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-rw-r--r--lib/e2p/fgetproject.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/lib/e2p/fgetproject.c b/lib/e2p/fgetproject.c
new file mode 100644
index 0000000..12320b5
--- /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
+}