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src/file_fp7.c: add frama-c annotations

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This commit is contained in:
Christophe Grenier 2021-02-21 12:15:58 +01:00
parent b5f5d9d73b
commit 03be63a260
1 changed files with 12 additions and 0 deletions
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12
src/file_fp7.c
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@ -30,6 +30,7 @@
#include "types.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_fp7(file_stat_t *file_stat);
static int header_check_fp7(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);
@ -47,6 +48,17 @@ static void file_check_fp7(file_recovery_t *file_recovery)
file_recovery->file_size=file_recovery->file_size/4096*4096;
}
/*@
@ 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_fp7, 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_fp7(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_size < 0x230 || memcmp(&buffer[0x20d], "HBAM", 4)!=0)