gcc/java/win32-host.c

   1 /* Platform-Specific Win32 Functions
   2    Copyright (C) 2003-2015 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.
  19
  20 Java and all Java-based marks are trademarks or registered trademarks
  21 of Sun Microsystems, Inc. in the United States and other countries.
  22 The Free Software Foundation is independent of Sun Microsystems, Inc.  */
  23
  24 /* Written by Mohan Embar <gnustuff@thisiscool.com>, March 2003. */
  25
  26
  27 #include "config.h"
  28 #include "system.h"
  29 #include "coretypes.h"
  30 #include "jcf.h"
  31
  32 #ifdef WIN32
  33
  34 #define WIN32_LEAN_AND_MEAN
  35 #include <windows.h>
  36 #undef WIN32_LEAN_AND_MEAN
  37
  38 /* Simulate an open() failure with ENOENT */
  39 static int
  40 file_not_found (void);
  41
  42 static int
  43 file_not_found (void)
  44 {
  45   errno = ENOENT;
  46   return -1;
  47 }
  48
  49 int
  50 jcf_open_exact_case (const char *filename, int oflag)
  51 {
  52   int filename_len = strlen (filename);
  53   int found_file_len;
  54   HANDLE found_file_handle;
  55   WIN32_FIND_DATA fd;
  56
  57   /* See if we can find this file. */
  58   found_file_handle = FindFirstFile (filename, &fd);
  59   if (found_file_handle == INVALID_HANDLE_VALUE)
  60     return file_not_found ();
  61   FindClose (found_file_handle);
  62
  63   found_file_len = strlen (fd.cFileName);
  64
  65   /* This should never happen. */
  66   if (found_file_len > filename_len)
  67     return file_not_found ();
  68
  69   /* Here, we're only actually comparing the filename and not
  70      checking the case of any containing directory components.
  71      Although we're not fully obeying our contract, checking
  72      all directory components would be tedious and time-consuming
  73      and it's a pretty safe assumption that mixed-case package
  74      names are a fringe case.... */
  75   if (filename_cmp (filename + filename_len - found_file_len, fd.cFileName))
  76     {
  77       /* Reject this because it is not a perfect-case match. */
  78       /* printf("************\nRejected:\n%s\n%s\n************\n\n", filename, fd.cFileName); */
  79       return file_not_found ();
  80     }
  81   else
  82     {
  83       return open (filename, oflag);
  84     }
  85 }
  86
  87 #endif /* WIN32 */