Tar: Fix permissions (owner should have write permission)

The owner needs write permission to be able to delete the files after unpacking the archive.

Author: euanh

Sources/Tar/tar.swift

@@ -419,14 +419,14 @@ extension Archive {
     /// - prefix: Path prefix
     /// - data: File contents
     public func appendFile(name: String, prefix: String = "", data: [UInt8]) throws {
-        try append(.init(header: .init(name: name, size: data.count, prefix: prefix), data: data))
+        try append(.init(header: .init(name: name, mode: 0o755, size: data.count, prefix: prefix), data: data))
     }
 
     /// Adds a new directory member at the end of the archive
     /// parameters:
     /// - name: Directory name
     /// - prefix: Path prefix
     public func appendDirectory(name: String, prefix: String = "") throws {
-        try append(.init(header: .init(name: name, typeflag: .DIRTYPE, prefix: prefix)))
+        try append(.init(header: .init(name: name, mode: 0o755, typeflag: .DIRTYPE, prefix: prefix)))
     }
 }

Tests/TarTests/TarUnitTests.swift

@@ -277,7 +277,7 @@ let trailer = [UInt8](repeating: 0, count: trailerSize)
         0, 0, 0, 0,
 
         // mode: 8 bytes
-        48, 48, 48, 53, 53, 53, 32, 0,
+        48, 48, 48, 55, 53, 53, 32, 0,
 
         // uid: 8 bytes
         48, 48, 48, 48, 48, 48, 32, 0,
@@ -292,7 +292,7 @@ let trailer = [UInt8](repeating: 0, count: trailerSize)
         48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,
 
         // chksum: 8 bytes
-        48, 49, 49, 48, 55, 53, 0, 32,
+        48, 49, 49, 48, 55, 55, 0, 32,
 
         // typeflag: 1 byte
         48,
@@ -360,7 +360,7 @@ let trailer = [UInt8](repeating: 0, count: trailerSize)
             0, 0, 0, 0,
 
             // mode: 8 bytes
-            48, 48, 48, 53, 53, 53, 32, 0,
+            48, 48, 48, 55, 53, 53, 32, 0,
 
             // uid: 8 bytes
             48, 48, 48, 48, 48, 48, 32, 0,
@@ -375,7 +375,7 @@ let trailer = [UInt8](repeating: 0, count: trailerSize)
             48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,
 
             // chksum: 8 bytes
-            48, 49, 49, 48, 52, 55, 0, 32,
+            48, 49, 49, 48, 53, 49, 0, 32,
 
             // typeflag: 1 byte
             48,
@@ -476,7 +476,7 @@ let trailer = [UInt8](repeating: 0, count: trailerSize)
         0, 0, 0, 0,
 
         // mode: 8 bytes
-        48, 48, 48, 53, 53, 53, 32, 0,
+        48, 48, 48, 55, 53, 53, 32, 0,
 
         // uid: 8 bytes
         48, 48, 48, 48, 48, 48, 32, 0,
@@ -491,7 +491,7 @@ let trailer = [UInt8](repeating: 0, count: trailerSize)
         48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,
 
         // chksum: 8 bytes
-        48, 49, 50, 51, 50, 54, 0, 32,
+        48, 49, 50, 51, 51, 48, 0, 32,
 
         // typeflag: 1 byte
         53,