[Ocfs2-test-devel] [PATCH 5/8] defrag-test: Add a utility to verify the file data after defragmentation.

[Tristan Ye]

File's content after defragmentation needs to be fully checked in chunks with
certain pattern.

Signed-off-by: Tristan Ye <tristan.ye at oracle.com>
---
 programs/defrag-test/Makefile      |    7 ++-
 programs/defrag-test/verify_file.c |  141 ++++++++++++++++++++++++++++++++++++
 2 files changed, 146 insertions(+), 2 deletions(-)
 create mode 100644 programs/defrag-test/verify_file.c

diff --git a/programs/defrag-test/Makefile b/programs/defrag-test/Makefile
index cef9252..3140562 100644
--- a/programs/defrag-test/Makefile
+++ b/programs/defrag-test/Makefile
@@ -14,13 +14,16 @@ CFLAGS += $(INCLUDES)
 
 LIBO2TEST = $(TOPDIR)/programs/libocfs2test/libocfs2test.a
 
-SOURCES = frager.c
+SOURCES = frager.c verify_file.c
 
 DIST_FILES = $(SOURCES)
 
-BIN_PROGRAMS = frager
+BIN_PROGRAMS = frager verify_file
 
 frager: frager.o
 	$(LINK) $(OCFS2_LIBS) $(LIBO2TEST)
 
+verify_file: verify_file.o
+	$(LINK) $(OCFS2_LIBS) $(LIBO2TEST)
+
 include $(TOPDIR)/Postamble.make
diff --git a/programs/defrag-test/verify_file.c b/programs/defrag-test/verify_file.c
new file mode 100644
index 0000000..0203cf3
--- /dev/null
+++ b/programs/defrag-test/verify_file.c
@@ -0,0 +1,141 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * verify_file.c
+ *
+ * A simple utility to verify file's data in chunks.
+ *
+ * Copyright (C) 2011 Oracle.  All rights reserved.
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ */
+
+#define _GNU_SOURCE
+#define _XOPEN_SOURCE 500
+#define _LARGEFILE64_SOURCE
+
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <inttypes.h>
+#include <linux/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <time.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+
+#include "file_verify.h"
+
+char *filename = NULL, *logname = NULL;
+unsigned long filesize = 0;
+unsigned long chunksize = 0;
+union log_handler r_log;
+int verbose = 0;
+
+static int usage(void)
+{
+	fprintf(stdout, "frager <-f file> <-o log> <-l filesize> "
+		"<-k chunksize> <-v>\n");
+	fprintf(stdout, "Example:\n"
+			"       ./verify_file -f /storage/testfile -o "
+		"logs/logfile -l 104857600 -k 32768\n");
+	exit(1);
+}
+
+int parse_opts(int argc, char **argv)
+{
+	char c;
+
+	while (1) {
+		c = getopt(argc, argv, "f:o:l:hvk:");
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 'l':
+			filesize = atol(optarg);
+			break;
+		case 'k':
+			chunksize = atol(optarg);
+			break;
+		case 'f':
+			filename = optarg;
+		case 'o':
+			logname = optarg;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case 'h':
+			usage();
+			break;
+		default:
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+int setup(int argc, char *argv[])
+{
+	int ret = 0;
+	FILE *logfile = NULL;
+
+	if (parse_opts(argc, argv)) {
+		printf("parse_opts failed\n");
+		usage();
+	}
+	
+	if ((!filename) || (!logname)) {
+		fprintf(stderr, "filename and logname is a mandatory"
+			" option.\n");
+		usage();
+	}
+
+	if ((!filesize) || (!chunksize)) {
+		fprintf(stderr, "filesize and chunksize is a mandatory "
+			"option.\n");
+		usage();
+	}
+
+	ret = open_logfile(&logfile, logname, 1);
+	r_log.stream_log = logfile;
+	
+	return ret;
+}
+
+int main(int argc, char *argv[])
+{
+	int ret = 0;
+
+	ret = setup(argc, argv);
+	if (ret)
+		return ret;
+
+	ret = verify_file(0, r_log.stream_log, NULL, filename, filesize,
+			  chunksize, verbose);
+
+	return ret;
+}
-- 
1.6.5.2