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cmd: Use terminated strings.

Browse Source 
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48486
Signed-off-by: Gijs Vermeulen <gijsvrm@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Gijs Vermeulen 2021-04-15 17:11:53 +02:00 committed by Alexandre Julliard
parent defb7d9c76
commit 0bf71745f0
3 changed files with 40 additions and 55 deletions
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48
programs/cmd/builtins.c
View File

@ -1533,8 +1533,6 @@ static void WCMD_part_execute(CMD_LIST **cmdList, const WCHAR *firstcmd,
BOOL processThese = executecmds;
while (*cmdList) {
static const WCHAR ifElse[] = {'e','l','s','e'};
/* execute all appropriate commands */
curPosition = *cmdList;
@ -1566,13 +1564,13 @@ static void WCMD_part_execute(CMD_LIST **cmdList, const WCHAR *firstcmd,
/* End of the command - does 'ELSE ' follow as the next command? */
} else {
if (isIF && WCMD_keyword_ws_found(ifElse, ARRAY_SIZE(ifElse), (*cmdList)->command)) {
if (isIF && WCMD_keyword_ws_found(L"else", (*cmdList)->command)) {
/* Swap between if and else processing */
processThese = !executecmds;
/* Process the ELSE part */
if (processThese) {
const int keyw_len = ARRAY_SIZE(ifElse) + 1;
const int keyw_len = lstrlenW(L"else") + 1;
WCHAR *cmd = ((*cmdList)->command) + keyw_len;
/* Skip leading whitespace between condition and the command */
@ -1599,8 +1597,7 @@ static void WCMD_part_execute(CMD_LIST **cmdList, const WCHAR *firstcmd,
the same bracket depth as the IF, then the IF statement is over. This is required
to handle nested ifs properly */
} else if (isIF && (*cmdList)->bracketDepth == myDepth) {
static const WCHAR doW[] = {'d','o'};
if (WCMD_keyword_ws_found(doW, ARRAY_SIZE(doW), (*cmdList)->command)) {
if (WCMD_keyword_ws_found(L"do", (*cmdList)->command)) {
WINE_TRACE("Still inside FOR-loop, not an end of IF statement\n");
*cmdList = (*cmdList)->nextcommand;
} else {
@ -1642,11 +1639,11 @@ static BOOL WCMD_parse_forf_options(WCHAR *options, WCHAR *eol, int *skip,
WCHAR *pos = options;
int len = lstrlenW(pos);
static const WCHAR eolW[] = {'e','o','l','='};
static const WCHAR skipW[] = {'s','k','i','p','='};
static const WCHAR tokensW[] = {'t','o','k','e','n','s','='};
static const WCHAR delimsW[] = {'d','e','l','i','m','s','='};
static const WCHAR usebackqW[] = {'u','s','e','b','a','c','k','q'};
const int eol_len = lstrlenW(L"eol=");
const int skip_len = lstrlenW(L"skip=");
const int tokens_len = lstrlenW(L"tokens=");
const int delims_len = lstrlenW(L"delims=");
const int usebackq_len = lstrlenW(L"usebackq");
/* Initialize to defaults */
lstrcpyW(delims, L" \t");
@ -1668,35 +1665,35 @@ static BOOL WCMD_parse_forf_options(WCHAR *options, WCHAR *eol, int *skip,
/* Save End of line character (Ignore line if first token (based on delims) starts with it) */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, ARRAY_SIZE(eolW), eolW, ARRAY_SIZE(eolW)) == CSTR_EQUAL) {
*eol = *(pos + ARRAY_SIZE(eolW));
pos = pos + ARRAY_SIZE(eolW) + 1;
pos, eol_len, L"eol=", eol_len) == CSTR_EQUAL) {
*eol = *(pos + eol_len);
pos = pos + eol_len + 1;
WINE_TRACE("Found eol as %c(%x)\n", *eol, *eol);
/* Save number of lines to skip (Can be in base 10, hex (0x...) or octal (0xx) */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, ARRAY_SIZE(skipW), skipW, ARRAY_SIZE(skipW)) == CSTR_EQUAL) {
pos, skip_len, L"skip=", skip_len) == CSTR_EQUAL) {
WCHAR *nextchar = NULL;
pos = pos + ARRAY_SIZE(skipW);
pos = pos + skip_len;
*skip = wcstoul(pos, &nextchar, 0);
WINE_TRACE("Found skip as %d lines\n", *skip);
pos = nextchar;
/* Save if usebackq semantics are in effect */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT, pos,
ARRAY_SIZE(usebackqW), usebackqW, ARRAY_SIZE(usebackqW)) == CSTR_EQUAL) {
usebackq_len, L"usebackq", usebackq_len) == CSTR_EQUAL) {
*usebackq = TRUE;
pos = pos + ARRAY_SIZE(usebackqW);
pos = pos + usebackq_len;
WINE_TRACE("Found usebackq\n");
/* Save the supplied delims. Slightly odd as space can be a delimiter but only
if you finish the optionsroot string with delims= otherwise the space is
just a token delimiter! */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, ARRAY_SIZE(delimsW), delimsW, ARRAY_SIZE(delimsW)) == CSTR_EQUAL) {
pos, delims_len, L"delims=", delims_len) == CSTR_EQUAL) {
int i=0;
pos = pos + ARRAY_SIZE(delimsW);
pos = pos + delims_len;
while (*pos && *pos != ' ') {
delims[i++] = *pos;
pos++;
@ -1707,10 +1704,10 @@ static BOOL WCMD_parse_forf_options(WCHAR *options, WCHAR *eol, int *skip,
/* Save the tokens being requested */
} else if (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
pos, ARRAY_SIZE(tokensW), tokensW, ARRAY_SIZE(tokensW)) == CSTR_EQUAL) {
pos, tokens_len, L"tokens=", tokens_len) == CSTR_EQUAL) {
int i=0;
pos = pos + ARRAY_SIZE(tokensW);
pos = pos + tokens_len;
while (*pos && *pos != ' ') {
tokens[i++] = *pos;
pos++;
@ -2109,8 +2106,7 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
WIN32_FIND_DATAW fd;
HANDLE hff;
int i;
static const WCHAR inW[] = {'i','n'};
static const WCHAR doW[] = {'d','o'};
const int in_len = lstrlenW(L"in");
CMD_LIST *setStart, *thisSet, *cmdStart, *cmdEnd;
WCHAR variable[4];
int varidx = -1;
@ -2210,7 +2206,7 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
thisArg = WCMD_parameter(p, parameterNo++, NULL, FALSE, FALSE);
if (!thisArg
|| !(CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
thisArg, ARRAY_SIZE(inW), inW, ARRAY_SIZE(inW)) == CSTR_EQUAL)) {
thisArg, in_len, L"in", in_len) == CSTR_EQUAL)) {
WCMD_output_stderr (WCMD_LoadMessage(WCMD_SYNTAXERR));
return;
}
@ -2235,7 +2231,7 @@ void WCMD_for (WCHAR *p, CMD_LIST **cmdList) {
/* Syntax error if missing close bracket, or nothing following it
and once we have the complete set, we expect a DO */
WINE_TRACE("Looking for 'do ' in %p\n", *cmdList);
if ((*cmdList == NULL) || !WCMD_keyword_ws_found(doW, ARRAY_SIZE(doW), (*cmdList)->command)) {
if ((*cmdList == NULL) || !WCMD_keyword_ws_found(L"do", (*cmdList)->command)) {
WCMD_output_stderr (WCMD_LoadMessage(WCMD_SYNTAXERR));
return;
}

2
programs/cmd/wcmd.h
View File

@ -110,7 +110,7 @@ WCHAR *WCMD_parameter (WCHAR *s, int n, WCHAR **start, BOOL raw, BOOL wholecmdli
WCHAR *WCMD_parameter_with_delims (WCHAR *s, int n, WCHAR **start, BOOL raw,
BOOL wholecmdline, const WCHAR *delims);
WCHAR *WCMD_skip_leading_spaces (WCHAR *string);
BOOL WCMD_keyword_ws_found(const WCHAR *keyword, int len, const WCHAR *ptr);
BOOL WCMD_keyword_ws_found(const WCHAR *keyword, const WCHAR *ptr);
void WCMD_HandleTildeModifiers(WCHAR **start, BOOL atExecute);
WCHAR *WCMD_strip_quotes(WCHAR *cmd);

45
programs/cmd/wcmdmain.c
View File

@ -473,7 +473,8 @@ WCHAR *WCMD_skip_leading_spaces (WCHAR *string) {
* Checks if the string located at ptr matches a keyword (of length len)
* followed by a whitespace character (space or tab)
*/
BOOL WCMD_keyword_ws_found(const WCHAR *keyword, int len, const WCHAR *ptr) {
BOOL WCMD_keyword_ws_found(const WCHAR *keyword, const WCHAR *ptr) {
const int len = lstrlenW(keyword);
return (CompareStringW(LOCALE_USER_DEFAULT, NORM_IGNORECASE | SORT_STRINGSORT,
ptr, len, keyword, len) == CSTR_EQUAL)
&& ((*(ptr + len) == ' ') || (*(ptr + len) == '\t'));
@ -1813,11 +1814,6 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
CMD_LIST *lastEntry = NULL;
CMD_DELIMITERS prevDelim = CMD_NONE;
static WCHAR *extraSpace = NULL; /* Deliberately never freed */
static const WCHAR remCmd[] = {'r','e','m'};
static const WCHAR forCmd[] = {'f','o','r'};
static const WCHAR ifCmd[] = {'i','f'};
static const WCHAR ifElse[] = {'e','l','s','e'};
static const WCHAR setCmd[] = {'s','e','t'};
BOOL inOneLine = FALSE;
BOOL inFor = FALSE;
BOOL inIn = FALSE;
@ -1870,10 +1866,7 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
/* Show prompt before batch line IF echo is on and in batch program */
if (context && echo_mode && *curPos && (*curPos != '@')) {
static const WCHAR echoDot[] = {'e','c','h','o','.'};
static const WCHAR echoCol[] = {'e','c','h','o',':'};
static const WCHAR echoSlash[] = {'e','c','h','o','/'};
const DWORD len = ARRAY_SIZE(echoDot);
const DWORD len = lstrlenW(L"echo.");
DWORD curr_size = lstrlenW(curPos);
DWORD min_len = (curr_size < len ? curr_size : len);
WCMD_show_prompt(TRUE);
@ -1881,11 +1874,11 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
/* I don't know why Windows puts a space here but it does */
/* Except for lines starting with 'echo.', 'echo:' or 'echo/'. Ask MS why */
if (CompareStringW(LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE,
curPos, min_len, echoDot, len) != CSTR_EQUAL
curPos, min_len, L"echo.", len) != CSTR_EQUAL
&& CompareStringW(LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE,
curPos, min_len, echoCol, len) != CSTR_EQUAL
curPos, min_len, L"echo:", len) != CSTR_EQUAL
&& CompareStringW(LOCALE_SYSTEM_DEFAULT, NORM_IGNORECASE,
curPos, min_len, echoSlash, len) != CSTR_EQUAL)
curPos, min_len, L"echo/", len) != CSTR_EQUAL)
{
WCMD_output_asis(L" ");
}
@ -1921,13 +1914,11 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
/* Certain commands need special handling */
if (curStringLen == 0 && curCopyTo == curString) {
static const WCHAR forDO[] = {'d','o'};
/* If command starts with 'rem ' or identifies a label, ignore any &&, ( etc. */
if (WCMD_keyword_ws_found(remCmd, ARRAY_SIZE(remCmd), curPos) || *curPos == ':') {
if (WCMD_keyword_ws_found(L"rem", curPos) || *curPos == ':') {
inOneLine = TRUE;
} else if (WCMD_keyword_ws_found(forCmd, ARRAY_SIZE(forCmd), curPos)) {
} else if (WCMD_keyword_ws_found(L"for", curPos)) {
inFor = TRUE;
/* If command starts with 'if ' or 'else ', handle ('s mid line. We should ensure this
@ -1935,14 +1926,14 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
should suffice for now.
To be able to handle ('s in the condition part take as much as evaluate_if_condition
would take and skip parsing it here. */
} else if (WCMD_keyword_ws_found(ifCmd, ARRAY_SIZE(ifCmd), curPos)) {
} else if (WCMD_keyword_ws_found(L"if", curPos)) {
int negate; /* Negate condition */
int test; /* Condition evaluation result */
WCHAR *p, *command;
inIf = TRUE;
p = curPos+(ARRAY_SIZE(ifCmd));
p = curPos+(lstrlenW(L"if"));
while (*p == ' ' || *p == '\t')
p++;
WCMD_parse (p, quals, param1, param2);
@ -1960,11 +1951,11 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
curPos+=if_condition_len;
}
if (WCMD_keyword_ws_found(setCmd, ARRAY_SIZE(setCmd), curPos))
if (WCMD_keyword_ws_found(L"set", curPos))
ignoreBracket = TRUE;
} else if (WCMD_keyword_ws_found(ifElse, ARRAY_SIZE(ifElse), curPos)) {
const int keyw_len = ARRAY_SIZE(ifElse) + 1;
} else if (WCMD_keyword_ws_found(L"else", curPos)) {
const int keyw_len = lstrlenW(L"else") + 1;
inElse = TRUE;
lastWasElse = TRUE;
onlyWhiteSpace = TRUE;
@ -1985,8 +1976,8 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
/* In a for loop, the DO command will follow a close bracket followed by
whitespace, followed by DO, ie closeBracket inserts a NULL entry, curLen
is then 0, and all whitespace is skipped */
} else if (inFor && WCMD_keyword_ws_found(forDO, ARRAY_SIZE(forDO), curPos)) {
const int keyw_len = ARRAY_SIZE(forDO) + 1;
} else if (inFor && WCMD_keyword_ws_found(L"do", curPos)) {
const int keyw_len = lstrlenW(L"do") + 1;
WINE_TRACE("Found 'DO '\n");
lastWasDo = TRUE;
onlyWhiteSpace = TRUE;
@ -1999,12 +1990,10 @@ WCHAR *WCMD_ReadAndParseLine(const WCHAR *optionalcmd, CMD_LIST **output, HANDLE
/* Special handling for the 'FOR' command */
if (inFor && lastWasWhiteSpace) {
static const WCHAR forIN[] = {'i','n'};
WINE_TRACE("Found 'FOR ', comparing next parm: '%s'\n", wine_dbgstr_w(curPos));
if (WCMD_keyword_ws_found(forIN, ARRAY_SIZE(forIN), curPos)) {
const int keyw_len = ARRAY_SIZE(forIN) + 1;
if (WCMD_keyword_ws_found(L"in", curPos)) {
const int keyw_len = lstrlenW(L"in") + 1;
WINE_TRACE("Found 'IN '\n");
lastWasIn = TRUE;
onlyWhiteSpace = TRUE;