Hi All,I am very new to the curl library. So pardon me if my question is too
basic. Can you please help me to understand why below mentioned problem is
coming? And how to solve this problem ??Earlier a 32 bit c++ application was
using curl-7.20.1 and there was no problem while connecting with the SSL
enabled device over HTTPS. But when library is upgraded to libcurl-7.61.1 c++
application is getting few strange errors while working with new curl library
though there is no change in the application source code or certificate. In the
logs I am getting following error strings.TLSv1.2 (IN), TLS handshake, Finished
(20):SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384ALPN, server did
not agree to a protocolSSL certificate verify result: unable to get local
issuer certificate (20), continuing anyway.But in previous case I am getting
following things in log and there was no such protocol disagreement
message.skipping SSL peer certificate verificationSSL connection using T!
LS_ECDHE_RSA_WITH_AES_256_GCM_SHA384Following options seems to be relevant and
set by using curl_easy_setopt
call.CURLOPT_SSL_VERIFYPEER
set to
0CURLOPT_SSL_VERIFYHOST
set to
0CURLOPT_CAPATH
set to
0CURLOPT_ENCODING
gzipCURLOPT_CAINFO
supplied a pem certificate file . Same certificate file was also used earlier
but there was no error.CURLOPT_USERAGENT,&nbs!
p;
"libcurl-agent/1.0"Below options are also set via curl_easy_setopt
call.CURLOPT_POSTFIELDS , CURLOPT_POSTFIELDSIZE_LARGE , CURLOPT_HTTPHEADER ,
CURLOPT_DEBUGFUNCTION , CURLOPT_PRIVATE, CURLOPT_WRITEFUNCTION ,
CURLOPT_WRITEDATA , CURLOPT_ERRORBUFFERBelow options are set via
curl_multi_setopt call.CURLMOPT_SOCKETFUNCTION , CURLMOPT_SOCKETDATA ,
CURLMOPT_TIMERFUNCTION , CURLMOPT_TIMERDATA , CURLMOPT_MAXCONNECTS ,
CURLMOPT_PIPELININGThere was no curl_easy_perform call in the code.ThanksSubrata
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