Minor improvements for the BSD compatibility library:

* Added {get|set|end}usershell() functions.
* Define MAXLOGNAME, and L_SET, L_INCR, and L_XTND.
* The pidfile stuff in libutil.h is now included, too.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23827 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/compatibility/bsd/unistd.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006, Haiku, Inc. All Rights Reserved.
+ * Copyright 2006-2008, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _BSD_UNISTD_H_
@@ -9,12 +9,20 @@
 #include_next <unistd.h>
 
 
+#define L_SET	SEEK_SET
+#define	L_INCR	SEEK_CUR
+#define	L_XTND	SEEK_END
+
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+void	endusershell(void);
 char	*getpass(const char *prompt);
+char	*getusershell(void);
 int		issetugid(void);
+void	setusershell(void);
 
 #ifdef __cplusplus
 }