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src/file_cm.c: add frama-c annotations

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This commit is contained in:
Christophe Grenier 2021-02-14 15:23:42 +01:00
parent 1ef4dc4b3e
commit 7e85e4f2ad
1 changed files with 12 additions and 1 deletions
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13
src/file_cm.c
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@ -31,8 +31,8 @@
#include "types.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_cm(file_stat_t *file_stat);
static int header_check_cm(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 file_hint_t file_hint_cm= {
.extension="comicdoc",
@ -43,6 +43,17 @@ const file_hint_t file_hint_cm= {
.register_header_check=&register_header_check_cm
};
/*@
@ requires buffer_size > 0;
@ 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_cm, 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_cm(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)
{
reset_file_recovery(file_recovery_new);