1 files changed, 76 insertions, 0 deletions
diff --git a/gnu/libexec/uucp/libuuconf/grdcmp.c b/gnu/libexec/uucp/libuuconf/grdcmp.c
new file mode 100644
index 000000000000..9d80242266f1
--- /dev/null
+++ b/gnu/libexec/uucp/libuuconf/grdcmp.c
@@ -0,0 +1,76 @@
+/* grdcmp.c
+   Compare two grades.
+
+   Copyright (C) 1992 Ian Lance Taylor
+
+   This file is part of the Taylor UUCP uuconf library.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License
+   as published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   The author of the program may be contacted at ian@airs.com or
+   c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
+   */
+
+#include "uucnfi.h"
+
+#if USE_RCS_ID
+const char _uuconf_grdcmp_rcsid[] = "$Id: grdcmp.c,v 1.1 1993/08/05 18:25:22 conklin Exp $";
+#endif
+
+#include <ctype.h>
+
+/* Compare two grades, returning < 0 if b1 should be executed before
+   b2, == 0 if they are the same, or > 0 if b1 should be executed
+   after b2.  This can not fail, and does not return a standard uuconf
+   error code.
+
+   This implementation assumes that the upper case letters are in
+   sequence, and that the lower case letters are in sequence.  */
+
+int
+uuconf_grade_cmp (barg1, barg2)
+     int barg1;
+     int barg2;
+{
+  int b1, b2;
+
+  /* Make sure the arguments are unsigned.  */
+  b1 = (int) BUCHAR (barg1);
+  b2 = (int) BUCHAR (barg2);
+
+  if (isdigit (b1))
+    {
+      if (isdigit (b2))
+	return b1 - b2;
+      else
+	return -1;
+    }
+  else if (isupper (b1))
+    {
+      if (isdigit (b2))
+	return 1;
+      else if (isupper (b2))
+	return b1 - b2;
+      else
+	return -1;
+    }
+  else
+    {
+      if (! islower (b2))
+	return 1;
+      else
+	return b1 - b2;
+    }
+}