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cpstripped: Split into two versions, each with a single #ifdef.
[nmh] / uip / post.c
1 /* post.c -- enter messages into the mail transport system
2 *
3 * This code is Copyright (c) 2002, by the authors of nmh. See the
4 * COPYRIGHT file in the root directory of the nmh distribution for
5 * complete copyright information.
6 */
7
8 #include <h/mh.h>
9 #include <fcntl.h>
10 #include <h/signals.h>
11 #include <h/addrsbr.h>
12 #include <h/aliasbr.h>
13 #include <h/dropsbr.h>
14 #include <h/mime.h>
15 #include <h/utils.h>
16 #include <h/tws.h>
17 #include <h/mts.h>
18 #include "../sbr/m_mktemp.h"
19 #include "../sbr/message_id.h"
20
21 #ifdef HAVE_SYS_TIME_H
22 # include <sys/time.h>
23 #endif
24 #include <time.h>
25
26 #include <mts/smtp/smtp.h>
27
28 #ifndef CYRUS_SASL
29 # define SASLminc(a) (a)
30 #else /* CYRUS_SASL */
31 # define SASLminc(a) 0
32 #endif /* CYRUS_SASL */
33
34 #ifndef TLS_SUPPORT
35 # define TLSminc(a) (a)
36 #else /* TLS_SUPPORT */
37 # define TLSminc(a) 0
38 #endif /* TLS_SUPPORT */
39
40 #ifndef OAUTH_SUPPORT
41 # define OAUTHminc(a) (a)
42 #else /* OAUTH_SUPPORT */
43 # define OAUTHminc(a) 0
44 #endif /* OAUTH_SUPPORT */
45
46 #define FCCS 10 /* max number of fccs allowed */
47
48 /* In the following array of structures, the numeric second field of the
49 structures (minchars) is apparently used like this:
50
51 -# : Switch can be abbreviated to # characters; switch hidden in -help.
52 0 : Switch can't be abbreviated; switch shown in -help.
53 # : Switch can be abbreviated to # characters; switch shown in -help. */
54
55 #define POST_SWITCHES \
56 X("alias aliasfile", 0, ALIASW) \
57 X("check", -5, CHKSW) /* interface from whom */ \
58 X("nocheck", -7, NCHKSW) /* interface from whom */ \
59 X("debug", -5, DEBUGSW) \
60 X("dist", -4, DISTSW) /* interface from dist */ \
61 X("filter filterfile", 0, FILTSW) \
62 X("nofilter", 0, NFILTSW) \
63 X("format", 0, FRMTSW) \
64 X("noformat", 0, NFRMTSW) \
65 X("library directory", -7, LIBSW) /* interface from send, whom */ \
66 X("mime", 0, MIMESW) \
67 X("nomime", 0, NMIMESW) \
68 X("msgid", 0, MSGDSW) \
69 X("nomsgid", 0, NMSGDSW) \
70 X("verbose", 0, VERBSW) \
71 X("noverbose", 0, NVERBSW) \
72 X("watch", 0, WATCSW) \
73 X("nowatch", 0, NWATCSW) \
74 X("whom", -4, WHOMSW) /* interface from whom */ \
75 X("width columns", 0, WIDTHSW) \
76 X("version", 0, VERSIONSW) \
77 X("help", 0, HELPSW) \
78 X("dashstuffing", -12, BITSTUFFSW) /* should we dashstuff BCC messages? */ \
79 X("nodashstuffing", -14, NBITSTUFFSW) \
80 X("idanno number", -6, ANNOSW) /* interface from send */ \
81 X("client host", -6, CLIESW) \
82 X("server host", 6, SERVSW) /* specify alternate SMTP server */ \
83 X("snoop", -5, SNOOPSW) /* snoop the SMTP transaction */ \
84 X("partno", -6, PARTSW) \
85 X("sasl", SASLminc(4), SASLSW) \
86 X("nosasl", SASLminc(6), NOSASLSW) \
87 X("saslmech", SASLminc(5), SASLMECHSW) \
88 X("user", SASLminc(-4), USERSW) \
89 X("port server submission port name/number", 4, PORTSW) \
90 X("tls", TLSminc(-3), TLSSW) \
91 X("initialtls", TLSminc(-10), INITTLSSW) \
92 X("notls", TLSminc(-5), NTLSSW) \
93 X("certverify", TLSminc(-10), CERTVERSW) \
94 X("nocertverify", TLSminc(-12), NOCERTVERSW) \
95 X("fileproc", -4, FILEPROCSW) \
96 X("mhlproc", -3, MHLPROCSW) \
97 X("sendmail program", 0, MTSSM) \
98 X("mts smtp|sendmail/smtp|sendmail/pipe", 2, MTSSW) \
99 X("credentials legacy|file:filename", 0, CREDENTIALSSW) \
100 X("messageid localname|random", 2, MESSAGEIDSW) \
101 X("authservice auth-service-name", OAUTHminc(-11), AUTHSERVICESW) \
102 X("oauthcredfile credential-file", OAUTHminc(-7), OAUTHCREDFILESW) \
103 X("oauthclientid client-id", OAUTHminc(-12), OAUTHCLIDSW) \
104 X("oauthclientsecret client-secret", OAUTHminc(-12), OAUTHCLSECSW) \
105 X("oauthauthendpoint authentication-endpoint", OAUTHminc(-6), OAUTHAUTHENDSW) \
106 X("oauthredirect redirect-uri", OAUTHminc(-6), OAUTHREDIRSW) \
107 X("oauthtokenendpoint token-endpoint", OAUTHminc(-6), OAUTHTOKENDSW) \
108 X("oauthscope scope", OAUTHminc(-6), OAUTHSCOPESW) \
109
110 #define X(sw, minchars, id) id,
111 DEFINE_SWITCH_ENUM(POST);
112 #undef X
113
114 #define X(sw, minchars, id) { sw, minchars, id },
115 DEFINE_SWITCH_ARRAY(POST, switches);
116 #undef X
117
118
119 /*
120 * Mapping between command-line switches and profile entries, communicated
121 * from 'send'. We use a service name of 'post' internally.
122 */
123
124 static struct {
125 const char *profname;
126 int switchnum;
127 const char *value;
128 } oauthswitches[] = {
129 { "oauth-%s-credential-file", OAUTHCREDFILESW, NULL },
130 { "oauth-%s-client_id", OAUTHCLIDSW, NULL },
131 { "oauth-%s-client_secret", OAUTHCLSECSW, NULL },
132 { "oauth-%s-auth_endpoint", OAUTHAUTHENDSW, NULL },
133 { "oauth-%s-redirect_uri", OAUTHREDIRSW, NULL },
134 { "oauth-%s-token_endpoint", OAUTHTOKENDSW, NULL },
135 { "oauth-%s-scope", OAUTHSCOPESW, NULL },
136 { NULL, 0, NULL }
137 };
138
139 struct headers {
140 char *value;
141 unsigned int flags;
142 unsigned int set;
143 };
144
145 /*
146 * flags for headers->flags
147 */
148 #define HNOP 0x0000 /* just used to keep .set around */
149 #define HBAD 0x0001 /* bad header - don't let it through */
150 #define HADR 0x0002 /* header has an address field */
151 #define HSUB 0x0004 /* Subject: header */
152 #define HTRY 0x0008 /* try to send to addrs on header */
153 #define HBCC 0x0010 /* don't output this header, unless MTS_SENDMAIL_PIPE */
154 #define HMNG 0x0020 /* munge this header */
155 #define HNGR 0x0040 /* no groups allowed in this header */
156 #define HFCC 0x0080 /* FCC: type header */
157 #define HNIL 0x0100 /* okay for this header not to have addrs */
158 #define HIGN 0x0200 /* ignore this header */
159 #define HDCC 0x0400 /* another undocumented feature */
160 #define HONE 0x0800 /* Only (zero or) one address allowed */
161 #define HEFM 0x1000 /* Envelope-From: header */
162 #define HMIM 0x2000 /* MIME-Version: header */
163 #define HCTE 0x4000 /* Content-Transfer-Encoding: header */
164
165 /*
166 * flags for headers->set
167 */
168 #define MFRM 0x0001 /* we've seen a From: */
169 #define MDAT 0x0002 /* we've seen a Date: */
170 #define MRFM 0x0004 /* we've seen a Resent-From: */
171 #define MVIS 0x0008 /* we've seen sighted addrs */
172 #define MINV 0x0010 /* we've seen blind addrs */
173 #define MSND 0x0020 /* we've seen a Sender: */
174 #define MRSN 0x0040 /* We've seen a Resent-Sender: */
175 #define MEFM 0x0080 /* We've seen Envelope-From: */
176 #define MMIM 0x0100 /* We've seen Mime-Version: */
177
178 static struct headers NHeaders[] = {
179 { "Return-Path", HBAD, 0 },
180 { "Received", HBAD, 0 },
181 { "Reply-To", HADR|HNGR, 0 },
182 { "From", HADR|HNGR, MFRM },
183 { "Sender", HADR|HNGR|HONE, MSND },
184 { "Date", HBAD, 0 },
185 { "Subject", HSUB, 0 },
186 { "To", HADR|HTRY, MVIS },
187 { "cc", HADR|HTRY, MVIS },
188 { "Bcc", HADR|HTRY|HBCC|HNIL, MINV },
189 { "Dcc", HADR|HTRY|HDCC|HNIL, MVIS }, /* sorta cc & bcc combined */
190 { "Message-ID", HBAD, 0 },
191 { "Fcc", HFCC, 0 },
192 { "Envelope-From", HADR|HONE|HEFM, MEFM },
193 { "MIME-Version", HMIM, MMIM },
194 { "Content-Transfer-Encoding", HCTE, 0 },
195 { NULL, 0, 0 }
196 };
197
198 static struct headers RHeaders[] = {
199 { "Resent-Reply-To", HADR|HNGR, 0 },
200 { "Resent-From", HADR|HNGR, MRFM },
201 { "Resent-Sender", HADR|HNGR, MRSN },
202 { "Resent-Date", HBAD, 0 },
203 { "Resent-Subject", HSUB, 0 },
204 { "Resent-To", HADR|HTRY, MVIS },
205 { "Resent-cc", HADR|HTRY, MVIS },
206 { "Resent-Bcc", HADR|HTRY|HBCC, MINV },
207 { "Resent-Message-ID", HBAD, 0 },
208 { "Resent-Fcc", HFCC, 0 },
209 { "Reply-To", HADR, 0 },
210 { "From", HADR|HNGR, MFRM },
211 { "Sender", HADR|HNGR, MSND },
212 { "Date", HNOP, MDAT },
213 { "To", HADR|HNIL, 0 },
214 { "cc", HADR|HNIL, 0 },
215 { "Bcc", HADR|HTRY|HBCC|HNIL, 0 },
216 { "Fcc", HIGN, 0 },
217 { "Envelope-From", HADR|HONE|HEFM, MEFM },
218 { "MIME-Version", HMIM, MMIM },
219 { "Content-Transfer-Encoding", HCTE, 0 },
220 { NULL, 0, 0 }
221 };
222
223 static short fccind = 0; /* index into fccfold[] */
224 static short outputlinelen = OUTPUTLINELEN;
225
226 static int pfd = NOTOK; /* fd to write annotation list to */
227 static int recipients = 0; /* how many people will get a copy */
228 static int unkadr = 0; /* how many of those were unknown */
229 static int badadr = 0; /* number of bad addrs */
230 static int badmsg = 0; /* message has bad semantics */
231 static int verbose = 0; /* spell it out */
232 static int format = 1; /* format addresses */
233 static int mime = 0; /* use MIME-style encapsulations for Bcc */
234 static int msgid = 0; /* add msgid */
235 static int debug = 0; /* debugging post */
236 static int watch = 0; /* watch the delivery process */
237 static int whomsw = 0; /* we are whom not post */
238 static int checksw = 0; /* whom -check */
239 static int linepos=0; /* putadr()'s position on the line */
240 static int nameoutput=0; /* putadr() has output header name */
241 static int sasl=0; /* Use SASL auth for SMTP */
242 static char *saslmech=NULL; /* Force use of particular SASL mech */
243 static char *user=NULL; /* Authenticate as this user */
244 static char *port="submission"; /* Name of server port for SMTP submission */
245 static int tlsflag=0; /* Flags to control TLS settings */
246 static int fromcount=0; /* Count of addresses on From: header */
247 static int seensender=0; /* Have we seen a Sender: header? */
248
249 static unsigned msgflags = 0; /* what we've seen */
250
251 #define NORMAL 0
252 #define RESENT 1
253 static int msgstate = NORMAL;
254
255 static time_t tclock = 0; /* the time we started (more or less) */
256
257 static SIGNAL_HANDLER hstat, istat, qstat, tstat;
258
259 static char tmpfil[BUFSIZ];
260 static char bccfil[BUFSIZ];
261
262 static char from[BUFSIZ]; /* my network address */
263 static char sender[BUFSIZ]; /* my Sender: header */
264 static char efrom[BUFSIZ]; /* my Envelope-From: header */
265 static char fullfrom[BUFSIZ]; /* full contents of From header */
266 static char *filter = NULL; /* the filter for BCC'ing */
267 static char *subject = NULL; /* the subject field for BCC'ing */
268 static char *fccfold[FCCS]; /* foldernames for FCC'ing */
269 enum encoding { UNKNOWN = 0, BINARY = 1, SEVENBIT = 7, EIGHTBIT = 8 };
270 static enum encoding cte = UNKNOWN;
271
272 static struct headers *hdrtab; /* table for the message we're doing */
273
274 static struct mailname localaddrs; /* local addrs */
275 static struct mailname netaddrs; /* network addrs */
276 static struct mailname uuaddrs; /* uucp addrs */
277 static struct mailname tmpaddrs; /* temporary queue */
278
279 static int snoop = 0;
280 static char *clientsw = NULL;
281 static char *serversw = NULL;
282
283 static char prefix[] = "----- =_aaaaaaaaaa";
284
285 static char *partno = NULL;
286
287 /*
288 * static prototypes
289 */
290 static void putfmt (char *, char *, int *, FILE *);
291 static void start_headers (void);
292 static void finish_headers (FILE *);
293 static int get_header (char *, struct headers *);
294 static int putadr (char *, char *, struct mailname *, FILE *, unsigned int,
295 char *, unsigned int);
296 static void putgrp (char *, char *, FILE *, unsigned int);
297 static int insert (struct mailname *);
298 static void pl (void);
299 static void anno (void);
300 static int annoaux (struct mailname *);
301 static void insert_fcc (struct headers *, char *);
302 static void make_bcc_file (int);
303 static void verify_all_addresses (int, int, char *, int, char *);
304 static void chkadr (void);
305 static void sigon (void);
306 static void sigoff (void);
307 static void p_refile (char *);
308 static void fcc (char *, char *);
309 static void die (char *, char *, ...);
310 static void post (char *, int, int, int, char *, int, char *);
311 static void do_text (char *file, int fd);
312 static void do_an_address (struct mailname *, int);
313 static void do_addresses (int, int);
314 static int find_prefix (void);
315
316
317 int
318 main (int argc, char **argv)
319 {
320 int state, compnum, dashstuff = 0, swnum, oauth_flag = 0, tls = -1;
321 int noverify = 0;
322 int eai = 0; /* use Email Address Internationalization (EAI) (SMTPUTF8) */
323 char *cp, *msg = NULL, **argp, **arguments, *envelope;
324 char buf[NMH_BUFSIZ], name[NAMESZ], *auth_svc = NULL;
325 FILE *in, *out;
326 m_getfld_state_t gstate = 0;
327
328 if (nmh_init(argv[0], 0 /* use context_foil() */)) { return 1; }
329
330 mts_init ();
331 arguments = getarguments (invo_name, argc, argv, 0);
332 argp = arguments;
333
334 while ((cp = *argp++)) {
335 if (*cp == '-') {
336 switch ((swnum = smatch (++cp, switches))) {
337 case AMBIGSW:
338 ambigsw (cp, switches);
339 done (1);
340 case UNKWNSW:
341 adios (NULL, "-%s unknown", cp);
342
343 case HELPSW:
344 snprintf (buf, sizeof(buf), "%s [switches] file", invo_name);
345 print_help (buf, switches, 0);
346 done (0);
347 case VERSIONSW:
348 print_version(invo_name);
349 done (0);
350
351 case LIBSW:
352 if (!(cp = *argp++) || *cp == '-')
353 adios (NULL, "missing argument to %s", argp[-2]);
354 /* create a minimal context */
355 if (context_foil (cp) == -1)
356 done (1);
357 continue;
358
359 case ALIASW:
360 if (!(cp = *argp++) || *cp == '-')
361 adios (NULL, "missing argument to %s", argp[-2]);
362 if ((state = alias (cp)) != AK_OK)
363 adios (NULL, "aliasing error in %s - %s",
364 cp, akerror (state));
365 continue;
366
367 case CHKSW:
368 checksw++;
369 continue;
370 case NCHKSW:
371 checksw = 0;
372 continue;
373
374 case DEBUGSW:
375 debug++;
376 continue;
377
378 case DISTSW:
379 msgstate = RESENT;
380 continue;
381
382 case FILTSW:
383 if (!(filter = *argp++) || *filter == '-')
384 adios (NULL, "missing argument to %s", argp[-2]);
385 mime = 0;
386 continue;
387 case NFILTSW:
388 filter = NULL;
389 continue;
390
391 case FRMTSW:
392 format++;
393 continue;
394 case NFRMTSW:
395 format = 0;
396 continue;
397
398 case BITSTUFFSW:
399 dashstuff = 1;
400 continue;
401 case NBITSTUFFSW:
402 dashstuff = -1;
403 continue;
404
405 case MIMESW:
406 mime++;
407 filter = NULL;
408 continue;
409 case NMIMESW:
410 mime = 0;
411 continue;
412
413 case MSGDSW:
414 msgid++;
415 continue;
416 case NMSGDSW:
417 msgid = 0;
418 continue;
419
420 case VERBSW:
421 verbose++;
422 continue;
423 case NVERBSW:
424 verbose = 0;
425 continue;
426
427 case WATCSW:
428 watch++;
429 continue;
430 case NWATCSW:
431 watch = 0;
432 continue;
433
434 case WHOMSW:
435 whomsw++;
436 continue;
437
438 case WIDTHSW:
439 if (!(cp = *argp++) || *cp == '-')
440 adios (NULL, "missing argument to %s", argp[-2]);
441 if ((outputlinelen = atoi (cp)) < 10)
442 adios (NULL, "impossible width %d", outputlinelen);
443 continue;
444
445 case ANNOSW:
446 if (!(cp = *argp++) || *cp == '-')
447 adios (NULL, "missing argument to %s", argp[-2]);
448 if ((pfd = atoi (cp)) <= 2)
449 adios (NULL, "bad argument %s %s", argp[-2], cp);
450 continue;
451
452 case CLIESW:
453 if (!(clientsw = *argp++) || *clientsw == '-')
454 adios (NULL, "missing argument to %s", argp[-2]);
455 continue;
456 case SERVSW:
457 if (!(serversw = *argp++) || *serversw == '-')
458 adios (NULL, "missing argument to %s", argp[-2]);
459 continue;
460 case SNOOPSW:
461 snoop++;
462 continue;
463
464 case PARTSW:
465 if (!(partno = *argp++) || *partno == '-')
466 adios (NULL, "missing argument to %s", argp[-2]);
467 continue;
468
469 case SASLSW:
470 sasl++;
471 continue;
472
473 case NOSASLSW:
474 sasl = 0;
475 continue;
476
477 case SASLMECHSW:
478 if (!(saslmech = *argp++) || *saslmech == '-')
479 adios (NULL, "missing argument to %s", argp[-2]);
480 continue;
481
482 case AUTHSERVICESW:
483 if (!(auth_svc = *argp++) || *auth_svc == '-')
484 adios (NULL, "missing argument to %s", argp[-2]);
485 oauth_flag++;
486 continue;
487
488 case OAUTHCREDFILESW:
489 case OAUTHCLIDSW:
490 case OAUTHCLSECSW:
491 case OAUTHAUTHENDSW:
492 case OAUTHREDIRSW:
493 case OAUTHTOKENDSW:
494 case OAUTHSCOPESW:
495 {
496 int i;
497
498 if (!(cp = *argp++) || *cp == '-')
499 adios (NULL, "missing argument to %s", argp[-2]);
500
501 for (i = 0; oauthswitches[i].profname != NULL; i++) {
502 if (oauthswitches[i].switchnum == swnum) {
503 oauthswitches[i].value = cp;
504 break;
505 }
506 }
507
508 if (oauthswitches[i].profname == NULL)
509 adios (NULL, "internal error: cannot map switch %s "
510 "to profile entry", argp[-2]);
511
512 oauth_flag++;
513 continue;
514 }
515
516 case USERSW:
517 if (!(user = *argp++) || *user == '-')
518 adios (NULL, "missing argument to %s", argp[-2]);
519 continue;
520
521 case PORTSW:
522 if (!(port = *argp++) || *port == '-')
523 adios (NULL, "missing argument to %s", argp[-2]);
524 continue;
525
526 case TLSSW:
527 tls = 1;
528 continue;
529
530 case INITTLSSW:
531 tls = 2;
532 continue;
533
534 case NTLSSW:
535 tls = 0;
536 continue;
537
538 case CERTVERSW:
539 noverify = 0;
540 continue;
541
542 case NOCERTVERSW:
543 noverify++;
544 continue;
545
546 case FILEPROCSW:
547 if (!(cp = *argp++) || *cp == '-')
548 adios (NULL, "missing argument to %s", argp[-2]);
549 fileproc = cp;
550 continue;
551
552 case MHLPROCSW:
553 if (!(cp = *argp++) || *cp == '-')
554 adios (NULL, "missing argument to %s", argp[-2]);
555 mhlproc = cp;
556 continue;
557
558 case MTSSM:
559 if (!(cp = *argp++) || *cp == '-')
560 adios (NULL, "missing argument to %s", argp[-2]);
561 sendmail = cp;
562 continue;
563
564 case MTSSW:
565 if (!(cp = *argp++) || *cp == '-')
566 adios (NULL, "missing argument to %s", argp[-2]);
567 save_mts_method (cp);
568 continue;
569
570 case CREDENTIALSSW: {
571 if (!(cp = *argp++) || *cp == '-')
572 adios (NULL, "missing argument to %s", argp[-2]);
573 add_profile_entry ("credentials", cp);
574 continue;
575 }
576
577 case MESSAGEIDSW:
578 if (!(cp = *argp++) || *cp == '-')
579 adios (NULL, "missing argument to %s", argp[-2]);
580 if (save_message_id_style (cp) != 0)
581 adios (NULL, "unsupported messageid \"%s\"", cp);
582 continue;
583 }
584 }
585 if (msg)
586 adios (NULL, "only one message at a time!");
587 else
588 msg = cp;
589 }
590
591 alias (AliasFile);
592
593 if (!msg)
594 adios (NULL, "usage: %s [switches] file", invo_name);
595
596 if (outputlinelen < 10)
597 adios (NULL, "impossible width %d", outputlinelen);
598
599 if ((in = fopen (msg, "r")) == NULL)
600 adios (msg, "unable to open");
601
602 start_headers ();
603 if (debug) {
604 verbose++;
605 out = stdout;
606 } else {
607 if (whomsw) {
608 if ((out = fopen ("/dev/null", "w")) == NULL)
609 adios ("/dev/null", "unable to open");
610 } else {
611 char *cp = m_mktemp2(NULL, invo_name, NULL, &out);
612 if (cp == NULL) {
613 adios(NULL, "unable to create temporary file in %s",
614 get_temp_dir());
615 }
616 strncpy(tmpfil, cp, sizeof(tmpfil));
617 }
618 }
619
620 hdrtab = msgstate == NORMAL ? NHeaders : RHeaders;
621
622 for (compnum = 1;;) {
623 int bufsz = sizeof buf;
624 switch (state = m_getfld (&gstate, name, buf, &bufsz, in)) {
625 case FLD:
626 case FLDPLUS:
627 compnum++;
628 cp = mh_xstrdup(buf);
629 while (state == FLDPLUS) {
630 bufsz = sizeof buf;
631 state = m_getfld (&gstate, name, buf, &bufsz, in);
632 cp = add (buf, cp);
633 }
634 putfmt (name, cp, &eai, out);
635 free (cp);
636 continue;
637
638 case BODY:
639 finish_headers (out);
640 if (whomsw)
641 break;
642 fprintf (out, "\n%s", buf);
643 while (state == BODY) {
644 bufsz = sizeof buf;
645 state = m_getfld (&gstate, name, buf, &bufsz, in);
646 fputs (buf, out);
647 }
648 break;
649
650 case FILEEOF:
651 finish_headers (out);
652 break;
653
654 case LENERR:
655 case FMTERR:
656 adios (NULL, "message format error in component #%d", compnum);
657
658 default:
659 adios (NULL, "getfld() returned %d", state);
660 }
661 break;
662 }
663 m_getfld_state_destroy (&gstate);
664
665 if (pfd != NOTOK)
666 anno ();
667 fclose (in);
668
669 if (debug) {
670 pl ();
671 done (0);
672 } else {
673 fclose (out);
674 }
675
676 /*
677 * Here's how we decide which address to use as the envelope-from
678 * address for SMTP.
679 *
680 * - If we were given an Envelope-From header, use that.
681 * - If we were given a Sender: address, use that.
682 * - Otherwise, use the address on the From: line
683 */
684
685 if (msgflags & MEFM) {
686 envelope = efrom;
687 } else if (seensender) {
688 envelope = sender;
689 } else {
690 envelope = from;
691 }
692
693 if (tls == -1) {
694 #ifdef TLS_SUPPORT
695 /*
696 * The user didn't specify any of the tls switches. Try to
697 * help them by implying -initialtls if they're using port 465
698 * (smtps, until IANA revoked that registration in 1998).
699 */
700 tls = ! strcmp (port, "465") || ! strcasecmp (port, "smtps")
701 ? 2
702 : 0;
703 #else /* ! TLS_SUPPORT */
704 tls = 0;
705 #endif /* ! TLS_SUPPORT */
706 }
707
708 if (tls == 1)
709 tlsflag = S_STARTTLS;
710 else if (tls == 2)
711 tlsflag = S_INITTLS;
712 else
713 tlsflag = 0;
714
715 if (noverify)
716 tlsflag |= S_NOVERIFY;
717
718 /*
719 * If we were given any oauth flags, store the appropriate profile
720 * entries and make sure an authservice was given (we have to do this
721 * here because we aren't guaranteed the authservice will be given on
722 * the command line before the other OAuth flags are given).
723 */
724
725 if (oauth_flag) {
726 int i;
727 char sbuf[128];
728
729 if (auth_svc == NULL) {
730 adios(NULL, "No authentication service given with -authservice");
731 }
732
733 for (i = 0; oauthswitches[i].profname != NULL; i++) {
734 if (oauthswitches[i].value != NULL) {
735 snprintf(sbuf, sizeof(sbuf),
736 oauthswitches[i].profname, auth_svc);
737 sbuf[sizeof(sbuf) - 1] = '\0';
738 add_profile_entry(sbuf, oauthswitches[i].value);
739 }
740 }
741 }
742
743 /* If we are doing a "whom" check */
744 if (whomsw) {
745 /* This won't work with MTS_SENDMAIL_PIPE. */
746 verify_all_addresses (1, eai, envelope, oauth_flag, auth_svc);
747 done (0);
748 }
749
750 if (msgflags & MINV) {
751 make_bcc_file (dashstuff);
752 if (msgflags & MVIS) {
753 if (sm_mts != MTS_SENDMAIL_PIPE) {
754 /* It would be nice to have support to call
755 verify_all_addresses with MTS_SENDMAIL_PIPE, but
756 that might require running sendmail as root. Note
757 that spost didn't verify addresses. */
758 verify_all_addresses (verbose, eai, envelope, oauth_flag,
759 auth_svc);
760 }
761 post (tmpfil, 0, verbose, eai, envelope, oauth_flag, auth_svc);
762 }
763 post (bccfil, 1, verbose, eai, envelope, oauth_flag, auth_svc);
764 (void) m_unlink (bccfil);
765 } else {
766 post (tmpfil, 0, isatty (1), eai, envelope, oauth_flag, auth_svc);
767 }
768
769 p_refile (tmpfil);
770 (void) m_unlink (tmpfil);
771
772 if (verbose) {
773 if (partno)
774 printf ("Partial Message #%s Processed\n", partno);
775 else
776 puts("Message Processed");
777 }
778
779 done (0);
780 return 1;
781 }
782
783
784 /*
785 * DRAFT GENERATION
786 */
787
788 static void
789 putfmt (char *name, char *str, int *eai, FILE *out)
790 {
791 int count, grp, i, keep;
792 char *cp, *pp, *qp;
793 char namep[BUFSIZ], error[BUFSIZ];
794 char *savehdr = NULL;
795 unsigned int savehdrlen = 0;
796 struct mailname *mp = NULL, *np = NULL;
797 struct headers *hdr;
798
799 while (*str == ' ' || *str == '\t')
800 str++;
801
802 if (msgstate == NORMAL && uprf (name, "resent")) {
803 inform("illegal header line -- %s:", name);
804 badmsg++;
805 return;
806 }
807
808 if (! *eai) {
809 /* Check each header field value to see if it has any 8-bit characters.
810 If it does, enable EAI support. */
811 if (contains8bit(str, NULL)) {
812 if (verbose) {
813 puts("EAI/SMTPUTF8 enabled");
814 }
815
816 /* Enable SMTPUTF8. */
817 *eai = 1;
818
819 /* Enable passing of utf-8 setting to getname()/getadrx(). */
820 enable_eai();
821 }
822 }
823
824 if ((i = get_header (name, hdrtab)) == NOTOK) {
825 if (strncasecmp (name, "nmh-", 4)) {
826 fprintf (out, "%s: %s", name, str);
827 } else {
828 /* Filter out all Nmh-* headers, because Norm asked. They
829 should never have reached this point. Warn about any
830 that are non-empty. */
831 if (strcmp (str, "\n")) {
832 trim_suffix_c(str, '\n');
833 if (! whomsw) {
834 inform("ignoring header line -- %s: %s", name, str);
835 }
836 }
837 }
838
839 return;
840 }
841
842 hdr = &hdrtab[i];
843 if (hdr->flags & HIGN) {
844 return;
845 }
846 if (hdr->flags & HBAD) {
847 inform("illegal header line -- %s:", name);
848 badmsg++;
849 return;
850 }
851 msgflags |= (hdr->set & ~(MVIS | MINV));
852
853 if (hdr->flags & HSUB)
854 subject = subject ? add (str, add ("\t", subject)) : mh_xstrdup(str);
855 if (hdr->flags & HFCC) {
856 if ((cp = strrchr(str, '\n')))
857 *cp = 0;
858 for (pp = str; (cp = strchr(pp, ',')); pp = cp) {
859 *cp++ = 0;
860 insert_fcc (hdr, pp);
861 }
862 insert_fcc (hdr, pp);
863 return;
864 }
865 if (hdr->flags & HCTE) {
866 if (strncasecmp (str, "7bit", 4) == 0) {
867 cte = SEVENBIT;
868 } else if (strncasecmp (str, "8bit", 4) == 0) {
869 cte = EIGHTBIT;
870 } else if (strncasecmp (str, "binary", 6) == 0) {
871 cte = BINARY;
872 }
873 }
874 if (!(hdr->flags & HADR)) {
875 fprintf (out, "%s: %s", name, str);
876 return;
877 }
878
879 /*
880 * If this is a From:/Resent-From: header, save the full thing for
881 * later in case we need it for use when constructing a Bcc draft message.
882 * Because we want to capture the results of alias expansion, save
883 * the output from putadr().
884 */
885
886 if ((msgstate == RESENT) ? (hdr->set & MRFM) : (hdr->set & MFRM)) {
887 savehdr = fullfrom;
888 savehdr[0] = '\0';
889 savehdrlen = sizeof(fullfrom);
890 }
891
892 tmpaddrs.m_next = NULL;
893
894 for (count = 0; (cp = getname (str)); count++) {
895 if ((mp = getm (cp, NULL, 0, error, sizeof(error)))) {
896 if (tmpaddrs.m_next)
897 np->m_next = mp;
898 else
899 tmpaddrs.m_next = mp;
900 np = mp;
901 }
902 else {
903 admonish(cp, "%s", error);
904 if (hdr->flags & HTRY)
905 badadr++;
906 else
907 badmsg++;
908 }
909 }
910
911 if (count < 1) {
912 if (hdr->flags & HNIL)
913 fprintf (out, "%s: %s", name, str);
914 else {
915 /*
916 * Sender (or Resent-Sender) can have only one address
917 */
918 if ((msgstate == RESENT) ? (hdr->set & MRSN)
919 : (hdr->set & MSND)) {
920 inform("%s: field requires one address", name);
921 badmsg++;
922 }
923 #ifdef notdef
924 inform("%s: field requires at least one address", name);
925 badmsg++;
926 #endif /* notdef */
927 }
928 return;
929 }
930
931 if (count > 1 && (hdr->flags & HONE)) {
932 inform("%s: field only permits one address", name);
933 badmsg++;
934 return;
935 }
936
937 nameoutput = linepos = 0;
938 snprintf (namep, sizeof(namep), "%s%s",
939 (hdr->flags & HMNG) ? "Original-" : "", name);
940
941 for (grp = 0, mp = tmpaddrs.m_next; mp; mp = np)
942 if (mp->m_nohost) { /* also used to test (hdr->flags & HTRY) */
943 /* The address doesn't include a host, so it might be an alias. */
944 pp = akvalue (mp->m_mbox); /* do mh alias substitution */
945 qp = akvisible () ? mp->m_mbox : "";
946 np = mp;
947 if (np->m_gname)
948 putgrp (namep, np->m_gname, out, hdr->flags);
949 while ((cp = getname (pp))) {
950 if (!(mp = getm (cp, NULL, 0, error, sizeof(error)))) {
951 admonish(cp, "%s", error);
952 badadr++;
953 continue;
954 }
955
956 /*
957 * If it's a From: or Resent-From: header, save the address
958 * for later possible use (as the envelope address for SMTP)
959 */
960
961 if ((msgstate == RESENT) ? (hdr->set & MRFM)
962 : (hdr->set & MFRM)) {
963 strncpy(from, auxformat(mp, 0), sizeof(from) - 1);
964 from[sizeof(from) - 1] = '\0';
965 fromcount = count;
966 }
967
968 /*
969 * Also save the Sender: or Resent-Sender: header as well
970 */
971
972 if ((msgstate == RESENT) ? (hdr->set & MRSN)
973 : (hdr->set & MSND)) {
974 strncpy(sender, auxformat(mp, 0), sizeof(sender) - 1);
975 sender[sizeof(sender) - 1] = '\0';
976 seensender++;
977 }
978
979 /*
980 * ALSO ... save Envelope-From
981 */
982
983 if (hdr->set & MEFM) {
984 strncpy(efrom, auxformat(mp, 0), sizeof(efrom) - 1);
985 efrom[sizeof(efrom) - 1] = '\0';
986 }
987
988 if (hdr->flags & HBCC)
989 mp->m_bcc++;
990 if (np->m_ingrp)
991 mp->m_ingrp = np->m_ingrp;
992 else
993 if (mp->m_gname)
994 putgrp (namep, mp->m_gname, out, hdr->flags);
995 if (mp->m_ingrp) {
996 if (sm_mts == MTS_SENDMAIL_PIPE) {
997 /* Catch this before sendmail chokes with:
998 "553 List:; syntax illegal for recipient
999 addresses".
1000 If we wanted to, we could expand out blind
1001 aliases and put them in Bcc:, but then
1002 they'd have the Blind-Carbon-Copy
1003 indication. */
1004 adios (NULL,
1005 "blind lists not compatible with"
1006 " sendmail/pipe");
1007 }
1008
1009 grp++;
1010 }
1011 if (putadr (namep, qp, mp, out, hdr->flags, savehdr,
1012 savehdrlen))
1013 msgflags |= (hdr->set & (MVIS | MINV));
1014 else
1015 mnfree (mp);
1016 }
1017 mp = np;
1018 np = np->m_next;
1019 mnfree (mp);
1020 }
1021 else {
1022 /* Address includes a host, so no alias substitution is needed. */
1023
1024 /*
1025 * If it's a From: or Resent-From header, save the address
1026 * for later possible use (as the envelope address for SMTP)
1027 */
1028
1029 if ((msgstate == RESENT) ? (hdr->set & MRFM)
1030 : (hdr->set & MFRM)) {
1031 strncpy(from, auxformat(mp, 0), sizeof(from) - 1);
1032 fromcount = count;
1033 }
1034
1035 /*
1036 * Also save the Sender: header as well
1037 */
1038
1039 if ((msgstate == RESENT) ? (hdr->set & MRSN)
1040 : (hdr->set & MSND)) {
1041 strncpy(sender, auxformat(mp, 0), sizeof(sender) - 1);
1042 sender[sizeof(sender) - 1] = '\0';
1043 seensender++;
1044 }
1045
1046 /*
1047 * ALSO ... save Envelope-From
1048 */
1049
1050 if (hdr->set & MEFM) {
1051 strncpy(efrom, auxformat(mp, 0), sizeof(efrom) - 1);
1052 efrom[sizeof(efrom) - 1] = '\0';
1053 }
1054
1055 if (hdr->flags & HBCC)
1056 mp->m_bcc++;
1057 if (mp->m_gname)
1058 putgrp (namep, mp->m_gname, out, hdr->flags);
1059 if (mp->m_ingrp)
1060 grp++;
1061 keep = putadr (namep, "", mp, out, hdr->flags, savehdr, savehdrlen);
1062 np = mp->m_next;
1063 if (keep) {
1064 mp->m_next = NULL;
1065 msgflags |= (hdr->set & (MVIS | MINV));
1066 }
1067 else
1068 mnfree (mp);
1069 }
1070
1071 /*
1072 * If it was a From header, strip off any trailing newlines from
1073 * the alias-expanded From line.
1074 */
1075
1076 if ((msgstate == RESENT) ? (hdr->set & MRFM) : (hdr->set & MFRM)) {
1077 while (*fullfrom && fullfrom[strlen(fullfrom) - 1] == '\n') {
1078 fullfrom[strlen(fullfrom) - 1] = '\0';
1079 }
1080 }
1081
1082 if (grp > 0 && (hdr->flags & HNGR)) {
1083 inform("%s: field does not allow groups", name);
1084 badmsg++;
1085 }
1086 if (linepos) {
1087 putc ('\n', out);
1088 }
1089 }
1090
1091
1092 static void
1093 start_headers (void)
1094 {
1095 time (&tclock);
1096
1097 /*
1098 * Probably not necessary, but just in case ...
1099 */
1100
1101 from[0] = '\0';
1102 efrom[0] = '\0';
1103 sender[0] = '\0';
1104 fullfrom[0] = '\0';
1105 }
1106
1107
1108 /*
1109 * Now that we've outputted the header fields in the draft
1110 * message, we will now output any remaining header fields
1111 * that we need to add/create.
1112 */
1113
1114 static void
1115 finish_headers (FILE *out)
1116 {
1117 switch (msgstate) {
1118 case NORMAL:
1119 if (!(msgflags & MFRM)) {
1120 /*
1121 * A From: header is now required in the draft.
1122 */
1123 inform("message has no From: header");
1124 inform("See default components files for examples");
1125 badmsg++;
1126 break;
1127 }
1128
1129 if (fromcount > 1 && (seensender == 0 && !(msgflags & MEFM))) {
1130 inform("A Sender: or Envelope-From: header is required "
1131 "with multiple\nFrom: addresses");
1132 badmsg++;
1133 break;
1134 }
1135
1136 if (whomsw)
1137 break;
1138
1139 fprintf (out, "Date: %s\n", dtime (&tclock, 0));
1140 if (msgid)
1141 fprintf (out, "Message-ID: %s\n", message_id (tclock, 0));
1142 /*
1143 * If we have multiple From: addresses, make sure we have an
1144 * Sender: header. If we don't have one, then generate one
1145 * from Envelope-From: (which in this case, cannot be blank)
1146 */
1147
1148 if (fromcount > 1 && seensender == 0) {
1149 if (efrom[0] == '\0') {
1150 inform("Envelope-From cannot be blank when there "
1151 "is multiple From: addresses\nand no Sender: "
1152 "header");
1153 badmsg++;
1154 } else {
1155 fprintf (out, "Sender: %s\n", efrom);
1156 }
1157 }
1158
1159 if (!(msgflags & MVIS))
1160 fprintf (out, "Bcc: Blind Distribution List: ;\n");
1161 break;
1162
1163 case RESENT:
1164 if (!(msgflags & MDAT)) {
1165 inform("message has no Date: header");
1166 badmsg++;
1167 }
1168 if (!(msgflags & MFRM)) {
1169 inform("message has no From: header");
1170 badmsg++;
1171 }
1172 if (!(msgflags & MRFM)) {
1173 inform("message has no Resent-From: header");
1174 inform("See default components files for examples");
1175 badmsg++;
1176 break;
1177 }
1178 if (fromcount > 1 && (seensender == 0 && !(msgflags & MEFM))) {
1179 inform("A Resent-Sender: or Envelope-From: header is "
1180 "required with multiple\nResent-From: addresses");
1181 badmsg++;
1182 break;
1183 }
1184
1185 if (whomsw)
1186 break;
1187
1188 fprintf (out, "Resent-Date: %s\n", dtime (&tclock, 0));
1189 if (msgid)
1190 fprintf (out, "Resent-Message-ID: %s\n",
1191 message_id (tclock, 0));
1192 /*
1193 * If we have multiple Resent-From: addresses, make sure we have an
1194 * Resent-Sender: header. If we don't have one, then generate one
1195 * from Envelope-From (which in this case, cannot be blank)
1196 */
1197
1198 if (fromcount > 1 && seensender == 0) {
1199 if (efrom[0] == '\0') {
1200 inform("Envelope-From cannot be blank when there "
1201 "is multiple Resent-From: addresses and no "
1202 "Resent-Sender: header");
1203 badmsg++;
1204 } else {
1205 fprintf (out, "Resent-Sender: %s\n", efrom);
1206 }
1207 }
1208
1209 if (!(msgflags & MVIS))
1210 fprintf (out, "Resent-Bcc: Blind Re-Distribution List: ;\n");
1211 break;
1212 }
1213
1214 if (badmsg)
1215 adios (NULL, "re-format message and try again");
1216 if (!recipients)
1217 adios (NULL, "no addressees");
1218 }
1219
1220
1221 static int
1222 get_header (char *header, struct headers *table)
1223 {
1224 struct headers *h;
1225
1226 for (h = table; h->value; h++)
1227 if (!strcasecmp (FENDNULL(header), FENDNULL(h->value)))
1228 return (h - table);
1229
1230 return NOTOK;
1231 }
1232
1233
1234 static int
1235 putadr (char *name, char *aka, struct mailname *mp, FILE *out,
1236 unsigned int flags, char *savehdr, unsigned int savehdrsize)
1237 {
1238 int len, saveappend = 0;
1239 unsigned int shlen;
1240 char *cp;
1241 char buffer[BUFSIZ];
1242
1243 if (mp->m_mbox == NULL || ((flags & HTRY) && !insert (mp)))
1244 return 0;
1245 if (sm_mts != MTS_SENDMAIL_PIPE &&
1246 ((flags & (HBCC | HDCC | HEFM)) || mp->m_ingrp))
1247 return 1;
1248
1249 if (!nameoutput) {
1250 fprintf (out, "%s: ", name);
1251 linepos += (nameoutput = strlen (name) + 2);
1252 }
1253
1254 if (savehdr) {
1255 shlen = strlen(savehdr);
1256 saveappend = 1;
1257 }
1258
1259 if (*aka && mp->m_type != UUCPHOST && !mp->m_pers)
1260 mp->m_pers = mh_xstrdup(aka);
1261 if (format) {
1262 if (mp->m_gname) {
1263 snprintf (buffer, sizeof(buffer), "%s;", mp->m_gname);
1264 cp = buffer;
1265 } else {
1266 cp = adrformat (mp);
1267 }
1268 } else {
1269 cp = mp->m_text;
1270 }
1271 len = strlen (cp);
1272
1273 if (linepos != nameoutput) {
1274 if (len + linepos + 2 > outputlinelen) {
1275 fprintf (out, ",\n%*s", linepos = nameoutput, "");
1276 if (saveappend) {
1277 if (shlen + 2 + nameoutput + len >= savehdrsize) {
1278 saveappend = 0;
1279 } else {
1280 snprintf(savehdr + shlen, savehdrsize - shlen, ",\n%*s",
1281 linepos, "");
1282 }
1283 }
1284 } else {
1285 fputs (", ", out);
1286 linepos += 2;
1287 if (saveappend) {
1288 if (shlen + 2 + len >= savehdrsize) {
1289 saveappend = 0;
1290 } else {
1291 strncat(savehdr, ", ", savehdrsize - shlen);
1292 }
1293 }
1294 }
1295 }
1296
1297 fputs (cp, out);
1298
1299 if (saveappend && shlen + len < savehdrsize)
1300 strncat(savehdr, cp, savehdrsize - shlen + len);
1301
1302 linepos += len;
1303
1304 return (flags & HTRY);
1305 }
1306
1307
1308 static void
1309 putgrp (char *name, char *group, FILE *out, unsigned int flags)
1310 {
1311 int len;
1312 char *cp;
1313
1314 if (sm_mts != MTS_SENDMAIL_PIPE && (flags & HBCC))
1315 return;
1316
1317 if (!nameoutput) {
1318 fprintf (out, "%s: ", name);
1319 linepos += (nameoutput = strlen (name) + 2);
1320 }
1321
1322 cp = concat (group, ";", NULL);
1323 len = strlen (cp);
1324
1325 if (linepos > nameoutput) {
1326 if (len + linepos + 2 > outputlinelen) {
1327 fprintf (out, ",\n%*s", nameoutput, "");
1328 linepos = nameoutput;
1329 }
1330 else {
1331 fputs (", ", out);
1332 linepos += 2;
1333 }
1334 }
1335
1336 fputs (cp, out);
1337 linepos += len;
1338 }
1339
1340
1341 static int
1342 insert (struct mailname *np)
1343 {
1344 struct mailname *mp;
1345
1346 if (np->m_mbox == NULL)
1347 return 0;
1348
1349 for (mp = np->m_type == LOCALHOST ? &localaddrs
1350 : np->m_type == UUCPHOST ? &uuaddrs
1351 : &netaddrs;
1352 mp->m_next;
1353 mp = mp->m_next)
1354 if (!strcasecmp (FENDNULL(np->m_host),
1355 FENDNULL(mp->m_next->m_host)) &&
1356 !strcasecmp (FENDNULL(np->m_mbox),
1357 FENDNULL(mp->m_next->m_mbox)) &&
1358 np->m_bcc == mp->m_next->m_bcc)
1359 return 0;
1360
1361 mp->m_next = np;
1362 recipients++;
1363 return 1;
1364 }
1365
1366
1367 static void
1368 pl (void)
1369 {
1370 int i;
1371 struct mailname *mp;
1372
1373 printf ("-------\n\t-- Addresses --\nlocal:\t");
1374 for (mp = localaddrs.m_next; mp; mp = mp->m_next)
1375 printf ("%s%s%s", mp->m_mbox,
1376 mp->m_bcc ? "[BCC]" : "",
1377 mp->m_next ? ",\n\t" : "");
1378
1379 printf ("\nnet:\t");
1380 for (mp = netaddrs.m_next; mp; mp = mp->m_next)
1381 printf ("%s%s@%s%s%s", FENDNULL(mp->m_path),
1382 mp->m_mbox, mp->m_host,
1383 mp->m_bcc ? "[BCC]" : "",
1384 mp->m_next ? ",\n\t" : "");
1385
1386 printf ("\nuucp:\t");
1387 for (mp = uuaddrs.m_next; mp; mp = mp->m_next)
1388 printf ("%s!%s%s%s", mp->m_host, mp->m_mbox,
1389 mp->m_bcc ? "[BCC]" : "",
1390 mp->m_next ? ",\n\t" : "");
1391
1392 printf ("\n\t-- Folder Copies --\nfcc:\t");
1393 for (i = 0; i < fccind; i++)
1394 printf ("%s%s", fccfold[i], i + 1 < fccind ? ",\n\t" : "");
1395 putchar('\n');
1396 }
1397
1398
1399 static void
1400 anno (void)
1401 {
1402 struct mailname *mp;
1403
1404 for (mp = localaddrs.m_next; mp; mp = mp->m_next)
1405 if (annoaux (mp) == NOTOK)
1406 goto oops;
1407
1408 for (mp = netaddrs.m_next; mp; mp = mp->m_next)
1409 if (annoaux (mp) == NOTOK)
1410 goto oops;
1411
1412 for (mp = uuaddrs.m_next; mp; mp = mp->m_next)
1413 if (annoaux (mp) == NOTOK)
1414 break;
1415
1416 oops: ;
1417 close (pfd);
1418 pfd = NOTOK;
1419 }
1420
1421
1422 static int
1423 annoaux (struct mailname *mp)
1424 {
1425 int i;
1426 char buffer[BUFSIZ];
1427
1428 snprintf (buffer, sizeof(buffer), "%s\n", adrformat (mp));
1429 i = strlen (buffer);
1430
1431 return (write (pfd, buffer, i) == i ? OK : NOTOK);
1432 }
1433
1434
1435 static void
1436 insert_fcc (struct headers *hdr, char *pp)
1437 {
1438 char *cp;
1439
1440 for (cp = pp; isspace ((unsigned char) *cp); cp++)
1441 continue;
1442 for (pp += strlen (pp) - 1; pp > cp && isspace ((unsigned char) *pp); pp--)
1443 continue;
1444 if (pp >= cp)
1445 *++pp = 0;
1446 if (*cp == 0)
1447 return;
1448
1449 if (fccind >= FCCS)
1450 adios (NULL, "too many %ss", hdr->value);
1451 fccfold[fccind++] = mh_xstrdup(cp);
1452 }
1453
1454 /*
1455 * BCC GENERATION
1456 */
1457
1458 static void
1459 make_bcc_file (int dashstuff)
1460 {
1461 int fd, i;
1462 pid_t child_id;
1463 char **vec;
1464 FILE *out;
1465 char *tfile = NULL, *program;
1466
1467 if ((tfile = m_mktemp2(NULL, "bccs", NULL, &out)) == NULL) {
1468 adios(NULL, "unable to create temporary file in %s", get_temp_dir());
1469 }
1470 strncpy (bccfil, tfile, sizeof(bccfil));
1471
1472 fprintf (out, "From: %s\n", fullfrom);
1473 fprintf (out, "Date: %s\n", dtime (&tclock, 0));
1474 if (msgid)
1475 fprintf (out, "Message-ID: %s\n", message_id (tclock, 0));
1476 if (subject)
1477 fprintf (out, "Subject: %s", subject);
1478 fprintf (out, "BCC:\n");
1479
1480 /*
1481 * Use MIME encapsulation for Bcc messages
1482 */
1483 if (mime) {
1484 char *cp;
1485
1486 /*
1487 * Check if any lines in the message clash with the
1488 * prefix for the MIME multipart separator. If there
1489 * is a clash, increment one of the letters in the
1490 * prefix and check again.
1491 */
1492 if ((cp = strchr(prefix, 'a')) == NULL)
1493 adios (NULL, "lost prefix start");
1494 while (find_prefix () == NOTOK) {
1495 if (*cp < 'z')
1496 (*cp)++;
1497 else
1498 if (*++cp == 0)
1499 adios (NULL, "can't find a unique delimiter string");
1500 else
1501 (*cp)++;
1502 }
1503
1504 fprintf (out, "%s: %s\n%s: multipart/digest; boundary=\"",
1505 VRSN_FIELD, VRSN_VALUE, TYPE_FIELD);
1506 fprintf (out, "%s\"\n\n--%s\n\n", prefix, prefix);
1507 } else {
1508 fprintf (out, "\n------- Blind-Carbon-Copy\n\n");
1509 }
1510
1511 fflush (out);
1512
1513 /*
1514 * Do mhl filtering of Bcc messages instead
1515 * of MIME encapsulation.
1516 */
1517 if (filter != NULL) {
1518 for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
1519 sleep (5);
1520 switch (child_id) {
1521 case NOTOK:
1522 adios ("fork", "unable to");
1523
1524 case OK:
1525 dup2 (fileno (out), 1);
1526
1527 vec = argsplit(mhlproc, &program, &i);
1528 vec[i++] = "-forward";
1529 vec[i++] = "-form";
1530 vec[i++] = filter;
1531 vec[i++] = tmpfil;
1532
1533 /* was the flag -[no]dashstuffing specified? */
1534 if (dashstuff > 0)
1535 vec[i++] = "-dashstuffing";
1536 else if (dashstuff < 0)
1537 vec[i++] = "-nodashstuffing";
1538 vec[i] = NULL;
1539
1540 execvp (program, vec);
1541 fprintf (stderr, "unable to exec ");
1542 perror (mhlproc);
1543 _exit (-1);
1544
1545 default:
1546 pidXwait (child_id, mhlproc);
1547 break;
1548 }
1549 } else {
1550 if ((fd = open (tmpfil, O_RDONLY)) == NOTOK)
1551 adios (tmpfil, "unable to re-open");
1552
1553 /*
1554 * If using MIME encapsulation, or if the -nodashstuffing
1555 * flag was given, then just copy message. Else do
1556 * RFC934 quoting (dashstuffing).
1557 */
1558 if (mime || dashstuff < 0)
1559 cpydata (fd, fileno (out), tmpfil, bccfil);
1560 else
1561 cpydgst (fd, fileno (out), tmpfil, bccfil);
1562 close (fd);
1563 }
1564
1565 fseek (out, 0L, SEEK_END);
1566 if (mime)
1567 fprintf (out, "\n--%s--\n", prefix);
1568 else
1569 fprintf (out, "\n------- End of Blind-Carbon-Copy\n");
1570 fclose (out);
1571 }
1572
1573
1574 /*
1575 * Scan message to check if any lines clash with
1576 * the prefix of the MIME multipart separator.
1577 */
1578
1579 static int
1580 find_prefix (void)
1581 {
1582 int result = OK;
1583 char buffer[BUFSIZ];
1584 FILE *in;
1585
1586 if ((in = fopen (tmpfil, "r")) == NULL)
1587 adios (tmpfil, "unable to re-open");
1588
1589 while (fgets (buffer, sizeof buffer, in))
1590 if (buffer[0] == '-' && buffer[1] == '-') {
1591 char *cp;
1592
1593 for (cp = buffer + strlen (buffer) - 1; cp >= buffer; cp--)
1594 if (!isspace ((unsigned char) *cp))
1595 break;
1596 *++cp = '\0';
1597 if (strcmp (buffer + 2, prefix) == 0) {
1598 result = NOTOK;
1599 break;
1600 }
1601 }
1602
1603 fclose (in);
1604 return result;
1605 }
1606
1607
1608 static void
1609 chkadr (void)
1610 {
1611 if (badadr && unkadr)
1612 die (NULL, "%d address%s unparsable, %d addressee%s undeliverable",
1613 badadr, PLURALS(badadr), unkadr, PLURALS(badadr));
1614 if (badadr)
1615 die (NULL, "%d address%s unparsable", badadr, PLURALS(badadr));
1616 if (unkadr)
1617 die (NULL, "%d addressee%s undeliverable", unkadr, PLURALS(unkadr));
1618 }
1619
1620
1621 static void
1622 do_addresses (int bccque, int talk)
1623 {
1624 int retval;
1625 int state;
1626 struct mailname *lp;
1627
1628 state = 0;
1629 for (lp = localaddrs.m_next; lp; lp = lp->m_next)
1630 if (lp->m_bcc ? bccque : !bccque) {
1631 if (talk && !state)
1632 puts(" -- Local Recipients --");
1633 do_an_address (lp, talk);
1634 state++;
1635 }
1636
1637 state = 0;
1638 for (lp = uuaddrs.m_next; lp; lp = lp->m_next)
1639 if (lp->m_bcc ? bccque : !bccque) {
1640 if (talk && !state)
1641 puts(" -- UUCP Recipients --");
1642 do_an_address (lp, talk);
1643 state++;
1644 }
1645
1646 state = 0;
1647 for (lp = netaddrs.m_next; lp; lp = lp->m_next)
1648 if (lp->m_bcc ? bccque : !bccque) {
1649 if (talk && !state)
1650 puts(" -- Network Recipients --");
1651 do_an_address (lp, talk);
1652 state++;
1653 }
1654
1655 chkadr ();
1656
1657 if (rp_isbad (retval = sm_waend ()))
1658 die (NULL, "problem ending addresses; %s", rp_string (retval));
1659 }
1660
1661
1662 /*
1663 * MTS-SPECIFIC INTERACTION
1664 */
1665
1666
1667 /*
1668 * SENDMAIL/SMTP routines
1669 */
1670
1671 static void
1672 post (char *file, int bccque, int talk, int eai, char *envelope,
1673 int oauth_flag, char *auth_svc)
1674 {
1675 int retval, i;
1676 pid_t child_id;
1677
1678 if (verbose) {
1679 if (msgflags & MINV)
1680 printf (" -- Posting for %s Recipients --\n",
1681 bccque ? "Blind" : "Sighted");
1682 else
1683 puts(" -- Posting for All Recipients --");
1684 }
1685
1686 sigon ();
1687
1688 if (sm_mts == MTS_SENDMAIL_PIPE) {
1689 char **argp, *program;
1690 int argc;
1691
1692 for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
1693 sleep (5);
1694 switch (child_id) {
1695 case NOTOK:
1696 adios ("fork", "unable to");
1697
1698 case OK:
1699 if (freopen( file, "r", stdin) == NULL) {
1700 adios (file, "can't reopen for sendmail");
1701 }
1702
1703 argp = argsplit(sendmail, &program, &argc);
1704 argp[argc++] = "-t"; /* read msg for recipients */
1705 argp[argc++] = "-i"; /* don't stop on "." */
1706 if (whomsw)
1707 argp[argc++] = "-bv";
1708 if (snoop)
1709 argp[argc++] = "-v";
1710 argp[argc] = NULL;
1711
1712 execv (program, argp);
1713 adios (sendmail, "can't exec");
1714
1715 default:
1716 pidXwait (child_id, NULL);
1717 break;
1718 }
1719 } else {
1720 const int fd = open (file, O_RDONLY);
1721 int eightbit = 0;
1722
1723 if (fd == NOTOK) {
1724 die (file, "unable to re-open");
1725 }
1726
1727 if (msgflags & MMIM && cte != UNKNOWN) {
1728 /* MIME message with C-T-E header. (BINARYMIME isn't
1729 supported, use 8BITMIME instead for binary.) */
1730 eightbit = cte != SEVENBIT;
1731 } else {
1732 if (scan_input (fd, &eightbit) == NOTOK) {
1733 close (fd);
1734 die (file, "problem reading from");
1735 }
1736 }
1737
1738 if (rp_isbad (retval = sm_init (clientsw, serversw, port, watch,
1739 verbose, snoop, sasl, saslmech, user,
1740 oauth_flag ? auth_svc : NULL, tlsflag))
1741 || rp_isbad (retval = sm_winit (envelope, eai, eightbit))) {
1742 close (fd);
1743 die (NULL, "problem initializing server; %s", rp_string (retval));
1744 }
1745
1746 do_addresses (bccque, talk && verbose);
1747 do_text (file, fd);
1748 close (fd);
1749 fflush (stdout);
1750
1751 sm_end (!(msgflags & MINV) || bccque ? OK : DONE);
1752 sigoff ();
1753
1754 if (verbose) {
1755 if (msgflags & MINV)
1756 printf (" -- %s Recipient Copies Posted --\n",
1757 bccque ? "Blind" : "Sighted");
1758 else
1759 puts(" -- Recipient Copies Posted --");
1760 }
1761
1762 fflush (stdout);
1763 }
1764 }
1765
1766
1767 /* Address Verification */
1768
1769 static void
1770 verify_all_addresses (int talk, int eai, char *envelope, int oauth_flag,
1771 char *auth_svc)
1772 {
1773 int retval;
1774 struct mailname *lp;
1775
1776 sigon ();
1777
1778 if (!whomsw || checksw) {
1779 /* Not sending message body, so don't need to use 8BITMIME. */
1780 const int eightbit = 0;
1781
1782 if (rp_isbad (retval = sm_init (clientsw, serversw, port, watch,
1783 verbose, snoop, sasl, saslmech, user,
1784 oauth_flag ? auth_svc : NULL, tlsflag))
1785 || rp_isbad (retval = sm_winit (envelope, eai, eightbit))) {
1786 die (NULL, "problem initializing server; %s", rp_string (retval));
1787 }
1788 }
1789
1790 if (talk && !whomsw)
1791 puts(" -- Address Verification --");
1792 if (talk && localaddrs.m_next)
1793 puts(" -- Local Recipients --");
1794 for (lp = localaddrs.m_next; lp; lp = lp->m_next)
1795 do_an_address (lp, talk);
1796
1797 if (talk && uuaddrs.m_next)
1798 puts(" -- UUCP Recipients --");
1799 for (lp = uuaddrs.m_next; lp; lp = lp->m_next)
1800 do_an_address (lp, talk);
1801
1802 if (talk && netaddrs.m_next)
1803 puts(" -- Network Recipients --");
1804 for (lp = netaddrs.m_next; lp; lp = lp->m_next)
1805 do_an_address (lp, talk);
1806
1807 chkadr ();
1808 if (talk && !whomsw)
1809 puts(" -- Address Verification Successful --");
1810
1811 if (!whomsw || checksw)
1812 sm_end (DONE);
1813
1814 fflush (stdout);
1815 sigoff ();
1816 }
1817
1818
1819 static void
1820 do_an_address (struct mailname *lp, int talk)
1821 {
1822 int retval;
1823 char *mbox, *host;
1824 char addr[BUFSIZ];
1825
1826 switch (lp->m_type) {
1827 case LOCALHOST:
1828 mbox = lp->m_mbox;
1829 host = lp->m_host;
1830 strncpy (addr, mbox, sizeof(addr));
1831 break;
1832
1833 case UUCPHOST:
1834 mbox = auxformat (lp, 0);
1835 host = NULL;
1836 snprintf (addr, sizeof(addr), "%s!%s", lp->m_host, lp->m_mbox);
1837 break;
1838
1839 default: /* let SendMail decide if the host is bad */
1840 mbox = lp->m_mbox;
1841 host = lp->m_host;
1842 snprintf (addr, sizeof(addr), "%s at %s", mbox, host);
1843 break;
1844 }
1845
1846 if (talk)
1847 printf (" %s%s", addr, whomsw && lp->m_bcc ? "[BCC]" : "");
1848
1849 if (whomsw && !checksw) {
1850 putchar ('\n');
1851 return;
1852 }
1853 if (talk)
1854 printf (": ");
1855 fflush (stdout);
1856
1857 switch (retval = sm_wadr (mbox, host,
1858 lp->m_type != UUCPHOST ? lp->m_path : NULL)) {
1859 case RP_OK:
1860 if (talk)
1861 puts("address ok");
1862 break;
1863
1864 case RP_NO:
1865 case RP_USER:
1866 if (!talk)
1867 fprintf (stderr, " %s: ", addr);
1868 fprintf (talk ? stdout : stderr, "loses; %s\n",
1869 rp_string (retval));
1870 unkadr++;
1871 break;
1872
1873 default:
1874 if (!talk)
1875 fprintf (stderr, " %s: ", addr);
1876 die (NULL, "unexpected response; %s", rp_string (retval));
1877 }
1878
1879 fflush (stdout);
1880 }
1881
1882
1883 static void
1884 do_text (char *file, int fd)
1885 {
1886 int retval, state;
1887 char buf[BUFSIZ];
1888
1889 lseek(fd, 0, SEEK_SET);
1890
1891 while ((state = read (fd, buf, sizeof(buf))) > 0) {
1892 if (rp_isbad (retval = sm_wtxt (buf, state)))
1893 die (NULL, "problem writing text; %s\n", rp_string (retval));
1894 }
1895
1896 if (state == NOTOK)
1897 die (file, "problem reading from");
1898
1899 switch (retval = sm_wtend ()) {
1900 case RP_OK:
1901 break;
1902
1903 case RP_NO:
1904 case RP_NDEL:
1905 die (NULL, "posting failed; %s", rp_string (retval));
1906 break;
1907
1908 default:
1909 die (NULL, "unexpected response; %s", rp_string (retval));
1910 }
1911 }
1912
1913
1914 /*
1915 * SIGNAL HANDLING
1916 */
1917
1918 static void
1919 sigser (int i)
1920 {
1921 NMH_UNUSED (i);
1922
1923 (void) m_unlink (tmpfil);
1924 if (msgflags & MINV)
1925 (void) m_unlink (bccfil);
1926
1927 if (!whomsw || checksw)
1928 sm_end (NOTOK);
1929
1930 done (1);
1931 }
1932
1933
1934 static void
1935 sigon (void)
1936 {
1937 if (debug)
1938 return;
1939
1940 hstat = SIGNAL2 (SIGHUP, sigser);
1941 istat = SIGNAL2 (SIGINT, sigser);
1942 qstat = SIGNAL2 (SIGQUIT, sigser);
1943 tstat = SIGNAL2 (SIGTERM, sigser);
1944 }
1945
1946
1947 static void
1948 sigoff (void)
1949 {
1950 if (debug)
1951 return;
1952
1953 SIGNAL (SIGHUP, hstat);
1954 SIGNAL (SIGINT, istat);
1955 SIGNAL (SIGQUIT, qstat);
1956 SIGNAL (SIGTERM, tstat);
1957 }
1958
1959 /*
1960 * FCC INTERACTION
1961 */
1962
1963 static void
1964 p_refile (char *file)
1965 {
1966 int i;
1967
1968 if (fccind == 0)
1969 return;
1970
1971 if (verbose)
1972 puts(" -- Filing Folder Copies --");
1973 for (i = 0; i < fccind; i++)
1974 fcc (file, fccfold[i]);
1975 if (verbose)
1976 puts(" -- Folder Copies Filed --");
1977 }
1978
1979
1980 /*
1981 * Call the `fileproc' to add the file to the folder.
1982 */
1983
1984 static void
1985 fcc (char *file, char *folder)
1986 {
1987 pid_t child_id;
1988 int i, status, argp;
1989 char fold[BUFSIZ];
1990 char **arglist, *program;
1991
1992 if (verbose)
1993 printf (" %sFcc %s: ", msgstate == RESENT ? "Resent-" : "", folder);
1994 fflush (stdout);
1995
1996 for (i = 0; (child_id = fork ()) == NOTOK && i < 5; i++)
1997 sleep (5);
1998
1999 switch (child_id) {
2000 case NOTOK:
2001 if (!verbose)
2002 fprintf (stderr, " %sFcc %s: ",
2003 msgstate == RESENT ? "Resent-" : "", folder);
2004 fprintf (verbose ? stdout : stderr, "no forks, so not ok\n");
2005 break;
2006
2007 case OK:
2008 /* see if we need to add `+' */
2009 snprintf (fold, sizeof(fold), "%s%s",
2010 *folder == '+' || *folder == '@' ? "" : "+", folder);
2011
2012 /* now exec the fileproc */
2013
2014 arglist = argsplit(fileproc, &program, &argp);
2015 arglist[argp++] = "-link";
2016 arglist[argp++] = "-file";
2017 arglist[argp++] = file;
2018 arglist[argp++] = fold;
2019 arglist[argp] = NULL;
2020 execvp (program, arglist);
2021 _exit (-1);
2022
2023 default:
2024 if ((status = pidwait (child_id, OK))) {
2025 if (!verbose)
2026 fprintf (stderr, " %sFcc %s: ",
2027 msgstate == RESENT ? "Resent-" : "", folder);
2028 pidstatus (status, verbose ? stdout : stderr, fileproc);
2029 } else {
2030 if (verbose)
2031 puts("folder ok");
2032 }
2033 }
2034
2035 fflush (stdout);
2036 }
2037
2038 /*
2039 * TERMINATION
2040 */
2041
2042 static void
2043 die (char *what, char *fmt, ...)
2044 {
2045 int err;
2046 va_list ap;
2047
2048 err = errno;
2049
2050 (void) m_unlink (tmpfil);
2051 if (msgflags & MINV)
2052 (void) m_unlink (bccfil);
2053
2054 if (!whomsw || checksw)
2055 sm_end (NOTOK);
2056
2057 va_start(ap, fmt);
2058 errno = err;
2059 advertise (what, NULL, fmt, ap);
2060 va_end(ap);
2061 done (1);
2062 }
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