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src/file_mdf.c: add frama-c annotations

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This commit is contained in:
Christophe Grenier 2021-02-24 17:43:45 +01:00
parent 3b0e928755
commit 7ace048729
1 changed files with 18 additions and 8 deletions
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26
src/file_mdf.c
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@ -32,8 +32,8 @@
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_mdf(file_stat_t *file_stat);
static int header_check_mdf(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_mdf= {
.extension="mdf",
@ -44,13 +44,17 @@ const file_hint_t file_hint_mdf= {
.register_header_check=&register_header_check_mdf
};
static const unsigned char mdf_header[4]= { 0x01, 0x0f, 0x00, 0x00 };
static void register_header_check_mdf(file_stat_t *file_stat)
{
register_header_check(0, mdf_header,sizeof(mdf_header), &header_check_mdf, file_stat);
}
/*@
@ requires buffer_size >= 0x1c;
@ 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_mdf, 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_mdf(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[0x00]==0x01 && buffer[0x01]==0x0f && buffer[0x02]==0x00 && buffer[0x03]==0x00 &&
@ -66,4 +70,10 @@ static int header_check_mdf(const unsigned char *buffer, const unsigned int buff
}
return 0;
}
static void register_header_check_mdf(file_stat_t *file_stat)
{
static const unsigned char mdf_header[4]= { 0x01, 0x0f, 0x00, 0x00 };
register_header_check(0, mdf_header,sizeof(mdf_header), &header_check_mdf, file_stat);
}
#endif