/* Become the user and group(s) specified by PW. */
-void change_identity ( const struct passwd *pw )
+const char *change_identity_e2str ( const struct passwd *pw )
{
if ( initgroups ( pw-> pw_name, pw-> pw_gid ) == -1 )
- perror_msg_and_die ( "cannot set groups" );
+ return "cannot set groups";
endgrent ( );
if ( setgid ( pw-> pw_gid ))
- perror_msg_and_die ( "cannot set group id" );
+ return "cannot set group id";
if ( setuid ( pw->pw_uid ))
- perror_msg_and_die ( "cannot set user id" );
+ 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 );
+}