無法將C++項目與openssl靜態庫鏈接

Question

我在C++上完成了一些項目，我需要爲Windows XP和更高版本編譯它。

這是我的RsaEncryptor類的頭文件（我認爲無論在這裏發佈源代碼，因爲我確定100％可以正常工作，但是如果需要的話，我可以這樣做）：

#ifndef RSAENCRYPTOR_H_ 
#define RSAENCRYPTOR_H_ 

#include <stdexcept> 
#include <openssl/rsa.h> 
#include <openssl/engine.h> 
#include <openssl/pem.h> 

// One of this paddings can be used 
//#define PADDING RSA_PKCS1_OAEP_PADDING 
#define PADDING RSA_PKCS1_PADDING 
//#define PADDING RSA_NO_PADDING 

class RsaEncryptor { 

private: 

    RSA* publicKey; 
    RSA* privateKey; 

public: 

    RsaEncryptor() { 
     publicKey = nullptr; 
     privateKey = nullptr; 
    } 

    ~RsaEncryptor() { 
     if (this->publicKey) 
      RSA_free(this->publicKey); 
     if (this->privateKey) 
      RSA_free(this->privateKey); 
    } 

    size_t GetCipherBytesCount() { 
     return 172; //is default for 1024 bit key length 
    } 

    void SetPublicKeyFromString(const std::string& content); 
    void SetPrivateKeyFromString(const std::string& content); 

    std::string Encrypt(const std::string& plainData); 
    std::string Decrypt(const std::string& cipherData); 

}; 


#endif /* RSAENCRYPTOR_H_ */ 

我使用最新版本的Eclipse Neon進行C++開發，在Windows 10 x64機器上。

而且我已閱讀this：

(...) you will need to configure with no-async when building OpenSSL 1.1.0 and above for Windows XP or Vista

，我被following指令制導。

我做了什麼：

1. 安裝Ubuntu 17.04 x64虛擬盒裏面Windows 10 x64下。從Ubuntu

2. OpenSSL庫的

3. 下載最新版本安裝mxe和所有要求（但不能與它編譯和我決定使用mingw32）

4. 通過root@user-pc:/home/user# apt-get install gcc-mingw-w64-i686

安裝 mingw32

5. 解壓OpenSSL庫/home/user/openssl-x32

6. 去/home/user/openssl-x32

7. 運行./Configure mingw --cross-compile-prefix=i686-w64-mingw32 --prefix=/home/user/builds/openssl-x32-static no-shared no-async

8. 運行make

9. 運行make install

10. 副本libssl.a和libcrypto.a從/home/user/builds/openssl-x32-static/lib主辦機（Windows 10 x64）到文件夾E:\MyProjects\my-app\libraries\

11. 複製include目錄從Ubuntu文件夾主辦機E:\MyProjects\my-app\include

12. libraries文件夾添加到鏈接器配置

13. 添加include文件夾編譯器配置

14. 然後，我建我的項目，得到了以下回答：

11:58:09 **** Rebuild of configuration Debug for project app **** Info: Configuration "Debug" uses tool-chain "MinGW GCC" that is unsupported on this system, attempting to build anyway. Info: Internal Builder is used for build g++ "-IC:\MyProjects\my-app\include" -O0 -g3 -Wall -c -std=c++11 -m32 -o RsaEncryptor.o "..\RsaEncryptor.cpp" g++ "-IC:\MyProjects\my-app\include" -O0 -g3 -Wall -c -std=c++11 -m32 -o main.o "..\main.cpp" In file included from ..\main.cpp:5:0: ..\FilesFinder.h: In member function 'void FilesFinder::FindRecursively(const string&, const FilesFilter&)': ..\FilesFinder.h:90:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (destinationContainer.GetElementsCount() >= MAX_ELEMENTS_COUNT) { ^g++ "-IC:\MyProjects\my-app\include" -O0 -g3 -Wall -c -std=c++11 -m32 -o aes256.o "..\aes256.cpp" g++ "-LC:\MyProjects\my-app\libraries" -static-libgcc -static-libstdc++ -static -lpthread -m32 -o C:/MyProjects/my-app/bin/Debug/app RsaEncryptor.o aes256.o main.o -lssl -lcrypto -lgdi32 C:\MyProjects\my-app\libraries\libcrypto.a(b_addr.o):b_addr.c:(.text+0xaa): undefined reference to _imp__getnameinfo@28' C:\MyProjects\my-app\libraries\libcrypto.a(b_addr.o):b_addr.c:(.text+0xe0): undefined reference to _imp__ntohs@4' C:\MyProjects\my-app\libraries\libcrypto.a(b_addr.o):b_addr.c:(.text+0x242): undefined reference to gai_strerrorW' C:\MyProjects\my-app\libraries\libcrypto.a(b_addr.o):b_addr.c:(.text+0x820): undefined reference to _imp__freeaddrinfo@4' C:\MyProjects\my-app\libraries\libcrypto.a(b_addr.o):b_addr.c:(.text+0xb5d): undefined reference to _imp__getaddrinfo@16' C:\MyProjects\my-app\libraries\libcrypto.a(b_addr.o):b_addr.c:(.text+0xba2): undefined reference to gai_strerrorW' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0xd7): undefined reference to _imp__WSAStartup@8' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0xe8): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x2c7): undefined reference to _imp__WSAStartup@8' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x2d8): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x3b1): undefined reference to _imp__ntohs@4' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x40c): undefined reference to _imp__getsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x423): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x43c): undefined reference to _imp__gethostbyname@4' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x48b): undefined reference to _imp__WSAStartup@8' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x4a2): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x52c): undefined reference to _imp__WSACleanup@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x54d): undefined reference to _imp__ioctlsocket@12' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x563): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x6b7): undefined reference to _imp__WSAStartup@8' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x6c8): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x942): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0x9dc): undefined reference to _imp__setsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0xa15): undefined reference to _imp__ioctlsocket@12' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0xa32): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0xaa6): undefined reference to _imp__getsockname@12' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock.o):b_sock.c:(.text+0xb22): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x27): undefined reference to _imp__socket@12' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x4e): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x120): undefined reference to _imp__setsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x15b): undefined reference to _imp__connect@12' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x1f5): undefined reference to _imp__setsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x206): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x265): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x2c6): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x377): undefined reference to _imp__getsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x38f): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x4a7): undefined reference to _imp__setsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x4b4): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x53a): undefined reference to _imp__bind@12' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x55f): undefined reference to _imp__listen@8' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x5a5): undefined reference to _imp__setsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x5b6): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x63a): undefined reference to _imp__setsockopt@20' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x64b): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x6b2): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x713): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x7a6): undefined reference to _imp__accept@12' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x7e7): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x84b): undefined reference to _imp__closesocket@4' C:\MyProjects\my-app\libraries\libcrypto.a(b_sock2.o):b_sock2.c:(.text+0x86c): undefined reference to _imp__closesocket@4' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x1b1): undefined reference to _imp__WSASetLastError@4' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x1d0): undefined reference to _imp__send@16' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x20a): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x272): undefined reference to _imp__WSASetLastError@4' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x299): undefined reference to _imp__send@16' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x2ca): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x33d): undefined reference to _imp__WSASetLastError@4' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x360): undefined reference to _imp__recv@16' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x39a): undefined reference to _imp__WSAGetLastError@0' C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o):bss_sock.c:(.text+0x457): undefined reference to _imp__WSAGetLastError@0' c:/programs/mingw_w64_mingw32_gcc_stdthread_win32/bin/../lib/gcc/i686-w64-mingw32/4.8.1/../../../../i686-w64-mingw32/bin/ld.exe: C:\MyProjects\my-app\libraries\libcrypto.a(bss_sock.o): bad reloc address 0x24 in section .rdata' c:/programs/mingw_w64_mingw32_gcc_stdthread_win32/bin/../lib/gcc/i686-w64-mingw32/4.8.1/../../../../i686-w64-mingw32/bin/ld.exe: final link failed: Invalid operation collect2.exe: error: ld returned 1 exit status

11:58:21 Build Finished (took 11s.567ms)

我只需要將我完成的C++項目與正確編譯的（帶有標記no-async）的OpenSSL庫鏈接起來，讓它可以在舊版本的Windows下工作。

我很樂意爲您解答此問題。

Answer 1

錯誤日誌中大部分（如果不是全部）未定義的符號都來自Winsock。嘗試鏈接-lws2_32。