Add the concept of a per-disk error string, and a function which prints it

along with the errno, if one is set.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/libufs/libufs.h b/lib/libufs/libufs.h
index 569d8a0..6f7dc7e 100644
--- a/lib/libufs/libufs.h
+++ b/lib/libufs/libufs.h
@@ -73,6 +73,7 @@ struct uufsd {
 		char d_sb[MAXBSIZE];
 				/* superblock as buffer */
 	} d_sbunion;
+	const char *d_error;	/* human readable disk error */
 #define	d_fs	d_sbunion.d_fs
 #define	d_sb	d_sbunion.d_sb
 };
@@ -90,6 +91,11 @@ ssize_t bread(struct uufsd *, ufs2_daddr_t, void *, size_t);
 ssize_t bwrite(struct uufsd *, ufs2_daddr_t, const void *, size_t);
 
 /*
+ * error.c
+ */
+void libufs_printerror(struct uufsd *);
+
+/*
  * inode.c
  */
 int getino(struct uufsd *, void **, ino_t, int *);