| Date: 19 November 1999 |
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| Frequently Asked Questions about Curl |
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| 1. Problems connecting to SSL servers. |
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| 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: |
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| 16570:error:1407D071:SSL routines:SSL2_READ:bad mac decode:s2_pkt.c:233: |
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| 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). |
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| 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. |
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| 2. Does curl support resume? |
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| Yes. Both ways on FTP, download ways on HTTP. |
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| 3. Is libcurl thread safe? |
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| 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(). |
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| 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! |
