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libcurl-tutorial.3: spellfix and minor polish

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Daniel Stenberg 2022-04-20 10:56:41 +02:00
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docs/libcurl/libcurl-tutorial.3
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@ -77,9 +77,8 @@ for different libcurls.
See also the "Features libcurl Provides" further down.
.IP "autoconf macro"
When you write your configure script to detect libcurl and setup variables
accordingly, we offer a prewritten macro that probably does everything you
need in this area. See docs/libcurl/libcurl.m4 file - it includes docs on how
to use it.
accordingly, we offer a macro that probably does everything you need in this
area. See docs/libcurl/libcurl.m4 file - it includes docs on how to use it.
.SH "Portable Code in a Portable World"
The people behind libcurl have put a considerable effort to make libcurl work
@ -443,12 +442,12 @@ Simple enough, huh? Since you set the POST options with the
\fICURLOPT_POSTFIELDS(3)\fP, this automatically switches the handle to use
POST in the upcoming request.
Ok, so what if you want to post binary data that also requires you to set the
Content-Type: header of the post? Well, binary posts prevent libcurl from
being able to do strlen() on the data to figure out the size, so therefore we
must tell libcurl the size of the post data. Setting headers in libcurl
requests are done in a generic way, by building a list of our own headers and
then passing that list to libcurl.
What if you want to post binary data that also requires you to set the
Content-Type: header of the post? Well, binary posts prevent libcurl from being
able to do strlen() on the data to figure out the size, so therefore we must
tell libcurl the size of the post data. Setting headers in libcurl requests are
done in a generic way, by building a list of our own headers and then passing
that list to libcurl.
.nf
struct curl_slist *headers=NULL;
@ -851,7 +850,7 @@ SSL is for secure point-to-point connections. This involves strong encryption
and similar things, which effectively makes it impossible for a proxy to
operate as a "man in between" which the proxy's task is, as previously
discussed. Instead, the only way to have SSL work over an HTTP proxy is to ask
the proxy to tunnel trough everything without being able to check or fiddle
the proxy to tunnel everything through without being able to check or fiddle
with the traffic.
Opening an SSL connection over an HTTP proxy is therefore a matter of asking the