extern.h revision 1.32 1 /* $NetBSD: extern.h,v 1.32 2000/09/15 14:55:16 christos 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 void long_passive(char *, int);
135 void perror_reply(int, const char *);
136 void pwd(void);
137 void removedir(const char *);
138 void renamecmd(const char *, const char *);
139 char *renamefrom(const char *);
140 void reply(int, const char *, ...)
141 __attribute__((__format__(__printf__, 2, 3)));
142 void retrieve(char *[], const char *);
143 void send_file_list(const char *);
144 void show_chdir_messages(int);
145 void sizecmd(const char *);
146 void statcmd(void);
147 void statfilecmd(const char *);
148 void store(const char *, const char *, int);
149 int strsuftoi(const char *);
150 void user(const char *);
151 char *xstrdup(const char *);
152 void yyerror(char *);
153
154 typedef long long qdfmt_t;
155 typedef unsigned long long qufmt_t;
156
157 typedef enum {
158 CLASS_GUEST,
159 CLASS_CHROOT,
160 CLASS_REAL
161 } class_ft;
162
163 struct tab {
164 char *name;
165 short token;
166 short state;
167 short flags; /* 1 if command implemented, 2 if has options */
168 char *help;
169 char *options;
170 };
171
172 struct ftpconv {
173 struct ftpconv *next;
174 char *suffix; /* Suffix of requested name */
175 char *types; /* Valid file types */
176 char *disable; /* File to disable conversions */
177 char *command; /* Command to do the conversion */
178 };
179
180 struct ftpclass {
181 int checkportcmd; /* Check PORT commands are valid */
182 char *chroot; /* Directory to chroot(2) to at login */
183 char *classname; /* Current class */
184 struct ftpconv *conversions; /* List of conversions */
185 char *display; /* Files to display upon chdir */
186 char *homedir; /* Directory to chdir(2) to at login */
187 int limit; /* Max connections (-1 = unlimited) */
188 char *limitfile; /* File to display if limit reached */
189 int maxrateget; /* Maximum get transfer rate throttle */
190 int maxrateput; /* Maximum put transfer rate throttle */
191 unsigned int maxtimeout; /* Maximum permitted timeout */
192 int modify; /* Allow CHMOD, DELE, MKD, RMD, RNFR,
193 UMASK */
194 char *motd; /* MotD file to display after login */
195 char *notify; /* Files to notify about upon chdir */
196 int passive; /* Allow PASV mode */
197 int portmin; /* Minumum port for passive mode */
198 int portmax; /* Maximum port for passive mode */
199 int rateget; /* Get (RETR) transfer rate throttle */
200 int rateput; /* Put (STOR) transfer rate throttle */
201 unsigned int timeout; /* Default timeout */
202 class_ft type; /* Class type */
203 mode_t umask; /* Umask to use */
204 int upload; /* As per modify, but also allow
205 APPE, STOR, STOU */
206 };
207
208 #include <netinet/in.h>
209
210 union sockunion {
211 struct sockinet {
212 u_char si_len;
213 u_char si_family;
214 u_short si_port;
215 } su_si;
216 struct sockaddr_in su_sin;
217 #ifdef INET6
218 struct sockaddr_in6 su_sin6;
219 #endif
220 };
221 #define su_len su_si.si_len
222 #define su_family su_si.si_family
223 #define su_port su_si.si_port
224
225 extern int yyparse(void);
226
227 #ifndef GLOBAL
228 #define GLOBAL extern
229 #endif
230
231
232 GLOBAL union sockunion ctrl_addr;
233 GLOBAL union sockunion data_dest;
234 GLOBAL union sockunion data_source;
235 GLOBAL union sockunion his_addr;
236 GLOBAL union sockunion pasv_addr;
237 GLOBAL int connections;
238 GLOBAL struct ftpclass curclass;
239 GLOBAL int debug;
240 GLOBAL jmp_buf errcatch;
241 GLOBAL int form;
242 GLOBAL int gidcount; /* number of entries in gidlist[] */
243 GLOBAL gid_t gidlist[NGROUPS_MAX];
244 GLOBAL int hasyyerrored;
245 GLOBAL char hostname[MAXHOSTNAMELEN+1];
246 GLOBAL char homedir[MAXPATHLEN];
247 #ifdef KERBEROS5
248 GLOBAL krb5_context kcontext;
249 #endif
250 GLOBAL int logged_in;
251 GLOBAL int logging;
252 GLOBAL int pdata; /* for passive mode */
253 #ifdef HASSETPROCTITLE
254 GLOBAL char proctitle[BUFSIZ]; /* initial part of title */
255 #endif
256 GLOBAL struct passwd *pw;
257 GLOBAL int quietmessages;
258 GLOBAL char remotehost[MAXHOSTNAMELEN+1];
259 GLOBAL off_t restart_point;
260 GLOBAL char tmpline[7];
261 GLOBAL sig_atomic_t transflag;
262 GLOBAL int type;
263 GLOBAL int usedefault; /* for data transfers */
264 GLOBAL const char *version;
265
266 /* total file data bytes */
267 GLOBAL off_t total_data_in, total_data_out, total_data;
268 /* total number of data files */
269 GLOBAL off_t total_files_in, total_files_out, total_files;
270 /* total bytes */
271 GLOBAL off_t total_bytes_in, total_bytes_out, total_bytes;
272 /* total number of xfers */
273 GLOBAL off_t total_xfers_in, total_xfers_out, total_xfers;
274
275 extern struct tab cmdtab[];
276
277 #define INTERNAL_LS "/bin/ls"
278
279
280 #define CMD_IMPLEMENTED(x) ((x)->flags != 0)
281 #define CMD_HAS_OPTIONS(x) ((x)->flags == 2)
282
283 #define CPUTC(c, f) do { \
284 putc(c, f); total_bytes++; total_bytes_out++; \
285 } while (0);
286
287 #define CURCLASSTYPE curclass.type == CLASS_GUEST ? "GUEST" : \
288 curclass.type == CLASS_CHROOT ? "CHROOT" : \
289 curclass.type == CLASS_REAL ? "REAL" : \
290 "<unknown>"
291
292 #define ISDOTDIR(x) (x[0] == '.' && x[1] == '\0')
293 #define ISDOTDOTDIR(x) (x[0] == '.' && x[1] == '.' && x[2] == '\0')
294
295 #define EMPTYSTR(p) ((p) == NULL || *(p) == '\0')
296 #define NEXTWORD(P, W) do { \
297 (W) = strsep(&(P), " \t"); \
298 } while ((W) != NULL && *(W) == '\0')
299 #define PLURAL(s) ((s) == 1 ? "" : "s")
300 #define REASSIGN(X,Y) do { if (X) free(X); (X)=(Y); } while (/*CONSTCOND*/0)
301