Auto merge of #2679 - devnexen:fbsd_flopenapi, r=Amanieu

flopen from libutil on freebsd

Author: bors

libc-test/build.rs

@@ -2293,6 +2293,9 @@ fn test_freebsd(target: &str) {
                 true
             }
 
+            // Those were introduced in FreeBSD 12.
+            "flopen" | "flopenat" if Some(12) > freebsd_ver => true,
+
             _ => false,
         }
     });

libc-test/semver/freebsd.txt

@@ -1484,6 +1484,8 @@ ffsl
 ffsll
 filestat
 filestat_list
+flopen
+flopenat
 fls
 flsl
 flsll

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

@@ -4311,6 +4311,9 @@ extern "C" {
         scale: ::c_int,
         flags: ::c_int,
     ) -> ::c_int;
+
+    pub fn flopen(path: *const ::c_char, flags: ::c_int, ...) -> ::c_int;
+    pub fn flopenat(fd: ::c_int, path: *const ::c_char, flags: ::c_int, ...) -> ::c_int;
 }
 
 #[link(name = "procstat")]