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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/* attrib.c - Procedures for handling internal list of attributes
* for accounting and authorization functions.
*
* Copyright (C) 2010, Pawel Krawczyk <pawel.krawczyk@hush.com> and
* Jeroen Nijhof <jeroen@jeroennijhof.nl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program - see the file COPYING.
*
* See `CHANGES' file for revision history.
*/
#include "tacplus.h"
#include "libtac.h"
#include "xalloc.h"
void tac_add_attrib(struct tac_attrib **attr, char *name, char *value) {
tac_add_attrib_pair(attr, name, '=', value);
}
void tac_add_attrib_pair(struct tac_attrib **attr, char *name, char sep, char *value) {
struct tac_attrib *a;
u_char l1 = (u_char) strlen(name);
u_char l2 = (u_char) strlen(value);
int total_len = l1 + l2 + 1; /* "name" + "=" + "value" */
if (total_len > 255) {
TACSYSLOG((LOG_WARNING,\
"%s: attribute `%s' total length exceeds 255 characters, skipping",\
__FUNCTION__, name))
return;
}
/* initialize the list if application passed us a null pointer */
if(*attr == NULL) {
*attr = (struct tac_attrib *) xcalloc(1, sizeof(struct tac_attrib));
a = *attr;
} else {
/* find the last allocated block */
a = *attr;
while(a->next != NULL)
a = a->next; /* a holds last allocated block */
a->next = (struct tac_attrib *) xcalloc(1, sizeof(struct tac_attrib));
a = a->next; /* set current block pointer to the new one */
}
if ( sep != '=' && sep != '*' ) {
sep = '=';
}
/* fill the block */
a->attr_len=total_len;
a->attr = (char *) xcalloc(1, total_len+1);
bcopy(name, a->attr, l1); /* paste name */
*(a->attr+l1)=sep; /* insert seperator "[=*]" */
bcopy(value, (a->attr+l1+1), l2); /* paste value */
*(a->attr+total_len) = '\0'; /* add 0 for safety */
a->next = NULL; /* make sure it's null */
}
void tac_free_attrib(struct tac_attrib **attr) {
struct tac_attrib *a;
struct tac_attrib *b;
if(*attr == NULL)
return;
a = b = *attr;
/* find last allocated block */
do {
a = b;
b = a->next;
free(a->attr);
free(a);
} while (b != NULL);
*attr = NULL;
}
|
