X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Flibstd%2Fsys%2Fsgx%2Fabi%2Fusercalls%2Fmod.rs;h=2bc32c9fefbb73a933bbaf180be5be0f4d377883;hb=38f5c97c3383fb8424fbde6ccdc1aaad4c28ae0f;hp=d1d180e48251f90fcae1d1feeee1f957e03c3220;hpb=4358be46c7f04a6cc12ae913c46a635bb1559779;p=rust.git

diff --git a/src/libstd/sys/sgx/abi/usercalls/mod.rs b/src/libstd/sys/sgx/abi/usercalls/mod.rs
index d1d180e4825..2bc32c9fefb 100644
--- a/src/libstd/sys/sgx/abi/usercalls/mod.rs
+++ b/src/libstd/sys/sgx/abi/usercalls/mod.rs
@@ -33,6 +33,14 @@ pub fn read(fd: Fd, buf: &mut [u8]) -> IoResult<usize> {
     }
 }
 
+pub fn read_alloc(fd: Fd) -> IoResult<Vec<u8>> {
+    unsafe {
+        let mut userbuf = alloc::User::<ByteBuffer>::uninitialized();
+        raw::read_alloc(fd, userbuf.as_raw_mut_ptr()).from_sgx_result()?;
+        Ok(copy_user_buffer(&userbuf))
+    }
+}
+
 pub fn write(fd: Fd, buf: &[u8]) -> IoResult<usize> {
     unsafe {
         let userbuf = alloc::User::new_from_enclave(buf);