('T'): /* Switch parameters for /T (time field) */
/* Ok a switch parameter was given */
lpFlags->stTimeField.bParSetted = TRUE;
if (cCurChar == _T(':'))
/* =V= dead command, used to make the "if" work */
cCurChar = cCurChar;
else if(cCurUChar == _T('C'))
if(cCurUChar == _T('C'))
lpFlags->stTimeField.eTimeField= TF_CREATIONDATE ;
else if(cCurUChar == _T('A'))
lpFlags->stTimeField.eTimeField= TF_LASTACCESSEDDATE ;
@ -476,12 +473,9 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
break;
case _T('O'): /* Switch parameters for /O (order) */
/* Ok a switch parameter was given */
lpFlags->stOrderBy.bParSetted = TRUE;
bOrderByNoPar = FALSE;
if (cCurChar == _T(':'))
/* <== dead command, used to make the "if" work */
cCurChar = cCurChar;
else if(cCurChar == _T('-'))
if(cCurChar == _T('-'))
bPNegative = TRUE;
else if(cCurUChar == _T('N'))
{
@ -530,38 +524,16 @@ DirReadParam(LPTSTR Line, /* [IN] The line with the parameters & switches */
Line++;
}
/* Calculate the switches with no switch paramater */
if (!(lpFlags->stAttribs.bParSetted))
/* /O with no switch parameters acts like /O:GN */
if (bOrderByNoPar)
{
lpFlags->stAttribs.dwAttribVal = 0L;
lpFlags->stAttribs.dwAttribMask = lpFlags->stAttribs.dwAttribVal;
}
if (!(lpFlags->stOrderBy.bParSetted))
{
lpFlags->stOrderBy.sCriteriaCount = 1;
lpFlags->stOrderBy.eCriteria[0] = ORDER_NAME;
lpFlags->stOrderBy.sCriteriaCount = 2;
lpFlags->stOrderBy.eCriteria[0] = ORDER_DIRECTORY;
lpFlags->stOrderBy.bCriteriaRev[0] = FALSE;
lpFlags->stOrderBy.eCriteria[1] = ORDER_NAME;
lpFlags->stOrderBy.bCriteriaRev[1] = FALSE;
}
if (!(lpFlags->stTimeField.bParSetted))
lpFlags->stTimeField.eTimeField = TF_MODIFIEDDATE ;
/* Calculate the unsetted switches (the "-" prefixed)*/
if (lpFlags->stAttribs.bUnSet)
{
lpFlags->stAttribs.bUnSet = FALSE;
lpFlags->stAttribs.dwAttribVal = 0L;
lpFlags->stAttribs.dwAttribMask = FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
}
if (lpFlags->stOrderBy.bUnSet)
{
lpFlags->stOrderBy.bUnSet = FALSE;
lpFlags->stOrderBy.sCriteriaCount = 0;
}
if (lpFlags->stTimeField.bUnSet )
{
lpFlags->stTimeField.bUnSet = FALSE;
lpFlags->stTimeField.eTimeField = TF_MODIFIEDDATE;
}
return TRUE;
}
@ -1600,12 +1572,9 @@ CommandDir(LPTSTR rest)
stFlags.bWideList = FALSE;
stFlags.bWideListColSort = FALSE;
stFlags.stTimeField.eTimeField = TF_MODIFIEDDATE;
stFlags.stTimeField.bUnSet = FALSE;
stFlags.stAttribs.dwAttribMask = FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
stFlags.stAttribs.dwAttribVal = 0L;
stFlags.stAttribs.bUnSet = FALSE;
stFlags.stOrderBy.sCriteriaCount = 0;
stFlags.stOrderBy.bUnSet = FALSE;
nErrorLevel = 0;