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src/file_dir.c: improve Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-06-06 17:39:45 +02:00
parent c241c41e10
commit a08792b5ee
1 changed files with 11 additions and 13 deletions
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24
src/file_dir.c
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@ -36,7 +36,7 @@
#include "common.h"
#include "fat_common.h"
/*@ requires \valid(file_stat); */
/*@ requires valid_register_header_check(file_stat); */
static void register_header_check_dir(file_stat_t *file_stat);
const file_hint_t file_hint_dir= {
@ -49,9 +49,9 @@ const file_hint_t file_hint_dir= {
};
/*@
@ requires \valid(file_recovery);
@ requires valid_file_recovery(file_recovery);
@ requires file_recovery->file_rename==&file_rename_fatdir;
@ requires valid_file_rename_param(file_recovery);
@ ensures valid_file_rename_result(file_recovery);
@*/
static void file_rename_fatdir(file_recovery_t *file_recovery)
{
@ -69,16 +69,17 @@ static void file_rename_fatdir(file_recovery_t *file_recovery)
/*@ assert buffer_size >= 32; */
cluster=fat_get_cluster_from_entry((const struct msdos_dir_entry *)&buffer[0]);
sprintf(buffer_cluster, "cluster_%u", cluster);
#if defined(__FRAMAC__)
buffer_cluster[sizeof(buffer_cluster)-1]='\0';
#endif
file_rename(file_recovery, buffer_cluster, strlen(buffer_cluster), 0, NULL, 1);
}
/*@
@ requires buffer_size >= 2;
@ requires (buffer_size&1)==0;
@ requires \valid_read((char *)buffer+(0..buffer_size-1));
@ requires \valid(file_recovery);
@ requires file_recovery->data_check == &data_check_fatdir;
@ requires file_recovery->calculated_file_size <= PHOTOREC_MAX_FILE_SIZE;
@ requires buffer_size >= 2;
@ requires valid_data_check_param(buffer, buffer_size, file_recovery);
@ ensures valid_data_check_result(\result, file_recovery);
@ ensures \result == DC_STOP;
@ assigns file_recovery->calculated_file_size;
@*/
@ -91,13 +92,10 @@ static data_check_t data_check_fatdir(const unsigned char *buffer, const unsigne
/*@
@ requires buffer_size >= sizeof(struct msdos_dir_entry);
@ 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_dir, buffer+(..), 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;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@*/
static int header_check_dir(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)
{