Refactor openssl-sys

The old layout tried to structure itself by version but it ended up with
a lot of duplication. Instead, follow the structure of the header files.

1 files changed, 45 insertions, 0 deletions

diff --git a/openssl-sys/src/stack.rs b/openssl-sys/src/stack.rs
new file mode 100644
index 00000000..7f2feef6
--- /dev/null
+++ b/openssl-sys/src/stack.rs
@@ -0,0 +1,45 @@
+use libc::*;
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        pub enum OPENSSL_STACK {}
+    } else {
+        #[repr(C)]
+        pub struct _STACK {
+            pub num: c_int,
+            pub data: *mut *mut c_char,
+            pub sorted: c_int,
+            pub num_alloc: c_int,
+            pub comp: Option<unsafe extern "C" fn(*const c_void, *const c_void) -> c_int>,
+        }
+    }
+}
+
+cfg_if! {
+    if #[cfg(ossl110)] {
+        extern "C" {
+            pub fn OPENSSL_sk_num(stack: *const OPENSSL_STACK) -> c_int;
+            pub fn OPENSSL_sk_value(stack: *const OPENSSL_STACK, idx: c_int) -> *mut c_void;
+
+            pub fn OPENSSL_sk_new_null() -> *mut OPENSSL_STACK;
+            pub fn OPENSSL_sk_free(st: *mut OPENSSL_STACK);
+            pub fn OPENSSL_sk_pop_free(
+                st: *mut OPENSSL_STACK,
+                free: Option<unsafe extern "C" fn(*mut c_void)>,
+            );
+            pub fn OPENSSL_sk_push(st: *mut OPENSSL_STACK, data: *const c_void) -> c_int;
+            pub fn OPENSSL_sk_pop(st: *mut OPENSSL_STACK) -> *mut c_void;
+        }
+    } else {
+        extern "C" {
+            pub fn sk_num(st: *const _STACK) -> c_int;
+            pub fn sk_value(st: *const _STACK, n: c_int) -> *mut c_void;
+
+            pub fn sk_new_null() -> *mut _STACK;
+            pub fn sk_free(st: *mut _STACK);
+            pub fn sk_pop_free(st: *mut _STACK, free: Option<unsafe extern "C" fn(*mut c_void)>);
+            pub fn sk_push(st: *mut _STACK, data: *mut c_void) -> c_int;
+            pub fn sk_pop(st: *mut _STACK) -> *mut c_void;
+        }
+    }
+}