* file.c (rb_stat_mode): generalized st_mode mask.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18365 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 11 insertions, 9 deletions

diff --git a/ChangeLog b/ChangeLog
index 4b61384482..e35ed05330 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Aug  5 14:19:22 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_stat_mode): generalized st_mode mask.
+
 Tue Aug  5 12:43:47 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* io.c (retry_sendfile, retry_read): ENOSYS and EWOULDBLOCK are not
diff --git a/file.c b/file.c
index 78e7a14591..6888ad0ea3 100644
--- a/file.c
+++ b/file.c
@@ -233,6 +233,8 @@ rb_stat_cmp(VALUE self, VALUE other)
     return Qnil;
 }
 
+#define ST2UINT(val) ((val) & ~(~1UL << (sizeof(val) * CHAR_BIT - 1)))
+
 /*
  *  call-seq:
  *     stat.dev    => fixnum
@@ -330,11 +332,7 @@ rb_stat_ino(VALUE self)
 static VALUE
 rb_stat_mode(VALUE self)
 {
-#ifdef __BORLANDC__
-    return UINT2NUM((unsigned short)(get_stat(self)->st_mode));
-#else
-    return UINT2NUM(get_stat(self)->st_mode);
-#endif
+    return UINT2NUM(ST2UINT(get_stat(self)->st_mode));
 }
 
 /*
@@ -4034,10 +4032,10 @@ rb_stat_wr(VALUE obj)
 {
 #ifdef S_IROTH
     if ((get_stat(obj)->st_mode & (S_IROTH)) == S_IROTH) {
-      return UINT2NUM(get_stat(obj)->st_mode & (S_IRUGO|S_IWUGO|S_IXUGO));
+	return UINT2NUM(get_stat(obj)->st_mode & (S_IRUGO|S_IWUGO|S_IXUGO));
     }
     else {
-      return Qnil;
+	return Qnil;
     }
 #endif
 }
@@ -4126,10 +4124,10 @@ rb_stat_ww(VALUE obj)
 {
 #ifdef S_IROTH
     if ((get_stat(obj)->st_mode & (S_IWOTH)) == S_IWOTH) {
-      return UINT2NUM(get_stat(obj)->st_mode & (S_IRUGO|S_IWUGO|S_IXUGO));
+	return UINT2NUM(get_stat(obj)->st_mode & (S_IRUGO|S_IWUGO|S_IXUGO));
     }
     else {
-      return Qnil;
+	return Qnil;
     }
 #endif
 }