From fce2bb5ea8b804d31c673df9a6c8200ae73ea268 Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 18 Nov 2004 11:52:46 +0000
Subject: * win32/win32.[ch] (rb_w32_isatty): new function to replace MSVCRT's 
  isatty because it never sets errno.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7312 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 win32/win32.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'win32/win32.c')

diff --git a/win32/win32.c b/win32/win32.c
index b212d3874c..1e30ffec9b 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -3424,6 +3424,20 @@ rb_w32_snprintf(char *buf, size_t size, const char *format, ...)
     return ret;
 }
 
+int
+rb_w32_isatty(int fd)
+{
+    if (!(_osfile(fd) & FOPEN)) {
+	errno = EBADF;
+	return 0;
+    }
+    if (!(_osfile(fd) & FDEV)) {
+	errno = ENOTTY;
+	return 0;
+    }
+    return 1;
+}
+
 //
 // Fix bcc32's stdio bug
 //
-- 
cgit v1.2.3