From bd0da1467d8660ae84158e0c6be4e91988f3936d Mon Sep 17 00:00:00 2001 From: Christophe Grenier Date: Sun, 14 Feb 2021 19:29:37 +0100 Subject: [PATCH] src/file_djv.c: add frama-c annotations --- src/file_djv.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/file_djv.c b/src/file_djv.c index 2d3731b5..587dd684 100644 --- a/src/file_djv.c +++ b/src/file_djv.c @@ -32,6 +32,7 @@ #include "filegen.h" #include "common.h" +/*@ requires \valid(file_stat); */ static void register_header_check_djv(file_stat_t *file_stat); const file_hint_t file_hint_djv= { @@ -50,6 +51,17 @@ struct djv_header uint32_t size; } __attribute__ ((gcc_struct, __packed__)); +/*@ + @ requires buffer_size >= sizeof(struct djv_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_djv, 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_djv(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) { const struct djv_header *hdr=(const struct djv_header *)buffer;