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authorColin Watson <cjwatson@debian.org>2007-12-23 15:20:40 +0000
committerColin Watson <cjwatson@debian.org>2007-12-23 15:20:40 +0000
commit70847d299887abb96f8703ca99db6d817b78960e (patch)
treef8e6473c82fb339cbbb1d6598a9dc1c7f122c7cc /radix.c
parent09bfb50d0dc78390593749e6f37e403da404dc94 (diff)
parent086ea76990b1e6287c24b6db74adffd4605eb3b0 (diff)
Import OpenSSH 4.7p1.
Diffstat (limited to 'radix.c')
-rw-r--r--radix.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/radix.c b/radix.c
new file mode 100644
index 000000000..c680d6bf3
--- /dev/null
+++ b/radix.c
@@ -0,0 +1,158 @@
1/*
2 * Copyright (c) 1999 Dug Song. All rights reserved.
3 * Copyright (c) 2002 Markus Friedl. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "includes.h"
27#include "uuencode.h"
28
29RCSID("$OpenBSD: radix.c,v 1.22 2002/09/09 14:54:15 markus Exp $");
30
31#ifdef AFS
32#include <krb.h>
33
34#include <radix.h>
35#include "bufaux.h"
36
37int
38creds_to_radix(CREDENTIALS *creds, u_char *buf, size_t buflen)
39{
40 Buffer b;
41 int ret;
42
43 buffer_init(&b);
44
45 buffer_put_char(&b, 1); /* version */
46
47 buffer_append(&b, creds->service, strlen(creds->service));
48 buffer_put_char(&b, '\0');
49 buffer_append(&b, creds->instance, strlen(creds->instance));
50 buffer_put_char(&b, '\0');
51 buffer_append(&b, creds->realm, strlen(creds->realm));
52 buffer_put_char(&b, '\0');
53 buffer_append(&b, creds->pname, strlen(creds->pname));
54 buffer_put_char(&b, '\0');
55 buffer_append(&b, creds->pinst, strlen(creds->pinst));
56 buffer_put_char(&b, '\0');
57
58 /* Null string to repeat the realm. */
59 buffer_put_char(&b, '\0');
60
61 buffer_put_int(&b, creds->issue_date);
62 buffer_put_int(&b, krb_life_to_time(creds->issue_date,
63 creds->lifetime));
64 buffer_append(&b, creds->session, sizeof(creds->session));
65 buffer_put_short(&b, creds->kvno);
66
67 /* 32 bit size + data */
68 buffer_put_string(&b, creds->ticket_st.dat, creds->ticket_st.length);
69
70 ret = uuencode(buffer_ptr(&b), buffer_len(&b), (char *)buf, buflen);
71
72 buffer_free(&b);
73 return ret;
74}
75
76#define GETSTRING(b, t, tlen) \
77 do { \
78 int i, found = 0; \
79 for (i = 0; i < tlen; i++) { \
80 if (buffer_len(b) == 0) \
81 goto done; \
82 t[i] = buffer_get_char(b); \
83 if (t[i] == '\0') { \
84 found = 1; \
85 break; \
86 } \
87 } \
88 if (!found) \
89 goto done; \
90 } while(0)
91
92int
93radix_to_creds(const char *buf, CREDENTIALS *creds)
94{
95 Buffer b;
96 u_char *space;
97 char c, version, *p;
98 u_int endTime, len;
99 int blen, ret;
100
101 ret = 0;
102 blen = strlen(buf);
103
104 /* sanity check for size */
105 if (blen > 8192)
106 return 0;
107
108 buffer_init(&b);
109 space = buffer_append_space(&b, blen);
110
111 /* check version and length! */
112 len = uudecode(buf, space, blen);
113 if (len < 1)
114 goto done;
115
116 version = buffer_get_char(&b);
117
118 GETSTRING(&b, creds->service, sizeof creds->service);
119 GETSTRING(&b, creds->instance, sizeof creds->instance);
120 GETSTRING(&b, creds->realm, sizeof creds->realm);
121 GETSTRING(&b, creds->pname, sizeof creds->pname);
122 GETSTRING(&b, creds->pinst, sizeof creds->pinst);
123
124 if (buffer_len(&b) == 0)
125 goto done;
126
127 /* Ignore possibly different realm. */
128 while (buffer_len(&b) > 0 && (c = buffer_get_char(&b)) != '\0')
129 ;
130
131 if (buffer_len(&b) == 0)
132 goto done;
133
134 creds->issue_date = buffer_get_int(&b);
135
136 endTime = buffer_get_int(&b);
137 creds->lifetime = krb_time_to_life(creds->issue_date, endTime);
138
139 len = buffer_len(&b);
140 if (len < sizeof(creds->session))
141 goto done;
142 memcpy(&creds->session, buffer_ptr(&b), sizeof(creds->session));
143 buffer_consume(&b, sizeof(creds->session));
144
145 creds->kvno = buffer_get_short(&b);
146
147 p = buffer_get_string(&b, &len);
148 if (len < 0 || len > sizeof(creds->ticket_st.dat))
149 goto done;
150 memcpy(&creds->ticket_st.dat, p, len);
151 creds->ticket_st.length = len;
152
153 ret = 1;
154done:
155 buffer_free(&b);
156 return ret;
157}
158#endif /* AFS */