无法链接 OpenSSL 代码 [英] Can't link OpenSSL code
本文介绍了无法链接 OpenSSL 代码的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试构建一个 openssl 简单程序.完整代码如下:
I am trying to build an openssl simple program. Here is the complete code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "openssl/aes.h"
int main(int argc, char* argv[])
{
AES_KEY aesKey_;
unsigned char userKey_[16];
unsigned char in_[16];
unsigned char out_[16];
strcpy(userKey_,"0123456789123456");
strcpy(in_,"0123456789123456");
fprintf(stdout,"Original message: %s", in_);
AES_set_encrypt_key(userKey_, 128, &aesKey_);
AES_encrypt(in_, out_, &aesKey_);
AES_set_decrypt_key(userKey_, 128, &aesKey_);
AES_decrypt(out_, in_,&aesKey_);
fprintf(stdout,"Recovered Original message: %s", in_);
return 0;
}
我尝试使用以下命令编译它:
I try to compile it using this command:
gcc -I/home/aleksei/openSSL0.9.8/include -o app -L . -lssl -lcrypto tema1.c
我明白了:
/tmp/ccT1XMid.o: In function `main':
tema1.c:(.text+0x8d): undefined reference to `AES_set_encrypt_key'
tema1.c:(.text+0xa7): undefined reference to `AES_encrypt'
tema1.c:(.text+0xbf): undefined reference to `AES_set_decrypt_key'
tema1.c:(.text+0xd9): undefined reference to `AES_decrypt'
collect2: ld returned 1 exit status
我使用的是 Ubuntu 10.04.我怎样才能让它工作?
I am under Ubuntu 10.04. How can I get this to work ?
推荐答案
您可能正在尝试静态链接,但 -L
选项和 -lcrypto
正在寻找要动态链接的文件.要静态链接到特定库,只需在编译器命令行上指定所有源文件之后的 .a
文件即可.
You may be trying to statically link, but the -L
option and -lcrypto
are looking for a file to link with dynamically. To statically link to a specific library, just specify your .a
file on the compiler command line after all your source files.
例如,
gcc -I/home/aleksei/openSSL0.9.8/include -o app tema1.c ./libcrypto.a
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