1 files changed, 76 insertions, 16 deletions

diff --git a/winsup/cygwin/pwdgrp.h b/winsup/cygwin/pwdgrp.h
index 38a7c80f4..530adf63a 100644
--- a/winsup/cygwin/pwdgrp.h
+++ b/winsup/cygwin/pwdgrp.h
@@ -27,29 +27,89 @@ public:
   operator pwdgrp_state ()
     {
       if (state != uninitialized && file_w32[0] && cygheap->etc_changed ())
-        {
-          HANDLE h;
-          WIN32_FIND_DATA data;
-
-          if ((h = FindFirstFile (file_w32, &data)) != INVALID_HANDLE_VALUE)
-            {
-              if (CompareFileTime (&data.ftLastWriteTime, &last_modified) > 0)
-                state = uninitialized;
-              FindClose (h);
-            }
-        }
+	{
+	  HANDLE h;
+	  WIN32_FIND_DATA data;
+
+	  if ((h = FindFirstFile (file_w32, &data)) != INVALID_HANDLE_VALUE)
+	    {
+	      if (CompareFileTime (&data.ftLastWriteTime, &last_modified) > 0)
+		state = uninitialized;
+	      FindClose (h);
+	    }
+	}
       return state;
     }
   void operator = (pwdgrp_state nstate)
     {
       state = nstate;
     }
-  void set_last_modified (FILE *f)
+  void set_last_modified (HANDLE fh, const char *name)
     {
       if (!file_w32[0])
-        strcpy (file_w32, cygheap->fdtab[fileno (f)]->get_win32_name ());
-
-      GetFileTime (cygheap->fdtab[fileno (f)]->get_handle (),
-		   NULL, NULL, &last_modified);
+	strcpy (file_w32, name);
+      GetFileTime (fh, NULL, NULL, &last_modified);
     }
 };
+
+class pwdgrp_read {
+  path_conv pc;
+  HANDLE fh;
+  char *buf;
+  char *lptr, *eptr;
+
+public:
+  bool open (const char *posix_fname)
+  {
+    if (buf)
+      free (buf);
+    buf = lptr = eptr = NULL;
+
+    pc.check (posix_fname);
+    if (pc.error || !pc.exists () || !pc.isdisk () || pc.isdir ())
+      return false;
+
+    fh = CreateFile (pc, GENERIC_READ, wincap.shared (), NULL, OPEN_EXISTING,
+		     FILE_ATTRIBUTE_NORMAL, 0);
+    if (fh)
+      {
+	DWORD size = GetFileSize (fh, NULL), read_bytes;
+	buf = (char *) malloc (size + 1);
+	if (!ReadFile (fh, buf, size, &read_bytes, NULL))
+	  {
+	    if (buf)
+	      free (buf);
+	    buf = NULL;
+	    CloseHandle (fh);
+	    fh = NULL;
+	    return false;
+	  }
+        buf[read_bytes] = '\0';
+	return true;
+      }
+    return false;
+  }
+  char *gets ()
+  {
+    if (!buf)
+      return NULL;
+    if (!lptr)
+      lptr = buf;
+    else if (!eptr)
+      return lptr = NULL;
+    else
+      lptr = eptr;
+    eptr = strchr (lptr, '\n');
+    if (eptr)
+      *eptr++ = '\0';
+    return lptr;
+  }
+  inline HANDLE get_fhandle () { return fh; }
+  inline const char *get_fname () { return pc; }
+  void close ()
+  {
+    if (fh)
+      CloseHandle (fh);
+    fh = NULL;
+  }
+};