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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* $Source$
* $Author$
*
* Copyright 1991 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* Allocate & prepare a default replay cache for a server.
*/
#if !defined(lint) && !defined(SABER)
static char rcsid_srv_rcache_c[] =
"$Id$";
#endif /* !lint & !SABER */
#include <krb5/krb5.h>
#include <krb5/ext-proto.h>
#include <ctype.h>
#include <stdio.h>
krb5_error_code
krb5_get_server_rcache(piece, rcptr)
const krb5_data *piece;
krb5_rcache *rcptr;
{
krb5_rcache rcache = 0;
char *cachename = 0;
char tmp[4];
extern krb5_deltat krb5_clockskew;
krb5_error_code retval;
int len, p, i;
rcache = (krb5_rcache) malloc(sizeof(*rcache));
if (!rcache)
return ENOMEM;
retval = krb5_rc_resolve_type(&rcache, "dfl");
if (retval) goto cleanup;
len = piece->length + 3 + 1;
for (i = 0; i <= piece->length; i++) {
if (piece->data[i] == '\\')
len++;
else if (!isgraph(piece->data[i]))
len += 3;
}
cachename = malloc(len);
if (!cachename) {
retval = ENOMEM;
goto cleanup;
}
strcpy(cachename, "rc_");
p = 3;
for (i = 0; i < piece->length; i++) {
if (piece->data[i] == '\\') {
cachename[p++] = '\\';
cachename[p++] = '\\';
continue;
}
if (!isgraph(piece->data[i])) {
sprintf(tmp, "%03o", piece->data[i]);
cachename[p++] = '\\';
cachename[p++] = tmp[0];
cachename[p++] = tmp[1];
cachename[p++] = tmp[2];
}
cachename[p++] = piece->data[i];
}
if (retval = krb5_rc_resolve(rcache, cachename))
goto cleanup;
/*
* First try to recover the replay cache; if that doesn't work,
* initialize it.
*/
if (krb5_rc_recover(rcache)) {
if (retval = krb5_rc_initialize(rcache, krb5_clockskew)) {
krb5_rc_close(rcache);
rcache = 0;
goto cleanup;
}
}
*rcptr = rcache;
return 0;
cleanup:
if (rcache)
krb5_xfree(rcache);
if (cachename)
krb5_xfree(cachename);
return retval;
}
|