|  | /* | 
|  | *  Copyright 2004 The WebRTC Project Authors. All rights reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #include "rtc_base/string_utils.h" | 
|  |  | 
|  | #include <cstddef> | 
|  | #include <cstdio> | 
|  | #include <cstring> | 
|  | #include <string> | 
|  |  | 
|  | #include "absl/strings/string_view.h" | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | size_t strcpyn(char* buffer, size_t buflen, absl::string_view source) { | 
|  | if (buflen <= 0) | 
|  | return 0; | 
|  |  | 
|  | size_t srclen = source.length(); | 
|  | if (srclen >= buflen) { | 
|  | srclen = buflen - 1; | 
|  | } | 
|  | memcpy(buffer, source.data(), srclen); | 
|  | buffer[srclen] = 0; | 
|  | return srclen; | 
|  | } | 
|  |  | 
|  | std::string ToHex(const int i) { | 
|  | char buffer[50]; | 
|  | snprintf(buffer, sizeof(buffer), "%x", i); | 
|  |  | 
|  | return std::string(buffer); | 
|  | } | 
|  |  | 
|  | }  // namespace webrtc |