More fixes & bump libc

Cargo.toml

@@ -20,7 +20,7 @@ features = ["handleapi", "ws2def", "ws2ipdef", "ws2tcpip", "minwindef"]
 
 [target."cfg(any(unix, target_os = \"redox\"))".dependencies]
 cfg-if = "0.1"
-libc = { git = "https://github.com/rust-lang/libc", rev = "ad4d492" }
+libc = "0.2.42"
 
 [target."cfg(target_os = \"redox\")".dependencies]
 redox_syscall = "0.1.38"

src/socket.rs

@@ -829,12 +829,12 @@ impl Type {
 
     /// Type corresponding to `SOCK_SEQPACKET`
     pub fn seqpacket() -> Type {
-        Type(c::SOCK_SEQPACKET)
+        Type(sys::SOCK_SEQPACKET)
     }
 
     /// Type corresponding to `SOCK_RAW`
     pub fn raw() -> Type {
-        Type(c::SOCK_RAW)
+        Type(sys::SOCK_RAW)
     }
 }
 

src/sys/unix/mod.rs

@@ -65,6 +65,8 @@ pub const IPPROTO_ICMP: i32 = libc::IPPROTO_ICMP;
 pub const IPPROTO_ICMPV6: i32 = libc::IPPROTO_ICMPV6;
 pub const IPPROTO_TCP: i32 = libc::IPPROTO_TCP;
 pub const IPPROTO_UDP: i32 = libc::IPPROTO_UDP;
+pub const SOCK_SEQPACKET: i32 = libc::SOCK_SEQPACKET;
+pub const SOCK_RAW: i32 = libc::SOCK_RAW;
 
 #[macro_use]
 #[cfg(target_os = "linux")]

src/sys/windows.rs

@@ -47,6 +47,8 @@ pub const IPPROTO_ICMP: i32 = ws2def::IPPROTO_ICMP as i32;
 pub const IPPROTO_ICMPV6: i32 = ws2def::IPPROTO_ICMPV6 as i32;
 pub const IPPROTO_TCP: i32 = ws2def::IPPROTO_TCP as i32;
 pub const IPPROTO_UDP: i32 = ws2def::IPPROTO_UDP as i32;
+pub const SOCK_SEQPACKET: i32 = ws2def::SOCK_SEQPACKET as i32;
+pub const SOCK_RAW: i32 = ws2def::SOCK_RAW as i32;
 
 #[repr(C)]
 struct tcp_keepalive {