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src/file_fit.c: add frama-c annotations

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Christophe Grenier 2021-02-20 18:05:26 +01:00
parent ad59bf94c2
commit 756a415fe8
1 changed files with 12 additions and 0 deletions
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12
src/file_fit.c
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@ -33,6 +33,7 @@
#include "filegen.h"
#include "common.h"
/*@ requires \valid(file_stat); */
static void register_header_check_fit(file_stat_t *file_stat);
const file_hint_t file_hint_fit = {
@ -53,6 +54,17 @@ struct fits_header
char signature[4];
} __attribute__ ((gcc_struct, __packed__));
/*@
@ requires buffer_size >= sizeof(struct fits_header);
@ 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_fit, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@ assigns *file_recovery_new;
@*/
static int header_check_fit(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)
{
const struct fits_header* h = (const struct fits_header *)buffer;