ubifs-utils: Replace ubifs related source code with linux kernel implementation

Replace ubifs related source code with the implementation of linux kernel.
It makes userspace implementation be same with linux kernel, then
fsck.ubifs can resuse the code.

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 0 insertions, 123 deletions

diff --git a/ubifs-utils/common/super.c b/ubifs-utils/common/super.c
deleted file mode 100644
index eee0197..0000000
--- a/ubifs-utils/common/super.c
+++ /dev/null
@@ -1,123 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include "defs.h"
-
-/**
- * open_ubi - open the libubi.
- * @c: the UBIFS file-system description object
- * @node: name of the UBI volume character device to fetch information about
- *
- * This function opens libubi, and initialize device & volume information
- * according to @node. Returns %0 in case of success and %-1 in case of failure.
- */
-int open_ubi(struct ubifs_info *c, const char *node)
-{
-	struct stat st;
-
-	if (stat(node, &st) || !S_ISCHR(st.st_mode))
-		return -1;
-
-	c->libubi = libubi_open();
-	if (!c->libubi)
-		return -1;
-	if (ubi_get_vol_info(c->libubi, node, &c->vi))
-		goto out_err;
-	if (ubi_get_dev_info1(c->libubi, c->vi.dev_num, &c->di))
-		goto out_err;
-
-	return 0;
-
-out_err:
-	close_ubi(c);
-	return -1;
-}
-
-void close_ubi(struct ubifs_info *c)
-{
-	if (c->libubi) {
-		libubi_close(c->libubi);
-		c->libubi = NULL;
-	}
-}
-
-/**
- * open_target - open the output target.
- * @c: the UBIFS file-system description object
- *
- * Open the output target. The target can be an UBI volume
- * or a file.
- *
- * Returns %0 in case of success and %-1 in case of failure.
- */
-int open_target(struct ubifs_info *c)
-{
-	if (c->libubi) {
-		c->dev_fd = open(c->dev_name, O_RDWR | O_EXCL);
-
-		if (c->dev_fd == -1)
-			return sys_errmsg("cannot open the UBI volume '%s'",
-					   c->dev_name);
-		if (ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 1)) {
-			close(c->dev_fd);
-			return sys_errmsg("ubi_set_property(set direct_write) failed");
-		}
-	} else {
-		c->dev_fd = open(c->dev_name, O_CREAT | O_RDWR | O_TRUNC,
-			      S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
-		if (c->dev_fd == -1)
-			return sys_errmsg("cannot create output file '%s'",
-					   c->dev_name);
-	}
-	return 0;
-}
-
-
-/**
- * close_target - close the output target.
- * @c: the UBIFS file-system description object
- *
- * Close the output target. If the target was an UBI
- * volume, also close libubi.
- *
- * Returns %0 in case of success and %-1 in case of failure.
- */
-int close_target(struct ubifs_info *c)
-{
-	if (c->dev_fd >= 0) {
-		if (c->libubi && ubi_set_property(c->dev_fd, UBI_VOL_PROP_DIRECT_WRITE, 0))
-			return sys_errmsg("ubi_set_property(clear direct_write) failed");
-		if (close(c->dev_fd) == -1)
-			return sys_errmsg("cannot close the target '%s'", c->dev_name);
-	}
-	return 0;
-}
-
-/**
- * check_volume_empty - check if the UBI volume is empty.
- * @c: the UBIFS file-system description object
- *
- * This function checks if the UBI volume is empty by looking if its LEBs are
- * mapped or not.
- *
- * Returns %0 in case of success, %1 is the volume is not empty,
- * and a negative error code in case of failure.
- */
-int check_volume_empty(struct ubifs_info *c)
-{
-	int lnum, err;
-
-	for (lnum = 0; lnum < c->vi.rsvd_lebs; lnum++) {
-		err = ubi_is_mapped(c->dev_fd, lnum);
-		if (err < 0)
-			return err;
-		if (err == 1)
-			return 1;
-	}
-	return 0;
-}