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src/file_stu.c: add Frama-C annotations

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Christophe Grenier 2021-03-07 14:50:28 +01:00
parent 13ecb58f68
commit cd16590f81
1 changed files with 12 additions and 0 deletions
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12
src/file_stu.c
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@ -32,6 +32,7 @@
#include "filegen.h" #include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_stuffit(file_stat_t *file_stat); static void register_header_check_stuffit(file_stat_t *file_stat);
const file_hint_t file_hint_stuffit= { const file_hint_t file_hint_stuffit= {
@ -43,6 +44,17 @@ const file_hint_t file_hint_stuffit= {
.register_header_check=&register_header_check_stuffit .register_header_check=&register_header_check_stuffit
}; };
/*@
@ requires buffer_size > 0;
@ 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_stuffit, 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_stuffit(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_stuffit(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)
{ {
reset_file_recovery(file_recovery_new); reset_file_recovery(file_recovery_new);