Add utmpx on freebsd

Author: knight42

src/unix/bsd/freebsdlike/mod.rs

@@ -17,6 +17,17 @@ pub type sem_t = _sem;
 pub enum timezone {}
 
 s! {
+    pub struct utmpx {
+        pub ut_type: ::c_short,
+        pub ut_tv: ::timeval,
+        pub ut_id: [::c_char; 8],
+        pub ut_pid: ::pid_t,
+        pub ut_user: [::c_char; 32],
+        pub ut_line: [::c_char; 16],
+        pub ut_host: [::c_char; 128],
+        pub __ut_spare: [::c_char; 64],
+    }
+
     pub struct glob_t {
         pub gl_pathc: ::size_t,
         __unused1: ::size_t,
@@ -158,6 +169,16 @@ s! {
     }
 }
 
+pub const EMPTY: ::c_short = 0;
+pub const BOOT_TIME: ::c_short = 1;
+pub const OLD_TIME: ::c_short = 2;
+pub const NEW_TIME: ::c_short = 3;
+pub const USER_PROCESS: ::c_short = 4;
+pub const INIT_PROCESS: ::c_short = 5;
+pub const LOGIN_PROCESS: ::c_short = 6;
+pub const DEAD_PROCESS: ::c_short = 7;
+pub const SHUTDOWN_TIME: ::c_short = 8;
+
 pub const LC_COLLATE_MASK: ::c_int = (1 << 0);
 pub const LC_CTYPE_MASK: ::c_int = (1 << 1);
 pub const LC_MESSAGES_MASK: ::c_int = (1 << 2);
@@ -701,6 +722,17 @@ f! {
     }
 }
 
+extern {
+    pub fn endutxent();
+    pub fn getutxent() -> *mut utmpx;
+    pub fn getutxid(ut: *const utmpx) -> *mut utmpx;
+    pub fn getutxline(ut: *const utmpx) -> *mut utmpx;
+    pub fn pututxline(ut: *const utmpx) -> *mut utmpx;
+    pub fn setutxent();
+    pub fn getutxuser(user: *const ::c_char) -> *mut utmpx;
+    pub fn setutxdb(_type: ::c_int, file: *const ::c_char) -> ::c_int;
+}
+
 #[link(name = "util")]
 extern {
     pub fn getnameinfo(sa: *const ::sockaddr,