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