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Cope with sasl_decode64() returning SASL_CONTINUE as well as SASL_OK.
[nmh] / uip / mhlsbr.c
1
2 /*
3 * mhlsbr.c -- main routines for nmh message lister
4 *
5 * $Id$
6 *
7 * This code is Copyright (c) 2002, by the authors of nmh. See the
8 * COPYRIGHT file in the root directory of the nmh distribution for
9 * complete copyright information.
10 */
11
12 #include <h/mh.h>
13 #include <h/signals.h>
14 #include <h/addrsbr.h>
15 #include <h/fmt_scan.h>
16 #include <h/tws.h>
17 #include <h/utils.h>
18 #include <setjmp.h>
19 #include <signal.h>
20
21 /*
22 * MAJOR BUG:
23 * for a component containing addresses, ADDRFMT, if COMPRESS is also
24 * set, then addresses get split wrong (not at the spaces between commas).
25 * To fix this correctly, putstr() should know about "atomic" strings that
26 * must NOT be broken across lines. That's too difficult for right now
27 * (it turns out that there are a number of degernate cases), so in
28 * oneline(), instead of
29 *
30 * (*onelp == '\n' && !onelp[1])
31 *
32 * being a terminating condition,
33 *
34 * (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT)))
35 *
36 * is used instead. This cuts the line prematurely, and gives us a much
37 * better chance of getting things right.
38 */
39
40 #define ONECOMP 0
41 #define TWOCOMP 1
42 #define BODYCOMP 2
43
44 #define QUOTE '\\'
45
46 static struct swit mhlswitches[] = {
47 #define BELLSW 0
48 { "bell", 0 },
49 #define NBELLSW 1
50 { "nobell", 0 },
51 #define CLRSW 2
52 { "clear", 0 },
53 #define NCLRSW 3
54 { "noclear", 0 },
55 #define FACESW 4
56 { "faceproc program", 0 },
57 #define NFACESW 5
58 { "nofaceproc", 0 },
59 #define FOLDSW 6
60 { "folder +folder", 0 },
61 #define FORMSW 7
62 { "form formfile", 0 },
63 #define PROGSW 8
64 { "moreproc program", 0 },
65 #define NPROGSW 9
66 { "nomoreproc", 0 },
67 #define LENSW 10
68 { "length lines", 0 },
69 #define WIDTHSW 11
70 { "width columns", 0 },
71 #define SLEEPSW 12
72 { "sleep seconds", 0 },
73 #define BITSTUFFSW 13
74 { "dashstuffing", -12 }, /* interface from forw */
75 #define NBITSTUFFSW 14
76 { "nodashstuffing", -14 }, /* interface from forw */
77 #define VERSIONSW 15
78 { "version", 0 },
79 #define HELPSW 16
80 { "help", 0 },
81 #define FORW1SW 17
82 { "forward", -7 }, /* interface from forw */
83 #define FORW2SW 18
84 { "forwall", -7 }, /* interface from forw */
85 #define DGSTSW 19
86 { "digest list", -6 },
87 #define VOLUMSW 20
88 { "volume number", -6 },
89 #define ISSUESW 21
90 { "issue number", -5 },
91 #define NBODYSW 22
92 { "nobody", -6 },
93 { NULL, 0 }
94 };
95
96 #define NOCOMPONENT 0x000001 /* don't show component name */
97 #define UPPERCASE 0x000002 /* display in all upper case */
98 #define CENTER 0x000004 /* center line */
99 #define CLEARTEXT 0x000008 /* cleartext */
100 #define EXTRA 0x000010 /* an "extra" component */
101 #define HDROUTPUT 0x000020 /* already output */
102 #define CLEARSCR 0x000040 /* clear screen */
103 #define LEFTADJUST 0x000080 /* left justify multiple lines */
104 #define COMPRESS 0x000100 /* compress text */
105 #define ADDRFMT 0x000200 /* contains addresses */
106 #define BELL 0x000400 /* sound bell at EOP */
107 #define DATEFMT 0x000800 /* contains dates */
108 #define FORMAT 0x001000 /* parse address/date/RFC-2047 field */
109 #define INIT 0x002000 /* initialize component */
110 #define FACEFMT 0x004000 /* contains face */
111 #define FACEDFLT 0x008000 /* default for face */
112 #define SPLIT 0x010000 /* split headers (don't concatenate) */
113 #define NONEWLINE 0x020000 /* don't write trailing newline */
114 #define LBITS "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07CLEARSCR\010LEFTADJUST\011COMPRESS\012ADDRFMT\013BELL\014DATEFMT\015FORMAT\016INIT\017FACEFMT\020FACEDFLT\021SPLIT\022NONEWLINE"
115 #define GFLAGS (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT)
116
117 struct mcomp {
118 char *c_name; /* component name */
119 char *c_text; /* component text */
120 char *c_ovtxt; /* text overflow indicator */
121 char *c_nfs; /* iff FORMAT */
122 struct format *c_fmt; /* .. */
123 char *c_face; /* face designator */
124 int c_offset; /* left margin indentation */
125 int c_ovoff; /* overflow indentation */
126 int c_width; /* width of field */
127 int c_cwidth; /* width of component */
128 int c_length; /* length in lines */
129 long c_flags;
130 struct mcomp *c_next;
131 };
132
133 static struct mcomp *msghd = NULL;
134 static struct mcomp *msgtl = NULL;
135 static struct mcomp *fmthd = NULL;
136 static struct mcomp *fmttl = NULL;
137
138 static struct mcomp global = {
139 NULL, NULL, "", NULL, NULL, 0, -1, 80, -1, 40, BELL, 0
140 };
141
142 static struct mcomp holder = {
143 NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, NOCOMPONENT, 0
144 };
145
146 struct pair {
147 char *p_name;
148 long p_flags;
149 };
150
151 static struct pair pairs[] = {
152 { "Date", DATEFMT },
153 { "From", ADDRFMT|FACEDFLT },
154 { "Sender", ADDRFMT },
155 { "Reply-To", ADDRFMT },
156 { "To", ADDRFMT },
157 { "cc", ADDRFMT },
158 { "Bcc", ADDRFMT },
159 { "Resent-Date", DATEFMT },
160 { "Resent-From", ADDRFMT },
161 { "Resent-Sender", ADDRFMT },
162 { "Resent-Reply-To", ADDRFMT },
163 { "Resent-To", ADDRFMT },
164 { "Resent-cc", ADDRFMT },
165 { "Resent-Bcc", ADDRFMT },
166 { "Face", FACEFMT },
167 { NULL, 0 }
168 };
169
170 struct triple {
171 char *t_name;
172 long t_on;
173 long t_off;
174 };
175
176 static struct triple triples[] = {
177 { "nocomponent", NOCOMPONENT, 0 },
178 { "uppercase", UPPERCASE, 0 },
179 { "nouppercase", 0, UPPERCASE },
180 { "center", CENTER, 0 },
181 { "nocenter", 0, CENTER },
182 { "clearscreen", CLEARSCR, 0 },
183 { "noclearscreen", 0, CLEARSCR },
184 { "noclear", 0, CLEARSCR },
185 { "leftadjust", LEFTADJUST, 0 },
186 { "noleftadjust", 0, LEFTADJUST },
187 { "compress", COMPRESS, 0 },
188 { "nocompress", 0, COMPRESS },
189 { "split", SPLIT, 0 },
190 { "nosplit", 0, SPLIT },
191 { "addrfield", ADDRFMT, DATEFMT },
192 { "bell", BELL, 0 },
193 { "nobell", 0, BELL },
194 { "datefield", DATEFMT, ADDRFMT },
195 { "newline", 0, NONEWLINE },
196 { "nonewline", NONEWLINE, 0 },
197 { NULL, 0, 0 }
198 };
199
200
201 static int bellflg = 0;
202 static int clearflg = 0;
203 static int dashstuff = 0;
204 static int dobody = 1;
205 static int forwflg = 0;
206 static int forwall = 0;
207
208 static int sleepsw = NOTOK;
209
210 static char *digest = NULL;
211 static int volume = 0;
212 static int issue = 0;
213
214 static int exitstat = 0;
215 static int mhldebug = 0;
216
217 #define PITTY (-1)
218 #define NOTTY 0
219 #define ISTTY 1
220 static int ontty = NOTTY;
221
222 static int row;
223 static int column;
224
225 static int lm;
226 static int llim;
227 static int ovoff;
228 static int term;
229 static int wid;
230
231 static char *ovtxt;
232
233 static unsigned char *onelp;
234
235 static char *parptr;
236
237 static int num_ignores = 0;
238 static char *ignores[MAXARGS];
239
240 static jmp_buf env;
241 static jmp_buf mhlenv;
242
243 static char delim3[] = /* from forw.c */
244 "\n----------------------------------------------------------------------\n\n";
245 static char delim4[] = "\n------------------------------\n\n";
246
247 static FILE *(*mhl_action) () = (FILE *(*) ()) 0;
248
249
250 /*
251 * Redefine a couple of functions.
252 * These are undefined later in the code.
253 */
254 #define adios mhladios
255 #define done mhldone
256
257 /*
258 * prototypes
259 */
260 static void mhl_format (char *, int, int);
261 static int evalvar (struct mcomp *);
262 static int ptoi (char *, int *);
263 static int ptos (char *, char **);
264 static char *parse (void);
265 static void process (char *, char *, int, int);
266 static void mhlfile (FILE *, char *, int, int);
267 static int mcomp_flags (char *);
268 static char *mcomp_add (long, char *, char *);
269 static void mcomp_format (struct mcomp *, struct mcomp *);
270 static struct mcomp *add_queue (struct mcomp **, struct mcomp **, char *, char *, int);
271 static void free_queue (struct mcomp **, struct mcomp **);
272 static void putcomp (struct mcomp *, struct mcomp *, int);
273 static char *oneline (char *, long);
274 static void putstr (char *);
275 static void putch (char);
276 static RETSIGTYPE intrser (int);
277 static RETSIGTYPE pipeser (int);
278 static RETSIGTYPE quitser (int);
279 static void face_format (struct mcomp *);
280 static int doface (struct mcomp *);
281 static void mhladios (char *, char *, ...);
282 static void mhldone (int);
283 static void m_popen (char *);
284
285 int mhl (int, char **);
286 int mhlsbr (int, char **, FILE *(*)());
287 void m_pclose (void);
288
289 void clear_screen (void); /* from termsbr.c */
290 int SOprintf (char *, ...); /* from termsbr.c */
291 int sc_width (void); /* from termsbr.c */
292 int sc_length (void); /* from termsbr.c */
293 int sc_hardcopy (void); /* from termsbr.c */
294 struct hostent *gethostbystring ();
295
296
297 int
298 mhl (int argc, char **argv)
299 {
300 int length = 0, nomore = 0;
301 int i, width = 0, vecp = 0;
302 char *cp, *folder = NULL, *form = NULL;
303 char buf[BUFSIZ], *files[MAXARGS];
304 char **argp, **arguments;
305
306 invo_name = r1bindex (argv[0], '/');
307
308 /* read user profile/context */
309 context_read();
310
311 arguments = getarguments (invo_name, argc, argv, 1);
312 argp = arguments;
313
314 if ((cp = getenv ("MHLDEBUG")) && *cp)
315 mhldebug++;
316
317 if ((cp = getenv ("FACEPROC")))
318 faceproc = cp;
319
320 while ((cp = *argp++)) {
321 if (*cp == '-') {
322 switch (smatch (++cp, mhlswitches)) {
323 case AMBIGSW:
324 ambigsw (cp, mhlswitches);
325 done (1);
326 case UNKWNSW:
327 adios (NULL, "-%s unknown\n", cp);
328
329 case HELPSW:
330 snprintf (buf, sizeof(buf), "%s [switches] [files ...]", invo_name);
331 print_help (buf, mhlswitches, 1);
332 done (1);
333 case VERSIONSW:
334 print_version(invo_name);
335 done (1);
336
337 case BELLSW:
338 bellflg = 1;
339 continue;
340 case NBELLSW:
341 bellflg = -1;
342 continue;
343
344 case CLRSW:
345 clearflg = 1;
346 continue;
347 case NCLRSW:
348 clearflg = -1;
349 continue;
350
351 case FOLDSW:
352 if (!(folder = *argp++) || *folder == '-')
353 adios (NULL, "missing argument to %s", argp[-2]);
354 continue;
355 case FORMSW:
356 if (!(form = *argp++) || *form == '-')
357 adios (NULL, "missing argument to %s", argp[-2]);
358 continue;
359
360 case FACESW:
361 if (!(faceproc = *argp++) || *faceproc == '-')
362 adios (NULL, "missing argument to %s", argp[-2]);
363 continue;
364 case NFACESW:
365 faceproc = NULL;
366 continue;
367 case SLEEPSW:
368 if (!(cp = *argp++) || *cp == '-')
369 adios (NULL, "missing argument to %s", argp[-2]);
370 sleepsw = atoi (cp);/* ZERO ok! */
371 continue;
372
373 case PROGSW:
374 if (!(moreproc = *argp++) || *moreproc == '-')
375 adios (NULL, "missing argument to %s", argp[-2]);
376 continue;
377 case NPROGSW:
378 nomore++;
379 continue;
380
381 case LENSW:
382 if (!(cp = *argp++) || *cp == '-')
383 adios (NULL, "missing argument to %s", argp[-2]);
384 if ((length = atoi (cp)) < 1)
385 adios (NULL, "bad argument %s %s", argp[-2], cp);
386 continue;
387 case WIDTHSW:
388 if (!(cp = *argp++) || *cp == '-')
389 adios (NULL, "missing argument to %s", argp[-2]);
390 if ((width = atoi (cp)) < 1)
391 adios (NULL, "bad argument %s %s", argp[-2], cp);
392 continue;
393
394 case DGSTSW:
395 if (!(digest = *argp++) || *digest == '-')
396 adios (NULL, "missing argument to %s", argp[-2]);
397 continue;
398 case ISSUESW:
399 if (!(cp = *argp++) || *cp == '-')
400 adios (NULL, "missing argument to %s", argp[-2]);
401 if ((issue = atoi (cp)) < 1)
402 adios (NULL, "bad argument %s %s", argp[-2], cp);
403 continue;
404 case VOLUMSW:
405 if (!(cp = *argp++) || *cp == '-')
406 adios (NULL, "missing argument to %s", argp[-2]);
407 if ((volume = atoi (cp)) < 1)
408 adios (NULL, "bad argument %s %s", argp[-2], cp);
409 continue;
410
411 case FORW2SW:
412 forwall++; /* fall */
413 case FORW1SW:
414 forwflg++;
415 clearflg = -1;/* XXX */
416 continue;
417
418 case BITSTUFFSW:
419 dashstuff = 1; /* trinary logic */
420 continue;
421 case NBITSTUFFSW:
422 dashstuff = -1; /* trinary logic */
423 continue;
424
425 case NBODYSW:
426 dobody = 0;
427 continue;
428 }
429 }
430 files[vecp++] = cp;
431 }
432
433 if (!folder)
434 folder = getenv ("mhfolder");
435
436 if (isatty (fileno (stdout))) {
437 if (!nomore && !sc_hardcopy() && moreproc && *moreproc != '\0') {
438 if (mhl_action) {
439 SIGNAL (SIGINT, SIG_IGN);
440 SIGNAL2 (SIGQUIT, quitser);
441 }
442 SIGNAL2 (SIGPIPE, pipeser);
443 m_popen (moreproc);
444 ontty = PITTY;
445 } else {
446 SIGNAL (SIGINT, SIG_IGN);
447 SIGNAL2 (SIGQUIT, quitser);
448 ontty = ISTTY;
449 }
450 } else {
451 ontty = NOTTY;
452 }
453
454 mhl_format (form ? form : mhlformat, length, width);
455
456 if (vecp == 0) {
457 process (folder, NULL, 1, vecp = 1);
458 } else {
459 for (i = 0; i < vecp; i++)
460 process (folder, files[i], i + 1, vecp);
461 }
462
463 if (forwall) {
464 if (digest) {
465 printf ("%s", delim4);
466 if (volume == 0) {
467 snprintf (buf, sizeof(buf), "End of %s Digest\n", digest);
468 } else {
469 snprintf (buf, sizeof(buf), "End of %s Digest [Volume %d Issue %d]\n",
470 digest, volume, issue);
471 }
472 i = strlen (buf);
473 for (cp = buf + i; i > 1; i--)
474 *cp++ = '*';
475 *cp++ = '\n';
476 *cp = 0;
477 printf ("%s", buf);
478 }
479 else
480 printf ("\n------- End of Forwarded Message%s\n\n",
481 vecp > 1 ? "s" : "");
482 }
483
484 fflush(stdout);
485 if(ferror(stdout)){
486 adios("output", "error writing");
487 }
488
489 if (clearflg > 0 && ontty == NOTTY)
490 clear_screen ();
491
492 if (ontty == PITTY)
493 m_pclose ();
494
495 return exitstat;
496 }
497
498
499 static void
500 mhl_format (char *file, int length, int width)
501 {
502 int i;
503 char *bp, *cp, **ip;
504 char *ap, buffer[BUFSIZ], name[NAMESZ];
505 struct mcomp *c1;
506 struct stat st;
507 FILE *fp;
508 static dev_t dev = 0;
509 static ino_t ino = 0;
510 static time_t mtime = 0;
511
512 if (fmthd != NULL) {
513 if (stat (etcpath (file), &st) != NOTOK
514 && mtime == st.st_mtime
515 && dev == st.st_dev
516 && ino == st.st_ino)
517 goto out;
518 else
519 free_queue (&fmthd, &fmttl);
520 }
521
522 if ((fp = fopen (etcpath (file), "r")) == NULL)
523 adios (file, "unable to open format file");
524
525 if (fstat (fileno (fp), &st) != NOTOK) {
526 mtime = st.st_mtime;
527 dev = st.st_dev;
528 ino = st.st_ino;
529 }
530
531 global.c_ovtxt = global.c_nfs = NULL;
532 global.c_fmt = NULL;
533 global.c_offset = 0;
534 global.c_ovoff = -1;
535 if ((i = sc_width ()) > 5)
536 global.c_width = i;
537 global.c_cwidth = -1;
538 if ((i = sc_length ()) > 5)
539 global.c_length = i - 1;
540 global.c_flags = BELL; /* BELL is default */
541 *(ip = ignores) = NULL;
542
543 while (vfgets (fp, &ap) == OK) {
544 bp = ap;
545 if (*bp == ';')
546 continue;
547
548 if ((cp = strchr(bp, '\n')))
549 *cp = 0;
550
551 if (*bp == ':') {
552 c1 = add_queue (&fmthd, &fmttl, NULL, bp + 1, CLEARTEXT);
553 continue;
554 }
555
556 parptr = bp;
557 strncpy (name, parse(), sizeof(name));
558 switch (*parptr) {
559 case '\0':
560 case ',':
561 case '=':
562 /*
563 * Split this list of fields to ignore, and copy
564 * it to the end of the current "ignores" list.
565 */
566 if (!mh_strcasecmp (name, "ignores")) {
567 char **tmparray, **p;
568 int n = 0;
569
570 /* split the fields */
571 tmparray = brkstring (getcpy (++parptr), ",", NULL);
572
573 /* count number of fields split */
574 p = tmparray;
575 while (*p++)
576 n++;
577
578 /* copy pointers to split fields to ignores array */
579 ip = copyip (tmparray, ip, MAXARGS - num_ignores);
580 num_ignores += n;
581 continue;
582 }
583 parptr = bp;
584 while (*parptr) {
585 if (evalvar (&global))
586 adios (NULL, "format file syntax error: %s", bp);
587 if (*parptr)
588 parptr++;
589 }
590 continue;
591
592 case ':':
593 c1 = add_queue (&fmthd, &fmttl, name, NULL, INIT);
594 while (*parptr == ':' || *parptr == ',') {
595 parptr++;
596 if (evalvar (c1))
597 adios (NULL, "format file syntax error: %s", bp);
598 }
599 if (!c1->c_nfs && global.c_nfs) {
600 if (c1->c_flags & DATEFMT) {
601 if (global.c_flags & DATEFMT)
602 c1->c_nfs = getcpy (global.c_nfs);
603 }
604 else
605 if (c1->c_flags & ADDRFMT) {
606 if (global.c_flags & ADDRFMT)
607 c1->c_nfs = getcpy (global.c_nfs);
608 }
609 }
610 continue;
611
612 default:
613 adios (NULL, "format file syntax error: %s", bp);
614 }
615 }
616 fclose (fp);
617
618 if (mhldebug) {
619 for (c1 = fmthd; c1; c1 = c1->c_next) {
620 fprintf (stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n",
621 c1->c_name, c1->c_text, c1->c_ovtxt);
622 fprintf (stderr, "\tnfs=0x%x fmt=0x%x\n",
623 (unsigned int) c1->c_nfs, (unsigned int) c1->c_fmt);
624 fprintf (stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d length=%d\n",
625 c1->c_offset, c1->c_ovoff, c1->c_width,
626 c1->c_cwidth, c1->c_length);
627 fprintf (stderr, "\tflags=%s\n",
628 snprintb (buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
629 }
630 }
631
632 out:
633 if (clearflg == 1) {
634 global.c_flags |= CLEARSCR;
635 } else {
636 if (clearflg == -1)
637 global.c_flags &= ~CLEARSCR;
638 }
639
640 switch (bellflg) { /* command line may override format file */
641 case 1:
642 global.c_flags |= BELL;
643 break;
644 case -1:
645 global.c_flags &= ~BELL;
646 break;
647 }
648
649 if (length)
650 global.c_length = length;
651 if (width)
652 global.c_width = width;
653 if (global.c_length < 5)
654 global.c_length = 10000;
655 if (global.c_width < 5)
656 global.c_width = 10000;
657 }
658
659
660 static int
661 evalvar (struct mcomp *c1)
662 {
663 char *cp, name[NAMESZ];
664 struct triple *ap;
665
666 if (!*parptr)
667 return 0;
668 strncpy (name, parse(), sizeof(name));
669
670 if (!mh_strcasecmp (name, "component")) {
671 if (ptos (name, &c1->c_text))
672 return 1;
673 c1->c_flags &= ~NOCOMPONENT;
674 return 0;
675 }
676
677 if (!mh_strcasecmp (name, "overflowtext"))
678 return ptos (name, &c1->c_ovtxt);
679
680 if (!mh_strcasecmp (name, "formatfield")) {
681 char *nfs;
682
683 if (ptos (name, &cp))
684 return 1;
685 nfs = new_fs (NULL, NULL, cp);
686 c1->c_nfs = getcpy (nfs);
687 c1->c_flags |= FORMAT;
688 return 0;
689 }
690
691 if (!mh_strcasecmp (name, "decode")) {
692 char *nfs;
693
694 nfs = new_fs (NULL, NULL, "%(decode{text})");
695 c1->c_nfs = getcpy (nfs);
696 c1->c_flags |= FORMAT;
697 return 0;
698 }
699
700 if (!mh_strcasecmp (name, "offset"))
701 return ptoi (name, &c1->c_offset);
702 if (!mh_strcasecmp (name, "overflowoffset"))
703 return ptoi (name, &c1->c_ovoff);
704 if (!mh_strcasecmp (name, "width"))
705 return ptoi (name, &c1->c_width);
706 if (!mh_strcasecmp (name, "compwidth"))
707 return ptoi (name, &c1->c_cwidth);
708 if (!mh_strcasecmp (name, "length"))
709 return ptoi (name, &c1->c_length);
710 if (!mh_strcasecmp (name, "nodashstuffing"))
711 return (dashstuff = -1);
712
713 for (ap = triples; ap->t_name; ap++)
714 if (!mh_strcasecmp (ap->t_name, name)) {
715 c1->c_flags |= ap->t_on;
716 c1->c_flags &= ~ap->t_off;
717 return 0;
718 }
719
720 return 1;
721 }
722
723
724 static int
725 ptoi (char *name, int *i)
726 {
727 char *cp;
728
729 if (*parptr++ != '=' || !*(cp = parse ())) {
730 advise (NULL, "missing argument to variable %s", name);
731 return 1;
732 }
733
734 *i = atoi (cp);
735 return 0;
736 }
737
738
739 static int
740 ptos (char *name, char **s)
741 {
742 char c, *cp;
743
744 if (*parptr++ != '=') {
745 advise (NULL, "missing argument to variable %s", name);
746 return 1;
747 }
748
749 if (*parptr != '"') {
750 for (cp = parptr;
751 *parptr && *parptr != ':' && *parptr != ',';
752 parptr++)
753 continue;
754 } else {
755 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
756 if (*parptr == QUOTE)
757 if (!*++parptr)
758 parptr--;
759 }
760 c = *parptr;
761 *parptr = 0;
762 *s = getcpy (cp);
763 if ((*parptr = c) == '"')
764 parptr++;
765 return 0;
766 }
767
768
769 static char *
770 parse (void)
771 {
772 int c;
773 char *cp;
774 static char result[NAMESZ];
775
776 for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
777 c = *parptr;
778 if (isalnum (c)
779 || c == '.'
780 || c == '-'
781 || c == '_'
782 || c =='['
783 || c == ']')
784 *cp++ = c;
785 else
786 break;
787 }
788 *cp = '\0';
789
790 return result;
791 }
792
793
794 static void
795 process (char *folder, char *fname, int ofilen, int ofilec)
796 {
797 char *cp;
798 FILE *fp;
799 struct mcomp *c1;
800
801 switch (setjmp (env)) {
802 case OK:
803 if (fname) {
804 fp = mhl_action ? (*mhl_action) (fname) : fopen (fname, "r");
805 if (fp == NULL) {
806 advise (fname, "unable to open");
807 exitstat++;
808 return;
809 }
810 } else {
811 fname = "(stdin)";
812 fp = stdin;
813 }
814 cp = folder ? concat (folder, ":", fname, NULL) : getcpy (fname);
815 if (ontty != PITTY)
816 SIGNAL (SIGINT, intrser);
817 mhlfile (fp, cp, ofilen, ofilec); /* FALL THROUGH! */
818
819 default:
820 if (ontty != PITTY)
821 SIGNAL (SIGINT, SIG_IGN);
822 if (mhl_action == NULL && fp != stdin)
823 fclose (fp);
824 free (cp);
825 if (holder.c_text) {
826 free (holder.c_text);
827 holder.c_text = NULL;
828 }
829 free_queue (&msghd, &msgtl);
830 for (c1 = fmthd; c1; c1 = c1->c_next)
831 c1->c_flags &= ~HDROUTPUT;
832 break;
833 }
834 }
835
836
837 static void
838 mhlfile (FILE *fp, char *mname, int ofilen, int ofilec)
839 {
840 int state;
841 struct mcomp *c1, *c2, *c3;
842 char **ip, name[NAMESZ], buf[BUFSIZ];
843
844 if (forwall) {
845 if (digest)
846 printf ("%s", ofilen == 1 ? delim3 : delim4);
847 else {
848 printf ("\n-------");
849 if (ofilen == 1)
850 printf (" Forwarded Message%s", ofilec > 1 ? "s" : "");
851 else
852 printf (" Message %d", ofilen);
853 printf ("\n\n");
854 }
855 } else {
856 switch (ontty) {
857 case PITTY:
858 if (ofilec > 1) {
859 if (ofilen > 1) {
860 if ((global.c_flags & CLEARSCR))
861 clear_screen ();
862 else
863 printf ("\n\n\n");
864 }
865 printf (">>> %s\n\n", mname);
866 }
867 break;
868
869 case ISTTY:
870 strncpy (buf, "\n", sizeof(buf));
871 if (ofilec > 1) {
872 if (SOprintf ("Press <return> to list \"%s\"...", mname)) {
873 if (ofilen > 1)
874 printf ("\n\n\n");
875 printf ("Press <return> to list \"%s\"...", mname);
876 }
877 fflush (stdout);
878 buf[0] = 0;
879 read (fileno (stdout), buf, sizeof(buf));
880 }
881 if (strchr(buf, '\n')) {
882 if ((global.c_flags & CLEARSCR))
883 clear_screen ();
884 }
885 else
886 printf ("\n");
887 break;
888
889 default:
890 if (ofilec > 1) {
891 if (ofilen > 1) {
892 printf ("\n\n\n");
893 if (clearflg > 0)
894 clear_screen ();
895 }
896 printf (">>> %s\n\n", mname);
897 }
898 break;
899 }
900 }
901
902 for (state = FLD;;) {
903 switch (state = m_getfld (state, name, buf, sizeof(buf), fp)) {
904 case FLD:
905 case FLDPLUS:
906 for (ip = ignores; *ip; ip++)
907 if (!mh_strcasecmp (name, *ip)) {
908 while (state == FLDPLUS)
909 state = m_getfld (state, name, buf, sizeof(buf), fp);
910 break;
911 }
912 if (*ip)
913 continue;
914
915 for (c2 = fmthd; c2; c2 = c2->c_next)
916 if (!mh_strcasecmp (c2->c_name, name))
917 break;
918 c1 = NULL;
919 if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
920 for (c1 = msghd; c1; c1 = c1->c_next)
921 if (!mh_strcasecmp (c1->c_name, c3->c_name)) {
922 c1->c_text =
923 mcomp_add (c1->c_flags, buf, c1->c_text);
924 break;
925 }
926 if (c1 == NULL)
927 c1 = add_queue (&msghd, &msgtl, name, buf, 0);
928 while (state == FLDPLUS) {
929 state = m_getfld (state, name, buf, sizeof(buf), fp);
930 c1->c_text = add (buf, c1->c_text);
931 }
932 if (c2 == NULL)
933 c1->c_flags |= EXTRA;
934 continue;
935
936 case BODY:
937 case FILEEOF:
938 row = column = 0;
939 for (c1 = fmthd; c1; c1 = c1->c_next) {
940 if (c1->c_flags & CLEARTEXT) {
941 putcomp (c1, c1, ONECOMP);
942 continue;
943 }
944 if (!mh_strcasecmp (c1->c_name, "messagename")) {
945 holder.c_text = concat ("(Message ", mname, ")\n",
946 NULL);
947 putcomp (c1, &holder, ONECOMP);
948 free (holder.c_text);
949 holder.c_text = NULL;
950 continue;
951 }
952 if (!mh_strcasecmp (c1->c_name, "extras")) {
953 for (c2 = msghd; c2; c2 = c2->c_next)
954 if (c2->c_flags & EXTRA)
955 putcomp (c1, c2, TWOCOMP);
956 continue;
957 }
958 if (dobody && !mh_strcasecmp (c1->c_name, "body")) {
959 holder.c_text = mh_xmalloc (sizeof(buf));
960 strncpy (holder.c_text, buf, sizeof(buf));
961 while (state == BODY) {
962 putcomp (c1, &holder, BODYCOMP);
963 state = m_getfld (state, name, holder.c_text,
964 sizeof(buf), fp);
965 }
966 free (holder.c_text);
967 holder.c_text = NULL;
968 continue;
969 }
970 for (c2 = msghd; c2; c2 = c2->c_next)
971 if (!mh_strcasecmp (c2->c_name, c1->c_name)) {
972 putcomp (c1, c2, ONECOMP);
973 if (!(c1->c_flags & SPLIT))
974 break;
975 }
976 if (faceproc && c2 == NULL && (c1->c_flags & FACEFMT))
977 for (c2 = msghd; c2; c2 = c2->c_next)
978 if (c2->c_flags & FACEDFLT) {
979 if (c2->c_face == NULL)
980 face_format (c2);
981 if ((holder.c_text = c2->c_face)) {
982 putcomp (c1, &holder, ONECOMP);
983 holder.c_text = NULL;
984 }
985 break;
986 }
987 }
988 return;
989
990 case LENERR:
991 case FMTERR:
992 advise (NULL, "format error in message %s", mname);
993 exitstat++;
994 return;
995
996 default:
997 adios (NULL, "getfld() returned %d", state);
998 }
999 }
1000 }
1001
1002
1003 static int
1004 mcomp_flags (char *name)
1005 {
1006 struct pair *ap;
1007
1008 for (ap = pairs; ap->p_name; ap++)
1009 if (!mh_strcasecmp (ap->p_name, name))
1010 return (ap->p_flags);
1011
1012 return 0;
1013 }
1014
1015
1016 static char *
1017 mcomp_add (long flags, char *s1, char *s2)
1018 {
1019 char *dp;
1020
1021 if (!(flags & ADDRFMT))
1022 return add (s1, s2);
1023
1024 if (s2 && *(dp = s2 + strlen (s2) - 1) == '\n')
1025 *dp = 0;
1026
1027 return add (s1, add (",\n", s2));
1028 }
1029
1030
1031 struct pqpair {
1032 char *pq_text;
1033 char *pq_error;
1034 struct pqpair *pq_next;
1035 };
1036
1037
1038 static void
1039 mcomp_format (struct mcomp *c1, struct mcomp *c2)
1040 {
1041 int dat[5];
1042 char *ap, *cp;
1043 char buffer[BUFSIZ], error[BUFSIZ];
1044 struct comp *cptr;
1045 struct pqpair *p, *q;
1046 struct pqpair pq;
1047 struct mailname *mp;
1048
1049 ap = c2->c_text;
1050 c2->c_text = NULL;
1051 dat[0] = 0;
1052 dat[1] = 0;
1053 dat[2] = 0;
1054 dat[3] = sizeof(buffer) - 1;
1055 dat[4] = 0;
1056 fmt_compile (c1->c_nfs, &c1->c_fmt);
1057
1058 if (!(c1->c_flags & ADDRFMT)) {
1059 FINDCOMP (cptr, "text");
1060 if (cptr)
1061 cptr->c_text = ap;
1062 if ((cp = strrchr(ap, '\n'))) /* drop ending newline */
1063 if (!cp[1])
1064 *cp = 0;
1065
1066 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1067 /* Don't need to append a newline, dctime() already did */
1068 c2->c_text = getcpy (buffer);
1069
1070 free (ap);
1071 return;
1072 }
1073
1074 (q = &pq)->pq_next = NULL;
1075 while ((cp = getname (ap))) {
1076 if ((p = (struct pqpair *) calloc ((size_t) 1, sizeof(*p))) == NULL)
1077 adios (NULL, "unable to allocate pqpair memory");
1078
1079 if ((mp = getm (cp, NULL, 0, AD_NAME, error)) == NULL) {
1080 p->pq_text = getcpy (cp);
1081 p->pq_error = getcpy (error);
1082 } else {
1083 if ((c1->c_flags & FACEDFLT) && c2->c_face == NULL) {
1084 char *h, *o;
1085 if ((h = mp->m_host) == NULL)
1086 h = LocalName ();
1087 if ((o = OfficialName (h)))
1088 h = o;
1089 c2->c_face = concat ("address ", h, " ", mp->m_mbox,
1090 NULL);
1091 }
1092 p->pq_text = getcpy (mp->m_text);
1093 mnfree (mp);
1094 }
1095 q = (q->pq_next = p);
1096 }
1097
1098 for (p = pq.pq_next; p; p = q) {
1099 FINDCOMP (cptr, "text");
1100 if (cptr)
1101 cptr->c_text = p->pq_text;
1102 FINDCOMP (cptr, "error");
1103 if (cptr)
1104 cptr->c_text = p->pq_error;
1105
1106 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1107 if (*buffer) {
1108 if (c2->c_text)
1109 c2->c_text = add (",\n", c2->c_text);
1110 if (*(cp = buffer + strlen (buffer) - 1) == '\n')
1111 *cp = 0;
1112 c2->c_text = add (buffer, c2->c_text);
1113 }
1114
1115 free (p->pq_text);
1116 if (p->pq_error)
1117 free (p->pq_error);
1118 q = p->pq_next;
1119 free ((char *) p);
1120 }
1121
1122 c2->c_text = add ("\n", c2->c_text);
1123 free (ap);
1124 }
1125
1126
1127 static struct mcomp *
1128 add_queue (struct mcomp **head, struct mcomp **tail, char *name, char *text, int flags)
1129 {
1130 struct mcomp *c1;
1131
1132 if ((c1 = (struct mcomp *) calloc ((size_t) 1, sizeof(*c1))) == NULL)
1133 adios (NULL, "unable to allocate comp memory");
1134
1135 c1->c_flags = flags & ~INIT;
1136 if ((c1->c_name = name ? getcpy (name) : NULL))
1137 c1->c_flags |= mcomp_flags (c1->c_name);
1138 c1->c_text = text ? getcpy (text) : NULL;
1139 if (flags & INIT) {
1140 if (global.c_ovtxt)
1141 c1->c_ovtxt = getcpy (global.c_ovtxt);
1142 c1->c_offset = global.c_offset;
1143 c1->c_ovoff = global. c_ovoff;
1144 c1->c_width = c1->c_length = 0;
1145 c1->c_cwidth = global.c_cwidth;
1146 c1->c_flags |= global.c_flags & GFLAGS;
1147 }
1148 if (*head == NULL)
1149 *head = c1;
1150 if (*tail != NULL)
1151 (*tail)->c_next = c1;
1152 *tail = c1;
1153
1154 return c1;
1155 }
1156
1157
1158 static void
1159 free_queue (struct mcomp **head, struct mcomp **tail)
1160 {
1161 struct mcomp *c1, *c2;
1162
1163 for (c1 = *head; c1; c1 = c2) {
1164 c2 = c1->c_next;
1165 if (c1->c_name)
1166 free (c1->c_name);
1167 if (c1->c_text)
1168 free (c1->c_text);
1169 if (c1->c_ovtxt)
1170 free (c1->c_ovtxt);
1171 if (c1->c_nfs)
1172 free (c1->c_nfs);
1173 if (c1->c_fmt)
1174 free ((char *) c1->c_fmt);
1175 if (c1->c_face)
1176 free (c1->c_face);
1177 free ((char *) c1);
1178 }
1179
1180 *head = *tail = NULL;
1181 }
1182
1183
1184 static void
1185 putcomp (struct mcomp *c1, struct mcomp *c2, int flag)
1186 {
1187 int count, cchdr;
1188 unsigned char *cp;
1189
1190 cchdr = 0;
1191 lm = 0;
1192 llim = c1->c_length ? c1->c_length : -1;
1193 wid = c1->c_width ? c1->c_width : global.c_width;
1194 ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1195 + c1->c_offset;
1196 if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1197 ovtxt = "";
1198 if (wid < ovoff + strlen (ovtxt) + 5)
1199 adios (NULL, "component: %s width(%d) too small for overflow(%d)",
1200 c1->c_name, wid, ovoff + strlen (ovtxt) + 5);
1201 onelp = NULL;
1202
1203 if (c1->c_flags & CLEARTEXT) {
1204 putstr (c1->c_text);
1205 putstr ("\n");
1206 return;
1207 }
1208
1209 if (c1->c_flags & FACEFMT)
1210 switch (doface (c2)) {
1211 case NOTOK: /* error */
1212 case OK: /* async faceproc */
1213 return;
1214
1215 default: /* sync faceproc */
1216 break;
1217 }
1218
1219 if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1220 mcomp_format (c1, c2);
1221
1222 if (c1->c_flags & CENTER) {
1223 count = (c1->c_width ? c1->c_width : global.c_width)
1224 - c1->c_offset - strlen (c2->c_text);
1225 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1226 count -= strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1227 lm = c1->c_offset + (count / 2);
1228 } else {
1229 if (c1->c_offset)
1230 lm = c1->c_offset;
1231 }
1232
1233 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1234 if (c1->c_flags & UPPERCASE) /* uppercase component also */
1235 for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1236 if (islower (*cp))
1237 *cp = toupper (*cp);
1238 putstr (c1->c_text ? c1->c_text : c1->c_name);
1239 if (flag != BODYCOMP) {
1240 putstr (": ");
1241 if (!(c1->c_flags & SPLIT))
1242 c1->c_flags |= HDROUTPUT;
1243
1244 cchdr++;
1245 if ((count = c1->c_cwidth -
1246 strlen (c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1247 while (count--)
1248 putstr (" ");
1249 }
1250 else
1251 c1->c_flags |= HDROUTPUT; /* for BODYCOMP */
1252 }
1253
1254 if (flag == TWOCOMP
1255 && !(c2->c_flags & HDROUTPUT)
1256 && !(c2->c_flags & NOCOMPONENT)) {
1257 if (c1->c_flags & UPPERCASE)
1258 for (cp = c2->c_name; *cp; cp++)
1259 if (islower (*cp))
1260 *cp = toupper (*cp);
1261 putstr (c2->c_name);
1262 putstr (": ");
1263 if (!(c1->c_flags & SPLIT))
1264 c2->c_flags |= HDROUTPUT;
1265
1266 cchdr++;
1267 if ((count = c1->c_cwidth - strlen (c2->c_name) - 2) > 0)
1268 while (count--)
1269 putstr (" ");
1270 }
1271 if (c1->c_flags & UPPERCASE)
1272 for (cp = c2->c_text; *cp; cp++)
1273 if (islower (*cp))
1274 *cp = toupper (*cp);
1275
1276 count = 0;
1277 if (cchdr) {
1278 if (flag == TWOCOMP)
1279 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1280 : strlen (c2->c_name) + 2;
1281 else
1282 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1283 : strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1284 }
1285 count += c1->c_offset;
1286
1287 if ((cp = oneline (c2->c_text, c1->c_flags)))
1288 putstr(cp);
1289 if (term == '\n')
1290 putstr ("\n");
1291 while ((cp = oneline (c2->c_text, c1->c_flags))) {
1292 lm = count;
1293 if (flag == BODYCOMP
1294 && !(c1->c_flags & NOCOMPONENT))
1295 putstr (c1->c_text ? c1->c_text : c1->c_name);
1296 if (*cp)
1297 putstr (cp);
1298 if (term == '\n')
1299 putstr ("\n");
1300 }
1301 if (flag == BODYCOMP && term == '\n')
1302 c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */
1303 }
1304
1305
1306 static char *
1307 oneline (char *stuff, long flags)
1308 {
1309 int spc;
1310 char *cp, *ret;
1311
1312 if (onelp == NULL)
1313 onelp = stuff;
1314 if (*onelp == 0)
1315 return (onelp = NULL);
1316
1317 ret = onelp;
1318 term = 0;
1319 if (flags & COMPRESS) {
1320 for (spc = 1, cp = ret; *onelp; onelp++)
1321 if (isspace (*onelp)) {
1322 if (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT))) {
1323 term = '\n';
1324 *onelp++ = 0;
1325 break;
1326 }
1327 else
1328 if (!spc) {
1329 *cp++ = ' ';
1330 spc++;
1331 }
1332 }
1333 else {
1334 *cp++ = *onelp;
1335 spc = 0;
1336 }
1337
1338 *cp = 0;
1339 }
1340 else {
1341 while (*onelp && *onelp != '\n')
1342 onelp++;
1343 if (*onelp == '\n') {
1344 term = '\n';
1345 *onelp++ = 0;
1346 }
1347 if (flags & LEFTADJUST)
1348 while (*ret == ' ' || *ret == '\t')
1349 ret++;
1350 }
1351 if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1352 term = 0;
1353
1354 return ret;
1355 }
1356
1357
1358 static void
1359 putstr (char *string)
1360 {
1361 if (!column && lm > 0) {
1362 while (lm > 0)
1363 if (lm >= 8) {
1364 putch ('\t');
1365 lm -= 8;
1366 }
1367 else {
1368 putch (' ');
1369 lm--;
1370 }
1371 }
1372 lm = 0;
1373 while (*string)
1374 putch (*string++);
1375 }
1376
1377
1378 static void
1379 putch (char ch)
1380 {
1381 char buf[BUFSIZ];
1382
1383 if (llim == 0)
1384 return;
1385
1386 switch (ch) {
1387 case '\n':
1388 if (llim > 0)
1389 llim--;
1390 column = 0;
1391 row++;
1392 if (ontty != ISTTY || row != global.c_length)
1393 break;
1394 if (global.c_flags & BELL)
1395 putchar ('\007');
1396 fflush (stdout);
1397 buf[0] = 0;
1398 read (fileno (stdout), buf, sizeof(buf));
1399 if (strchr(buf, '\n')) {
1400 if (global.c_flags & CLEARSCR)
1401 clear_screen ();
1402 row = 0;
1403 } else {
1404 putchar ('\n');
1405 row = global.c_length / 3;
1406 }
1407 return;
1408
1409 case '\t':
1410 column |= 07;
1411 column++;
1412 break;
1413
1414 case '\b':
1415 column--;
1416 break;
1417
1418 case '\r':
1419 column = 0;
1420 break;
1421
1422 default:
1423 /*
1424 * If we are forwarding this message, and the first
1425 * column contains a dash, then add a dash and a space.
1426 */
1427 if (column == 0 && forwflg && (dashstuff >= 0) && ch == '-') {
1428 putchar ('-');
1429 putchar (' ');
1430 }
1431 if (ch >= ' ')
1432 column++;
1433 break;
1434 }
1435
1436 if (column >= wid) {
1437 putch ('\n');
1438 if (ovoff > 0)
1439 lm = ovoff;
1440 putstr (ovtxt ? ovtxt : "");
1441 putch (ch);
1442 return;
1443 }
1444
1445 putchar (ch);
1446 }
1447
1448
1449 static RETSIGTYPE
1450 intrser (int i)
1451 {
1452 #ifndef RELIABLE_SIGNALS
1453 SIGNAL (SIGINT, intrser);
1454 #endif
1455
1456 discard (stdout);
1457 putchar ('\n');
1458 longjmp (env, DONE);
1459 }
1460
1461
1462 static RETSIGTYPE
1463 pipeser (int i)
1464 {
1465 #ifndef RELIABLE_SIGNALS
1466 SIGNAL (SIGPIPE, pipeser);
1467 #endif
1468
1469 done (NOTOK);
1470 }
1471
1472
1473 static RETSIGTYPE
1474 quitser (int i)
1475 {
1476 #ifndef RELIABLE_SIGNALS
1477 SIGNAL (SIGQUIT, quitser);
1478 #endif
1479
1480 putchar ('\n');
1481 fflush (stdout);
1482 done (NOTOK);
1483 }
1484
1485
1486 static void
1487 face_format (struct mcomp *c1)
1488 {
1489 char *cp;
1490 struct mailname *mp;
1491
1492 if ((cp = c1->c_text) == NULL)
1493 return;
1494
1495 if ((cp = getname (cp))) {
1496 if ((mp = getm (cp, NULL, 0, AD_NAME, NULL))) {
1497 char *h, *o;
1498 if ((h = mp->m_host) == NULL)
1499 h = LocalName ();
1500 if ((o = OfficialName (h)))
1501 h = o;
1502 c1->c_face = concat ("address ", h, " ", mp->m_mbox, NULL);
1503 }
1504
1505 while ((cp = getname (cp)))
1506 continue;
1507 }
1508 }
1509
1510
1511 /*
1512 * faceproc is two elements defining the image agent's location:
1513 * Internet host
1514 * UDP port
1515 */
1516
1517 #include <sys/socket.h>
1518 #include <netinet/in.h>
1519 #include <netdb.h>
1520
1521 #ifdef HAVE_ARPA_INET_H
1522 # include <arpa/inet.h>
1523 #endif
1524
1525 static int
1526 doface (struct mcomp *c1)
1527 {
1528 int result, sd;
1529 struct sockaddr_in in_socket;
1530 struct sockaddr_in *isock = &in_socket;
1531 static int inited = OK;
1532 static int addrlen;
1533 static struct in_addr addr;
1534 static unsigned short portno;
1535
1536 if (inited == OK) {
1537 char *cp;
1538 char **ap = brkstring (cp = getcpy (faceproc), " ", "\n");
1539 struct hostent *hp;
1540
1541 if (ap[0] == NULL || ap[1] == NULL) {
1542 bad_faceproc: ;
1543 free (cp);
1544 return (inited = NOTOK);
1545 }
1546
1547 if (!(hp = gethostbystring (ap[0])))
1548 goto bad_faceproc;
1549 memcpy((char *) &addr, hp->h_addr, addrlen = hp->h_length);
1550
1551 portno = htons ((unsigned short) atoi (ap[1]));
1552 free (cp);
1553
1554 inited = DONE;
1555 }
1556 if (inited == NOTOK)
1557 return NOTOK;
1558
1559 isock->sin_family = AF_INET;
1560 isock->sin_port = portno;
1561 memcpy((char *) &isock->sin_addr, (char *) &addr, addrlen);
1562
1563 if ((sd = socket (AF_INET, SOCK_DGRAM, 0)) == NOTOK)
1564 return NOTOK;
1565
1566 result = sendto (sd, c1->c_text, strlen (c1->c_text), 0,
1567 (struct sockaddr *) isock, sizeof(*isock));
1568
1569 close (sd);
1570
1571 return (result != NOTOK ? OK : NOTOK);
1572 }
1573
1574 /*
1575 * COMMENTED OUT
1576 * This version doesn't use sockets
1577 */
1578 #if 0
1579
1580 static int
1581 doface (struct mcomp *c1)
1582 {
1583 int i, len, vecp;
1584 pid_t child_id;
1585 int result, pdi[2], pdo[2];
1586 char *bp, *cp;
1587 char buffer[BUFSIZ], *vec[10];
1588
1589 if (pipe (pdi) == NOTOK)
1590 return NOTOK;
1591 if (pipe (pdo) == NOTOK) {
1592 close (pdi[0]);
1593 close (pdi[1]);
1594 return NOTOK;
1595 }
1596
1597 for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
1598 sleep (5);
1599
1600 switch (child_id) {
1601 case NOTOK:
1602 /* oops... fork error */
1603 return NOTOK;
1604
1605 case OK:
1606 /* child process */
1607 SIGNAL (SIGINT, SIG_IGN);
1608 SIGNAL (SIGQUIT, SIG_IGN);
1609 if (pdi[0] != fileno (stdin)) {
1610 dup2 (pdi[0], fileno (stdin));
1611 close (pdi[0]);
1612 }
1613 close (pdi[1]);
1614 close (pdo[0]);
1615 if (pdo[1] != fileno (stdout)) {
1616 dup2 (pdo[1], fileno (stdout));
1617 close (pdo[1]);
1618 }
1619 vecp = 0;
1620 vec[vecp++] = r1bindex (faceproc, '/');
1621 vec[vecp++] = "-e";
1622 if (sleepsw != NOTOK) {
1623 vec[vecp++] = "-s";
1624 snprintf (buffer, sizeof(buffer), "%d", sleepsw);
1625 vec[vecp++] = buffer;
1626 }
1627 vec[vecp] = NULL;
1628 execvp (faceproc, vec);
1629 fprintf (stderr, "unable to exec ");
1630 perror (faceproc);
1631 _exit (-1); /* NOTREACHED */
1632
1633 default:
1634 /* parent process */
1635 close (pdi[0]);
1636 i = strlen (c1->c_text);
1637 if (write (pdi[1], c1->c_text, i) != i)
1638 adios ("pipe", "error writing to");
1639 free (c1->c_text), c1->c_text = NULL;
1640 close (pdi[1]);
1641
1642 close (pdo[1]);
1643 cp = NULL, len = 0;
1644 result = DONE;
1645 while ((i = read (pdo[0], buffer, strlen (buffer))) > 0) {
1646 if (cp) {
1647 int j;
1648 char *dp;
1649 dp = mh_xrealloc (cp, (unsigned) (j = len + i));
1650 memcpy(dp + len, buffer, i);
1651 cp = dp, len = j;
1652 }
1653 else {
1654 cp = mh_xmalloc ((unsigned) i);
1655 memcpy(cp, buffer, i);
1656 len = i;
1657 }
1658 if (result == DONE)
1659 for (bp = buffer + i - 1; bp >= buffer; bp--)
1660 if (!isascii (*bp) || iscntrl (*bp)) {
1661 result = OK;
1662 break;
1663 }
1664 }
1665 close (pdo[0]);
1666
1667 /* no waiting for child... */
1668
1669 if (result == OK) { /* binary */
1670 if (write (1, cp, len) != len)
1671 adios ("writing", "error");
1672 free (cp);
1673 }
1674 else /* empty */
1675 if ((c1->c_text = cp) == NULL)
1676 result = OK;
1677 break;
1678 }
1679
1680 return result;
1681 }
1682 #endif /* COMMENTED OUT */
1683
1684
1685 int
1686 mhlsbr (int argc, char **argv, FILE *(*action)())
1687 {
1688 SIGNAL_HANDLER istat, pstat, qstat;
1689 char *cp;
1690 struct mcomp *c1;
1691
1692 switch (setjmp (mhlenv)) {
1693 case OK:
1694 cp = invo_name;
1695 sleepsw = 0; /* XXX */
1696 bellflg = clearflg = forwflg = forwall = exitstat = 0;
1697 digest = NULL;
1698 ontty = NOTTY;
1699 mhl_action = action;
1700
1701 /*
1702 * If signal is at default action, then start ignoring
1703 * it, else let it set to its current action.
1704 */
1705 if ((istat = SIGNAL (SIGINT, SIG_IGN)) != SIG_DFL)
1706 SIGNAL (SIGINT, istat);
1707 if ((qstat = SIGNAL (SIGQUIT, SIG_IGN)) != SIG_DFL)
1708 SIGNAL (SIGQUIT, qstat);
1709 pstat = SIGNAL (SIGPIPE, pipeser);
1710 mhl (argc, argv); /* FALL THROUGH! */
1711
1712 default:
1713 SIGNAL (SIGINT, istat);
1714 SIGNAL (SIGQUIT, qstat);
1715 SIGNAL (SIGPIPE, SIG_IGN);/* should probably change to block instead */
1716 if (ontty == PITTY)
1717 m_pclose ();
1718 SIGNAL (SIGPIPE, pstat);
1719 invo_name = cp;
1720 if (holder.c_text) {
1721 free (holder.c_text);
1722 holder.c_text = NULL;
1723 }
1724 free_queue (&msghd, &msgtl);
1725 for (c1 = fmthd; c1; c1 = c1->c_next)
1726 c1->c_flags &= ~HDROUTPUT;
1727 return exitstat;
1728 }
1729 }
1730
1731 #undef adios
1732 #undef done
1733
1734 static void
1735 mhladios (char *what, char *fmt, ...)
1736 {
1737 va_list ap;
1738
1739 va_start(ap, fmt);
1740 advertise (what, NULL, fmt, ap);
1741 va_end(ap);
1742 mhldone (1);
1743 }
1744
1745
1746 static void
1747 mhldone (int status)
1748 {
1749 exitstat = status;
1750 if (mhl_action)
1751 longjmp (mhlenv, DONE);
1752 else
1753 done (exitstat);
1754 }
1755
1756
1757 static int m_pid = NOTOK;
1758 static int sd = NOTOK;
1759
1760 static void
1761 m_popen (char *name)
1762 {
1763 int pd[2];
1764
1765 if (mhl_action && (sd = dup (fileno (stdout))) == NOTOK)
1766 adios ("standard output", "unable to dup()");
1767
1768 if (pipe (pd) == NOTOK)
1769 adios ("pipe", "unable to");
1770
1771 switch (m_pid = vfork ()) {
1772 case NOTOK:
1773 adios ("fork", "unable to");
1774
1775 case OK:
1776 SIGNAL (SIGINT, SIG_DFL);
1777 SIGNAL (SIGQUIT, SIG_DFL);
1778
1779 close (pd[1]);
1780 if (pd[0] != fileno (stdin)) {
1781 dup2 (pd[0], fileno (stdin));
1782 close (pd[0]);
1783 }
1784 execlp (name, r1bindex (name, '/'), NULL);
1785 fprintf (stderr, "unable to exec ");
1786 perror (name);
1787 _exit (-1);
1788
1789 default:
1790 close (pd[0]);
1791 if (pd[1] != fileno (stdout)) {
1792 dup2 (pd[1], fileno (stdout));
1793 close (pd[1]);
1794 }
1795 }
1796 }
1797
1798
1799 void
1800 m_pclose (void)
1801 {
1802 if (m_pid == NOTOK)
1803 return;
1804
1805 if (sd != NOTOK) {
1806 fflush (stdout);
1807 if (dup2 (sd, fileno (stdout)) == NOTOK)
1808 adios ("standard output", "unable to dup2()");
1809
1810 clearerr (stdout);
1811 close (sd);
1812 sd = NOTOK;
1813 }
1814 else
1815 fclose (stdout);
1816
1817 pidwait (m_pid, OK);
1818 m_pid = NOTOK;
1819 }
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