1 /** \file fetchmail.h header file for fetchmail */
5 * For license terms, see the file COPYING in this directory.
11 #define _NETBSD_SOURCE 1
16 /* We need this for size_t */
17 #include <sys/types.h>
22 #include <sys/socket.h>
34 /** constants designating the various supported protocols -- ordered */
36 P_AUTO = 1 /**< probe IMAP and POP3 - deprecated */,
37 P_POP3 /** POP3, including APOP and KPOP, RFC 1939 et al. */,
38 P_IMAP /** IMAP4, RFC 3501 */,
39 P_ETRN /** ETRN - SMTP Service Extension for Remote Message Queue Starting, "extended TURN", RFC 1985 */,
40 P_ODMR /** ODMR/ATRN - On-Demand Mail Relay SMTP with dynamic addresses/Authenticated TURN, RFC 2645 */
43 #define SMTP_PORT "smtp"
44 #define SMTP_PORT_NUM 25
45 #define KPOP_PORT "kpop"
48 #define SIMAP_PORT 993
49 #define SPOP3_PORT 995
53 * We need to distinguish between mailbox and mailbag protocols.
54 * Under a mailbox protocol wwe're pulling mail for a speecific user.
55 * Under a mailbag protocol we're fetching mail for an entire domain.
57 #define MAILBOX_PROTOCOL(ctl) ((ctl)->server.protocol < P_ETRN)
59 /** authentication types */
61 A_ANY = 0 /**< use the first method that works */,
62 A_PASSWORD /** password authentication */,
63 A_NTLM /** Microsoft NTLM protocol */,
64 A_CRAM_MD5 /** CRAM-MD5 shrouding (RFC2195) */,
65 A_OTP /** One-time password (RFC1508) */,
66 A_APOP /** POP3 APOP */,
67 A_KERBEROS_V5 /** authenticate w/ Kerberos V5 */,
68 A_GSSAPI /** authenticate with GSSAPI */,
69 A_SSH /** authentication at session level */,
70 A_MSN /** same as NTLM with keyword MSN */,
71 A_EXTERNAL /** external authentication (client cert) */
74 /* some protocols or authentication types (KERBEROS, GSSAPI, SSH) don't
75 * require a password */
76 #define NO_PASSWORD(ctl) \
77 ((ctl)->server.authenticate == A_OTP \
78 || (ctl)->server.authenticate == A_KERBEROS_V5 \
79 || (ctl)->server.authenticate == A_GSSAPI \
80 || (ctl)->server.authenticate == A_SSH \
81 || (ctl)->server.authenticate == A_EXTERNAL \
82 || (ctl)->server.protocol == P_ETRN)
85 * Definitions for buffer sizes. We get little help on setting maxima
86 * from IMAP RFCs up to 2060, so these are mostly from POP3.
88 #define HOSTLEN 635 /* max hostname length (RFC1123) */
89 #define POPBUFSIZE 512 /* max length of response (RFC1939) */
90 #define IDLEN 128 /* max length of UID (RFC1939) */
92 /* per RFC1939 this should be 40, but Microsoft Exchange ignores that limit */
93 #define USERNAMELEN 128 /* max POP3 arg length */
95 /* clear a netBSD kernel parameter out of the way */
99 * The RFC822 limit on message line size is just 998. But
100 * make this *way* oversized; idiot DOS-world mailers that
101 * don't line-wrap properly often ship entire paragraphs as
104 #define MSGBUFSIZE 8192
106 #define NAMELEN 64 /* max username length */
107 #define PASSWORDLEN 64 /* max password length */
108 #define DIGESTLEN 33 /* length of MD5 digest */
110 /* exit code values */
111 /* NOTE THAT PS_SUCCESS MUST ALWAYS BE 0 - SOME PARTS OF THE CODE
112 * RELY ON THIS VALUE! */
113 #define PS_SUCCESS 0 /* successful receipt of messages */
114 #define PS_NOMAIL 1 /* no mail available */
115 #define PS_SOCKET 2 /* socket I/O woes */
116 #define PS_AUTHFAIL 3 /* user authorization failed */
117 #define PS_PROTOCOL 4 /* protocol violation */
118 #define PS_SYNTAX 5 /* command-line syntax error */
119 #define PS_IOERR 6 /* bad permissions on rc file */
120 #define PS_ERROR 7 /* protocol error */
121 #define PS_EXCLUDE 8 /* client-side exclusion error */
122 #define PS_LOCKBUSY 9 /* server responded lock busy */
123 #define PS_SMTP 10 /* SMTP error */
124 #define PS_DNS 11 /* fatal DNS error */
125 #define PS_BSMTP 12 /* output batch could not be opened */
126 #define PS_MAXFETCH 13 /* poll ended by fetch limit */
127 #define PS_SERVBUSY 14 /* server is busy */
128 /* leave space for more codes */
129 #define PS_UNDEFINED 23 /* something I hadn't thought of */
130 #define PS_TRANSIENT 24 /* transient failure (internal use) */
131 #define PS_REFUSED 25 /* mail refused (internal use) */
132 #define PS_RETAINED 26 /* message retained (internal use) */
133 #define PS_REPOLL 28 /* repoll immediately with changed parameters (internal use) */
134 #define PS_IDLETIMEOUT 29 /* timeout on imap IDLE (internal use) */
135 #define PS_UNTAGGED 30 /* untagged response on imap command (internal use) */
137 /* output noise level */
138 #define O_SILENT 0 /* mute, max squelch, etc. */
139 #define O_NORMAL 1 /* user-friendly */
140 #define O_VERBOSE 2 /* chatty */
141 #define O_DEBUG 3 /* prolix */
142 #define O_MONITOR O_VERBOSE
144 #define SIZETICKER 1024 /* print 1 dot per this many bytes */
147 * We #ifdef this and use flag rather than bool
148 * to avoid a type clash with curses.h
156 /* we need to use zero as a flag-uninitialized value */
160 /** run control data */
163 char *logfile; /** where to write log information */
164 char *idfile; /** where to store UID data */
165 char *pidfile; /** where to record the PID of daemon mode processes */
166 const char *postmaster;
169 int pinentry_timeout;
171 int poll_interval; /** poll interval in seconds (daemon mode, 0 == off) */
181 /** Dual-use entry of singly-linked list for storing id/status or id/id2
185 char *id; /**< key */
191 flag mark; /**< UID-index information */
193 status; /**< value for id/status pairs */
194 char *id2; /**< value for id/id2 pairs */
195 } val; /**< union to store value for key \a id */
196 struct idlist *next; /**< pointer to next list element */
199 /** List of possible values for idlist::mark */
201 UID_UNSEEN= 0, /**< id hasn't been seen */
202 UID_SEEN= 1, /**< id was seen, but not deleted */
203 UID_DELETED= 2, /**< this message has been marked deleted */
204 UID_EXPUNGED= 3 /**< this message has been expunged */
211 struct method /* describe methods for protocol state machine */
213 const char *name; /* protocol name */
214 const char *service; /* service port (unencrypted) */
215 const char *sslservice; /* service port (SSL) */
216 flag tagged; /* if true, generate & expect command tags */
217 flag delimited; /* if true, accept "." message delimiter */
218 int (*parse_response)(int, char *);
219 /* response_parsing function */
220 int (*getauth)(int, struct query *, char *);
221 /* authorization fetcher */
222 int (*getrange)(int, struct query *, const char *, int *, int *, int *);
223 /* get message range to fetch */
224 int (*getsizes)(int, int, int *);
225 /* get sizes of messages */
226 int (*getpartialsizes)(int, int, int, int *);
227 /* get sizes of subset of messages */
228 int (*is_old)(int, struct query *, int);
229 /* check for old message */
230 int (*fetch_headers)(int, struct query *, int, int *);
231 /* fetch header from a given message */
232 int (*fetch_body)(int, struct query *, int, int *);
233 /* fetch a given message */
234 int (*trail)(int, struct query *, const char *);
235 /* eat trailer of a message */
236 int (*delete_msg)(int, struct query *, int);
238 int (*mark_seen)(int, struct query *, int);
239 /* mark as seen method */
240 int (*end_mailbox_poll)(int, struct query *);
241 /* end-of-mailbox processing */
242 int (*logout_cmd)(int, struct query *);
244 flag retry; /* can getrange poll for new messages? */
247 enum badheader { BHREJECT = 0, BHACCEPT };
249 /* Message retrieval error mode */
250 enum retrieveerror { RE_ABORT = 0, RE_CONTINUE, RE_MARKSEEN };
252 struct hostdata /* shared among all user connections to given server */
255 char *pollname; /* poll label of host */
256 char *via; /* "true" server name if non-NULL */
257 struct idlist *akalist; /* server name first, then akas */
258 struct idlist *localdomains; /* list of pass-through domains */
259 int protocol; /* protocol type */
260 char *service; /* service name */
261 int interval; /* # cycles to skip between polls */
262 int authenticate; /* authentication mode to try */
263 int timeout; /* inactivity timout in seconds */
264 char *envelope; /* envelope address list header */
265 int envskip; /* skip to numbered envelope header */
266 char *qvirtual; /* prefix removed from local user id */
267 flag skip; /* suppress poll in implicit mode? */
268 flag dns; /* do DNS lookup on multidrop? */
270 flag sdps; /* use Demon Internet SDPS *ENV */
271 #endif /* SDPS_ENABLE */
272 flag checkalias; /* resolve aliases by comparing IPs? */
273 flag tracepolls; /* if TRUE, add poll trace info to Received */
274 char *principal; /* Kerberos principal for mail service */
275 char *esmtp_name, *esmtp_password; /* ESMTP AUTH information */
276 enum badheader badheader; /* bad-header {pass|reject} */
277 enum retrieveerror retrieveerror; /* retrieve-error (abort|continue|markseen) */
279 #if defined(linux) || defined(__FreeBSD__)
287 struct interface_pair_s *interface_pair;
290 char *plugin,*plugout;
292 /* computed for internal use */
293 const struct method *base_protocol; /* relevant protocol method table */
294 int poll_count; /* count of polls so far */
295 char *queryname; /* name to attempt DNS lookup on */
296 char *truename; /* "true name" of server host */
297 struct sockaddr *trueaddr; /* IP address of truename */
298 size_t trueaddr_len; /* size of trueaddr data */
299 struct hostdata *lead_server; /* ptr to lead query for this server */
301 int workarounds; /* track which workarounds the user was warned about */
305 * bit flags to set in workarounds after the corresponding warning,
306 * which we assume to be server-specific, has been printed,
307 * so we don't spam our users in daemon mode.
309 #define WKA_TOP (1L << 0) /* Maillennium TOP -> RETR override warning */
313 /* mailserver connection controls */
314 struct hostdata server;
317 struct idlist *localnames; /* including calling user's name */
318 int wildcard; /* should unmatched names be passed through */
319 char *remotename; /* remote login name to use */
320 char *password; /* remote password to use */
321 struct idlist *mailboxes; /* list of mailboxes to check */
324 char *pwmd_socket; /* socket to connect to */
325 char *pwmd_file; /* file to open on the server */
328 /* per-forwarding-target data */
329 struct idlist *smtphunt; /* list of SMTP hosts to try forwarding to */
330 struct idlist *domainlist; /* domainlist to fetch from */
331 char *smtpaddress; /* address to force in RCPT TO */
332 char *smtpname; /* full RCPT TO name, including domain */
333 struct idlist *antispam; /* list of listener's antispam response */
334 const char *mda; /* local MDA to pass mail to */
335 char *bsmtp; /* BSMTP output file */
336 char listener; /* what's the listener's wire protocol? */
337 #define SMTP_MODE 'S'
338 #define LMTP_MODE 'L'
339 char *preconnect; /* pre-connection command to execute */
340 char *postconnect; /* post-connection command to execute */
342 /* per-user control flags */
343 flag keep; /* if TRUE, leave messages undeleted */
344 flag fetchall; /* if TRUE, fetch all (not just unseen) */
345 flag flush; /* if TRUE, delete messages already seen */
346 flag limitflush; /* if TRUE, delete oversized mails */
347 flag rewrite; /* if TRUE, canonicalize recipient addresses */
348 flag stripcr; /* if TRUE, strip CRs in text */
349 flag forcecr; /* if TRUE, force CRs before LFs in text */
350 flag pass8bits; /* if TRUE, ignore Content-Transfer-Encoding */
351 flag dropstatus; /* if TRUE, drop Status lines in mail */
352 flag dropdelivered; /* if TRUE, drop Delivered-To lines in mail */
353 flag mimedecode; /* if TRUE, decode MIME-armored messages */
354 flag idle; /* if TRUE, idle after each poll */
355 int limit; /* limit size of retrieved messages */
356 int warnings; /* size warning interval */
357 int fetchlimit; /* max # msgs to get in single poll */
358 int fetchsizelimit; /* max # msg sizes to get in a request */
359 int fastuidl; /* do binary search for new UIDLs? */
360 int fastuidlcount; /* internal count for frequency of binary search */
361 int batchlimit; /* max # msgs to pass in single SMTP session */
362 int expunge; /* max # msgs to pass between expunges */
363 flag use_ssl; /* use SSL encrypted session */
364 char *sslkey; /* optional SSL private key file */
365 char *sslcert; /* optional SSL certificate file */
366 char *sslproto; /** force transport protocol (ssl2|ssl3|ssl23|tls1) - if NULL,
367 use ssl23 for SSL and opportunistic tls1 for non-SSL connections. */
368 char *sslcertfile; /* Trusted certificate file for checking the server cert */
369 char *sslcertpath; /* Trusted certificate directory for checking the server cert */
370 flag sslcertck; /* Strictly check the server cert. */
371 char *sslcommonname; /* CommonName to expect from server */
372 char *sslfingerprint; /* Fingerprint to check against */
373 char *properties; /* passthrough properties for extensions */
375 /* internal use -- per-poll state */
376 flag active; /* should we actually poll this server? */
377 char *destaddr; /* destination host for this query */
378 int errcount; /* count transient errors in last pass */
379 int authfailcount; /* count of authorization failures */
380 int wehaveauthed; /* We've managed to logon at least once! */
381 int wehavesentauthnote; /* We've sent an authorization failure note */
382 int wedged; /* wedged by auth failures or timeouts? */
383 char *smtphost; /* actual SMTP host we connected to */
384 char smtphostmode; /* what's the actual SMTP host's wire protocol? */
385 int smtp_socket; /* socket descriptor for SMTP connection */
386 unsigned int uid; /* UID of user to deliver to */
387 struct idlist *skipped; /* messages skipped on the mail server */
388 struct uid_db oldsaved, newsaved;
389 char lastdigest[DIGESTLEN]; /* last MD5 hash seen on this connection */
390 char *folder; /* folder currently being polled */
392 /* internal use -- per-message state */
393 int mimemsg; /* bitmask indicating MIME body-type */
394 unsigned char digest[DIGESTLEN]; /* md5 digest buffer */
396 /* internal use -- housekeeping */
397 struct query *next; /* next query control block in chain */
400 struct msgblk /** message header parsed for open_sink() */
402 char *headers; /**< raw message headers */
403 struct idlist *recipients; /**< addressees */
404 char return_path[HOSTLEN + USERNAMELEN + 4]; /**< envelope sender */
411 * Numeric option handling. Numeric option value of zero actually means
412 * it's unspecified. Value less than zero is zero. The reason for this
413 * screwy encoding is so we can zero out an option block in order to set the
414 * numeric flags in it to unspecified.
416 #define NUM_VALUE_IN(n) (((n) == 0) ? -1 : (n))
417 #define NUM_VALUE_OUT(n) (((n) < 0) ? 0 : (n))
418 #define NUM_NONZERO(n) ((n) > 0)
419 #define NUM_ZERO(n) ((n) < 0)
420 #define NUM_SPECIFIED(n) ((n) != 0)
422 #define MULTIDROP(ctl) ((ctl)->wildcard || \
423 ((ctl)->localnames && (ctl)->localnames->next))
426 * Note: tags are generated with an a%04d format from a 1-origin
427 * integer sequence number. Length 4 permits transaction numbers
428 * up to 9999, so we force rollover with % 10000. There's no special
429 * reason for this format other than to look like the exmples in the
432 #define TAGLEN 6 /* 'a' + 4 digits + NUL */
433 extern char tag[TAGLEN];
436 /* list of hosts assembled from run control file and command line */
437 extern struct query cmd_opts, *querylist;
439 /* what's returned by envquery */
440 extern void envquery(int, char **);
442 /* controls the detail level of status/progress messages written to stderr */
443 extern int outlevel; /* see the O_.* constants above */
444 extern int yydebug; /* enable parse debugging */
446 /* these get computed */
447 extern int batchcount; /* count of messages sent in current batch */
448 extern flag peek_capable; /* can we read msgs without setting seen? */
450 /* miscellaneous global controls */
451 extern struct runctl run; /* global controls for this run */
452 extern flag nodetach; /* if TRUE, don't detach daemon process */
453 extern flag quitmode; /* if --quit was set */
454 extern int quitind; /* optind after position of last --quit option */
455 extern flag check_only; /* if --check was set */
456 extern char *rcfile; /* path name of rc file */
457 extern int linelimit; /* limit # lines retrieved per site */
458 extern flag versioninfo; /* emit only version info */
459 extern char *user; /* name of invoking user */
460 extern char *home; /* home directory of invoking user */
461 extern char *fmhome; /* fetchmail home directory */
462 extern int pass; /* number of re-polling pass */
463 extern flag configdump; /* dump control blocks as Python dictionary */
464 extern const char *fetchmailhost; /* either "localhost" or an FQDN */
465 extern int suppress_tags; /* suppress tags in tagged protocols? */
466 extern char shroud[PASSWORDLEN*2+3]; /* string to shroud in debug output */
468 extern char *sdps_envfrom;
469 extern char *sdps_envto;
470 #endif /* SDPS_ENABLE */
472 extern const char *iana_charset; /* IANA assigned charset name */
474 /* from/for ucs/norm_charmap.c */
475 #include "ucs/norm_charmap.h"
477 /* prototypes for globally callable functions */
479 /* from /usr/include/sys/cdefs.h */
480 #if !defined __GNUC__
481 # define __attribute__(xyz) /* Ignore. */
484 /* error.c: Error reporting */
485 void report_init(int foreground);
486 /** Flush partial message, suppress program name tag for next report printout. */
487 void report_flush(FILE *fp);
488 void report (FILE *fp, const char *format, ...)
489 __attribute__ ((format (printf, 2, 3)))
491 void report_build (FILE *fp, const char *format, ...)
492 __attribute__ ((format (printf, 2, 3)))
494 void report_complete (FILE *fp, const char *format, ...)
495 __attribute__ ((format (printf, 2, 3)))
497 void report_at_line (FILE *fp, int, const char *, unsigned int, const char *, ...)
498 __attribute__ ((format (printf, 5, 6)))
501 /* driver.c -- main driver loop */
502 void set_timeout(int);
503 int is_idletimeout(void);
504 void resetidletimeout(void);
505 int do_protocol(struct query *, const struct method *);
507 /* transact.c: transaction support */
508 /** \ingroup gen_recv_split
509 * Data structure to cache data between \func gen_recv_split calls,
510 * must be initialized before use by calling \func gen_recv_split_init. */
513 char prefix[100]; /**< prefix to match/repeat when splitting lines */
514 int cached; /**< flag to record if we have data cached in \a buf */
515 char buf[MSGBUFSIZE]; /**< buffer for cached data */
518 void init_transact(const struct method *);
519 int readheaders(int sock,
524 flag *suppress_readbody);
525 int readbody(int sock, struct query *ctl, flag forward, int len);
526 void gen_send(int sock, const char *, ... )
527 __attribute__ ((format (printf, 2, 3)))
529 int gen_recv(int sock, char *buf, int size);
530 void gen_recv_split_init(const char *prefix, struct RecvSplit *rs);
531 int gen_recv_split(int sock, char *buf, int size, struct RecvSplit *rs);
532 int gen_transact(int sock, const char *, ... )
533 __attribute__ ((format (printf, 2, 3)))
535 extern struct msgblk msgblk;
537 /* use these to track what was happening when the nonresponse timer fired */
538 #define GENERAL_WAIT 0 /* unknown wait type */
539 #define OPEN_WAIT 1 /* waiting from mailserver open */
540 #define SERVER_WAIT 2 /* waiting for mailserver response */
541 #define LISTENER_WAIT 3 /* waiting for listener initialization */
542 #define FORWARDING_WAIT 4 /* waiting for listener response */
545 /* response hooks can use this to identify the query stage */
546 #define STAGE_GETAUTH 0
547 #define STAGE_GETRANGE 1
548 #define STAGE_GETSIZES 2
549 #define STAGE_FETCH 3
551 #define STAGE_LOGOUT 5
554 extern int mytimeout;
556 /* mark values for name lists */
557 #define XMIT_ACCEPT 1 /* accepted; matches local domain or name */
558 #define XMIT_REJECT 2 /* rejected; no match */
559 #define XMIT_RCPTBAD 3 /* SMTP listener rejected the name */
562 int interruptible_idle(int interval);
563 extern volatile int lastsig;
565 /* sink.c: forwarding */
566 void smtp_close(struct query *, int);
567 int smtp_open(struct query *);
568 int smtp_setup(struct query *);
569 char *rcpt_address(struct query *, const char *, int);
570 int stuffline(struct query *, char *);
571 int open_sink(struct query*, struct msgblk *, int*, int*);
572 void release_sink(struct query *);
573 int close_sink(struct query *, struct msgblk *, flag);
574 int open_warning_by_mail(struct query *);
575 void stuff_warning(const char *, struct query *, const char *, ... )
576 __attribute__ ((format (printf, 3, 4)))
578 void close_warning_by_mail(struct query *, struct msgblk *);
579 void abort_message_sink(struct query *ctl);
581 /* rfc822.c: RFC822 header parsing */
582 char *reply_hack(char *, const char *, size_t *);
583 char *nxtaddr(const char *);
585 /* uid.c: UID support */
586 extern int dofastuidl;
587 void initialize_saved_lists(struct query *hostlist, const char *idfile);
588 void expunge_uids(struct query *ctl);
589 void uid_swap_lists(struct query *ctl);
590 void uid_discard_new_list(struct query *ctl);
591 void uid_reset_num(struct query *ctl);
592 void write_saved_lists(struct query *hostlist, const char *idfile);
595 struct idlist *save_str(struct idlist **idl, const char *str, flag status);
596 void free_str_list(struct idlist **idl);
597 void save_str_pair(struct idlist **idl, const char *str1, const char *str2);
598 struct idlist *str_in_list(struct idlist **idl, const char *str, const flag caseblind);
599 int str_nr_in_list(struct idlist **idl, const char *str);
600 int str_nr_last_in_list(struct idlist **idl, const char *str);
601 void str_set_mark(struct idlist **idl, const char *str, const flag val);
602 int count_list(struct idlist **idl);
603 char *str_from_nr_list(struct idlist **idl, long number);
604 char *str_find(struct idlist **idl, long number);
605 struct idlist *id_find(struct idlist **idl, long number);
606 char *idpair_find(struct idlist **idl, const char *id);
607 int delete_str(struct idlist **idl, long num);
608 struct idlist *copy_str_list(struct idlist *idl);
609 void append_str_list(struct idlist **idl, struct idlist **nidl);
612 int prc_parse_file(const char *, const flag);
613 int prc_filecheck(const char *, const flag);
616 void to64frombits(char *, const void *, int);
617 int from64tobits(void *, const char *, int maxlen);
620 /* Bit-mask returned by MimeBodyType */
621 #define MSG_IS_7BIT 0x01
622 #define MSG_IS_8BIT 0x02
623 #define MSG_NEEDS_DECODE 0x80
624 extern void UnMimeHeader(char *buf);
625 extern int MimeBodyType(char *hdrs, int WantDecode);
626 extern int UnMimeBodyline(char **buf, flag delimited, flag issoftline);
629 void interface_init(void);
630 void interface_parse(char *, struct hostdata *);
631 void interface_note_activity(struct hostdata *);
632 int interface_approve(struct hostdata *, flag domonitor);
636 /* protocol driver and methods */
637 int doPOP3 (struct query *);
638 int doIMAP (struct query *);
639 int doETRN (struct query *);
640 int doODMR (struct query *);
642 /* authentication functions */
643 int do_cram_md5(int sock, const char *command, struct query *ctl, const char *strip);
644 int check_gss_creds(const char *service, const char *hostname);
645 int do_gssauth(int sock, const char *command, const char *service, const char *hostname, const char *username);
646 int do_otp(int sock, const char *command, struct query *ctl);
650 /* these should be of size PATH_MAX */
651 extern char currentwd[1024], rcfiledir[1024];
653 struct query *hostalloc(struct query *);
654 int parsecmdline (int, char **, struct runctl *, struct query *, flag *);
655 char *prependdir (const char *, const char *);
656 char *MD5Digest (unsigned const char *);
657 void hmac_md5 (const unsigned char *, size_t, const unsigned char *, size_t, unsigned char *, size_t);
658 int POP3_auth_rpa(char *, char *, int socket);
659 typedef void (*SIGHANDLERTYPE) (int);
660 void deal_with_sigchld(void);
661 void null_signal_handler(int sig);
662 SIGHANDLERTYPE set_signal_handler(int sig, SIGHANDLERTYPE handler);
663 int daemonize(const char *);
664 char *fm_getpassword(char *);
665 void escapes(const char *, char *);
666 char *visbuf(const char *);
667 const char *showproto(int);
668 void dump_config(struct runctl *runp, struct query *querylist);
669 int is_host_alias(const char *, struct query *, struct addrinfo **);
671 extern struct addrinfo *ai0, *ai1;
673 /** Try to obtain fully qualified hostname of current host. Exit with
674 * PS_DNS if \a required is true and there is a DNS error. Exit with
675 * PS_DNS if gethostname() fails, independent of the value of \a
678 * - fully qualified hostname if \a required is non-zero.
679 * - unqualified or fully qualified hostname if \a required is zero (0).
681 char *host_fqdn(int required /** exit with PS_DNS if the name cannot be qualified */);
682 char *rfc822timestamp(void);
684 char *rfc2047e(const char*, const char *);
686 void yyerror(const char *);
689 #define STRING_DISABLED (char *)-1
690 #define STRING_DUMMY ""
693 char *stpcpy(char *, const char*);
698 #else /* !__CYGWIN__ */
700 #endif /* __CYGWIN__ */
702 extern int mailserver_socket_temp;
703 extern const char *program_name;
705 /* POSIX space characters,
706 * <tab>;<newline>;<vertical-tab>;<form-feed>;<carriage-return>;<space> */
707 #define POSIX_space "\t\n\v\f\r "
709 /** Resolve the a TCP service name or a string containing only a decimal
710 * positive integer to a port number. Returns -1 for error. */
711 int servport(const char *service);
713 #ifndef HAVE_GETNAMEINFO
714 # define NI_NUMERICHOST 1
715 # define NI_NUMERICSERV 2
717 # define NI_NAMEREQD 8
721 int fm_getaddrinfo(const char *node, const char *serv, const struct addrinfo *hints, struct addrinfo **res);
722 void fm_freeaddrinfo(struct addrinfo *ai);
724 /* prototypes from tls.c */
725 int maybe_tls(struct query *ctl);
726 int must_tls(struct query *ctl);
728 /* prototype from rfc822valid.c */
729 int rfc822_valid_msgid(const unsigned char *);
731 /* prototype from x509_name_match.c */
732 int name_match(const char *p1, const char *p2);
734 /* prototype from ntlmsubr.c */
736 int ntlm_helper(int sock, struct query *ctl, const char *protocol);
739 /* macro to determine if we want to spam progress to stdout */
740 #define want_progress() \
741 ((outlevel >= O_VERBOSE || (outlevel > O_SILENT && run.showdots)) \
743 && (run.showdots || !is_a_file(1)))
746 /* fetchmail.h ends here */