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src/file_wks.c: improve Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-07-27 21:49:16 +02:00
parent ef46fa9552
commit 2a933246e8
1 changed files with 5 additions and 13 deletions
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18
src/file_wks.c
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@ -31,7 +31,7 @@
#include "types.h" #include "types.h"
#include "filegen.h" #include "filegen.h"
/*@ requires \valid(file_stat); */ /*@ requires valid_register_header_check(file_stat); */
static void register_header_check_wks(file_stat_t *file_stat); static void register_header_check_wks(file_stat_t *file_stat);
const file_hint_t file_hint_wks = { const file_hint_t file_hint_wks = {
@ -55,13 +55,9 @@ const file_hint_t file_hint_wks = {
* http://www.schnarff.com/file-formats/lotus-1-2-3/WSFF2.TXT * http://www.schnarff.com/file-formats/lotus-1-2-3/WSFF2.TXT
*/ */
/*@ /*@
@ 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_wks, buffer+(..), file_recovery, file_recovery_new); @ requires separation: \separated(&file_hint_wks, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new); @ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
@ ensures valid_header_check_result(\result, file_recovery_new);
@ assigns *file_recovery_new; @ assigns *file_recovery_new;
@*/ @*/
static int header_check_wk4(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_wk4(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)
@ -72,13 +68,9 @@ static int header_check_wk4(const unsigned char *buffer, const unsigned int buff
} }
/*@ /*@
@ 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_wks, buffer+(..), file_recovery, file_recovery_new); @ requires separation: \separated(&file_hint_wks, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new); @ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
@ ensures valid_header_check_result(\result, file_recovery_new);
@ assigns *file_recovery_new; @ assigns *file_recovery_new;
@*/ @*/
static int header_check_wks(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_wks(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)