41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
Date: 15 March 2000
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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
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to connect to certain SSL servers when using SSLeay or OpenSSL v0.9+.
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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
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requests properly. To correct this problem, tell curl to select SSLv2 from
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the command line (-2/--sslv2).
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I have also seen examples where the remote server didn't like the SSLv2
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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
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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
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README file from those who have used libcurl in a threaded environment,
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since I haven't and I get this question more and more frequently!
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4. Why doesn't my posting using -F work?
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You can't simply use -F or -d at your choice. The web server that will
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receive your post assumes one of the formats. If the form you're trying to
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"fake" sets the type to 'multipart/form-data', than and only then you must
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use the -F type. In all the most common cases, you should use -d which then
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causes a posting with the type 'application/x-www-form-urlencoded'.
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