[SHELL/EXPERIMENTS]

* Create a branch for some evul shell experiments.

svn path=/branches/shell-experiments/; revision=61927

lib/sdk/crt/stdlib/fullpath.c

@@ -0,0 +1,73 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS CRT library
+ * FILE:        lib/sdk/crt/stdlib/fullpath.c
+ * PURPOSE:     Gets the fullpathname
+ * PROGRAMER:   Pierre Schweitzer (pierre.schweitzer@reactos.org)
+ */
+
+#include <precomp.h>
+#include <tchar.h>
+
+/*
+ * @implemented
+ */
+_TCHAR* _tfullpath(_TCHAR* absPath, const _TCHAR* relPath, size_t maxLength)
+{
+    _TCHAR* lpBuffer;
+    _TCHAR* lpFilePart;
+    DWORD retval;
+
+    /* First check if entry relative path was given */
+    if (!relPath || relPath[0] == 0)
+    {
+        /* If not, just try to return current dir */
+        return _tgetcwd(absPath, maxLength);
+    }
+
+    /* If no output buffer was given */
+    if (!absPath)
+    {
+        /* Allocate one with fixed length */
+        maxLength = MAX_PATH;
+        lpBuffer = malloc(maxLength);
+        if (!lpBuffer)
+        {
+            errno = ENOMEM;
+            return NULL;
+        }
+    }
+    else
+    {
+        lpBuffer = absPath;
+    }
+
+    /* Really get full path */
+    retval = GetFullPathName(relPath, (DWORD)maxLength, lpBuffer, &lpFilePart);
+    /* Check for failures */
+    if (retval > maxLength)
+    {
+        /* Path too long, free (if needed) and return */
+        if (!absPath)
+        {
+            free(lpBuffer);
+        }
+
+        errno = ERANGE;
+        return NULL;
+    }
+    else if (!retval)
+    {
+        /* Other error, free (if needed), translate error, and return */
+        if (!absPath)
+        {
+            free(lpBuffer);
+        }
+
+        _dosmaperr(GetLastError());
+        return NULL;
+    }
+
+    /* Return buffer. Up to the caller to free if needed */
+    return lpBuffer;
+}