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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <krb5.h>
#include "k5-platform.h"
static char *prog;
static int quiet = 0;
static void
xusage()
{
fprintf(stderr, "xusage: %s [-c from_ccache] [-e etype] [-f flags] "
"dest_ccache service1 service2 ...\n", prog);
exit(1);
}
static void
do_kcpytkt(int argc, char *argv[], char *fromccachestr, char *etypestr,
int flags);
int
main(int argc, char *argv[])
{
int option;
char *etypestr = NULL, *fromccachestr = NULL;
int flags = 0;
prog = strrchr(argv[0], '/');
prog = (prog != NULL) ? prog + 1 : argv[0];
while ((option = getopt(argc, argv, "c:e:f:hq")) != -1) {
switch (option) {
case 'c':
fromccachestr = optarg;
break;
case 'e':
etypestr = optarg;
break;
case 'f':
flags = atoi(optarg);
break;
case 'q':
quiet = 1;
break;
case 'h':
default:
xusage();
break;
}
}
if (argc - optind < 2)
xusage();
do_kcpytkt(argc - optind, argv + optind, fromccachestr, etypestr, flags);
return 0;
}
static void
do_kcpytkt(int count, char *names[], const char *fromccachestr, char *etypestr,
int flags)
{
krb5_context context;
krb5_error_code ret;
krb5_enctype etype;
krb5_ccache fromccache, destccache;
krb5_principal me;
krb5_creds in_creds, out_creds;
int i, errors, retflags;
char *princ;
ret = krb5_init_context(&context);
if (ret) {
com_err(prog, ret, "while initializing krb5 library");
exit(1);
}
if (etypestr != NULL) {
ret = krb5_string_to_enctype(etypestr, &etype);
if (ret) {
com_err(prog, ret, "while converting etype");
exit(1);
}
retflags = KRB5_TC_MATCH_SRV_NAMEONLY | KRB5_TC_SUPPORTED_KTYPES;
} else {
etype = 0;
retflags = KRB5_TC_MATCH_SRV_NAMEONLY;
}
if (fromccachestr != NULL)
ret = krb5_cc_resolve(context, fromccachestr, &fromccache);
else
ret = krb5_cc_default(context, &fromccache);
if (ret) {
com_err(prog, ret, "while opening source ccache");
exit(1);
}
ret = krb5_cc_get_principal(context, fromccache, &me);
if (ret) {
com_err(prog, ret, "while getting client principal name");
exit(1);
}
ret = krb5_cc_resolve(context, names[0], &destccache);
if (ret) {
com_err(prog, ret, "while opening destination cache");
exit(1);
}
errors = 0;
for (i = 1; i < count; i++) {
memset(&in_creds, 0, sizeof(in_creds));
in_creds.client = me;
ret = krb5_parse_name(context, names[i], &in_creds.server);
if (ret) {
if (!quiet) {
fprintf(stderr, "%s: %s while parsing principal name\n",
names[i], error_message(ret));
}
errors++;
continue;
}
ret = krb5_unparse_name(context, in_creds.server, &princ);
if (ret) {
fprintf(stderr, "%s: %s while printing principal name\n",
names[i], error_message(ret));
errors++;
continue;
}
in_creds.keyblock.enctype = etype;
ret = krb5_cc_retrieve_cred(context, fromccache, retflags,
&in_creds, &out_creds);
if (ret) {
fprintf(stderr, "%s: %s while retrieving credentials\n",
princ, error_message(ret));
krb5_free_unparsed_name(context, princ);
errors++;
continue;
}
ret = krb5_cc_store_cred(context, destccache, &out_creds);
krb5_free_principal(context, in_creds.server);
if (ret) {
fprintf(stderr, "%s: %s while removing credentials\n",
princ, error_message(ret));
krb5_free_cred_contents(context, &out_creds);
krb5_free_unparsed_name(context, princ);
errors++;
continue;
}
krb5_free_unparsed_name(context, princ);
krb5_free_cred_contents(context, &out_creds);
}
krb5_free_principal(context, me);
krb5_cc_close(context, fromccache);
krb5_cc_close(context, destccache);
krb5_free_context(context);
if (errors)
exit(1);
exit(0);
}
|
