From dd71ef0af222a566e54dfc479dd1951dd17d7ceb Mon Sep 17 00:00:00 2001
From: Philippe Antoine <pantoine@oisf.net>
Date: Mon, 4 Nov 2024 17:09:32 +0100
Subject: [PATCH] suricata/bpf: fix -Wshorten-64-to-32 warning

Ticket: 7366
Ticket: 6186
---
 src/suricata.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/suricata.c b/src/suricata.c
index 0de8039be1f0..49505f94ba89 100644
--- a/src/suricata.c
+++ b/src/suricata.c
@@ -505,7 +505,7 @@ static void SetBpfStringFromFile(char *filename)
     char *bpf_filter = NULL;
     char *bpf_comment_tmp = NULL;
     char *bpf_comment_start =  NULL;
-    uint32_t bpf_len = 0;
+    size_t bpf_len = 0;
     SCStat st;
     FILE *fp = NULL;
     size_t nm = 0;
@@ -520,7 +520,8 @@ static void SetBpfStringFromFile(char *filename)
         SCLogError("Failed to stat file %s", filename);
         exit(EXIT_FAILURE);
     }
-    bpf_len = st.st_size + 1;
+    // st.st_size is signed on Windows
+    bpf_len = ((size_t)(st.st_size)) + 1;
 
     bpf_filter = SCCalloc(1, bpf_len);
     if (unlikely(bpf_filter == NULL)) {