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src/file_bfa.c: add frama-c annotations

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Christophe Grenier 2021-02-13 20:56:10 +01:00
parent 5cbcb3c99e
commit a04bd897e0
1 changed files with 12 additions and 0 deletions
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12
src/file_bfa.c
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@ -32,6 +32,7 @@
#include "filegen.h" #include "filegen.h"
#include "common.h" #include "common.h"
/*@ requires \valid(file_stat); */
static void register_header_check_bfa(file_stat_t *file_stat); static void register_header_check_bfa(file_stat_t *file_stat);
const file_hint_t file_hint_bfa= { const file_hint_t file_hint_bfa= {
@ -55,6 +56,17 @@ struct bfa_header
uint32_t lKeyHash; uint32_t lKeyHash;
} __attribute__ ((gcc_struct, __packed__)); } __attribute__ ((gcc_struct, __packed__));
/*@
@ requires buffer_size >= sizeof(struct bfa_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_bfa, 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_bfa(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 int header_check_bfa(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 bfa_header *header=(const struct bfa_header*)buffer; const struct bfa_header *header=(const struct bfa_header*)buffer;