import the very fat e2fsck/fsck applets

e2fsprogs/e2fsck/e2fsck.c

@@ -0,0 +1,202 @@
+/*
+ * e2fsck.c - a consistency checker for the new extended file system.
+ * 
+ * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#include <errno.h>
+
+#include "e2fsck.h"
+#include "problem.h"
+
+/*
+ * This function allocates an e2fsck context 
+ */
+errcode_t e2fsck_allocate_context(e2fsck_t *ret)
+{
+	e2fsck_t	context;
+	errcode_t	retval;
+
+	retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), &context);
+	if (retval)
+		return retval;
+	
+	memset(context, 0, sizeof(struct e2fsck_struct));
+
+	context->process_inode_size = 256;
+	context->ext_attr_ver = 2;
+
+	*ret = context;
+	return 0;
+}
+
+/*
+ * This function resets an e2fsck context; it is called when e2fsck
+ * needs to be restarted.
+ */
+errcode_t e2fsck_reset_context(e2fsck_t ctx)
+{
+	ctx->flags = 0;
+	ctx->lost_and_found = 0;
+	ctx->bad_lost_and_found = 0;
+	if (ctx->inode_used_map) {
+		ext2fs_free_inode_bitmap(ctx->inode_used_map);
+		ctx->inode_used_map = 0;
+	}
+	if (ctx->inode_dir_map) {
+		ext2fs_free_inode_bitmap(ctx->inode_dir_map);
+		ctx->inode_dir_map = 0;
+	}
+	if (ctx->inode_reg_map) {
+		ext2fs_free_inode_bitmap(ctx->inode_reg_map);
+		ctx->inode_reg_map = 0;
+	}
+	if (ctx->block_found_map) {
+		ext2fs_free_block_bitmap(ctx->block_found_map);
+		ctx->block_found_map = 0;
+	}
+	if (ctx->inode_link_info) {
+		ext2fs_free_icount(ctx->inode_link_info);
+		ctx->inode_link_info = 0;
+	}
+	if (ctx->journal_io) {
+		if (ctx->fs && ctx->fs->io != ctx->journal_io)
+			io_channel_close(ctx->journal_io);
+		ctx->journal_io = 0;
+	}
+	if (ctx->fs && ctx->fs->dblist) {
+		ext2fs_free_dblist(ctx->fs->dblist);
+		ctx->fs->dblist = 0;
+	}
+	e2fsck_free_dir_info(ctx);
+#ifdef ENABLE_HTREE
+	e2fsck_free_dx_dir_info(ctx);
+#endif
+	if (ctx->refcount) {
+		ea_refcount_free(ctx->refcount);
+		ctx->refcount = 0;
+	}
+	if (ctx->refcount_extra) {
+		ea_refcount_free(ctx->refcount_extra);
+		ctx->refcount_extra = 0;
+	}
+	if (ctx->block_dup_map) {
+		ext2fs_free_block_bitmap(ctx->block_dup_map);
+		ctx->block_dup_map = 0;
+	}
+	if (ctx->block_ea_map) {
+		ext2fs_free_block_bitmap(ctx->block_ea_map);
+		ctx->block_ea_map = 0;
+	}
+	if (ctx->inode_bb_map) {
+		ext2fs_free_inode_bitmap(ctx->inode_bb_map);
+		ctx->inode_bb_map = 0;
+	}
+	if (ctx->inode_bad_map) {
+		ext2fs_free_inode_bitmap(ctx->inode_bad_map);
+		ctx->inode_bad_map = 0;
+	}
+	if (ctx->inode_imagic_map) {
+		ext2fs_free_inode_bitmap(ctx->inode_imagic_map);
+		ctx->inode_imagic_map = 0;
+	}
+	if (ctx->dirs_to_hash) {
+		ext2fs_u32_list_free(ctx->dirs_to_hash);
+		ctx->dirs_to_hash = 0;
+	}
+
+	/*
+	 * Clear the array of invalid meta-data flags
+	 */
+	if (ctx->invalid_inode_bitmap_flag) {
+		ext2fs_free_mem(&ctx->invalid_inode_bitmap_flag);
+		ctx->invalid_inode_bitmap_flag = 0;
+	}
+	if (ctx->invalid_block_bitmap_flag) {
+		ext2fs_free_mem(&ctx->invalid_block_bitmap_flag);
+		ctx->invalid_block_bitmap_flag = 0;
+	}
+	if (ctx->invalid_inode_table_flag) {
+		ext2fs_free_mem(&ctx->invalid_inode_table_flag);
+		ctx->invalid_inode_table_flag = 0;
+	}
+
+	/* Clear statistic counters */
+	ctx->fs_directory_count = 0;
+	ctx->fs_regular_count = 0;
+	ctx->fs_blockdev_count = 0;
+	ctx->fs_chardev_count = 0;
+	ctx->fs_links_count = 0;
+	ctx->fs_symlinks_count = 0;
+	ctx->fs_fast_symlinks_count = 0;
+	ctx->fs_fifo_count = 0;
+	ctx->fs_total_count = 0;
+	ctx->fs_badblocks_count = 0;
+	ctx->fs_sockets_count = 0;
+	ctx->fs_ind_count = 0;
+	ctx->fs_dind_count = 0;
+	ctx->fs_tind_count = 0;
+	ctx->fs_fragmented = 0;
+	ctx->large_files = 0;
+
+	/* Reset the superblock to the user's requested value */
+	ctx->superblock = ctx->use_superblock;
+	
+	return 0;
+}
+
+void e2fsck_free_context(e2fsck_t ctx)
+{
+	if (!ctx)
+		return;
+	
+	e2fsck_reset_context(ctx);
+	if (ctx->blkid)
+		blkid_put_cache(ctx->blkid);
+			
+	ext2fs_free_mem(&ctx);
+}
+
+/*
+ * This function runs through the e2fsck passes and calls them all,
+ * returning restart, abort, or cancel as necessary...
+ */
+typedef void (*pass_t)(e2fsck_t ctx);
+
+pass_t e2fsck_passes[] = {
+	e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4,
+	e2fsck_pass5, 0 };
+
+#define E2F_FLAG_RUN_RETURN	(E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART)
+
+int e2fsck_run(e2fsck_t ctx)
+{
+	int	i;
+	pass_t	e2fsck_pass;
+
+#ifdef HAVE_SETJMP_H
+	if (setjmp(ctx->abort_loc)) {
+		ctx->flags &= ~E2F_FLAG_SETJMP_OK;
+		return (ctx->flags & E2F_FLAG_RUN_RETURN);
+	}
+	ctx->flags |= E2F_FLAG_SETJMP_OK;
+#endif
+		
+	for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) {
+		if (ctx->flags & E2F_FLAG_RUN_RETURN)
+			break;
+		e2fsck_pass(ctx);
+		if (ctx->progress)
+			(void) (ctx->progress)(ctx, 0, 0, 0);
+	}
+	ctx->flags &= ~E2F_FLAG_SETJMP_OK;
+	
+	if (ctx->flags & E2F_FLAG_RUN_RETURN)
+		return (ctx->flags & E2F_FLAG_RUN_RETURN);
+	return 0;
+}