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src/file_spe.c: improve Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-07-24 16:04:06 +02:00
parent dd4e040d3a
commit 60b5272f9e
1 changed files with 4 additions and 11 deletions
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15
src/file_spe.c
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@ -36,7 +36,7 @@
#include "__fc_builtin.h" #include "__fc_builtin.h"
#endif #endif
/*@ requires \valid(file_stat); */ /*@ requires valid_register_header_check(file_stat); */
static void register_header_check_spe(file_stat_t *file_stat); static void register_header_check_spe(file_stat_t *file_stat);
const file_hint_t file_hint_spe= { const file_hint_t file_hint_spe= {
@ -243,14 +243,9 @@ struct header_spe
/*@ /*@
@ requires \valid_read(buffer+(0..buffer_size-1)); @ requires \valid_read(buffer+(0..buffer_size-1));
@ requires \valid_read(file_recovery);
@ requires file_recovery->file_stat==\null || valid_read_string((char*)file_recovery->filename);
@ requires \valid(file_recovery_new);
@ requires file_recovery_new->blocksize > 0;
@ requires separation: \separated(&file_hint_spe, buffer+(..), file_recovery, file_recovery_new); @ requires separation: \separated(&file_hint_spe, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1; @ requires valid_header_check_param(buffer, buffer_size, safe_header_only, file_recovery, file_recovery_new);
@ ensures (\result == 1) ==> (file_recovery_new->file_stat == \null); @ ensures valid_header_check_result(\result, file_recovery_new);
@ ensures (\result == 1) ==> (file_recovery_new->handle == \null);
@ ensures (\result == 1) ==> (file_recovery_new->extension == file_hint_spe.extension); @ ensures (\result == 1) ==> (file_recovery_new->extension == file_hint_spe.extension);
@ ensures (\result == 1) ==> (file_recovery_new->time == 0); @ ensures (\result == 1) ==> (file_recovery_new->time == 0);
@ ensures (\result == 1) ==> (file_recovery_new->calculated_file_size >= 4100); @ ensures (\result == 1) ==> (file_recovery_new->calculated_file_size >= 4100);
@ -259,9 +254,6 @@ struct header_spe
@ ensures (\result == 1) ==> (file_recovery_new->data_check == &data_check_size); @ ensures (\result == 1) ==> (file_recovery_new->data_check == &data_check_size);
@ ensures (\result == 1) ==> (file_recovery_new->file_check == &file_check_size); @ ensures (\result == 1) ==> (file_recovery_new->file_check == &file_check_size);
@ ensures (\result == 1) ==> (file_recovery_new->file_rename == \null); @ ensures (\result == 1) ==> (file_recovery_new->file_rename == \null);
@ ensures (\result == 1) ==> (valid_read_string(file_recovery_new->extension));
@ ensures (\result == 1) ==> \separated(file_recovery_new, file_recovery_new->extension);
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@ assigns file_recovery_new->filename[0]; @ assigns file_recovery_new->filename[0];
@ assigns file_recovery_new->time; @ assigns file_recovery_new->time;
@ assigns file_recovery_new->file_stat; @ assigns file_recovery_new->file_stat;
@ -283,6 +275,7 @@ struct header_spe
@ assigns file_recovery_new->checkpoint_offset; @ assigns file_recovery_new->checkpoint_offset;
@ assigns file_recovery_new->flags; @ assigns file_recovery_new->flags;
@ assigns file_recovery_new->extra; @ assigns file_recovery_new->extra;
@ assigns file_recovery_new->data_check_tmp;
@*/ @*/
static int header_check_spe(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_spe(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)
{ {