diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index 378fc4b7..8383e25f 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -810,6 +810,13 @@ pub const IUTF8: ::tcflag_t = 0x00004000;
 pub const CRTSCTS: ::tcflag_t = 0x00030000;
 
 extern {
+    pub fn getnameinfo(sa: *const ::sockaddr,
+                       salen: ::socklen_t,
+                       host: *mut ::c_char,
+                       hostlen: ::socklen_t,
+                       serv: *mut ::c_char,
+                       sevlen: ::socklen_t,
+                       flags: ::c_int) -> ::c_int;
     pub fn mincore(addr: *const ::c_void, len: ::size_t,
                    vec: *mut ::c_char) -> ::c_int;
     pub fn sysctlnametomib(name: *const ::c_char,
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 508fc6b7..7ec8578f 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -558,6 +558,13 @@ pub const ST_NOSUID: ::c_ulong = 2;
 pub const HW_AVAILCPU: ::c_int = 25;
 
 extern {
+    pub fn getnameinfo(sa: *const ::sockaddr,
+                       salen: ::socklen_t,
+                       host: *mut ::c_char,
+                       hostlen: ::size_t,
+                       serv: *mut ::c_char,
+                       servlen: ::size_t,
+                       flags: ::c_int) -> ::c_int;
     pub fn mincore(addr: *const ::c_void, len: ::size_t,
                    vec: *mut ::c_char) -> ::c_int;
     pub fn sysctlnametomib(name: *const ::c_char,
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index 32418933..361fa1e3 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -322,13 +322,6 @@ extern {
     pub fn setgroups(ngroups: ::c_int,
                      ptr: *const ::gid_t) -> ::c_int;
     pub fn ioctl(fd: ::c_int, request: ::c_ulong, ...) -> ::c_int;
-    pub fn getnameinfo(sa: *const ::sockaddr,
-                       salen: ::socklen_t,
-                       host: *mut ::c_char,
-                       hostlen: ::socklen_t,
-                       serv: *mut ::c_char,
-                       sevlen: ::socklen_t,
-                       flags: ::c_int) -> ::c_int;
     pub fn kqueue() -> ::c_int;
     pub fn unmount(target: *const ::c_char, arg: ::c_int) -> ::c_int;
     pub fn syscall(num: ::c_int, ...) -> ::c_int;
diff --git a/src/unix/bsd/openbsdlike/bitrig.rs b/src/unix/bsd/openbsdlike/bitrig.rs
index da7098dc..c9fb4e70 100644
--- a/src/unix/bsd/openbsdlike/bitrig.rs
+++ b/src/unix/bsd/openbsdlike/bitrig.rs
@@ -216,6 +216,13 @@ pub const HW_AVAILCPU: ::c_int = 25;
 pub const KERN_PROC_ARGS: ::c_int = 55;
 
 extern {
+    pub fn getnameinfo(sa: *const ::sockaddr,
+                       salen: ::socklen_t,
+                       host: *mut ::c_char,
+                       hostlen: ::size_t,
+                       serv: *mut ::c_char,
+                       servlen: ::size_t,
+                       flags: ::c_int) -> ::c_int;
     pub fn mprotect(addr: *const ::c_void, len: ::size_t, prot: ::c_int)
                     -> ::c_int;
     pub fn sysctl(name: *mut ::c_int,
diff --git a/src/unix/bsd/openbsdlike/netbsd.rs b/src/unix/bsd/openbsdlike/netbsd.rs
index 25afa500..ee3efcc8 100644
--- a/src/unix/bsd/openbsdlike/netbsd.rs
+++ b/src/unix/bsd/openbsdlike/netbsd.rs
@@ -321,6 +321,13 @@ pub const NOTE_PCTRLMASK: ::uint32_t = 0xf0000000;
 pub const CRTSCTS: ::tcflag_t = 0x00010000;
 
 extern {
+    pub fn getnameinfo(sa: *const ::sockaddr,
+                       salen: ::socklen_t,
+                       host: *mut ::c_char,
+                       hostlen: ::socklen_t,
+                       serv: *mut ::c_char,
+                       sevlen: ::socklen_t,
+                       flags: ::c_int) -> ::c_int;
     pub fn mprotect(addr: *mut ::c_void, len: ::size_t, prot: ::c_int)
                     -> ::c_int;
     pub fn sysctl(name: *const ::c_int,
diff --git a/src/unix/bsd/openbsdlike/openbsd.rs b/src/unix/bsd/openbsdlike/openbsd.rs
index a3489ca9..088de2eb 100644
--- a/src/unix/bsd/openbsdlike/openbsd.rs
+++ b/src/unix/bsd/openbsdlike/openbsd.rs
@@ -218,6 +218,13 @@ pub const KERN_PROC_ARGS: ::c_int = 55;
 pub const SYS_getentropy: ::c_int = 7;
 
 extern {
+    pub fn getnameinfo(sa: *const ::sockaddr,
+                       salen: ::socklen_t,
+                       host: *mut ::c_char,
+                       hostlen: ::size_t,
+                       serv: *mut ::c_char,
+                       servlen: ::size_t,
+                       flags: ::c_int) -> ::c_int;
     pub fn mprotect(addr: *mut ::c_void, len: ::size_t, prot: ::c_int)
                     -> ::c_int;
     pub fn sysctl(name: *const ::c_int,