[reactos] 01/01: [CMD] Use GetFullPathName instead of copying buffers when resolving executable names

[Jérôme Gardou]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=521d330d048af5df80b2f…

commit 521d330d048af5df80b2ffdb268141f907de4844
Author:     Jérôme Gardou <jerome.gardou(a)reactos.org>
AuthorDate: Tue Jun 8 18:04:35 2021 +0200
Commit:     Jérôme Gardou <zefklop(a)users.noreply.github.com>
CommitDate: Wed Jun 9 11:23:39 2021 +0200

    [CMD] Use GetFullPathName instead of copying buffers when resolving executable names
    
    This properly strips spaces & dots at the end of the file.
    
    Fixes the infinite loop with CreateProcess calling cmd over and over with e.g.
'cmd /c "some_script.bat   "'
    Uncovered by recent ShellExecuteEx tests
    Dedicated to Katayama for the trigger & Hermès for the tests
---
 base/shell/cmd/where.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/base/shell/cmd/where.c b/base/shell/cmd/where.c
index 0ba4c08c5ec..4030a877a73 100644
--- a/base/shell/cmd/where.c
+++ b/base/shell/cmd/where.c
@@ -106,7 +106,7 @@ SearchForExecutableSingle (LPCTSTR pFileName, LPTSTR pFullName, LPTSTR
pPathExt,
     if (IsExistingFile (szPathBuffer))
     {
         TRACE ("Found: \'%s\'\n", debugstr_aw(szPathBuffer));
-        _tcscpy (pFullName, szPathBuffer);
+        GetFullPathName(szPathBuffer, MAX_PATH, pFullName, NULL);
         return TRUE;
     }
 
@@ -130,7 +130,7 @@ SearchForExecutableSingle (LPCTSTR pFileName, LPTSTR pFullName, LPTSTR
pPathExt,
         if (IsExistingFile (szPathBuffer))
         {
             TRACE ("Found: \'%s\'\n", debugstr_aw(szPathBuffer));
-            _tcscpy (pFullName, szPathBuffer);
+            GetFullPathName(szPathBuffer, MAX_PATH, pFullName, NULL);
             return TRUE;
         }
     }