Linux GNU: Add reentrant network entry API

Author: Mattias Wallin

libc-test/semver/linux-gnu.txt

@@ -610,6 +610,9 @@ getentropy
 getgrent_r
 getloadavg
 getmntent_r
+getnetbyaddr_r
+getnetbyname_r
+getnetent_r
 getpt
 getpwent_r
 getpwnam_r

src/unix/linux_like/linux/gnu/mod.rs

@@ -1148,6 +1148,30 @@ extern "C" {
         buflen: size_t,
         result: *mut *mut crate::group,
     ) -> c_int;
+    pub fn getnetent_r(
+        result_buf: *mut crate::netent,
+        buf: *mut c_char,
+        buflen: size_t,
+        result: *mut *mut crate::netent,
+        h_errnop: *mut c_int,
+    ) -> c_int;
+    pub fn getnetbyname_r(
+        name: *const c_char,
+        result_buf: *mut crate::netent,
+        buf: *mut c_char,
+        buflen: size_t,
+        result: *mut *mut crate::netent,
+        h_errnop: *mut c_int,
+    ) -> c_int;
+    pub fn getnetbyaddr_r(
+        net: u32,
+        type_: c_int,
+        result_buf: *mut crate::netent,
+        buf: *mut c_char,
+        buflen: size_t,
+        result: *mut *mut crate::netent,
+        h_errnop: *mut c_int,
+    ) -> c_int;
 
     pub fn putpwent(p: *const crate::passwd, stream: *mut crate::FILE) -> c_int;
     pub fn putgrent(grp: *const crate::group, stream: *mut crate::FILE) -> c_int;

src/unix/mod.rs

@@ -209,7 +209,7 @@ s! {
     pub struct netent {
         n_name: *mut c_char,
         n_aliases: *mut *mut c_char,
-        n_addrtype:c_int,
+        n_addrtype: c_int,
         n_net: u32,
     }