Minor VIA Padlock engine update: eliminate -Wunused warning when *not*

[openssl.git] / crypto / LPdir_win.c

diff --git a/crypto/LPdir_win.c b/crypto/LPdir_win.c
index fcb80049932efb866966863748b59db438fe2390..ec0d798e966eccf7e611abee965505b2ca6114e7 100644 (file)
--- a/crypto/LPdir_win.c
+++ b/crypto/LPdir_win.c
@@ -1,4 +1,4 @@
-/* $LP: LPlib/source/LPdir_win.c,v 1.4 2004/07/20 21:15:55 _cvs_levitte Exp $ */
+/* $LP: LPlib/source/LPdir_win.c,v 1.6 2004/07/21 21:16:23 _cvs_levitte Exp $ */
 /*
  * Copyright (c) 2004, Richard Levitte <richard@levitte.org>
  * All rights reserved.
@@ -30,6 +30,21 @@
 #include "LPdir.h"
 #endif
 
+/* We're most likely overcautious here, but let's reserve for
+    broken WinCE headers and explicitly opt for UNICODE call.
+    Keep in mind that our WinCE builds are compiled with -DUNICODE
+    [as well as -D_UNICODE]. */
+#if defined(LP_SYS_WINCE) && !defined(FindFirstFile)
+# define FindFirstFile FindFirstFileW
+#endif
+#if defined(LP_SYS_WINCE) && !defined(FindFirstFile)
+# define FindNextFile FindNextFileW
+#endif
+
+#ifndef NAME_MAX
+#define NAME_MAX 255
+#endif
+
 struct LP_dir_context_st
 {
   WIN32_FIND_DATA ctx;
@@ -61,20 +76,22 @@ const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
       if (sizeof(TCHAR) != sizeof(char))
        {
          TCHAR *wdir = NULL;
-         size_t index = 0,len=strlen(direcory);
+         /* len_0 denotes string length *with* trailing 0 */ 
+         size_t index = 0,len_0 = strlen(directory) + 1;
 
-         wdir = (TCHAR *)malloc((len + 1) * sizeof(TCHAR));
+         wdir = (TCHAR *)malloc(len_0 * sizeof(TCHAR));
          if (wdir == NULL)
            {
-             errno = ENOMEM;
              free(*ctx);
+             *ctx = NULL;
+             errno = ENOMEM;
              return 0;
            }
 
 #ifdef LP_MULTIBYTE_AVAILABLE
-         if (!MultiByteToWideChar (CP_THREAD_ACP,0,directory,len,wdir,len+1))
+         if (!MultiByteToWideChar(CP_ACP, 0, directory, len_0, (WCHAR *)wdir, len_0))
 #endif
-           for (index = 0; index < strlen(directory) + 1; index++)
+           for (index = 0; index < len_0; index++)
              wdir[index] = (TCHAR)directory[index];
 
          (*ctx)->handle = FindFirstFile(wdir, &(*ctx)->ctx);
@@ -82,7 +99,7 @@ const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
          free(wdir);
        }
       else
-       (*ctx)->handle = FindFirstFile(directory, &(*ctx)->ctx);
+       (*ctx)->handle = FindFirstFile((TCHAR *)directory, &(*ctx)->ctx);
 
       if ((*ctx)->handle == INVALID_HANDLE_VALUE)
        {
@@ -94,7 +111,7 @@ const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
     }
   else
     {
-      if (FindNextFile((*ctx)->handle, (*ctx)->ctx) == FALSE)
+      if (FindNextFile((*ctx)->handle, &(*ctx)->ctx) == FALSE)
        {
          return 0;
        }
@@ -102,21 +119,21 @@ const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)
 
   if (sizeof(TCHAR) != sizeof(char))
     {
-      TCHAR *wdir=(*ctx)->ctx.cFileName;
-      size_t i,len;
+      TCHAR *wdir = (*ctx)->ctx.cFileName;
+      size_t index, len_0 = 0;
 
-      for (len=0;wdir[len] && len<(sizeof((*ctx)->entry_name)-1);)
-       len++;
+      while (wdir[len_0] && len_0 < (sizeof((*ctx)->entry_name) - 1)) len_0++;
+      len_0++;
 
 #ifdef LP_MULTIBYTE_AVAILABLE
-      if (!WideCharToMultiByte (CP_THREAD_ACP,0,wdir,len,
-                               (*ctx)->entry_name,
-                               sizeof((*ctx)->entry_name)-1,NULL,0))
+      if (!WideCharToMultiByte(CP_ACP, 0, (WCHAR *)wdir, len_0, (*ctx)->entry_name,
+                              sizeof((*ctx)->entry_name), NULL, 0))
 #endif
-       for (i=0;i<len;i++) (*ctx)->entry_name[i] = (char)wdir[i];
+       for (index = 0; index < len_0; index++)
+         (*ctx)->entry_name[index] = (char)wdir[index];
     }
   else
-    strncpy((*ctx)->entry_name, (*ctx)->ctx.cFileName,
+    strncpy((*ctx)->entry_name, (const char *)(*ctx)->ctx.cFileName,
            sizeof((*ctx)->entry_name)-1);
 
   (*ctx)->entry_name[sizeof((*ctx)->entry_name)-1] = '\0';
@@ -130,6 +147,7 @@ int LP_find_file_end(LP_DIR_CTX **ctx)
     {
       FindClose((*ctx)->handle);
       free(*ctx);
+      *ctx = NULL;
       return 1;
     }
   errno = EINVAL;