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src/file_pfx.c: add Frama-C annotations

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Christophe Grenier 2021-02-27 10:55:53 +01:00
parent 2ef3a0d029
commit db23e68526
1 changed files with 12 additions and 0 deletions
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12
src/file_pfx.c
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@ -31,6 +31,7 @@
#include "types.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_pfx(file_stat_t *file_stat);
const file_hint_t file_hint_pfx= {
@ -64,6 +65,17 @@ const file_hint_t file_hint_pfx= {
* Here, contentType=data
*/
/*@
@ requires buffer_size >= 9;
@ 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_pfx, 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_pfx(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]==0x30 && buffer[1]==0x82 &&