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src/file_dxf.c: improve Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-06-07 13:41:02 +02:00
parent fba29ce621
commit b43d23d66a
1 changed files with 7 additions and 16 deletions
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23
src/file_dxf.c
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@ -32,7 +32,7 @@
#include "common.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
/*@ requires valid_register_header_check(file_stat); */
static void register_header_check_dxf(file_stat_t *file_stat);
const file_hint_t file_hint_dxf= {
@ -46,13 +46,9 @@ const file_hint_t file_hint_dxf= {
/*@
@ requires buffer_size >= 6;
@ requires (buffer_size&1)==0;
@ requires \valid_read(buffer+(0..buffer_size-1));
@ requires \valid(file_recovery);
@ requires file_recovery->data_check==&data_check_dxf;
@ requires file_recovery->calculated_file_size <= PHOTOREC_MAX_FILE_SIZE;
@ requires \separated(buffer, file_recovery);
@ ensures \result == DC_CONTINUE || \result == DC_STOP;
@ requires valid_data_check_param(buffer, buffer_size, file_recovery);
@ ensures valid_data_check_result(\result, file_recovery);
@ assigns file_recovery->calculated_file_size;
@*/
static data_check_t data_check_dxf(const unsigned char *buffer, const unsigned int buffer_size, file_recovery_t *file_recovery)
@ -74,10 +70,9 @@ static data_check_t data_check_dxf(const unsigned char *buffer, const unsigned i
}
/*@
@ requires \valid(file_recovery);
@ requires file_recovery->file_check == &file_check_dxf;
@ requires valid_file_recovery(file_recovery);
@ ensures valid_file_recovery(file_recovery);
@ requires valid_file_check_param(file_recovery);
@ ensures valid_file_check_result(file_recovery);
@ assigns *file_recovery->handle, errno, Frama_C_entropy_source, file_recovery->file_size;
@*/
static void file_check_dxf(file_recovery_t *file_recovery)
@ -88,13 +83,9 @@ static void file_check_dxf(file_recovery_t *file_recovery)
}
/*@
@ requires buffer_size > 0;
@ requires \valid_read(buffer+(0..buffer_size-1));
@ requires \valid_read(file_recovery);
@ requires valid_file_recovery(file_recovery);
@ requires \valid(file_recovery_new);
@ requires file_recovery_new->blocksize > 0;
@ requires separation: \separated(&file_hint_dxf, buffer+(..), 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;
@*/
static int header_check_dxf(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)