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-rw-r--r--src/file_dv.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/file_dv.c b/src/file_dv.c
index 39ff43a4..719fb0e6 100644
--- a/src/file_dv.c
+++ b/src/file_dv.c
@@ -200,6 +200,7 @@ static void file_check_dv_PAL(file_recovery_t *fr)
@ requires \valid(file_recovery_new);
@ requires file_recovery_new->blocksize > 0;
@ requires separation: \separated(&file_hint_dv, buffer+(..), file_recovery, file_recovery_new);
+ @ ensures \result == 0 || \result == 1;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@*/
static int header_check_dv(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)