read_key: remove handling for ctrl-up/down, we don't use that. -12 bytes

[oweals/busybox.git] / libbb / change_identity.c

diff --git a/libbb/change_identity.c b/libbb/change_identity.c
index 819b216e0e8a5e2441ca6391ef55097186203521..619db09a85e211e2c543e72d08cbdd3d66cbe431 100644 (file)
--- a/libbb/change_identity.c
+++ b/libbb/change_identity.c
@@ -28,27 +28,14 @@
  * SUCH DAMAGE.
  */
 
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <string.h>
-#include <stdlib.h>
-#include <syslog.h>
-#include <ctype.h>
-
 #include "libbb.h"
 
-
 /* Become the user and group(s) specified by PW.  */
-void change_identity ( const struct passwd *pw )
+void FAST_FUNC change_identity(const struct passwd *pw)
 {
-       if ( initgroups ( pw-> pw_name, pw-> pw_gid ) == -1 )
-               perror_msg_and_die ( "cannot set groups" );
-       endgrent ( );
-
-       if ( setgid ( pw-> pw_gid ))
-               perror_msg_and_die ( "cannot set group id" );
-       if ( setuid ( pw->pw_uid ))
-               perror_msg_and_die ( "cannot set user id" );
+       if (initgroups(pw->pw_name, pw->pw_gid) == -1)
+               bb_perror_msg_and_die("can't set groups");
+       endgrent(); /* helps to close a fd used internally by libc */
+       xsetgid(pw->pw_gid);
+       xsetuid(pw->pw_uid);
 }
-