From f8d76107147f6371649c7ab2f8dd7a0cf8146c64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Wed, 10 Jul 2002 21:46:34 +0000
Subject: [PATCH] Added the syscalls for sys_read_dir(), and sys_rewind_dir().
 sys_read_dir() now has a parameter for the maximum number of dirents that are
 handled by the upper layer - which is currently 1. Added a comment in fd.h to
 ease the location of the sys|user prototypes of the corresponding functions
 in fd.c.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@58 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 headers/os/kernel/dirent.h         | 4 +---
 headers/private/kernel/fd.h        | 2 ++
 headers/private/kernel/ksyscalls.h | 5 ++++-
 headers/private/kernel/vfs.h       | 4 ++--
 4 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/headers/os/kernel/dirent.h b/headers/os/kernel/dirent.h
index 96ff238a6f..80d60a1049 100644
--- a/headers/os/kernel/dirent.h
+++ b/headers/os/kernel/dirent.h
@@ -21,11 +21,9 @@ typedef struct dirent {
 	char			d_name[1];
 } dirent_t;
 
-// ToDo: this structure is still incompatible with BeOS
 typedef struct {
 	int				fd;
-	struct dirent  *ent;
-	struct dirent   me;
+	struct dirent	ent;
 } DIR;
 
 #ifndef MAXNAMLEN
diff --git a/headers/private/kernel/fd.h b/headers/private/kernel/fd.h
index db847d8fc2..d5f7f7991e 100644
--- a/headers/private/kernel/fd.h
+++ b/headers/private/kernel/fd.h
@@ -73,6 +73,8 @@ void put_fd(struct file_descriptor *);
 void free_fd(struct file_descriptor *);
 static struct io_context *get_current_io_context(bool kernel);
 
+/* The prototypes of the (sys|user)_ functions are currently defined in vfs.h */
+
 
 /* Inlines */
 
diff --git a/headers/private/kernel/ksyscalls.h b/headers/private/kernel/ksyscalls.h
index 7f684ba1f8..fa8190ddbd 100755
--- a/headers/private/kernel/ksyscalls.h
+++ b/headers/private/kernel/ksyscalls.h
@@ -2,6 +2,7 @@
 ** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
 ** Distributed under the terms of the NewOS License.
 */
+
 #include <types.h>
 #ifndef _KERNEL_SYSCALLS_H
 #define _KERNEL_SYSCALLS_H
@@ -81,7 +82,9 @@ enum {
 	SYSCALL_SYSCTL,
 	SYSCALL_SOCKET,
 	SYSCALL_GETDTABLESIZE,
-	SYSCALL_FSTAT
+	SYSCALL_FSTAT,
+	SYSCALL_READ_DIR,
+	SYSCALL_REWIND_DIR,
 };
 
 int syscall_dispatcher(unsigned long call_num, void *arg_buffer, uint64 *call_ret);
diff --git a/headers/private/kernel/vfs.h b/headers/private/kernel/vfs.h
index 5a00a97345..34b363bba4 100755
--- a/headers/private/kernel/vfs.h
+++ b/headers/private/kernel/vfs.h
@@ -147,7 +147,7 @@ int user_dup2(int ofd, int nfd);
 extern ssize_t sys_read(int fd, void *buf, off_t pos, size_t len);
 extern ssize_t sys_write(int fd, const void *buf, off_t pos, size_t len);
 extern int sys_ioctl(int fd, ulong cmd, void *data, size_t length);
-extern ssize_t sys_read_dir(int fd, struct dirent *buffer, size_t bufferSize);
+extern ssize_t sys_read_dir(int fd, struct dirent *buffer, size_t bufferSize, uint32 maxCount);
 extern status_t sys_rewind_dir(int fd);
 extern int sys_rstat(const char *path, struct stat *stat);
 extern int sys_close(int fd);
@@ -157,7 +157,7 @@ extern int sys_close(int fd);
 extern ssize_t user_read(int fd, void *buf, off_t pos, size_t len);
 extern ssize_t user_write(int fd, const void *buf, off_t pos, size_t len);
 extern int user_ioctl(int fd, ulong cmd, void *data, size_t length);
-extern ssize_t user_read_dir(int fd, struct dirent *buffer, size_t bufferSize);
+extern ssize_t user_read_dir(int fd, struct dirent *buffer, size_t bufferSize, uint32 maxCount);
 extern status_t user_rewind_dir(int fd);
 extern int user_fstat(int, struct stat *);
 extern int user_close(int fd);