1 files changed, 45 insertions, 3 deletions
diff --git a/src/unistd.rs b/src/unistd.rs
index 74d74c9c..2eb218b3 100644
--- a/src/unistd.rs
+++ b/src/unistd.rs
@@ -5,10 +5,10 @@ use fcntl::{fcntl, OFlag, O_NONBLOCK, O_CLOEXEC, FD_CLOEXEC};
 use fcntl::FcntlArg::{F_SETFD, F_SETFL};
 use libc::{self, c_char, c_void, c_int, c_uint, size_t, pid_t, off_t, uid_t, gid_t, mode_t};
 use std::mem;
-use std::ffi::{CString, CStr, OsString};
-use std::os::unix::ffi::OsStringExt;
-use std::path::PathBuf;
+use std::ffi::{CString, CStr, OsString, OsStr};
+use std::os::unix::ffi::{OsStringExt, OsStrExt};
 use std::os::unix::io::RawFd;
+use std::path::{PathBuf};
 use void::Void;
 use sys::stat::Mode;
 
@@ -511,6 +511,48 @@ pub fn sleep(seconds: libc::c_uint) -> c_uint {
     unsafe { libc::sleep(seconds) }
 }
 
+/// Creates a regular file which persists even after process termination
+///
+/// * `template`: a path whose 6 rightmost characters must be X, e.g. /tmp/tmpfile_XXXXXX
+/// * returns: tuple of file descriptor and filename
+///
+/// Err is returned either if no temporary filename could be created or the template doesn't
+/// end with XXXXXX
+///
+/// # Example
+///
+/// ```rust
+/// use nix::unistd;
+///
+/// let fd = match unistd::mkstemp("/tmp/tempfile_XXXXXX") {
+///     Ok((fd, path)) => {
+///         unistd::unlink(path.as_path()).unwrap(); // flag file to be deleted at app termination
+///         fd
+///     }
+///     Err(e) => panic!("mkstemp failed: {}", e)
+/// };
+/// // do something with fd
+/// ```
+#[inline]
+pub fn mkstemp<P: ?Sized + NixPath>(template: &P) -> Result<(RawFd, PathBuf)> {
+    let res = template.with_nix_path(|path| {
+        let mut path_copy = path.to_bytes_with_nul().to_owned();
+        let p: *mut i8 = path_copy.as_mut_ptr() as *mut i8;
+        unsafe {
+            (libc::mkstemp(p), OsStr::from_bytes(CStr::from_ptr(p).to_bytes()))
+        }
+    });
+    match res {
+        Ok((fd, pathname)) => {
+            try!(Errno::result(fd));
+            Ok((fd, PathBuf::from(pathname).to_owned()))
+        }
+        Err(e) => {
+            Err(e)
+        }
+    }
+}
+
 #[cfg(any(target_os = "linux", target_os = "android"))]
 mod linux {
     use sys::syscall::{syscall, SYSPIVOTROOT};