未定義參考err_exit，OpenSSL中的socket編程berr_exit..etc在Ubuntu

Question

這是我第一次OpenSSL的插座程序

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首先我-g GCC編譯服務器。 ç-o服務器

，但得到這個錯誤

/usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/../../../crt1.o：功能_start': (.text+0x18): undefined reference to主' /tmp/ccxiY18C.o ：功能tcp_listen': /home/usr/Desktop/c-examples/server.c:11: undefined reference to err_exit' /home/usr/Desktop/c-examples/server.c:20：undefined reference to berr_exit' /tmp/ccxiY18C.o: In function load_dh_params'： /home/usr/Desktop/c-examples/server.c:33：undefined參考BIO_new_file' /home/usr/Desktop/c-examples/server.c:34: undefined reference to berr_exit' /home/usr/Desktop/c-examples/server.c:36：undefined reference to PEM_read_bio_DHparams' /home/usr/Desktop/c-examples/server.c:37: undefined reference to BIO_free' /home/usr/Desktop/c-examples/server.c:38：undefined reference to SSL_CTX_ctrl' /home/usr/Desktop/c-examples/server.c:39: undefined reference to berr_exit' /tmp/ccxiY18C.o：功能generate_eph_rsa_key': /home/usr/Desktop/c-examples/server.c:47: undefined reference to RSA_generate_key' /home/usr/Desktop/c-examples/server.c:49 ：未定義參照SSL_CTX_ctrl' /home/usr/Desktop/c-examples/server.c:50: undefined reference to berr_exit ' /home/usr/Desktop/c-examples/server.c:52：未定義參考`RSA_free'

然後i相GCC -g server.c編譯它 - O服務器-lssl -lcrypt

它給

/usr/lib/i386-linux-gnu/gcc/i686-linux-gnu/4.5.2/../../ .. /crt1.o：功能_start': (.text+0x18): undefined reference to主' /tmp/ccPlisKL.o：功能tcp_listen': /home/usr/Desktop/c-examples/server.c:11: undefined reference to err_e xit' /home/usr/Desktop/c-examples/server.c:20：undefined reference to berr_exit' /tmp/ccPlisKL.o: In function load_dh_params'： /home/usr/Desktop/c-examples/server.c:34：undefined reference to berr_exit' /home/usr/Desktop/c-examples/server.c:39: undefined reference to berr_exit ' /tmp/ccPlisKL.o：在功能generate_eph_rsa_key': /home/usr/Desktop/c-examples/server.c:50: undefined reference to berr_exit' collect2：LD返回1個退出狀態

我怎樣才能解決這個問題..請給我一個解決方案..

Answer 1

這是-lcrypto，不是-lcrypt。只需加上o