luisgulo/testdisk
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

src/file_ifo.c: add frama-c annotations

Browse source
This commit is contained in:
Christophe Grenier 2021-02-24 08:02:54 +01:00
parent 765c7be1a1
commit 33246b1542
1 changed files with 14 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
src/file_ifo.c
View file

@ -32,6 +32,7 @@
#include "filegen.h"
#include "common.h"
/*@ requires \valid(file_stat); */
static void register_header_check_ifo(file_stat_t *file_stat);
const file_hint_t file_hint_ifo= {
@ -50,6 +51,17 @@ struct ifo_hdr
uint32_t ls_IFO;
} __attribute__ ((gcc_struct, __packed__));
/*@
@ requires buffer_size >= sizeof(struct ifo_hdr);
@ 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_ifo, 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_ifo(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 ifo_hdr *hdr=(const struct ifo_hdr *)buffer;
@ -66,6 +78,8 @@ static void register_header_check_ifo(file_stat_t *file_stat)
static const unsigned char ifo_header_vmg[12]= { 'D', 'V', 'D', 'V', 'I', 'D', 'E', 'O', '-', 'V', 'M', 'G'};
static const unsigned char ifo_header_vts[12]= { 'D', 'V', 'D', 'V', 'I', 'D', 'E', 'O', '-', 'V', 'T', 'S'};
register_header_check(0, ifo_header_vmg, sizeof(ifo_header_vmg), &header_check_ifo, file_stat);
#ifndef __FRAMAC__
register_header_check(0, ifo_header_vts, sizeof(ifo_header_vts), &header_check_ifo, file_stat);
#endif
}
#endif