diff --git a/src/lib.rs b/src/lib.rs
index 94b7e65a69..8cc7916374 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -88,6 +88,14 @@ pub fn getcwd(buf: &mut [u8]) -> Result<usize> {
     unsafe { syscall2(SYS_GETCWD, buf.as_mut_ptr() as usize, buf.len()) }
 }
 
+pub fn getegid() -> Result<usize> {
+    unsafe { syscall0(SYS_GETEGID) }
+}
+
+pub fn geteuid() -> Result<usize> {
+    unsafe { syscall0(SYS_GETEUID) }
+}
+
 pub fn getgid() -> Result<usize> {
     unsafe { syscall0(SYS_GETGID) }
 }
diff --git a/src/number.rs b/src/number.rs
index 525da1ca3f..d5c5856367 100644
--- a/src/number.rs
+++ b/src/number.rs
@@ -35,6 +35,8 @@ pub const SYS_EXECVE: usize =   11;
 pub const SYS_EXIT: usize =     1;
 pub const SYS_FUTEX: usize =    240;
 pub const SYS_GETCWD: usize =   183;
+pub const SYS_GETEGID: usize =  202;
+pub const SYS_GETEUID: usize =  201;
 pub const SYS_GETGID: usize =   200;
 pub const SYS_GETPID: usize =   20;
 pub const SYS_GETUID: usize =   199;