From ccf028f2e766e1364bbebff36f8274d72749de43 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sat, 5 Mar 2016 11:05:18 -0500
Subject: [PATCH] libe2p: add missing f[gs]etproject.c files

Li Xi's patch was missing the sources for fgetproject.c and
fsetproject.c.  I've created replacement files which will service the
purpose.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
 lib/e2p/fgetproject.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++
 lib/e2p/fsetproject.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++
 lib/e2p/project.h     | 27 ++++++++++++++++++++
 3 files changed, 159 insertions(+)
 create mode 100644 lib/e2p/fgetproject.c
 create mode 100644 lib/e2p/fsetproject.c
 create mode 100644 lib/e2p/project.h

diff --git a/lib/e2p/fgetproject.c b/lib/e2p/fgetproject.c
new file mode 100644
index 00000000..12320b5b
--- /dev/null
+++ b/lib/e2p/fgetproject.c
@@ -0,0 +1,63 @@
+/*
+ * fgetproject.c --- get project id
+ *
+ * Copyright (C) 1999  Theodore Ts'o <tytso@mit.edu>
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#ifndef _LARGEFILE_SOURCE
+#define _LARGEFILE_SOURCE
+#endif
+#ifndef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE
+#endif
+
+#include "config.h"
+#if HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#if HAVE_EXT2_IOCTLS
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include "project.h"
+#endif
+
+#include "e2p.h"
+
+#ifdef O_LARGEFILE
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
+#else
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
+#endif
+
+int fgetproject(const char *name, unsigned long *project)
+{
+#ifndef FS_IOC_FSGETXATTR
+	errno = EOPNOTSUPP;
+	return -1;
+#else
+	int fd, r, save_errno = 0;
+	struct fsxattr fsx;
+
+	fd = open (name, OPEN_FLAGS);
+	if (fd == -1)
+		return -1;
+	r = ioctl (fd, FS_IOC_FSGETXATTR, &fsx);
+	if (r == 0)
+		*project = fsx.fsx_projid;
+	save_errno = errno;
+	close (fd);
+	if (save_errno)
+		errno = save_errno;
+	return r;
+#endif
+}
diff --git a/lib/e2p/fsetproject.c b/lib/e2p/fsetproject.c
new file mode 100644
index 00000000..5df70904
--- /dev/null
+++ b/lib/e2p/fsetproject.c
@@ -0,0 +1,69 @@
+/*
+ * fgetproject.c --- get project id
+ *
+ * Copyright (C) 1999  Theodore Ts'o <tytso@mit.edu>
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#ifndef _LARGEFILE_SOURCE
+#define _LARGEFILE_SOURCE
+#endif
+#ifndef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE
+#endif
+
+#include "config.h"
+#if HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#if HAVE_EXT2_IOCTLS
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include "project.h"
+#endif
+
+#include "e2p.h"
+
+#ifdef O_LARGEFILE
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK|O_LARGEFILE)
+#else
+#define OPEN_FLAGS (O_RDONLY|O_NONBLOCK)
+#endif
+
+int fsetproject(const char *name, unsigned long project)
+{
+#ifndef FS_IOC_FSGETXATTR
+	errno = EOPNOTSUPP;
+	return -1;
+#else
+	int fd, r, save_errno = 0;
+	struct fsxattr fsx;
+
+	fd = open (name, OPEN_FLAGS);
+	if (fd == -1)
+		return -1;
+	r = ioctl (fd, FS_IOC_FSGETXATTR, &fsx);
+	if (r == -1) {
+		save_errno = errno;
+		goto errout;
+	}
+	fsx.fsx_projid = project;
+	r = ioctl (fd, FS_IOC_FSSETXATTR, &fsx);
+	if (r == -1)
+		save_errno = errno;
+errout:
+	close (fd);
+	if (save_errno)
+		errno = save_errno;
+	return r;
+#endif
+}
diff --git a/lib/e2p/project.h b/lib/e2p/project.h
new file mode 100644
index 00000000..253425a6
--- /dev/null
+++ b/lib/e2p/project.h
@@ -0,0 +1,27 @@
+/*
+ * project.h
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#include <ext2fs/ext2_fs.h>
+
+#if defined(__linux__) && !defined(FS_IOC_FSGETXATTR)
+#define FS_IOC_FSGETXATTR		_IOR('X', 31, struct fsxattr)
+#define FS_IOC_FSSETXATTR		_IOW('X', 32, struct fsxattr)
+
+/*
+ * Structure for FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR.
+ */
+struct fsxattr {
+	__u32		fsx_xflags;	/* xflags field value (get/set) */
+	__u32		fsx_extsize;	/* extsize field value (get/set)*/
+	__u32		fsx_nextents;	/* nextents field value (get)	*/
+	__u32		fsx_projid;	/* project identifier (get/set) */
+	unsigned char	fsx_pad[12];
+};
+#endif
+
-- 
2.11.0