]>
Commit | Line | Data |
---|---|---|
013096e5 | 1 | /* $Id$ |
2 | * | |
3 | * Random client utilities. | |
4 | * | |
5 | * Copyright (C) 1999 by the Massachusetts Institute of Technology | |
6 | * For copying and distribution information, please see the file | |
7 | * <mit-copyright.h>. | |
8 | */ | |
9 | ||
10 | #include <mit-copyright.h> | |
11 | #include <moira.h> | |
12 | #include <mrclient.h> | |
13 | ||
013096e5 | 14 | #include <com_err.h> |
15 | #include <krb.h> | |
991417e4 | 16 | #include <krb5.h> |
013096e5 | 17 | |
654e3753 | 18 | #include <sys/types.h> |
19 | ||
20 | #ifdef HAVE_UNAME | |
21 | #include <sys/utsname.h> | |
22 | #endif | |
23 | ||
24 | #ifndef _WIN32 | |
25 | #include <sys/socket.h> | |
26 | #include <netdb.h> | |
27 | #include <netinet/in.h> | |
28 | #endif /* _WIN32 */ | |
29 | ||
30 | #include <ctype.h> | |
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
33 | #include <string.h> | |
34 | ||
013096e5 | 35 | RCSID("$Header$"); |
36 | ||
37 | extern char *whoami; | |
991417e4 | 38 | extern krb5_context context; |
013096e5 | 39 | |
4342cf40 | 40 | int mrcl_connect(char *server, char *client, int version, int auth) |
013096e5 | 41 | { |
42 | int status; | |
43 | char *motd; | |
44 | ||
45 | status = mr_connect(server); | |
46 | if (status) | |
47 | { | |
48 | com_err(whoami, status, "while connecting to Moira"); | |
49 | return MRCL_FAIL; | |
50 | } | |
51 | ||
52 | status = mr_motd(&motd); | |
53 | if (status) | |
54 | { | |
55 | mr_disconnect(); | |
56 | com_err(whoami, status, "while checking server status"); | |
57 | return MRCL_FAIL; | |
58 | } | |
59 | if (motd) | |
60 | { | |
61 | fprintf(stderr, "The Moira server is currently unavailable:\n%s\n", | |
62 | motd); | |
63 | mr_disconnect(); | |
64 | return MRCL_FAIL; | |
65 | } | |
66 | ||
4342cf40 | 67 | status = mr_version(version); |
68 | if (status) | |
69 | { | |
70 | if (status == MR_UNKNOWN_PROC) | |
71 | { | |
72 | if (version > 2) | |
2e899a98 | 73 | status = MR_VERSION_HIGH; |
4342cf40 | 74 | else |
2e899a98 | 75 | status = MR_SUCCESS; |
4342cf40 | 76 | } |
77 | ||
78 | if (status == MR_VERSION_HIGH) | |
79 | { | |
80 | com_err(whoami, 0, "Warning: This client is running newer code than the server."); | |
81 | com_err(whoami, 0, "Some operations may not work."); | |
82 | } | |
2e899a98 | 83 | else if (status && status != MR_VERSION_LOW) |
4342cf40 | 84 | { |
85 | com_err(whoami, status, "while setting query version number."); | |
86 | mr_disconnect(); | |
87 | return MRCL_FAIL; | |
88 | } | |
89 | } | |
90 | ||
013096e5 | 91 | if (auth) |
92 | { | |
991417e4 | 93 | status = mr_krb5_auth(client); |
e357a0ec | 94 | |
95 | /* New client talking to old server, try krb4. */ | |
96 | if (status == MR_UNKNOWN_PROC) | |
97 | status = mr_auth(client); | |
98 | ||
013096e5 | 99 | if (status) |
100 | { | |
101 | com_err(whoami, status, "while authenticating to Moira."); | |
102 | mr_disconnect(); | |
103 | return MRCL_AUTH_ERROR; | |
104 | } | |
105 | } | |
106 | ||
107 | return MRCL_SUCCESS; | |
108 | } | |
109 | ||
110 | char *mrcl_krb_user(void) | |
111 | { | |
991417e4 | 112 | int flags = 0; |
113 | krb5_ccache cache = NULL; | |
e357a0ec | 114 | krb5_principal princ = NULL; |
991417e4 | 115 | krb5_error_code status; |
e357a0ec | 116 | char *username = NULL; |
991417e4 | 117 | |
118 | if (!context) | |
119 | krb5_init_context(&context); | |
013096e5 | 120 | |
991417e4 | 121 | status = krb5_cc_default(context, &cache); |
122 | if (status) | |
013096e5 | 123 | { |
991417e4 | 124 | com_err(whoami, status, "while reading Kerberos ticket file."); |
e357a0ec | 125 | goto out; |
013096e5 | 126 | } |
127 | ||
991417e4 | 128 | status = krb5_cc_get_principal(context, cache, &princ); |
129 | if (status) | |
013096e5 | 130 | { |
991417e4 | 131 | com_err(whoami, status, "while retrieving principal name."); |
e357a0ec | 132 | goto out; |
013096e5 | 133 | } |
134 | ||
e357a0ec | 135 | username = malloc(krb5_princ_component(context, princ, 0)->length + 1); |
136 | if (!username) | |
137 | goto out; | |
138 | ||
139 | strncpy(username, krb5_princ_component(context, princ, 0)->data, | |
140 | krb5_princ_component(context, princ, 0)->length); | |
141 | username[krb5_princ_component(context, princ, 0)->length] = '\0'; | |
142 | ||
143 | out: | |
144 | if (cache) | |
145 | krb5_cc_close(context, cache); | |
146 | if (princ) | |
147 | krb5_free_principal(context, princ); | |
991417e4 | 148 | |
e357a0ec | 149 | return username; |
013096e5 | 150 | } |
654e3753 | 151 | |
152 | char *partial_canonicalize_hostname(char *s) | |
153 | { | |
154 | char buf[256], *cp; | |
155 | static char *def_domain = NULL; | |
156 | ||
157 | if (!def_domain) | |
158 | { | |
159 | if (mr_host(buf, sizeof(buf)) == MR_SUCCESS) | |
160 | { | |
161 | cp = strchr(buf, '.'); | |
162 | if (cp) | |
163 | def_domain = strdup(++cp); | |
164 | } | |
165 | else | |
166 | { | |
167 | struct hostent *hp; | |
168 | #ifdef HAVE_UNAME | |
169 | struct utsname name; | |
170 | uname(&name); | |
171 | hp = gethostbyname(name.nodename); | |
172 | #else | |
173 | char name[256]; | |
174 | gethostname(name, sizeof(name)); | |
175 | name[sizeof(name)-1] = 0; | |
176 | hp = gethostbyname(name); | |
177 | #endif /* HAVE_UNAME */ | |
178 | cp = strchr(hp->h_name, '.'); | |
179 | if (cp) | |
180 | def_domain = strdup(++cp); | |
181 | } | |
182 | if (!def_domain) | |
183 | def_domain = ""; | |
184 | } | |
185 | ||
186 | if (strchr(s, '.') || strchr(s, '*')) | |
187 | return s; | |
188 | sprintf(buf, "%s.%s", s, def_domain); | |
189 | free(s); | |
190 | return strdup(buf); | |
191 | } |