1 files changed, 0 insertions, 237 deletions
diff --git a/ubi-utils/src/libubimirror.c b/ubi-utils/src/libubimirror.c
deleted file mode 100644
index d06770e..0000000
--- a/ubi-utils/src/libubimirror.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * Copyright (c) International Business Machines Corp., 2006
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <memory.h>
-#include <limits.h>
-#include <fcntl.h>
-
-#include <libubi.h>
-#include "ubimirror.h"
-
-#define COMPARE_BUF_SIZE    (128 * 1024)
-
-#define DEFAULT_DEV_PATTERN    "/dev/ubi%d"
-#define DEFAULT_VOL_PATTERN    "/dev/ubi%d_%d"
-
-#define EBUF(fmt...) do {			\
-	snprintf(err_buf, err_buf_size, fmt);	\
-} while (0)
-
-enum {
-	compare_error = -1,
-	seek_error = -2,
-	write_error = -3,
-	read_error = -4,
-	update_error = -5,
-	ubi_error = -6,
-	open_error = -7,
-	close_error = -8,
-	compare_equal = 0,
-	compare_different = 1
-};
-
-/*
- * Read len number of bytes from fd.
- * Return 0 on EOF, -1 on error.
- */
-static ssize_t fill_buffer(int fd, unsigned char *buf, ssize_t len)
-{
-	ssize_t got, have = 0;
-
-	do {
-		got = read(fd, buf + have, len - have);
-		if (got == -1 && errno != EINTR)
-			return -1;
-		have += got;
-	} while (got > 0 && have < len);
-	return have;
-}
-
-/*
- * Write len number of bytes to fd.
- * Return bytes written (>= 0), -1 on error.
- */
-static ssize_t flush_buffer(int fd, unsigned char *buf, ssize_t len)
-{
-	ssize_t done, have = 0;
-
-	do {
-		done = write(fd, buf + have, len - have);
-		if (done == -1 && errno != EINTR)
-			return -1;
-		have += done;
-	} while (done > 0 && have < len);
-	return have;
-}
-
-/*
- *  Compare two files.  Return 0, 1, or -1, depending on whether the
- *  files are equal, different, or an error occured.
- *  Return compare-different when target volume can not be read. Might be
- *  an interrupted volume update and then the target device returns -EIO but
- *  can be updated.
- *
- *  fd_a is source
- *  fd_b is destination
- */
-static int compare_files(int fd_a, int fd_b)
-{
-	unsigned char buf_a[COMPARE_BUF_SIZE], buf_b[COMPARE_BUF_SIZE];
-	ssize_t len_a, len_b;
-	int rc;
-
-	for (;;) {
-		len_a = fill_buffer(fd_a, buf_a, sizeof(buf_a));
-		if (len_a == -1) {
-			rc = compare_error;
-			break;
-		}
-		len_b = fill_buffer(fd_b, buf_b, sizeof(buf_b));
-		if (len_b == -1) {
-			rc = compare_different;
-			break;
-		}
-		if (len_a != len_b) {
-			rc = compare_different;
-			break;
-		}
-		if (len_a == 0) {	/* Size on both files equal and EOF */
-			rc = compare_equal;
-			break;
-		}
-		if (memcmp(buf_a, buf_b, len_a) != 0 ) {
-			rc = compare_different;
-			break;
-		}
-	}
-	/* Position both files at the beginning */
-	if (lseek(fd_a, 0, SEEK_SET) == -1 ||
-	   lseek(fd_b, 0, SEEK_SET) == -1)
-		rc = seek_error;
-	return rc;
-}
-
-int vol_get_used_bytes(int vol_fd, unsigned long long *bytes)
-{
-	off_t res;
-
-	res = lseek(vol_fd, 0, SEEK_END);
-	if (res == (off_t)-1)
-		return -1;
-	*bytes = (unsigned long long) res;
-	res = lseek(vol_fd, 0, SEEK_SET);
-	return res == (off_t)-1 ? -1 : 0;
-}
-
-static int copy_files(libubi_t ulib, int fd_in, int fd_out)
-{
-	unsigned char buf_a[COMPARE_BUF_SIZE];
-	ssize_t len_a, len_b;
-	unsigned long long update_size, copied;
-
-	if (vol_get_used_bytes(fd_in, &update_size) == -1 ||
-	    ubi_update_start(ulib, fd_out, update_size) == -1)
-		return update_error;
-	for (copied = 0; copied < update_size; copied += len_b ) {
-		len_a = fill_buffer(fd_in, buf_a, sizeof(buf_a));
-		if (len_a == -1)
-			return read_error;
-		if (len_a == 0)		/* Reach EOF */
-			return 0;
-		len_b = flush_buffer(fd_out, buf_a, len_a);
-		if (len_b != len_a)
-			return write_error;
-	}
-	return 0;
-}
-
-int ubimirror(uint32_t devno, int seqnum, uint32_t *ids, ssize_t ids_size,
-		char *err_buf, size_t err_buf_size)
-{
-	int rc = 0;
-	uint32_t src_id;
-	char path[PATH_MAX];
-	libubi_t ulib;
-	int fd_in = -1, i = 0, fd_out = -1;
-
-	if (ids_size == 0)
-		return 0;
-	else {
-		if ((seqnum < 0) || (seqnum > (ids_size - 1))) {
-			EBUF("volume id %d out of range", seqnum);
-			return EUBIMIRROR_NO_SRC;
-		}
-		src_id = ids[seqnum];
-	}
-
-	ulib = libubi_open();
-	if (ulib == NULL)
-		return ubi_error;
-
-	snprintf(path, PATH_MAX, DEFAULT_VOL_PATTERN, devno, src_id);
-
-	fd_in = open(path, O_RDONLY);
-	if (fd_in == -1) {
-		EBUF("open error source volume %d", ids[i]);
-		rc = open_error;
-		goto err;
-	}
-
-	for (i = 0; i < ids_size; i++) {
-		if (ids[i] == src_id)		/* skip self-mirror */
-			continue;
-
-		snprintf(path, PATH_MAX, DEFAULT_VOL_PATTERN, devno, ids[i]);
-
-		fd_out = open(path, O_RDWR);
-		if (fd_out < 0){
-			EBUF("open error destination volume %d", ids[i]);
-			rc = open_error;
-			goto err;
-		}
-		rc = compare_files(fd_in, fd_out);
-		if (rc < 0) {
-			EBUF("compare error volume %d and %d", src_id, ids[i]);
-			goto err;
-		} else if (rc == compare_different) {
-			rc = copy_files(ulib, fd_in, fd_out);
-			if (rc != 0) {
-				EBUF("mirror error volume %d to %d", src_id,
-						ids[i]);
-				goto err;
-			}
-		}
-		if ((rc = close(fd_out)) == -1) {
-			EBUF("close error volume %d", ids[i]);
-			rc = close_error;
-			goto err;
-		} else
-			fd_out = -1;
-	}
-err:
-	if (fd_out != -1)
-		close(fd_out);
-	if (fd_in != -1)
-		close(fd_in);
-	if (ulib != NULL)
-		libubi_close(ulib);
-	return rc;
-}