From 08759b3f4311b484bc2e3e60c57233b5e3d00732 Mon Sep 17 00:00:00 2001 From: Christophe Grenier Date: Sun, 7 Feb 2021 19:19:10 +0100 Subject: [PATCH] src/file_a.c: add more frama-c annotations --- src/file_a.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/file_a.c b/src/file_a.c index f0cac6e8..ee1dfbdc 100644 --- a/src/file_a.c +++ b/src/file_a.c @@ -31,6 +31,7 @@ #include "types.h" #include "filegen.h" +/*@ requires \valid(file_stat); */ static void register_header_check_a(file_stat_t *file_stat); const file_hint_t file_hint_a= { @@ -53,6 +54,17 @@ struct file_header char magic[2]; } __attribute__ ((gcc_struct, __packed__)); +/*@ + @ requires buffer_size >= 8 + sizeof(struct file_header); + @ 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_a, 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_a(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 const unsigned char a_header_debian[14] = { '!','<','a','r','c','h','>','\n','d','e','b','i','a','n'};