From: Olivier Houchard <ohouchard@haproxy.com>
Date: Fri, 14 Aug 2026 16:59:44 +0000 (+0200)
Subject: BUILD: protocol: silence -Warray-bounds in single-group builds
X-Git-Tag: v3.5-dev5~29
X-Git-Url: https://git.kaiwu.me/?a=commitdiff_plain;h=753415518aab5d36443fa2e8bfafd3fd62115313;p=haproxy.git

BUILD: protocol: silence -Warray-bounds in single-group builds

When MAX_TGROUPS is 1 (e.g. built without threads), gcc warns that the
ha_tgroup_ctx[] accesses in protocol_grab_foreign_receivers() may be out
of bounds, as it cannot know that nbtgroups < 2 makes them unreachable.
---

diff --git a/src/protocol.c b/src/protocol.c
index a4a0332d5..eb44f9802 100644
--- a/src/protocol.c
+++ b/src/protocol.c
@@ -197,7 +197,7 @@ int protocol_getsocks_foreign_fds(struct receiver ***orxs, int **ofds)
 	*orxs = NULL;
 	*ofds = NULL;
 
-	if (!(global.tune.options & GTUNE_NO_TG_FD_SHARING) || global.nbtgroups < 2)
+	if (MAX_TGROUPS < 2 || !(global.tune.options & GTUNE_NO_TG_FD_SHARING) || global.nbtgroups < 2)
 		return 0;
 
 	/* first pass: count the candidates */