Horizon (Nintendo 3DS) getrandom function and fixes

src/unix/mod.rs

@@ -23,13 +23,21 @@ pub type uintptr_t = usize;
 pub type ssize_t = isize;
 
 pub type pid_t = i32;
-pub type uid_t = u32;
-pub type gid_t = u32;
 pub type in_addr_t = u32;
 pub type in_port_t = u16;
 pub type sighandler_t = ::size_t;
 pub type cc_t = ::c_uchar;
 
+cfg_if! {
+    if #[cfg(target_os = "horizon")] {
+        pub type uid_t = ::c_ushort;
+        pub type gid_t = ::c_ushort;
+    } else {
+        pub type uid_t = u32;
+        pub type gid_t = u32;
+    }
+}
+
 #[cfg_attr(feature = "extra_traits", derive(Debug))]
 pub enum DIR {}
 impl ::Copy for DIR {}

src/unix/newlib/horizon/mod.rs

@@ -6,7 +6,6 @@ pub type c_ulong = u32;
 
 pub type wchar_t = ::c_uint;
 
-pub type in_port_t = ::c_ushort;
 pub type u_register_t = ::c_uint;
 pub type u_char = ::c_uchar;
 pub type u_short = ::c_ushort;
@@ -34,8 +33,9 @@ s! {
 
     pub struct sockaddr_in {
         pub sin_family: ::sa_family_t,
-        pub sin_port: in_port_t,
+        pub sin_port: ::in_port_t,
         pub sin_addr: ::in_addr,
+        pub sin_zero: [::c_uchar; 8],
     }
 
     pub struct sockaddr_in6 {
@@ -147,6 +147,10 @@ pub const FIONBIO: ::c_ulong = 1;
 
 pub const RTLD_DEFAULT: *mut ::c_void = 0 as *mut ::c_void;
 
+// For getrandom()
+pub const GRND_NONBLOCK: ::c_uint = 0x1;
+pub const GRND_RANDOM: ::c_uint = 0x2;
+
 // Horizon OS works doesn't or can't hold any of this information
 safe_f! {
     pub {const} fn WIFSTOPPED(_status: ::c_int) -> bool {
@@ -190,5 +194,7 @@ extern "C" {
         value: *mut ::c_void,
     ) -> ::c_int;
 
+    pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
+
     pub fn gethostid() -> ::c_long;
 }

src/unix/newlib/mod.rs

@@ -129,25 +129,6 @@ s! {
         pub tm_isdst: ::c_int,
     }
 
-    pub struct stat {
-        pub st_dev: ::dev_t,
-        pub st_ino: ::ino_t,
-        pub st_mode: ::mode_t,
-        pub st_nlink: ::nlink_t,
-        pub st_uid: ::uid_t,
-        pub st_gid: ::gid_t,
-        pub st_rdev: dev_t,
-        pub st_size: off_t,
-        pub st_atime: time_t,
-        pub st_spare1: ::c_long,
-        pub st_mtime: time_t,
-        pub st_spare2: ::c_long,
-        pub st_ctime: time_t,
-        pub st_spare3: ::c_long,
-        pub st_blksize: blksize_t,
-        pub st_blocks: blkcnt_t,
-        pub st_spare4: [::c_long; 2usize],
-    }
 
     pub struct statvfs {
         pub f_bsize: ::c_ulong,
@@ -163,10 +144,6 @@ s! {
         pub f_namemax: ::c_ulong,
     }
 
-    pub struct sigset_t {
-        __val: [::c_ulong; 16],
-    }
-
     pub struct sigaction {
         pub sa_handler: extern fn(arg1: ::c_int),
         pub sa_mask: sigset_t,
@@ -242,6 +219,57 @@ s! {
     }
 }
 
+cfg_if! {
+    if #[cfg(target_os = "horizon")] {
+        pub type sigset_t = ::c_ulong;
+
+        s! {
+            pub struct stat {
+                pub st_dev: ::dev_t,
+                pub st_ino: ::ino_t,
+                pub st_mode: ::mode_t,
+                pub st_nlink: ::nlink_t,
+                pub st_uid: ::uid_t,
+                pub st_gid: ::gid_t,
+                pub st_rdev: dev_t,
+                pub st_size: off_t,
+                pub st_atim: ::timespec,
+                pub st_mtim: ::timespec,
+                pub st_ctim: ::timespec,
+                pub st_blksize: blksize_t,
+                pub st_blocks: blkcnt_t,
+                pub st_spare4: [::c_long; 2usize],
+            }
+        }
+    } else {
+        s! {
+            pub struct sigset_t {
+                __val: [::c_ulong; 16],
+            }
+
+            pub struct stat {
+                pub st_dev: ::dev_t,
+                pub st_ino: ::ino_t,
+                pub st_mode: ::mode_t,
+                pub st_nlink: ::nlink_t,
+                pub st_uid: ::uid_t,
+                pub st_gid: ::gid_t,
+                pub st_rdev: dev_t,
+                pub st_size: off_t,
+                pub st_atime: time_t,
+                pub st_spare1: ::c_long,
+                pub st_mtime: time_t,
+                pub st_spare2: ::c_long,
+                pub st_ctime: time_t,
+                pub st_spare3: ::c_long,
+                pub st_blksize: blksize_t,
+                pub st_blocks: blkcnt_t,
+                pub st_spare4: [::c_long; 2usize],
+            }
+        }
+    }
+}
+
 // unverified constants
 align_const! {
     pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t {
@@ -283,7 +311,14 @@ pub const __PTHREAD_RWLOCK_INT_FLAGS_SHARED: usize = 1;
 pub const PTHREAD_MUTEX_NORMAL: ::c_int = 0;
 pub const PTHREAD_MUTEX_RECURSIVE: ::c_int = 1;
 pub const PTHREAD_MUTEX_ERRORCHECK: ::c_int = 2;
-pub const FD_SETSIZE: usize = 1024;
+
+cfg_if! {
+    if #[cfg(target_os = "horizon")] {
+        pub const FD_SETSIZE: usize = 64;
+    } else {
+        pub const FD_SETSIZE: usize = 1024;
+    }
+}
 // intentionally not public, only used for fd_set
 const ULONG_SIZE: usize = 32;