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providing two more answers

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Daniel Stenberg 2009-06-09 09:02:39 +00:00
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docs/FAQ
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Updated: Feb 23, 2009 (http://curl.haxx.se/docs/faq.html) Updated: Jun 9, 2009 (http://curl.haxx.se/docs/faq.html)
_ _ ____ _ _ _ ____ _
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/ __| | | | |_) | | / __| | | | |_) | |
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1.9 Where do I buy commercial support for curl? 1.9 Where do I buy commercial support for curl?
1.10 How many are using curl? 1.10 How many are using curl?
1.11 Why don't you update ca-bundle.crt 1.11 Why don't you update ca-bundle.crt
1.12 I have a problem who can I chat with?
2. Install Related Problems 2. Install Related Problems
2.1 configure doesn't find OpenSSL even when it is installed 2.1 configure doesn't find OpenSSL even when it is installed
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5.12 Can I make libcurl fake or hide my real IP address? 5.12 Can I make libcurl fake or hide my real IP address?
5.13 How do I stop an ongoing transfer? 5.13 How do I stop an ongoing transfer?
5.14 Using C++ non-static functions for callbacks? 5.14 Using C++ non-static functions for callbacks?
5.15 How do I get an FTP directory listing?
6. License Issues 6. License Issues
6.1 I have a GPL program, can I use the libcurl library? 6.1 I have a GPL program, can I use the libcurl library?
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Firefox (by running 'make ca-bundle), or by using our online service setup Firefox (by running 'make ca-bundle), or by using our online service setup
for this purpose: http://curl.haxx.se/docs/caextract.html for this purpose: http://curl.haxx.se/docs/caextract.html
1.12 I have a problem who can I chat with?
There's a bunch of friendly people hanging out in the #curl channel on the
IRC network irc.freenode.net. If you're polite and nice, chances are big
that you can get -- or provide -- help instantly.
2. Install Related Problems 2. Install Related Problems
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curl_easy_setopt(hcurl, CURLOPT_WRITEFUNCTION, YourClass:staticFunction); curl_easy_setopt(hcurl, CURLOPT_WRITEFUNCTION, YourClass:staticFunction);
curl_easy_setopt(hcurl, CURLOPT_WRITEDATA, this); curl_easy_setopt(hcurl, CURLOPT_WRITEDATA, this);
5.15 How do I get an FTP directory listing?
If you end the FTP URL you request with a slash, libcurl will provide you
with a directory listing of that given directory. You can also set
CURLOPT_CUSTOMREQUEST to alter what exact listing command libcurl would use
to list the files.
The follow-up question that tend to follow the previous one, is how a
program is supposed to parse the directory listing. How does it know what's
a file and what's a dir and what's a symlink etc. The harsh reality is that
FTP provides no such fine and easy-to-parse output. The output format FTP
servers respond to LIST commands are entirely at the server's own liking and
the NLST output doesn't reveal any types and in many cases don't even
include all the directory entries. Also, both LIST and NLST tend to hide
unix-style hidden files (those that start with a dot) by default so you need
to do "LIST -a" or similar to see them.
The application thus needs to parse the LIST output. One such existing
list parser is available at http://cr.yp.to/ftpparse.html
6. License Issues 6. License Issues
Curl and libcurl are released under a MIT/X derivate license. The license is Curl and libcurl are released under a MIT/X derivate license. The license is