From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Tue, 1 Oct 2024 15:47:05 +0200
Subject: Initial version

---
 src/network/freeaddrinfo.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 src/network/freeaddrinfo.c

(limited to 'src/network/freeaddrinfo.c')

diff --git a/src/network/freeaddrinfo.c b/src/network/freeaddrinfo.c
new file mode 100644
index 0000000..62241c2
--- /dev/null
+++ b/src/network/freeaddrinfo.c
@@ -0,0 +1,16 @@
+#include <stdlib.h>
+#include <stddef.h>
+#include <netdb.h>
+#include "lookup.h"
+#include "lock.h"
+
+void freeaddrinfo(struct addrinfo *p)
+{
+	size_t cnt;
+	for (cnt=1; p->ai_next; cnt++, p=p->ai_next);
+	struct aibuf *b = (void *)((char *)p - offsetof(struct aibuf, ai));
+	b -= b->slot;
+	LOCK(b->lock);
+	if (!(b->ref -= cnt)) free(b);
+	else UNLOCK(b->lock);
+}
-- 
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