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