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src/file_tar.c: improve Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-07-24 17:58:25 +02:00
parent 8422034f53
commit c1624c942b
1 changed files with 4 additions and 9 deletions
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13
src/file_tar.c
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@ -33,7 +33,7 @@
#include "filegen.h"
#include "file_tar.h"
/*@ requires \valid(file_stat); */
/*@ requires valid_register_header_check(file_stat); */
static void register_header_check_tar(file_stat_t *file_stat);
static const unsigned char tar_header_gnu[6] = { 'u', 's', 't', 'a', 'r', 0x00 };
static const unsigned char tar_header_posix[8] = { 'u', 's', 't', 'a', 'r', ' ', ' ', 0x00 };
@ -106,14 +106,9 @@ int is_valid_tar_header(const struct tar_posix_header *h)
/*@
@ requires buffer_size >= sizeof(struct tar_posix_header);
@ 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_tar, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1;
@ 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;
@*/
static int header_check_tar(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)
@ -134,7 +129,7 @@ static int header_check_tar(const unsigned char *buffer, const unsigned int buff
}
/*@
@ requires \valid(file_stat);
@ requires valid_register_header_check(file_stat);
@*/
static void register_header_check_tar(file_stat_t *file_stat)
{