[mjansen] 72763: [CRT] Fix __getmainargs parsing for a commandline ending with spaces. Patch by Yaroslav Veremenko CORE-9199 #comment Thanks, please re-test!

Author: mjansen
Date: Wed Sep 21 19:34:42 2016
New Revision: 72763

URL: http://svn.reactos.org/svn/reactos?rev=72763&view=rev
Log:
[CRT] Fix __getmainargs parsing for a commandline ending with spaces. Patch by Yaroslav
Veremenko CORE-9199 #comment Thanks, please re-test!

Modified:
    trunk/reactos/sdk/lib/crt/misc/getargs.c

Modified: trunk/reactos/sdk/lib/crt/misc/getargs.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/sdk/lib/crt/misc/getargs.c…
==============================================================================
--- trunk/reactos/sdk/lib/crt/misc/getargs.c	[iso-8859-1] (original)
+++ trunk/reactos/sdk/lib/crt/misc/getargs.c	[iso-8859-1] Wed Sep 21 19:34:42 2016
@@ -181,7 +181,7 @@
  */
 void __getmainargs(int* argc, char*** argv, char*** env, int expand_wildcards, int*
new_mode)
 {
-   int i, doexpand, slashesAdded, escapedQuote, inQuotes, bufferIndex;
+   int i, doexpand, slashesAdded, escapedQuote, inQuotes, bufferIndex, anyLetter;
    size_t len;
    char* buffer;
 
@@ -190,6 +190,7 @@
    i = 0;
    doexpand = expand_wildcards;
    escapedQuote = FALSE;
+   anyLetter = FALSE;
    slashesAdded = 0;
    inQuotes = 0;
    bufferIndex = 0;
@@ -213,7 +214,11 @@
       // Arguments are delimited by white space, which is either a space or a tab.
       if (i >= len || ((_acmdln[i] == ' ' || _acmdln[i] == '\t')
&& !inQuotes))
       {
-         aexpand(strndup(buffer, bufferIndex), doexpand);
+         // Handle the case when empty spaces are in the end of the cmdline
+         if (anyLetter) 
+         {
+            aexpand(strndup(buffer, bufferIndex), doexpand);
+         }
          // Copy the last element from buffer and quit the loop
          if (i >= len)
          {
@@ -222,11 +227,14 @@
 
          while (_acmdln[i] == ' ' || _acmdln[i] == '\t')
             ++i;
+         anyLetter = FALSE;
          bufferIndex = 0;
          slashesAdded = 0;
          escapedQuote = FALSE;
          continue;
       }
+
+      anyLetter = TRUE;
 
       if (_acmdln[i] == '\\')
       {
@@ -307,7 +315,7 @@
 void __wgetmainargs(int* argc, wchar_t*** wargv, wchar_t*** wenv,
                     int expand_wildcards, int* new_mode)
 {
-   int i, doexpand, slashesAdded, escapedQuote, inQuotes, bufferIndex;
+   int i, doexpand, slashesAdded, escapedQuote, inQuotes, bufferIndex, anyLetter;
    size_t len;
    wchar_t* buffer;
 
@@ -316,6 +324,7 @@
    i = 0;
    doexpand = expand_wildcards;
    escapedQuote = FALSE;
+   anyLetter = TRUE;
    slashesAdded = 0;
    inQuotes = 0;
    bufferIndex = 0;
@@ -339,7 +348,11 @@
       // Arguments are delimited by white space, which is either a space or a tab.
       if (i >= len || ((_wcmdln[i] == ' ' || _wcmdln[i] == '\t')
&& !inQuotes))
       {
-         wexpand(wcsndup(buffer, bufferIndex), doexpand);
+         // Handle the case when empty spaces are in the end of the cmdline
+         if (anyLetter)
+         {
+            wexpand(wcsndup(buffer, bufferIndex), doexpand);
+         }
          // Copy the last element from buffer and quit the loop
          if (i >= len)
          {
@@ -348,11 +361,14 @@
 
          while (_wcmdln[i] == ' ' || _wcmdln[i] == '\t')
             ++i;
+         anyLetter = FALSE;
          bufferIndex = 0;
          slashesAdded = 0;
          escapedQuote = FALSE;
          continue;
       }
+
+      anyLetter = TRUE;
 
       if (_wcmdln[i] == '\\')
       {