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src/file_xfi.c: add Frama-C annotations

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Christophe Grenier 2021-03-14 15:44:42 +01:00
parent 54acf94e19
commit 2a20bac9f1
1 changed files with 24 additions and 13 deletions
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37
src/file_xfi.c
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@ -31,31 +31,42 @@
#include "types.h"
#include "filegen.h"
/*@ requires \valid(file_stat); */
static void register_header_check_xfi(file_stat_t *file_stat);
const file_hint_t file_hint_xfi= {
.extension="xfi",
.description="XFI Electronic Fuel Injection Systems",
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
.recover=1,
.enable_by_default=1,
.register_header_check=&register_header_check_xfi
const file_hint_t file_hint_xfi = {
.extension = "xfi",
.description = "XFI Electronic Fuel Injection Systems",
.max_filesize = PHOTOREC_MAX_FILE_SIZE,
.recover = 1,
.enable_by_default = 1,
.register_header_check = &register_header_check_xfi
};
/*@
@ requires buffer_size > 0;
@ 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_xfi, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@ assigns *file_recovery_new;
@*/
static int header_check_xfi(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)
{
reset_file_recovery(file_recovery_new);
file_recovery_new->extension=file_hint_xfi.extension;
file_recovery_new->extension = file_hint_xfi.extension;
return 1;
}
static void register_header_check_xfi(file_stat_t *file_stat)
{
static const unsigned char xfi_header[0x20]= {
0x2c, ' ' , 'F' , 'u' , 'e' , 'l' , ' ' , 'A' ,
'i' , 'r' , ' ' , 'S' , 'p' , 'a' , 'r' , 'k' ,
' ' , 'T' , 'e' , 'c' , 'h' , 'n' , 'o' , 'l' ,
'o' , 'g' , 'i' , 'e' , 's' , ' ' , ' ' , ' ' ,
static const unsigned char xfi_header[0x20] = {
0x2c, ' ', 'F', 'u', 'e', 'l', ' ', 'A',
'i', 'r', ' ', 'S', 'p', 'a', 'r', 'k',
' ', 'T', 'e', 'c', 'h', 'n', 'o', 'l',
'o', 'g', 'i', 'e', 's', ' ', ' ', ' '
};
register_header_check(0x10, xfi_header, sizeof(xfi_header), &header_check_xfi, file_stat);
}