From b5d4b3cef3504b1ca6734ca8fd56b8d6a1c304ac Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.com>
Date: Wed, 15 Mar 2017 12:21:50 +0100
Subject: [PATCH] btrfs-progs: tests: fssum, switch from MD5 to SHA256

Signed-off-by: David Sterba <dsterba@suse.com>
---
 Makefile      |  5 ++---
 tests/fssum.c | 14 +++++++-------
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/Makefile b/Makefile
index 3a713d3..9e2e6d5 100644
--- a/Makefile
+++ b/Makefile
@@ -466,10 +466,9 @@ library-test.static: library-test.c messages.static.o $(libs_static)
 	@echo "    [TEST CLEAN] $@"
 	$(Q)$(RM) -rf -- $(TMPD)
 
-fssum: tests/fssum.c
+fssum: tests/fssum.c tests/sha224-256.c
 	@echo "    [LD]   $@"
-	# FIXME: no configure-time check for libcrypto from SSL
-	$(Q)$(CC) $(CFLAGS) -o $@ $< $(LDFLAGS) -lcrypto
+	$(Q)$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
 
 test-build: test-build-pre test-build-real
 
diff --git a/tests/fssum.c b/tests/fssum.c
index a69f80f..83bd410 100644
--- a/tests/fssum.c
+++ b/tests/fssum.c
@@ -25,12 +25,12 @@
 #include <dirent.h>
 #include <errno.h>
 #include <sys/stat.h>
-#include <openssl/md5.h>
 #include <assert.h>
 #include <time.h>
 #include <stdint.h>
+#include "tests/sha.h"
 
-#define CS_SIZE 16
+#define CS_SIZE 32
 #define CHUNKS	128
 
 #ifndef SEEK_DATA
@@ -47,8 +47,8 @@ struct excludes {
 };
 
 typedef struct _sum {
-	MD5_CTX 	md5;
-	unsigned char	out[16];
+	SHA256Context   sha;
+	unsigned char	out[CS_SIZE];
 } sum_t;
 
 typedef int (*sum_file_data_t)(int fd, sum_t *dst);
@@ -173,19 +173,19 @@ alloc(size_t sz)
 void
 sum_init(sum_t *cs)
 {
-	MD5_Init(&cs->md5);
+	SHA256Reset(&cs->sha);
 }
 
 void
 sum_fini(sum_t *cs)
 {
-	MD5_Final(cs->out, &cs->md5);
+	SHA256Result(&cs->sha, cs->out);
 }
 
 void
 sum_add(sum_t *cs, void *buf, int size)
 {
-	MD5_Update(&cs->md5, buf, size);
+	SHA256Input(&cs->sha, buf, size);
 }
 
 void
-- 
2.7.4