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fish: enable the legacy provider if build against OpenSSL3

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OpenSSL 3.0 disables a number of "legacy" algorithms by default, and we
need to enable them manually using their provider system. Note that
explicitly loading a provider will disable the implicit default
provider, which is why we need to load it explicitly.

Closes #2629

Signed-off-by: Simon Chopin <simon.chopin@canonical.com>

V2:
  * use a local OSSL_LIB_CTX to avoid leaking the legacy algorithms
    into the main SSL context.
  * Simplify the fish_init() error paths by calling fish_deinit()
This commit is contained in:
Simon Chopin
2021-11-30 13:56:56 +01:00
committed by Patrick
parent 8443755772
commit bbd60a96ec
4 changed files with 68 additions and 1 deletions
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4
plugins/fishlim/plugin_hexchat.c
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@@ -815,6 +815,9 @@ int hexchat_plugin_init(hexchat_plugin *plugin_handle,
hexchat_hook_server_attrs(ph, "TOPIC", HEXCHAT_PRI_NORM, handle_incoming, NULL);
hexchat_hook_server_attrs(ph, "332", HEXCHAT_PRI_NORM, handle_incoming, NULL);
if (!fish_init())
return 0;
if (!dh1080_init())
return 0;
@@ -828,6 +831,7 @@ int hexchat_plugin_init(hexchat_plugin *plugin_handle,
int hexchat_plugin_deinit(void) {
g_clear_pointer(&pending_exchanges, g_hash_table_destroy);
dh1080_deinit();
fish_deinit();
hexchat_printf(ph, "%s plugin unloaded\n", plugin_name);
return 1;