Commit Graph

13 Commits

Author SHA1 Message Date
João Paulo Taylor Ienczak Zanette e92f822fc8 emile: make emile optional 2021-01-06 14:20:16 -03:00
Felipe Magno de Almeida 1dba2f717a emile: Rename EAPI macro to EMILE_API in Emile library
Patch from a series of patches to rename EAPI symbols to specific
library DSOs.

EAPI was designed to be able to pass
```__attribute__ ((visibility ("default")))``` for symbols with
GCC, which would mean that even if -fvisibility=hidden was used
when compiling the library, the needed symbols would get exported.

MSVC __almost__ works like GCC (or mingw) in which you can
declare everything as export and it will just work (slower, but
it will work). But there's a caveat: global variables will not
work the same way for MSVC, but works for mingw and GCC.

For global variables (as opposed to functions), MSVC requires
correct DSO visibility for MSVC: instead of declaring a symbol as
export for everything, you need to declare it as import when
importing from another DSO and export when defining it locally.

With current EAPI definitions, we get the following example
working in mingw and MSVC (observe it doesn't define any global
variables as exported symbols).

Example 1:
dll1:
```
EAPI void foo(void);

EAPI void bar()
{
  foo();
}
```
dll2:
```
EAPI void foo()
{
  printf ("foo\n");
}
```

This works fine with API defined as __declspec(dllexport) in both
cases and for gcc defining as
```__atttribute__((visibility("default")))```.

However, the following:
Example 2:

dll1:

```
EAPI extern int foo;
EAPI void foobar(void);

EAPI void bar()
{
  foo = 5;
  foobar();
}
```

dll2:

```
EAPI int foo = 0;
EAPI void foobar()
{
  printf ("foo %d\n", foo);
}
```

This will work on mingw but will not work for MSVC. And that's why
EAPI is the only solution that worked for MSVC.

Co-authored-by: João Paulo Taylor Ienczak Zanette <jpaulotiz@gmail.com>
Co-authored-by: Ricardo Campos <ricardo.campos@expertise.dev>
Co-authored-by: Lucas Cavalcante de Sousa <lucks.sousa@gmail.com>
2020-12-14 13:22:33 -03:00
Gustavo Sverzut Barbieri d8caade348 emile: API break, rename sha1 to hmac_sha1, introduce real sha1.
emile_binbuf_sha1() was actually doing HMAC version using the given
key. This doesn't work when all you need is just the SHA1 of the input
data.

Then rename emile_binbuf_sha1() to emile_binbuf_hmac_sha1() and
introduce a new version without key/keylen.

This API was marked as BETA and no real users in the codebase, then it
shouldn't cause us problems.
2016-08-30 00:35:17 -03:00
Cedric BAIL ae5e2c8284 emile/ecore_con: drop SSLv3 support due to security issue.
SSLv3 has been compromised a year ago by what is known as POODLE
(https://en.wikipedia.org/wiki/POODLE). Every major browser have now
dropped support for SSLv3 and distribution are starting to do so also.
It is a good timing for us to do so, especially as it breaks build on
some distribution.
2015-11-02 14:22:42 -08:00
Cedric BAIL f875f759ca emile: fix coding style with ecrustify. 2015-03-17 09:58:21 +01:00
Cedric BAIL 4b4bdd9723 emile: normalize version number to 1.14. 2015-03-17 09:58:20 +01:00
Cedric BAIL df20c9ff8e emile: implement emile_cipher_module_get in a useful way. 2015-03-17 09:58:20 +01:00
Cedric BAIL f4c5b3fd70 emile: document the stable cipher function. 2015-03-17 09:58:20 +01:00
Cedric BAIL d6a2f0cad5 emile: actually this set of function are neat enough to be a public API. 2015-03-17 09:58:20 +01:00
Cedric BAIL 8f3ec959b9 emile: change the API to allow supporting other cipher in the future. 2015-03-17 09:58:19 +01:00
Cedric BAIL d32f310a92 emile: mark ssl layer as a beta API for now. 2015-03-17 09:58:19 +01:00
Cedric BAIL 8fd9770d95 emile: reduce code duplication between gnutls and openssl backend.
Add a visible emile_binbuf_sha1 implementation and deduplicate
emile_pbkdf2_sha1 (but does not explicitely expose it).
2015-03-17 09:58:19 +01:00
Cedric BAIL 2cd4e1764d emile: split headers. 2015-03-17 09:58:19 +01:00