From d7691de14af1a30ea1173511b08d1ad7b8512b72 Mon Sep 17 00:00:00 2001
From: Razvan Deaconescu <razvan.deaconescu@cs.pub.ro>
Date: Sat, 21 May 2011 12:41:13 +0300
Subject: [PATCH] raw: Add sw_close "syscall".

sw_close is required by the internal management functions: remove socket
element when sw_close is called.
---
 src/raw/swift_raw.c | 22 ++++++++++++++++++++++
 src/raw/swift_raw.h |  6 ++++++
 2 files changed, 28 insertions(+)

diff --git a/src/raw/swift_raw.c b/src/raw/swift_raw.c
index 8c5b432..3809986 100644
--- a/src/raw/swift_raw.c
+++ b/src/raw/swift_raw.c
@@ -355,3 +355,25 @@ list_elem_err:
 list_unlink_err:
 	return -1;
 }
+
+/*
+ * Close file descriptor for socket FD.
+ * Returns 0 on success, -1 for errors.
+ */
+int sw_close (int __fd)
+{
+	struct sock_list *list;
+
+	/* Remove socket from socket management structure. */
+	list = list_unlink_socket(__fd);
+	if (list == NULL) {
+		errno = EBADF;
+		goto list_unlink_err;
+	}
+
+	/* Call classical interface of close(2). */
+	return close(__fd);
+
+list_unlink_err:
+	return -1;
+}
diff --git a/src/raw/swift_raw.h b/src/raw/swift_raw.h
index 5724212..fd83ac2 100644
--- a/src/raw/swift_raw.h
+++ b/src/raw/swift_raw.h
@@ -116,6 +116,12 @@ extern int sw_setsockopt (int __fd, int __level, int __optname,
  */
 extern int sw_shutdown (int __fd, int __how) __THROW;
 
+/*
+ * Close file descriptor for socket FD.
+ * Returns 0 on success, -1 for errors.
+ */
+extern int sw_close (int __fd);
+
 #ifdef __cplusplus
 }
 #endif
-- 
2.20.1