1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <stdint.h>
17 #include <dlfcn.h>
18 #include <stdio.h>
19
20
21 int g_strcpyTime = 100;
22 static void *g_handle = NULL;
23
GetHandle(void)24 static void GetHandle(void)
25 {
26 if (g_handle != NULL) {
27 return;
28 }
29 #if defined(__LP64__)
30 g_handle = dlopen("/system/lib64/chipset-pub-sdk/libsec_shared.z.so", RTLD_LAZY);
31 #else
32 g_handle = dlopen("/system/lib/chipset-pub-sdk/libsec_shared.z.so", RTLD_LAZY);
33 #endif
34 }
35
strcpy_s(char * strDest,size_t destMax,const char * strSrc)36 int strcpy_s(char *strDest, size_t destMax, const char *strSrc)
37 {
38 GetHandle();
39 if (g_handle == NULL) {
40 printf("dlopen failed\n");
41 }
42 if (g_strcpyTime == 0) {
43 return -1;
44 }
45
46 static int (*func)(char *strDest, size_t destMax, const char *strSrc) = NULL;
47 if (func == NULL) {
48 func = (int (*)(char *strDest, size_t destMax, const char *strSrc))dlsym(g_handle, "strcpy_s");
49 }
50 if (func == NULL) {
51 printf("dlsym strcpy_s failed\n");
52 return -1;
53 }
54
55 return func(strDest, destMax, strSrc);
56 }