From 89cba92d13fbc5e059336fd054be30e50d8a2621 Mon Sep 17 00:00:00 2001
From: Garrett D'Amore <garrett@damore.org>
Date: Fri, 6 Jul 2018 12:53:06 -0700
Subject: fixes #581 nni_idhash could use 32-bit variant

---
 src/core/idhash.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'src/core/idhash.c')

diff --git a/src/core/idhash.c b/src/core/idhash.c
index 0de83eb1..0ba9056c 100644
--- a/src/core/idhash.c
+++ b/src/core/idhash.c
@@ -306,3 +306,20 @@ nni_idhash_alloc(nni_idhash *h, uint64_t *idp, void *val)
 
 	return (rv);
 }
+
+int
+nni_idhash_alloc32(nni_idhash *h, uint32_t *idp, void *val)
+{
+	uint64_t id64;
+	int      rv;
+
+	if ((rv = nni_idhash_alloc(h, &id64, val)) == 0) {
+		if (id64 > 0xffffffffull) {
+			nni_idhash_remove(h, id64);
+			rv = NNG_EINVAL;
+		} else {
+			*idp = (uint32_t) id64;
+		}
+	}
+	return (rv);
+}
-- 
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