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-rw-r--r--openssl/src/crypto/util.rs58
1 files changed, 0 insertions, 58 deletions
diff --git a/openssl/src/crypto/util.rs b/openssl/src/crypto/util.rs
deleted file mode 100644
index c11285f8..00000000
--- a/openssl/src/crypto/util.rs
+++ /dev/null
@@ -1,58 +0,0 @@
-use libc::{c_int, c_char, c_void};
-
-use std::any::Any;
-use std::panic;
-use std::slice;
-
-/// Wraps a user-supplied callback and a slot for panics thrown inside the callback (while FFI
-/// frames are on the stack).
-///
-/// When dropped, checks if the callback has panicked, and resumes unwinding if so.
-pub struct CallbackState<F> {
- /// The user callback. Taken out of the `Option` when called.
- cb: Option<F>,
- /// If the callback panics, we place the panic object here, to be re-thrown once OpenSSL
- /// returns.
- panic: Option<Box<Any + Send + 'static>>,
-}
-
-impl<F> CallbackState<F> {
- pub fn new(callback: F) -> Self {
- CallbackState {
- cb: Some(callback),
- panic: None,
- }
- }
-}
-
-impl<F> Drop for CallbackState<F> {
- fn drop(&mut self) {
- if let Some(panic) = self.panic.take() {
- panic::resume_unwind(panic);
- }
- }
-}
-
-/// Password callback function, passed to private key loading functions.
-///
-/// `cb_state` is expected to be a pointer to a `CallbackState`.
-pub extern "C" fn invoke_passwd_cb<F>(buf: *mut c_char,
- size: c_int,
- _rwflag: c_int,
- cb_state: *mut c_void)
- -> c_int
- where F: FnOnce(&mut [c_char]) -> usize {
- let result = panic::catch_unwind(|| {
- // build a `i8` slice to pass to the user callback
- let pass_slice = unsafe { slice::from_raw_parts_mut(buf, size as usize) };
- let callback = unsafe { &mut *(cb_state as *mut CallbackState<F>) };
-
- callback.cb.take().unwrap()(pass_slice)
- });
-
- if let Ok(len) = result {
- return len as c_int;
- } else {
- return 0;
- }
-}