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>
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 { "folder +folder", 0 },
59 { "form formfile", 0 },
61 { "moreproc program", 0 },
65 { "length lines", 0 },
67 { "width columns", 0 },
69 { "sleep seconds", 0 },
71 { "dashstuffing", -12 }, /* interface from forw */
72 #define NBITSTUFFSW 12
73 { "nodashstuffing", -14 }, /* interface from forw */
79 { "forward", -7 }, /* interface from forw */
81 { "forwall", -7 }, /* interface from forw */
83 { "digest list", -6 },
85 { "volume number", -6 },
87 { "issue number", -5 },
91 { "fmtproc program", 0 },
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 SPLIT 0x010000 /* split headers (don't concatenate) */
112 #define NONEWLINE 0x020000 /* don't write trailing newline */
113 #define NOWRAP 0x040000 /* Don't wrap lines ever */
114 #define FMTFILTER 0x080000 /* Filter through format filter */
115 #define LBITS "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07CLEARSCR\010LEFTADJUST\011COMPRESS\012ADDRFMT\013BELL\014DATEFMT\015FORMAT\016INIT\021SPLIT\022NONEWLINE\023NOWRAP\024FMTFILTER"
116 #define GFLAGS (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT | NOWRAP)
119 * A list of format arguments
123 struct format *a_fmt;
125 struct arglist *a_next;
129 char *c_name; /* component name */
130 char *c_text; /* component text */
131 char *c_ovtxt; /* text overflow indicator */
132 char *c_nfs; /* iff FORMAT */
133 struct format *c_fmt; /* .. */
134 int c_offset; /* left margin indentation */
135 int c_ovoff; /* overflow indentation */
136 int c_width; /* width of field */
137 int c_cwidth; /* width of component */
138 int c_length; /* length in lines */
140 struct arglist *c_f_args; /* Argument list for filter*/
141 struct arglist *c_f_tail; /* Pointer to tail of list */
142 int c_nargs; /* Number of arguments */
143 struct mcomp *c_next;
146 static struct mcomp *msghd = NULL;
147 static struct mcomp *msgtl = NULL;
148 static struct mcomp *fmthd = NULL;
149 static struct mcomp *fmttl = NULL;
151 static struct mcomp global = {
152 NULL, NULL, NULL, NULL, NULL, 0, -1, 80, -1, 40, BELL, NULL, NULL, 0,
156 static struct mcomp holder = {
157 NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, NOCOMPONENT, NULL, NULL, 0,
166 static struct pair pairs[] = {
169 { "Sender", ADDRFMT },
170 { "Reply-To", ADDRFMT },
174 { "Resent-Date", DATEFMT },
175 { "Resent-From", ADDRFMT },
176 { "Resent-Sender", ADDRFMT },
177 { "Resent-Reply-To", ADDRFMT },
178 { "Resent-To", ADDRFMT },
179 { "Resent-cc", ADDRFMT },
180 { "Resent-Bcc", ADDRFMT },
190 static struct triple triples[] = {
191 { "nocomponent", NOCOMPONENT, 0 },
192 { "uppercase", UPPERCASE, 0 },
193 { "nouppercase", 0, UPPERCASE },
194 { "center", CENTER, 0 },
195 { "nocenter", 0, CENTER },
196 { "clearscreen", CLEARSCR, 0 },
197 { "noclearscreen", 0, CLEARSCR },
198 { "noclear", 0, CLEARSCR },
199 { "leftadjust", LEFTADJUST, 0 },
200 { "noleftadjust", 0, LEFTADJUST },
201 { "compress", COMPRESS, 0 },
202 { "nocompress", 0, COMPRESS },
203 { "split", SPLIT, 0 },
204 { "nosplit", 0, SPLIT },
205 { "addrfield", ADDRFMT, DATEFMT },
207 { "nobell", 0, BELL },
208 { "datefield", DATEFMT, ADDRFMT },
209 { "newline", 0, NONEWLINE },
210 { "nonewline", NONEWLINE, 0 },
211 { "wrap", 0, NOWRAP },
212 { "nowrap", NOWRAP, 0 },
213 { "format", FMTFILTER, 0 },
214 { "noformat", 0, FMTFILTER },
218 static char *addrcomps[] = {
235 static int bellflg = 0;
236 static int clearflg = 0;
237 static int dashstuff = 0;
238 static int dobody = 1;
239 static int forwflg = 0;
240 static int forwall = 0;
242 static int sleepsw = NOTOK;
244 static char *digest = NULL;
245 static int volume = 0;
246 static int issue = 0;
248 static int exitstat = 0;
249 static int mhldebug = 0;
251 static int filesize = 0;
256 static int ontty = NOTTY;
259 static unsigned int column;
265 static unsigned int wid;
269 static unsigned char *onelp;
273 static int num_ignores = 0;
274 static char *ignores[MAXARGS];
277 static jmp_buf mhlenv;
279 static char delim3[] = /* from forw.c */
280 "\n----------------------------------------------------------------------\n\n";
281 static char delim4[] = "\n------------------------------\n\n";
283 static FILE *(*mhl_action) () = (FILE *(*) ()) 0;
285 static struct comp *mhlcomp[128];
288 * Redefine a couple of functions.
289 * These are undefined later in the code.
291 #define adios mhladios
297 static void mhl_format (char *, int, int);
298 static int evalvar (struct mcomp *);
299 static int ptoi (char *, int *);
300 static int ptos (char *, char **);
301 static char *parse (void);
302 static void process (char *, char *, int, int);
303 static void mhlfile (FILE *, char *, int, int);
304 static int mcomp_flags (char *);
305 static char *mcomp_add (long, char *, char *);
306 static void mcomp_format (struct mcomp *, struct mcomp *);
307 static struct mcomp *add_queue (struct mcomp **, struct mcomp **, char *, char *, int);
308 static void free_queue (struct mcomp **, struct mcomp **);
309 static void putcomp (struct mcomp *, struct mcomp *, int);
310 static char *oneline (char *, long);
311 static void putstr (char *, long);
312 static void putch (char, long);
313 static void intrser (int);
314 static void pipeser (int);
315 static void quitser (int);
316 static void mhladios (char *, char *, ...);
317 static void mhldone (int);
318 static void m_popen (char *);
319 static void filterbody (struct mcomp *, char *, int, int, FILE *);
320 static int compileargs (struct mcomp *, char *);
321 static int checkcomp (char *, char *);
322 static void addcomp (int, char *, char *);
323 static void freecomps (void);
324 static void freecomptext (void);
328 mhl (int argc, char **argv)
330 int length = 0, nomore = 0;
331 unsigned int i, vecp = 0;
333 char *cp, *folder = NULL, *form = NULL;
334 char buf[BUFSIZ], *files[MAXARGS];
335 char **argp, **arguments;
337 invo_name = r1bindex (argv[0], '/');
339 /* read user profile/context */
342 arguments = getarguments (invo_name, argc, argv, 1);
345 if ((cp = getenv ("MHLDEBUG")) && *cp)
348 while ((cp = *argp++)) {
350 switch (smatch (++cp, mhlswitches)) {
352 ambigsw (cp, mhlswitches);
355 adios (NULL, "-%s unknown\n", cp);
358 snprintf (buf, sizeof(buf), "%s [switches] [files ...]", invo_name);
359 print_help (buf, mhlswitches, 1);
362 print_version(invo_name);
380 if (!(folder = *argp++) || *folder == '-')
381 adios (NULL, "missing argument to %s", argp[-2]);
384 if (!(form = *argp++) || *form == '-')
385 adios (NULL, "missing argument to %s", argp[-2]);
389 if (!(cp = *argp++) || *cp == '-')
390 adios (NULL, "missing argument to %s", argp[-2]);
391 sleepsw = atoi (cp);/* ZERO ok! */
395 if (!(moreproc = *argp++) || *moreproc == '-')
396 adios (NULL, "missing argument to %s", argp[-2]);
403 if (!(formatproc = *argp++) || *formatproc == '-')
404 adios (NULL, "missing argument to %s", argp[-2]);
411 if (!(cp = *argp++) || *cp == '-')
412 adios (NULL, "missing argument to %s", argp[-2]);
413 if ((length = atoi (cp)) < 1)
414 adios (NULL, "bad argument %s %s", argp[-2], cp);
417 if (!(cp = *argp++) || *cp == '-')
418 adios (NULL, "missing argument to %s", argp[-2]);
419 if ((width = atoi (cp)) < 1)
420 adios (NULL, "bad argument %s %s", argp[-2], cp);
424 if (!(digest = *argp++) || *digest == '-')
425 adios (NULL, "missing argument to %s", argp[-2]);
428 if (!(cp = *argp++) || *cp == '-')
429 adios (NULL, "missing argument to %s", argp[-2]);
430 if ((issue = atoi (cp)) < 1)
431 adios (NULL, "bad argument %s %s", argp[-2], cp);
434 if (!(cp = *argp++) || *cp == '-')
435 adios (NULL, "missing argument to %s", argp[-2]);
436 if ((volume = atoi (cp)) < 1)
437 adios (NULL, "bad argument %s %s", argp[-2], cp);
441 forwall++; /* fall */
444 clearflg = -1;/* XXX */
448 dashstuff = 1; /* trinary logic */
451 dashstuff = -1; /* trinary logic */
463 folder = getenv ("mhfolder");
465 if (isatty (fileno (stdout))) {
466 if (!nomore && !sc_hardcopy() && moreproc && *moreproc != '\0') {
468 SIGNAL (SIGINT, SIG_IGN);
469 SIGNAL2 (SIGQUIT, quitser);
471 SIGNAL2 (SIGPIPE, pipeser);
475 SIGNAL (SIGINT, SIG_IGN);
476 SIGNAL2 (SIGQUIT, quitser);
483 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++)
486 mhl_format (form ? form : mhlformat, length, width);
489 process (folder, NULL, 1, vecp = 1);
491 for (i = 0; i < vecp; i++)
492 process (folder, files[i], i + 1, vecp);
499 printf ("%s", delim4);
501 snprintf (buf, sizeof(buf), "End of %s Digest\n", digest);
503 snprintf (buf, sizeof(buf), "End of %s Digest [Volume %d Issue %d]\n",
504 digest, volume, issue);
507 for (cp = buf + i; i > 1; i--)
514 printf ("\n------- End of Forwarded Message%s\n",
515 vecp > 1 ? "s" : "");
520 adios("output", "error writing");
523 if (clearflg > 0 && ontty == NOTTY)
534 mhl_format (char *file, int length, int width)
538 char *ap, buffer[BUFSIZ], name[NAMESZ];
542 static dev_t dev = 0;
543 static ino_t ino = 0;
544 static time_t mtime = 0;
547 if (stat (etcpath (file), &st) != NOTOK
548 && mtime == st.st_mtime
553 free_queue (&fmthd, &fmttl);
556 if ((fp = fopen (etcpath (file), "r")) == NULL)
557 adios (file, "unable to open format file");
559 if (fstat (fileno (fp), &st) != NOTOK) {
565 global.c_ovtxt = global.c_nfs = NULL;
569 if ((i = sc_width ()) > 5)
571 global.c_cwidth = -1;
572 if ((i = sc_length ()) > 5)
573 global.c_length = i - 1;
574 global.c_flags = BELL; /* BELL is default */
575 *(ip = ignores) = NULL;
577 while (vfgets (fp, &ap) == OK) {
582 if ((cp = strchr(bp, '\n')))
586 c1 = add_queue (&fmthd, &fmttl, NULL, bp + 1, CLEARTEXT);
591 strncpy (name, parse(), sizeof(name));
597 * Split this list of fields to ignore, and copy
598 * it to the end of the current "ignores" list.
600 if (!mh_strcasecmp (name, "ignores")) {
601 char **tmparray, **p;
604 /* split the fields */
605 tmparray = brkstring (getcpy (++parptr), ",", NULL);
607 /* count number of fields split */
612 /* copy pointers to split fields to ignores array */
613 ip = copyip (tmparray, ip, MAXARGS - num_ignores);
619 if (evalvar (&global))
620 adios (NULL, "format file syntax error: %s", bp);
627 c1 = add_queue (&fmthd, &fmttl, name, NULL, INIT);
628 while (*parptr == ':' || *parptr == ',') {
631 adios (NULL, "format file syntax error: %s", bp);
633 if (!c1->c_nfs && global.c_nfs) {
634 if (c1->c_flags & DATEFMT) {
635 if (global.c_flags & DATEFMT)
636 c1->c_nfs = getcpy (global.c_nfs);
639 if (c1->c_flags & ADDRFMT) {
640 if (global.c_flags & ADDRFMT)
641 c1->c_nfs = getcpy (global.c_nfs);
647 adios (NULL, "format file syntax error: %s", bp);
653 for (c1 = fmthd; c1; c1 = c1->c_next) {
654 fprintf (stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n",
655 c1->c_name, c1->c_text, c1->c_ovtxt);
656 fprintf (stderr, "\tnfs=0x%x fmt=0x%x\n",
657 (unsigned int)(unsigned long) c1->c_nfs,
658 (unsigned int)(unsigned long) c1->c_fmt);
659 fprintf (stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d length=%d\n",
660 c1->c_offset, c1->c_ovoff, c1->c_width,
661 c1->c_cwidth, c1->c_length);
662 fprintf (stderr, "\tflags=%s\n",
663 snprintb (buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
669 global.c_flags |= CLEARSCR;
672 global.c_flags &= ~CLEARSCR;
675 switch (bellflg) { /* command line may override format file */
677 global.c_flags |= BELL;
680 global.c_flags &= ~BELL;
685 global.c_length = length;
687 global.c_width = width;
688 if (global.c_length < 5)
689 global.c_length = 10000;
690 if (global.c_width < 5)
691 global.c_width = 10000;
696 evalvar (struct mcomp *c1)
698 char *cp, name[NAMESZ];
703 strncpy (name, parse(), sizeof(name));
705 if (!mh_strcasecmp (name, "component")) {
706 if (ptos (name, &c1->c_text))
708 c1->c_flags &= ~NOCOMPONENT;
712 if (!mh_strcasecmp (name, "overflowtext"))
713 return ptos (name, &c1->c_ovtxt);
715 if (!mh_strcasecmp (name, "formatfield")) {
718 if (ptos (name, &cp))
720 nfs = new_fs (NULL, NULL, cp);
721 c1->c_nfs = getcpy (nfs);
722 c1->c_flags |= FORMAT;
726 if (!mh_strcasecmp (name, "decode")) {
729 nfs = new_fs (NULL, NULL, "%(decode{text})");
730 c1->c_nfs = getcpy (nfs);
731 c1->c_flags |= FORMAT;
735 if (!mh_strcasecmp (name, "offset"))
736 return ptoi (name, &c1->c_offset);
737 if (!mh_strcasecmp (name, "overflowoffset"))
738 return ptoi (name, &c1->c_ovoff);
739 if (!mh_strcasecmp (name, "width"))
740 return ptoi (name, &c1->c_width);
741 if (!mh_strcasecmp (name, "compwidth"))
742 return ptoi (name, &c1->c_cwidth);
743 if (!mh_strcasecmp (name, "length"))
744 return ptoi (name, &c1->c_length);
745 if (!mh_strcasecmp (name, "nodashstuffing"))
746 return (dashstuff = -1);
748 for (ap = triples; ap->t_name; ap++)
749 if (!mh_strcasecmp (ap->t_name, name)) {
750 c1->c_flags |= ap->t_on;
751 c1->c_flags &= ~ap->t_off;
755 if (!mh_strcasecmp (name, "formatarg")) {
759 if (ptos (name, &cp))
761 nfs = new_fs (NULL, NULL, cp);
763 rc = compileargs(c1, nfs);
774 ptoi (char *name, int *i)
778 if (*parptr++ != '=' || !*(cp = parse ())) {
779 advise (NULL, "missing argument to variable %s", name);
789 ptos (char *name, char **s)
793 if (*parptr++ != '=') {
794 advise (NULL, "missing argument to variable %s", name);
798 if (*parptr != '"') {
800 *parptr && *parptr != ':' && *parptr != ',';
804 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
805 if (*parptr == QUOTE)
812 if ((*parptr = c) == '"')
823 static char result[NAMESZ];
825 for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
844 process (char *folder, char *fname, int ofilen, int ofilec)
851 switch (setjmp (env)) {
854 fp = mhl_action ? (*mhl_action) (fname) : fopen (fname, "r");
856 advise (fname, "unable to open");
864 if (fstat(fileno(fp), &st) == 0) {
865 filesize = st.st_size;
869 cp = folder ? concat (folder, ":", fname, NULL) : getcpy (fname);
871 SIGNAL (SIGINT, intrser);
872 mhlfile (fp, cp, ofilen, ofilec); /* FALL THROUGH! */
876 SIGNAL (SIGINT, SIG_IGN);
877 if (mhl_action == NULL && fp != stdin)
881 free (holder.c_text);
882 holder.c_text = NULL;
884 free_queue (&msghd, &msgtl);
885 for (c1 = fmthd; c1; c1 = c1->c_next)
886 c1->c_flags &= ~HDROUTPUT;
895 mhlfile (FILE *fp, char *mname, int ofilen, int ofilec)
898 struct mcomp *c1, *c2, *c3;
899 char **ip, name[NAMESZ], buf[BUFSIZ];
903 printf ("%s", ofilen == 1 ? delim3 : delim4);
905 printf ("\n-------");
907 printf (" Forwarded Message%s", ofilec > 1 ? "s" : "");
909 printf (" Message %d", ofilen);
917 if ((global.c_flags & CLEARSCR))
922 printf (">>> %s\n\n", mname);
927 strncpy (buf, "\n", sizeof(buf));
929 if (SOprintf ("Press <return> to list \"%s\"...", mname)) {
932 printf ("Press <return> to list \"%s\"...", mname);
936 read (fileno (stdout), buf, sizeof(buf));
938 if (strchr(buf, '\n')) {
939 if ((global.c_flags & CLEARSCR))
953 printf (">>> %s\n\n", mname);
959 for (state = FLD;;) {
960 switch (state = m_getfld (state, name, buf, sizeof(buf), fp)) {
963 bucket = checkcomp(name, buf);
964 for (ip = ignores; *ip; ip++)
965 if (!mh_strcasecmp (name, *ip)) {
966 while (state == FLDPLUS) {
967 state = m_getfld (state, name, buf, sizeof(buf), fp);
968 addcomp(bucket, name, buf);
975 for (c2 = fmthd; c2; c2 = c2->c_next)
976 if (!mh_strcasecmp (c2->c_name, name))
979 if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
980 for (c1 = msghd; c1; c1 = c1->c_next)
981 if (!mh_strcasecmp (c1->c_name, c3->c_name)) {
983 mcomp_add (c1->c_flags, buf, c1->c_text);
987 c1 = add_queue (&msghd, &msgtl, name, buf, 0);
988 while (state == FLDPLUS) {
989 state = m_getfld (state, name, buf, sizeof(buf), fp);
990 c1->c_text = add (buf, c1->c_text);
991 addcomp(bucket, name, buf);
994 c1->c_flags |= EXTRA;
1000 for (c1 = fmthd; c1; c1 = c1->c_next) {
1001 if (c1->c_flags & CLEARTEXT) {
1002 putcomp (c1, c1, ONECOMP);
1005 if (!mh_strcasecmp (c1->c_name, "messagename")) {
1006 holder.c_text = concat ("(Message ", mname, ")\n",
1008 putcomp (c1, &holder, ONECOMP);
1009 free (holder.c_text);
1010 holder.c_text = NULL;
1013 if (!mh_strcasecmp (c1->c_name, "extras")) {
1014 for (c2 = msghd; c2; c2 = c2->c_next)
1015 if (c2->c_flags & EXTRA)
1016 putcomp (c1, c2, TWOCOMP);
1019 if (dobody && !mh_strcasecmp (c1->c_name, "body")) {
1020 if (c1->c_flags & FMTFILTER && state == BODY &&
1021 formatproc != NULL) {
1022 filterbody(c1, buf, sizeof(buf), state, fp);
1024 holder.c_text = mh_xmalloc (sizeof(buf));
1025 strncpy (holder.c_text, buf, sizeof(buf));
1026 while (state == BODY) {
1027 putcomp (c1, &holder, BODYCOMP);
1028 state = m_getfld (state, name, holder.c_text,
1031 free (holder.c_text);
1032 holder.c_text = NULL;
1036 for (c2 = msghd; c2; c2 = c2->c_next)
1037 if (!mh_strcasecmp (c2->c_name, c1->c_name)) {
1038 putcomp (c1, c2, ONECOMP);
1039 if (!(c1->c_flags & SPLIT))
1047 advise (NULL, "format error in message %s", mname);
1052 adios (NULL, "getfld() returned %d", state);
1059 mcomp_flags (char *name)
1063 for (ap = pairs; ap->p_name; ap++)
1064 if (!mh_strcasecmp (ap->p_name, name))
1065 return (ap->p_flags);
1072 mcomp_add (long flags, char *s1, char *s2)
1076 if (!(flags & ADDRFMT))
1077 return add (s1, s2);
1079 if (s2 && *(dp = s2 + strlen (s2) - 1) == '\n')
1082 return add (s1, add (",\n", s2));
1089 struct pqpair *pq_next;
1094 mcomp_format (struct mcomp *c1, struct mcomp *c2)
1098 char buffer[BUFSIZ], error[BUFSIZ];
1100 struct pqpair *p, *q;
1102 struct mailname *mp;
1109 dat[3] = sizeof(buffer) - 1;
1111 fmt_compile (c1->c_nfs, &c1->c_fmt);
1113 if (!(c1->c_flags & ADDRFMT)) {
1114 FINDCOMP (cptr, "text");
1117 if ((cp = strrchr(ap, '\n'))) /* drop ending newline */
1121 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1122 /* Don't need to append a newline, dctime() already did */
1123 c2->c_text = getcpy (buffer);
1129 (q = &pq)->pq_next = NULL;
1130 while ((cp = getname (ap))) {
1131 if ((p = (struct pqpair *) calloc ((size_t) 1, sizeof(*p))) == NULL)
1132 adios (NULL, "unable to allocate pqpair memory");
1134 if ((mp = getm (cp, NULL, 0, AD_NAME, error)) == NULL) {
1135 p->pq_text = getcpy (cp);
1136 p->pq_error = getcpy (error);
1138 p->pq_text = getcpy (mp->m_text);
1141 q = (q->pq_next = p);
1144 for (p = pq.pq_next; p; p = q) {
1145 FINDCOMP (cptr, "text");
1147 cptr->c_text = p->pq_text;
1148 FINDCOMP (cptr, "error");
1150 cptr->c_text = p->pq_error;
1152 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1155 c2->c_text = add (",\n", c2->c_text);
1156 if (*(cp = buffer + strlen (buffer) - 1) == '\n')
1158 c2->c_text = add (buffer, c2->c_text);
1168 c2->c_text = add ("\n", c2->c_text);
1173 static struct mcomp *
1174 add_queue (struct mcomp **head, struct mcomp **tail, char *name, char *text, int flags)
1178 if ((c1 = (struct mcomp *) calloc ((size_t) 1, sizeof(*c1))) == NULL)
1179 adios (NULL, "unable to allocate comp memory");
1181 c1->c_flags = flags & ~INIT;
1182 if ((c1->c_name = name ? getcpy (name) : NULL))
1183 c1->c_flags |= mcomp_flags (c1->c_name);
1184 c1->c_text = text ? getcpy (text) : NULL;
1187 c1->c_ovtxt = getcpy (global.c_ovtxt);
1188 c1->c_offset = global.c_offset;
1189 c1->c_ovoff = global. c_ovoff;
1190 c1->c_width = c1->c_length = 0;
1191 c1->c_cwidth = global.c_cwidth;
1192 c1->c_flags |= global.c_flags & GFLAGS;
1197 (*tail)->c_next = c1;
1205 free_queue (struct mcomp **head, struct mcomp **tail)
1207 struct mcomp *c1, *c2;
1209 for (c1 = *head; c1; c1 = c2) {
1220 free ((char *) c1->c_fmt);
1222 struct arglist *a1, *a2;
1223 for (a1 = c1->c_f_args; a1; a1 = a2) {
1235 *head = *tail = NULL;
1240 putcomp (struct mcomp *c1, struct mcomp *c2, int flag)
1247 llim = c1->c_length ? c1->c_length : -1;
1248 wid = c1->c_width ? c1->c_width : global.c_width;
1249 ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1251 if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1253 if (wid < ovoff + strlen (ovtxt) + 5)
1254 adios (NULL, "component: %s width(%d) too small for overflow(%d)",
1255 c1->c_name, wid, ovoff + strlen (ovtxt) + 5);
1258 if (c1->c_flags & CLEARTEXT) {
1259 putstr (c1->c_text, c1->c_flags);
1260 putstr ("\n", c1->c_flags);
1264 if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1265 mcomp_format (c1, c2);
1267 if (c1->c_flags & CENTER) {
1268 count = (c1->c_width ? c1->c_width : global.c_width)
1269 - c1->c_offset - strlen (c2->c_text);
1270 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1271 count -= strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1272 lm = c1->c_offset + (count / 2);
1278 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1279 if (c1->c_flags & UPPERCASE) /* uppercase component also */
1280 for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1282 *cp = toupper (*cp);
1283 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1284 if (flag != BODYCOMP) {
1285 putstr (": ", c1->c_flags);
1286 if (!(c1->c_flags & SPLIT))
1287 c1->c_flags |= HDROUTPUT;
1290 if ((count = c1->c_cwidth -
1291 strlen (c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1293 putstr (" ", c1->c_flags);
1296 c1->c_flags |= HDROUTPUT; /* for BODYCOMP */
1300 && !(c2->c_flags & HDROUTPUT)
1301 && !(c2->c_flags & NOCOMPONENT)) {
1302 if (c1->c_flags & UPPERCASE)
1303 for (cp = c2->c_name; *cp; cp++)
1305 *cp = toupper (*cp);
1306 putstr (c2->c_name, c1->c_flags);
1307 putstr (": ", c1->c_flags);
1308 if (!(c1->c_flags & SPLIT))
1309 c2->c_flags |= HDROUTPUT;
1312 if ((count = c1->c_cwidth - strlen (c2->c_name) - 2) > 0)
1314 putstr (" ", c1->c_flags);
1316 if (c1->c_flags & UPPERCASE)
1317 for (cp = c2->c_text; *cp; cp++)
1319 *cp = toupper (*cp);
1323 if (flag == TWOCOMP)
1324 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1325 : (int) strlen (c2->c_name) + 2;
1327 count = (c1->c_cwidth >= 0) ? (size_t) c1->c_cwidth
1328 : strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1330 count += c1->c_offset;
1332 if ((cp = oneline (c2->c_text, c1->c_flags)))
1333 putstr(cp, c1->c_flags);
1335 putstr ("\n", c1->c_flags);
1336 while ((cp = oneline (c2->c_text, c1->c_flags))) {
1338 if (flag == BODYCOMP
1339 && !(c1->c_flags & NOCOMPONENT))
1340 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1342 putstr (cp, c1->c_flags);
1344 putstr ("\n", c1->c_flags);
1346 if (flag == BODYCOMP && term == '\n')
1347 c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */
1352 oneline (char *stuff, long flags)
1360 return (onelp = NULL);
1364 if (flags & COMPRESS) {
1365 for (spc = 1, cp = ret; *onelp; onelp++)
1366 if (isspace (*onelp)) {
1367 if (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT))) {
1386 while (*onelp && *onelp != '\n')
1388 if (*onelp == '\n') {
1392 if (flags & LEFTADJUST)
1393 while (*ret == ' ' || *ret == '\t')
1396 if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1404 putstr (char *string, long flags)
1406 if (!column && lm > 0) {
1409 putch ('\t', flags);
1419 putch (*string++, flags);
1424 putch (char ch, long flags)
1437 if (ontty != ISTTY || row != global.c_length)
1439 if (global.c_flags & BELL)
1443 read (fileno (stdout), buf, sizeof(buf));
1444 if (strchr(buf, '\n')) {
1445 if (global.c_flags & CLEARSCR)
1450 row = global.c_length / 3;
1469 * If we are forwarding this message, and the first
1470 * column contains a dash, then add a dash and a space.
1472 if (column == 0 && forwflg && (dashstuff >= 0) && ch == '-') {
1481 if (column >= wid && (flags & NOWRAP) == 0) {
1482 putch ('\n', flags);
1485 putstr (ovtxt ? ovtxt : "", flags);
1501 longjmp (env, DONE);
1526 mhlsbr (int argc, char **argv, FILE *(*action)())
1528 SIGNAL_HANDLER istat = NULL, pstat = NULL, qstat = NULL;
1532 switch (setjmp (mhlenv)) {
1535 sleepsw = 0; /* XXX */
1536 bellflg = clearflg = forwflg = forwall = exitstat = 0;
1539 mhl_action = action;
1542 * If signal is at default action, then start ignoring
1543 * it, else let it set to its current action.
1545 if ((istat = SIGNAL (SIGINT, SIG_IGN)) != SIG_DFL)
1546 SIGNAL (SIGINT, istat);
1547 if ((qstat = SIGNAL (SIGQUIT, SIG_IGN)) != SIG_DFL)
1548 SIGNAL (SIGQUIT, qstat);
1549 pstat = SIGNAL (SIGPIPE, pipeser);
1550 mhl (argc, argv); /* FALL THROUGH! */
1553 SIGNAL (SIGINT, istat);
1554 SIGNAL (SIGQUIT, qstat);
1555 SIGNAL (SIGPIPE, SIG_IGN);/* should probably change to block instead */
1558 SIGNAL (SIGPIPE, pstat);
1560 if (holder.c_text) {
1561 free (holder.c_text);
1562 holder.c_text = NULL;
1564 free_queue (&msghd, &msgtl);
1565 for (c1 = fmthd; c1; c1 = c1->c_next)
1566 c1->c_flags &= ~HDROUTPUT;
1575 mhladios (char *what, char *fmt, ...)
1580 advertise (what, NULL, fmt, ap);
1587 mhldone (int status)
1591 longjmp (mhlenv, DONE);
1597 static int m_pid = NOTOK;
1598 static int sd = NOTOK;
1601 m_popen (char *name)
1605 if (mhl_action && (sd = dup (fileno (stdout))) == NOTOK)
1606 adios ("standard output", "unable to dup()");
1608 if (pipe (pd) == NOTOK)
1609 adios ("pipe", "unable to");
1611 switch (m_pid = vfork()) {
1613 adios ("fork", "unable to");
1616 SIGNAL (SIGINT, SIG_DFL);
1617 SIGNAL (SIGQUIT, SIG_DFL);
1620 if (pd[0] != fileno (stdin)) {
1621 dup2 (pd[0], fileno (stdin));
1624 execlp (name, r1bindex (name, '/'), NULL);
1625 fprintf (stderr, "unable to exec ");
1631 if (pd[1] != fileno (stdout)) {
1632 dup2 (pd[1], fileno (stdout));
1647 if (dup2 (sd, fileno (stdout)) == NOTOK)
1648 adios ("standard output", "unable to dup2()");
1657 pidwait (m_pid, OK);
1663 * Compile a format string and add it to the list of arguments used by
1666 * This deserves some explanation. Here's the deal:
1668 * We want to keep track of components used as arguments by formatproc,
1669 * but the hash table is reset every time fmt_compile is called. So we
1670 * iterate through the function list looking for things that use components
1671 * and save the name. And because we might get the same components used
1672 * by different arguments we need to keep track to every reference of
1673 * every component so we can add them when the message is processed. So
1674 * we compile the argument string now (to get the components we use) and
1675 * save them for later.
1679 compileargs (struct mcomp *c1, char *nfs)
1682 struct arglist *args;
1687 i = fmt_compile(nfs, &fmt);
1690 * Search through and mark any components that are address components
1693 for (ap = addrcomps; *ap; ap++) {
1694 FINDCOMP (cptr, *ap);
1696 cptr->c_type |= CT_ADDR;
1699 args = (struct arglist *) mh_xmalloc(sizeof(struct arglist));
1702 adios (NULL, "Unable to allocate formatproc args storage");
1705 args->a_nfs = format_string;
1706 args->a_next = NULL;
1708 format_string = NULL;
1711 c1->c_f_tail->a_next = args;
1713 c1->c_f_tail = args;
1716 c1->c_f_args = args;
1722 * If wantcomp ever changes size, we need to change the size
1723 * of mhlcomp as well
1726 for (i = 0; i < sizeof(wantcomp)/sizeof(wantcomp[0]); i++) {
1730 for (c = mhlcomp[i]; c->c_next != NULL; c = c->c_next)
1732 c->c_next = wantcomp[i];
1734 mhlcomp[i] = wantcomp[i];
1742 * Check to see if we are interested in a component. If we are, save
1747 checkcomp(char *name, char *buf)
1751 int bucket = CHASH(name);
1754 if ((c = mhlcomp[bucket])) {
1756 if (mh_strcasecmp(name, c->c_name) == 0) {
1759 c->c_text = strdup(buf);
1761 i = strlen(cp = c->c_text) - 1;
1762 if (cp[i] == '\n') {
1763 if (c->c_type & CT_ADDR) {
1765 cp = add (",\n\t", cp);
1767 cp = add ("\t", cp);
1770 c->c_text = add (buf, cp);
1773 } while ((c = c->c_next));
1776 return found ? bucket : -1;
1780 * Add text to an existing component
1784 addcomp(int bucket, char *name, char *buf)
1789 c = mhlcomp[bucket];
1791 if (mh_strcasecmp(name, c->c_name) == 0)
1792 c->c_text = add (buf, c->c_text);
1793 } while ((c = c->c_next));
1798 * Free up saved component structures
1804 struct comp *c1, *c2;
1807 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) {
1808 if ((c1 = mhlcomp[i]))
1809 for (; c1; c1 = c2) {
1819 * Just free up the component text.
1828 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) {
1829 if ((c1 = mhlcomp[i]))
1830 for (; c1; c1 = c1->c_next) {
1840 * Filter the body of a message through a specified format program
1844 filterbody (struct mcomp *c1, char *buf, int bufsz, int state, FILE *fp)
1846 struct mcomp holder;
1848 int fdinput[2], fdoutput[2], waitstat;
1850 pid_t writerpid, filterpid;
1853 * Create pipes so we can communicate with our filter process.
1856 if (pipe(fdinput) < 0) {
1857 adios(NULL, "Unable to create input pipe");
1860 if (pipe(fdoutput) < 0) {
1861 adios(NULL, "Unable to create output pipe");
1865 * Here's what we're doing to do.
1867 * - Fork ourselves and start writing data to the write side of the
1868 * input pipe (fdinput[1]).
1870 * - Fork and exec our filter program. We set the standard input of
1871 * our filter program to be the read side of our input pipe (fdinput[0]).
1872 * Standard output is set to the write side of our output pipe
1875 * - We read from the read side of the output pipe (fdoutput[0]).
1877 * We're forking because that's the simplest way to prevent any deadlocks.
1878 * (without doing something like switching to non-blocking I/O and using
1879 * select or poll, and I'm not interested in doing that).
1882 switch (writerpid = fork()) {
1885 * Our child process - just write to the filter input (fdinput[1]).
1886 * Close all other descriptors that we don't need.
1894 * Call m_getfld() until we're no longer in the BODY state
1897 while (state == BODY) {
1898 write(fdinput[1], buf, strlen(buf));
1899 state = m_getfld(state, name, buf, bufsz, fp);
1903 * We should be done; time to exit.
1908 * Make sure we call _exit(), otherwise we may flush out the stdio
1909 * buffers that we have duplicated from the parent.
1914 adios(NULL, "Unable to fork for filter writer process");
1919 * Fork and exec() our filter program, after redirecting standard in
1920 * and standard out appropriately.
1923 switch (filterpid = fork()) {
1930 * Allocate an argument array for us
1933 args = (char **) mh_xmalloc((c1->c_nargs + 2) * sizeof(char *));
1934 args[0] = formatproc;
1935 args[c1->c_nargs + 1] = NULL;
1943 * Pull out each argument and scan them.
1946 for (a = c1->c_f_args, i = 1; a != NULL; a = a->a_next, i++) {
1947 args[i] = mh_xmalloc(BUFSIZ);
1948 fmt_scan(a->a_fmt, args[i], BUFSIZ, dat);
1950 * fmt_scan likes to put a trailing newline at the end of the
1951 * format string. If we have one, get rid of it.
1953 s = strlen(args[i]);
1954 if (args[i][s - 1] == '\n')
1955 args[i][s - 1] = '\0';
1958 if (dup2(fdinput[0], STDIN_FILENO) < 0) {
1959 adios("formatproc", "Unable to dup2() standard input");
1961 if (dup2(fdoutput[1], STDOUT_FILENO) < 0) {
1962 adios("formatproc", "Unable to dup2() standard output");
1966 * Close everything (especially the old input and output
1967 * descriptors, since they've been dup'd to stdin and stdout),
1968 * and exec the formatproc.
1976 execvp(formatproc, args);
1978 adios(formatproc, "Unable to execute filter");
1983 adios(NULL, "Unable to fork format program");
1987 * Close everything except our reader (fdoutput[0]);
1995 * As we read in this data, send it to putcomp
1998 holder.c_text = buf;
2000 while ((cc = read(fdoutput[0], buf, bufsz - 1)) > 0) {
2002 putcomp(c1, &holder, BODYCOMP);
2006 adios(NULL, "reading from formatproc");
2010 * See if we got any errors along the way. I'm a little leery of calling
2011 * waitpid() without WNOHANG, but it seems to be the most correct solution.
2014 if (waitpid(filterpid, &waitstat, 0) < 0) {
2015 if (errno != ECHILD) {
2016 adios("filterproc", "Unable to determine status");
2019 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
2020 pidstatus(waitstat, stderr, "filterproc");
2024 if (waitpid(writerpid, &waitstat, 0) < 0) {
2025 if (errno != ECHILD) {
2026 adios("writer process", "Unable to determine status");
2030 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
2031 pidstatus(waitstat, stderr, "writer process");