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DomainTree: throwing correct exception.

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This commit is contained in:
Shreyas Zare
2020-07-18 12:05:27 +05:30
parent ed3535a7e6
commit 8387bc5e27
1 changed files with 7 additions and 8 deletions
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15
DnsServerCore/Dns/Zones/DomainTree.cs
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@@ -20,7 +20,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
using System;
using System.Text;
using TechnitiumLibrary.ByteTree;
using TechnitiumLibrary.Net.Dns;
namespace DnsServerCore.Dns.Zones
{
@@ -98,7 +97,7 @@ namespace DnsServerCore.Dns.Zones
return Array.Empty<byte>();
if (domain.Length > 255)
throw new DnsClientException("Invalid domain name [" + domain + "]: length cannot exceed 255 bytes.");
throw new DnsServerException("Invalid domain name [" + domain + "]: length cannot exceed 255 bytes.");
byte[] key = new byte[domain.Length + 1];
int keyOffset = 0;
@@ -118,16 +117,16 @@ namespace DnsServerCore.Dns.Zones
labelLength = labelEnd - labelStart;
if (labelLength == 0)
throw new DnsClientException("Invalid domain name [" + domain + "]: label length cannot be 0 byte.");
throw new DnsServerException("Invalid domain name [" + domain + "]: label length cannot be 0 byte.");
if (labelLength > 63)
throw new DnsClientException("Invalid domain name [" + domain + "]: label length cannot exceed 63 bytes.");
throw new DnsServerException("Invalid domain name [" + domain + "]: label length cannot exceed 63 bytes.");
if (domain[labelStart + 1] == '-')
throw new DnsClientException("Invalid domain name [" + domain + "]: label cannot start with hyphen.");
throw new DnsServerException("Invalid domain name [" + domain + "]: label cannot start with hyphen.");
if (domain[labelEnd] == '-')
throw new DnsClientException("Invalid domain name [" + domain + "]: label cannot end with hyphen.");
throw new DnsServerException("Invalid domain name [" + domain + "]: label cannot end with hyphen.");
if ((labelLength == 1) && (domain[labelStart + 1] == '*'))
{
@@ -139,11 +138,11 @@ namespace DnsServerCore.Dns.Zones
{
labelChar = domain[i];
if (labelChar >= _keyMap.Length)
throw new DnsClientException("Invalid domain name [" + domain + "]: invalid character [" + labelChar + "] was found.");
throw new DnsServerException("Invalid domain name [" + domain + "]: invalid character [" + labelChar + "] was found.");
labelKeyCode = _keyMap[labelChar];
if (labelKeyCode == 0xff)
throw new DnsClientException("Invalid domain name [" + domain + "]: invalid character [" + labelChar + "] was found.");
throw new DnsServerException("Invalid domain name [" + domain + "]: invalid character [" + labelChar + "] was found.");
key[keyOffset++] = labelKeyCode;
}