1/* $NetBSD$ */ 2 3#ifndef _SET_EUGID_H_INCLUDED_ 4#define _SET_EUGID_H_INCLUDED_ 5 6/*++ 7/* NAME 8/* set_eugid 3h 9/* SUMMARY 10/* set effective user and group attributes 11/* SYNOPSIS 12/* #include <set_eugid.h> 13/* DESCRIPTION 14/* .nf 15 16 /* External interface. */ 17 18extern void set_eugid(uid_t, gid_t); 19 20 /* 21 * The following macros open and close a block that runs at a different 22 * privilege level. To make mistakes with stray curly braces less likely, we 23 * shape the macros below as the head and tail of a do-while loop. 24 */ 25#define SAVE_AND_SET_EUGID(uid, gid) do { \ 26 uid_t __set_eugid_uid = geteuid(); \ 27 gid_t __set_eugid_gid = getegid(); \ 28 set_eugid((uid), (gid)); 29 30#define RESTORE_SAVED_EUGID() \ 31 set_eugid(__set_eugid_uid, __set_eugid_gid); \ 32 } while (0) 33 34/* LICENSE 35/* .ad 36/* .fi 37/* The Secure Mailer license must be distributed with this software. 38/* AUTHOR(S) 39/* Wietse Venema 40/* IBM T.J. Watson Research 41/* P.O. Box 704 42/* Yorktown Heights, NY 10598, USA 43/*--*/ 44 45#endif 46