when use libucrl (c++) to code in ubuntu 16.04, then docker it to the centos 8, report this error:
[ERROR] 2023-03-13_13:33:56 line 715 curl_oper.cpp: could not reslove the host name, now execute res_init().
[ INFO] 2023-03-13_13:33:56 line 718 curl_oper.cpp: 222222
* Could not resolve host: ie-dtp-core-shenzhen-xili1-oss.sit.sf-express.com
* Closing connection 1
[ERROR] 2023-03-13_13:33:56 line 724 curl_oper.cpp: perform error ! Couldn't resolve host name
eg: line 724
when to slove this problem:
first: we use res_init(); it does not work
second: we use curl opt CURLOPT_DNS_SERVERS and CURLOPT_IPRESOLVE; it does not work
finally: we use "ldd" order to see the dependy libs, find two different between os(ubuntu and centos)
both of them are :
1) libcurl.so
2)libresolv.so
we rename the coped libs( 1)and 2) ) from ubuntu, then ues the origin of the centos , the problems solved.
标签：13,resolve,Couldn,use,strerror,host,curl,name From： https://www.cnblogs.com/rohens-hbg/p/17213857.html