From 78e616ab73e3d3f20b5e148ac551c0056ef76651 Mon Sep 17 00:00:00 2001
From: Natalia Portillo <claunia@claunia.com>
Date: Mon, 9 Oct 2017 12:54:46 +0100
Subject: [PATCH] Added support for AAIP extensions to ISO9660.

---
 DiscImageChef.Filesystems/ISO9660/Consts.cs | 8 ++++++++
 DiscImageChef.Filesystems/ISO9660/Info.cs   | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/DiscImageChef.Filesystems/ISO9660/Consts.cs b/DiscImageChef.Filesystems/ISO9660/Consts.cs
index 6509dd3f1..f4f1fdfb8 100644
--- a/DiscImageChef.Filesystems/ISO9660/Consts.cs
+++ b/DiscImageChef.Filesystems/ISO9660/Consts.cs
@@ -64,6 +64,8 @@ namespace DiscImageChef.Filesystems.ISO9660
         const ushort ziso_Magic = 0x5A46; // "ZF"
         const ushort ziso_PagedZlib = 0x707A; // "pz"
         const ushort Amiga_Magic = 0x4153; // "AS"
+        const ushort AAIP_Magic = 0x414C; // "AL"
+        const ushort AAIP_OldMagic = 0x4141; // "AA"
 
         [Flags]
         enum FileFlags : byte
@@ -267,5 +269,11 @@ namespace DiscImageChef.Filesystems.ISO9660
             Script = 1 << 6,
             Reserved = 1 << 7,
         }
+
+        [Flags]
+        enum AAIPFlags : byte
+        {
+            Continue = 1
+        }
     }
 }
diff --git a/DiscImageChef.Filesystems/ISO9660/Info.cs b/DiscImageChef.Filesystems/ISO9660/Info.cs
index 035869322..8b520fa7e 100644
--- a/DiscImageChef.Filesystems/ISO9660/Info.cs
+++ b/DiscImageChef.Filesystems/ISO9660/Info.cs
@@ -259,6 +259,7 @@ namespace DiscImageChef.Filesystems.ISO9660
             bool RRIP = false;
             bool ziso = false;
             bool Amiga = false;
+            bool AAIP = false;
             List<ContinuationArea> contareas = new List<ContinuationArea>();
             List<byte[]> refareas = new List<byte[]>();
             StringBuilder suspInformation = new StringBuilder();
@@ -380,6 +381,7 @@ namespace DiscImageChef.Filesystems.ISO9660
 
                                 ziso |= nextSignature == ziso_Magic;
                                 Amiga |= nextSignature == Amiga_Magic;
+                                AAIP |= nextSignature == AAIP_Magic || (nextSignature == AAIP_OldMagic && sa[sa_off + 3] == 1 && sa[sa_off + 2] >= 9);
 
                                 sa_off += sa[sa_off + 2];
 
@@ -438,6 +440,7 @@ namespace DiscImageChef.Filesystems.ISO9660
 
                     ziso |= nextSignature == ziso_Magic;
                     Amiga |= nextSignature == Amiga_Magic;
+                    AAIP |= nextSignature == AAIP_Magic || (nextSignature == AAIP_OldMagic && ca_data[ca_off + 3] == 1 && ca_data[ca_off + 2] >= 9);
 
                     ca_off += ca_data[ca_off + 2];
                 }
@@ -480,6 +483,8 @@ namespace DiscImageChef.Filesystems.ISO9660
                 ISOMetadata.AppendLine("System Use Sharing Protocol present.");
             if(RRIP)
                 ISOMetadata.AppendLine("Rock Ridge Interchange Protocol present.");
+            if(AAIP)
+                ISOMetadata.AppendLine("Arbitrary Attribute Interchange Protocol present.");
             if(ziso)
                 ISOMetadata.AppendLine("zisofs compression present.");
             if(bvd != null)