Sweden-Number/programs/cmd/batch.c

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/*
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* CMD - Wine-compatible command line interface - batch interface.
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*
* Copyright (C) 1999 D A Pickles
* Copyright (C) 2007 J Edmeades
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*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
#include "wcmd.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(cmd);
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extern int echo_mode;
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extern WCHAR quals[MAX_PATH], param1[MAX_PATH], param2[MAX_PATH];
extern BATCH_CONTEXT *context;
extern DWORD errorlevel;
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/****************************************************************************
* WCMD_batch
*
* Open and execute a batch file.
* On entry *command includes the complete command line beginning with the name
* of the batch file (if a CALL command was entered the CALL has been removed).
* *file is the name of the file, which might not exist and may not have the
* .BAT suffix on. Called is 1 for a CALL, 0 otherwise.
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*
* We need to handle recursion correctly, since one batch program might call another.
* So parameters for this batch file are held in a BATCH_CONTEXT structure.
*
* To support call within the same batch program, another input parameter is
* a label to goto once opened.
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*/
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void WCMD_batch (WCHAR *file, WCHAR *command, int called, WCHAR *startLabel, HANDLE pgmHandle) {
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HANDLE h = INVALID_HANDLE_VALUE;
BATCH_CONTEXT *prev_context;
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if (startLabel == NULL) {
h = CreateFileW (file, GENERIC_READ, FILE_SHARE_READ,
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (h == INVALID_HANDLE_VALUE) {
SetLastError (ERROR_FILE_NOT_FOUND);
WCMD_print_error ();
return;
}
} else {
DuplicateHandle(GetCurrentProcess(), pgmHandle,
GetCurrentProcess(), &h,
0, FALSE, DUPLICATE_SAME_ACCESS);
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}
/*
* Create a context structure for this batch file.
*/
prev_context = context;
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context = LocalAlloc (LMEM_FIXED, sizeof (BATCH_CONTEXT));
context -> h = h;
context->batchfileW = WCMD_strdupW(file);
context -> command = command;
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memset(context -> shift_count, 0x00, sizeof(context -> shift_count));
context -> prev_context = prev_context;
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context -> skip_rest = FALSE;
/* If processing a call :label, 'goto' the label in question */
if (startLabel) {
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strcpyW(param1, startLabel);
WCMD_goto(NULL);
}
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/*
* Work through the file line by line. Specific batch commands are processed here,
* the rest are handled by the main command processor.
*/
while (context -> skip_rest == FALSE) {
CMD_LIST *toExecute = NULL; /* Commands left to be executed */
if (WCMD_ReadAndParseLine(NULL, &toExecute, h) == NULL)
break;
WCMD_process_commands(toExecute, FALSE, NULL, NULL);
WCMD_free_commands(toExecute);
toExecute = NULL;
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}
CloseHandle (h);
/*
* If invoked by a CALL, we return to the context of our caller. Otherwise return
* to the caller's caller.
*/
HeapFree(GetProcessHeap(), 0, context->batchfileW);
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LocalFree (context);
if ((prev_context != NULL) && (!called)) {
prev_context -> skip_rest = TRUE;
context = prev_context;
}
context = prev_context;
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}
/*******************************************************************
* WCMD_parameter
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*
* Extracts a delimited parameter from an input string
*
* PARAMS
* s [I] input string, non NULL
* n [I] # of the (possibly double quotes-delimited) parameter to return
* Starts at 0
* where [O] if non NULL, pointer to the start of the nth parameter in s,
* potentially a " character
*
* RETURNS
* Success: Returns the nth delimited parameter found in s.
* *where points to the start of the param, possibly a starting
* double quotes character
* Failure: Returns an empty string if the param is not found.
* *where is set to NULL
*
* NOTES
* Return value is stored in static storage, hence is overwritten
* after each call.
* Doesn't include any potentially delimiting double quotes
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*/
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WCHAR *WCMD_parameter (WCHAR *s, int n, WCHAR **where) {
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int i = 0;
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static WCHAR param[MAX_PATH];
WCHAR *p;
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if (where != NULL) *where = NULL;
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p = param;
while (TRUE) {
switch (*s) {
case ' ': /* Skip leading spaces */
case '\t': /* Treat tabs as spaces */
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s++;
break;
case '"':
if (where != NULL && i==n) *where = s;
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s++;
while ((*s != '\0') && (*s != '"')) {
*p++ = *s++;
}
if (i == n) {
*p = '\0';
return param;
}
if (*s == '"') s++;
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param[0] = '\0';
i++;
p = param;
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break;
/* The code to handle bracketed parms is removed because it should no longer
be necessary after the multiline support has been added and the for loop
set of data is now parseable individually. */
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case '\0':
return param;
default:
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/* Only return where if it is for the right parameter */
if (where != NULL && i==n) *where = s;
while ((*s != '\0') && (*s != ' ') && (*s != ',') && (*s != '=') && (*s != '\t')) {
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*p++ = *s++;
}
if (i == n && (p!=param)) {
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*p = '\0';
return param;
}
/* Skip double delimiters, eg. dir a.a,,,,,b.b */
if (p != param) {
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param[0] = '\0';
i++;
} else {
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s++; /* Skip delimiter */
}
p = param;
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}
}
}
/****************************************************************************
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* WCMD_fgets
*
* Get one line from a batch file. We can't use the native f* functions because
* of the filename syntax differences between DOS and Unix. Also need to lose
* the LF (or CRLF) from the line.
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*/
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WCHAR *WCMD_fgets (WCHAR *s, int noChars, HANDLE h) {
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DWORD bytes;
BOOL status;
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WCHAR *p;
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p = s;
do {
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status = WCMD_ReadFile (h, s, 1, &bytes, NULL);
if ((status == 0) || ((bytes == 0) && (s == p))) return NULL;
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if (*s == '\n') bytes = 0;
else if (*s != '\r') {
s++;
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noChars--;
}
*s = '\0';
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} while ((bytes == 1) && (noChars > 1));
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return p;
}
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/* WCMD_splitpath - copied from winefile as no obvious way to use it otherwise */
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void WCMD_splitpath(const WCHAR* path, WCHAR* drv, WCHAR* dir, WCHAR* name, WCHAR* ext)
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{
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const WCHAR* end; /* end of processed string */
const WCHAR* p; /* search pointer */
const WCHAR* s; /* copy pointer */
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/* extract drive name */
if (path[0] && path[1]==':') {
if (drv) {
*drv++ = *path++;
*drv++ = *path++;
*drv = '\0';
}
} else if (drv)
*drv = '\0';
end = path + strlenW(path);
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/* search for begin of file extension */
for(p=end; p>path && *--p!='\\' && *p!='/'; )
if (*p == '.') {
end = p;
break;
}
if (ext)
for(s=end; (*ext=*s++); )
ext++;
/* search for end of directory name */
for(p=end; p>path; )
if (*--p=='\\' || *p=='/') {
p++;
break;
}
if (name) {
for(s=p; s<end; )
*name++ = *s++;
*name = '\0';
}
if (dir) {
for(s=path; s<p; )
*dir++ = *s++;
*dir = '\0';
}
}
/****************************************************************************
* WCMD_HandleTildaModifiers
*
* Handle the ~ modifiers when expanding %0-9 or (%a-z in for command)
* %~xxxxxV (V=0-9 or A-Z)
* Where xxxx is any combination of:
* ~ - Removes quotes
* f - Fully qualified path (assumes current dir if not drive\dir)
* d - drive letter
* p - path
* n - filename
* x - file extension
* s - path with shortnames
* a - attributes
* t - date/time
* z - size
* $ENVVAR: - Searches ENVVAR for (contents of V) and expands to fully
* qualified path
*
* To work out the length of the modifier:
*
* Note: In the case of %0-9 knowing the end of the modifier is easy,
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* but in a for loop, the for end WCHARacter may also be a modifier
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* eg. for %a in (c:\a.a) do echo XXX
* where XXX = %~a (just ~)
* %~aa (~ and attributes)
* %~aaxa (~, attributes and extension)
* BUT %~aax (~ and attributes followed by 'x')
*
* Hence search forwards until find an invalid modifier, and then
* backwards until find for variable or 0-9
*/
void WCMD_HandleTildaModifiers(WCHAR **start, const WCHAR *forVariable,
const WCHAR *forValue, BOOL justFors) {
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#define NUMMODIFIERS 11
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static const WCHAR validmodifiers[NUMMODIFIERS] = {
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'~', 'f', 'd', 'p', 'n', 'x', 's', 'a', 't', 'z', '$'
};
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static const WCHAR space[] = {' ', '\0'};
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WIN32_FILE_ATTRIBUTE_DATA fileInfo;
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WCHAR outputparam[MAX_PATH];
WCHAR finaloutput[MAX_PATH];
WCHAR fullfilename[MAX_PATH];
WCHAR thisoutput[MAX_PATH];
WCHAR *pos = *start+1;
WCHAR *firstModifier = pos;
WCHAR *lastModifier = NULL;
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int modifierLen = 0;
BOOL finished = FALSE;
int i = 0;
BOOL exists = TRUE;
BOOL skipFileParsing = FALSE;
BOOL doneModifier = FALSE;
/* Search forwards until find invalid character modifier */
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while (!finished) {
/* Work on the previous character */
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if (lastModifier != NULL) {
for (i=0; i<NUMMODIFIERS; i++) {
if (validmodifiers[i] == *lastModifier) {
/* Special case '$' to skip until : found */
if (*lastModifier == '$') {
while (*pos != ':' && *pos) pos++;
if (*pos == 0x00) return; /* Invalid syntax */
pos++; /* Skip ':' */
}
break;
}
}
if (i==NUMMODIFIERS) {
finished = TRUE;
}
}
/* Save this one away */
if (!finished) {
lastModifier = pos;
pos++;
}
}
while (lastModifier > firstModifier) {
WINE_TRACE("Looking backwards for parameter id: %s / %s\n",
wine_dbgstr_w(lastModifier), wine_dbgstr_w(forVariable));
if (!justFors && context && (*lastModifier >= '0' && *lastModifier <= '9')) {
/* Its a valid parameter identifier - OK */
break;
} else if (forVariable && *lastModifier == *(forVariable+1)) {
/* Its a valid parameter identifier - OK */
break;
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} else {
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lastModifier--;
}
}
if (lastModifier == firstModifier) return; /* Invalid syntax */
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/* Extract the parameter to play with */
if (*lastModifier == '0') {
strcpyW(outputparam, context->batchfileW);
} else if ((*lastModifier >= '1' && *lastModifier <= '9')) {
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strcpyW(outputparam, WCMD_parameter (context -> command,
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*lastModifier-'0' + context -> shift_count[*lastModifier-'0'], NULL));
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} else {
strcpyW(outputparam, forValue);
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}
/* So now, firstModifier points to beginning of modifiers, lastModifier
points to the variable just after the modifiers. Process modifiers
in a specific order, remembering there could be duplicates */
modifierLen = lastModifier - firstModifier;
finaloutput[0] = 0x00;
/* Useful for debugging purposes: */
/*printf("Modifier string '%*.*s' and variable is %c\n Param starts as '%s'\n",
(modifierLen), (modifierLen), firstModifier, *lastModifier,
outputparam);*/
/* 1. Handle '~' : Strip surrounding quotes */
if (outputparam[0]=='"' &&
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memchrW(firstModifier, '~', modifierLen) != NULL) {
int len = strlenW(outputparam);
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if (outputparam[len-1] == '"') {
outputparam[len-1]=0x00;
len = len - 1;
}
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memmove(outputparam, &outputparam[1], (len * sizeof(WCHAR))-1);
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}
/* 2. Handle the special case of a $ */
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if (memchrW(firstModifier, '$', modifierLen) != NULL) {
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/* Special Case: Search envar specified in $[envvar] for outputparam
Note both $ and : are guaranteed otherwise check above would fail */
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WCHAR *begin = strchrW(firstModifier, '$') + 1;
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WCHAR *end = strchrW(firstModifier, ':');
WCHAR env[MAX_PATH];
WCHAR fullpath[MAX_PATH];
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/* Extract the env var */
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memcpy(env, begin, (end-begin) * sizeof(WCHAR));
env[(end-begin)] = 0x00;
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/* If env var not found, return empty string */
if ((GetEnvironmentVariableW(env, fullpath, MAX_PATH) == 0) ||
(SearchPathW(fullpath, outputparam, NULL, MAX_PATH, outputparam, NULL) == 0)) {
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finaloutput[0] = 0x00;
outputparam[0] = 0x00;
skipFileParsing = TRUE;
}
}
/* After this, we need full information on the file,
which is valid not to exist. */
if (!skipFileParsing) {
if (GetFullPathNameW(outputparam, MAX_PATH, fullfilename, NULL) == 0)
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return;
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exists = GetFileAttributesExW(fullfilename, GetFileExInfoStandard,
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&fileInfo);
/* 2. Handle 'a' : Output attributes */
if (exists &&
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memchrW(firstModifier, 'a', modifierLen) != NULL) {
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WCHAR defaults[] = {'-','-','-','-','-','-','-','-','-','\0'};
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doneModifier = TRUE;
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strcpyW(thisoutput, defaults);
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if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
thisoutput[0]='d';
if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
thisoutput[1]='r';
if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_ARCHIVE)
thisoutput[2]='a';
if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
thisoutput[3]='h';
if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_SYSTEM)
thisoutput[4]='s';
if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_COMPRESSED)
thisoutput[5]='c';
/* FIXME: What are 6 and 7? */
if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
thisoutput[8]='l';
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strcatW(finaloutput, thisoutput);
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}
/* 3. Handle 't' : Date+time */
if (exists &&
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memchrW(firstModifier, 't', modifierLen) != NULL) {
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SYSTEMTIME systime;
int datelen;
doneModifier = TRUE;
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if (finaloutput[0] != 0x00) strcatW(finaloutput, space);
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/* Format the time */
FileTimeToSystemTime(&fileInfo.ftLastWriteTime, &systime);
GetDateFormatW(LOCALE_USER_DEFAULT, DATE_SHORTDATE, &systime,
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NULL, thisoutput, MAX_PATH);
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strcatW(thisoutput, space);
datelen = strlenW(thisoutput);
GetTimeFormatW(LOCALE_USER_DEFAULT, TIME_NOSECONDS, &systime,
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NULL, (thisoutput+datelen), MAX_PATH-datelen);
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strcatW(finaloutput, thisoutput);
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}
/* 4. Handle 'z' : File length */
if (exists &&
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memchrW(firstModifier, 'z', modifierLen) != NULL) {
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/* FIXME: Output full 64 bit size (sprintf does not support I64 here) */
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ULONG/*64*/ fullsize = /*(fileInfo.nFileSizeHigh << 32) +*/
fileInfo.nFileSizeLow;
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static const WCHAR fmt[] = {'%','u','\0'};
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doneModifier = TRUE;
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if (finaloutput[0] != 0x00) strcatW(finaloutput, space);
wsprintfW(thisoutput, fmt, fullsize);
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strcatW(finaloutput, thisoutput);
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}
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/* 4. Handle 's' : Use short paths (File doesn't have to exist) */
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if (memchrW(firstModifier, 's', modifierLen) != NULL) {
if (finaloutput[0] != 0x00) strcatW(finaloutput, space);
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/* Don't flag as doneModifier - %~s on its own is processed later */
GetShortPathNameW(outputparam, outputparam, sizeof(outputparam)/sizeof(outputparam[0]));
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}
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/* 5. Handle 'f' : Fully qualified path (File doesn't have to exist) */
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/* Note this overrides d,p,n,x */
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if (memchrW(firstModifier, 'f', modifierLen) != NULL) {
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doneModifier = TRUE;
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if (finaloutput[0] != 0x00) strcatW(finaloutput, space);
strcatW(finaloutput, fullfilename);
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} else {
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WCHAR drive[10];
WCHAR dir[MAX_PATH];
WCHAR fname[MAX_PATH];
WCHAR ext[MAX_PATH];
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BOOL doneFileModifier = FALSE;
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if (finaloutput[0] != 0x00) strcatW(finaloutput, space);
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/* Split into components */
WCMD_splitpath(fullfilename, drive, dir, fname, ext);
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/* 5. Handle 'd' : Drive Letter */
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if (memchrW(firstModifier, 'd', modifierLen) != NULL) {
strcatW(finaloutput, drive);
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doneModifier = TRUE;
doneFileModifier = TRUE;
}
/* 6. Handle 'p' : Path */
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if (memchrW(firstModifier, 'p', modifierLen) != NULL) {
strcatW(finaloutput, dir);
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doneModifier = TRUE;
doneFileModifier = TRUE;
}
/* 7. Handle 'n' : Name */
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if (memchrW(firstModifier, 'n', modifierLen) != NULL) {
strcatW(finaloutput, fname);
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doneModifier = TRUE;
doneFileModifier = TRUE;
}
/* 8. Handle 'x' : Ext */
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if (memchrW(firstModifier, 'x', modifierLen) != NULL) {
strcatW(finaloutput, ext);
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doneModifier = TRUE;
doneFileModifier = TRUE;
}
/* If 's' but no other parameter, dump the whole thing */
if (!doneFileModifier &&
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memchrW(firstModifier, 's', modifierLen) != NULL) {
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doneModifier = TRUE;
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if (finaloutput[0] != 0x00) strcatW(finaloutput, space);
strcatW(finaloutput, outputparam);
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}
}
}
/* If No other modifier processed, just add in parameter */
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if (!doneModifier) strcpyW(finaloutput, outputparam);
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/* Finish by inserting the replacement into the string */
WCMD_strsubstW(*start, lastModifier+1, finaloutput, -1);
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}
/*******************************************************************
* WCMD_call - processes a batch call statement
*
* If there is a leading ':', calls within this batch program
* otherwise launches another program.
*/
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void WCMD_call (WCHAR *command) {
/* Run other program if no leading ':' */
if (*command != ':') {
WCMD_run_program(command, 1);
} else {
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WCHAR gotoLabel[MAX_PATH];
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strcpyW(gotoLabel, param1);
if (context) {
LARGE_INTEGER li;
/* Save the current file position, call the same file,
restore position */
li.QuadPart = 0;
li.u.LowPart = SetFilePointer(context -> h, li.u.LowPart,
&li.u.HighPart, FILE_CURRENT);
WCMD_batch (param1, command, 1, gotoLabel, context->h);
SetFilePointer(context -> h, li.u.LowPart,
&li.u.HighPart, FILE_BEGIN);
} else {
WCMD_output_asis( WCMD_LoadMessage(WCMD_CALLINSCRIPT));
}
}
}