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/dn_skipname.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 src/network/dn_skipname.c

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

diff --git a/src/network/dn_skipname.c b/src/network/dn_skipname.c
new file mode 100644
index 0000000..eba65bb
--- /dev/null
+++ b/src/network/dn_skipname.c
@@ -0,0 +1,15 @@
+#include <resolv.h>
+
+int dn_skipname(const unsigned char *s, const unsigned char *end)
+{
+	const unsigned char *p = s;
+	while (p < end)
+		if (!*p) return p-s+1;
+		else if (*p>=192)
+			if (p+1<end) return p-s+2;
+			else break;
+		else
+			if (end-p<*p+1) break;
+			else p += *p + 1;
+	return -1;
+}
-- 
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