Re^2: [Win32] Verify filename (case sensitively)

[Anonymous Monk]

Win32::StrictFileNames does that

$ perl -Mcgi -e 1

$ perl -Mwin32::strictfileNames -e 1

$ perl -Mwin32::strictfileNames -Mcgi -e 1
Can't locate cgi.pm in @INC (@INC contains:...

$ perl -Mwin32::strictfileNames  -Mcgi -e 1
Can't locate cgi.pm in @INC (@INC contains:...

[syphilis]

Win32::StrictFileNames does that

That seems to make use of GetLongPathName(), too.
It won't build successfully for me using mingw - all tests die with the following diagnostic:

t/7-rmdir.t ... Can't load 'C:\sisyphusion\Win32-StrictFileNames-0.01\blib\arch/ auto/Win32/StrictFileNames/StrictFileNames.dll' for module Win32::StrictFileNames: load_file:Invalid access to memory location at C:/MinGW/perl512/lib/DynaLoader.pm line 200.
at t/7-rmdir.t line 8

Update: And similar errors when building using an MS compiler (MSVC++-7.0) instead of gcc.

Also, I notice that the author provides, on his own ppm repo, packages for this module only for perls 5.6 and 5.8. (I don't know if that's because they pose a problem with later versions of perl.)

Does use Win32::StrictFileNames; catch *all* instances of case-mismatch (eg with '-e', 'open') ?

Looks like an interesting module to re-visit if I get the time (before I forget all about it :-).
For the moment, the Win32::GetLongPathName() function will suffice.

And interesting that, going by your example, the module itself works irrespective of the case that's used when loading it.

Cheers,
Rob

[bulk88]

Compiler fine. No compiler warnings.

Test Summary Report
-------------------
t/2-exist.t (Wstat: 2304 Tests: 15 Failed: 9)
  Failed tests:  4-6, 8-11, 14-15
  Non-zero exit status: 9
t/3-stat.t  (Wstat: 2304 Tests: 15 Failed: 9)
  Failed tests:  4-6, 8-11, 14-15
  Non-zero exit status: 9
t/4-dir.t   (Wstat: 1792 Tests: 13 Failed: 7)
  Failed tests:  4-5, 7-9, 12-13
  Non-zero exit status: 7
t/7-rmdir.t (Wstat: 2048 Tests: 14 Failed: 8)
  Failed tests:  2, 5, 7, 9-10, 12-14
  Non-zero exit status: 8
Files=9, Tests=114,  2 wallclock secs ( 0.13 usr +  0.05 sys =  0.17 C
+PU)
Result: FAIL
Failed 4/9 test programs. 33/114 subtests failed.
NMAKE : fatal error U1077: 'C:\perl512\bin\perl.exe' : return code '0x
+ff'
Stop.

C:\Documents and Settings\Owner\Desktop\cpan libs\Win32-StrictFileName
+s-0.01>

Can't load 'C:\sisyphusion\Win32-StrictFileNames-0.01\blib\arch/ auto/
+Win32/StrictFileNames/StrictFileNames.dll' for module Win32::StrictFi
+leNames: load_file:Invalid access to memory location at C:/MinGW/perl
+512/lib/DynaLoader.pm line 200.

means something in DllMain did an access vio.

1 minute later of research.



// ========== Initialisation

//--------------------------------------------------------------------
+---------
//   DllMain()
// Function called by the system when processes and threads are initia
+lized
// and terminated.
//--------------------------------------------------------------------
+---------

BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpRese
+rved)
{
  BOOL bResult = TRUE;
  int i;
  char szMsvcrt[3][16] = {
                           "MSVCRT.dll",
                           "MSVCRT70.dll",
                           "MSVCRT71.dll"
                         };

  switch( dwReason )
  {
    case DLL_PROCESS_ATTACH:
      hDllInstance = hInstance;  // save Dll instance handle
      DEBUGSTR("hDllInstance = 0x%.8x", hDllInstance);
      bResult &= HookAPIAllMod("KERNEL32.dll", "CreateFileA", (PROC)My
+_CreateFileA);
      DEBUGSTR("CreateFileA = %d", bResult);

      bResult &= HookAPIAllMod("KERNEL32.dll", "GetFileAttributesA", (
+PROC)My_GetFileAttributesA);
      DEBUGSTR("GetFileAttributesA = %d", bResult);

      for (i=0; i<3; i++) {
        if ( GetModuleHandle(szMsvcrt[i]) ) {
          bResult &= HookAPIAllMod(szMsvcrt[i], "_stati64", (PROC)My_s
+tati64);
          bResult &= HookAPIAllMod(szMsvcrt[i], "_stat", (PROC)My_stat
+);
          bResult &= HookAPIAllMod(szMsvcrt[i], "_rmdir", (PROC)My_rmd
+ir);
          bResult &= HookAPIAllMod(szMsvcrt[i], "_chdir", (PROC)My_chd
+ir);
          DEBUGSTR("%s functions = %d", szMsvcrt[i], bResult);
        }
      }

    case DLL_PROCESS_DETACH:
      break;
  }
  return (bResult);
}

WHAT???!!!! I see a familiar friend, I guess I am not the first to do IAT patching with Perl in XS. I'm guessing bitrot/compiler/crt versions or x64 broke this module.

[Anonymous Monk]

Well, it compiles for me with mingw32 gcc version 4.7.0 (GCC)

[syphilis]

Well, it compiles for me with mingw32 gcc version 4.7.0 (GCC)

What's your perl -V (that's an uppercase 'V') output ?

Afterthought: What OS are you running ? (I'm on Vista.)

Cheers,
Rob