1 files changed, 77 insertions, 0 deletions
diff --git a/vendor/openssl/src/provider.rs b/vendor/openssl/src/provider.rs
new file mode 100644
index 0000000..147fadf
--- /dev/null
+++ b/vendor/openssl/src/provider.rs
@@ -0,0 +1,77 @@
+use crate::error::ErrorStack;
+use crate::lib_ctx::LibCtxRef;
+use crate::{cvt, cvt_p};
+use foreign_types::{ForeignType, ForeignTypeRef};
+use openssl_macros::corresponds;
+use std::ffi::CString;
+use std::ptr;
+
+foreign_type_and_impl_send_sync! {
+    type CType = ffi::OSSL_PROVIDER;
+    fn drop = ossl_provider_free;
+
+    pub struct Provider;
+    /// A reference to a [`Provider`].
+    pub struct ProviderRef;
+}
+
+#[inline]
+unsafe fn ossl_provider_free(p: *mut ffi::OSSL_PROVIDER) {
+    ffi::OSSL_PROVIDER_unload(p);
+}
+
+impl Provider {
+    /// Loads a new provider into the specified library context, disabling the fallback providers.
+    ///
+    /// If `ctx` is `None`, the provider will be loaded in to the default library context.
+    #[corresponds(OSSL_provider_load)]
+    pub fn load(ctx: Option<&LibCtxRef>, name: &str) -> Result<Self, ErrorStack> {
+        let name = CString::new(name).unwrap();
+        unsafe {
+            let p = cvt_p(ffi::OSSL_PROVIDER_load(
+                ctx.map_or(ptr::null_mut(), ForeignTypeRef::as_ptr),
+                name.as_ptr(),
+            ))?;
+
+            Ok(Provider::from_ptr(p))
+        }
+    }
+
+    /// Loads a new provider into the specified library context, disabling the fallback providers if `retain_fallbacks`
+    /// is `false` and the load succeeds.
+    ///
+    /// If `ctx` is `None`, the provider will be loaded into the default library context.
+    #[corresponds(OSSL_provider_try_load)]
+    pub fn try_load(
+        ctx: Option<&LibCtxRef>,
+        name: &str,
+        retain_fallbacks: bool,
+    ) -> Result<Self, ErrorStack> {
+        let name = CString::new(name).unwrap();
+        unsafe {
+            let p = cvt_p(ffi::OSSL_PROVIDER_try_load(
+                ctx.map_or(ptr::null_mut(), ForeignTypeRef::as_ptr),
+                name.as_ptr(),
+                retain_fallbacks as _,
+            ))?;
+
+            Ok(Provider::from_ptr(p))
+        }
+    }
+
+    /// Specifies the default search path that is to be used for looking for providers in the specified library context.
+    /// If left unspecified, an environment variable and a fall back default value will be used instead
+    ///
+    /// If `ctx` is `None`, the provider will be loaded into the default library context.
+    #[corresponds(OSSL_PROVIDER_set_default_search_path)]
+    pub fn set_default_search_path(ctx: Option<&LibCtxRef>, path: &str) -> Result<(), ErrorStack> {
+        let path = CString::new(path).unwrap();
+        unsafe {
+            cvt(ffi::OSSL_PROVIDER_set_default_search_path(
+                ctx.map_or(ptr::null_mut(), ForeignTypeRef::as_ptr),
+                path.as_ptr(),
+            ))
+            .map(|_| ())
+        }
+    }
+}