src/file_r3d.c: improve Frama-C annotations

This commit is contained in:
Christophe Grenier 2021-07-08 20:58:01 +02:00
parent 260c40183b
commit a723179662

View file

@ -34,7 +34,7 @@
#include "common.h"
#include "log.h"
/*@ requires \valid(file_stat); */
/*@ requires valid_register_header_check(file_stat); */
static void register_header_check_r3d(file_stat_t *file_stat);
const file_hint_t file_hint_r3d = {
@ -53,13 +53,9 @@ struct atom_struct
} __attribute__((gcc_struct, __packed__));
/*@
@ requires buffer_size > 0;
@ requires (buffer_size&1)==0;
@ requires \valid_read(buffer+(0..buffer_size-1));
@ requires \valid(file_recovery);
@ requires file_recovery->data_check==&data_check_r3d;
@ requires \separated(buffer + (..), file_recovery);
@ ensures \result == DC_CONTINUE || \result == DC_STOP;
@ requires valid_data_check_param(buffer, buffer_size, file_recovery);
@ ensures valid_data_check_result(\result, file_recovery);
@ assigns file_recovery->calculated_file_size, file_recovery->data_check;
@*/
static data_check_t data_check_r3d(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
@ -105,9 +101,9 @@ static data_check_t data_check_r3d(const unsigned char *buffer, const unsigned i
}
/*@
@ requires \valid(file_recovery);
@ requires valid_file_recovery(file_recovery);
@ requires file_recovery->file_rename==&file_rename_r3d;
@ requires valid_file_rename_param(file_recovery);
@ ensures valid_file_rename_result(file_recovery);
@*/
static void file_rename_r3d(file_recovery_t *file_recovery)
{
@ -132,13 +128,9 @@ static void file_rename_r3d(file_recovery_t *file_recovery)
/*@
@ requires buffer_size >= sizeof(struct atom_struct);
@ 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_r3d, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
@ ensures valid_header_check_result(\result, file_recovery_new);
@ assigns *file_recovery_new;
@*/
static int header_check_r3d(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)
@ -162,13 +154,9 @@ static int header_check_r3d(const unsigned char *buffer, const unsigned int buff
/*@
@ requires buffer_size >= 0xc;
@ 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_r3d, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
@ ensures valid_header_check_result(\result, file_recovery_new);
@ assigns *file_recovery_new;
@*/
static int header_check_r3d_v2(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)