Auto merge of #2627 - devnexen:audit_fbsd_intro, r=Amanieu

freebsd audit api introduction.

libc-test/build.rs

@@ -1802,6 +1802,7 @@ fn test_freebsd(target: &str) {
     headers! { cfg:
                 "aio.h",
                 "arpa/inet.h",
+                "bsm/audit.h",
                 "ctype.h",
                 "dirent.h",
                 "dlfcn.h",

libc-test/semver/freebsd.txt

@@ -1416,6 +1416,11 @@ arc4random_buf
 arc4random_uniform
 arphdr
 atof
+au_asid_t
+au_id_t
+au_mask_t
+au_tid_t
+auditinfo_t
 backtrace
 backtrace_symbols
 backtrace_symbols_fd
@@ -1754,6 +1759,7 @@ semop
 sendfile
 sendmmsg
 sendmsg
+setaudit
 setdomainname
 setgrent
 setgroups

src/unix/bsd/freebsdlike/freebsd/mod.rs

@@ -41,6 +41,9 @@ pub type caddr_t = *mut ::c_char;
 
 pub type fhandle_t = fhandle;
 
+pub type au_id_t = ::uid_t;
+pub type au_asid_t = ::pid_t;
+
 // It's an alias over "struct __kvm_t". However, its fields aren't supposed to be used directly,
 // making the type definition system dependent. Better not bind it exactly.
 pub type kvm_t = ::c_void;
@@ -967,6 +970,22 @@ s! {
         pub ifc_ifcu: __c_anonymous_ifc_ifcu,
     }
 
+    pub struct au_mask_t {
+        pub am_success: ::c_uint,
+        pub am_failure: ::c_uint,
+    }
+
+    pub struct au_tid_t {
+        pub port: u32,
+        pub machine: u32,
+    }
+
+    pub struct auditinfo_t {
+        pub ai_auid: ::au_id_t,
+        pub ai_mask: ::au_mask_t,
+        pub ai_termid: au_tid_t,
+        pub ai_asid: ::au_asid_t,
+    }
 }
 
 s_no_extra_traits! {
@@ -4182,6 +4201,7 @@ extern "C" {
         flags: ::c_int,
     ) -> ::c_int;
     pub fn memfd_create(name: *const ::c_char, flags: ::c_uint) -> ::c_int;
+    pub fn setaudit(auditinfo: *const auditinfo_t) -> ::c_int;
 }
 
 #[link(name = "kvm")]