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src/file_exe.c: improve Frama-C annotations

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This commit is contained in:
Christophe Grenier 2021-06-09 18:52:49 +02:00
parent 2a3f5aee88
commit e7c5d9299c
1 changed files with 5 additions and 13 deletions
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18
src/file_exe.c
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@ -40,7 +40,7 @@
#include "__fc_builtin.h"
#endif
/*@ requires \valid(file_stat); */
/*@ requires valid_register_header_check(file_stat); */
static void register_header_check_exe(file_stat_t *file_stat);
const file_hint_t file_hint_exe= {
@ -601,9 +601,9 @@ static void pe_resource_type(FILE *file, const unsigned int base, const unsigned
}
/*@
@ requires \valid(file_recovery);
@ requires valid_read_string((char*)&file_recovery->filename);
@ requires file_recovery->file_rename==&file_rename_pe_exe;
@ requires valid_file_rename_param(file_recovery);
@ ensures valid_file_rename_result(file_recovery);
@*/
static void file_rename_pe_exe(file_recovery_t *file_recovery)
{
@ -719,22 +719,14 @@ static void file_rename_pe_exe(file_recovery_t *file_recovery)
/*@
@ requires buffer_size >= 2;
@ 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_exe, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1;
@ ensures (\result == 1) ==> (file_recovery_new->file_stat == \null);
@ ensures (\result == 1) ==> (file_recovery_new->handle == \null);
@ 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);
@ ensures (\result == 1) ==> (file_recovery_new->extension == file_hint_exe.extension || file_recovery_new->extension == extension_dll);
@ ensures (\result == 1) ==> (file_recovery_new->data_check == \null || file_recovery_new->data_check == &data_check_size);
@ ensures (\result == 1) ==> (file_recovery_new->file_check == \null || file_recovery_new->file_check == &file_check_size);
@ ensures (\result == 1) ==> (file_recovery_new->file_rename == \null || file_recovery_new->file_rename == &file_rename_pe_exe);
@ 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;
@*/
static int header_check_exe(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)