sha3: code shrink

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

diff --git a/libbb/change_identity.c b/libbb/change_identity.c
index adebad8ed280bd9f6cfb141c3cdfbdaf4067f816..619db09a85e211e2c543e72d08cbdd3d66cbe431 100644 (file)
--- a/libbb/change_identity.c
+++ b/libbb/change_identity.c
@@ -28,35 +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.  */
-const char *change_identity_e2str ( const struct passwd *pw )
+void FAST_FUNC change_identity(const struct passwd *pw)
 {
-       if ( initgroups ( pw-> pw_name, pw-> pw_gid ) == -1 )
-               return "cannot set groups";
-       endgrent ( );
-
-       if ( setgid ( pw-> pw_gid ))
-               return "cannot set group id";
-       if ( setuid ( pw->pw_uid ))
-               return "cannot set user id";
-       return NULL;
-}
-
-void change_identity ( const struct passwd *pw )
-{
-       const char *err_msg = change_identity_e2str(pw);
-
-       if(err_msg)
-               bb_perror_msg_and_die ( "%s", err_msg );
+       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);
 }