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1 /*
2 * Project : tin - a Usenet reader
3 * Module : nntplib.h
4 * Author : I.Lea
5 * Created : 1991-04-01
6 * Updated : 2018-02-10
7 * Notes : nntp.h 1.5.11/1.6 with extensions for tin
8 *
9 * Copyright (c) 1991-2021 Iain Lea <iain@bricbrac.de>
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 *
16 * 1. Redistributions of source code must retain the above copyright notice,
17 * this list of conditions and the following disclaimer.
18 *
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 *
23 * 3. Neither the name of the copyright holder nor the names of its
24 * contributors may be used to endorse or promote products derived from
25 * this software without specific prior written permission.
26 *
27 * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40
41 #ifndef NNTPLIB_H
42 #define NNTPLIB_H 1
43
44 #ifndef NNTP_SERVER_FILE
45 # define NNTP_SERVER_FILE "/etc/nntpserver"
46 #endif /* !NNTP_SERVER_FILE */
47
48 #define NNTP_TCP_NAME "nntp"
49 #define NNTP_TCP_PORT "119"
50
51 /*
52 * # times to try and reconnect to server after timeout
53 */
54 #define NNTP_TRY_RECONNECT 2
55
56 /*
57 * @(#)Header: nntp.h,v 1.81 92/03/12 02:08:31 sob Exp $
58 *
59 * First digit:
60 *
61 * 1xx Informative message
62 * 2xx Command ok
63 * 3xx Command ok so far, continue
64 * 4xx Command was correct, but couldn't be performed
65 * for some specified reason.
66 * 5xx Command unimplemented, incorrect, or a
67 * program error has occurred.
68 *
69 * Second digit:
70 *
71 * x0x Connection, setup, miscellaneous
72 * x1x Newsgroup selection
73 * x2x Article selection
74 * x3x Distribution
75 * x4x Posting
76 */
77 #if 0 /* unused */
78 # define CHAR_INF '1'
79 # define CHAR_OK '2'
80 # define CHAR_CONT '3'
81 # define CHAR_ERR '4'
82 # define CHAR_FATAL '5'
83 #endif /* 0 */
84
85 /* TODO: cleanup against RFC 2980, RFC 3977, RFC 4643, RFC 6048, RFC 8054 */
86 #define INF_HELP 100 /* Help text on way */
87 #define INF_CAPABILITIES 101 /* Capability list follows */
88 #define INF_DATE 111 /* yyyymmddhhmmss Server date and time */
89
90 #define OK_CANPOST 200 /* Hello; you can post */
91 #define OK_NOPOST 201 /* Hello; you can't post */
92 #define OK_EXTENSIONS 202 /* extensions supported follow */
93 #define OK_GOODBYE 205 /* Closing connection */
94 #define OK_COMPRESS 206 /* Compression active */
95 #define OK_GROUP 211 /* Group selected */
96 #define OK_GROUPS 215 /* Newsgroups follow */
97 #define OK_MOTD 215 /* News motd follows */
98
99 #define OK_ARTICLE 220 /* Article (head & body) follows */
100 #define OK_HEAD 221 /* Head follows */
101 #define OK_XHDR 221 /* headers follow */
102 #define OK_XPAT 221 /* headers follow */
103 #define OK_BODY 222 /* Body follows */
104 #define OK_NOTEXT 223 /* No text sent -- stat, next, last */
105 #define OK_XOVER 224 /* .overview data follows */
106 #define OK_HDR 225 /* headers follow */
107 #define OK_NEWNEWS 230 /* New articles by message-id follow */
108 #define OK_NEWGROUPS 231 /* New newsgroups follow */
109 #define OK_XFERED 235 /* Article transferred successfully */
110 #define OK_POSTED 240 /* Article posted successfully */
111 #define OK_AUTHSYS 280 /* Authorization system ok */
112 #define OK_AUTH 281 /* Authorization (user/pass) ok */
113 #define OK_BIN 282 /* binary data follows */
114 #define OK_LIST 282 /* list follows */
115 #define OK_AUTH_SASL 283 /* authentication accepted (with success data) */
116
117 #define CONT_XFER 335 /* Continue to send article */
118 #define CONT_POST 340 /* Continue to post article */
119 #define NEED_AUTHINFO 380 /* authorization is required */
120 #define NEED_AUTHDATA 381 /* <type> authorization data required */
121 #define NEED_AUTHDATA_SASL 383 /* continue with SASL exchange */
122
123 #define ERR_GOODBYE 400 /* Have to hang up for some reason */
124 #define ERR_STATE 401 /* The client must change the state of the connection */
125 #define ERR_COMPRESS 403 /* Unable to activate compression */
126 #define ERR_NOGROUP 411 /* No such newsgroup */
127 #define ERR_NCING 412 /* Not currently in newsgroup */
128
129 #define ERR_NOCRNT 420 /* No current article selected */
130 #define ERR_NONEXT 421 /* No next article in this group */
131 #define ERR_NOPREV 422 /* No previous article in this group */
132 #define ERR_NOARTIG 423 /* No such article in this group */
133 #define ERR_NOART 430 /* No such article at all */
134 #define ERR_GOTIT 435 /* Already got that article, don't send */
135 #define ERR_XFERFAIL 436 /* Transfer failed */
136 #define ERR_XFERRJCT 437 /* Article rejected, don't resend */
137 #define ERR_NOPOST 440 /* Posting not allowed */
138 #define ERR_POSTFAIL 441 /* Posting failed */
139 #define ERR_NOAUTH 480 /* authorization required for command */
140 #define ERR_AUTHFAIL 481 /* Authentication failed/rejected */
141 #define ERR_AUTHSEQ 482 /* Authentication commands issued out of sequence or SASL protocol error */
142 #define ERR_ENCRYPT 483 /* encrpytion required */
143
144 #define ERR_COMMAND 500 /* Command not recognized */
145 #define ERR_CMDSYN 501 /* Command syntax error */
146 #define ERR_ACCESS 502 /* Access to server denied */
147 #define ERR_FAULT 503 /* Program fault, command not performed */
148 #define ERR_MOTD 503 /* No news motd file */
149 #define ERR_COMPRESS_ALG 503 /* Compression algorithm not supported */
150 #define ERR_AUTHBAD 580 /* Authorization Failed */
151
152 /*
153 * RFC 977 defines this; don't change it.
154 */
155 #define NNTP_STRLEN 512
156 /*
157 * RFC 3977 3.1
158 */
159 #define NNTP_GRPLEN 497
160
161 /*
162 * OVERVIEW.FMT field types
163 */
164 enum f_type { OVER_T_ERROR, OVER_T_INT, OVER_T_STRING, OVER_T_FSTRING };
165
166 /*
167 * CAPABILITIES
168 * remember to update init.c and nntplib.c:check_extensions() if you change
169 * t_capabilities
170 */
171 enum extension_type { NONE, CAPABILITIES, BROKEN };
172
173 enum sasl_types {
174 SASL_NONE = 0,
175 SASL_PLAIN = 1 << 0,
176 SASL_CRAM_MD5 = 1 << 1,
177 SASL_DIGEST_MD5 = 1 << 2,
178 SASL_GSSAPI = 1 << 3,
179 SASL_EXTERNAL = 1 << 4,
180 SASL_OTP = 1 << 5,
181 SASL_NTLM = 1 << 6,
182 SASL_LOGIN = 1 << 7
183 };
184 enum c_algorithms { COMPRESS_NONE, COMPRESS_DEFLATE };
185
186 struct t_capabilities {
187 enum extension_type type; /* NONE, CAPABILITIES, BROKEN */
188 unsigned int version; /* CAPABILITIES version */
189 t_bool mode_reader:1; /* MODE-READER: "MODE READER" */
190 t_bool reader:1; /* READER: "ARTICLE", "BODY", "DATE", "GROUP", "LAST", "LISTGROUP", "NEWGROUPS", "NEXT" */
191 t_bool post:1; /* POST */
192 t_bool list_active:1; /* LIST ACTIVE */
193 t_bool list_active_times:1; /* LIST ACTIVE.TIMES, optional */
194 t_bool list_distrib_pats:1; /* LIST DISTRIB.PATS, optional */
195 t_bool list_headers:1; /* LIST HEADERS */
196 char *headers_range; /* list of headers by range */
197 char *headers_id; /* list of headers by id */
198 t_bool list_newsgroups:1; /* LIST NEWSGROUPS */
199 t_bool list_overview_fmt:1; /* LIST OVERVIEW.FMT */
200 t_bool list_motd:1; /* LIST MOTD, "private" extension */
201 t_bool list_subscriptions:1; /* LIST SUBSCRIPTIONS, "private" extension, RFC 2980 */
202 t_bool list_distributions:1; /* LIST DISTRIBUTIONS, "private" extension, RFC 2980 */
203 t_bool list_moderators:1; /* LIST MODERATORS, "private" extension */
204 t_bool list_counts:1; /* LIST COUNTS, "private" extension */
205 t_bool xpat:1; /* XPAT, "private" extension, RFC 2980 */
206 t_bool hdr:1; /* HDR: "HDR", "LIST HEADERS" */
207 const char *hdr_cmd; /* [X]HDR */
208 t_bool over:1; /* OVER: "OVER", "LIST OVERVIEW.FMT" */
209 t_bool over_msgid:1; /* OVER: "OVER mid" */
210 const char *over_cmd; /* [X]OVER */
211 t_bool newnews:1; /* NEWNEWS */
212 char *implementation; /* IMPLEMENTATION */
213 t_bool starttls:1; /* STARTTLS */
214 t_bool authinfo_user:1; /* AUTHINFO USER/PASS */
215 t_bool authinfo_sasl:1; /* AUTHINFO SASL */
216 t_bool authinfo_state:1; /* AUTHINFO not supported in current state */
217 enum sasl_types sasl; /* SASL_NONE, SASL_PLAIN, SASL_CRAM_MD5, SASL_DIGEST_MD5, SASL_GSSAPI, SASL_EXTERNAL, SASL_OTP, SASL_NTLM, SASL_LOGIN */
218 t_bool compress:1; /* COMPRESS */
219 enum c_algorithms compress_algorithm; /* COMPRESS_NONE, COMPRESS_DEFLATE */
220 #if 0
221 t_bool streaming:1; /* STREAMING: "MODE STREAM", "CHECK", "TAKETHIS" */
222 t_bool ihave:1; /* IHAVE: "IHAVE" */
223 #endif /* 0 */
224 t_bool broken_listgroup:1; /* LISTGROUP doesn't select newsgroup */
225 };
226
227 #endif /* !NNTPLIB_H */