Imported reiserfsprogs-3.6.20

utils/fsck/stage.c

@@ -0,0 +1,70 @@
+/*
+ * Copyright 1996-2004 by Hans Reiser, licensing governed by 
+ * reiserfsprogs/README
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif
+
+#include "fsck.h"
+#include <errno.h>
+
+#define FSCK_DUMP_START_MAGIC 374033
+#define FSCK_DUMP_END_MAGIC 7786470
+
+void fsck_stage_start_put (FILE * file, unsigned long stage) {
+    __u32 v = FSCK_DUMP_START_MAGIC;
+    fwrite (&v, 4, 1, file);
+    fwrite (&stage, 4, 1, file);
+}
+
+
+void fsck_stage_end_put (FILE * file) {
+    __u32 v = FSCK_DUMP_END_MAGIC;
+    fwrite (&v, 4, 1, file);
+}
+
+/*return last passed stage*/
+int fsck_stage_magic_check (FILE * fp)
+{
+    __u32 v;
+
+    if (fseek (fp, -4, SEEK_END)) {
+	reiserfs_warning (stderr, "%s: fseek failed: %s\n", 
+			  __FUNCTION__, strerror(errno));
+	return -1;
+    }
+
+    fread (&v, 4, 1, fp);
+    if (v != FSCK_DUMP_END_MAGIC) {
+	reiserfs_warning (stderr, "%s: no magic found\n", __FUNCTION__);
+	return -1;
+    }
+
+    if (fseek (fp, 0, SEEK_SET)) {
+	reiserfs_warning (stderr, "%s: fseek failed: %s\n", 
+			  __FUNCTION__, strerror(errno));
+	return -1;
+    }
+
+    fread (&v, 4, 1, fp);
+    if (v != FSCK_DUMP_START_MAGIC) {
+	reiserfs_warning (stderr, "%s: no magic found\n", __FUNCTION__);
+	return -1;
+    }
+
+    fread (&v, 4, 1, fp);
+    if (v != PASS_0_DONE && 
+	v != PASS_1_DONE && 
+	v != TREE_IS_BUILT && 
+	v != SEMANTIC_DONE && 
+	v != LOST_FOUND_DONE) 
+    {
+	reiserfs_warning (stderr, "%s: wrong pass found", __FUNCTION__);
+	return -1;
+    }
+
+    return (__u16)v;
+}
+