This commit was generated by cvs2svn to compensate for changes in r1815,

[bootcd.git] / syslinux / com32 / lib / sys / isatty.c

diff --git a/syslinux/com32/lib/sys/isatty.c b/syslinux/com32/lib/sys/isatty.c
new file mode 100644 (file)
index 0000000..2a2d3e3
--- /dev/null
+++ b/syslinux/com32/lib/sys/isatty.c
@@ -0,0 +1,53 @@
+#ident "$Id: isatty.c,v 1.2 2004/11/23 23:43:02 hpa Exp $"
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 2004 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *   
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *   
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * isatty.c
+ *
+ * Return if this is a tty or not
+ */
+
+#include <errno.h>
+#include <string.h>
+#include <com32.h>
+#include <minmax.h>
+#include <unistd.h>
+#include <klibc/compiler.h>
+#include "file.h"
+
+int isatty(int fd)
+{
+  struct file_info *fp = &__file_info[fd];
+
+  if ( fd >= NFILES || !fp->iop ) {
+    errno = EBADF;
+    return -1;
+  }
+
+  return (fp->iop->flags & __DEV_TTY);
+}