adding getentropy/getrandom to dragonflybsd.

(apply <#3618> to `main`)
(cherry picked from commit e79e95f)

Author: devnexen

libc-test/semver/dragonfly.txt

@@ -326,6 +326,9 @@ GLOB_NOESCAPE
 GLOB_NOMATCH
 GLOB_NOSORT
 GLOB_NOSPACE
+GRND_INSECURE
+GRND_NONBLOCK
+GRND_RANDOM
 HW_BYTEORDER
 HW_DISKNAMES
 HW_DISKSTATS
@@ -1308,6 +1311,7 @@ fstatfs
 futimes
 getdomainname
 getdtablesize
+getentropy
 getgrent
 getgrent_r
 getgrgid
@@ -1331,6 +1335,7 @@ getprogname
 getpwent
 getpwent_r
 getpwnam_r
+getrandom
 getresgid
 getresuid
 getrlimit

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

@@ -3997,11 +3997,6 @@ pub const F_SEAL_WRITE: ::c_int = 8;
 // for use with fspacectl
 pub const SPACECTL_DEALLOC: ::c_int = 1;
 
-// For getrandom()
-pub const GRND_NONBLOCK: ::c_uint = 0x1;
-pub const GRND_RANDOM: ::c_uint = 0x2;
-pub const GRND_INSECURE: ::c_uint = 0x4;
-
 // For realhostname* api
 pub const HOSTNAME_FOUND: ::c_int = 0;
 pub const HOSTNAME_INCORRECTNAME: ::c_int = 1;
@@ -5513,8 +5508,6 @@ extern "C" {
 
     pub fn fdatasync(fd: ::c_int) -> ::c_int;
 
-    pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
-    pub fn getentropy(buf: *mut ::c_void, buflen: ::size_t) -> ::c_int;
     pub fn elf_aux_info(aux: ::c_int, buf: *mut ::c_void, buflen: ::c_int) -> ::c_int;
     pub fn setproctitle_fast(fmt: *const ::c_char, ...);
     pub fn timingsafe_bcmp(a: *const ::c_void, b: *const ::c_void, len: ::size_t) -> ::c_int;

src/unix/bsd/freebsdlike/mod.rs

@@ -1450,6 +1450,11 @@ pub const RB_GDB: ::c_int = 0x8000;
 pub const RB_MUTE: ::c_int = 0x10000;
 pub const RB_SELFTEST: ::c_int = 0x20000;
 
+// For getrandom()
+pub const GRND_NONBLOCK: ::c_uint = 0x1;
+pub const GRND_RANDOM: ::c_uint = 0x2;
+pub const GRND_INSECURE: ::c_uint = 0x4;
+
 safe_f! {
     pub {const} fn WIFCONTINUED(status: ::c_int) -> bool {
         status == 0x13
@@ -1819,6 +1824,9 @@ extern "C" {
         abs_timeout: *const ::timespec,
     ) -> ::c_int;
     pub fn mq_unlink(name: *const ::c_char) -> ::c_int;
+
+    pub fn getrandom(buf: *mut ::c_void, buflen: ::size_t, flags: ::c_uint) -> ::ssize_t;
+    pub fn getentropy(buf: *mut ::c_void, buflen: ::size_t) -> ::c_int;
 }
 
 #[link(name = "util")]