From 6453c9b79b05d92730a391bdf76dc4341f872eab Mon Sep 17 00:00:00 2001 From: Christophe Grenier Date: Mon, 22 Feb 2021 22:25:56 +0100 Subject: [PATCH] src/file_icns.c: add frama-c annotations --- src/file_icns.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/file_icns.c b/src/file_icns.c index 22163694..ddc4dbe9 100644 --- a/src/file_icns.c +++ b/src/file_icns.c @@ -32,6 +32,7 @@ #include "filegen.h" #include "common.h" +/*@ requires \valid(file_stat); */ static void register_header_check_icns(file_stat_t *file_stat); const file_hint_t file_hint_icns= { @@ -56,6 +57,10 @@ struct icon_data // uint8_t data[0]; }; +/*@ + @ requires \valid_read(type + (0 .. 3)); + @ assigns \nothing; + @*/ static int check_icon_type(const char *type) { /* https://en.wikipedia.org/wiki/Apple_Icon_Image_format */ @@ -97,6 +102,17 @@ static int check_icon_type(const char *type) return 0; } +/*@ + @ requires buffer_size >= sizeof(struct icns_header) + sizeof(struct icon_data); + @ 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_icns, buffer+(..), file_recovery, file_recovery_new); + @ ensures \result == 0 || \result == 1; + @ ensures \result!=0 ==> valid_file_recovery(file_recovery_new); + @ assigns *file_recovery_new; + @*/ static int header_check_icns(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 icns_header *hdr=(const struct icns_header *)buffer;