在OS X 10.7上使用gcc的OpenSSL [英] OpenSSL with gcc on OS X 10.7

问题描述

我在OS X 10.7上使用TextEdit和gcc来制作小型终端程序。我正试图学习如何编程OpenSSL，但我正在编译剧集（由于不推荐使用的问题 - 更多）。我搜索了谷歌搜索，但我所读的一切都是在2011年之前（当问题似乎出现），特定于iOS（我正在为OS X编程，但尝试独立于平台）或谈论使用XCode（我不喜欢 - 我更喜欢TextEdit）。

任何人都可以请指出一个简单的分步过程的正确方向，以了解如何安装OpenSSL程序在OS X上使用gcc？

为了记录，这是我采取的确切步骤：

• 通过macports安装的OpenSSL




• 我试图编译这个文件： http://saju.net.in/code/misc/openssl_aes.c.txt

我已重新命名为'aes.c'，我使用'gcc -o aes aes.c'



• 我尝试了下列标志（没有结果）： -lcrypto，lssl，-Wno-error = dep recated-declarations
  
  
  我从gcc获得的具体输出如下：
  
  

    Brads-MacBook-Air：桌面brad $ gcc -o aes aes.c -lssl -lcrypto -Wno-error =弃用 - 声明
   aes.c ：在函数'aes_init'中：
   aes.c：30：警告：不推荐使用'EVP_BytesToKey'（在/usr/include/openssl/evp.h:572声明）
   aes.c：30：警告：'EVP_aes_256_cbc'已弃用（在/usr/include/openssl/evp.h:786处声明）
   aes.c：30：警告：'EVP_sha1'已弃用（在/ usr / include / openssl / evp.h：666）
   aes.c：36：警告：'EVP_CIPHER_CTX_init'已弃用（在/usr/include/openssl/evp.h:636处声明）
   aes.c：37：警告：'EVP_EncryptInit_ex'已弃用（在/usr/include/openssl/evp.h:581处声明）
   aes.c：37：警告：'EVP_aes_256_cbc'已弃用（在/ usr / include / openssl / evp处声明.h：786）
   aes.c：38：警告：'EVP_CIPHER_CTX_init'已弃用（在/ usr / include / openssl声明/evp.h:636）
   aes.c：39：警告：'EVP_DecryptInit_ex'已弃用（在/usr/include/openssl/evp.h:590处声明）
   aes.c：39：警告：'EVP_aes_256_cbc'已弃用（在/usr/include/openssl/evp.h:786处声明）
   aes.c：函数'aes_encrypt'：
   aes.c：51：错误：'' AES_BLOCK_SIZE'未声明（在此函数中首次使用）
   aes.c：51：错误:(每个未声明的标识符只报告一次
   aes.c：51：错误： 
   aes.c：55：警告：不推荐使用'EVP_EncryptInit_ex'（在/usr/include/openssl/evp.h:581处声明）
   aes.c：59：警告：'EVP_EncryptUpdate'已弃用（在/usr/include/openssl/evp.h:583处声明）
   aes.c：62：警告：'EVP_EncryptFinal_ex'已弃用（在/usr/include/openssl/evp.h:584处声明）
   aes.c：在函数'aes_decrypt'中：
   aes.c：75：错误：'AES_BLOCK_SIZE'未声明（首次在此函数中使用）
   aes.c：77：warning：'EVP_DecryptInit_ex '已弃用（声明d位于/usr/include/openssl/evp.h:590）
   aes.c：78：警告：'EVP_DecryptUpdate'已弃用（在/usr/include/openssl/evp.h:592处声明）
   aes.c：79：警告：'EVP_DecryptFinal_ex'已被弃用（在/usr/include/openssl/evp.h:594处声明）
   aes.c：在函数'main'中：
   aes .c：136：警告：不推荐使用'EVP_CIPHER_CTX_cleanup'（在/usr/include/openssl/evp.h:637声明）
   aes.c：137：警告：'EVP_CIPHER_CTX_cleanup'已弃用（在/ usr处声明） /include/openssl/evp.h:637）
    

  
  

  解决方案

  弃用警告只是警告，可以忽略。真正的问题是，编译器无法看到 AES_BLOCK_SIZE 宏的声明，该宏定义为 aes.h 。因此，您需要向源代码中添加 #include< openssl / aes.h> 。

  
  
  

  您还需要包含 -lcrypto 链接器标志以链接到OpenSSL运行时库;否则，你会得到一堆未定义的参考错误。

  
  

  I use TextEdit and gcc on OS X 10.7 to make small terminal programs. I'm trying to learn how to program OpenSSL, but I'm having dramas compiling (due to the deprecated issue - more below). I've Googled and searched on SO but everything I read is either pre-2011 (when the issue seemed to appear), specific to iOS (I'm programming for OS X but trying to be platform independent) or talks about using XCode (which I don't - I prefer TextEdit).

  Can anyone please point in the right direction of a simple, step-by-step process for how to install an OpenSSL program on OS X using gcc?

  For the record, this is the exact steps I have taken:

  • OpenSSL installed via macports

  • 'openssl version' returns "OpenSSL 1.0.1e 11 Feb 2013"

  • I'm trying to compile this file: http://saju.net.in/code/misc/openssl_aes.c.txt

  • I've renamed to 'aes.c' and I'm using 'gcc -o aes aes.c'

  • I've tried the following flags (for no result): -lcrypto, lssl, -Wno-error=deprecated-declarations

  The specific output I get from gcc is the following:

  Brads-MacBook-Air:Desktop brad$ gcc -o aes aes.c -lssl -lcrypto -Wno-error=deprecated-declarations
  aes.c: In function ‘aes_init’:
  aes.c:30: warning: ‘EVP_BytesToKey’ is deprecated (declared at /usr/include/openssl/evp.h:572)
  aes.c:30: warning: ‘EVP_aes_256_cbc’ is deprecated (declared at /usr/include/openssl/evp.h:786)
  aes.c:30: warning: ‘EVP_sha1’ is deprecated (declared at /usr/include/openssl/evp.h:666)
  aes.c:36: warning: ‘EVP_CIPHER_CTX_init’ is deprecated (declared at /usr/include/openssl/evp.h:636)
  aes.c:37: warning: ‘EVP_EncryptInit_ex’ is deprecated (declared at /usr/include/openssl/evp.h:581)
  aes.c:37: warning: ‘EVP_aes_256_cbc’ is deprecated (declared at /usr/include/openssl/evp.h:786)
  aes.c:38: warning: ‘EVP_CIPHER_CTX_init’ is deprecated (declared at /usr/include/openssl/evp.h:636)
  aes.c:39: warning: ‘EVP_DecryptInit_ex’ is deprecated (declared at /usr/include/openssl/evp.h:590)
  aes.c:39: warning: ‘EVP_aes_256_cbc’ is deprecated (declared at /usr/include/openssl/evp.h:786)
  aes.c: In function ‘aes_encrypt’:
  aes.c:51: error: ‘AES_BLOCK_SIZE’ undeclared (first use in this function)
  aes.c:51: error: (Each undeclared identifier is reported only once
  aes.c:51: error: for each function it appears in.)
  aes.c:55: warning: ‘EVP_EncryptInit_ex’ is deprecated (declared at /usr/include/openssl/evp.h:581)
  aes.c:59: warning: ‘EVP_EncryptUpdate’ is deprecated (declared at /usr/include/openssl/evp.h:583)
  aes.c:62: warning: ‘EVP_EncryptFinal_ex’ is deprecated (declared at /usr/include/openssl/evp.h:584)
  aes.c: In function ‘aes_decrypt’:
  aes.c:75: error: ‘AES_BLOCK_SIZE’ undeclared (first use in this function)
  aes.c:77: warning: ‘EVP_DecryptInit_ex’ is deprecated (declared at /usr/include/openssl/evp.h:590)
  aes.c:78: warning: ‘EVP_DecryptUpdate’ is deprecated (declared at /usr/include/openssl/evp.h:592)
  aes.c:79: warning: ‘EVP_DecryptFinal_ex’ is deprecated (declared at /usr/include/openssl/evp.h:594)
  aes.c: In function ‘main’:
  aes.c:136: warning: ‘EVP_CIPHER_CTX_cleanup’ is deprecated (declared at /usr/include/openssl/evp.h:637)
  aes.c:137: warning: ‘EVP_CIPHER_CTX_cleanup’ is deprecated (declared at /usr/include/openssl/evp.h:637)
  

  解决方案

  The deprecation warnings are just that, warnings, and can be ignored. The real problem is that the compiler can't see the declaration of the AES_BLOCK_SIZE macro, which is defined to aes.h. So you need to add a #include <openssl/aes.h> to your source code.

  You'll also need to include the -lcrypto linker flag to link against the OpenSSL runtime library; otherwise, you'll get a bunch of "undefined reference" errors.

  这篇关于在OS X 10.7上使用gcc的OpenSSL的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！