[khornicek] 64787: [CMD] - prevent a buffer underrun (fixes stray quotes being appended on autocomplete in some cases) - check if the input string is not empty (fixes first file in directory gettin...

Author: khornicek
Date: Fri Oct 17 16:39:54 2014
New Revision: 64787

URL: http://svn.reactos.org/svn/reactos?rev=64787&view=rev
Log:
[CMD]
- prevent a buffer underrun (fixes stray quotes being appended on autocomplete in some
cases)
- check if the input string is not empty (fixes first file in directory getting skipped on
autocomplete)
- fix some typos
CORE-8623

Modified:
    trunk/reactos/base/shell/cmd/filecomp.c

Modified: trunk/reactos/base/shell/cmd/filecomp.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/shell/cmd/filecomp.c?…
==============================================================================
--- trunk/reactos/base/shell/cmd/filecomp.c	[iso-8859-1] (original)
+++ trunk/reactos/base/shell/cmd/filecomp.c	[iso-8859-1] Fri Oct 17 16:39:54 2014
@@ -556,7 +556,7 @@
     /* Used to find and assemble the string that is returned */
     TCHAR szBaseWord[MAX_PATH];
     TCHAR szPrefix[MAX_PATH];
-    TCHAR szOrginal[MAX_PATH];
+    TCHAR szOriginal[MAX_PATH];
     TCHAR szSearchPath[MAX_PATH];
     /* Save the strings used last time, so if they hit tab again */
     static TCHAR LastReturned[MAX_PATH];
@@ -586,9 +586,9 @@
     if (!_tcsnicmp (line, _T("rd "), 3) || !_tcsnicmp (line, _T("cd
"), 3))
         ShowAll = FALSE;
 
-    /* Copy the string, str can be edited and orginal should not be */
+    /* Copy the string, str can be edited and original should not be */
     _tcscpy(str,strIN);
-    _tcscpy(szOrginal,strIN);
+    _tcscpy(szOriginal,strIN);
 
     /* Look to see if the cusor is not at the end of the string */
     if ((cusor + 1) < _tcslen(str))
@@ -656,8 +656,8 @@
     hFile = FindFirstFile (szSearchPath, &file);
     if (hFile == INVALID_HANDLE_VALUE)
     {
-        /* Assemble the orginal string and return */
-        _tcscpy(strOut,szOrginal);
+        /* Assemble the original string and return */
+        _tcscpy(strOut,szOriginal);
         return;
     }
 
@@ -685,8 +685,8 @@
         {
             /* Don't leak old buffer */
             cmd_free(oldFileList);
-            /* Assemble the orginal string and return */
-            _tcscpy(strOut,szOrginal);
+            /* Assemble the original string and return */
+            _tcscpy(strOut,szOriginal);
             FindClose(hFile);
             ConOutFormatMessage (GetLastError());
             return;
@@ -698,11 +698,10 @@
 
     FindClose(hFile);
 
-    /* Check the size of the list to see if we
-       found any matches */
+    /* Check the size of the list to see if we found any matches */
     if (FileListSize == 0)
     {
-        _tcscpy(strOut,szOrginal);
+        _tcscpy(strOut,szOriginal);
         if (FileList != NULL)
             cmd_free(FileList);
         return;
@@ -712,7 +711,7 @@
     qsort(FileList,FileListSize,sizeof(FileName), compare);
 
     /* Find the next/previous */
-    if (!_tcscmp(szOrginal,LastReturned))
+    if (_tcslen(szOriginal) && !_tcscmp(szOriginal,LastReturned))
     {
         if (bNext)
         {
@@ -734,8 +733,7 @@
         Sel = 0;
     }
 
-    /* nothing found that matched last time
-       so return the first thing in the list */
+    /* nothing found that matched last time so return the first thing in the list */
     strOut[0] = _T('\0');
 
     /* Special character in the name */
@@ -792,7 +790,7 @@
         }
     }
 
-    if (szPrefix[_tcslen(szPrefix) - 1] == _T('\"') || NeededQuote)
+    if (NeededQuote || (_tcslen(szPrefix) && szPrefix[_tcslen(szPrefix) - 1] ==
_T('\"')))
         _tcscat(strOut,_T("\""));
 
     _tcscpy(LastReturned,strOut);