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src/file_a.c: add more frama-c annotations

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This commit is contained in:
Christophe Grenier 2021-02-07 19:19:10 +01:00
parent fa50d166ec
commit 08759b3f43
1 changed files with 12 additions and 0 deletions
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12
src/file_a.c
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@ -31,6 +31,7 @@
#include "types.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_a(file_stat_t *file_stat);
const file_hint_t file_hint_a= {
@ -53,6 +54,17 @@ struct file_header
char magic[2];
} __attribute__ ((gcc_struct, __packed__));
/*@
@ requires buffer_size >= 8 + sizeof(struct file_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_a, 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_a(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)
{
static const unsigned char a_header_debian[14] = { '!','<','a','r','c','h','>','\n','d','e','b','i','a','n'};