[project @ 2005-01-29 16:10:27 by wolfgang]

[ghc-base.git] / cbits / dirUtils.c

diff --git a/cbits/dirUtils.c b/cbits/dirUtils.c
index 316a689..fdcdf29 100644 (file)
--- a/cbits/dirUtils.c
+++ b/cbits/dirUtils.c
@@ -4,20 +4,54 @@
  * Directory Runtime Support
  */
 
-#include "config.h"
+#include "ghcconfig.h"
 
 // The following is required on Solaris to force the POSIX versions of
 // the various _r functions instead of the Solaris versions.
-#ifdef solaris2_TARGET_OS
+#ifdef solaris2_HOST_OS
 #define _POSIX_PTHREAD_SEMANTICS
 #endif
 
 #include "HsBase.h"
 
-#if defined(mingw32_TARGET_OS)
+#if defined(mingw32_HOST_OS) || defined(__MINGW32__) || defined(_MSC_VER)
 #include <windows.h>
+
+static
+int
+toErrno(DWORD rc)
+{
+    switch (rc) {
+    case ERROR_FILE_NOT_FOUND:    return ENOENT;
+    case ERROR_PATH_NOT_FOUND:    return ENOENT;
+    case ERROR_TOO_MANY_OPEN_FILES: return EMFILE;
+    case ERROR_ACCESS_DENIED:     return EACCES;
+    case ERROR_INVALID_HANDLE:    return EBADF; /* kinda sorta */
+    case ERROR_NOT_ENOUGH_MEMORY: return ENOMEM;
+    case ERROR_INVALID_ACCESS:    return EINVAL;
+    case ERROR_INVALID_DATA:      return EINVAL;
+    case ERROR_OUTOFMEMORY:       return ENOMEM;
+    case ERROR_SHARING_VIOLATION: return EACCES;
+    case ERROR_LOCK_VIOLATION:    return EACCES;
+    case ERROR_ALREADY_EXISTS:    return EEXIST;
+    case ERROR_BUSY:              return EBUSY;
+    case ERROR_BROKEN_PIPE:       return EPIPE;
+    case ERROR_PIPE_CONNECTED:    return EBUSY;
+    case ERROR_PIPE_LISTENING:    return EBUSY;
+    case ERROR_NOT_CONNECTED:     return EINVAL;
+
+    case ERROR_NOT_OWNER:         return EPERM;
+    case ERROR_DIRECTORY:         return ENOTDIR;
+    case ERROR_FILE_INVALID:      return EACCES;
+    case ERROR_FILE_EXISTS:       return EEXIST;
+
+    default:
+       return rc;
+    }
+}
 #endif
 
+
 /*
  * read an entry from the directory stream; opt for the
  * re-entrant friendly way of doing this, if available.
@@ -29,12 +63,12 @@ __hscore_readdir( HsAddr dirPtr, HsAddr pDirEnt )
 #if HAVE_READDIR_R
   struct dirent* p;
   int res;
-  static unsigned int nm_max = -1;
+  static unsigned int nm_max = (unsigned int)-1;
   
   if (pDirE == NULL) {
     return -1;
   }
-  if (nm_max == -1) {
+  if (nm_max == (unsigned int)-1) {
 #ifdef NAME_MAX
     nm_max = NAME_MAX + 1;
 #else
@@ -47,7 +81,11 @@ __hscore_readdir( HsAddr dirPtr, HsAddr pDirEnt )
   if (p == NULL) return -1;
   res = readdir_r((DIR*)dirPtr, p, pDirE);
   if (res != 0) {
-    *pDirE = NULL;
+      *pDirE = NULL;
+      free(p);
+  }
+  else if (*pDirE == NULL) {
+    // end of stream
     free(p);
   }
   return res;
@@ -79,21 +117,20 @@ HsInt
 __hscore_renameFile( HsAddr src,
                     HsAddr dest)
 {
-#if defined(_MSC_VER) || defined(_WIN32)
+#if defined(mingw32_HOST_OS) || defined(__MINGW32__) || defined(_MSC_VER)
     static int forNT = -1;
-    DWORD rc;
     
     /* ToDo: propagate error codes back */
     if (MoveFileA(src, dest)) {
        return 0;
     } else {
-       rc = GetLastError();
+       ;
     }
     
     /* Failed...it could be because the target already existed. */
     if ( !GetFileAttributes(dest) ) {
        /* No, it's not there - just fail. */
-       errno = 0;
+       errno = toErrno(GetLastError());
        return (-1);
     }
 
@@ -101,7 +138,7 @@ __hscore_renameFile( HsAddr src,
        OSVERSIONINFO ovi;
        ovi.dwOSVersionInfoSize = sizeof(ovi);
        if ( !GetVersionEx(&ovi) ) {
-           errno = 0; 
+           errno = toErrno(GetLastError()); 
            return (-1);
        }
        forNT = ((ovi.dwPlatformId & VER_PLATFORM_WIN32_NT) != 0);
@@ -112,7 +149,7 @@ __hscore_renameFile( HsAddr src,
        if ( MoveFileExA(src, dest, MOVEFILE_REPLACE_EXISTING) ) {
            return 0;
        } else {
-           errno = 0; 
+           errno = toErrno(GetLastError()); 
            return (-1);
        }
     }
@@ -123,11 +160,11 @@ __hscore_renameFile( HsAddr src,
        if (MoveFileA(src,dest)) {
            return 0;
        } else {
-           errno = 0;
+           errno = toErrno(GetLastError());
            return (-1);
        }
     } else {
-       errno = 0;
+       errno = toErrno(GetLastError());
        return (-1);
     }
 #else