lukemftpd.h revision 92282 
1/* $Id: lukemftpd.h,v 1.18 2002/03/14 06:02:24 lukem Exp $ */
2
3#define	FTPD_VERSION	"lukemftpd 1.2 beta 1"
4
5#include "config.h"
6
7#include <sys/types.h>
8#include <sys/param.h>
9#include <sys/ioctl.h>
10#include <sys/socket.h>
11#include <sys/stat.h>
12#include <sys/wait.h>
13#if HAVE_SYS_SYSMACROS_H
14# include <sys/sysmacros.h>
15#endif
16
17#include <netinet/in.h>
18#include <netinet/in_systm.h>
19#include <netinet/ip.h>
20
21#if HAVE_FTP_NAMES
22# include <arpa/ftp.h>
23#else
24# include "arpaftp.h"
25#endif
26#include <arpa/inet.h>
27
28#include <ctype.h>
29#include <errno.h>
30#include <fcntl.h>
31#include <fnmatch.h>
32#include <grp.h>
33#include <limits.h>
34#include <locale.h>
35#include <netdb.h>
36#include <pwd.h>
37#include <setjmp.h>
38#include <signal.h>
39#include <stdarg.h>
40#include <stddef.h>
41#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44#include <syslog.h>
45#include <termios.h>
46#include <unistd.h>
47#include <utmp.h>
48
49#if HAVE_DIRENT_H
50# include <dirent.h>
51#else
52# define dirent direct
53# if HAVE_SYS_NDIR_H
54#  include <sys/ndir.h>
55# endif
56# if HAVE_SYS_DIR_H
57#  include <sys/dir.h>
58# endif
59# if HAVE_NDIR_H
60#  include <ndir.h>
61# endif
62#endif
63
64#if TIME_WITH_SYS_TIME
65# include <sys/time.h>
66# include <time.h>
67#else
68# if HAVE_SYS_TIME_H
69#  include <sys/time.h>
70# else
71#  include <time.h>
72# endif
73#endif
74
75#if HAVE_ERR_H
76# include <err.h>
77#endif
78
79#if HAVE_WORKING_GLOB
80# include <glob.h>
81#else
82# include "ftpglob.h"
83#endif
84
85#if HAVE_PATHS_H
86# include <paths.h>
87#endif
88#ifndef	_PATH_BSHELL
89#define	_PATH_BSHELL	"/bin/sh"
90#endif
91#ifndef	_PATH_CSHELL
92#define	_PATH_CSHELL	"/bin/csh"
93#endif
94#ifndef	_PATH_SHELLS
95#define	_PATH_SHELLS	"/etc/shells"
96#endif
97#ifndef	_PATH_DEVNULL
98#define	_PATH_DEVNULL	"/dev/null"
99#endif
100#ifndef	_PATH_NOLOGIN
101#define	_PATH_NOLOGIN	"/etc/nologin"
102#endif
103
104#ifndef FTPD_LOGTYPE
105# ifdef LOG_FTP
106#  define FTPD_LOGTYPE	LOG_FTP
107# else
108#  define FTPD_LOGTYPE	LOG_DAEMON
109# endif
110#endif
111
112#ifndef LOG_AUTHPRIV
113# ifdef LOG_AUTH
114#  define LOG_AUTHPRIV	LOG_AUTH
115# else
116#  define LOG_AUTHPRIV	LOG_DAEMON
117# endif
118#endif
119
120typedef struct _stringlist {
121	char	**sl_str;
122	size_t	  sl_max;
123	size_t	  sl_cur;
124} StringList;
125
126StringList *sl_init(void);
127int	 sl_add(StringList *, char *);
128void	 sl_free(StringList *, int);
129char	*sl_find(StringList *, char *);
130
131#if HAVE_FTS_H
132# include <fts.h>
133#else
134# include "ftpfts.h"
135#endif
136
137#if HAVE_UTIL_H
138# include <util.h>
139#endif
140
141#if HAVE_LIBUTIL_H
142# include <libutil.h>
143#endif
144
145#if ! HAVE_IN_PORT_T
146typedef unsigned short in_port_t;
147#endif
148
149#if ! HAVE_SOCKLEN_T
150typedef unsigned int socklen_t;
151#endif
152
153#if HAVE_AF_INET6 && HAVE_SOCKADDR_IN6
154# define INET6
155#endif
156
157
158#if ! HAVE_RFC2553_NETDB
159
160				/* RFC 2553 */
161#undef	EAI_ADDRFAMILY
162#define	EAI_ADDRFAMILY	 1	/* address family for hostname not supported */
163#undef	EAI_AGAIN
164#define	EAI_AGAIN	 2	/* temporary failure in name resolution */
165#undef	EAI_BADFLAGS
166#define	EAI_BADFLAGS	 3	/* invalid value for ai_flags */
167#undef	EAI_FAIL
168#define	EAI_FAIL	 4	/* non-recoverable failure in name resolution */
169#undef	EAI_FAMILY
170#define	EAI_FAMILY	 5	/* ai_family not supported */
171#undef	EAI_MEMORY
172#define	EAI_MEMORY	 6	/* memory allocation failure */
173#undef	EAI_NODATA
174#define	EAI_NODATA	 7	/* no address associated with hostname */
175#undef	EAI_NONAME
176#define	EAI_NONAME	 8	/* hostname nor servname provided, or not known */
177#undef	EAI_SERVICE
178#define	EAI_SERVICE	 9	/* servname not supported for ai_socktype */
179#undef	EAI_SOCKTYPE
180#define	EAI_SOCKTYPE	10	/* ai_socktype not supported */
181#undef	EAI_SYSTEM
182#define	EAI_SYSTEM	11	/* system error returned in errno */
183
184				/* KAME extensions? */
185#undef	EAI_BADHINTS
186#define	EAI_BADHINTS	12
187#undef	EAI_PROTOCOL
188#define	EAI_PROTOCOL	13
189#undef	EAI_MAX
190#define	EAI_MAX		14
191
192				/* RFC 2553 */
193#undef	NI_MAXHOST
194#define	NI_MAXHOST	1025
195#undef	NI_MAXSERV
196#define	NI_MAXSERV	32
197
198#undef	NI_NOFQDN
199#define	NI_NOFQDN	0x00000001
200#undef	NI_NUMERICHOST
201#define	NI_NUMERICHOST	0x00000002
202#undef	NI_NAMEREQD
203#define	NI_NAMEREQD	0x00000004
204#undef	NI_NUMERICSERV
205#define	NI_NUMERICSERV	0x00000008
206#undef	NI_DGRAM
207#define	NI_DGRAM	0x00000010
208
209				/* RFC 2553 */
210#undef	AI_PASSIVE
211#define	AI_PASSIVE	0x00000001 /* get address to use bind() */
212#undef	AI_CANONNAME
213#define	AI_CANONNAME	0x00000002 /* fill ai_canonname */
214
215				/* KAME extensions ? */
216#undef	AI_NUMERICHOST
217#define	AI_NUMERICHOST	0x00000004 /* prevent name resolution */
218#undef	AI_MASK
219#define	AI_MASK		(AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
220
221				/* RFC 2553 */
222#undef	AI_ALL
223#define	AI_ALL		0x00000100 /* IPv6 and IPv4-mapped (with AI_V4MAPPED) */
224#undef	AI_V4MAPPED_CFG
225#define	AI_V4MAPPED_CFG	0x00000200 /* accept IPv4-mapped if kernel supports */
226#undef	AI_ADDRCONFIG
227#define	AI_ADDRCONFIG	0x00000400 /* only if any address is assigned */
228#undef	AI_V4MAPPED
229#define	AI_V4MAPPED	0x00000800 /* accept IPv4-mapped IPv6 address */
230
231#endif /* ! HAVE_RFC2553_NETDB */
232
233
234#if ! HAVE_RFC2553_NETDB && ! HAVE_ADDRINFO
235
236struct addrinfo {
237	int	ai_flags;	/* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
238	int	ai_family;	/* PF_xxx */
239	int	ai_socktype;	/* SOCK_xxx */
240	int	ai_protocol;	/* 0 or IPPROTO_xxx for IPv4 and IPv6 */
241	size_t	ai_addrlen;	/* length of ai_addr */
242	char	*ai_canonname;	/* canonical name for hostname */
243	struct sockaddr *ai_addr;	/* binary address */
244	struct addrinfo *ai_next;	/* next structure in linked list */
245};
246
247int	getaddrinfo(const char *, const char *,
248	    const struct addrinfo *, struct addrinfo **);
249int	getnameinfo(const struct sockaddr *, socklen_t, char *,
250	    size_t, char *, size_t, int);
251void	freeaddrinfo(struct addrinfo *);
252char	*gai_strerror(int);
253
254#endif /* ! HAVE_RFC2553_NETDB && ! HAVE_ADDRINFO */
255
256
257#if ! HAVE_D_NAMLEN
258# define DIRENT_MISSING_D_NAMLEN
259#endif
260
261#if ! HAVE_CRYPT_D
262char	*crypt(const char *, const char *);
263#endif
264
265#if ! HAVE_FCLOSE_D
266int	fclose(FILE *);
267#endif
268
269#if ! HAVE_OPTARG_D
270extern char	*optarg;
271#endif
272
273#if ! HAVE_OPTIND_D
274extern int	optind;
275#endif
276
277#if ! HAVE_PCLOSE_D
278int	pclose(FILE *);
279#endif
280
281#if ! HAVE_ERR
282void	err(int, const char *, ...);
283void	errx(int, const char *, ...);
284void	warn(const char *, ...);
285void	warnx(const char *, ...);
286#endif
287
288#if ! HAVE_FGETLN
289char	*fgetln(FILE *, size_t *);
290#endif
291
292#if ! HAVE_FPARSELN
293# define FPARSELN_UNESCESC	0x01
294# define FPARSELN_UNESCCONT	0x02
295# define FPARSELN_UNESCCOMM	0x04
296# define FPARSELN_UNESCREST	0x08
297# define FPARSELN_UNESCALL	0x0f
298char	*fparseln(FILE *, size_t *, size_t *, const char[3], int);
299#endif
300
301#if ! HAVE_GETUSERSHELL || ! HAVE_GETUSERSHELL_D
302char	*getusershell(void);
303void	setusershell(void);
304void	endusershell(void);
305#endif
306
307#if ! HAVE_INET_NTOP
308const char *inet_ntop(int, const void *, char *, size_t);
309#endif
310
311#if ! HAVE_INET_PTON
312int	inet_pton(int, const char *, void *);
313#endif
314
315#if ! HAVE_MKSTEMP
316int	mkstemp(const char *);
317#endif
318
319#if ! HAVE_SNPRINTF
320int	snprintf(char *, size_t, const char *, ...);
321#endif
322
323#if ! HAVE_STRDUP
324char	*strdup(const char *);
325#endif
326
327#if ! HAVE_STRERROR
328char	*strerror(int);
329#endif
330
331#if HAVE_QUAD_SUPPORT
332# if ! HAVE_STRTOLL && HAVE_LONG_LONG
333long long strtoll(const char *, char **, int);
334#  if ! defined(QUAD_MIN)
335#   define QUAD_MIN	(-0x7fffffffffffffffL-1)
336#  endif
337#  if ! defined(QUAD_MAX)
338#   define QUAD_MAX	(0x7fffffffffffffffL)
339#  endif
340# endif
341#else	/* ! HAVE_QUAD_SUPPORT */
342# define NO_LONG_LONG	1
343#endif	/* ! HAVE_QUAD_SUPPORT */
344
345#if ! HAVE_STRLCAT
346size_t	strlcat(char *, const char *, size_t);
347#endif
348
349#if ! HAVE_STRLCPY
350size_t	strlcpy(char *, const char *, size_t);
351#endif
352
353#if ! HAVE_STRMODE
354void	strmode(mode_t, char *);
355#endif
356
357#if ! HAVE_STRSEP
358char	*strsep(char **, const char *);
359#endif
360
361#if ! HAVE_USER_FROM_UID
362const char *user_from_uid(uid_t, int);
363const char *group_from_gid(gid_t, int);
364#endif
365
366#if ! HAVE_VSYSLOG
367void	vsyslog(int level, const char *, va_list);
368#endif
369
370
371#if ! defined(MIN)
372# define MIN(a, b)	((a) < (b) ? (a) : (b))
373#endif
374#if ! defined(MAX)
375# define MAX(a, b)	((a) < (b) ? (b) : (a))
376#endif
377
378#if ! defined(timersub)
379# define timersub(tvp, uvp, vvp)					\
380	do {								\
381		(vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec;		\
382		(vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec;	\
383		if ((vvp)->tv_usec < 0) {				\
384			(vvp)->tv_sec--;				\
385			(vvp)->tv_usec += 1000000;			\
386		}							\
387	} while (0)
388#endif
389
390#if ! defined(S_ISLNK)
391# define S_ISLNK(m)	((m & S_IFMT) == S_IFLNK)
392#endif
393
394#define	DAYSPERNYEAR	365
395#define SECSPERDAY	86400
396#define TM_YEAR_BASE	1900
397