extern.h revision 1.34 1 /* $NetBSD: extern.h,v 1.34 2000/11/15 02:32:30 lukem 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 enum {
161 CLASS_GUEST,
162 CLASS_CHROOT,
163 CLASS_REAL
164 } class_ft;
165
166 struct tab {
167 char *name;
168 short token;
169 short state;
170 short flags; /* 1 if command implemented, 2 if has options */
171 char *help;
172 char *options;
173 };
174
175 struct ftpconv {
176 struct ftpconv *next;
177 char *suffix; /* Suffix of requested name */
178 char *types; /* Valid file types */
179 char *disable; /* File to disable conversions */
180 char *command; /* Command to do the conversion */
181 };
182
183 struct ftpclass {
184 int checkportcmd; /* Check PORT commands are valid */
185 char *chroot; /* Directory to chroot(2) to at login */
186 char *classname; /* Current class */
187 struct ftpconv *conversions; /* List of conversions */
188 char *display; /* Files to display upon chdir */
189 char *homedir; /* Directory to chdir(2) to at login */
190 int limit; /* Max connections (-1 = unlimited) */
191 char *limitfile; /* File to display if limit reached */
192 int maxrateget; /* Maximum get transfer rate throttle */
193 int maxrateput; /* Maximum put transfer rate throttle */
194 unsigned int maxtimeout; /* Maximum permitted timeout */
195 int modify; /* Allow CHMOD, DELE, MKD, RMD, RNFR,
196 UMASK */
197 char *motd; /* MotD file to display after login */
198 char *notify; /* Files to notify about upon chdir */
199 int passive; /* Allow PASV mode */
200 int portmin; /* Minumum port for passive mode */
201 int portmax; /* Maximum port for passive mode */
202 int rateget; /* Get (RETR) transfer rate throttle */
203 int rateput; /* Put (STOR) transfer rate throttle */
204 unsigned int timeout; /* Default timeout */
205 class_ft type; /* Class type */
206 mode_t umask; /* Umask to use */
207 int upload; /* As per modify, but also allow
208 APPE, STOR, STOU */
209 };
210
211 #include <netinet/in.h>
212
213 #ifdef BSD4_4
214 # define HAVE_SOCKADDR_SA_LEN 1
215 #endif
216
217 struct sockinet {
218 union sockunion {
219 struct sockaddr_in su_sin;
220 #ifdef INET6
221 struct sockaddr_in6 su_sin6;
222 #endif
223 } si_su;
224 #if !HAVE_SOCKADDR_SA_LEN
225 int si_len;
226 #endif
227 };
228
229 #if !HAVE_SOCKADDR_SA_LEN
230 # define su_len si_len
231 #else
232 # define su_len si_su.su_sin.sin_len
233 #endif
234 #define su_addr si_su.su_sin.sin_addr
235 #define su_family si_su.su_sin.sin_family
236 #define su_port si_su.su_sin.sin_port
237 #ifdef INET6
238 # define su_6addr si_su.su_sin6.sin6_addr
239 # define su_scope_id si_su.su_sin6.sin6_scope_id
240 #endif
241
242 extern int yyparse(void);
243
244 #ifndef GLOBAL
245 #define GLOBAL extern
246 #endif
247
248
249 GLOBAL struct sockinet ctrl_addr;
250 GLOBAL struct sockinet data_dest;
251 GLOBAL struct sockinet data_source;
252 GLOBAL struct sockinet his_addr;
253 GLOBAL struct sockinet pasv_addr;
254 GLOBAL int connections;
255 GLOBAL struct ftpclass curclass;
256 GLOBAL int debug;
257 GLOBAL jmp_buf errcatch;
258 GLOBAL int form;
259 GLOBAL int gidcount; /* number of entries in gidlist[] */
260 GLOBAL gid_t gidlist[NGROUPS_MAX];
261 GLOBAL int hasyyerrored;
262 GLOBAL char hostname[MAXHOSTNAMELEN+1];
263 GLOBAL char homedir[MAXPATHLEN];
264 #ifdef KERBEROS5
265 GLOBAL krb5_context kcontext;
266 #endif
267 GLOBAL int logged_in;
268 GLOBAL int logging;
269 GLOBAL int pdata; /* for passive mode */
270 #ifdef HASSETPROCTITLE
271 GLOBAL char proctitle[BUFSIZ]; /* initial part of title */
272 #endif
273 GLOBAL struct passwd *pw;
274 GLOBAL int quietmessages;
275 GLOBAL char remotehost[MAXHOSTNAMELEN+1];
276 GLOBAL off_t restart_point;
277 GLOBAL char tmpline[7];
278 GLOBAL sig_atomic_t transflag;
279 GLOBAL int type;
280 GLOBAL int usedefault; /* for data transfers */
281 GLOBAL const char *version;
282
283 /* total file data bytes */
284 GLOBAL off_t total_data_in, total_data_out, total_data;
285 /* total number of data files */
286 GLOBAL off_t total_files_in, total_files_out, total_files;
287 /* total bytes */
288 GLOBAL off_t total_bytes_in, total_bytes_out, total_bytes;
289 /* total number of xfers */
290 GLOBAL off_t total_xfers_in, total_xfers_out, total_xfers;
291
292 extern struct tab cmdtab[];
293
294 #define INTERNAL_LS "/bin/ls"
295
296
297 #define CMD_IMPLEMENTED(x) ((x)->flags != 0)
298 #define CMD_HAS_OPTIONS(x) ((x)->flags == 2)
299
300 #define CPUTC(c, f) do { \
301 putc(c, f); total_bytes++; total_bytes_out++; \
302 } while (0);
303
304 #define CURCLASSTYPE curclass.type == CLASS_GUEST ? "GUEST" : \
305 curclass.type == CLASS_CHROOT ? "CHROOT" : \
306 curclass.type == CLASS_REAL ? "REAL" : \
307 "<unknown>"
308
309 #define ISDOTDIR(x) (x[0] == '.' && x[1] == '\0')
310 #define ISDOTDOTDIR(x) (x[0] == '.' && x[1] == '.' && x[2] == '\0')
311
312 #define EMPTYSTR(p) ((p) == NULL || *(p) == '\0')
313 #define NEXTWORD(P, W) do { \
314 (W) = strsep(&(P), " \t"); \
315 } while ((W) != NULL && *(W) == '\0')
316 #define PLURAL(s) ((s) == 1 ? "" : "s")
317 #define REASSIGN(X,Y) do { if (X) free(X); (X)=(Y); } while (/*CONSTCOND*/0)
318
319 #ifndef IPPORT_ANONMAX
320 # define IPPORT_ANONMAX 65535
321 #endif
322
323 #ifdef NO_LONG_LONG
324 # define LLF "%ld"
325 # define LLFP(x) "%" x "ld"
326 # define LLT long
327 # define ULLF "%lu"
328 # define ULLFP(x) "%" x "lu"
329 # define ULLT unsigned long
330 # define STRTOLL(x,y,z) strtol(x,y,z)
331 #else
332 # define LLF "%lld"
333 # define LLFP(x) "%" x "lld"
334 # define LLT long long
335 # define ULLF "%llu"
336 # define ULLFP(x) "%" x "llu"
337 # define ULLT unsigned long long
338 # define STRTOLL(x,y,z) strtoll(x,y,z)
339 #endif
340