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known bug #83

From: Дмитрий Фалько <>
Date: Mon, 02 Jun 2014 14:23:01 +0400

 Hi all!

curl is unable to load non-default openssl engines, because openssl isn't
initialized properly. This seems to require OpenSSL_config() or
CONF_modules_load_file() to be used by libcurl but the first seems to not
work and we've gotten not reports from tests with the latter. Possibly we
need to discuss with OpenSSL developers how this is supposed to be done. We
need users with actual external openssl engines for testing to work on this.

I try to add OpenSSL_config(NULL) in openssl backeend initialization code and it work perfectly
for on Ubuntu 12.04(x86_64) and armv5te(old OMAP). So seems that "but the first seems to not work"
is not correct.


OpenSSL 1.0.1 14 Mar 2012
built on: Fri May 2 20:24:44 UTC 2014
platform: debian-amd64
options: bn(64,64) rc4(16x,int) des(idx,cisc,16,int) blowfish(idx)
-fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wa,
OPENSSLDIR: "/usr/lib/ssl"

curl 7.37.0-DEV (x86_64-unknown-linux-gnu) libcurl/7.37.0-DEV OpenSSL/1.0.1 zlib/
Protocols: dict file ftp ftps gopher http https imap imaps pop3 pop3s rtsp smtp smtps telnet tftp
Features: IPv6 Largefile NTLM NTLM_WB SSL libz TLS-SRP

Best Regards, Dmitry!

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Received on 2014-06-02