1 files changed, 104 insertions, 0 deletions
diff --git a/lib/libufs/libufs.h b/lib/libufs/libufs.h
new file mode 100644
index 000000000000..0a5a67db4fa9
--- /dev/null
+++ b/lib/libufs/libufs.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2002 Juli Mallett.  All rights reserved.
+ *
+ * This software was written by Juli Mallett <jmallett@FreeBSD.org> for the
+ * FreeBSD project.  Redistribution and use in source and binary forms, with
+ * or without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistribution of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistribution in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * libufs macros (internal, non-exported).
+ */
+#ifdef	_LIBUFS
+#ifdef	_LIBUFS_DEBUGGING
+/*
+ * Trace steps through libufs, to be used at entry and erroneous return.
+ */
+#define	DEBUG(str)						\
+do {								\
+	fprintf(stderr, "libufs in %s", __func__);		\
+	if (str != NULL)					\
+		fprintf(stderr, ": %s", str);			\
+	if (errno)						\
+		fprintf(stderr, ": %s", strerror(errno));	\
+	fprintf(stderr, "\n");					\
+} while (0)
+#else	/* _LIBUFS_DEBUGGING */
+#define	DEBUG(str)	/* nil */
+#endif	/* _LIBUFS_DEBUGGING */
+#endif	/* _LIBUFS */
+
+/*
+ * libufs structures.
+ */
+
+/*
+ * userland ufs disk.
+ */
+struct uufsd {
+	const char *d_name;	/* disk name */
+	int d_ufs;		/* decimal UFS version */
+	int d_fd;		/* raw device file descriptor */
+	long d_bsize;		/* device bsize */
+	ufs2_daddr_t d_sblock;	/* superblock location */
+	caddr_t d_inoblock;	/* inode block */
+	ino_t d_inomin;		/* low inode */
+	ino_t d_inomax;		/* high inode */
+	union {
+		struct fs d_fs;	/* filesystem information */
+		char d_sb[MAXBSIZE];
+				/* superblock as buffer */
+	} d_sbunion;
+#define	d_fs	d_sbunion.d_fs
+#define	d_sb	d_sbunion.d_sb
+};
+
+/*
+ * libufs prototypes.
+ */
+
+/*
+ * block.c
+ */
+ssize_t bread(struct uufsd *, ufs2_daddr_t, void *, size_t);
+ssize_t bwrite(struct uufsd *, ufs2_daddr_t, const void *, size_t);
+
+/*
+ * inode.c
+ */
+int getino(struct uufsd *, void **, ino_t, int *);
+
+/*
+ * sblock.c
+ */
+int sbread(struct uufsd *);
+int sbwrite(struct uufsd *, int);
+
+/*
+ * type.c
+ */
+struct uufsd *ufs_disk_ctor(const char *);
+int ufs_disk_close(struct uufsd *);
+void ufs_disk_dtor(struct uufsd **);
+int ufs_disk_fillout(struct uufsd *, const char *);