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src/file_msa.c: improve frama-c annotations

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This commit is contained in:
Christophe Grenier 2021-02-24 20:57:12 +01:00
parent bf8664ce7e
commit 22b1e66917
1 changed files with 5 additions and 2 deletions
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7
src/file_msa.c
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@ -32,6 +32,7 @@
#include "filegen.h" #include "filegen.h"
#include "common.h" #include "common.h"
/*@ requires \valid(file_stat); */
static void register_header_check_msa(file_stat_t *file_stat); static void register_header_check_msa(file_stat_t *file_stat);
const file_hint_t file_hint_msa= { const file_hint_t file_hint_msa= {
@ -52,11 +53,13 @@ struct msa_header
/*@ /*@
@ requires buffer_size > 0x13; @ requires buffer_size > 0x13;
@ requires \valid_read(buffer+(0..buffer_size-1)); @ requires \valid_read(buffer+(0..buffer_size-1));
@ requires \valid_read(file_recovery); @ requires valid_file_recovery(file_recovery);
@ requires file_recovery->file_stat==\null || valid_read_string((char*)file_recovery->filename);
@ requires \valid(file_recovery_new); @ requires \valid(file_recovery_new);
@ requires file_recovery_new->blocksize > 0; @ requires file_recovery_new->blocksize > 0;
@ requires separation: \separated(&file_hint_msa, buffer+(..), file_recovery, file_recovery_new); @ requires separation: \separated(&file_hint_msa, buffer+(..), file_recovery, file_recovery_new);
@ assigns *file_recovery_new;
@ ensures \result == 0 || \result == 1;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@*/ @*/
static int header_check_msa(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_msa(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)
{ {