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