32 lines
1.2 KiB
Plaintext
32 lines
1.2 KiB
Plaintext
|
Date: 19 November 1999
|
||
|
|
|
||
|
|
Frequently Asked Questions about Curl
|
||
|
|
|
||
|
|
1. Problems connecting to SSL servers.
|
||
|
|
|
||
|
|
It took a very long time before I could sort out why curl had problems
|
||
|
|
to connect to certain SSL servers when using SSLeay or OpenSSL v0.9+.
|
||
|
|
The error sometimes showed up similar to:
|
||
|
|
|
||
|
|
16570:error:1407D071:SSL routines:SSL2_READ:bad mac decode:s2_pkt.c:233:
|
||
|
|
|
||
|
|
It turned out to be because many older SSL servers don't deal with SSLv3
|
||
|
|
requests properly. To correct this problem, tell curl to select SSLv2 from
|
||
|
|
the command line (-2/--sslv2).
|
||
|
|
|
||
|
|
I have also seen examples where the remote server didn't like the SSLv2
|
||
|
|
request and instead you had to force curl to use SSLv3 with -3/--sslv3.
|
||
|
|
|
||
|
|
2. Does curl support resume?
|
||
|
|
|
||
|
|
Yes. Both ways on FTP, download ways on HTTP.
|
||
|
|
|
||
|
|
3. Is libcurl thread safe?
|
||
|
|
|
||
|
|
Yes, as far as curl's own code goes. It does use system calls that often
|
||
|
|
aren't thread safe in most environments, such as gethostbyname().
|
||
|
|
|
||
|
|
I am very interested in once and for all getting some kind of report or
|
||
|
|
README file from those who have used libcurl in a threaded environment,
|
||
|
|
since I haven't and I get this question more and more frequently!
|