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 { "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 },
95 { "fmtproc program", 0 },
101 #define NOCOMPONENT 0x000001 /* don't show component name */
102 #define UPPERCASE 0x000002 /* display in all upper case */
103 #define CENTER 0x000004 /* center line */
104 #define CLEARTEXT 0x000008 /* cleartext */
105 #define EXTRA 0x000010 /* an "extra" component */
106 #define HDROUTPUT 0x000020 /* already output */
107 #define CLEARSCR 0x000040 /* clear screen */
108 #define LEFTADJUST 0x000080 /* left justify multiple lines */
109 #define COMPRESS 0x000100 /* compress text */
110 #define ADDRFMT 0x000200 /* contains addresses */
111 #define BELL 0x000400 /* sound bell at EOP */
112 #define DATEFMT 0x000800 /* contains dates */
113 #define FORMAT 0x001000 /* parse address/date/RFC-2047 field */
114 #define INIT 0x002000 /* initialize component */
115 #define FACEFMT 0x004000 /* contains face */
116 #define FACEDFLT 0x008000 /* default for face */
117 #define SPLIT 0x010000 /* split headers (don't concatenate) */
118 #define NONEWLINE 0x020000 /* don't write trailing newline */
119 #define NOWRAP 0x040000 /* Don't wrap lines ever */
120 #define FMTFILTER 0x080000 /* Filter through format filter */
121 #define LBITS "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07CLEARSCR\010LEFTADJUST\011COMPRESS\012ADDRFMT\013BELL\014DATEFMT\015FORMAT\016INIT\017FACEFMT\020FACEDFLT\021SPLIT\022NONEWLINE\023NOWRAP\024FMTFILTER"
122 #define GFLAGS (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT | NOWRAP)
125 * A list of format arguments
129 struct format *a_fmt;
131 struct arglist *a_next;
135 char *c_name; /* component name */
136 char *c_text; /* component text */
137 char *c_ovtxt; /* text overflow indicator */
138 char *c_nfs; /* iff FORMAT */
139 struct format *c_fmt; /* .. */
140 char *c_face; /* face designator */
141 int c_offset; /* left margin indentation */
142 int c_ovoff; /* overflow indentation */
143 int c_width; /* width of field */
144 int c_cwidth; /* width of component */
145 int c_length; /* length in lines */
147 struct arglist *c_f_args; /* Argument list for filter*/
148 struct arglist *c_f_tail; /* Pointer to tail of list */
149 int c_nargs; /* Number of arguments */
150 struct mcomp *c_next;
153 static struct mcomp *msghd = NULL;
154 static struct mcomp *msgtl = NULL;
155 static struct mcomp *fmthd = NULL;
156 static struct mcomp *fmttl = NULL;
158 static struct mcomp global = {
159 NULL, NULL, NULL, NULL, NULL, NULL, 0, -1, 80, -1, 40, BELL, NULL, NULL,
163 static struct mcomp holder = {
164 NULL, NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, NOCOMPONENT, NULL, NULL,
173 static struct pair pairs[] = {
175 { "From", ADDRFMT|FACEDFLT },
176 { "Sender", ADDRFMT },
177 { "Reply-To", ADDRFMT },
181 { "Resent-Date", DATEFMT },
182 { "Resent-From", ADDRFMT },
183 { "Resent-Sender", ADDRFMT },
184 { "Resent-Reply-To", ADDRFMT },
185 { "Resent-To", ADDRFMT },
186 { "Resent-cc", ADDRFMT },
187 { "Resent-Bcc", ADDRFMT },
198 static struct triple triples[] = {
199 { "nocomponent", NOCOMPONENT, 0 },
200 { "uppercase", UPPERCASE, 0 },
201 { "nouppercase", 0, UPPERCASE },
202 { "center", CENTER, 0 },
203 { "nocenter", 0, CENTER },
204 { "clearscreen", CLEARSCR, 0 },
205 { "noclearscreen", 0, CLEARSCR },
206 { "noclear", 0, CLEARSCR },
207 { "leftadjust", LEFTADJUST, 0 },
208 { "noleftadjust", 0, LEFTADJUST },
209 { "compress", COMPRESS, 0 },
210 { "nocompress", 0, COMPRESS },
211 { "split", SPLIT, 0 },
212 { "nosplit", 0, SPLIT },
213 { "addrfield", ADDRFMT, DATEFMT },
215 { "nobell", 0, BELL },
216 { "datefield", DATEFMT, ADDRFMT },
217 { "newline", 0, NONEWLINE },
218 { "nonewline", NONEWLINE, 0 },
219 { "wrap", 0, NOWRAP },
220 { "nowrap", NOWRAP, 0 },
221 { "format", FMTFILTER, 0 },
222 { "noformat", 0, FMTFILTER },
226 static char *addrcomps[] = {
243 static int bellflg = 0;
244 static int clearflg = 0;
245 static int dashstuff = 0;
246 static int dobody = 1;
247 static int forwflg = 0;
248 static int forwall = 0;
250 static int sleepsw = NOTOK;
252 static char *digest = NULL;
253 static int volume = 0;
254 static int issue = 0;
256 static int exitstat = 0;
257 static int mhldebug = 0;
259 static int filesize = 0;
264 static int ontty = NOTTY;
267 static unsigned int column;
273 static unsigned int wid;
277 static unsigned char *onelp;
281 static int num_ignores = 0;
282 static char *ignores[MAXARGS];
285 static jmp_buf mhlenv;
287 static char delim3[] = /* from forw.c */
288 "\n----------------------------------------------------------------------\n\n";
289 static char delim4[] = "\n------------------------------\n\n";
291 static FILE *(*mhl_action) () = (FILE *(*) ()) 0;
293 static struct comp *mhlcomp[128];
296 * Redefine a couple of functions.
297 * These are undefined later in the code.
299 #define adios mhladios
305 static void mhl_format (char *, int, int);
306 static int evalvar (struct mcomp *);
307 static int ptoi (char *, int *);
308 static int ptos (char *, char **);
309 static char *parse (void);
310 static void process (char *, char *, int, int);
311 static void mhlfile (FILE *, char *, int, int);
312 static int mcomp_flags (char *);
313 static char *mcomp_add (long, char *, char *);
314 static void mcomp_format (struct mcomp *, struct mcomp *);
315 static struct mcomp *add_queue (struct mcomp **, struct mcomp **, char *, char *, int);
316 static void free_queue (struct mcomp **, struct mcomp **);
317 static void putcomp (struct mcomp *, struct mcomp *, int);
318 static char *oneline (char *, long);
319 static void putstr (char *, long);
320 static void putch (char, long);
321 static void intrser (int);
322 static void pipeser (int);
323 static void quitser (int);
324 static void face_format (struct mcomp *);
325 static int doface (struct mcomp *);
326 static void mhladios (char *, char *, ...);
327 static void mhldone (int);
328 static void m_popen (char *);
329 static void filterbody (struct mcomp *, char *, int, int, FILE *);
330 static int compileargs (struct mcomp *, char *);
331 static int checkcomp (char *, char *);
332 static void addcomp (int, char *, char *);
333 static void freecomps (void);
334 static void freecomptext (void);
338 mhl (int argc, char **argv)
340 int length = 0, nomore = 0;
341 unsigned int i, vecp = 0;;
343 char *cp, *folder = NULL, *form = NULL;
344 char buf[BUFSIZ], *files[MAXARGS];
345 char **argp, **arguments;
347 invo_name = r1bindex (argv[0], '/');
349 /* read user profile/context */
352 arguments = getarguments (invo_name, argc, argv, 1);
355 if ((cp = getenv ("MHLDEBUG")) && *cp)
358 if ((cp = getenv ("FACEPROC")))
361 while ((cp = *argp++)) {
363 switch (smatch (++cp, mhlswitches)) {
365 ambigsw (cp, mhlswitches);
368 adios (NULL, "-%s unknown\n", cp);
371 snprintf (buf, sizeof(buf), "%s [switches] [files ...]", invo_name);
372 print_help (buf, mhlswitches, 1);
375 print_version(invo_name);
393 if (!(folder = *argp++) || *folder == '-')
394 adios (NULL, "missing argument to %s", argp[-2]);
397 if (!(form = *argp++) || *form == '-')
398 adios (NULL, "missing argument to %s", argp[-2]);
402 if (!(faceproc = *argp++) || *faceproc == '-')
403 adios (NULL, "missing argument to %s", argp[-2]);
409 if (!(cp = *argp++) || *cp == '-')
410 adios (NULL, "missing argument to %s", argp[-2]);
411 sleepsw = atoi (cp);/* ZERO ok! */
415 if (!(moreproc = *argp++) || *moreproc == '-')
416 adios (NULL, "missing argument to %s", argp[-2]);
423 if (!(formatproc = *argp++) || *formatproc == '-')
424 adios (NULL, "missing argument to %s", argp[-2]);
431 if (!(cp = *argp++) || *cp == '-')
432 adios (NULL, "missing argument to %s", argp[-2]);
433 if ((length = atoi (cp)) < 1)
434 adios (NULL, "bad argument %s %s", argp[-2], cp);
437 if (!(cp = *argp++) || *cp == '-')
438 adios (NULL, "missing argument to %s", argp[-2]);
439 if ((width = atoi (cp)) < 1)
440 adios (NULL, "bad argument %s %s", argp[-2], cp);
444 if (!(digest = *argp++) || *digest == '-')
445 adios (NULL, "missing argument to %s", argp[-2]);
448 if (!(cp = *argp++) || *cp == '-')
449 adios (NULL, "missing argument to %s", argp[-2]);
450 if ((issue = atoi (cp)) < 1)
451 adios (NULL, "bad argument %s %s", argp[-2], cp);
454 if (!(cp = *argp++) || *cp == '-')
455 adios (NULL, "missing argument to %s", argp[-2]);
456 if ((volume = atoi (cp)) < 1)
457 adios (NULL, "bad argument %s %s", argp[-2], cp);
461 forwall++; /* fall */
464 clearflg = -1;/* XXX */
468 dashstuff = 1; /* trinary logic */
471 dashstuff = -1; /* trinary logic */
483 folder = getenv ("mhfolder");
485 if (isatty (fileno (stdout))) {
486 if (!nomore && !sc_hardcopy() && moreproc && *moreproc != '\0') {
488 SIGNAL (SIGINT, SIG_IGN);
489 SIGNAL2 (SIGQUIT, quitser);
491 SIGNAL2 (SIGPIPE, pipeser);
495 SIGNAL (SIGINT, SIG_IGN);
496 SIGNAL2 (SIGQUIT, quitser);
503 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++)
506 mhl_format (form ? form : mhlformat, length, width);
509 process (folder, NULL, 1, vecp = 1);
511 for (i = 0; i < vecp; i++)
512 process (folder, files[i], i + 1, vecp);
519 printf ("%s", delim4);
521 snprintf (buf, sizeof(buf), "End of %s Digest\n", digest);
523 snprintf (buf, sizeof(buf), "End of %s Digest [Volume %d Issue %d]\n",
524 digest, volume, issue);
527 for (cp = buf + i; i > 1; i--)
534 printf ("\n------- End of Forwarded Message%s\n",
535 vecp > 1 ? "s" : "");
540 adios("output", "error writing");
543 if (clearflg > 0 && ontty == NOTTY)
554 mhl_format (char *file, int length, int width)
558 char *ap, buffer[BUFSIZ], name[NAMESZ];
562 static dev_t dev = 0;
563 static ino_t ino = 0;
564 static time_t mtime = 0;
567 if (stat (etcpath (file), &st) != NOTOK
568 && mtime == st.st_mtime
573 free_queue (&fmthd, &fmttl);
576 if ((fp = fopen (etcpath (file), "r")) == NULL)
577 adios (file, "unable to open format file");
579 if (fstat (fileno (fp), &st) != NOTOK) {
585 global.c_ovtxt = global.c_nfs = NULL;
589 if ((i = sc_width ()) > 5)
591 global.c_cwidth = -1;
592 if ((i = sc_length ()) > 5)
593 global.c_length = i - 1;
594 global.c_flags = BELL; /* BELL is default */
595 *(ip = ignores) = NULL;
597 while (vfgets (fp, &ap) == OK) {
602 if ((cp = strchr(bp, '\n')))
606 c1 = add_queue (&fmthd, &fmttl, NULL, bp + 1, CLEARTEXT);
611 strncpy (name, parse(), sizeof(name));
617 * Split this list of fields to ignore, and copy
618 * it to the end of the current "ignores" list.
620 if (!mh_strcasecmp (name, "ignores")) {
621 char **tmparray, **p;
624 /* split the fields */
625 tmparray = brkstring (getcpy (++parptr), ",", NULL);
627 /* count number of fields split */
632 /* copy pointers to split fields to ignores array */
633 ip = copyip (tmparray, ip, MAXARGS - num_ignores);
639 if (evalvar (&global))
640 adios (NULL, "format file syntax error: %s", bp);
647 c1 = add_queue (&fmthd, &fmttl, name, NULL, INIT);
648 while (*parptr == ':' || *parptr == ',') {
651 adios (NULL, "format file syntax error: %s", bp);
653 if (!c1->c_nfs && global.c_nfs) {
654 if (c1->c_flags & DATEFMT) {
655 if (global.c_flags & DATEFMT)
656 c1->c_nfs = getcpy (global.c_nfs);
659 if (c1->c_flags & ADDRFMT) {
660 if (global.c_flags & ADDRFMT)
661 c1->c_nfs = getcpy (global.c_nfs);
667 adios (NULL, "format file syntax error: %s", bp);
673 for (c1 = fmthd; c1; c1 = c1->c_next) {
674 fprintf (stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n",
675 c1->c_name, c1->c_text, c1->c_ovtxt);
676 fprintf (stderr, "\tnfs=0x%x fmt=0x%x\n",
677 (unsigned int)(unsigned long) c1->c_nfs,
678 (unsigned int)(unsigned long) c1->c_fmt);
679 fprintf (stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d length=%d\n",
680 c1->c_offset, c1->c_ovoff, c1->c_width,
681 c1->c_cwidth, c1->c_length);
682 fprintf (stderr, "\tflags=%s\n",
683 snprintb (buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
689 global.c_flags |= CLEARSCR;
692 global.c_flags &= ~CLEARSCR;
695 switch (bellflg) { /* command line may override format file */
697 global.c_flags |= BELL;
700 global.c_flags &= ~BELL;
705 global.c_length = length;
707 global.c_width = width;
708 if (global.c_length < 5)
709 global.c_length = 10000;
710 if (global.c_width < 5)
711 global.c_width = 10000;
716 evalvar (struct mcomp *c1)
718 char *cp, name[NAMESZ];
723 strncpy (name, parse(), sizeof(name));
725 if (!mh_strcasecmp (name, "component")) {
726 if (ptos (name, &c1->c_text))
728 c1->c_flags &= ~NOCOMPONENT;
732 if (!mh_strcasecmp (name, "overflowtext"))
733 return ptos (name, &c1->c_ovtxt);
735 if (!mh_strcasecmp (name, "formatfield")) {
738 if (ptos (name, &cp))
740 nfs = new_fs (NULL, NULL, cp);
741 c1->c_nfs = getcpy (nfs);
742 c1->c_flags |= FORMAT;
746 if (!mh_strcasecmp (name, "decode")) {
749 nfs = new_fs (NULL, NULL, "%(decode{text})");
750 c1->c_nfs = getcpy (nfs);
751 c1->c_flags |= FORMAT;
755 if (!mh_strcasecmp (name, "offset"))
756 return ptoi (name, &c1->c_offset);
757 if (!mh_strcasecmp (name, "overflowoffset"))
758 return ptoi (name, &c1->c_ovoff);
759 if (!mh_strcasecmp (name, "width"))
760 return ptoi (name, &c1->c_width);
761 if (!mh_strcasecmp (name, "compwidth"))
762 return ptoi (name, &c1->c_cwidth);
763 if (!mh_strcasecmp (name, "length"))
764 return ptoi (name, &c1->c_length);
765 if (!mh_strcasecmp (name, "nodashstuffing"))
766 return (dashstuff = -1);
768 for (ap = triples; ap->t_name; ap++)
769 if (!mh_strcasecmp (ap->t_name, name)) {
770 c1->c_flags |= ap->t_on;
771 c1->c_flags &= ~ap->t_off;
775 if (!mh_strcasecmp (name, "formatarg")) {
779 if (ptos (name, &cp))
781 nfs = new_fs (NULL, NULL, cp);
783 rc = compileargs(c1, nfs);
794 ptoi (char *name, int *i)
798 if (*parptr++ != '=' || !*(cp = parse ())) {
799 advise (NULL, "missing argument to variable %s", name);
809 ptos (char *name, char **s)
813 if (*parptr++ != '=') {
814 advise (NULL, "missing argument to variable %s", name);
818 if (*parptr != '"') {
820 *parptr && *parptr != ':' && *parptr != ',';
824 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
825 if (*parptr == QUOTE)
832 if ((*parptr = c) == '"')
843 static char result[NAMESZ];
845 for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
864 process (char *folder, char *fname, int ofilen, int ofilec)
871 switch (setjmp (env)) {
874 fp = mhl_action ? (*mhl_action) (fname) : fopen (fname, "r");
876 advise (fname, "unable to open");
884 if (fstat(fileno(fp), &st) == 0) {
885 filesize = st.st_size;
889 cp = folder ? concat (folder, ":", fname, NULL) : getcpy (fname);
891 SIGNAL (SIGINT, intrser);
892 mhlfile (fp, cp, ofilen, ofilec); /* FALL THROUGH! */
896 SIGNAL (SIGINT, SIG_IGN);
897 if (mhl_action == NULL && fp != stdin)
901 free (holder.c_text);
902 holder.c_text = NULL;
904 free_queue (&msghd, &msgtl);
905 for (c1 = fmthd; c1; c1 = c1->c_next)
906 c1->c_flags &= ~HDROUTPUT;
915 mhlfile (FILE *fp, char *mname, int ofilen, int ofilec)
918 struct mcomp *c1, *c2, *c3;
919 char **ip, name[NAMESZ], buf[BUFSIZ];
923 printf ("%s", ofilen == 1 ? delim3 : delim4);
925 printf ("\n-------");
927 printf (" Forwarded Message%s", ofilec > 1 ? "s" : "");
929 printf (" Message %d", ofilen);
937 if ((global.c_flags & CLEARSCR))
942 printf (">>> %s\n\n", mname);
947 strncpy (buf, "\n", sizeof(buf));
949 if (SOprintf ("Press <return> to list \"%s\"...", mname)) {
952 printf ("Press <return> to list \"%s\"...", mname);
956 read (fileno (stdout), buf, sizeof(buf));
958 if (strchr(buf, '\n')) {
959 if ((global.c_flags & CLEARSCR))
973 printf (">>> %s\n\n", mname);
979 for (state = FLD;;) {
980 switch (state = m_getfld (state, name, buf, sizeof(buf), fp)) {
983 bucket = checkcomp(name, buf);
984 for (ip = ignores; *ip; ip++)
985 if (!mh_strcasecmp (name, *ip)) {
986 while (state == FLDPLUS) {
987 state = m_getfld (state, name, buf, sizeof(buf), fp);
988 addcomp(bucket, name, buf);
995 for (c2 = fmthd; c2; c2 = c2->c_next)
996 if (!mh_strcasecmp (c2->c_name, name))
999 if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
1000 for (c1 = msghd; c1; c1 = c1->c_next)
1001 if (!mh_strcasecmp (c1->c_name, c3->c_name)) {
1003 mcomp_add (c1->c_flags, buf, c1->c_text);
1007 c1 = add_queue (&msghd, &msgtl, name, buf, 0);
1008 while (state == FLDPLUS) {
1009 state = m_getfld (state, name, buf, sizeof(buf), fp);
1010 c1->c_text = add (buf, c1->c_text);
1011 addcomp(bucket, name, buf);
1014 c1->c_flags |= EXTRA;
1020 for (c1 = fmthd; c1; c1 = c1->c_next) {
1021 if (c1->c_flags & CLEARTEXT) {
1022 putcomp (c1, c1, ONECOMP);
1025 if (!mh_strcasecmp (c1->c_name, "messagename")) {
1026 holder.c_text = concat ("(Message ", mname, ")\n",
1028 putcomp (c1, &holder, ONECOMP);
1029 free (holder.c_text);
1030 holder.c_text = NULL;
1033 if (!mh_strcasecmp (c1->c_name, "extras")) {
1034 for (c2 = msghd; c2; c2 = c2->c_next)
1035 if (c2->c_flags & EXTRA)
1036 putcomp (c1, c2, TWOCOMP);
1039 if (dobody && !mh_strcasecmp (c1->c_name, "body")) {
1040 if (c1->c_flags & FMTFILTER && state == BODY &&
1041 formatproc != NULL) {
1042 filterbody(c1, buf, sizeof(buf), state, fp);
1044 holder.c_text = mh_xmalloc (sizeof(buf));
1045 strncpy (holder.c_text, buf, sizeof(buf));
1046 while (state == BODY) {
1047 putcomp (c1, &holder, BODYCOMP);
1048 state = m_getfld (state, name, holder.c_text,
1051 free (holder.c_text);
1052 holder.c_text = NULL;
1056 for (c2 = msghd; c2; c2 = c2->c_next)
1057 if (!mh_strcasecmp (c2->c_name, c1->c_name)) {
1058 putcomp (c1, c2, ONECOMP);
1059 if (!(c1->c_flags & SPLIT))
1062 if (faceproc && c2 == NULL && (c1->c_flags & FACEFMT))
1063 for (c2 = msghd; c2; c2 = c2->c_next)
1064 if (c2->c_flags & FACEDFLT) {
1065 if (c2->c_face == NULL)
1067 if ((holder.c_text = c2->c_face)) {
1068 putcomp (c1, &holder, ONECOMP);
1069 holder.c_text = NULL;
1078 advise (NULL, "format error in message %s", mname);
1083 adios (NULL, "getfld() returned %d", state);
1090 mcomp_flags (char *name)
1094 for (ap = pairs; ap->p_name; ap++)
1095 if (!mh_strcasecmp (ap->p_name, name))
1096 return (ap->p_flags);
1103 mcomp_add (long flags, char *s1, char *s2)
1107 if (!(flags & ADDRFMT))
1108 return add (s1, s2);
1110 if (s2 && *(dp = s2 + strlen (s2) - 1) == '\n')
1113 return add (s1, add (",\n", s2));
1120 struct pqpair *pq_next;
1125 mcomp_format (struct mcomp *c1, struct mcomp *c2)
1129 char buffer[BUFSIZ], error[BUFSIZ];
1131 struct pqpair *p, *q;
1133 struct mailname *mp;
1140 dat[3] = sizeof(buffer) - 1;
1142 fmt_compile (c1->c_nfs, &c1->c_fmt);
1144 if (!(c1->c_flags & ADDRFMT)) {
1145 FINDCOMP (cptr, "text");
1148 if ((cp = strrchr(ap, '\n'))) /* drop ending newline */
1152 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1153 /* Don't need to append a newline, dctime() already did */
1154 c2->c_text = getcpy (buffer);
1160 (q = &pq)->pq_next = NULL;
1161 while ((cp = getname (ap))) {
1162 if ((p = (struct pqpair *) calloc ((size_t) 1, sizeof(*p))) == NULL)
1163 adios (NULL, "unable to allocate pqpair memory");
1165 if ((mp = getm (cp, NULL, 0, AD_NAME, error)) == NULL) {
1166 p->pq_text = getcpy (cp);
1167 p->pq_error = getcpy (error);
1169 if ((c1->c_flags & FACEDFLT) && c2->c_face == NULL) {
1170 char *h = mp->m_host ? mp->m_host : LocalName (0);
1171 c2->c_face = concat ("address ", h, " ", mp->m_mbox, NULL);
1173 p->pq_text = getcpy (mp->m_text);
1176 q = (q->pq_next = p);
1179 for (p = pq.pq_next; p; p = q) {
1180 FINDCOMP (cptr, "text");
1182 cptr->c_text = p->pq_text;
1183 FINDCOMP (cptr, "error");
1185 cptr->c_text = p->pq_error;
1187 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1190 c2->c_text = add (",\n", c2->c_text);
1191 if (*(cp = buffer + strlen (buffer) - 1) == '\n')
1193 c2->c_text = add (buffer, c2->c_text);
1203 c2->c_text = add ("\n", c2->c_text);
1208 static struct mcomp *
1209 add_queue (struct mcomp **head, struct mcomp **tail, char *name, char *text, int flags)
1213 if ((c1 = (struct mcomp *) calloc ((size_t) 1, sizeof(*c1))) == NULL)
1214 adios (NULL, "unable to allocate comp memory");
1216 c1->c_flags = flags & ~INIT;
1217 if ((c1->c_name = name ? getcpy (name) : NULL))
1218 c1->c_flags |= mcomp_flags (c1->c_name);
1219 c1->c_text = text ? getcpy (text) : NULL;
1222 c1->c_ovtxt = getcpy (global.c_ovtxt);
1223 c1->c_offset = global.c_offset;
1224 c1->c_ovoff = global. c_ovoff;
1225 c1->c_width = c1->c_length = 0;
1226 c1->c_cwidth = global.c_cwidth;
1227 c1->c_flags |= global.c_flags & GFLAGS;
1232 (*tail)->c_next = c1;
1240 free_queue (struct mcomp **head, struct mcomp **tail)
1242 struct mcomp *c1, *c2;
1244 for (c1 = *head; c1; c1 = c2) {
1255 free ((char *) c1->c_fmt);
1259 struct arglist *a1, *a2;
1260 for (a1 = c1->c_f_args; a1; a1 = a2) {
1272 *head = *tail = NULL;
1277 putcomp (struct mcomp *c1, struct mcomp *c2, int flag)
1284 llim = c1->c_length ? c1->c_length : -1;
1285 wid = c1->c_width ? c1->c_width : global.c_width;
1286 ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1288 if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1290 if (wid < ovoff + strlen (ovtxt) + 5)
1291 adios (NULL, "component: %s width(%d) too small for overflow(%d)",
1292 c1->c_name, wid, ovoff + strlen (ovtxt) + 5);
1295 if (c1->c_flags & CLEARTEXT) {
1296 putstr (c1->c_text, c1->c_flags);
1297 putstr ("\n", c1->c_flags);
1301 if (c1->c_flags & FACEFMT)
1302 switch (doface (c2)) {
1303 case NOTOK: /* error */
1304 case OK: /* async faceproc */
1307 default: /* sync faceproc */
1311 if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1312 mcomp_format (c1, c2);
1314 if (c1->c_flags & CENTER) {
1315 count = (c1->c_width ? c1->c_width : global.c_width)
1316 - c1->c_offset - strlen (c2->c_text);
1317 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1318 count -= strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1319 lm = c1->c_offset + (count / 2);
1325 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1326 if (c1->c_flags & UPPERCASE) /* uppercase component also */
1327 for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1329 *cp = toupper (*cp);
1330 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1331 if (flag != BODYCOMP) {
1332 putstr (": ", c1->c_flags);
1333 if (!(c1->c_flags & SPLIT))
1334 c1->c_flags |= HDROUTPUT;
1337 if ((count = c1->c_cwidth -
1338 strlen (c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1340 putstr (" ", c1->c_flags);
1343 c1->c_flags |= HDROUTPUT; /* for BODYCOMP */
1347 && !(c2->c_flags & HDROUTPUT)
1348 && !(c2->c_flags & NOCOMPONENT)) {
1349 if (c1->c_flags & UPPERCASE)
1350 for (cp = c2->c_name; *cp; cp++)
1352 *cp = toupper (*cp);
1353 putstr (c2->c_name, c1->c_flags);
1354 putstr (": ", c1->c_flags);
1355 if (!(c1->c_flags & SPLIT))
1356 c2->c_flags |= HDROUTPUT;
1359 if ((count = c1->c_cwidth - strlen (c2->c_name) - 2) > 0)
1361 putstr (" ", c1->c_flags);
1363 if (c1->c_flags & UPPERCASE)
1364 for (cp = c2->c_text; *cp; cp++)
1366 *cp = toupper (*cp);
1370 if (flag == TWOCOMP)
1371 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1372 : (int) strlen (c2->c_name) + 2;
1374 count = (c1->c_cwidth >= 0) ? (size_t) c1->c_cwidth
1375 : strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1377 count += c1->c_offset;
1379 if ((cp = oneline (c2->c_text, c1->c_flags)))
1380 putstr(cp, c1->c_flags);
1382 putstr ("\n", c1->c_flags);
1383 while ((cp = oneline (c2->c_text, c1->c_flags))) {
1385 if (flag == BODYCOMP
1386 && !(c1->c_flags & NOCOMPONENT))
1387 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1389 putstr (cp, c1->c_flags);
1391 putstr ("\n", c1->c_flags);
1393 if (flag == BODYCOMP && term == '\n')
1394 c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */
1399 oneline (char *stuff, long flags)
1407 return (onelp = NULL);
1411 if (flags & COMPRESS) {
1412 for (spc = 1, cp = ret; *onelp; onelp++)
1413 if (isspace (*onelp)) {
1414 if (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT))) {
1433 while (*onelp && *onelp != '\n')
1435 if (*onelp == '\n') {
1439 if (flags & LEFTADJUST)
1440 while (*ret == ' ' || *ret == '\t')
1443 if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1451 putstr (char *string, long flags)
1453 if (!column && lm > 0) {
1456 putch ('\t', flags);
1466 putch (*string++, flags);
1471 putch (char ch, long flags)
1484 if (ontty != ISTTY || row != global.c_length)
1486 if (global.c_flags & BELL)
1490 read (fileno (stdout), buf, sizeof(buf));
1491 if (strchr(buf, '\n')) {
1492 if (global.c_flags & CLEARSCR)
1497 row = global.c_length / 3;
1516 * If we are forwarding this message, and the first
1517 * column contains a dash, then add a dash and a space.
1519 if (column == 0 && forwflg && (dashstuff >= 0) && ch == '-') {
1528 if (column >= wid && (flags & NOWRAP) == 0) {
1529 putch ('\n', flags);
1532 putstr (ovtxt ? ovtxt : "", flags);
1548 longjmp (env, DONE);
1573 face_format (struct mcomp *c1)
1576 struct mailname *mp;
1578 if ((cp = c1->c_text) == NULL)
1581 if ((cp = getname (cp))) {
1582 if ((mp = getm (cp, NULL, 0, AD_NAME, NULL))) {
1583 char *h = mp->m_host ? mp->m_host : LocalName (0);
1584 c1->c_face = concat ("address ", h, " ", mp->m_mbox, NULL);
1587 while ((cp = getname (cp)))
1594 * faceproc is two elements defining the image agent's location:
1599 #include <sys/socket.h>
1600 #include <netinet/in.h>
1602 #include <arpa/inet.h>
1605 doface (struct mcomp *c1)
1608 static int inited = OK;
1609 static struct sockaddr_storage ss;
1610 static socklen_t socklen;
1611 static int socktype;
1612 static int protocol;
1616 char **ap = brkstring (cp = getcpy (faceproc), " ", "\n");
1617 struct addrinfo hints, *res;
1619 if (ap[0] == NULL || ap[1] == NULL) {
1622 return (inited = NOTOK);
1625 memset(&hints, 0, sizeof(hints));
1626 #ifdef AI_ADDRCONFIG
1627 hints.ai_flags = AI_ADDRCONFIG;
1629 hints.ai_family = PF_UNSPEC;
1630 hints.ai_socktype = SOCK_DGRAM;
1632 if (getaddrinfo(ap[0], ap[1], &hints, &res) != 0)
1635 memcpy(&ss, res->ai_addr, res->ai_addrlen);
1636 socklen = res->ai_addrlen;
1637 socktype = res->ai_socktype;
1638 protocol = res->ai_protocol;
1643 if (inited == NOTOK)
1646 if ((sd = socket (ss.ss_family, socktype, protocol)) == NOTOK)
1649 result = sendto (sd, c1->c_text, strlen (c1->c_text), 0,
1650 (struct sockaddr *) &ss, socklen);
1654 return (result != NOTOK ? OK : NOTOK);
1659 * This version doesn't use sockets
1664 doface (struct mcomp *c1)
1668 int result, pdi[2], pdo[2];
1670 char buffer[BUFSIZ], *vec[10];
1672 if (pipe (pdi) == NOTOK)
1674 if (pipe (pdo) == NOTOK) {
1680 for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
1685 /* oops... fork error */
1690 SIGNAL (SIGINT, SIG_IGN);
1691 SIGNAL (SIGQUIT, SIG_IGN);
1692 if (pdi[0] != fileno (stdin)) {
1693 dup2 (pdi[0], fileno (stdin));
1698 if (pdo[1] != fileno (stdout)) {
1699 dup2 (pdo[1], fileno (stdout));
1703 vec[vecp++] = r1bindex (faceproc, '/');
1705 if (sleepsw != NOTOK) {
1707 snprintf (buffer, sizeof(buffer), "%d", sleepsw);
1708 vec[vecp++] = buffer;
1711 execvp (faceproc, vec);
1712 fprintf (stderr, "unable to exec ");
1714 _exit (-1); /* NOTREACHED */
1717 /* parent process */
1719 i = strlen (c1->c_text);
1720 if (write (pdi[1], c1->c_text, i) != i)
1721 adios ("pipe", "error writing to");
1722 free (c1->c_text), c1->c_text = NULL;
1728 while ((i = read (pdo[0], buffer, strlen (buffer))) > 0) {
1732 dp = mh_xrealloc (cp, (unsigned) (j = len + i));
1733 memcpy(dp + len, buffer, i);
1737 cp = mh_xmalloc ((unsigned) i);
1738 memcpy(cp, buffer, i);
1742 for (bp = buffer + i - 1; bp >= buffer; bp--)
1743 if (!isascii (*bp) || iscntrl (*bp)) {
1750 /* no waiting for child... */
1752 if (result == OK) { /* binary */
1753 if (write (1, cp, len) != len)
1754 adios ("writing", "error");
1758 if ((c1->c_text = cp) == NULL)
1765 #endif /* COMMENTED OUT */
1769 mhlsbr (int argc, char **argv, FILE *(*action)())
1771 SIGNAL_HANDLER istat = NULL, pstat = NULL, qstat = NULL;
1775 switch (setjmp (mhlenv)) {
1778 sleepsw = 0; /* XXX */
1779 bellflg = clearflg = forwflg = forwall = exitstat = 0;
1782 mhl_action = action;
1785 * If signal is at default action, then start ignoring
1786 * it, else let it set to its current action.
1788 if ((istat = SIGNAL (SIGINT, SIG_IGN)) != SIG_DFL)
1789 SIGNAL (SIGINT, istat);
1790 if ((qstat = SIGNAL (SIGQUIT, SIG_IGN)) != SIG_DFL)
1791 SIGNAL (SIGQUIT, qstat);
1792 pstat = SIGNAL (SIGPIPE, pipeser);
1793 mhl (argc, argv); /* FALL THROUGH! */
1796 SIGNAL (SIGINT, istat);
1797 SIGNAL (SIGQUIT, qstat);
1798 SIGNAL (SIGPIPE, SIG_IGN);/* should probably change to block instead */
1801 SIGNAL (SIGPIPE, pstat);
1803 if (holder.c_text) {
1804 free (holder.c_text);
1805 holder.c_text = NULL;
1807 free_queue (&msghd, &msgtl);
1808 for (c1 = fmthd; c1; c1 = c1->c_next)
1809 c1->c_flags &= ~HDROUTPUT;
1818 mhladios (char *what, char *fmt, ...)
1823 advertise (what, NULL, fmt, ap);
1830 mhldone (int status)
1834 longjmp (mhlenv, DONE);
1840 static int m_pid = NOTOK;
1841 static int sd = NOTOK;
1844 m_popen (char *name)
1848 if (mhl_action && (sd = dup (fileno (stdout))) == NOTOK)
1849 adios ("standard output", "unable to dup()");
1851 if (pipe (pd) == NOTOK)
1852 adios ("pipe", "unable to");
1854 switch (m_pid = vfork()) {
1856 adios ("fork", "unable to");
1859 SIGNAL (SIGINT, SIG_DFL);
1860 SIGNAL (SIGQUIT, SIG_DFL);
1863 if (pd[0] != fileno (stdin)) {
1864 dup2 (pd[0], fileno (stdin));
1867 execlp (name, r1bindex (name, '/'), NULL);
1868 fprintf (stderr, "unable to exec ");
1874 if (pd[1] != fileno (stdout)) {
1875 dup2 (pd[1], fileno (stdout));
1890 if (dup2 (sd, fileno (stdout)) == NOTOK)
1891 adios ("standard output", "unable to dup2()");
1900 pidwait (m_pid, OK);
1906 * Compile a format string and add it to the list of arguments used by
1909 * This deserves some explanation. Here's the deal:
1911 * We want to keep track of components used as arguments by formatproc,
1912 * but the hash table is reset every time fmt_compile is called. So we
1913 * iterate through the function list looking for things that use components
1914 * and save the name. And because we might get the same components used
1915 * by different arguments we need to keep track to every reference of
1916 * every component so we can add them when the message is processed. So
1917 * we compile the argument string now (to get the components we use) and
1918 * save them for later.
1922 compileargs (struct mcomp *c1, char *nfs)
1925 struct arglist *args;
1930 i = fmt_compile(nfs, &fmt);
1933 * Search through and mark any components that are address components
1936 for (ap = addrcomps; *ap; ap++) {
1937 FINDCOMP (cptr, *ap);
1939 cptr->c_type |= CT_ADDR;
1942 args = (struct arglist *) mh_xmalloc(sizeof(struct arglist));
1945 adios (NULL, "Unable to allocate formatproc args storage");
1948 args->a_nfs = format_string;
1949 args->a_next = NULL;
1951 format_string = NULL;
1954 c1->c_f_tail->a_next = args;
1956 c1->c_f_tail = args;
1959 c1->c_f_args = args;
1965 * If wantcomp ever changes size, we need to change the size
1966 * of mhlcomp as well
1969 for (i = 0; i < sizeof(wantcomp)/sizeof(wantcomp[0]); i++) {
1973 for (c = mhlcomp[i]; c->c_next != NULL; c = c->c_next)
1975 c->c_next = wantcomp[i];
1977 mhlcomp[i] = wantcomp[i];
1985 * Check to see if we are interested in a component. If we are, save
1990 checkcomp(char *name, char *buf)
1994 int bucket = CHASH(name);
1997 if ((c = mhlcomp[bucket])) {
1999 if (mh_strcasecmp(name, c->c_name) == 0) {
2002 c->c_text = strdup(buf);
2004 i = strlen(cp = c->c_text) - 1;
2005 if (cp[i] == '\n') {
2006 if (c->c_type & CT_ADDR) {
2008 cp = add (",\n\t", cp);
2010 cp = add ("\t", cp);
2013 c->c_text = add (buf, cp);
2016 } while ((c = c->c_next));
2019 return found ? bucket : -1;
2023 * Add text to an existing component
2027 addcomp(int bucket, char *name, char *buf)
2032 c = mhlcomp[bucket];
2034 if (mh_strcasecmp(name, c->c_name) == 0)
2035 c->c_text = add (buf, c->c_text);
2036 } while ((c = c->c_next));
2041 * Free up saved component structures
2047 struct comp *c1, *c2;
2050 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) {
2051 if ((c1 = mhlcomp[i]))
2052 for (; c1; c1 = c2) {
2062 * Just free up the component text.
2071 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) {
2072 if ((c1 = mhlcomp[i]))
2073 for (; c1; c1 = c1->c_next) {
2083 * Filter the body of a message through a specified format program
2087 filterbody (struct mcomp *c1, char *buf, int bufsz, int state, FILE *fp)
2089 struct mcomp holder;
2091 int fdinput[2], fdoutput[2], waitstat;
2093 pid_t writerpid, filterpid;
2096 * Create pipes so we can communicate with our filter process.
2099 if (pipe(fdinput) < 0) {
2100 adios(NULL, "Unable to create input pipe");
2103 if (pipe(fdoutput) < 0) {
2104 adios(NULL, "Unable to create output pipe");
2108 * Here's what we're doing to do.
2110 * - Fork ourselves and start writing data to the write side of the
2111 * input pipe (fdinput[1]).
2113 * - Fork and exec our filter program. We set the standard input of
2114 * our filter program to be the read side of our input pipe (fdinput[0]).
2115 * Standard output is set to the write side of our output pipe
2118 * - We read from the read side of the output pipe (fdoutput[0]).
2120 * We're forking because that's the simplest way to prevent any deadlocks.
2121 * (without doing something like switching to non-blocking I/O and using
2122 * select or poll, and I'm not interested in doing that).
2125 switch (writerpid = fork()) {
2128 * Our child process - just write to the filter input (fdinput[1]).
2129 * Close all other descriptors that we don't need.
2137 * Call m_getfld() until we're no longer in the BODY state
2140 while (state == BODY) {
2141 write(fdinput[1], buf, strlen(buf));
2142 state = m_getfld(state, name, buf, bufsz, fp);
2146 * We should be done; time to exit.
2151 * Make sure we call _exit(), otherwise we may flush out the stdio
2152 * buffers that we have duplicated from the parent.
2157 adios(NULL, "Unable to fork for filter writer process");
2162 * Fork and exec() our filter program, after redirecting standard in
2163 * and standard out appropriately.
2166 switch (filterpid = fork()) {
2173 * Allocate an argument array for us
2176 args = (char **) mh_xmalloc((c1->c_nargs + 2) * sizeof(char *));
2177 args[0] = formatproc;
2178 args[c1->c_nargs + 1] = NULL;
2186 * Pull out each argument and scan them.
2189 for (a = c1->c_f_args, i = 1; a != NULL; a = a->a_next, i++) {
2190 args[i] = mh_xmalloc(BUFSIZ);
2191 fmt_scan(a->a_fmt, args[i], BUFSIZ, dat);
2193 * fmt_scan likes to put a trailing newline at the end of the
2194 * format string. If we have one, get rid of it.
2196 s = strlen(args[i]);
2197 if (args[i][s - 1] == '\n')
2198 args[i][s - 1] = '\0';
2201 if (dup2(fdinput[0], STDIN_FILENO) < 0) {
2202 adios("formatproc", "Unable to dup2() standard input");
2204 if (dup2(fdoutput[1], STDOUT_FILENO) < 0) {
2205 adios("formatproc", "Unable to dup2() standard output");
2209 * Close everything (especially the old input and output
2210 * descriptors, since they've been dup'd to stdin and stdout),
2211 * and exec the formatproc.
2219 execvp(formatproc, args);
2221 adios(formatproc, "Unable to execute filter");
2226 adios(NULL, "Unable to fork format program");
2230 * Close everything except our reader (fdoutput[0]);
2238 * As we read in this data, send it to putcomp
2241 holder.c_text = buf;
2243 while ((cc = read(fdoutput[0], buf, bufsz - 1)) > 0) {
2245 putcomp(c1, &holder, BODYCOMP);
2249 adios(NULL, "reading from formatproc");
2253 * See if we got any errors along the way. I'm a little leery of calling
2254 * waitpid() without WNOHANG, but it seems to be the most correct solution.
2257 if (waitpid(filterpid, &waitstat, 0) < 0) {
2258 if (errno != ECHILD) {
2259 adios("filterproc", "Unable to determine status");
2262 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
2263 pidstatus(waitstat, stderr, "filterproc");
2267 if (waitpid(writerpid, &waitstat, 0) < 0) {
2268 if (errno != ECHILD) {
2269 adios("writer process", "Unable to determine status");
2273 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
2274 pidstatus(waitstat, stderr, "writer process");