feat(transport-sendmail): Make the command parameter an OsStr

src/lib.rs

@@ -17,7 +17,7 @@
 //! * **native-tls**: TLS support with the `native-tls` crate
 //! * **r2d2**: Connection pool for SMTP transport
 //! * **log**: Logging using the `log` crate
-//! * **serde**: Serilization/Deserialization of entities
+//! * **serde**: Serialization/Deserialization of entities
 //! * **hostname**: Ability to try to use actual hostname in SMTP transaction
 
 #![doc(html_root_url = "https://docs.rs/lettre/0.10.0")]

src/transport/sendmail/mod.rs

@@ -26,29 +26,32 @@
 use crate::{transport::sendmail::error::Error, Envelope, Transport};
 use std::{
     convert::AsRef,
+    ffi::OsString,
     io::prelude::*,
     process::{Command, Stdio},
 };
 
 pub mod error;
 
+const DEFAUT_SENDMAIL: &str = "/usr/sbin/sendmail";
+
 /// Sends an email using the `sendmail` command
 #[derive(Debug, Default)]
 #[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct SendmailTransport {
-    command: String,
+    command: OsString,
 }
 
 impl SendmailTransport {
     /// Creates a new transport with the default `/usr/sbin/sendmail` command
     pub fn new() -> SendmailTransport {
         SendmailTransport {
-            command: "/usr/sbin/sendmail".to_string(),
+            command: DEFAUT_SENDMAIL.into(),
         }
     }
 
     /// Creates a new transport to the given sendmail command
-    pub fn new_with_command<S: Into<String>>(command: S) -> SendmailTransport {
+    pub fn new_with_command<S: Into<OsString>>(command: S) -> SendmailTransport {
         SendmailTransport {
             command: command.into(),
         }

src/transport/smtp/mod.rs

@@ -221,6 +221,9 @@ pub const SUBMISSION_PORT: u16 = 587;
 /// Default submission over TLS port
 pub const SUBMISSIONS_PORT: u16 = 465;
 
+/// Default timeout
+pub const DEFAULT_TIMEOUT: Duration = Duration::from_secs(60);
+
 /// Accepted protocols by default.
 /// This removes TLS 1.0 and 1.1 compared to tls-native defaults.
 // This is also rustls' default behavior
@@ -286,7 +289,7 @@ impl SmtpTransport {
             hello_name: ClientId::hostname(),
             credentials: None,
             authentication: DEFAULT_MECHANISMS.into(),
-            timeout: Some(Duration::new(60, 0)),
+            timeout: Some(DEFAULT_TIMEOUT),
             tls: Tls::None,
             #[cfg(feature = "r2d2")]
             pool: None,