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src/file_rar.c: improve Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-07-24 14:36:21 +02:00
parent c4f7eba1a0
commit 7149aeaff8
1 changed files with 9 additions and 19 deletions
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28
src/file_rar.c
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@ -32,7 +32,7 @@
#include "filegen.h" #include "filegen.h"
/*@ requires \valid(file_stat); */ /*@ requires valid_register_header_check(file_stat); */
static void register_header_check_rar(file_stat_t *file_stat); static void register_header_check_rar(file_stat_t *file_stat);
const file_hint_t file_hint_rar= { const file_hint_t file_hint_rar= {
@ -47,10 +47,9 @@ const file_hint_t file_hint_rar= {
#define MHD_PASSWORD 0x0080U #define MHD_PASSWORD 0x0080U
/*@ /*@
@ requires valid_file_recovery(file_recovery);
@ requires \separated(file_recovery, file_recovery->handle, file_recovery->extension, &errno, &Frama_C_entropy_source);
@ requires file_recovery->file_check == &file_check_rar15fmt; @ requires file_recovery->file_check == &file_check_rar15fmt;
@ ensures \valid(file_recovery->handle); @ requires valid_file_check_param(file_recovery);
@ ensures valid_file_check_result(file_recovery);
@ assigns *file_recovery->handle, errno, file_recovery->file_size; @ assigns *file_recovery->handle, errno, file_recovery->file_size;
@ assigns Frama_C_entropy_source; @ assigns Frama_C_entropy_source;
@*/ @*/
@ -62,13 +61,9 @@ static void file_check_rar15fmt(file_recovery_t *file_recovery)
/*@ /*@
@ requires buffer_size >= 0xb; @ requires buffer_size >= 0xb;
@ 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_rar, buffer+(..), file_recovery, file_recovery_new); @ requires separation: \separated(&file_hint_rar, 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!=0 ==> valid_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_rar15fmt(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_rar15fmt(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)
@ -82,10 +77,9 @@ static int header_check_rar15fmt(const unsigned char *buffer, const unsigned int
} }
/*@ /*@
@ requires valid_file_recovery(file_recovery);
@ requires \separated(file_recovery, file_recovery->handle, file_recovery->extension, &errno, &Frama_C_entropy_source);
@ requires file_recovery->file_check == &file_check_rar50fmt; @ requires file_recovery->file_check == &file_check_rar50fmt;
@ ensures \valid(file_recovery->handle); @ requires valid_file_check_param(file_recovery);
@ ensures valid_file_check_result(file_recovery);
@ assigns *file_recovery->handle, errno, file_recovery->file_size; @ assigns *file_recovery->handle, errno, file_recovery->file_size;
@ assigns Frama_C_entropy_source; @ assigns Frama_C_entropy_source;
@*/ @*/
@ -97,13 +91,9 @@ static void file_check_rar50fmt(file_recovery_t *file_recovery)
/*@ /*@
@ requires buffer_size >= 0xb; @ requires buffer_size >= 0xb;
@ 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_rar, buffer+(..), file_recovery, file_recovery_new); @ requires separation: \separated(&file_hint_rar, 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!=0 ==> valid_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_rar50fmt(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_rar50fmt(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)