1 files changed, 5 insertions, 5 deletions
diff --git a/src/metainfo.zig b/src/metainfo.zig
index 31b14b7..29cc655 100644
--- a/src/metainfo.zig
+++ b/src/metainfo.zig
@@ -103,16 +103,14 @@ pub const Info = struct {
         a.free(self.files);
     }
 
-    const info_hash_len = 40;
+    const info_hash_len = std.crypto.hash.Sha1.digest_length;
     pub fn hash(self: Info, a: std.mem.Allocator) ![info_hash_len]u8 {
         var b = try self.encode(a);
         defer b.deinit(a);
         var sha1 = std.crypto.hash.Sha1.init(.{});
         var w = sha1.writer();
         try b.bencode(w);
-        var buf = [_]u8{0} ** info_hash_len;
-        _ = std.fmt.bufPrint(&buf, "{}", .{std.fmt.fmtSliceHexLower(&sha1.finalResult())}) catch unreachable;
-        return buf;
+        return sha1.finalResult();
     }
 };
 
@@ -162,5 +160,7 @@ test "info hash" {
     var mi = try MetaInfo.parse(a, b);
     defer mi.deinit(a);
     const hash = try mi.info.hash(a);
-    try std.testing.expectEqualStrings("d69f91e6b2ae4c542468d1073a71d4ea13879a7f", &hash);
+    var hash_hex = try std.fmt.allocPrint(a, "{s}", .{std.fmt.fmtSliceHexLower(&hash)});
+    defer a.free(hash_hex);
+    try std.testing.expectEqualStrings("d69f91e6b2ae4c542468d1073a71d4ea13879a7f", hash_hex);
 }