From 28fdce547c417b868c521f87fb58f71ca6b1e3f7 Mon Sep 17 00:00:00 2001
From: Gerald Combs <gerald@wireshark.org>
Date: Thu, 18 May 2023 13:52:48 -0700
Subject: [PATCH] RTPS: Fixup our g_strlcpy dest_sizes

Use the proper dest_size in various g_strlcpy calls.

Fixes #19085
---
 epan/dissectors/packet-rtps.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/epan/dissectors/packet-rtps.c b/epan/dissectors/packet-rtps.c
index 2884e86faa1..a39202952f6 100644
--- a/epan/dissectors/packet-rtps.c
+++ b/epan/dissectors/packet-rtps.c
@@ -4944,7 +4944,7 @@ static gint rtps_util_add_typecode(proto_tree *tree, tvbuff_t *tvb, gint offset,
     ++tk_id;
   }
 
-  g_strlcpy(type_name, rtps_util_typecode_id_to_string(tk_id), 40);
+  g_strlcpy(type_name, rtps_util_typecode_id_to_string(tk_id), sizeof(type_name));
 
     /* Structure of the typecode data:
      *
@@ -5115,7 +5115,7 @@ static gint rtps_util_add_typecode(proto_tree *tree, tvbuff_t *tvb, gint offset,
                     member_name, -1, NULL, ndds_40_hack);
         }
         /* Finally prints the name of the struct (if provided) */
-        g_strlcpy(type_name, "}", 40);
+        g_strlcpy(type_name, "}", sizeof(type_name));
         break;
 
     } /* end of case UNION */
@@ -5286,7 +5286,7 @@ static gint rtps_util_add_typecode(proto_tree *tree, tvbuff_t *tvb, gint offset,
           }
         }
         /* Finally prints the name of the struct (if provided) */
-        g_strlcpy(type_name, "}", 40);
+        g_strlcpy(type_name, "}", sizeof(type_name));
         break;
       }
 
@@ -5378,7 +5378,7 @@ static gint rtps_util_add_typecode(proto_tree *tree, tvbuff_t *tvb, gint offset,
         offset += 4;
         alias_name = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, alias_name_length, ENC_ASCII);
         offset += alias_name_length;
-        g_strlcpy(type_name, alias_name, 40);
+        g_strlcpy(type_name, alias_name, sizeof(type_name));
         break;
     }
 
@@ -5413,7 +5413,7 @@ static gint rtps_util_add_typecode(proto_tree *tree, tvbuff_t *tvb, gint offset,
         if (tk_id == RTI_CDR_TK_VALUE_PARAM) {
           type_id_name = "valueparam";
         }
-        g_snprintf(type_name, 40, "%s '%s'", type_id_name, value_name);
+        g_snprintf(type_name, sizeof(type_name), "%s '%s'", type_id_name, value_name);
         break;
     }
   } /* switch(tk_id) */
-- 
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