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/libutil.h

@@ -52,15 +52,13 @@ typedef struct _property {
 	char *value;
 } *properties;
 
-#ifdef _SYS_PARAM_H_
 /* for pidfile.c */
 struct pidfh {
 	int	pf_fd;
 	char	pf_path[MAXPATHLEN + 1];
-	__dev_t	pf_dev;
+	dev_t	pf_dev;
 	ino_t	pf_ino;
 };
-#endif
 
 /* Avoid pulling in all the include files for no need */
 struct termios;
@@ -120,12 +118,10 @@ const char *pw_tempname(void);
 int	pw_tmp(int _mfd);
 #endif
 
-#ifdef _SYS_PARAM_H_
 struct pidfh *pidfile_open(const char *path, mode_t mode, pid_t *pidptr);
 int pidfile_write(struct pidfh *pfh);
 int pidfile_close(struct pidfh *pfh);
 int pidfile_remove(struct pidfh *pfh);
-#endif
 
 __END_DECLS
 

headers/compatibility/bsd/sys/param.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_SYS_PARAM_H_
@@ -27,4 +27,8 @@
 #	define howmany(x, y) (((x) + ((y) - 1)) / (y))
 #endif
 
+#ifndef MAXLOGNAME
+#	define MAXLOGNAME 32
+#endif
+
 #endif	/* _BSD_SYS_PARAM_H_ */

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
 }

src/libs/bsd/Jamfile

@@ -14,5 +14,6 @@ SharedLibrary libbsd.so :
 	signal.c
 	stringlist.c
 	unvis.c
+	usershell.c
 	vis.c
 ;

src/libs/bsd/usershell.c

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2008, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Axel Dörfler, axeld@pinc-software.de
+ */
+
+
+#include <unistd.h>
+
+
+static int sShellIndex;
+
+
+char *
+getusershell(void)
+{
+	if (sShellIndex++ == 0)
+		return "/bin/sh";
+
+	return NULL;
+}
+
+
+void
+endusershell(void)
+{
+	sShellIndex = 0;
+}
+
+
+void
+setusershell(void)
+{
+	sShellIndex = 0;
+}
+
+