bsd: add setlogin

Author: valpackett

libc-test/semver/dragonfly.txt

@@ -1490,6 +1490,7 @@ setgroups
 sethostid
 sethostname
 setitimer
+setlogin
 setpriority
 setproctitle
 setprogname

libc-test/semver/freebsd.txt

@@ -2134,6 +2134,7 @@ setgroups
 sethostid
 sethostname
 setitimer
+setlogin
 setpriority
 setproctitle
 setprogname

libc-test/semver/netbsd.txt

@@ -1491,6 +1491,7 @@ setgroups
 sethostid
 sethostname
 setitimer
+setlogin
 setpriority
 setproctitle
 setprogname

libc-test/semver/openbsd.txt

@@ -1199,6 +1199,7 @@ setgroups
 sethostid
 sethostname
 setitimer
+setlogin
 setpriority
 setproctitle
 setprogname

src/unix/bsd/mod.rs

@@ -628,6 +628,7 @@ extern "C" {
     pub fn getifaddrs(ifap: *mut *mut ::ifaddrs) -> ::c_int;
     pub fn freeifaddrs(ifa: *mut ::ifaddrs);
     pub fn setgroups(ngroups: ::c_int, ptr: *const ::gid_t) -> ::c_int;
+    pub fn setlogin(name: *const ::c_char) -> ::c_int;
     pub fn ioctl(fd: ::c_int, request: ::c_ulong, ...) -> ::c_int;
     pub fn kqueue() -> ::c_int;
     pub fn unmount(target: *const ::c_char, arg: ::c_int) -> ::c_int;