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src/file_mcd.c: add frama-c annotations

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This commit is contained in:
Christophe Grenier 2021-02-24 17:38:36 +01:00
parent 1b0a138bbc
commit d7c32b7295
1 changed files with 12 additions and 0 deletions
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12
src/file_mcd.c
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@ -30,6 +30,7 @@
#include "types.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_mcd(file_stat_t *file_stat);
const file_hint_t file_hint_mcd= {
@ -41,6 +42,17 @@ const file_hint_t file_hint_mcd= {
.register_header_check=&register_header_check_mcd
};
/*@
@ requires buffer_size >= 2;
@ 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_mcd, buffer+(..), file_recovery, file_recovery_new);
@ assigns *file_recovery_new;
@ ensures \result == 0 || \result == 1;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@*/
static int header_check_mcd(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)
{
if(buffer[0]!=0x00 || buffer[1]!=0x00)