3 * mhlsbr.c -- main routines for nmh message lister
5 * This code is Copyright (c) 2002, by the authors of nmh. See the
6 * COPYRIGHT file in the root directory of the nmh distribution for
7 * complete copyright information.
11 #include <h/signals.h>
12 #include <h/addrsbr.h>
13 #include <h/fmt_scan.h>
16 #include <h/m_setjmp.h>
20 #include <sys/types.h>
24 * for a component containing addresses, ADDRFMT, if COMPRESS is also
25 * set, then addresses get split wrong (not at the spaces between commas).
26 * To fix this correctly, putstr() should know about "atomic" strings that
27 * must NOT be broken across lines. That's too difficult for right now
28 * (it turns out that there are a number of degernate cases), so in
29 * oneline(), instead of
31 * (*onelp == '\n' && !onelp[1])
33 * being a terminating condition,
35 * (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT)))
37 * is used instead. This cuts the line prematurely, and gives us a much
38 * better chance of getting things right.
47 static struct swit mhlswitches[] = {
57 { "faceproc program", 0 },
61 { "folder +folder", 0 },
63 { "form formfile", 0 },
65 { "moreproc program", 0 },
69 { "length lines", 0 },
71 { "width columns", 0 },
73 { "sleep seconds", 0 },
75 { "dashstuffing", -12 }, /* interface from forw */
76 #define NBITSTUFFSW 14
77 { "nodashstuffing", -14 }, /* interface from forw */
83 { "forward", -7 }, /* interface from forw */
85 { "forwall", -7 }, /* interface from forw */
87 { "digest list", -6 },
89 { "volume number", -6 },
91 { "issue number", -5 },
97 #define NOCOMPONENT 0x000001 /* don't show component name */
98 #define UPPERCASE 0x000002 /* display in all upper case */
99 #define CENTER 0x000004 /* center line */
100 #define CLEARTEXT 0x000008 /* cleartext */
101 #define EXTRA 0x000010 /* an "extra" component */
102 #define HDROUTPUT 0x000020 /* already output */
103 #define CLEARSCR 0x000040 /* clear screen */
104 #define LEFTADJUST 0x000080 /* left justify multiple lines */
105 #define COMPRESS 0x000100 /* compress text */
106 #define ADDRFMT 0x000200 /* contains addresses */
107 #define BELL 0x000400 /* sound bell at EOP */
108 #define DATEFMT 0x000800 /* contains dates */
109 #define FORMAT 0x001000 /* parse address/date/RFC-2047 field */
110 #define INIT 0x002000 /* initialize component */
111 #define FACEFMT 0x004000 /* contains face */
112 #define FACEDFLT 0x008000 /* default for face */
113 #define SPLIT 0x010000 /* split headers (don't concatenate) */
114 #define NONEWLINE 0x020000 /* don't write trailing newline */
115 #define NOWRAP 0x040000 /* Don't wrap lines ever */
116 #define FMTFILTER 0x080000 /* Filter through format filter */
117 #define LBITS "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07CLEARSCR\010LEFTADJUST\011COMPRESS\012ADDRFMT\013BELL\014DATEFMT\015FORMAT\016INIT\017FACEFMT\020FACEDFLT\021SPLIT\022NONEWLINE\023NOWRAP\024FMTFILTER"
118 #define GFLAGS (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT | NOWRAP)
121 char *c_name; /* component name */
122 char *c_text; /* component text */
123 char *c_ovtxt; /* text overflow indicator */
124 char *c_nfs; /* iff FORMAT */
125 struct format *c_fmt; /* .. */
126 char *c_face; /* face designator */
127 int c_offset; /* left margin indentation */
128 int c_ovoff; /* overflow indentation */
129 int c_width; /* width of field */
130 int c_cwidth; /* width of component */
131 int c_length; /* length in lines */
133 struct mcomp *c_next;
136 static struct mcomp *msghd = NULL;
137 static struct mcomp *msgtl = NULL;
138 static struct mcomp *fmthd = NULL;
139 static struct mcomp *fmttl = NULL;
141 static struct mcomp global = {
142 NULL, NULL, NULL, NULL, NULL, NULL, 0, -1, 80, -1, 40, BELL, NULL
145 static struct mcomp holder = {
146 NULL, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, NOCOMPONENT, NULL
154 static struct pair pairs[] = {
156 { "From", ADDRFMT|FACEDFLT },
157 { "Sender", ADDRFMT },
158 { "Reply-To", ADDRFMT },
162 { "Resent-Date", DATEFMT },
163 { "Resent-From", ADDRFMT },
164 { "Resent-Sender", ADDRFMT },
165 { "Resent-Reply-To", ADDRFMT },
166 { "Resent-To", ADDRFMT },
167 { "Resent-cc", ADDRFMT },
168 { "Resent-Bcc", ADDRFMT },
179 static struct triple triples[] = {
180 { "nocomponent", NOCOMPONENT, 0 },
181 { "uppercase", UPPERCASE, 0 },
182 { "nouppercase", 0, UPPERCASE },
183 { "center", CENTER, 0 },
184 { "nocenter", 0, CENTER },
185 { "clearscreen", CLEARSCR, 0 },
186 { "noclearscreen", 0, CLEARSCR },
187 { "noclear", 0, CLEARSCR },
188 { "leftadjust", LEFTADJUST, 0 },
189 { "noleftadjust", 0, LEFTADJUST },
190 { "compress", COMPRESS, 0 },
191 { "nocompress", 0, COMPRESS },
192 { "split", SPLIT, 0 },
193 { "nosplit", 0, SPLIT },
194 { "addrfield", ADDRFMT, DATEFMT },
196 { "nobell", 0, BELL },
197 { "datefield", DATEFMT, ADDRFMT },
198 { "newline", 0, NONEWLINE },
199 { "nonewline", NONEWLINE, 0 },
200 { "wrap", 0, NOWRAP },
201 { "nowrap", NOWRAP, 0 },
202 { "format", FMTFILTER, 0 },
203 { "noformat", 0, FMTFILTER },
208 static int bellflg = 0;
209 static int clearflg = 0;
210 static int dashstuff = 0;
211 static int dobody = 1;
212 static int forwflg = 0;
213 static int forwall = 0;
215 static int sleepsw = NOTOK;
217 static char *digest = NULL;
218 static int volume = 0;
219 static int issue = 0;
221 static int exitstat = 0;
222 static int mhldebug = 0;
227 static int ontty = NOTTY;
230 static unsigned int column;
236 static unsigned int wid;
240 static unsigned char *onelp;
244 static int num_ignores = 0;
245 static char *ignores[MAXARGS];
248 static jmp_buf mhlenv;
250 static char delim3[] = /* from forw.c */
251 "\n----------------------------------------------------------------------\n\n";
252 static char delim4[] = "\n------------------------------\n\n";
254 static FILE *(*mhl_action) () = (FILE *(*) ()) 0;
258 * Redefine a couple of functions.
259 * These are undefined later in the code.
261 #define adios mhladios
267 static void mhl_format (char *, int, int);
268 static int evalvar (struct mcomp *);
269 static int ptoi (char *, int *);
270 static int ptos (char *, char **);
271 static char *parse (void);
272 static void process (char *, char *, int, int);
273 static void mhlfile (FILE *, char *, int, int);
274 static int mcomp_flags (char *);
275 static char *mcomp_add (long, char *, char *);
276 static void mcomp_format (struct mcomp *, struct mcomp *);
277 static struct mcomp *add_queue (struct mcomp **, struct mcomp **, char *, char *, int);
278 static void free_queue (struct mcomp **, struct mcomp **);
279 static void putcomp (struct mcomp *, struct mcomp *, int);
280 static char *oneline (char *, long);
281 static void putstr (char *, long);
282 static void putch (char, long);
283 static void intrser (int);
284 static void pipeser (int);
285 static void quitser (int);
286 static void face_format (struct mcomp *);
287 static int doface (struct mcomp *);
288 static void mhladios (char *, char *, ...);
289 static void mhldone (int);
290 static void m_popen (char *);
291 static void filterbody (struct mcomp *, char *, int, int, FILE *);
293 int mhl (int, char **);
294 int mhlsbr (int, char **, FILE *(*)());
295 void m_pclose (void);
297 void clear_screen (void); /* from termsbr.c */
298 int SOprintf (char *, ...); /* from termsbr.c */
299 int sc_width (void); /* from termsbr.c */
300 int sc_length (void); /* from termsbr.c */
301 int sc_hardcopy (void); /* from termsbr.c */
305 mhl (int argc, char **argv)
307 int length = 0, nomore = 0;
308 int i, width = 0, vecp = 0;
309 char *cp, *folder = NULL, *form = NULL;
310 char buf[BUFSIZ], *files[MAXARGS];
311 char **argp, **arguments;
313 invo_name = r1bindex (argv[0], '/');
315 /* read user profile/context */
318 arguments = getarguments (invo_name, argc, argv, 1);
321 if ((cp = getenv ("MHLDEBUG")) && *cp)
324 if ((cp = getenv ("FACEPROC")))
327 while ((cp = *argp++)) {
329 switch (smatch (++cp, mhlswitches)) {
331 ambigsw (cp, mhlswitches);
334 adios (NULL, "-%s unknown\n", cp);
337 snprintf (buf, sizeof(buf), "%s [switches] [files ...]", invo_name);
338 print_help (buf, mhlswitches, 1);
341 print_version(invo_name);
359 if (!(folder = *argp++) || *folder == '-')
360 adios (NULL, "missing argument to %s", argp[-2]);
363 if (!(form = *argp++) || *form == '-')
364 adios (NULL, "missing argument to %s", argp[-2]);
368 if (!(faceproc = *argp++) || *faceproc == '-')
369 adios (NULL, "missing argument to %s", argp[-2]);
375 if (!(cp = *argp++) || *cp == '-')
376 adios (NULL, "missing argument to %s", argp[-2]);
377 sleepsw = atoi (cp);/* ZERO ok! */
381 if (!(moreproc = *argp++) || *moreproc == '-')
382 adios (NULL, "missing argument to %s", argp[-2]);
389 if (!(cp = *argp++) || *cp == '-')
390 adios (NULL, "missing argument to %s", argp[-2]);
391 if ((length = atoi (cp)) < 1)
392 adios (NULL, "bad argument %s %s", argp[-2], cp);
395 if (!(cp = *argp++) || *cp == '-')
396 adios (NULL, "missing argument to %s", argp[-2]);
397 if ((width = atoi (cp)) < 1)
398 adios (NULL, "bad argument %s %s", argp[-2], cp);
402 if (!(digest = *argp++) || *digest == '-')
403 adios (NULL, "missing argument to %s", argp[-2]);
406 if (!(cp = *argp++) || *cp == '-')
407 adios (NULL, "missing argument to %s", argp[-2]);
408 if ((issue = atoi (cp)) < 1)
409 adios (NULL, "bad argument %s %s", argp[-2], cp);
412 if (!(cp = *argp++) || *cp == '-')
413 adios (NULL, "missing argument to %s", argp[-2]);
414 if ((volume = atoi (cp)) < 1)
415 adios (NULL, "bad argument %s %s", argp[-2], cp);
419 forwall++; /* fall */
422 clearflg = -1;/* XXX */
426 dashstuff = 1; /* trinary logic */
429 dashstuff = -1; /* trinary logic */
441 folder = getenv ("mhfolder");
443 if (isatty (fileno (stdout))) {
444 if (!nomore && !sc_hardcopy() && moreproc && *moreproc != '\0') {
446 SIGNAL (SIGINT, SIG_IGN);
447 SIGNAL2 (SIGQUIT, quitser);
449 SIGNAL2 (SIGPIPE, pipeser);
453 SIGNAL (SIGINT, SIG_IGN);
454 SIGNAL2 (SIGQUIT, quitser);
461 mhl_format (form ? form : mhlformat, length, width);
464 process (folder, NULL, 1, vecp = 1);
466 for (i = 0; i < vecp; i++)
467 process (folder, files[i], i + 1, vecp);
472 printf ("%s", delim4);
474 snprintf (buf, sizeof(buf), "End of %s Digest\n", digest);
476 snprintf (buf, sizeof(buf), "End of %s Digest [Volume %d Issue %d]\n",
477 digest, volume, issue);
480 for (cp = buf + i; i > 1; i--)
487 printf ("\n------- End of Forwarded Message%s\n\n",
488 vecp > 1 ? "s" : "");
493 adios("output", "error writing");
496 if (clearflg > 0 && ontty == NOTTY)
507 mhl_format (char *file, int length, int width)
511 char *ap, buffer[BUFSIZ], name[NAMESZ];
515 static dev_t dev = 0;
516 static ino_t ino = 0;
517 static time_t mtime = 0;
520 if (stat (etcpath (file), &st) != NOTOK
521 && mtime == st.st_mtime
526 free_queue (&fmthd, &fmttl);
529 if ((fp = fopen (etcpath (file), "r")) == NULL)
530 adios (file, "unable to open format file");
532 if (fstat (fileno (fp), &st) != NOTOK) {
538 global.c_ovtxt = global.c_nfs = NULL;
542 if ((i = sc_width ()) > 5)
544 global.c_cwidth = -1;
545 if ((i = sc_length ()) > 5)
546 global.c_length = i - 1;
547 global.c_flags = BELL; /* BELL is default */
548 *(ip = ignores) = NULL;
550 while (vfgets (fp, &ap) == OK) {
555 if ((cp = strchr(bp, '\n')))
559 c1 = add_queue (&fmthd, &fmttl, NULL, bp + 1, CLEARTEXT);
564 strncpy (name, parse(), sizeof(name));
570 * Split this list of fields to ignore, and copy
571 * it to the end of the current "ignores" list.
573 if (!mh_strcasecmp (name, "ignores")) {
574 char **tmparray, **p;
577 /* split the fields */
578 tmparray = brkstring (getcpy (++parptr), ",", NULL);
580 /* count number of fields split */
585 /* copy pointers to split fields to ignores array */
586 ip = copyip (tmparray, ip, MAXARGS - num_ignores);
592 if (evalvar (&global))
593 adios (NULL, "format file syntax error: %s", bp);
600 c1 = add_queue (&fmthd, &fmttl, name, NULL, INIT);
601 while (*parptr == ':' || *parptr == ',') {
604 adios (NULL, "format file syntax error: %s", bp);
606 if (!c1->c_nfs && global.c_nfs) {
607 if (c1->c_flags & DATEFMT) {
608 if (global.c_flags & DATEFMT)
609 c1->c_nfs = getcpy (global.c_nfs);
612 if (c1->c_flags & ADDRFMT) {
613 if (global.c_flags & ADDRFMT)
614 c1->c_nfs = getcpy (global.c_nfs);
620 adios (NULL, "format file syntax error: %s", bp);
626 for (c1 = fmthd; c1; c1 = c1->c_next) {
627 fprintf (stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n",
628 c1->c_name, c1->c_text, c1->c_ovtxt);
629 fprintf (stderr, "\tnfs=0x%x fmt=0x%x\n",
630 (unsigned int)(unsigned long) c1->c_nfs,
631 (unsigned int)(unsigned long) c1->c_fmt);
632 fprintf (stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d length=%d\n",
633 c1->c_offset, c1->c_ovoff, c1->c_width,
634 c1->c_cwidth, c1->c_length);
635 fprintf (stderr, "\tflags=%s\n",
636 snprintb (buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
642 global.c_flags |= CLEARSCR;
645 global.c_flags &= ~CLEARSCR;
648 switch (bellflg) { /* command line may override format file */
650 global.c_flags |= BELL;
653 global.c_flags &= ~BELL;
658 global.c_length = length;
660 global.c_width = width;
661 if (global.c_length < 5)
662 global.c_length = 10000;
663 if (global.c_width < 5)
664 global.c_width = 10000;
669 evalvar (struct mcomp *c1)
671 char *cp, name[NAMESZ];
676 strncpy (name, parse(), sizeof(name));
678 if (!mh_strcasecmp (name, "component")) {
679 if (ptos (name, &c1->c_text))
681 c1->c_flags &= ~NOCOMPONENT;
685 if (!mh_strcasecmp (name, "overflowtext"))
686 return ptos (name, &c1->c_ovtxt);
688 if (!mh_strcasecmp (name, "formatfield")) {
691 if (ptos (name, &cp))
693 nfs = new_fs (NULL, NULL, cp);
694 c1->c_nfs = getcpy (nfs);
695 c1->c_flags |= FORMAT;
699 if (!mh_strcasecmp (name, "decode")) {
702 nfs = new_fs (NULL, NULL, "%(decode{text})");
703 c1->c_nfs = getcpy (nfs);
704 c1->c_flags |= FORMAT;
708 if (!mh_strcasecmp (name, "offset"))
709 return ptoi (name, &c1->c_offset);
710 if (!mh_strcasecmp (name, "overflowoffset"))
711 return ptoi (name, &c1->c_ovoff);
712 if (!mh_strcasecmp (name, "width"))
713 return ptoi (name, &c1->c_width);
714 if (!mh_strcasecmp (name, "compwidth"))
715 return ptoi (name, &c1->c_cwidth);
716 if (!mh_strcasecmp (name, "length"))
717 return ptoi (name, &c1->c_length);
718 if (!mh_strcasecmp (name, "nodashstuffing"))
719 return (dashstuff = -1);
721 for (ap = triples; ap->t_name; ap++)
722 if (!mh_strcasecmp (ap->t_name, name)) {
723 c1->c_flags |= ap->t_on;
724 c1->c_flags &= ~ap->t_off;
733 ptoi (char *name, int *i)
737 if (*parptr++ != '=' || !*(cp = parse ())) {
738 advise (NULL, "missing argument to variable %s", name);
748 ptos (char *name, char **s)
752 if (*parptr++ != '=') {
753 advise (NULL, "missing argument to variable %s", name);
757 if (*parptr != '"') {
759 *parptr && *parptr != ':' && *parptr != ',';
763 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
764 if (*parptr == QUOTE)
771 if ((*parptr = c) == '"')
782 static char result[NAMESZ];
784 for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
803 process (char *folder, char *fname, int ofilen, int ofilec)
809 switch (m_setjmp (env)) {
812 fp = mhl_action ? (*mhl_action) (fname) : fopen (fname, "r");
814 advise (fname, "unable to open");
822 cp = folder ? concat (folder, ":", fname, NULL) : getcpy (fname);
824 SIGNAL (SIGINT, intrser);
825 mhlfile (fp, cp, ofilen, ofilec); /* FALL THROUGH! */
829 SIGNAL (SIGINT, SIG_IGN);
830 if (mhl_action == NULL && fp != stdin)
834 free (holder.c_text);
835 holder.c_text = NULL;
837 free_queue (&msghd, &msgtl);
838 for (c1 = fmthd; c1; c1 = c1->c_next)
839 c1->c_flags &= ~HDROUTPUT;
846 mhlfile (FILE *fp, char *mname, int ofilen, int ofilec)
849 struct mcomp *c1, *c2, *c3;
850 char **ip, name[NAMESZ], buf[BUFSIZ];
854 printf ("%s", ofilen == 1 ? delim3 : delim4);
856 printf ("\n-------");
858 printf (" Forwarded Message%s", ofilec > 1 ? "s" : "");
860 printf (" Message %d", ofilen);
868 if ((global.c_flags & CLEARSCR))
873 printf (">>> %s\n\n", mname);
878 strncpy (buf, "\n", sizeof(buf));
880 if (SOprintf ("Press <return> to list \"%s\"...", mname)) {
883 printf ("Press <return> to list \"%s\"...", mname);
887 read (fileno (stdout), buf, sizeof(buf));
889 if (strchr(buf, '\n')) {
890 if ((global.c_flags & CLEARSCR))
904 printf (">>> %s\n\n", mname);
910 for (state = FLD;;) {
911 switch (state = m_getfld (state, name, buf, sizeof(buf), fp)) {
914 for (ip = ignores; *ip; ip++)
915 if (!mh_strcasecmp (name, *ip)) {
916 while (state == FLDPLUS)
917 state = m_getfld (state, name, buf, sizeof(buf), fp);
923 for (c2 = fmthd; c2; c2 = c2->c_next)
924 if (!mh_strcasecmp (c2->c_name, name))
927 if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
928 for (c1 = msghd; c1; c1 = c1->c_next)
929 if (!mh_strcasecmp (c1->c_name, c3->c_name)) {
931 mcomp_add (c1->c_flags, buf, c1->c_text);
935 c1 = add_queue (&msghd, &msgtl, name, buf, 0);
936 while (state == FLDPLUS) {
937 state = m_getfld (state, name, buf, sizeof(buf), fp);
938 c1->c_text = add (buf, c1->c_text);
941 c1->c_flags |= EXTRA;
947 for (c1 = fmthd; c1; c1 = c1->c_next) {
948 if (c1->c_flags & CLEARTEXT) {
949 putcomp (c1, c1, ONECOMP);
952 if (!mh_strcasecmp (c1->c_name, "messagename")) {
953 holder.c_text = concat ("(Message ", mname, ")\n",
955 putcomp (c1, &holder, ONECOMP);
956 free (holder.c_text);
957 holder.c_text = NULL;
960 if (!mh_strcasecmp (c1->c_name, "extras")) {
961 for (c2 = msghd; c2; c2 = c2->c_next)
962 if (c2->c_flags & EXTRA)
963 putcomp (c1, c2, TWOCOMP);
966 if (dobody && !mh_strcasecmp (c1->c_name, "body")) {
967 if (c1->c_flags & FMTFILTER && state == BODY &&
968 formatproc != NULL) {
969 filterbody(c1, buf, sizeof(buf), state, fp);
971 holder.c_text = mh_xmalloc (sizeof(buf));
972 strncpy (holder.c_text, buf, sizeof(buf));
973 while (state == BODY) {
974 putcomp (c1, &holder, BODYCOMP);
975 state = m_getfld (state, name, holder.c_text,
978 free (holder.c_text);
979 holder.c_text = NULL;
983 for (c2 = msghd; c2; c2 = c2->c_next)
984 if (!mh_strcasecmp (c2->c_name, c1->c_name)) {
985 putcomp (c1, c2, ONECOMP);
986 if (!(c1->c_flags & SPLIT))
989 if (faceproc && c2 == NULL && (c1->c_flags & FACEFMT))
990 for (c2 = msghd; c2; c2 = c2->c_next)
991 if (c2->c_flags & FACEDFLT) {
992 if (c2->c_face == NULL)
994 if ((holder.c_text = c2->c_face)) {
995 putcomp (c1, &holder, ONECOMP);
996 holder.c_text = NULL;
1005 advise (NULL, "format error in message %s", mname);
1010 adios (NULL, "getfld() returned %d", state);
1017 mcomp_flags (char *name)
1021 for (ap = pairs; ap->p_name; ap++)
1022 if (!mh_strcasecmp (ap->p_name, name))
1023 return (ap->p_flags);
1030 mcomp_add (long flags, char *s1, char *s2)
1034 if (!(flags & ADDRFMT))
1035 return add (s1, s2);
1037 if (s2 && *(dp = s2 + strlen (s2) - 1) == '\n')
1040 return add (s1, add (",\n", s2));
1047 struct pqpair *pq_next;
1052 mcomp_format (struct mcomp *c1, struct mcomp *c2)
1056 char buffer[BUFSIZ], error[BUFSIZ];
1058 struct pqpair *p, *q;
1060 struct mailname *mp;
1067 dat[3] = sizeof(buffer) - 1;
1069 fmt_compile (c1->c_nfs, &c1->c_fmt);
1071 if (!(c1->c_flags & ADDRFMT)) {
1072 FINDCOMP (cptr, "text");
1075 if ((cp = strrchr(ap, '\n'))) /* drop ending newline */
1079 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1080 /* Don't need to append a newline, dctime() already did */
1081 c2->c_text = getcpy (buffer);
1087 (q = &pq)->pq_next = NULL;
1088 while ((cp = getname (ap))) {
1089 if ((p = (struct pqpair *) calloc ((size_t) 1, sizeof(*p))) == NULL)
1090 adios (NULL, "unable to allocate pqpair memory");
1092 if ((mp = getm (cp, NULL, 0, AD_NAME, error)) == NULL) {
1093 p->pq_text = getcpy (cp);
1094 p->pq_error = getcpy (error);
1096 if ((c1->c_flags & FACEDFLT) && c2->c_face == NULL) {
1098 if ((h = mp->m_host) == NULL)
1100 if ((o = OfficialName (h)))
1102 c2->c_face = concat ("address ", h, " ", mp->m_mbox,
1105 p->pq_text = getcpy (mp->m_text);
1108 q = (q->pq_next = p);
1111 for (p = pq.pq_next; p; p = q) {
1112 FINDCOMP (cptr, "text");
1114 cptr->c_text = p->pq_text;
1115 FINDCOMP (cptr, "error");
1117 cptr->c_text = p->pq_error;
1119 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1122 c2->c_text = add (",\n", c2->c_text);
1123 if (*(cp = buffer + strlen (buffer) - 1) == '\n')
1125 c2->c_text = add (buffer, c2->c_text);
1135 c2->c_text = add ("\n", c2->c_text);
1140 static struct mcomp *
1141 add_queue (struct mcomp **head, struct mcomp **tail, char *name, char *text, int flags)
1145 if ((c1 = (struct mcomp *) calloc ((size_t) 1, sizeof(*c1))) == NULL)
1146 adios (NULL, "unable to allocate comp memory");
1148 c1->c_flags = flags & ~INIT;
1149 if ((c1->c_name = name ? getcpy (name) : NULL))
1150 c1->c_flags |= mcomp_flags (c1->c_name);
1151 c1->c_text = text ? getcpy (text) : NULL;
1154 c1->c_ovtxt = getcpy (global.c_ovtxt);
1155 c1->c_offset = global.c_offset;
1156 c1->c_ovoff = global. c_ovoff;
1157 c1->c_width = c1->c_length = 0;
1158 c1->c_cwidth = global.c_cwidth;
1159 c1->c_flags |= global.c_flags & GFLAGS;
1164 (*tail)->c_next = c1;
1172 free_queue (struct mcomp **head, struct mcomp **tail)
1174 struct mcomp *c1, *c2;
1176 for (c1 = *head; c1; c1 = c2) {
1187 free ((char *) c1->c_fmt);
1193 *head = *tail = NULL;
1198 putcomp (struct mcomp *c1, struct mcomp *c2, int flag)
1205 llim = c1->c_length ? c1->c_length : -1;
1206 wid = c1->c_width ? c1->c_width : global.c_width;
1207 ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1209 if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1211 if (wid < ovoff + strlen (ovtxt) + 5)
1212 adios (NULL, "component: %s width(%d) too small for overflow(%d)",
1213 c1->c_name, wid, ovoff + strlen (ovtxt) + 5);
1216 if (c1->c_flags & CLEARTEXT) {
1217 putstr (c1->c_text, c1->c_flags);
1218 putstr ("\n", c1->c_flags);
1222 if (c1->c_flags & FACEFMT)
1223 switch (doface (c2)) {
1224 case NOTOK: /* error */
1225 case OK: /* async faceproc */
1228 default: /* sync faceproc */
1232 if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1233 mcomp_format (c1, c2);
1235 if (c1->c_flags & CENTER) {
1236 count = (c1->c_width ? c1->c_width : global.c_width)
1237 - c1->c_offset - strlen (c2->c_text);
1238 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1239 count -= strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1240 lm = c1->c_offset + (count / 2);
1246 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1247 if (c1->c_flags & UPPERCASE) /* uppercase component also */
1248 for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1250 *cp = toupper (*cp);
1251 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1252 if (flag != BODYCOMP) {
1253 putstr (": ", c1->c_flags);
1254 if (!(c1->c_flags & SPLIT))
1255 c1->c_flags |= HDROUTPUT;
1258 if ((count = c1->c_cwidth -
1259 strlen (c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1261 putstr (" ", c1->c_flags);
1264 c1->c_flags |= HDROUTPUT; /* for BODYCOMP */
1268 && !(c2->c_flags & HDROUTPUT)
1269 && !(c2->c_flags & NOCOMPONENT)) {
1270 if (c1->c_flags & UPPERCASE)
1271 for (cp = c2->c_name; *cp; cp++)
1273 *cp = toupper (*cp);
1274 putstr (c2->c_name, c1->c_flags);
1275 putstr (": ", c1->c_flags);
1276 if (!(c1->c_flags & SPLIT))
1277 c2->c_flags |= HDROUTPUT;
1280 if ((count = c1->c_cwidth - strlen (c2->c_name) - 2) > 0)
1282 putstr (" ", c1->c_flags);
1284 if (c1->c_flags & UPPERCASE)
1285 for (cp = c2->c_text; *cp; cp++)
1287 *cp = toupper (*cp);
1291 if (flag == TWOCOMP)
1292 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1293 : (int) strlen (c2->c_name) + 2;
1295 count = (c1->c_cwidth >= 0) ? (size_t) c1->c_cwidth
1296 : strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1298 count += c1->c_offset;
1300 if ((cp = oneline (c2->c_text, c1->c_flags)))
1301 putstr(cp, c1->c_flags);
1303 putstr ("\n", c1->c_flags);
1304 while ((cp = oneline (c2->c_text, c1->c_flags))) {
1306 if (flag == BODYCOMP
1307 && !(c1->c_flags & NOCOMPONENT))
1308 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1310 putstr (cp, c1->c_flags);
1312 putstr ("\n", c1->c_flags);
1314 if (flag == BODYCOMP && term == '\n')
1315 c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */
1320 oneline (char *stuff, long flags)
1328 return (onelp = NULL);
1332 if (flags & COMPRESS) {
1333 for (spc = 1, cp = ret; *onelp; onelp++)
1334 if (isspace (*onelp)) {
1335 if (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT))) {
1354 while (*onelp && *onelp != '\n')
1356 if (*onelp == '\n') {
1360 if (flags & LEFTADJUST)
1361 while (*ret == ' ' || *ret == '\t')
1364 if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1372 putstr (char *string, long flags)
1374 if (!column && lm > 0) {
1377 putch ('\t', flags);
1387 putch (*string++, flags);
1392 putch (char ch, long flags)
1405 if (ontty != ISTTY || row != global.c_length)
1407 if (global.c_flags & BELL)
1411 read (fileno (stdout), buf, sizeof(buf));
1412 if (strchr(buf, '\n')) {
1413 if (global.c_flags & CLEARSCR)
1418 row = global.c_length / 3;
1437 * If we are forwarding this message, and the first
1438 * column contains a dash, then add a dash and a space.
1440 if (column == 0 && forwflg && (dashstuff >= 0) && ch == '-') {
1449 if (column >= wid && (flags & NOWRAP) == 0) {
1450 putch ('\n', flags);
1453 putstr (ovtxt ? ovtxt : "", flags);
1469 longjmp (env, DONE);
1494 face_format (struct mcomp *c1)
1497 struct mailname *mp;
1499 if ((cp = c1->c_text) == NULL)
1502 if ((cp = getname (cp))) {
1503 if ((mp = getm (cp, NULL, 0, AD_NAME, NULL))) {
1505 if ((h = mp->m_host) == NULL)
1507 if ((o = OfficialName (h)))
1509 c1->c_face = concat ("address ", h, " ", mp->m_mbox, NULL);
1512 while ((cp = getname (cp)))
1519 * faceproc is two elements defining the image agent's location:
1524 #include <sys/socket.h>
1525 #include <netinet/in.h>
1527 #include <arpa/inet.h>
1530 doface (struct mcomp *c1)
1533 static int inited = OK;
1534 static struct sockaddr_storage ss;
1535 static socklen_t socklen;
1536 static int socktype;
1537 static int protocol;
1541 char **ap = brkstring (cp = getcpy (faceproc), " ", "\n");
1542 struct addrinfo hints, *res;
1544 if (ap[0] == NULL || ap[1] == NULL) {
1547 return (inited = NOTOK);
1550 memset(&hints, 0, sizeof(hints));
1551 #ifdef AI_ADDRCONFIG
1552 hints.ai_flags = AI_ADDRCONFIG;
1554 hints.ai_family = PF_UNSPEC;
1555 hints.ai_socktype = SOCK_DGRAM;
1557 if (getaddrinfo(ap[0], ap[1], &hints, &res) != 0)
1560 memcpy(&ss, res->ai_addr, res->ai_addrlen);
1561 socklen = res->ai_addrlen;
1562 socktype = res->ai_socktype;
1563 protocol = res->ai_protocol;
1568 if (inited == NOTOK)
1571 if ((sd = socket (ss.ss_family, socktype, protocol)) == NOTOK)
1574 result = sendto (sd, c1->c_text, strlen (c1->c_text), 0,
1575 (struct sockaddr *) &ss, socklen);
1579 return (result != NOTOK ? OK : NOTOK);
1584 * This version doesn't use sockets
1589 doface (struct mcomp *c1)
1593 int result, pdi[2], pdo[2];
1595 char buffer[BUFSIZ], *vec[10];
1597 if (pipe (pdi) == NOTOK)
1599 if (pipe (pdo) == NOTOK) {
1605 for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
1610 /* oops... fork error */
1615 SIGNAL (SIGINT, SIG_IGN);
1616 SIGNAL (SIGQUIT, SIG_IGN);
1617 if (pdi[0] != fileno (stdin)) {
1618 dup2 (pdi[0], fileno (stdin));
1623 if (pdo[1] != fileno (stdout)) {
1624 dup2 (pdo[1], fileno (stdout));
1628 vec[vecp++] = r1bindex (faceproc, '/');
1630 if (sleepsw != NOTOK) {
1632 snprintf (buffer, sizeof(buffer), "%d", sleepsw);
1633 vec[vecp++] = buffer;
1636 execvp (faceproc, vec);
1637 fprintf (stderr, "unable to exec ");
1639 _exit (-1); /* NOTREACHED */
1642 /* parent process */
1644 i = strlen (c1->c_text);
1645 if (write (pdi[1], c1->c_text, i) != i)
1646 adios ("pipe", "error writing to");
1647 free (c1->c_text), c1->c_text = NULL;
1653 while ((i = read (pdo[0], buffer, strlen (buffer))) > 0) {
1657 dp = mh_xrealloc (cp, (unsigned) (j = len + i));
1658 memcpy(dp + len, buffer, i);
1662 cp = mh_xmalloc ((unsigned) i);
1663 memcpy(cp, buffer, i);
1667 for (bp = buffer + i - 1; bp >= buffer; bp--)
1668 if (!isascii (*bp) || iscntrl (*bp)) {
1675 /* no waiting for child... */
1677 if (result == OK) { /* binary */
1678 if (write (1, cp, len) != len)
1679 adios ("writing", "error");
1683 if ((c1->c_text = cp) == NULL)
1690 #endif /* COMMENTED OUT */
1694 mhlsbr (int argc, char **argv, FILE *(*action)())
1696 SIGNAL_HANDLER istat = NULL, pstat = NULL, qstat = NULL;
1700 switch (m_setjmp (mhlenv)) {
1703 sleepsw = 0; /* XXX */
1704 bellflg = clearflg = forwflg = forwall = exitstat = 0;
1707 mhl_action = action;
1710 * If signal is at default action, then start ignoring
1711 * it, else let it set to its current action.
1713 if ((istat = SIGNAL (SIGINT, SIG_IGN)) != SIG_DFL)
1714 SIGNAL (SIGINT, istat);
1715 if ((qstat = SIGNAL (SIGQUIT, SIG_IGN)) != SIG_DFL)
1716 SIGNAL (SIGQUIT, qstat);
1717 pstat = SIGNAL (SIGPIPE, pipeser);
1718 mhl (argc, argv); /* FALL THROUGH! */
1721 SIGNAL (SIGINT, istat);
1722 SIGNAL (SIGQUIT, qstat);
1723 SIGNAL (SIGPIPE, SIG_IGN);/* should probably change to block instead */
1726 SIGNAL (SIGPIPE, pstat);
1728 if (holder.c_text) {
1729 free (holder.c_text);
1730 holder.c_text = NULL;
1732 free_queue (&msghd, &msgtl);
1733 for (c1 = fmthd; c1; c1 = c1->c_next)
1734 c1->c_flags &= ~HDROUTPUT;
1743 mhladios (char *what, char *fmt, ...)
1748 advertise (what, NULL, fmt, ap);
1755 mhldone (int status)
1759 longjmp (mhlenv, DONE);
1765 static int m_pid = NOTOK;
1766 static int sd = NOTOK;
1769 m_popen (char *name)
1773 if (mhl_action && (sd = dup (fileno (stdout))) == NOTOK)
1774 adios ("standard output", "unable to dup()");
1776 if (pipe (pd) == NOTOK)
1777 adios ("pipe", "unable to");
1779 switch (m_pid = vfork()) {
1781 adios ("fork", "unable to");
1784 SIGNAL (SIGINT, SIG_DFL);
1785 SIGNAL (SIGQUIT, SIG_DFL);
1788 if (pd[0] != fileno (stdin)) {
1789 dup2 (pd[0], fileno (stdin));
1792 execlp (name, r1bindex (name, '/'), NULL);
1793 fprintf (stderr, "unable to exec ");
1799 if (pd[1] != fileno (stdout)) {
1800 dup2 (pd[1], fileno (stdout));
1815 if (dup2 (sd, fileno (stdout)) == NOTOK)
1816 adios ("standard output", "unable to dup2()");
1825 pidwait (m_pid, OK);
1831 * Filter the body of a message through a specified format program
1835 filterbody (struct mcomp *c1, char *buf, int bufsz, int state, FILE *fp)
1837 struct mcomp holder;
1839 int fdinput[2], fdoutput[2], waitstat;
1841 pid_t writerpid, filterpid;
1844 * Create pipes so we can communicate with our filter process.
1847 if (pipe(fdinput) < 0) {
1848 adios(NULL, "Unable to create input pipe");
1851 if (pipe(fdoutput) < 0) {
1852 adios(NULL, "Unable to create output pipe");
1856 * Here's what we're doing to do.
1858 * - Fork ourselves and start writing data to the write side of the
1859 * input pipe (fdinput[1]).
1861 * - Fork and exec our filter program. We set the standard input of
1862 * our filter program to be the read side of our input pipe (fdinput[0]).
1863 * Standard output is set to the write side of our output pipe
1866 * - We read from the read side of the output pipe (fdoutput[0]).
1868 * We're forking because that's the simplest way to prevent any deadlocks.
1869 * (without doing something like switching to non-blocking I/O and using
1870 * select or poll, and I'm not interested in doing that).
1873 switch (writerpid = fork()) {
1876 * Our child process - just write to the filter input (fdinput[1]).
1877 * Close all other descriptors that we don't need.
1885 * Call m_getfld() until we're no longer in the BODY state
1888 while (state == BODY) {
1889 write(fdinput[1], buf, strlen(buf));
1890 state = m_getfld(state, name, buf, bufsz, fp);
1894 * We should be done; time to exit.
1901 adios(NULL, "Unable to fork for filter writer process");
1906 * Fork and exec() our filter program, after redirecting standard in
1907 * and standard out appropriately.
1910 switch (filterpid = fork()) {
1912 if (dup2(fdinput[0], STDIN_FILENO) < 0) {
1913 adios("formatproc", "Unable to dup2() standard input");
1915 if (dup2(fdoutput[1], STDOUT_FILENO) < 0) {
1916 adios("formatproc", "Unable to dup2() standard output");
1920 * Close everything (especially the old input and output
1921 * descriptors, since they've been dup'd to stdin and stdout),
1922 * and exec the formatproc.
1930 execlp(formatproc, formatproc, (char *) NULL);
1932 adios(formatproc, "Unable to execute filter");
1937 adios(NULL, "Unable to fork format program");
1941 * Close everything except our reader (fdoutput[0]);
1949 * As we read in this data, send it to putcomp
1952 holder.c_text = buf;
1954 while ((cc = read(fdoutput[0], buf, bufsz - 1)) > 0) {
1956 putcomp(c1, &holder, BODYCOMP);
1960 adios(NULL, "reading from formatproc");
1964 * See if we got any errors along the way. I'm a little leery of calling
1965 * waitpid() without WNOHANG, but it seems to be the most correct solution.
1968 if (waitpid(filterpid, &waitstat, 0) < 0) {
1969 if (errno != ECHILD) {
1970 adios("filterproc", "Unable to determine status");
1973 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
1974 pidstatus(waitstat, stderr, "filterproc");
1978 if (waitpid(writerpid, &waitstat, 0) < 0) {
1979 if (errno != ECHILD) {
1980 adios("writer process", "Unable to determine status");
1984 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
1985 pidstatus(waitstat, stderr, "writer process");