src/file_nsf.c: improve Frama-C annotations

This commit is contained in:
Christophe Grenier 2021-07-03 21:59:17 +02:00
parent 17703e578b
commit 1a0b375cdf

View file

@ -31,7 +31,7 @@
#include "types.h" #include "types.h"
#include "filegen.h" #include "filegen.h"
/*@ requires \valid(file_stat); */ /*@ requires valid_register_header_check(file_stat); */
static void register_header_check_nsf(file_stat_t *file_stat); static void register_header_check_nsf(file_stat_t *file_stat);
const file_hint_t file_hint_nsf= { const file_hint_t file_hint_nsf= {
@ -45,13 +45,9 @@ const file_hint_t file_hint_nsf= {
/*@ /*@
@ requires buffer_size >= 0x12; @ requires buffer_size >= 0x12;
@ requires \valid_read(buffer+(0..buffer_size-1));
@ requires valid_file_recovery(file_recovery);
@ requires \valid(file_recovery_new);
@ requires file_recovery_new->blocksize > 0;
@ requires separation: \separated(&file_hint_nsf, buffer+(..), file_recovery, file_recovery_new); @ requires separation: \separated(&file_hint_nsf, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1; @ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new); @ ensures valid_header_check_result(\result, file_recovery_new);
@ assigns *file_recovery_new; @ assigns *file_recovery_new;
@*/ @*/
static int header_check_nsf(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) static int header_check_nsf(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)