9os

commit 0765cb8f789b030e8a14f03f3d28b65db494438b
parent 453d223557956eceffe11d44d214fcd7b90051a9
Author: Dimitris Papastamos <dimitris.papastamos@arm.com>
Date:   Mon, 18 Feb 2019 15:17:55 +0000

Add p9 dir handling code

This was missed in an earlier patch.

Change-Id: I74f7a183f4cd1a6b4498e06ac649eab589cbe302
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>

Diffstat:
A
src/lib9p/p9closedir.c
 | 
8
++++++++
A
src/lib9p/p9opendir.c
 | 
20
++++++++++++++++++++
A
src/lib9p/p9readdir.c
 | 
21
+++++++++++++++++++++

3 files changed, 49 insertions(+), 0 deletions(-)
diff --git a/src/lib9p/p9closedir.c b/src/lib9p/p9closedir.c
@@ -0,0 +1,8 @@
+#include <rcode/9p.h>
+#include <rcode/rcode.h>
+
+int
+p9closedir(DIR *dir)
+{
+	return close(dir->fd);
+}
diff --git a/src/lib9p/p9opendir.c b/src/lib9p/p9opendir.c
@@ -0,0 +1,20 @@
+#include <errno.h>
+
+#include <rcode/9p.h>
+#include <rcode/rcode.h>
+
+DIR *
+p9opendir(DIR *dir, const char *name)
+{
+	int fd;
+
+	if ((fd = open(name, O_READ)) < 0) {
+		errno = ENOENT;
+		return NULL;
+	}
+	dir->fd = fd;
+
+	/* TODO: check that it is actually a directory */
+
+	return dir;
+}
diff --git a/src/lib9p/p9readdir.c b/src/lib9p/p9readdir.c
@@ -0,0 +1,21 @@
+#include <string.h>
+
+#include <rcode/9p.h>
+#include <rcode/rcode.h>
+
+struct dirent *
+p9readdir(DIR *dir)
+{
+	int n;
+	Dir dentry;
+
+	if ((n = read(dir->fd, dir->buf, sizeof(dir->buf))) < 0)
+		return NULL;
+
+	if (p9todir(&dentry, dir->buf, n) < 0)
+		return NULL;
+
+	strcpy(dir->ent.d_name, dentry.name);
+
+	return &dir->ent;
+}