snapshot: md5sum return codes are not properly handled

Signed-off-by: John Crispin <john@phrozen.org>

diff --git a/libfstools/snapshot.c b/libfstools/snapshot.c
index 936f2af21a76967051a903c29c60593306b68662..4870cf7a1955b7fd91d4b31e8dbcfd3f0e9d47fd 100644 (file)
--- a/libfstools/snapshot.c
+++ b/libfstools/snapshot.c
@@ -39,7 +39,7 @@ verify_file_hash(char *file, uint32_t *hash)
 {
        uint32_t md5[4];
 
-       if (md5sum(file, md5)) {
+       if (md5sum(file, md5) <= 0) {
                ULOG_ERR("failed to generate md5 sum\n");
                return -1;
        }
@@ -120,7 +120,7 @@ snapshot_write_file(struct volume *v, int block, char *file, uint32_t seq, uint3
        int in = 0, len, offset;
        int ret = -1;
 
-       if (stat(file, &s) || md5sum(file, md5)) {
+       if (stat(file, &s) || md5sum(file, md5) != s.st_size) {
                ULOG_ERR("stat failed on %s\n", file);
                goto out;
        }