Base64 encode and decode

[amit paliwal]

Hi,

As Curl provides many useful options to set with curl_easy_perform(), but
I don't see any option that takes whether we want to apply Base64 encoding
and decoding or not. There are API's available, which I can use from my
application code directly, API's are:

Curl_base64_encode()
Curl_base64_decode()

Do I need to use them explicitly, or there is some other way of using it
too.

[Dan Fandrich]

Post by amit paliwal
As Curl provides many useful options to set with curl_easy_perform(), but
I don't see any option that takes whether we want to apply Base64 encoding and
decoding or not. There are API's available, which I can use from my application
Curl_base64_encode()
Curl_base64_decode()
Do I need to use them explicitly, or there is some other way of using it too.

libcurl base64-encodes control data in a few places automatically when
required (e.g. for Basic authentication), but it won't encode data. If your
application requires base64-encoded data, it will need to be so encoded in the
app. And those two functions are not actually part of the libcurl API, so
they aren't even available for use in apps, anyway.

Post by amit paliwal

Dan

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[amit paliwal]

Post by amit paliwal

Post by amit paliwal
As Curl provides many useful options to set with curl_easy_perform(), but
I don't see any option that takes whether we want to apply Base64

encoding and

Post by amit paliwal
decoding or not. There are API's available, which I can use from my

application

Post by amit paliwal
Curl_base64_encode()
Curl_base64_decode()
Do I need to use them explicitly, or there is some other way of using it

too.
libcurl base64-encodes control data in a few places automatically when
required (e.g. for Basic authentication), but it won't encode data. If your
application requires base64-encoded data, it will need to be so encoded in the
app. And those two functions are not actually part of the libcurl API, so
they aren't even available for use in apps, anyway.
So does it mean that if I use TLS and HTTPS I need not to apply it

separately and it will be done automatically??????

Post by amit paliwal

Post by amit paliwal

Dan

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[Daniel Stenberg]

Post by amit paliwal

Post by Dan Fandrich
libcurl base64-encodes control data in a few places automatically when
required (e.g. for Basic authentication), but it won't encode data. If your
application requires base64-encoded data, it will need to be so encoded in
the app. And those two functions are not actually part of the libcurl API,
so they aren't even available for use in apps, anyway.

So does it mean that if I use TLS and HTTPS I need not to apply it
separately and it will be done automatically??????

It means that libcurl provides an API to do data transfers. You can use that
API as documented. libcurl offers transfers using a larger amount of different
protocols, and some of those protocols do sometimes require that data is sent
base64-encoded and then libcurl will do so.

[amit paliwal]

Post by Dan Fandrich
libcurl base64-encodes control data in a few places automatically when

Post by amit paliwal

Post by Dan Fandrich
required (e.g. for Basic authentication), but it won't encode data. If your
application requires base64-encoded data, it will need to be so encoded in
the app. And those two functions are not actually part of the libcurl API,
so they aren't even available for use in apps, anyway.

So does it mean that if I use TLS and HTTPS I need not to apply it

Post by amit paliwal
separately and it will be done automatically??????

It means that libcurl provides an API to do data transfers. You can use
that API as documented. libcurl offers transfers using a larger amount of
different protocols, and some of those protocols do sometimes require that
data is sent base64-encoded and then libcurl will do so.
I tried using curl_base64.h, but when i installed the curl package, i did

not found this .h file in my /usr/local/include/curl directory where other
.h files like curl.h are present. Do i need to enable it with some
particular option.

Post by Dan Fandrich
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[Dan Fandrich]

Post by Dan Fandrich
libcurl base64-encodes control data in a few places automatically
when required (e.g. for Basic authentication), but it won't encode
data. If your application requires base64-encoded data, it will
need to be so encoded in the app.  And those two functions are not
actually part of the libcurl API, so they aren't even available for
use in apps, anyway.
So does it mean that if I use TLS and HTTPS I need not to apply it
separately and it will be done automatically??????
It means that libcurl provides an API to do data transfers. You can use
that API as documented. libcurl offers transfers using a larger amount of
different protocols, and some of those protocols do sometimes require that
data is sent base64-encoded and then libcurl will do so.
I tried using curl_base64.h, but when i installed the curl package, i did not
found this .h file in my /usr/local/include/curl  directory where other .h
files like curl.h are present. Do i need to enable it with some particular
option.

I'm quoting the whole message, because the answer is contained in your own
e-mail, namely:

And those two functions are not actually part of the libcurl API, so
they aren't even available for use in apps, anyway.

That means you'll have to reimplement them yourself, or copy the source out of
libcurl. libcurl has a family of curlx_* functions that fall into this sort
of category of useful, but not really appropriate to have in the libcurl API,
but the base64 functions aren't included in these.

Post by Dan Fandrich

Dan

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