Auto merge of #2523 - devnexen:netbsd_uucred, r=JohnTitor

netbsd add uucred struct

Author: bors

libc-test/build.rs

@@ -1002,6 +1002,7 @@ fn test_netbsd(target: &str) {
         "sys/times.h",
         "sys/timex.h",
         "sys/ucontext.h",
+        "sys/ucred.h",
         "sys/uio.h",
         "sys/un.h",
         "sys/utsname.h",

libc-test/semver/netbsd.txt

@@ -1466,6 +1466,7 @@ utmpx
 utmpxname
 utpname
 utrace
+uucred
 vm_size_t
 wait4
 waitid

src/unix/bsd/netbsdlike/netbsd/mod.rs

@@ -343,6 +343,14 @@ s! {
         pub sc_groups: [::gid_t; 1],
     }
 
+    pub struct uucred {
+        pub cr_unused: ::c_ushort,
+        pub cr_uid: ::uid_t,
+        pub cr_gid: ::gid_t,
+        pub cr_ngroups: ::c_int,
+        pub cr_groups: [::gid_t; NGROUPS_MAX as usize],
+    }
+
     pub struct unpcbid {
         pub unp_pid: ::pid_t,
         pub unp_euid: ::uid_t,
@@ -2012,6 +2020,8 @@ pub const KVME_FLAG_PAGEABLE: ::c_int = 0x000000008;
 pub const KVME_FLAG_GROWS_UP: ::c_int = 0x000000010;
 pub const KVME_FLAG_GROWS_DOWN: ::c_int = 0x000000020;
 
+pub const NGROUPS_MAX: ::c_int = 16;
+
 const_fn! {
     {const} fn _ALIGN(p: usize) -> usize {
         (p + _ALIGNBYTES) & !_ALIGNBYTES