From ec65b0c67b452539fded5e06cbb6ce1d165074e0 Mon Sep 17 00:00:00 2001
From: Steven Fackler <sfackler@gmail.com>
Date: Sat, 7 Feb 2015 21:28:54 -0800
Subject: Move docs to this repo and auto build

---
 openssl/src/bio/mod.rs | 105 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 openssl/src/bio/mod.rs

(limited to 'openssl/src/bio')

diff --git a/openssl/src/bio/mod.rs b/openssl/src/bio/mod.rs
new file mode 100644
index 00000000..2f12f906
--- /dev/null
+++ b/openssl/src/bio/mod.rs
@@ -0,0 +1,105 @@
+use libc::{c_void, c_int};
+use std::old_io::{EndOfFile, IoResult, IoError, OtherIoError};
+use std::old_io::{Reader, Writer};
+use std::ptr;
+
+use ffi;
+use ssl::error::{SslError};
+
+pub struct MemBio {
+    bio: *mut ffi::BIO,
+    owned: bool
+}
+
+impl Drop for MemBio {
+    fn drop(&mut self) {
+        if self.owned {
+            unsafe {
+                ffi::BIO_free_all(self.bio);
+            }
+        }
+    }
+}
+
+impl MemBio {
+    /// Creates a new owned memory based BIO
+    pub fn new() -> Result<MemBio, SslError> {
+        ffi::init();
+
+        let bio = unsafe { ffi::BIO_new(ffi::BIO_s_mem()) };
+        try_ssl_null!(bio);
+
+        Ok(MemBio {
+            bio: bio,
+            owned: true
+        })
+    }
+
+    /// Returns a "borrow", i.e. it has no ownership
+    pub fn borrowed(bio: *mut ffi::BIO) -> MemBio {
+        MemBio {
+            bio: bio,
+            owned: false
+        }
+    }
+
+    /// Consumes current bio and returns wrapped value
+    /// Note that data ownership is lost and
+    /// should be managed manually
+    pub unsafe fn unwrap(mut self) -> *mut ffi::BIO {
+        self.owned = false;
+        self.bio
+    }
+
+    /// Temporarily gets wrapped value
+    pub unsafe fn get_handle(&self) -> *mut ffi::BIO {
+        self.bio
+    }
+}
+
+impl Reader for MemBio {
+    fn read(&mut self, buf: &mut [u8]) -> IoResult<usize> {
+        let ret = unsafe {
+            ffi::BIO_read(self.bio, buf.as_ptr() as *mut c_void,
+                          buf.len() as c_int)
+        };
+
+        if ret <= 0 {
+            let is_eof = unsafe { ffi::BIO_eof(self.bio) };
+            let err = if is_eof {
+                IoError {
+                    kind: EndOfFile,
+                    desc: "MemBio EOF",
+                    detail: None
+                }
+            } else {
+                IoError {
+                    kind: OtherIoError,
+                    desc: "MemBio read error",
+                    detail: Some(format!("{:?}", SslError::get()))
+                }
+            };
+            Err(err)
+        } else {
+            Ok(ret as usize)
+        }
+    }
+}
+
+impl Writer for MemBio {
+    fn write_all(&mut self, buf: &[u8]) -> IoResult<()> {
+        let ret = unsafe {
+            ffi::BIO_write(self.bio, buf.as_ptr() as *const c_void,
+                           buf.len() as c_int)
+        };
+        if buf.len() != ret as usize {
+            Err(IoError {
+                kind: OtherIoError,
+                desc: "MemBio write error",
+                detail: Some(format!("{:?}", SslError::get()))
+            })
+        } else {
+            Ok(())
+        }
+    }
+}
-- 
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