mirror of
https://github.com/mautrix/signal.git
synced 2026-05-15 05:36:53 -04:00
55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
// mautrix-signal - A Matrix-signal puppeting bridge.
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// Copyright (C) 2023 Sumner Evans
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package libsignalgo
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/*
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#include "./libsignal-ffi.h"
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*/
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import "C"
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import "unsafe"
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func CopyCStringToString(cString *C.char) (s string) {
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s = C.GoString(cString)
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C.signal_free_string(cString)
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return
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}
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func CopyBufferToBytes(buffer *C.uchar, length C.size_t) (b []byte) {
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b = C.GoBytes(unsafe.Pointer(buffer), C.int(length))
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C.signal_free_buffer(buffer, length)
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return
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}
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func CopySignalOwnedBufferToBytes(buffer C.SignalOwnedBuffer) (b []byte) {
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b = C.GoBytes(unsafe.Pointer(buffer.base), C.int(buffer.length))
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C.signal_free_buffer(buffer.base, buffer.length)
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return
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}
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func CopySignalBytestringArray[T ~[]byte](buffer C.SignalBytestringArray) (b []T) {
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concatted := C.GoBytes(unsafe.Pointer(buffer.bytes.base), C.int(buffer.bytes.length))
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b = make([]T, int(buffer.lengths.length))
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sizeTSize := unsafe.Sizeof(C.size_t(0))
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offset := 0
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for i := 0; i < int(buffer.lengths.length); i++ {
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length := int(*(*C.size_t)(unsafe.Add(unsafe.Pointer(buffer.lengths.base), uintptr(i)*sizeTSize)))
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b[i] = concatted[offset : offset+length]
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offset += length
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}
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C.signal_free_bytestring_array(buffer)
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return
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}
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