blob: cec01062b62eb58f9b4ac5b323b02537a73464ba (
plain)
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
|
/*
* SPDX-FileCopyrightText: 2007 - 2009, Nicolas François
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/*
* According to the Linux-PAM documentation:
*
* 4.1. Care about standard library calls
*
* In general, writers of authorization-granting applications should
* assume that each module is likely to call any or all 'libc' functions.
* For 'libc' functions that return pointers to static/dynamically
* allocated structures (ie. the library allocates the memory and the
* user is not expected to 'free()' it) any module call to this function
* is likely to corrupt a pointer previously obtained by the application.
* The application programmer should either re-call such a 'libc'
* function after a call to the Linux-PAM library, or copy the structure
* contents to some safe area of memory before passing control to the
* Linux-PAM library.
*
* Two important function classes that fall into this category are
* getpwnam(3) and syslog(3).
*
* This file provides wrapper to the prefix_getpwnam or prefix_getpwnam_r functions.
*/
#include <config.h>
#include "pwio.h"
#define LOOKUP_TYPE struct passwd
#define FUNCTION_NAME prefix_getpwnam
#define ARG_TYPE const char *
#define ARG_NAME name
#define DUP_FUNCTION __pw_dup
#define HAVE_FUNCTION_R HAVE_FGETPWENT_R
#include "xgetXXbyYY.c"
|
