[PATCH v2 1/3] bcrypt: Prevent gnutls from using system priority file.

[Paul Gofman]

Fedora 33 disabled protocols below TLS 1.2 through crypto policy [1].

https://fedoraproject.org/wiki/Changes/StrongCryptoSettings2#Strong_crypto_s...
Signed-off-by: Paul Gofman 
---
v2:
    - print warning.

dlls/bcrypt/gnutls.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/dlls/bcrypt/gnutls.c b/dlls/bcrypt/gnutls.c
index e85085499ca..41df88ca8f6 100644
--- a/dlls/bcrypt/gnutls.c
+++ b/dlls/bcrypt/gnutls.c
@@ -222,8 +222,19 @@ static void gnutls_log( int level, const char *msg )

static BOOL gnutls_initialize(void)
 {
+    const char *env_str;
     int ret;

+    if ((env_str = getenv("GNUTLS_SYSTEM_PRIORITY_FILE")))
+    {
+        WARN("GNUTLS_SYSTEM_PRIORITY_FILE is %s.\n", debugstr_a(env_str));
+    }
+    else
+    {
+        WARN("Setting GNUTLS_SYSTEM_PRIORITY_FILE to "/dev/null".\n");
+        setenv("GNUTLS_SYSTEM_PRIORITY_FILE", "/dev/null", 0);
+    }
+
     if (!(libgnutls_handle = dlopen( SONAME_LIBGNUTLS, RTLD_NOW )))
     {
         ERR_(winediag)( "failed to load libgnutls, no support for encryption\n" );