extern.h revision 1.33 1 /* $NetBSD: extern.h,v 1.33 2000/11/13 11:50:46 itojun Exp $ */
2
3 /*-
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)extern.h 8.2 (Berkeley) 4/4/94
36 */
37
38 /*-
39 * Copyright (c) 1997-2000 The NetBSD Foundation, Inc.
40 * All rights reserved.
41 *
42 * This code is derived from software contributed to The NetBSD Foundation
43 * by Luke Mewburn.
44 *
45 * Redistribution and use in source and binary forms, with or without
46 * modification, are permitted provided that the following conditions
47 * are met:
48 * 1. Redistributions of source code must retain the above copyright
49 * notice, this list of conditions and the following disclaimer.
50 * 2. Redistributions in binary form must reproduce the above copyright
51 * notice, this list of conditions and the following disclaimer in the
52 * documentation and/or other materials provided with the distribution.
53 * 3. All advertising materials mentioning features or use of this software
54 * must display the following acknowledgement:
55 * This product includes software developed by the NetBSD
56 * Foundation, Inc. and its contributors.
57 * 4. Neither the name of The NetBSD Foundation nor the names of its
58 * contributors may be used to endorse or promote products derived
59 * from this software without specific prior written permission.
60 *
61 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
62 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
63 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
64 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
65 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
66 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
67 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
68 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
69 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
70 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
71 * POSSIBILITY OF SUCH DAMAGE.
72 */
73
74 /*
75 * Copyright (C) 1997 and 1998 WIDE Project.
76 * All rights reserved.
77 *
78 * Redistribution and use in source and binary forms, with or without
79 * modification, are permitted provided that the following conditions
80 * are met:
81 * 1. Redistributions of source code must retain the above copyright
82 * notice, this list of conditions and the following disclaimer.
83 * 2. Redistributions in binary form must reproduce the above copyright
84 * notice, this list of conditions and the following disclaimer in the
85 * documentation and/or other materials provided with the distribution.
86 * 3. Neither the name of the project nor the names of its contributors
87 * may be used to endorse or promote products derived from this software
88 * without specific prior written permission.
89 *
90 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
91 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
92 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
93 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
94 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
95 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
96 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
97 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
98 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
99 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
100 * SUCH DAMAGE.
101 */
102
103 void blkfree(char **);
104 void closedataconn(FILE *);
105 char *conffilename(const char *);
106 char **copyblk(char **);
107 void count_users(void);
108 void cprintf(FILE *, const char *, ...)
109 __attribute__((__format__(__printf__, 2, 3)));
110 void cwd(const char *);
111 FILE *dataconn(const char *, off_t, const char *);
112 void delete(const char *);
113 int display_file(const char *, int);
114 char **do_conversion(const char *);
115 void dologout(int);
116 void fatal(const char *);
117 void feat(void);
118 void format_path(char *, const char *);
119 int ftpd_pclose(FILE *);
120 FILE *ftpd_popen(char *[], const char *, int);
121 char *getline(char *, int, FILE *);
122 void init_curclass(void);
123 void logcmd(const char *, off_t, const char *, const char *,
124 const struct timeval *, const char *);
125 void logwtmp(const char *, const char *, const char *);
126 struct tab *lookup(struct tab *, const char *);
127 void makedir(const char *);
128 void mlsd(const char *);
129 void mlst(const char *);
130 void opts(const char *);
131 void parse_conf(const char *);
132 void pass(const char *);
133 void passive(void);
134 int lpsvproto2af(int);
135 int af2lpsvproto(int);
136 int epsvproto2af(int);
137 int af2epsvproto(int);
138 void long_passive(char *, int);
139 int extended_port(const char *);
140 void epsv_protounsupp(const char *);
141 void perror_reply(int, const char *);
142 void pwd(void);
143 void removedir(const char *);
144 void renamecmd(const char *, const char *);
145 char *renamefrom(const char *);
146 void reply(int, const char *, ...)
147 __attribute__((__format__(__printf__, 2, 3)));
148 void retrieve(char *[], const char *);
149 void send_file_list(const char *);
150 void show_chdir_messages(int);
151 void sizecmd(const char *);
152 void statcmd(void);
153 void statfilecmd(const char *);
154 void store(const char *, const char *, int);
155 int strsuftoi(const char *);
156 void user(const char *);
157 char *xstrdup(const char *);
158 void yyerror(char *);
159
160 typedef long long qdfmt_t;
161 typedef unsigned long long qufmt_t;
162
163 typedef enum {
164 CLASS_GUEST,
165 CLASS_CHROOT,
166 CLASS_REAL
167 } class_ft;
168
169 struct tab {
170 char *name;
171 short token;
172 short state;
173 short flags; /* 1 if command implemented, 2 if has options */
174 char *help;
175 char *options;
176 };
177
178 struct ftpconv {
179 struct ftpconv *next;
180 char *suffix; /* Suffix of requested name */
181 char *types; /* Valid file types */
182 char *disable; /* File to disable conversions */
183 char *command; /* Command to do the conversion */
184 };
185
186 struct ftpclass {
187 int checkportcmd; /* Check PORT commands are valid */
188 char *chroot; /* Directory to chroot(2) to at login */
189 char *classname; /* Current class */
190 struct ftpconv *conversions; /* List of conversions */
191 char *display; /* Files to display upon chdir */
192 char *homedir; /* Directory to chdir(2) to at login */
193 int limit; /* Max connections (-1 = unlimited) */
194 char *limitfile; /* File to display if limit reached */
195 int maxrateget; /* Maximum get transfer rate throttle */
196 int maxrateput; /* Maximum put transfer rate throttle */
197 unsigned int maxtimeout; /* Maximum permitted timeout */
198 int modify; /* Allow CHMOD, DELE, MKD, RMD, RNFR,
199 UMASK */
200 char *motd; /* MotD file to display after login */
201 char *notify; /* Files to notify about upon chdir */
202 int passive; /* Allow PASV mode */
203 int portmin; /* Minumum port for passive mode */
204 int portmax; /* Maximum port for passive mode */
205 int rateget; /* Get (RETR) transfer rate throttle */
206 int rateput; /* Put (STOR) transfer rate throttle */
207 unsigned int timeout; /* Default timeout */
208 class_ft type; /* Class type */
209 mode_t umask; /* Umask to use */
210 int upload; /* As per modify, but also allow
211 APPE, STOR, STOU */
212 };
213
214 #include <netinet/in.h>
215
216 union sockunion {
217 struct sockinet {
218 u_char si_len;
219 u_char si_family;
220 u_short si_port;
221 } su_si;
222 struct sockaddr_in su_sin;
223 #ifdef INET6
224 struct sockaddr_in6 su_sin6;
225 #endif
226 };
227 #define su_len su_si.si_len
228 #define su_family su_si.si_family
229 #define su_port su_si.si_port
230
231 extern int yyparse(void);
232
233 #ifndef GLOBAL
234 #define GLOBAL extern
235 #endif
236
237
238 GLOBAL union sockunion ctrl_addr;
239 GLOBAL union sockunion data_dest;
240 GLOBAL union sockunion data_source;
241 GLOBAL union sockunion his_addr;
242 GLOBAL union sockunion pasv_addr;
243 GLOBAL int connections;
244 GLOBAL struct ftpclass curclass;
245 GLOBAL int debug;
246 GLOBAL jmp_buf errcatch;
247 GLOBAL int form;
248 GLOBAL int gidcount; /* number of entries in gidlist[] */
249 GLOBAL gid_t gidlist[NGROUPS_MAX];
250 GLOBAL int hasyyerrored;
251 GLOBAL char hostname[MAXHOSTNAMELEN+1];
252 GLOBAL char homedir[MAXPATHLEN];
253 #ifdef KERBEROS5
254 GLOBAL krb5_context kcontext;
255 #endif
256 GLOBAL int logged_in;
257 GLOBAL int logging;
258 GLOBAL int pdata; /* for passive mode */
259 #ifdef HASSETPROCTITLE
260 GLOBAL char proctitle[BUFSIZ]; /* initial part of title */
261 #endif
262 GLOBAL struct passwd *pw;
263 GLOBAL int quietmessages;
264 GLOBAL char remotehost[MAXHOSTNAMELEN+1];
265 GLOBAL off_t restart_point;
266 GLOBAL char tmpline[7];
267 GLOBAL sig_atomic_t transflag;
268 GLOBAL int type;
269 GLOBAL int usedefault; /* for data transfers */
270 GLOBAL const char *version;
271
272 /* total file data bytes */
273 GLOBAL off_t total_data_in, total_data_out, total_data;
274 /* total number of data files */
275 GLOBAL off_t total_files_in, total_files_out, total_files;
276 /* total bytes */
277 GLOBAL off_t total_bytes_in, total_bytes_out, total_bytes;
278 /* total number of xfers */
279 GLOBAL off_t total_xfers_in, total_xfers_out, total_xfers;
280
281 extern struct tab cmdtab[];
282
283 #define INTERNAL_LS "/bin/ls"
284
285
286 #define CMD_IMPLEMENTED(x) ((x)->flags != 0)
287 #define CMD_HAS_OPTIONS(x) ((x)->flags == 2)
288
289 #define CPUTC(c, f) do { \
290 putc(c, f); total_bytes++; total_bytes_out++; \
291 } while (0);
292
293 #define CURCLASSTYPE curclass.type == CLASS_GUEST ? "GUEST" : \
294 curclass.type == CLASS_CHROOT ? "CHROOT" : \
295 curclass.type == CLASS_REAL ? "REAL" : \
296 "<unknown>"
297
298 #define ISDOTDIR(x) (x[0] == '.' && x[1] == '\0')
299 #define ISDOTDOTDIR(x) (x[0] == '.' && x[1] == '.' && x[2] == '\0')
300
301 #define EMPTYSTR(p) ((p) == NULL || *(p) == '\0')
302 #define NEXTWORD(P, W) do { \
303 (W) = strsep(&(P), " \t"); \
304 } while ((W) != NULL && *(W) == '\0')
305 #define PLURAL(s) ((s) == 1 ? "" : "s")
306 #define REASSIGN(X,Y) do { if (X) free(X); (X)=(Y); } while (/*CONSTCOND*/0)
307