xref: /aosp_15_r20/external/webrtc/rtc_base/string_utils.cc (revision d9f758449e529ab9291ac668be2861e7a55c2422)
1*d9f75844SAndroid Build Coastguard Worker /*
2*d9f75844SAndroid Build Coastguard Worker  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
3*d9f75844SAndroid Build Coastguard Worker  *
4*d9f75844SAndroid Build Coastguard Worker  *  Use of this source code is governed by a BSD-style license
5*d9f75844SAndroid Build Coastguard Worker  *  that can be found in the LICENSE file in the root of the source
6*d9f75844SAndroid Build Coastguard Worker  *  tree. An additional intellectual property rights grant can be found
7*d9f75844SAndroid Build Coastguard Worker  *  in the file PATENTS.  All contributing project authors may
8*d9f75844SAndroid Build Coastguard Worker  *  be found in the AUTHORS file in the root of the source tree.
9*d9f75844SAndroid Build Coastguard Worker  */
10*d9f75844SAndroid Build Coastguard Worker 
11*d9f75844SAndroid Build Coastguard Worker #include "rtc_base/string_utils.h"
12*d9f75844SAndroid Build Coastguard Worker 
13*d9f75844SAndroid Build Coastguard Worker #include "absl/strings/string_view.h"
14*d9f75844SAndroid Build Coastguard Worker 
15*d9f75844SAndroid Build Coastguard Worker namespace rtc {
16*d9f75844SAndroid Build Coastguard Worker 
strcpyn(char * buffer,size_t buflen,absl::string_view source)17*d9f75844SAndroid Build Coastguard Worker size_t strcpyn(char* buffer, size_t buflen, absl::string_view source) {
18*d9f75844SAndroid Build Coastguard Worker   if (buflen <= 0)
19*d9f75844SAndroid Build Coastguard Worker     return 0;
20*d9f75844SAndroid Build Coastguard Worker 
21*d9f75844SAndroid Build Coastguard Worker   size_t srclen = source.length();
22*d9f75844SAndroid Build Coastguard Worker   if (srclen >= buflen) {
23*d9f75844SAndroid Build Coastguard Worker     srclen = buflen - 1;
24*d9f75844SAndroid Build Coastguard Worker   }
25*d9f75844SAndroid Build Coastguard Worker   memcpy(buffer, source.data(), srclen);
26*d9f75844SAndroid Build Coastguard Worker   buffer[srclen] = 0;
27*d9f75844SAndroid Build Coastguard Worker   return srclen;
28*d9f75844SAndroid Build Coastguard Worker }
29*d9f75844SAndroid Build Coastguard Worker 
ToHex(const int i)30*d9f75844SAndroid Build Coastguard Worker std::string ToHex(const int i) {
31*d9f75844SAndroid Build Coastguard Worker   char buffer[50];
32*d9f75844SAndroid Build Coastguard Worker   snprintf(buffer, sizeof(buffer), "%x", i);
33*d9f75844SAndroid Build Coastguard Worker 
34*d9f75844SAndroid Build Coastguard Worker   return std::string(buffer);
35*d9f75844SAndroid Build Coastguard Worker }
36*d9f75844SAndroid Build Coastguard Worker 
37*d9f75844SAndroid Build Coastguard Worker }  // namespace rtc
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