2 * For license terms, see the file COPYING in this directory.
5 /* We need this for HAVE_STDARG_H, etc */
8 /* constants designating the various supported protocols */
20 #define KPOP_PORT "kpop"
22 #define KPOP_PORT 1109
25 /* preauthentication types */
26 #define A_PASSWORD 0 /* password or inline authentication */
27 #define A_KERBEROS_V4 1 /* preauthenticate w/ Kerberos V4 */
28 #define A_KERBEROS_V5 2 /* preauthenticate w/ Kerberos V5 */
31 * Definitions for buffer sizes. We get little help on setting maxima
32 * from IMAP RFCs up to 2060, so these are mostly from POP3.
34 #define HOSTLEN 635 /* max hostname length (RFC1123) */
35 #define POPBUFSIZE 512 /* max length of response (RFC1939) */
36 #define IDLEN 128 /* max length of UID (RFC1939) */
38 /* per RFC1939 this should be 40, but Microsoft Exchange ignores that limit */
39 #define USERNAMELEN 128 /* max POP3 arg length */
41 /* clear a netBSD kernel parameter out of the way */
45 * The RFC822 limit on message line size is just 998. But
46 * make this *way* oversized; idiot DOS-world mailers that
47 * don't line-wrap properly often ship entire paragraphs as
50 #define MSGBUFSIZE 8192
52 #define PASSWORDLEN 64 /* max password length */
53 #define DIGESTLEN 33 /* length of MD5 digest */
55 /* exit code values */
56 #define PS_SUCCESS 0 /* successful receipt of messages */
57 #define PS_NOMAIL 1 /* no mail available */
58 #define PS_SOCKET 2 /* socket I/O woes */
59 #define PS_AUTHFAIL 3 /* user authorization failed */
60 #define PS_PROTOCOL 4 /* protocol violation */
61 #define PS_SYNTAX 5 /* command-line syntax error */
62 #define PS_IOERR 6 /* bad permissions on rc file */
63 #define PS_ERROR 7 /* protocol error */
64 #define PS_EXCLUDE 8 /* client-side exclusion error */
65 #define PS_LOCKBUSY 9 /* server responded lock busy */
66 #define PS_SMTP 10 /* SMTP error */
67 #define PS_DNS 11 /* fatal DNS error */
68 #define PS_BSMTP 12 /* output batch could not be opened */
69 /* leave space for more codes */
70 #define PS_UNDEFINED 23 /* something I hadn't thought of */
71 #define PS_TRANSIENT 24 /* transient failure (internal use) */
72 #define PS_REFUSED 25 /* mail refused (internal use) */
73 #define PS_RETAINED 26 /* message retained (internal use) */
74 #define PS_TRUNCATED 27 /* headers incomplete (internal use) */
76 /* output noise level */
77 #define O_SILENT 0 /* mute, max squelch, etc. */
78 #define O_NORMAL 1 /* user-friendly */
79 #define O_VERBOSE 2 /* chatty */
80 #define O_DEBUG 3 /* prolix */
81 #define O_MONITOR O_VERBOSE
83 #define SIZETICKER 1024 /* print 1 dot per this many bytes */
86 * We #ifdef this and use flag rather than bool
87 * to avoid a type clash with curses.h
95 /* we need to use zero as a flag-uninitialized value */
106 const char *postmaster;
117 flag mark; /* UID-index information */
118 #define UID_UNSEEN 0 /* hasn't been seen */
119 #define UID_SEEN 1 /* seen, but not deleted */
120 #define UID_DELETED 2 /* this message has been deleted */
121 #define UID_EXPUNGED 3 /* this message has been expunged */
131 struct method /* describe methods for protocol state machine */
133 const char *name; /* protocol name */
137 int port; /* service port */
139 flag tagged; /* if true, generate & expect command tags */
140 flag delimited; /* if true, accept "." message delimiter */
141 int (*parse_response)(int, char *);
142 /* response_parsing function */
143 int (*password_canonify)(char *, char *);
144 /* canonicalize password */
145 int (*getauth)(int, struct query *, char *);
146 /* authorization fetcher */
147 int (*getrange)(int, struct query *, const char *, int *, int *, int *);
148 /* get message range to fetch */
149 int (*getsizes)(int, int, int *);
150 /* get sizes of messages */
151 int (*is_old)(int, struct query *, int);
152 /* check for old message */
153 int (*fetch_headers)(int, struct query *, int, int *);
154 /* fetch FROM headera given message */
155 int (*fetch_body)(int, struct query *, int, int *);
156 /* fetch a given message */
157 int (*trail)(int, struct query *, int);
158 /* eat trailer of a message */
159 int (*delete)(int, struct query *, int);
161 int (*logout_cmd)(int, struct query *);
163 flag retry; /* can getrange poll for new messages? */
166 struct hostdata /* shared among all user connections to given server */
169 char *pollname; /* poll label of host */
170 char *via; /* "true" server name if non-NULL */
171 struct idlist *akalist; /* server name first, then akas */
172 struct idlist *localdomains; /* list of pass-through domains */
173 int protocol; /* protocol type */
175 char *service; /* IPv6 service name */
176 void *netsec; /* IPv6 security request */
178 int port; /* TCP/IP service port number */
180 int interval; /* # cycles to skip between polls */
181 int preauthenticate; /* preauthentication mode to try */
182 int timeout; /* inactivity timout in seconds */
183 char *envelope; /* envelope address list header */
184 int envskip; /* skip to numbered envelope header */
185 char *qvirtual; /* prefix removed from local user id */
186 flag skip; /* suppress poll in implicit mode? */
187 flag dns; /* do DNS lookup on multidrop? */
188 flag uidl; /* use RFC1725 UIDLs? */
190 flag sdps; /* use Demon Internet SDPS *ENV */
191 #endif /* SDPS_ENABLE */
192 flag checkalias; /* resolve aliases by comparing IPs? */
199 struct interface_pair_s *interface_pair;
202 /* computed for internal use */
203 const struct method *base_protocol; /* relevant protocol method table */
204 int poll_count; /* count of polls so far */
205 char *queryname; /* name to attempt DNS lookup on */
206 char *truename; /* "true name" of server host */
207 struct hostdata *lead_server; /* ptr to lead query for this server */
213 /* mailserver connection controls */
214 struct hostdata server;
217 struct idlist *localnames; /* including calling user's name */
218 int wildcard; /* should unmatched names be passed through */
219 char *remotename; /* remote login name to use */
220 char *password; /* remote password to use */
221 struct idlist *mailboxes; /* list of mailboxes to check */
222 struct idlist *smtphunt; /* list of SMTP hosts to try forwarding to */
223 char *smtphost; /* actual SMTP host to point to */
224 char *smtpaddress; /* address we want to force in the delivery messages */
225 struct idlist *antispam; /* list of listener's antispam response */
226 char *mda; /* local MDA to pass mail to */
227 char *bsmtp; /* BSMTP output file */
228 char *preconnect; /* pre-connection command to execute */
229 char *postconnect; /* post-connection command to execute */
231 /* per-user control flags */
232 flag keep; /* if TRUE, leave messages undeleted */
233 flag fetchall; /* if TRUE, fetch all (not just unseen) */
234 flag flush; /* if TRUE, delete messages already seen */
235 flag rewrite; /* if TRUE, canonicalize recipient addresses */
236 flag stripcr; /* if TRUE, strip CRs in text */
237 flag forcecr; /* if TRUE, force CRs before LFs in text */
238 flag pass8bits; /* if TRUE, ignore Content-Transfer-Encoding */
239 flag dropstatus; /* if TRUE, drop Status lines in mail */
240 flag mimedecode; /* if TRUE, decode MIME-coded headers/coded printable*/
241 int limit; /* limit size of retrieved messages */
242 int warnings; /* size warning interval */
243 int fetchlimit; /* max # msgs to get in single poll */
244 int batchlimit; /* max # msgs to pass in single SMTP session */
245 int expunge; /* max # msgs to pass between expunges */
246 char *properties; /* passthrough properties for extensions */
248 struct idlist *oldsaved, *newsaved;
250 /* internal use -- per-poll state */
251 flag active; /* should we actually poll this server? */
252 const char *destaddr; /* destination host for this query */
253 int errcount; /* count transient errors in last pass */
254 int authfailcount; /* count authentication failures this run */
255 int smtp_socket; /* socket descriptor for SMTP connection */
256 unsigned int uid; /* UID of user to deliver to */
257 struct idlist *skipped; /* messages skipped on the mail server */
259 /* internal use -- per-message state */
260 int mimemsg; /* bitmask indicating MIME body-type */
261 char digest [DIGESTLEN]; /* md5 digest buffer */
263 /* internal use -- housekeeping */
264 struct query *next; /* next query control block in chain */
268 * Numeric option handling. Numeric option value of zero actually means
269 * it's unspecified. Value less than zero is zero.
271 #define NUM_VALUE(n) (((n) == 0) ? -1 : (n))
272 #define NUM_NONZERO(n) ((n) > 0)
273 #define NUM_ZERO(n) ((n) < 0)
274 #define NUM_SPECIFIED(n) ((n) != 0)
276 #define MULTIDROP(ctl) (ctl->wildcard || \
277 ((ctl)->localnames && (ctl)->localnames->next))
280 * Note: tags are generated with an a%04d format from a 1-origin
281 * integer sequence number. Length 4 permits transaction numbers
282 * up to 9999, so we force rollover with % 10000. There's no special
283 * reason for this format other than to look like the exmples in the
286 #define TAGLEN 6 /* 'a' + 4 digits + NUL */
287 extern char tag[TAGLEN];
290 /* list of hosts assembled from run control file and command line */
291 extern struct query cmd_opts, *querylist;
293 /* what's returned by envquery */
294 extern void envquery(int, char **);
296 /* controls the detail level of status/progress messages written to stderr */
297 extern int outlevel; /* see the O_.* constants above */
298 extern int yydebug; /* enable parse debugging */
300 /* these get computed */
301 extern int batchcount; /* count of messages sent in current batch */
302 extern flag peek_capable; /* can we read msgs without setting seen? */
304 /* miscellaneous global controls */
305 extern struct runctl run; /* global controls for this run */
306 extern flag nodetach; /* if TRUE, don't detach daemon process */
307 extern flag quitmode; /* if --quit was set */
308 extern flag check_only; /* if --check was set */
309 extern char *rcfile; /* path name of rc file */
310 extern int linelimit; /* limit # lines retrieved per site */
311 extern flag versioninfo; /* emit only version info */
312 extern char *user; /* name of invoking user */
313 extern char *home; /* home directory of invoking user */
314 extern int pass; /* number of re-polling pass */
315 extern flag configdump; /* dump control blocks as Python dictionary */
316 extern const char *fetchmailhost;
317 /* either "localhost" or an FQDN */
319 /* prototypes for globally callable functions */
321 /* error.c: Error reporting */
322 #if defined(HAVE_STDARG_H)
323 void error_init(int foreground);
324 void error (int status, int errnum, const char *format, ...);
325 void error_build (const char *format, ...);
326 void error_complete (int status, int errnum, const char *format, ...);
327 void error_at_line (int, int, const char *, unsigned int, const char *, ...);
331 void error_complete ();
332 void error_at_line ();
335 /* driver.c: transaction support */
336 void set_timeout(int);
337 #if defined(HAVE_STDARG_H)
338 void gen_send (int sock, const char *, ... );
339 int gen_recv(int sock, char *buf, int size);
340 int gen_transact (int sock, const char *, ... );
347 /* use these to track what was happening when the nonresponse timer fired */
348 #define GENERAL_WAIT 0 /* unknown wait type */
349 #define OPEN_WAIT 1 /* waiting from mailserver open */
350 #define SERVER_WAIT 2 /* waiting for mailserver response */
351 #define LISTENER_WAIT 3 /* waiting for listener initialization */
352 #define FORWARDING_WAIT 4 /* waiting for listener response */
355 /* mark values for name lists */
356 #define XMIT_ACCEPT 1
357 #define XMIT_REJECT 2
358 #define XMIT_ANTISPAM 3
360 /* sink.c: forwarding */
361 int stuffline(struct query *, char *);
362 int open_sink(struct query*, const char*, struct idlist*, long reallen, int*, int*);
363 void release_sink(struct query *);
364 int close_sink(struct query *, flag);
366 /* rfc822.c: RFC822 header parsing */
367 char *reply_hack(char *, const char *);
368 char *nxtaddr(const char *);
370 /* uid.c: UID support */
371 void initialize_saved_lists(struct query *, const char *);
372 struct idlist *save_str(struct idlist **, const char *, flag);
373 void free_str_list(struct idlist **);
374 void save_str_pair(struct idlist **, const char *, const char *);
375 void free_str_pair_list(struct idlist **);
376 int delete_str(struct idlist **, int);
377 int str_in_list(struct idlist **, const char *, const flag);
378 int str_nr_in_list(struct idlist **, const char *);
379 int str_nr_last_in_list(struct idlist **, const char *);
380 void str_set_mark( struct idlist **, const char *, const flag);
381 int count_list( struct idlist **idl );
382 char *str_from_nr_list( struct idlist **idl, int number );
383 char *str_find(struct idlist **, int);
384 char *idpair_find(struct idlist **, const char *);
385 void append_str_list(struct idlist **, struct idlist **);
386 void expunge_uids(struct query *);
387 void update_str_lists(struct query *);
388 void write_saved_lists(struct query *, const char *);
391 int prc_parse_file(const char *, const flag);
392 int prc_filecheck(const char *, const flag);
395 void to64frombits(unsigned char *, const unsigned char *, int);
396 int from64tobits(char *, const char *);
399 /* Bit-mask returned by MimeBodyType */
400 #define MSG_IS_7BIT 0x01
401 #define MSG_IS_8BIT 0x02
402 #define MSG_NEEDS_DECODE 0x80
403 extern void UnMimeHeader(unsigned char *buf);
404 extern int MimeBodyType(unsigned char *hdrs, int WantDecode);
405 extern int UnMimeBodyline(unsigned char **buf, int collapsedoubledot);
408 void interface_parse(char *, struct hostdata *);
409 void interface_note_activity(struct hostdata *);
410 int interface_approve(struct hostdata *);
413 #if defined(HAVE_VOIDPOINTER)
414 #define XMALLOCTYPE void
416 #define XMALLOCTYPE char
418 XMALLOCTYPE *xmalloc(int);
419 XMALLOCTYPE *xrealloc(XMALLOCTYPE *, int);
420 char *xstrdup(const char *);
421 #if defined(HAVE_ALLOCA_H)
428 #define xalloca(ptr, t, n) if (!(ptr = (t) alloca(n))) error(PS_UNDEFINED, 0, "alloca failed")
430 /* protocol driver and methods */
431 int do_protocol(struct query *, const struct method *);
432 int doPOP2 (struct query *);
433 int doPOP3 (struct query *);
434 int doIMAP (struct query *);
435 int doETRN (struct query *);
438 struct query *hostalloc(struct query *);
439 int parsecmdline (int, char **, struct runctl *, struct query *);
440 char *MD5Digest (unsigned char *);
441 int POP3_auth_rpa(unsigned char *, unsigned char *, int socket);
442 int daemonize(const char *, void (*)(int));
443 char *getpassword(char *);
444 void escapes(const char *, char *);
445 char *visbuf(const char *);
446 const char *showproto(int);
447 void dump_config(struct runctl *runp, struct query *querylist);
448 int is_host_alias(const char *, struct query *);
449 char *host_fqdn(void);
450 char *rfc822timestamp(void);
453 #endif /* SDPS_ENABLE */
455 void yyerror(const char *);
459 void itimerthread(void*);
460 /* Have to include these first to avoid errors from redefining getcwd
461 and chdir. They're re-include protected in EMX, so it's okay, I
465 /* Redefine getcwd and chdir to get drive-letter support so we can
466 find all of our lock files and stuff. */
467 #define getcwd _getcwd2
468 #define chdir _chdir2
471 #define STRING_DISABLED (char *)-1
472 #define STRING_DUMMY ""
474 /* fetchmail.h ends here */