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src/file_steuer2014.c: add Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-03-07 14:45:09 +01:00
parent 35242e74c7
commit 13ecb58f68
1 changed files with 16 additions and 1 deletions
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17
src/file_steuer2014.c
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@ -33,6 +33,11 @@
#include "filegen.h"
#include "common.h"
#if defined(__FRAMAC__)
#undef HAVE_STRPTIME
#endif
/*@ requires \valid(file_stat); */
static void register_header_check_steuer(file_stat_t *file_stat);
static const char *extension_steuer2014="steuer2014";
static const char *extension_steuer2015="steuer2015";
@ -59,13 +64,23 @@ struct steuer_header
char date_string[0x18];
} __attribute__ ((gcc_struct, __packed__));
/*@
@ requires buffer_size >= sizeof(struct steuer_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_steuer2014, 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_steuer(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 steuer_header *h=(const struct steuer_header *)buffer;
struct tm tm_time;
if(h->version1!=h->version2)
return 0;
memset(&tm_time, 0, sizeof(struct tm));
reset_file_recovery(file_recovery_new);
switch(le32(h->version1))
{