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Fix warning in getaddrinfo() call.
[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
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 fflush(stdout);
484 if(ferror(stdout)){
485 adios("output", "error writing");
486 }
487
488 if (clearflg > 0 && ontty == NOTTY)
489 clear_screen ();
490
491 if (ontty == PITTY)
492 m_pclose ();
493
494 return exitstat;
495 }
496
497
498 static void
499 mhl_format (char *file, int length, int width)
500 {
501 int i;
502 char *bp, *cp, **ip;
503 char *ap, buffer[BUFSIZ], name[NAMESZ];
504 struct mcomp *c1;
505 struct stat st;
506 FILE *fp;
507 static dev_t dev = 0;
508 static ino_t ino = 0;
509 static time_t mtime = 0;
510
511 if (fmthd != NULL) {
512 if (stat (etcpath (file), &st) != NOTOK
513 && mtime == st.st_mtime
514 && dev == st.st_dev
515 && ino == st.st_ino)
516 goto out;
517 else
518 free_queue (&fmthd, &fmttl);
519 }
520
521 if ((fp = fopen (etcpath (file), "r")) == NULL)
522 adios (file, "unable to open format file");
523
524 if (fstat (fileno (fp), &st) != NOTOK) {
525 mtime = st.st_mtime;
526 dev = st.st_dev;
527 ino = st.st_ino;
528 }
529
530 global.c_ovtxt = global.c_nfs = NULL;
531 global.c_fmt = NULL;
532 global.c_offset = 0;
533 global.c_ovoff = -1;
534 if ((i = sc_width ()) > 5)
535 global.c_width = i;
536 global.c_cwidth = -1;
537 if ((i = sc_length ()) > 5)
538 global.c_length = i - 1;
539 global.c_flags = BELL; /* BELL is default */
540 *(ip = ignores) = NULL;
541
542 while (vfgets (fp, &ap) == OK) {
543 bp = ap;
544 if (*bp == ';')
545 continue;
546
547 if ((cp = strchr(bp, '\n')))
548 *cp = 0;
549
550 if (*bp == ':') {
551 c1 = add_queue (&fmthd, &fmttl, NULL, bp + 1, CLEARTEXT);
552 continue;
553 }
554
555 parptr = bp;
556 strncpy (name, parse(), sizeof(name));
557 switch (*parptr) {
558 case '\0':
559 case ',':
560 case '=':
561 /*
562 * Split this list of fields to ignore, and copy
563 * it to the end of the current "ignores" list.
564 */
565 if (!mh_strcasecmp (name, "ignores")) {
566 char **tmparray, **p;
567 int n = 0;
568
569 /* split the fields */
570 tmparray = brkstring (getcpy (++parptr), ",", NULL);
571
572 /* count number of fields split */
573 p = tmparray;
574 while (*p++)
575 n++;
576
577 /* copy pointers to split fields to ignores array */
578 ip = copyip (tmparray, ip, MAXARGS - num_ignores);
579 num_ignores += n;
580 continue;
581 }
582 parptr = bp;
583 while (*parptr) {
584 if (evalvar (&global))
585 adios (NULL, "format file syntax error: %s", bp);
586 if (*parptr)
587 parptr++;
588 }
589 continue;
590
591 case ':':
592 c1 = add_queue (&fmthd, &fmttl, name, NULL, INIT);
593 while (*parptr == ':' || *parptr == ',') {
594 parptr++;
595 if (evalvar (c1))
596 adios (NULL, "format file syntax error: %s", bp);
597 }
598 if (!c1->c_nfs && global.c_nfs) {
599 if (c1->c_flags & DATEFMT) {
600 if (global.c_flags & DATEFMT)
601 c1->c_nfs = getcpy (global.c_nfs);
602 }
603 else
604 if (c1->c_flags & ADDRFMT) {
605 if (global.c_flags & ADDRFMT)
606 c1->c_nfs = getcpy (global.c_nfs);
607 }
608 }
609 continue;
610
611 default:
612 adios (NULL, "format file syntax error: %s", bp);
613 }
614 }
615 fclose (fp);
616
617 if (mhldebug) {
618 for (c1 = fmthd; c1; c1 = c1->c_next) {
619 fprintf (stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n",
620 c1->c_name, c1->c_text, c1->c_ovtxt);
621 fprintf (stderr, "\tnfs=0x%x fmt=0x%x\n",
622 (unsigned int) c1->c_nfs, (unsigned int) c1->c_fmt);
623 fprintf (stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d length=%d\n",
624 c1->c_offset, c1->c_ovoff, c1->c_width,
625 c1->c_cwidth, c1->c_length);
626 fprintf (stderr, "\tflags=%s\n",
627 snprintb (buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
628 }
629 }
630
631 out:
632 if (clearflg == 1) {
633 global.c_flags |= CLEARSCR;
634 } else {
635 if (clearflg == -1)
636 global.c_flags &= ~CLEARSCR;
637 }
638
639 switch (bellflg) { /* command line may override format file */
640 case 1:
641 global.c_flags |= BELL;
642 break;
643 case -1:
644 global.c_flags &= ~BELL;
645 break;
646 }
647
648 if (length)
649 global.c_length = length;
650 if (width)
651 global.c_width = width;
652 if (global.c_length < 5)
653 global.c_length = 10000;
654 if (global.c_width < 5)
655 global.c_width = 10000;
656 }
657
658
659 static int
660 evalvar (struct mcomp *c1)
661 {
662 char *cp, name[NAMESZ];
663 struct triple *ap;
664
665 if (!*parptr)
666 return 0;
667 strncpy (name, parse(), sizeof(name));
668
669 if (!mh_strcasecmp (name, "component")) {
670 if (ptos (name, &c1->c_text))
671 return 1;
672 c1->c_flags &= ~NOCOMPONENT;
673 return 0;
674 }
675
676 if (!mh_strcasecmp (name, "overflowtext"))
677 return ptos (name, &c1->c_ovtxt);
678
679 if (!mh_strcasecmp (name, "formatfield")) {
680 char *nfs;
681
682 if (ptos (name, &cp))
683 return 1;
684 nfs = new_fs (NULL, NULL, cp);
685 c1->c_nfs = getcpy (nfs);
686 c1->c_flags |= FORMAT;
687 return 0;
688 }
689
690 if (!mh_strcasecmp (name, "decode")) {
691 char *nfs;
692
693 nfs = new_fs (NULL, NULL, "%(decode{text})");
694 c1->c_nfs = getcpy (nfs);
695 c1->c_flags |= FORMAT;
696 return 0;
697 }
698
699 if (!mh_strcasecmp (name, "offset"))
700 return ptoi (name, &c1->c_offset);
701 if (!mh_strcasecmp (name, "overflowoffset"))
702 return ptoi (name, &c1->c_ovoff);
703 if (!mh_strcasecmp (name, "width"))
704 return ptoi (name, &c1->c_width);
705 if (!mh_strcasecmp (name, "compwidth"))
706 return ptoi (name, &c1->c_cwidth);
707 if (!mh_strcasecmp (name, "length"))
708 return ptoi (name, &c1->c_length);
709 if (!mh_strcasecmp (name, "nodashstuffing"))
710 return (dashstuff = -1);
711
712 for (ap = triples; ap->t_name; ap++)
713 if (!mh_strcasecmp (ap->t_name, name)) {
714 c1->c_flags |= ap->t_on;
715 c1->c_flags &= ~ap->t_off;
716 return 0;
717 }
718
719 return 1;
720 }
721
722
723 static int
724 ptoi (char *name, int *i)
725 {
726 char *cp;
727
728 if (*parptr++ != '=' || !*(cp = parse ())) {
729 advise (NULL, "missing argument to variable %s", name);
730 return 1;
731 }
732
733 *i = atoi (cp);
734 return 0;
735 }
736
737
738 static int
739 ptos (char *name, char **s)
740 {
741 char c, *cp;
742
743 if (*parptr++ != '=') {
744 advise (NULL, "missing argument to variable %s", name);
745 return 1;
746 }
747
748 if (*parptr != '"') {
749 for (cp = parptr;
750 *parptr && *parptr != ':' && *parptr != ',';
751 parptr++)
752 continue;
753 } else {
754 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
755 if (*parptr == QUOTE)
756 if (!*++parptr)
757 parptr--;
758 }
759 c = *parptr;
760 *parptr = 0;
761 *s = getcpy (cp);
762 if ((*parptr = c) == '"')
763 parptr++;
764 return 0;
765 }
766
767
768 static char *
769 parse (void)
770 {
771 int c;
772 char *cp;
773 static char result[NAMESZ];
774
775 for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
776 c = *parptr;
777 if (isalnum (c)
778 || c == '.'
779 || c == '-'
780 || c == '_'
781 || c =='['
782 || c == ']')
783 *cp++ = c;
784 else
785 break;
786 }
787 *cp = '\0';
788
789 return result;
790 }
791
792
793 static void
794 process (char *folder, char *fname, int ofilen, int ofilec)
795 {
796 char *cp;
797 FILE *fp;
798 struct mcomp *c1;
799
800 switch (setjmp (env)) {
801 case OK:
802 if (fname) {
803 fp = mhl_action ? (*mhl_action) (fname) : fopen (fname, "r");
804 if (fp == NULL) {
805 advise (fname, "unable to open");
806 exitstat++;
807 return;
808 }
809 } else {
810 fname = "(stdin)";
811 fp = stdin;
812 }
813 cp = folder ? concat (folder, ":", fname, NULL) : getcpy (fname);
814 if (ontty != PITTY)
815 SIGNAL (SIGINT, intrser);
816 mhlfile (fp, cp, ofilen, ofilec); /* FALL THROUGH! */
817
818 default:
819 if (ontty != PITTY)
820 SIGNAL (SIGINT, SIG_IGN);
821 if (mhl_action == NULL && fp != stdin)
822 fclose (fp);
823 free (cp);
824 if (holder.c_text) {
825 free (holder.c_text);
826 holder.c_text = NULL;
827 }
828 free_queue (&msghd, &msgtl);
829 for (c1 = fmthd; c1; c1 = c1->c_next)
830 c1->c_flags &= ~HDROUTPUT;
831 break;
832 }
833 }
834
835
836 static void
837 mhlfile (FILE *fp, char *mname, int ofilen, int ofilec)
838 {
839 int state;
840 struct mcomp *c1, *c2, *c3;
841 char **ip, name[NAMESZ], buf[BUFSIZ];
842
843 if (forwall) {
844 if (digest)
845 printf ("%s", ofilen == 1 ? delim3 : delim4);
846 else {
847 printf ("\n-------");
848 if (ofilen == 1)
849 printf (" Forwarded Message%s", ofilec > 1 ? "s" : "");
850 else
851 printf (" Message %d", ofilen);
852 printf ("\n\n");
853 }
854 } else {
855 switch (ontty) {
856 case PITTY:
857 if (ofilec > 1) {
858 if (ofilen > 1) {
859 if ((global.c_flags & CLEARSCR))
860 clear_screen ();
861 else
862 printf ("\n\n\n");
863 }
864 printf (">>> %s\n\n", mname);
865 }
866 break;
867
868 case ISTTY:
869 strncpy (buf, "\n", sizeof(buf));
870 if (ofilec > 1) {
871 if (SOprintf ("Press <return> to list \"%s\"...", mname)) {
872 if (ofilen > 1)
873 printf ("\n\n\n");
874 printf ("Press <return> to list \"%s\"...", mname);
875 }
876 fflush (stdout);
877 buf[0] = 0;
878 read (fileno (stdout), buf, sizeof(buf));
879 }
880 if (strchr(buf, '\n')) {
881 if ((global.c_flags & CLEARSCR))
882 clear_screen ();
883 }
884 else
885 printf ("\n");
886 break;
887
888 default:
889 if (ofilec > 1) {
890 if (ofilen > 1) {
891 printf ("\n\n\n");
892 if (clearflg > 0)
893 clear_screen ();
894 }
895 printf (">>> %s\n\n", mname);
896 }
897 break;
898 }
899 }
900
901 for (state = FLD;;) {
902 switch (state = m_getfld (state, name, buf, sizeof(buf), fp)) {
903 case FLD:
904 case FLDPLUS:
905 for (ip = ignores; *ip; ip++)
906 if (!mh_strcasecmp (name, *ip)) {
907 while (state == FLDPLUS)
908 state = m_getfld (state, name, buf, sizeof(buf), fp);
909 break;
910 }
911 if (*ip)
912 continue;
913
914 for (c2 = fmthd; c2; c2 = c2->c_next)
915 if (!mh_strcasecmp (c2->c_name, name))
916 break;
917 c1 = NULL;
918 if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
919 for (c1 = msghd; c1; c1 = c1->c_next)
920 if (!mh_strcasecmp (c1->c_name, c3->c_name)) {
921 c1->c_text =
922 mcomp_add (c1->c_flags, buf, c1->c_text);
923 break;
924 }
925 if (c1 == NULL)
926 c1 = add_queue (&msghd, &msgtl, name, buf, 0);
927 while (state == FLDPLUS) {
928 state = m_getfld (state, name, buf, sizeof(buf), fp);
929 c1->c_text = add (buf, c1->c_text);
930 }
931 if (c2 == NULL)
932 c1->c_flags |= EXTRA;
933 continue;
934
935 case BODY:
936 case FILEEOF:
937 row = column = 0;
938 for (c1 = fmthd; c1; c1 = c1->c_next) {
939 if (c1->c_flags & CLEARTEXT) {
940 putcomp (c1, c1, ONECOMP);
941 continue;
942 }
943 if (!mh_strcasecmp (c1->c_name, "messagename")) {
944 holder.c_text = concat ("(Message ", mname, ")\n",
945 NULL);
946 putcomp (c1, &holder, ONECOMP);
947 free (holder.c_text);
948 holder.c_text = NULL;
949 continue;
950 }
951 if (!mh_strcasecmp (c1->c_name, "extras")) {
952 for (c2 = msghd; c2; c2 = c2->c_next)
953 if (c2->c_flags & EXTRA)
954 putcomp (c1, c2, TWOCOMP);
955 continue;
956 }
957 if (dobody && !mh_strcasecmp (c1->c_name, "body")) {
958 holder.c_text = mh_xmalloc (sizeof(buf));
959 strncpy (holder.c_text, buf, sizeof(buf));
960 while (state == BODY) {
961 putcomp (c1, &holder, BODYCOMP);
962 state = m_getfld (state, name, holder.c_text,
963 sizeof(buf), fp);
964 }
965 free (holder.c_text);
966 holder.c_text = NULL;
967 continue;
968 }
969 for (c2 = msghd; c2; c2 = c2->c_next)
970 if (!mh_strcasecmp (c2->c_name, c1->c_name)) {
971 putcomp (c1, c2, ONECOMP);
972 if (!(c1->c_flags & SPLIT))
973 break;
974 }
975 if (faceproc && c2 == NULL && (c1->c_flags & FACEFMT))
976 for (c2 = msghd; c2; c2 = c2->c_next)
977 if (c2->c_flags & FACEDFLT) {
978 if (c2->c_face == NULL)
979 face_format (c2);
980 if ((holder.c_text = c2->c_face)) {
981 putcomp (c1, &holder, ONECOMP);
982 holder.c_text = NULL;
983 }
984 break;
985 }
986 }
987 return;
988
989 case LENERR:
990 case FMTERR:
991 advise (NULL, "format error in message %s", mname);
992 exitstat++;
993 return;
994
995 default:
996 adios (NULL, "getfld() returned %d", state);
997 }
998 }
999 }
1000
1001
1002 static int
1003 mcomp_flags (char *name)
1004 {
1005 struct pair *ap;
1006
1007 for (ap = pairs; ap->p_name; ap++)
1008 if (!mh_strcasecmp (ap->p_name, name))
1009 return (ap->p_flags);
1010
1011 return 0;
1012 }
1013
1014
1015 static char *
1016 mcomp_add (long flags, char *s1, char *s2)
1017 {
1018 char *dp;
1019
1020 if (!(flags & ADDRFMT))
1021 return add (s1, s2);
1022
1023 if (s2 && *(dp = s2 + strlen (s2) - 1) == '\n')
1024 *dp = 0;
1025
1026 return add (s1, add (",\n", s2));
1027 }
1028
1029
1030 struct pqpair {
1031 char *pq_text;
1032 char *pq_error;
1033 struct pqpair *pq_next;
1034 };
1035
1036
1037 static void
1038 mcomp_format (struct mcomp *c1, struct mcomp *c2)
1039 {
1040 int dat[5];
1041 char *ap, *cp;
1042 char buffer[BUFSIZ], error[BUFSIZ];
1043 struct comp *cptr;
1044 struct pqpair *p, *q;
1045 struct pqpair pq;
1046 struct mailname *mp;
1047
1048 ap = c2->c_text;
1049 c2->c_text = NULL;
1050 dat[0] = 0;
1051 dat[1] = 0;
1052 dat[2] = 0;
1053 dat[3] = sizeof(buffer) - 1;
1054 dat[4] = 0;
1055 fmt_compile (c1->c_nfs, &c1->c_fmt);
1056
1057 if (!(c1->c_flags & ADDRFMT)) {
1058 FINDCOMP (cptr, "text");
1059 if (cptr)
1060 cptr->c_text = ap;
1061 if ((cp = strrchr(ap, '\n'))) /* drop ending newline */
1062 if (!cp[1])
1063 *cp = 0;
1064
1065 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1066 /* Don't need to append a newline, dctime() already did */
1067 c2->c_text = getcpy (buffer);
1068
1069 free (ap);
1070 return;
1071 }
1072
1073 (q = &pq)->pq_next = NULL;
1074 while ((cp = getname (ap))) {
1075 if ((p = (struct pqpair *) calloc ((size_t) 1, sizeof(*p))) == NULL)
1076 adios (NULL, "unable to allocate pqpair memory");
1077
1078 if ((mp = getm (cp, NULL, 0, AD_NAME, error)) == NULL) {
1079 p->pq_text = getcpy (cp);
1080 p->pq_error = getcpy (error);
1081 } else {
1082 if ((c1->c_flags & FACEDFLT) && c2->c_face == NULL) {
1083 char *h, *o;
1084 if ((h = mp->m_host) == NULL)
1085 h = LocalName ();
1086 if ((o = OfficialName (h)))
1087 h = o;
1088 c2->c_face = concat ("address ", h, " ", mp->m_mbox,
1089 NULL);
1090 }
1091 p->pq_text = getcpy (mp->m_text);
1092 mnfree (mp);
1093 }
1094 q = (q->pq_next = p);
1095 }
1096
1097 for (p = pq.pq_next; p; p = q) {
1098 FINDCOMP (cptr, "text");
1099 if (cptr)
1100 cptr->c_text = p->pq_text;
1101 FINDCOMP (cptr, "error");
1102 if (cptr)
1103 cptr->c_text = p->pq_error;
1104
1105 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1106 if (*buffer) {
1107 if (c2->c_text)
1108 c2->c_text = add (",\n", c2->c_text);
1109 if (*(cp = buffer + strlen (buffer) - 1) == '\n')
1110 *cp = 0;
1111 c2->c_text = add (buffer, c2->c_text);
1112 }
1113
1114 free (p->pq_text);
1115 if (p->pq_error)
1116 free (p->pq_error);
1117 q = p->pq_next;
1118 free ((char *) p);
1119 }
1120
1121 c2->c_text = add ("\n", c2->c_text);
1122 free (ap);
1123 }
1124
1125
1126 static struct mcomp *
1127 add_queue (struct mcomp **head, struct mcomp **tail, char *name, char *text, int flags)
1128 {
1129 struct mcomp *c1;
1130
1131 if ((c1 = (struct mcomp *) calloc ((size_t) 1, sizeof(*c1))) == NULL)
1132 adios (NULL, "unable to allocate comp memory");
1133
1134 c1->c_flags = flags & ~INIT;
1135 if ((c1->c_name = name ? getcpy (name) : NULL))
1136 c1->c_flags |= mcomp_flags (c1->c_name);
1137 c1->c_text = text ? getcpy (text) : NULL;
1138 if (flags & INIT) {
1139 if (global.c_ovtxt)
1140 c1->c_ovtxt = getcpy (global.c_ovtxt);
1141 c1->c_offset = global.c_offset;
1142 c1->c_ovoff = global. c_ovoff;
1143 c1->c_width = c1->c_length = 0;
1144 c1->c_cwidth = global.c_cwidth;
1145 c1->c_flags |= global.c_flags & GFLAGS;
1146 }
1147 if (*head == NULL)
1148 *head = c1;
1149 if (*tail != NULL)
1150 (*tail)->c_next = c1;
1151 *tail = c1;
1152
1153 return c1;
1154 }
1155
1156
1157 static void
1158 free_queue (struct mcomp **head, struct mcomp **tail)
1159 {
1160 struct mcomp *c1, *c2;
1161
1162 for (c1 = *head; c1; c1 = c2) {
1163 c2 = c1->c_next;
1164 if (c1->c_name)
1165 free (c1->c_name);
1166 if (c1->c_text)
1167 free (c1->c_text);
1168 if (c1->c_ovtxt)
1169 free (c1->c_ovtxt);
1170 if (c1->c_nfs)
1171 free (c1->c_nfs);
1172 if (c1->c_fmt)
1173 free ((char *) c1->c_fmt);
1174 if (c1->c_face)
1175 free (c1->c_face);
1176 free ((char *) c1);
1177 }
1178
1179 *head = *tail = NULL;
1180 }
1181
1182
1183 static void
1184 putcomp (struct mcomp *c1, struct mcomp *c2, int flag)
1185 {
1186 int count, cchdr;
1187 unsigned char *cp;
1188
1189 cchdr = 0;
1190 lm = 0;
1191 llim = c1->c_length ? c1->c_length : -1;
1192 wid = c1->c_width ? c1->c_width : global.c_width;
1193 ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1194 + c1->c_offset;
1195 if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1196 ovtxt = "";
1197 if (wid < ovoff + strlen (ovtxt) + 5)
1198 adios (NULL, "component: %s width(%d) too small for overflow(%d)",
1199 c1->c_name, wid, ovoff + strlen (ovtxt) + 5);
1200 onelp = NULL;
1201
1202 if (c1->c_flags & CLEARTEXT) {
1203 putstr (c1->c_text);
1204 putstr ("\n");
1205 return;
1206 }
1207
1208 if (c1->c_flags & FACEFMT)
1209 switch (doface (c2)) {
1210 case NOTOK: /* error */
1211 case OK: /* async faceproc */
1212 return;
1213
1214 default: /* sync faceproc */
1215 break;
1216 }
1217
1218 if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1219 mcomp_format (c1, c2);
1220
1221 if (c1->c_flags & CENTER) {
1222 count = (c1->c_width ? c1->c_width : global.c_width)
1223 - c1->c_offset - strlen (c2->c_text);
1224 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1225 count -= strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1226 lm = c1->c_offset + (count / 2);
1227 } else {
1228 if (c1->c_offset)
1229 lm = c1->c_offset;
1230 }
1231
1232 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1233 if (c1->c_flags & UPPERCASE) /* uppercase component also */
1234 for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1235 if (islower (*cp))
1236 *cp = toupper (*cp);
1237 putstr (c1->c_text ? c1->c_text : c1->c_name);
1238 if (flag != BODYCOMP) {
1239 putstr (": ");
1240 if (!(c1->c_flags & SPLIT))
1241 c1->c_flags |= HDROUTPUT;
1242
1243 cchdr++;
1244 if ((count = c1->c_cwidth -
1245 strlen (c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1246 while (count--)
1247 putstr (" ");
1248 }
1249 else
1250 c1->c_flags |= HDROUTPUT; /* for BODYCOMP */
1251 }
1252
1253 if (flag == TWOCOMP
1254 && !(c2->c_flags & HDROUTPUT)
1255 && !(c2->c_flags & NOCOMPONENT)) {
1256 if (c1->c_flags & UPPERCASE)
1257 for (cp = c2->c_name; *cp; cp++)
1258 if (islower (*cp))
1259 *cp = toupper (*cp);
1260 putstr (c2->c_name);
1261 putstr (": ");
1262 if (!(c1->c_flags & SPLIT))
1263 c2->c_flags |= HDROUTPUT;
1264
1265 cchdr++;
1266 if ((count = c1->c_cwidth - strlen (c2->c_name) - 2) > 0)
1267 while (count--)
1268 putstr (" ");
1269 }
1270 if (c1->c_flags & UPPERCASE)
1271 for (cp = c2->c_text; *cp; cp++)
1272 if (islower (*cp))
1273 *cp = toupper (*cp);
1274
1275 count = 0;
1276 if (cchdr) {
1277 if (flag == TWOCOMP)
1278 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1279 : strlen (c2->c_name) + 2;
1280 else
1281 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1282 : strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1283 }
1284 count += c1->c_offset;
1285
1286 if ((cp = oneline (c2->c_text, c1->c_flags)))
1287 putstr(cp);
1288 if (term == '\n')
1289 putstr ("\n");
1290 while ((cp = oneline (c2->c_text, c1->c_flags))) {
1291 lm = count;
1292 if (flag == BODYCOMP
1293 && !(c1->c_flags & NOCOMPONENT))
1294 putstr (c1->c_text ? c1->c_text : c1->c_name);
1295 if (*cp)
1296 putstr (cp);
1297 if (term == '\n')
1298 putstr ("\n");
1299 }
1300 if (flag == BODYCOMP && term == '\n')
1301 c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */
1302 }
1303
1304
1305 static char *
1306 oneline (char *stuff, long flags)
1307 {
1308 int spc;
1309 char *cp, *ret;
1310
1311 if (onelp == NULL)
1312 onelp = stuff;
1313 if (*onelp == 0)
1314 return (onelp = NULL);
1315
1316 ret = onelp;
1317 term = 0;
1318 if (flags & COMPRESS) {
1319 for (spc = 1, cp = ret; *onelp; onelp++)
1320 if (isspace (*onelp)) {
1321 if (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT))) {
1322 term = '\n';
1323 *onelp++ = 0;
1324 break;
1325 }
1326 else
1327 if (!spc) {
1328 *cp++ = ' ';
1329 spc++;
1330 }
1331 }
1332 else {
1333 *cp++ = *onelp;
1334 spc = 0;
1335 }
1336
1337 *cp = 0;
1338 }
1339 else {
1340 while (*onelp && *onelp != '\n')
1341 onelp++;
1342 if (*onelp == '\n') {
1343 term = '\n';
1344 *onelp++ = 0;
1345 }
1346 if (flags & LEFTADJUST)
1347 while (*ret == ' ' || *ret == '\t')
1348 ret++;
1349 }
1350 if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1351 term = 0;
1352
1353 return ret;
1354 }
1355
1356
1357 static void
1358 putstr (char *string)
1359 {
1360 if (!column && lm > 0) {
1361 while (lm > 0)
1362 if (lm >= 8) {
1363 putch ('\t');
1364 lm -= 8;
1365 }
1366 else {
1367 putch (' ');
1368 lm--;
1369 }
1370 }
1371 lm = 0;
1372 while (*string)
1373 putch (*string++);
1374 }
1375
1376
1377 static void
1378 putch (char ch)
1379 {
1380 char buf[BUFSIZ];
1381
1382 if (llim == 0)
1383 return;
1384
1385 switch (ch) {
1386 case '\n':
1387 if (llim > 0)
1388 llim--;
1389 column = 0;
1390 row++;
1391 if (ontty != ISTTY || row != global.c_length)
1392 break;
1393 if (global.c_flags & BELL)
1394 putchar ('\007');
1395 fflush (stdout);
1396 buf[0] = 0;
1397 read (fileno (stdout), buf, sizeof(buf));
1398 if (strchr(buf, '\n')) {
1399 if (global.c_flags & CLEARSCR)
1400 clear_screen ();
1401 row = 0;
1402 } else {
1403 putchar ('\n');
1404 row = global.c_length / 3;
1405 }
1406 return;
1407
1408 case '\t':
1409 column |= 07;
1410 column++;
1411 break;
1412
1413 case '\b':
1414 column--;
1415 break;
1416
1417 case '\r':
1418 column = 0;
1419 break;
1420
1421 default:
1422 /*
1423 * If we are forwarding this message, and the first
1424 * column contains a dash, then add a dash and a space.
1425 */
1426 if (column == 0 && forwflg && (dashstuff >= 0) && ch == '-') {
1427 putchar ('-');
1428 putchar (' ');
1429 }
1430 if (ch >= ' ')
1431 column++;
1432 break;
1433 }
1434
1435 if (column >= wid) {
1436 putch ('\n');
1437 if (ovoff > 0)
1438 lm = ovoff;
1439 putstr (ovtxt ? ovtxt : "");
1440 putch (ch);
1441 return;
1442 }
1443
1444 putchar (ch);
1445 }
1446
1447
1448 static RETSIGTYPE
1449 intrser (int i)
1450 {
1451 #ifndef RELIABLE_SIGNALS
1452 SIGNAL (SIGINT, intrser);
1453 #endif
1454
1455 discard (stdout);
1456 putchar ('\n');
1457 longjmp (env, DONE);
1458 }
1459
1460
1461 static RETSIGTYPE
1462 pipeser (int i)
1463 {
1464 #ifndef RELIABLE_SIGNALS
1465 SIGNAL (SIGPIPE, pipeser);
1466 #endif
1467
1468 done (NOTOK);
1469 }
1470
1471
1472 static RETSIGTYPE
1473 quitser (int i)
1474 {
1475 #ifndef RELIABLE_SIGNALS
1476 SIGNAL (SIGQUIT, quitser);
1477 #endif
1478
1479 putchar ('\n');
1480 fflush (stdout);
1481 done (NOTOK);
1482 }
1483
1484
1485 static void
1486 face_format (struct mcomp *c1)
1487 {
1488 char *cp;
1489 struct mailname *mp;
1490
1491 if ((cp = c1->c_text) == NULL)
1492 return;
1493
1494 if ((cp = getname (cp))) {
1495 if ((mp = getm (cp, NULL, 0, AD_NAME, NULL))) {
1496 char *h, *o;
1497 if ((h = mp->m_host) == NULL)
1498 h = LocalName ();
1499 if ((o = OfficialName (h)))
1500 h = o;
1501 c1->c_face = concat ("address ", h, " ", mp->m_mbox, NULL);
1502 }
1503
1504 while ((cp = getname (cp)))
1505 continue;
1506 }
1507 }
1508
1509
1510 /*
1511 * faceproc is two elements defining the image agent's location:
1512 * Internet host
1513 * UDP port
1514 */
1515
1516 #include <sys/socket.h>
1517 #include <netinet/in.h>
1518 #include <netdb.h>
1519
1520 #ifdef HAVE_ARPA_INET_H
1521 # include <arpa/inet.h>
1522 #endif
1523
1524 static int
1525 doface (struct mcomp *c1)
1526 {
1527 int result, sd;
1528 static int inited = OK;
1529 static struct sockaddr_storage ss;
1530 static socklen_t socklen;
1531 static int socktype;
1532 static int protocol;
1533
1534 if (inited == OK) {
1535 char *cp;
1536 char **ap = brkstring (cp = getcpy (faceproc), " ", "\n");
1537 struct addrinfo hints, *res;
1538
1539 if (ap[0] == NULL || ap[1] == NULL) {
1540 bad_faceproc: ;
1541 free (cp);
1542 return (inited = NOTOK);
1543 }
1544
1545 memset(&hints, 0, sizeof(hints));
1546 hints.ai_flags = AI_ADDRCONFIG;
1547 hints.ai_family = PF_UNSPEC;
1548 hints.ai_socktype = SOCK_DGRAM;
1549
1550 if (getaddrinfo(ap[0], ap[1], &hints, &res) != 0)
1551 goto bad_faceproc;
1552
1553 memcpy(&ss, res->ai_addr, res->ai_addrlen);
1554 socklen = res->ai_addrlen;
1555 socktype = res->ai_socktype;
1556 protocol = res->ai_protocol;
1557 freeaddrinfo(res);
1558
1559 inited = DONE;
1560 }
1561 if (inited == NOTOK)
1562 return NOTOK;
1563
1564 if ((sd = socket (ss.ss_family, socktype, protocol)) == NOTOK)
1565 return NOTOK;
1566
1567 result = sendto (sd, c1->c_text, strlen (c1->c_text), 0,
1568 (struct sockaddr *) &ss, socklen);
1569
1570 close (sd);
1571
1572 return (result != NOTOK ? OK : NOTOK);
1573 }
1574
1575 /*
1576 * COMMENTED OUT
1577 * This version doesn't use sockets
1578 */
1579 #if 0
1580
1581 static int
1582 doface (struct mcomp *c1)
1583 {
1584 int i, len, vecp;
1585 pid_t child_id;
1586 int result, pdi[2], pdo[2];
1587 char *bp, *cp;
1588 char buffer[BUFSIZ], *vec[10];
1589
1590 if (pipe (pdi) == NOTOK)
1591 return NOTOK;
1592 if (pipe (pdo) == NOTOK) {
1593 close (pdi[0]);
1594 close (pdi[1]);
1595 return NOTOK;
1596 }
1597
1598 for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
1599 sleep (5);
1600
1601 switch (child_id) {
1602 case NOTOK:
1603 /* oops... fork error */
1604 return NOTOK;
1605
1606 case OK:
1607 /* child process */
1608 SIGNAL (SIGINT, SIG_IGN);
1609 SIGNAL (SIGQUIT, SIG_IGN);
1610 if (pdi[0] != fileno (stdin)) {
1611 dup2 (pdi[0], fileno (stdin));
1612 close (pdi[0]);
1613 }
1614 close (pdi[1]);
1615 close (pdo[0]);
1616 if (pdo[1] != fileno (stdout)) {
1617 dup2 (pdo[1], fileno (stdout));
1618 close (pdo[1]);
1619 }
1620 vecp = 0;
1621 vec[vecp++] = r1bindex (faceproc, '/');
1622 vec[vecp++] = "-e";
1623 if (sleepsw != NOTOK) {
1624 vec[vecp++] = "-s";
1625 snprintf (buffer, sizeof(buffer), "%d", sleepsw);
1626 vec[vecp++] = buffer;
1627 }
1628 vec[vecp] = NULL;
1629 execvp (faceproc, vec);
1630 fprintf (stderr, "unable to exec ");
1631 perror (faceproc);
1632 _exit (-1); /* NOTREACHED */
1633
1634 default:
1635 /* parent process */
1636 close (pdi[0]);
1637 i = strlen (c1->c_text);
1638 if (write (pdi[1], c1->c_text, i) != i)
1639 adios ("pipe", "error writing to");
1640 free (c1->c_text), c1->c_text = NULL;
1641 close (pdi[1]);
1642
1643 close (pdo[1]);
1644 cp = NULL, len = 0;
1645 result = DONE;
1646 while ((i = read (pdo[0], buffer, strlen (buffer))) > 0) {
1647 if (cp) {
1648 int j;
1649 char *dp;
1650 dp = mh_xrealloc (cp, (unsigned) (j = len + i));
1651 memcpy(dp + len, buffer, i);
1652 cp = dp, len = j;
1653 }
1654 else {
1655 cp = mh_xmalloc ((unsigned) i);
1656 memcpy(cp, buffer, i);
1657 len = i;
1658 }
1659 if (result == DONE)
1660 for (bp = buffer + i - 1; bp >= buffer; bp--)
1661 if (!isascii (*bp) || iscntrl (*bp)) {
1662 result = OK;
1663 break;
1664 }
1665 }
1666 close (pdo[0]);
1667
1668 /* no waiting for child... */
1669
1670 if (result == OK) { /* binary */
1671 if (write (1, cp, len) != len)
1672 adios ("writing", "error");
1673 free (cp);
1674 }
1675 else /* empty */
1676 if ((c1->c_text = cp) == NULL)
1677 result = OK;
1678 break;
1679 }
1680
1681 return result;
1682 }
1683 #endif /* COMMENTED OUT */
1684
1685
1686 int
1687 mhlsbr (int argc, char **argv, FILE *(*action)())
1688 {
1689 SIGNAL_HANDLER istat, pstat, qstat;
1690 char *cp;
1691 struct mcomp *c1;
1692
1693 switch (setjmp (mhlenv)) {
1694 case OK:
1695 cp = invo_name;
1696 sleepsw = 0; /* XXX */
1697 bellflg = clearflg = forwflg = forwall = exitstat = 0;
1698 digest = NULL;
1699 ontty = NOTTY;
1700 mhl_action = action;
1701
1702 /*
1703 * If signal is at default action, then start ignoring
1704 * it, else let it set to its current action.
1705 */
1706 if ((istat = SIGNAL (SIGINT, SIG_IGN)) != SIG_DFL)
1707 SIGNAL (SIGINT, istat);
1708 if ((qstat = SIGNAL (SIGQUIT, SIG_IGN)) != SIG_DFL)
1709 SIGNAL (SIGQUIT, qstat);
1710 pstat = SIGNAL (SIGPIPE, pipeser);
1711 mhl (argc, argv); /* FALL THROUGH! */
1712
1713 default:
1714 SIGNAL (SIGINT, istat);
1715 SIGNAL (SIGQUIT, qstat);
1716 SIGNAL (SIGPIPE, SIG_IGN);/* should probably change to block instead */
1717 if (ontty == PITTY)
1718 m_pclose ();
1719 SIGNAL (SIGPIPE, pstat);
1720 invo_name = cp;
1721 if (holder.c_text) {
1722 free (holder.c_text);
1723 holder.c_text = NULL;
1724 }
1725 free_queue (&msghd, &msgtl);
1726 for (c1 = fmthd; c1; c1 = c1->c_next)
1727 c1->c_flags &= ~HDROUTPUT;
1728 return exitstat;
1729 }
1730 }
1731
1732 #undef adios
1733 #undef done
1734
1735 static void
1736 mhladios (char *what, char *fmt, ...)
1737 {
1738 va_list ap;
1739
1740 va_start(ap, fmt);
1741 advertise (what, NULL, fmt, ap);
1742 va_end(ap);
1743 mhldone (1);
1744 }
1745
1746
1747 static void
1748 mhldone (int status)
1749 {
1750 exitstat = status;
1751 if (mhl_action)
1752 longjmp (mhlenv, DONE);
1753 else
1754 done (exitstat);
1755 }
1756
1757
1758 static int m_pid = NOTOK;
1759 static int sd = NOTOK;
1760
1761 static void
1762 m_popen (char *name)
1763 {
1764 int pd[2];
1765
1766 if (mhl_action && (sd = dup (fileno (stdout))) == NOTOK)
1767 adios ("standard output", "unable to dup()");
1768
1769 if (pipe (pd) == NOTOK)
1770 adios ("pipe", "unable to");
1771
1772 switch (m_pid = vfork ()) {
1773 case NOTOK:
1774 adios ("fork", "unable to");
1775
1776 case OK:
1777 SIGNAL (SIGINT, SIG_DFL);
1778 SIGNAL (SIGQUIT, SIG_DFL);
1779
1780 close (pd[1]);
1781 if (pd[0] != fileno (stdin)) {
1782 dup2 (pd[0], fileno (stdin));
1783 close (pd[0]);
1784 }
1785 execlp (name, r1bindex (name, '/'), NULL);
1786 fprintf (stderr, "unable to exec ");
1787 perror (name);
1788 _exit (-1);
1789
1790 default:
1791 close (pd[0]);
1792 if (pd[1] != fileno (stdout)) {
1793 dup2 (pd[1], fileno (stdout));
1794 close (pd[1]);
1795 }
1796 }
1797 }
1798
1799
1800 void
1801 m_pclose (void)
1802 {
1803 if (m_pid == NOTOK)
1804 return;
1805
1806 if (sd != NOTOK) {
1807 fflush (stdout);
1808 if (dup2 (sd, fileno (stdout)) == NOTOK)
1809 adios ("standard output", "unable to dup2()");
1810
1811 clearerr (stdout);
1812 close (sd);
1813 sd = NOTOK;
1814 }
1815 else
1816 fclose (stdout);
1817
1818 pidwait (m_pid, OK);
1819 m_pid = NOTOK;
1820 }
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