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src/file_lxo.c: add frama-c annotations

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Christophe Grenier 2021-02-24 08:11:48 +01:00
parent 8a0191114e
commit 6bc7764629
1 changed files with 12 additions and 0 deletions
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12
src/file_lxo.c
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@ -32,6 +32,7 @@
#include "common.h" #include "common.h"
#include "filegen.h" #include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_lxo(file_stat_t *file_stat); static void register_header_check_lxo(file_stat_t *file_stat);
const file_hint_t file_hint_lxo= { const file_hint_t file_hint_lxo= {
@ -50,6 +51,17 @@ struct lxo_header
char type[3]; char type[3];
} __attribute__ ((gcc_struct, __packed__)); } __attribute__ ((gcc_struct, __packed__));
/*@
@ requires buffer_size >= sizeof(struct lxo_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_lxo, 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_lxo(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_lxo(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 lxo_header *header=(const struct lxo_header *)buffer; const struct lxo_header *header=(const struct lxo_header *)buffer;