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authorMistivia <i@mistivia.com>2025-11-02 15:27:18 +0800
committerMistivia <i@mistivia.com>2025-11-02 15:27:18 +0800
commite9c24f4af7ed56760f6db7941827d09f6db9020b (patch)
tree62128c43b883ce5e3148113350978755779bb5de /teleirc/matterbridge/vendor/github.com/gorilla/websocket/mask.go
parent58d5e7cfda4781d8a57ec52aefd02983835c301a (diff)
add matterbridge
Diffstat (limited to 'teleirc/matterbridge/vendor/github.com/gorilla/websocket/mask.go')
-rw-r--r--teleirc/matterbridge/vendor/github.com/gorilla/websocket/mask.go55
1 files changed, 55 insertions, 0 deletions
diff --git a/teleirc/matterbridge/vendor/github.com/gorilla/websocket/mask.go b/teleirc/matterbridge/vendor/github.com/gorilla/websocket/mask.go
new file mode 100644
index 0000000..d0742bf
--- /dev/null
+++ b/teleirc/matterbridge/vendor/github.com/gorilla/websocket/mask.go
@@ -0,0 +1,55 @@
+// Copyright 2016 The Gorilla WebSocket Authors. All rights reserved. Use of
+// this source code is governed by a BSD-style license that can be found in the
+// LICENSE file.
+
+//go:build !appengine
+// +build !appengine
+
+package websocket
+
+import "unsafe"
+
+const wordSize = int(unsafe.Sizeof(uintptr(0)))
+
+func maskBytes(key [4]byte, pos int, b []byte) int {
+ // Mask one byte at a time for small buffers.
+ if len(b) < 2*wordSize {
+ for i := range b {
+ b[i] ^= key[pos&3]
+ pos++
+ }
+ return pos & 3
+ }
+
+ // Mask one byte at a time to word boundary.
+ if n := int(uintptr(unsafe.Pointer(&b[0]))) % wordSize; n != 0 {
+ n = wordSize - n
+ for i := range b[:n] {
+ b[i] ^= key[pos&3]
+ pos++
+ }
+ b = b[n:]
+ }
+
+ // Create aligned word size key.
+ var k [wordSize]byte
+ for i := range k {
+ k[i] = key[(pos+i)&3]
+ }
+ kw := *(*uintptr)(unsafe.Pointer(&k))
+
+ // Mask one word at a time.
+ n := (len(b) / wordSize) * wordSize
+ for i := 0; i < n; i += wordSize {
+ *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&b[0])) + uintptr(i))) ^= kw
+ }
+
+ // Mask one byte at a time for remaining bytes.
+ b = b[n:]
+ for i := range b {
+ b[i] ^= key[pos&3]
+ pos++
+ }
+
+ return pos & 3
+}