From 43cb65f4be030a5375353a580865780bdad61381 Mon Sep 17 00:00:00 2001 From: Christophe Grenier Date: Mon, 15 Feb 2021 10:10:20 +0100 Subject: [PATCH] src/file_dvi.c: add frama-c annotations --- src/file_dvi.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/src/file_dvi.c b/src/file_dvi.c index 48570ae8..78d42604 100644 --- a/src/file_dvi.c +++ b/src/file_dvi.c @@ -31,6 +31,7 @@ #include "types.h" #include "filegen.h" +/*@ requires \valid(file_stat); */ static void register_header_check_dvi(file_stat_t *file_stat); const file_hint_t file_hint_dvi= { @@ -42,11 +43,22 @@ const file_hint_t file_hint_dvi= { .register_header_check=®ister_header_check_dvi }; +/*@ + @ requires buffer_size >= 0x15; + @ 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_dvi, 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_dvi(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_dvi.extension; - file_recovery_new->min_filesize=15+buffer[0x14]; /* 15 + comment size */ + file_recovery_new->min_filesize=0x15+buffer[0x14]; return 1; }