在OS X 10.7上使用gcc的OpenSSL
我在OS X 10.7上使用TextEdit和gcc来制作小型终端程序。 我正在尝试学习如何编写OpenSSL，但我正在编写剧集（由于已弃用的问题 – 更多内容）。 我已经用Google搜索并搜索了所有内容，但我读到的所有内容都是2011年之前（当问题出现时），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（我没有 – 我更喜欢TextEdit）。
任何人都可以指出如何使用gcc在OS X上安装OpenSSL程序的简单，一步一步的正确方向？
为了记录，这是我采取的确切步骤：
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通过macports安装OpenSSL
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‘openssl version’返回“OpenSSL 1.0.1e 2013年2月11日”
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我正在尝试编译此文件： http ： //saju.net.in/code/misc/openssl_aes.c.txt
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我已经改名为’aes.c’而我正在使用’gcc -o aes aes.c’
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我尝试了以下标志（没有结果）：-lcrypto，lssl，-Wno-error = deprecated-declarations
我从gcc获得的具体输出如下：
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) 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，该宏被定义为aes.h 因此，您需要在源代码中添加#include 。
您还需要包含-lcrypto链接器标志以链接OpenSSL运行时库; 否则，你会得到一堆“未定义的引用”错误。