From dad8d67ed017dfa8a9e674056c93ae7ab73d51cf Mon Sep 17 00:00:00 2001
From: Bob Halley <source@isc.org>
Date: Wed, 30 Dec 1998 20:17:02 +0000
Subject: [PATCH] add isc_mem_strdup

---
 lib/isc/include/isc/mem.h |  1 +
 lib/isc/mem.c             | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/lib/isc/include/isc/mem.h b/lib/isc/include/isc/mem.h
index 5f3aed1b68..16871a621e 100644
--- a/lib/isc/include/isc/mem.h
+++ b/lib/isc/include/isc/mem.h
@@ -46,6 +46,7 @@ void 				isc_mem_stats(isc_mem_t *, FILE *);
 isc_boolean_t			isc_mem_valid(isc_mem_t *, void *);
 void *				isc_mem_allocate(isc_mem_t *, size_t);
 void				isc_mem_free(isc_mem_t *, void *);
+char *				isc_mem_strdup(isc_mem_t *, const char *);
 
 #ifdef ISC_MEMCLUSTER_LEGACY
 
diff --git a/lib/isc/mem.c b/lib/isc/mem.c
index 78406cb438..51785de8ff 100644
--- a/lib/isc/mem.c
+++ b/lib/isc/mem.c
@@ -438,6 +438,20 @@ isc_mem_free(isc_mem_t *ctx, void *ptr) {
 	isc_mem_put(ctx, si, si->size);
 }
 
+char *
+isc_mem_strdup(isc_mem_t *mctx, const char *s) {
+	size_t len;
+	char *ns;
+
+	len = strlen(s);
+	ns = isc_mem_allocate(mctx, len + 1);
+	if (ns == NULL)
+		return (NULL);
+	strncpy(ns, s, len + 1);
+	
+	return (ns);
+}
+
 #ifdef ISC_MEMCLUSTER_LEGACY
 
 /*