unix: Add openpty(3) and forkpty(3)

Author: kamalmarhubi

libc-test/build.rs

@@ -128,6 +128,12 @@ fn main() {
 
     if bsdlike {
         cfg.header("sys/event.h");
+
+        if freebsd {
+            cfg.header("libutil.h");
+        } else {
+            cfg.header("util.h");
+        }
     }
 
     if linux {
@@ -136,6 +142,7 @@ fn main() {
         cfg.header("sys/xattr.h");
         cfg.header("sys/ipc.h");
         cfg.header("sys/shm.h");
+        cfg.header("pty.h");
     }
 
     if linux || android {
@@ -149,7 +156,6 @@ fn main() {
         cfg.header("sys/sendfile.h");
         cfg.header("sys/vfs.h");
         cfg.header("sys/syscall.h");
-        cfg.header("pty.h");
         if !musl {
             cfg.header("linux/netlink.h");
             cfg.header("linux/magic.h");

src/unix/bsd/apple/mod.rs

@@ -927,6 +927,15 @@ extern {
                     len: *mut ::off_t,
                     hdtr: *mut ::sf_hdtr,
                     flags: ::c_int) -> ::c_int;
+    pub fn openpty(amaster: *mut ::c_int,
+                   aslave: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *mut termios,
+                   winp: *mut ::winsize) -> ::c_int;
+    pub fn forkpty(amaster: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *mut termios,
+                   winp: *mut ::winsize) -> ::pid_t;
 }
 
 cfg_if! {

src/unix/bsd/freebsdlike/mod.rs

@@ -590,6 +590,19 @@ extern {
                     flags: ::c_int) -> ::c_int;
 }
 
+#[link(name = "util")]
+extern "C" {
+    pub fn openpty(amaster: *mut ::c_int,
+                   aslave: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *mut termios,
+                   winp: *mut ::winsize) -> ::c_int;
+    pub fn forkpty(amaster: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *mut termios,
+                   winp: *mut ::winsize) -> ::pid_t;
+}
+
 cfg_if! {
     if #[cfg(target_os = "freebsd")] {
         mod freebsd;

src/unix/bsd/openbsdlike/mod.rs

@@ -393,6 +393,19 @@ extern {
     pub fn mkostemps(template: *mut ::c_char, suffixlen: ::c_int, flags: ::c_int) -> ::c_int;
 }
 
+#[link(name = "util")]
+extern "C" {
+    pub fn openpty(amaster: *mut ::c_int,
+                   aslave: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *mut termios,
+                   winp: *mut ::winsize) -> ::c_int;
+    pub fn forkpty(amaster: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *mut termios,
+                   winp: *mut ::winsize) -> ::pid_t;
+}
+
 cfg_if! {
     if #[cfg(target_os = "bitrig")] {
         mod bitrig;

src/unix/notbsd/linux/mod.rs

@@ -544,6 +544,19 @@ extern {
     pub fn mkostemps(template: *mut ::c_char, suffixlen: ::c_int, flags: ::c_int) -> ::c_int;
 }
 
+#[link(name = "util")]
+extern "C" {
+    pub fn openpty(amaster: *mut ::c_int,
+                   aslave: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *const termios,
+                   winp: *const ::winsize) -> ::c_int;
+    pub fn forkpty(amaster: *mut ::c_int,
+                   name: *mut ::c_char,
+                   termp: *const termios,
+                   winp: *const ::winsize) -> ::pid_t;
+}
+
 cfg_if! {
     if #[cfg(any(target_env = "musl",
                  target_os = "emscripten"))] {

src/unix/notbsd/mod.rs

@@ -655,15 +655,6 @@ extern {
 
     pub fn posix_fadvise(fd: ::c_int, offset: ::off_t, len: ::off_t, 
                          advise: ::c_int) -> ::c_int;
-    pub fn openpty(amaster: *mut ::c_int,
-                   aslave: *mut ::c_int,
-                   name: *mut ::c_char,
-                   termp: *const termios,
-                   winp: *const ::winsize) -> ::c_int;
-    pub fn forkpty(amaster: *mut ::c_int,
-                   name: *mut ::c_char,
-                   termp: *const termios,
-                   winp: *const ::winsize) -> ::pid_t;
 }
 
 cfg_if! {