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src/file_dbf.c: add frama-c annotations

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This commit is contained in:
Christophe Grenier 2021-02-14 18:11:26 +01:00
parent 7626d05010
commit 36f6d74f06
1 changed files with 18 additions and 8 deletions
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26
src/file_dbf.c
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@ -31,8 +31,8 @@
#include "types.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_dbf(file_stat_t *file_stat);
static int header_check_dbf(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_dbf= {
.extension="dbf",
@ -43,13 +43,17 @@ const file_hint_t file_hint_dbf= {
.register_header_check=&register_header_check_dbf
};
static const unsigned char dbf_header[1]= {0x3};
static void register_header_check_dbf(file_stat_t *file_stat)
{
register_header_check(0, dbf_header,sizeof(dbf_header), &header_check_dbf, file_stat);
}
/*@
@ requires buffer_size >= 32;
@ 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_dbf, 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_dbf(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)
{
/* 0x03 YY MM DD reserved=0 */
@ -67,4 +71,10 @@ static int header_check_dbf(const unsigned char *buffer, const unsigned int buff
}
return 0;
}
static void register_header_check_dbf(file_stat_t *file_stat)
{
static const unsigned char dbf_header[1]= {0x3};
register_header_check(0, dbf_header,sizeof(dbf_header), &header_check_dbf, file_stat);
}
#endif