From c55225c0ac41ebc0b38664e970e75f2f4d69b75e Mon Sep 17 00:00:00 2001
From: Will Hawkins <hawkinsw@obs.cr>
Date: Fri, 13 Jun 2025 09:02:06 -0400
Subject: [PATCH] Extension Header Option Length Is Single Byte

The L in the extension header option TLV is a single byte.

(Also, fix minor typo in comment.)
---
 tools/libipv6.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/libipv6.c b/tools/libipv6.c
index dd1d301..f3fe473 100644
--- a/tools/libipv6.c
+++ b/tools/libipv6.c
@@ -1052,7 +1052,7 @@ uint16_t in_chksum(void *ptr_ipv6, void *ptr_icmpv6, size_t len, uint8_t proto)
 }
 
 /*
- * Function: inset_pad_opt()
+ * Function: insert_pad_opt()
  *
  * Insert a padding option (Pad1 or PadN) into an IPv6 extension header
  */
@@ -1072,7 +1072,7 @@ int insert_pad_opt(unsigned char *ptrhdr, const unsigned char *ptrhdrend, unsign
         *ptr = 0x01;
         ptr++;
         *ptr = padn - 2;
-        ptr += 2;
+        ptr += 1;
 
         while (ptr < (ptrhdr + padn)) {
             *ptr = 0x00;