Return error if timeout is zero-Duration on Redox.

Author: frewsxcv

src/libstd/sys/redox/net/tcp.rs

@@ -130,6 +130,10 @@ impl TcpStream {
     pub fn set_read_timeout(&self, duration_option: Option<Duration>) -> Result<()> {
         let file = self.0.dup(b"read_timeout")?;
         if let Some(duration) = duration_option {
+            if dur.as_secs() == 0 && dur.subsec_nanos() == 0 {
+                return Err(io::Error::new(io::ErrorKind::InvalidInput,
+                                          "cannot set a 0 duration timeout"));
+            }
             file.write(&TimeSpec {
                 tv_sec: duration.as_secs() as i64,
                 tv_nsec: duration.subsec_nanos() as i32
@@ -143,6 +147,10 @@ impl TcpStream {
     pub fn set_write_timeout(&self, duration_option: Option<Duration>) -> Result<()> {
         let file = self.0.dup(b"write_timeout")?;
         if let Some(duration) = duration_option {
+            if dur.as_secs() == 0 && dur.subsec_nanos() == 0 {
+                return Err(io::Error::new(io::ErrorKind::InvalidInput,
+                                          "cannot set a 0 duration timeout"));
+            }
             file.write(&TimeSpec {
                 tv_sec: duration.as_secs() as i64,
                 tv_nsec: duration.subsec_nanos() as i32

src/libstd/sys/redox/net/udp.rs

@@ -179,6 +179,10 @@ impl UdpSocket {
     pub fn set_read_timeout(&self, duration_option: Option<Duration>) -> Result<()> {
         let file = self.0.dup(b"read_timeout")?;
         if let Some(duration) = duration_option {
+            if dur.as_secs() == 0 && dur.subsec_nanos() == 0 {
+                return Err(io::Error::new(io::ErrorKind::InvalidInput,
+                                          "cannot set a 0 duration timeout"));
+            }
             file.write(&TimeSpec {
                 tv_sec: duration.as_secs() as i64,
                 tv_nsec: duration.subsec_nanos() as i32
@@ -192,6 +196,10 @@ impl UdpSocket {
     pub fn set_write_timeout(&self, duration_option: Option<Duration>) -> Result<()> {
         let file = self.0.dup(b"write_timeout")?;
         if let Some(duration) = duration_option {
+            if dur.as_secs() == 0 && dur.subsec_nanos() == 0 {
+                return Err(io::Error::new(io::ErrorKind::InvalidInput,
+                                          "cannot set a 0 duration timeout"));
+            }
             file.write(&TimeSpec {
                 tv_sec: duration.as_secs() as i64,
                 tv_nsec: duration.subsec_nanos() as i32