From 464df1d5e5ab1322e2dd0a7796939fff1aeefa9a Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 17:49:25 +0200
Subject: Adding upstream version 1.47.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 lib/ext2fs/read_bb_file.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 lib/ext2fs/read_bb_file.c

(limited to 'lib/ext2fs/read_bb_file.c')

diff --git a/lib/ext2fs/read_bb_file.c b/lib/ext2fs/read_bb_file.c
new file mode 100644
index 0000000..a6d3beb
--- /dev/null
+++ b/lib/ext2fs/read_bb_file.c
@@ -0,0 +1,109 @@
+/*
+ * read_bb_file.c --- read a list of bad blocks from a FILE *
+ *
+ * Copyright (C) 1994, 1995, 2000 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include <stdio.h>
+#include <string.h>
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <fcntl.h>
+#include <time.h>
+#if HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+#if HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#include "ext2_fs.h"
+#include "ext2fs.h"
+
+/*
+ * Reads a list of bad blocks from  a FILE *
+ */
+errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
+			       ext2_badblocks_list *bb_list,
+			       void *priv_data,
+			       void (*invalid)(ext2_filsys fs,
+					       blk_t blk,
+					       char *badstr,
+					       void *priv_data))
+{
+	errcode_t	retval;
+	unsigned long long blockno;
+	int		count;
+	char		buf[128];
+
+	if (fs)
+		EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
+
+	if (!*bb_list) {
+		retval = ext2fs_badblocks_list_create(bb_list, 10);
+		if (retval)
+			return retval;
+	}
+
+	while (!feof (f)) {
+		if (fgets(buf, sizeof(buf), f) == NULL)
+			break;
+		count = sscanf(buf, "%llu", &blockno);
+		if (count <= 0)
+			continue;
+		/* Badblocks isn't going to be updated for 64bit */
+		if (blockno >> 32)
+			return EOVERFLOW;
+		if (fs &&
+		    ((blockno < fs->super->s_first_data_block) ||
+		     (blockno >= ext2fs_blocks_count(fs->super)))) {
+			if (invalid)
+				(invalid)(fs, (blk64_t) blockno, buf, priv_data);
+			continue;
+		}
+		retval = ext2fs_badblocks_list_add(*bb_list, (blk64_t) blockno);
+		if (retval)
+			return retval;
+	}
+	return 0;
+}
+
+struct compat_struct {
+	void (*invalid)(ext2_filsys, blk_t);
+};
+
+static void call_compat_invalid(ext2_filsys fs, blk_t blk,
+				char *badstr EXT2FS_ATTR((unused)),
+				void *priv_data)
+{
+	struct compat_struct *st;
+
+	st = (struct compat_struct *) priv_data;
+	if (st->invalid)
+		(st->invalid)(fs, blk);
+}
+
+
+/*
+ * Reads a list of bad blocks from  a FILE *
+ */
+errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
+			      ext2_badblocks_list *bb_list,
+			      void (*invalid)(ext2_filsys fs, blk_t blk))
+{
+	struct compat_struct st;
+
+	st.invalid = invalid;
+
+	return ext2fs_read_bb_FILE2(fs, f, bb_list, &st,
+				    call_compat_invalid);
+}
+
+
-- 
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