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 },
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 },
227 static int bellflg = 0;
228 static int clearflg = 0;
229 static int dashstuff = 0;
230 static int dobody = 1;
231 static int forwflg = 0;
232 static int forwall = 0;
234 static int sleepsw = NOTOK;
236 static char *digest = NULL;
237 static int volume = 0;
238 static int issue = 0;
240 static int exitstat = 0;
241 static int mhldebug = 0;
243 static int filesize = 0;
248 static int ontty = NOTTY;
251 static unsigned int column;
257 static unsigned int wid;
261 static unsigned char *onelp;
265 static int num_ignores = 0;
266 static char *ignores[MAXARGS];
269 static jmp_buf mhlenv;
271 static char delim3[] = /* from forw.c */
272 "\n----------------------------------------------------------------------\n\n";
273 static char delim4[] = "\n------------------------------\n\n";
275 static FILE *(*mhl_action) () = (FILE *(*) ()) 0;
277 static struct comp *mhlcomp[128];
280 * Redefine a couple of functions.
281 * These are undefined later in the code.
283 #define adios mhladios
289 static void mhl_format (char *, int, int);
290 static int evalvar (struct mcomp *);
291 static int ptoi (char *, int *);
292 static int ptos (char *, char **);
293 static char *parse (void);
294 static void process (char *, char *, int, int);
295 static void mhlfile (FILE *, char *, int, int);
296 static int mcomp_flags (char *);
297 static char *mcomp_add (long, char *, char *);
298 static void mcomp_format (struct mcomp *, struct mcomp *);
299 static struct mcomp *add_queue (struct mcomp **, struct mcomp **, char *, char *, int);
300 static void free_queue (struct mcomp **, struct mcomp **);
301 static void putcomp (struct mcomp *, struct mcomp *, int);
302 static char *oneline (char *, long);
303 static void putstr (char *, long);
304 static void putch (char, long);
305 static void intrser (int);
306 static void pipeser (int);
307 static void quitser (int);
308 static void face_format (struct mcomp *);
309 static int doface (struct mcomp *);
310 static void mhladios (char *, char *, ...);
311 static void mhldone (int);
312 static void m_popen (char *);
313 static void filterbody (struct mcomp *, char *, int, int, FILE *);
314 static int compileargs (struct mcomp *, char *);
315 static int checkcomp (char *, char *);
316 static void addcomp (int, char *, char *);
317 static void freecomps (void);
318 static void freecomptext (void);
322 mhl (int argc, char **argv)
324 int length = 0, nomore = 0;
325 unsigned int i, vecp = 0;;
327 char *cp, *folder = NULL, *form = NULL;
328 char buf[BUFSIZ], *files[MAXARGS];
329 char **argp, **arguments;
331 invo_name = r1bindex (argv[0], '/');
333 /* read user profile/context */
336 arguments = getarguments (invo_name, argc, argv, 1);
339 if ((cp = getenv ("MHLDEBUG")) && *cp)
342 if ((cp = getenv ("FACEPROC")))
345 while ((cp = *argp++)) {
347 switch (smatch (++cp, mhlswitches)) {
349 ambigsw (cp, mhlswitches);
352 adios (NULL, "-%s unknown\n", cp);
355 snprintf (buf, sizeof(buf), "%s [switches] [files ...]", invo_name);
356 print_help (buf, mhlswitches, 1);
359 print_version(invo_name);
377 if (!(folder = *argp++) || *folder == '-')
378 adios (NULL, "missing argument to %s", argp[-2]);
381 if (!(form = *argp++) || *form == '-')
382 adios (NULL, "missing argument to %s", argp[-2]);
386 if (!(faceproc = *argp++) || *faceproc == '-')
387 adios (NULL, "missing argument to %s", argp[-2]);
393 if (!(cp = *argp++) || *cp == '-')
394 adios (NULL, "missing argument to %s", argp[-2]);
395 sleepsw = atoi (cp);/* ZERO ok! */
399 if (!(moreproc = *argp++) || *moreproc == '-')
400 adios (NULL, "missing argument to %s", argp[-2]);
407 if (!(formatproc = *argp++) || *formatproc == '-')
408 adios (NULL, "missing argument to %s", argp[-2]);
415 if (!(cp = *argp++) || *cp == '-')
416 adios (NULL, "missing argument to %s", argp[-2]);
417 if ((length = atoi (cp)) < 1)
418 adios (NULL, "bad argument %s %s", argp[-2], cp);
421 if (!(cp = *argp++) || *cp == '-')
422 adios (NULL, "missing argument to %s", argp[-2]);
423 if ((width = atoi (cp)) < 1)
424 adios (NULL, "bad argument %s %s", argp[-2], cp);
428 if (!(digest = *argp++) || *digest == '-')
429 adios (NULL, "missing argument to %s", argp[-2]);
432 if (!(cp = *argp++) || *cp == '-')
433 adios (NULL, "missing argument to %s", argp[-2]);
434 if ((issue = atoi (cp)) < 1)
435 adios (NULL, "bad argument %s %s", argp[-2], cp);
438 if (!(cp = *argp++) || *cp == '-')
439 adios (NULL, "missing argument to %s", argp[-2]);
440 if ((volume = atoi (cp)) < 1)
441 adios (NULL, "bad argument %s %s", argp[-2], cp);
445 forwall++; /* fall */
448 clearflg = -1;/* XXX */
452 dashstuff = 1; /* trinary logic */
455 dashstuff = -1; /* trinary logic */
467 folder = getenv ("mhfolder");
469 if (isatty (fileno (stdout))) {
470 if (!nomore && !sc_hardcopy() && moreproc && *moreproc != '\0') {
472 SIGNAL (SIGINT, SIG_IGN);
473 SIGNAL2 (SIGQUIT, quitser);
475 SIGNAL2 (SIGPIPE, pipeser);
479 SIGNAL (SIGINT, SIG_IGN);
480 SIGNAL2 (SIGQUIT, quitser);
487 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++)
490 mhl_format (form ? form : mhlformat, length, width);
493 process (folder, NULL, 1, vecp = 1);
495 for (i = 0; i < vecp; i++)
496 process (folder, files[i], i + 1, vecp);
503 printf ("%s", delim4);
505 snprintf (buf, sizeof(buf), "End of %s Digest\n", digest);
507 snprintf (buf, sizeof(buf), "End of %s Digest [Volume %d Issue %d]\n",
508 digest, volume, issue);
511 for (cp = buf + i; i > 1; i--)
518 printf ("\n------- End of Forwarded Message%s\n",
519 vecp > 1 ? "s" : "");
524 adios("output", "error writing");
527 if (clearflg > 0 && ontty == NOTTY)
538 mhl_format (char *file, int length, int width)
542 char *ap, buffer[BUFSIZ], name[NAMESZ];
546 static dev_t dev = 0;
547 static ino_t ino = 0;
548 static time_t mtime = 0;
551 if (stat (etcpath (file), &st) != NOTOK
552 && mtime == st.st_mtime
557 free_queue (&fmthd, &fmttl);
560 if ((fp = fopen (etcpath (file), "r")) == NULL)
561 adios (file, "unable to open format file");
563 if (fstat (fileno (fp), &st) != NOTOK) {
569 global.c_ovtxt = global.c_nfs = NULL;
573 if ((i = sc_width ()) > 5)
575 global.c_cwidth = -1;
576 if ((i = sc_length ()) > 5)
577 global.c_length = i - 1;
578 global.c_flags = BELL; /* BELL is default */
579 *(ip = ignores) = NULL;
581 while (vfgets (fp, &ap) == OK) {
586 if ((cp = strchr(bp, '\n')))
590 c1 = add_queue (&fmthd, &fmttl, NULL, bp + 1, CLEARTEXT);
595 strncpy (name, parse(), sizeof(name));
601 * Split this list of fields to ignore, and copy
602 * it to the end of the current "ignores" list.
604 if (!mh_strcasecmp (name, "ignores")) {
605 char **tmparray, **p;
608 /* split the fields */
609 tmparray = brkstring (getcpy (++parptr), ",", NULL);
611 /* count number of fields split */
616 /* copy pointers to split fields to ignores array */
617 ip = copyip (tmparray, ip, MAXARGS - num_ignores);
623 if (evalvar (&global))
624 adios (NULL, "format file syntax error: %s", bp);
631 c1 = add_queue (&fmthd, &fmttl, name, NULL, INIT);
632 while (*parptr == ':' || *parptr == ',') {
635 adios (NULL, "format file syntax error: %s", bp);
637 if (!c1->c_nfs && global.c_nfs) {
638 if (c1->c_flags & DATEFMT) {
639 if (global.c_flags & DATEFMT)
640 c1->c_nfs = getcpy (global.c_nfs);
643 if (c1->c_flags & ADDRFMT) {
644 if (global.c_flags & ADDRFMT)
645 c1->c_nfs = getcpy (global.c_nfs);
651 adios (NULL, "format file syntax error: %s", bp);
657 for (c1 = fmthd; c1; c1 = c1->c_next) {
658 fprintf (stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n",
659 c1->c_name, c1->c_text, c1->c_ovtxt);
660 fprintf (stderr, "\tnfs=0x%x fmt=0x%x\n",
661 (unsigned int)(unsigned long) c1->c_nfs,
662 (unsigned int)(unsigned long) c1->c_fmt);
663 fprintf (stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d length=%d\n",
664 c1->c_offset, c1->c_ovoff, c1->c_width,
665 c1->c_cwidth, c1->c_length);
666 fprintf (stderr, "\tflags=%s\n",
667 snprintb (buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
673 global.c_flags |= CLEARSCR;
676 global.c_flags &= ~CLEARSCR;
679 switch (bellflg) { /* command line may override format file */
681 global.c_flags |= BELL;
684 global.c_flags &= ~BELL;
689 global.c_length = length;
691 global.c_width = width;
692 if (global.c_length < 5)
693 global.c_length = 10000;
694 if (global.c_width < 5)
695 global.c_width = 10000;
700 evalvar (struct mcomp *c1)
702 char *cp, name[NAMESZ];
707 strncpy (name, parse(), sizeof(name));
709 if (!mh_strcasecmp (name, "component")) {
710 if (ptos (name, &c1->c_text))
712 c1->c_flags &= ~NOCOMPONENT;
716 if (!mh_strcasecmp (name, "overflowtext"))
717 return ptos (name, &c1->c_ovtxt);
719 if (!mh_strcasecmp (name, "formatfield")) {
722 if (ptos (name, &cp))
724 nfs = new_fs (NULL, NULL, cp);
725 c1->c_nfs = getcpy (nfs);
726 c1->c_flags |= FORMAT;
730 if (!mh_strcasecmp (name, "decode")) {
733 nfs = new_fs (NULL, NULL, "%(decode{text})");
734 c1->c_nfs = getcpy (nfs);
735 c1->c_flags |= FORMAT;
739 if (!mh_strcasecmp (name, "offset"))
740 return ptoi (name, &c1->c_offset);
741 if (!mh_strcasecmp (name, "overflowoffset"))
742 return ptoi (name, &c1->c_ovoff);
743 if (!mh_strcasecmp (name, "width"))
744 return ptoi (name, &c1->c_width);
745 if (!mh_strcasecmp (name, "compwidth"))
746 return ptoi (name, &c1->c_cwidth);
747 if (!mh_strcasecmp (name, "length"))
748 return ptoi (name, &c1->c_length);
749 if (!mh_strcasecmp (name, "nodashstuffing"))
750 return (dashstuff = -1);
752 for (ap = triples; ap->t_name; ap++)
753 if (!mh_strcasecmp (ap->t_name, name)) {
754 c1->c_flags |= ap->t_on;
755 c1->c_flags &= ~ap->t_off;
759 if (!mh_strcasecmp (name, "formatarg")) {
763 if (ptos (name, &cp))
765 nfs = new_fs (NULL, NULL, cp);
767 rc = compileargs(c1, nfs);
778 ptoi (char *name, int *i)
782 if (*parptr++ != '=' || !*(cp = parse ())) {
783 advise (NULL, "missing argument to variable %s", name);
793 ptos (char *name, char **s)
797 if (*parptr++ != '=') {
798 advise (NULL, "missing argument to variable %s", name);
802 if (*parptr != '"') {
804 *parptr && *parptr != ':' && *parptr != ',';
808 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
809 if (*parptr == QUOTE)
816 if ((*parptr = c) == '"')
827 static char result[NAMESZ];
829 for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
848 process (char *folder, char *fname, int ofilen, int ofilec)
855 switch (m_setjmp (env)) {
858 fp = mhl_action ? (*mhl_action) (fname) : fopen (fname, "r");
860 advise (fname, "unable to open");
868 if (fstat(fileno(fp), &st) == 0) {
869 filesize = st.st_size;
873 cp = folder ? concat (folder, ":", fname, NULL) : getcpy (fname);
875 SIGNAL (SIGINT, intrser);
876 mhlfile (fp, cp, ofilen, ofilec); /* FALL THROUGH! */
880 SIGNAL (SIGINT, SIG_IGN);
881 if (mhl_action == NULL && fp != stdin)
885 free (holder.c_text);
886 holder.c_text = NULL;
888 free_queue (&msghd, &msgtl);
889 for (c1 = fmthd; c1; c1 = c1->c_next)
890 c1->c_flags &= ~HDROUTPUT;
899 mhlfile (FILE *fp, char *mname, int ofilen, int ofilec)
902 struct mcomp *c1, *c2, *c3;
903 char **ip, name[NAMESZ], buf[BUFSIZ];
907 printf ("%s", ofilen == 1 ? delim3 : delim4);
909 printf ("\n-------");
911 printf (" Forwarded Message%s", ofilec > 1 ? "s" : "");
913 printf (" Message %d", ofilen);
921 if ((global.c_flags & CLEARSCR))
926 printf (">>> %s\n\n", mname);
931 strncpy (buf, "\n", sizeof(buf));
933 if (SOprintf ("Press <return> to list \"%s\"...", mname)) {
936 printf ("Press <return> to list \"%s\"...", mname);
940 read (fileno (stdout), buf, sizeof(buf));
942 if (strchr(buf, '\n')) {
943 if ((global.c_flags & CLEARSCR))
957 printf (">>> %s\n\n", mname);
963 for (state = FLD;;) {
964 switch (state = m_getfld (state, name, buf, sizeof(buf), fp)) {
967 bucket = checkcomp(name, buf);
968 for (ip = ignores; *ip; ip++)
969 if (!mh_strcasecmp (name, *ip)) {
970 while (state == FLDPLUS) {
971 state = m_getfld (state, name, buf, sizeof(buf), fp);
972 addcomp(bucket, name, buf);
979 for (c2 = fmthd; c2; c2 = c2->c_next)
980 if (!mh_strcasecmp (c2->c_name, name))
983 if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
984 for (c1 = msghd; c1; c1 = c1->c_next)
985 if (!mh_strcasecmp (c1->c_name, c3->c_name)) {
987 mcomp_add (c1->c_flags, buf, c1->c_text);
991 c1 = add_queue (&msghd, &msgtl, name, buf, 0);
992 while (state == FLDPLUS) {
993 state = m_getfld (state, name, buf, sizeof(buf), fp);
994 c1->c_text = add (buf, c1->c_text);
995 addcomp(bucket, name, buf);
998 c1->c_flags |= EXTRA;
1004 for (c1 = fmthd; c1; c1 = c1->c_next) {
1005 if (c1->c_flags & CLEARTEXT) {
1006 putcomp (c1, c1, ONECOMP);
1009 if (!mh_strcasecmp (c1->c_name, "messagename")) {
1010 holder.c_text = concat ("(Message ", mname, ")\n",
1012 putcomp (c1, &holder, ONECOMP);
1013 free (holder.c_text);
1014 holder.c_text = NULL;
1017 if (!mh_strcasecmp (c1->c_name, "extras")) {
1018 for (c2 = msghd; c2; c2 = c2->c_next)
1019 if (c2->c_flags & EXTRA)
1020 putcomp (c1, c2, TWOCOMP);
1023 if (dobody && !mh_strcasecmp (c1->c_name, "body")) {
1024 if (c1->c_flags & FMTFILTER && state == BODY &&
1025 formatproc != NULL) {
1026 filterbody(c1, buf, sizeof(buf), state, fp);
1028 holder.c_text = mh_xmalloc (sizeof(buf));
1029 strncpy (holder.c_text, buf, sizeof(buf));
1030 while (state == BODY) {
1031 putcomp (c1, &holder, BODYCOMP);
1032 state = m_getfld (state, name, holder.c_text,
1035 free (holder.c_text);
1036 holder.c_text = NULL;
1040 for (c2 = msghd; c2; c2 = c2->c_next)
1041 if (!mh_strcasecmp (c2->c_name, c1->c_name)) {
1042 putcomp (c1, c2, ONECOMP);
1043 if (!(c1->c_flags & SPLIT))
1046 if (faceproc && c2 == NULL && (c1->c_flags & FACEFMT))
1047 for (c2 = msghd; c2; c2 = c2->c_next)
1048 if (c2->c_flags & FACEDFLT) {
1049 if (c2->c_face == NULL)
1051 if ((holder.c_text = c2->c_face)) {
1052 putcomp (c1, &holder, ONECOMP);
1053 holder.c_text = NULL;
1062 advise (NULL, "format error in message %s", mname);
1067 adios (NULL, "getfld() returned %d", state);
1074 mcomp_flags (char *name)
1078 for (ap = pairs; ap->p_name; ap++)
1079 if (!mh_strcasecmp (ap->p_name, name))
1080 return (ap->p_flags);
1087 mcomp_add (long flags, char *s1, char *s2)
1091 if (!(flags & ADDRFMT))
1092 return add (s1, s2);
1094 if (s2 && *(dp = s2 + strlen (s2) - 1) == '\n')
1097 return add (s1, add (",\n", s2));
1104 struct pqpair *pq_next;
1109 mcomp_format (struct mcomp *c1, struct mcomp *c2)
1113 char buffer[BUFSIZ], error[BUFSIZ];
1115 struct pqpair *p, *q;
1117 struct mailname *mp;
1124 dat[3] = sizeof(buffer) - 1;
1126 fmt_compile (c1->c_nfs, &c1->c_fmt);
1128 if (!(c1->c_flags & ADDRFMT)) {
1129 FINDCOMP (cptr, "text");
1132 if ((cp = strrchr(ap, '\n'))) /* drop ending newline */
1136 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1137 /* Don't need to append a newline, dctime() already did */
1138 c2->c_text = getcpy (buffer);
1144 (q = &pq)->pq_next = NULL;
1145 while ((cp = getname (ap))) {
1146 if ((p = (struct pqpair *) calloc ((size_t) 1, sizeof(*p))) == NULL)
1147 adios (NULL, "unable to allocate pqpair memory");
1149 if ((mp = getm (cp, NULL, 0, AD_NAME, error)) == NULL) {
1150 p->pq_text = getcpy (cp);
1151 p->pq_error = getcpy (error);
1153 if ((c1->c_flags & FACEDFLT) && c2->c_face == NULL) {
1154 char *h = mp->m_host ? mp->m_host : LocalName (0);
1155 c2->c_face = concat ("address ", h, " ", mp->m_mbox, NULL);
1157 p->pq_text = getcpy (mp->m_text);
1160 q = (q->pq_next = p);
1163 for (p = pq.pq_next; p; p = q) {
1164 FINDCOMP (cptr, "text");
1166 cptr->c_text = p->pq_text;
1167 FINDCOMP (cptr, "error");
1169 cptr->c_text = p->pq_error;
1171 fmt_scan (c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1174 c2->c_text = add (",\n", c2->c_text);
1175 if (*(cp = buffer + strlen (buffer) - 1) == '\n')
1177 c2->c_text = add (buffer, c2->c_text);
1187 c2->c_text = add ("\n", c2->c_text);
1192 static struct mcomp *
1193 add_queue (struct mcomp **head, struct mcomp **tail, char *name, char *text, int flags)
1197 if ((c1 = (struct mcomp *) calloc ((size_t) 1, sizeof(*c1))) == NULL)
1198 adios (NULL, "unable to allocate comp memory");
1200 c1->c_flags = flags & ~INIT;
1201 if ((c1->c_name = name ? getcpy (name) : NULL))
1202 c1->c_flags |= mcomp_flags (c1->c_name);
1203 c1->c_text = text ? getcpy (text) : NULL;
1206 c1->c_ovtxt = getcpy (global.c_ovtxt);
1207 c1->c_offset = global.c_offset;
1208 c1->c_ovoff = global. c_ovoff;
1209 c1->c_width = c1->c_length = 0;
1210 c1->c_cwidth = global.c_cwidth;
1211 c1->c_flags |= global.c_flags & GFLAGS;
1216 (*tail)->c_next = c1;
1224 free_queue (struct mcomp **head, struct mcomp **tail)
1226 struct mcomp *c1, *c2;
1228 for (c1 = *head; c1; c1 = c2) {
1239 free ((char *) c1->c_fmt);
1243 struct arglist *a1, *a2;
1244 for (a1 = c1->c_f_args; a1; a1 = a2) {
1256 *head = *tail = NULL;
1261 putcomp (struct mcomp *c1, struct mcomp *c2, int flag)
1268 llim = c1->c_length ? c1->c_length : -1;
1269 wid = c1->c_width ? c1->c_width : global.c_width;
1270 ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1272 if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1274 if (wid < ovoff + strlen (ovtxt) + 5)
1275 adios (NULL, "component: %s width(%d) too small for overflow(%d)",
1276 c1->c_name, wid, ovoff + strlen (ovtxt) + 5);
1279 if (c1->c_flags & CLEARTEXT) {
1280 putstr (c1->c_text, c1->c_flags);
1281 putstr ("\n", c1->c_flags);
1285 if (c1->c_flags & FACEFMT)
1286 switch (doface (c2)) {
1287 case NOTOK: /* error */
1288 case OK: /* async faceproc */
1291 default: /* sync faceproc */
1295 if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1296 mcomp_format (c1, c2);
1298 if (c1->c_flags & CENTER) {
1299 count = (c1->c_width ? c1->c_width : global.c_width)
1300 - c1->c_offset - strlen (c2->c_text);
1301 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1302 count -= strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1303 lm = c1->c_offset + (count / 2);
1309 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1310 if (c1->c_flags & UPPERCASE) /* uppercase component also */
1311 for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1313 *cp = toupper (*cp);
1314 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1315 if (flag != BODYCOMP) {
1316 putstr (": ", c1->c_flags);
1317 if (!(c1->c_flags & SPLIT))
1318 c1->c_flags |= HDROUTPUT;
1321 if ((count = c1->c_cwidth -
1322 strlen (c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1324 putstr (" ", c1->c_flags);
1327 c1->c_flags |= HDROUTPUT; /* for BODYCOMP */
1331 && !(c2->c_flags & HDROUTPUT)
1332 && !(c2->c_flags & NOCOMPONENT)) {
1333 if (c1->c_flags & UPPERCASE)
1334 for (cp = c2->c_name; *cp; cp++)
1336 *cp = toupper (*cp);
1337 putstr (c2->c_name, c1->c_flags);
1338 putstr (": ", c1->c_flags);
1339 if (!(c1->c_flags & SPLIT))
1340 c2->c_flags |= HDROUTPUT;
1343 if ((count = c1->c_cwidth - strlen (c2->c_name) - 2) > 0)
1345 putstr (" ", c1->c_flags);
1347 if (c1->c_flags & UPPERCASE)
1348 for (cp = c2->c_text; *cp; cp++)
1350 *cp = toupper (*cp);
1354 if (flag == TWOCOMP)
1355 count = (c1->c_cwidth >= 0) ? c1->c_cwidth
1356 : (int) strlen (c2->c_name) + 2;
1358 count = (c1->c_cwidth >= 0) ? (size_t) c1->c_cwidth
1359 : strlen (c1->c_text ? c1->c_text : c1->c_name) + 2;
1361 count += c1->c_offset;
1363 if ((cp = oneline (c2->c_text, c1->c_flags)))
1364 putstr(cp, c1->c_flags);
1366 putstr ("\n", c1->c_flags);
1367 while ((cp = oneline (c2->c_text, c1->c_flags))) {
1369 if (flag == BODYCOMP
1370 && !(c1->c_flags & NOCOMPONENT))
1371 putstr (c1->c_text ? c1->c_text : c1->c_name, c1->c_flags);
1373 putstr (cp, c1->c_flags);
1375 putstr ("\n", c1->c_flags);
1377 if (flag == BODYCOMP && term == '\n')
1378 c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */
1383 oneline (char *stuff, long flags)
1391 return (onelp = NULL);
1395 if (flags & COMPRESS) {
1396 for (spc = 1, cp = ret; *onelp; onelp++)
1397 if (isspace (*onelp)) {
1398 if (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT))) {
1417 while (*onelp && *onelp != '\n')
1419 if (*onelp == '\n') {
1423 if (flags & LEFTADJUST)
1424 while (*ret == ' ' || *ret == '\t')
1427 if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1435 putstr (char *string, long flags)
1437 if (!column && lm > 0) {
1440 putch ('\t', flags);
1450 putch (*string++, flags);
1455 putch (char ch, long flags)
1468 if (ontty != ISTTY || row != global.c_length)
1470 if (global.c_flags & BELL)
1474 read (fileno (stdout), buf, sizeof(buf));
1475 if (strchr(buf, '\n')) {
1476 if (global.c_flags & CLEARSCR)
1481 row = global.c_length / 3;
1500 * If we are forwarding this message, and the first
1501 * column contains a dash, then add a dash and a space.
1503 if (column == 0 && forwflg && (dashstuff >= 0) && ch == '-') {
1512 if (column >= wid && (flags & NOWRAP) == 0) {
1513 putch ('\n', flags);
1516 putstr (ovtxt ? ovtxt : "", flags);
1532 longjmp (env, DONE);
1557 face_format (struct mcomp *c1)
1560 struct mailname *mp;
1562 if ((cp = c1->c_text) == NULL)
1565 if ((cp = getname (cp))) {
1566 if ((mp = getm (cp, NULL, 0, AD_NAME, NULL))) {
1567 char *h = mp->m_host ? mp->m_host : LocalName (0);
1568 c1->c_face = concat ("address ", h, " ", mp->m_mbox, NULL);
1571 while ((cp = getname (cp)))
1578 * faceproc is two elements defining the image agent's location:
1583 #include <sys/socket.h>
1584 #include <netinet/in.h>
1586 #include <arpa/inet.h>
1589 doface (struct mcomp *c1)
1592 static int inited = OK;
1593 static struct sockaddr_storage ss;
1594 static socklen_t socklen;
1595 static int socktype;
1596 static int protocol;
1600 char **ap = brkstring (cp = getcpy (faceproc), " ", "\n");
1601 struct addrinfo hints, *res;
1603 if (ap[0] == NULL || ap[1] == NULL) {
1606 return (inited = NOTOK);
1609 memset(&hints, 0, sizeof(hints));
1610 #ifdef AI_ADDRCONFIG
1611 hints.ai_flags = AI_ADDRCONFIG;
1613 hints.ai_family = PF_UNSPEC;
1614 hints.ai_socktype = SOCK_DGRAM;
1616 if (getaddrinfo(ap[0], ap[1], &hints, &res) != 0)
1619 memcpy(&ss, res->ai_addr, res->ai_addrlen);
1620 socklen = res->ai_addrlen;
1621 socktype = res->ai_socktype;
1622 protocol = res->ai_protocol;
1627 if (inited == NOTOK)
1630 if ((sd = socket (ss.ss_family, socktype, protocol)) == NOTOK)
1633 result = sendto (sd, c1->c_text, strlen (c1->c_text), 0,
1634 (struct sockaddr *) &ss, socklen);
1638 return (result != NOTOK ? OK : NOTOK);
1643 * This version doesn't use sockets
1648 doface (struct mcomp *c1)
1652 int result, pdi[2], pdo[2];
1654 char buffer[BUFSIZ], *vec[10];
1656 if (pipe (pdi) == NOTOK)
1658 if (pipe (pdo) == NOTOK) {
1664 for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
1669 /* oops... fork error */
1674 SIGNAL (SIGINT, SIG_IGN);
1675 SIGNAL (SIGQUIT, SIG_IGN);
1676 if (pdi[0] != fileno (stdin)) {
1677 dup2 (pdi[0], fileno (stdin));
1682 if (pdo[1] != fileno (stdout)) {
1683 dup2 (pdo[1], fileno (stdout));
1687 vec[vecp++] = r1bindex (faceproc, '/');
1689 if (sleepsw != NOTOK) {
1691 snprintf (buffer, sizeof(buffer), "%d", sleepsw);
1692 vec[vecp++] = buffer;
1695 execvp (faceproc, vec);
1696 fprintf (stderr, "unable to exec ");
1698 _exit (-1); /* NOTREACHED */
1701 /* parent process */
1703 i = strlen (c1->c_text);
1704 if (write (pdi[1], c1->c_text, i) != i)
1705 adios ("pipe", "error writing to");
1706 free (c1->c_text), c1->c_text = NULL;
1712 while ((i = read (pdo[0], buffer, strlen (buffer))) > 0) {
1716 dp = mh_xrealloc (cp, (unsigned) (j = len + i));
1717 memcpy(dp + len, buffer, i);
1721 cp = mh_xmalloc ((unsigned) i);
1722 memcpy(cp, buffer, i);
1726 for (bp = buffer + i - 1; bp >= buffer; bp--)
1727 if (!isascii (*bp) || iscntrl (*bp)) {
1734 /* no waiting for child... */
1736 if (result == OK) { /* binary */
1737 if (write (1, cp, len) != len)
1738 adios ("writing", "error");
1742 if ((c1->c_text = cp) == NULL)
1749 #endif /* COMMENTED OUT */
1753 mhlsbr (int argc, char **argv, FILE *(*action)())
1755 SIGNAL_HANDLER istat = NULL, pstat = NULL, qstat = NULL;
1759 switch (m_setjmp (mhlenv)) {
1762 sleepsw = 0; /* XXX */
1763 bellflg = clearflg = forwflg = forwall = exitstat = 0;
1766 mhl_action = action;
1769 * If signal is at default action, then start ignoring
1770 * it, else let it set to its current action.
1772 if ((istat = SIGNAL (SIGINT, SIG_IGN)) != SIG_DFL)
1773 SIGNAL (SIGINT, istat);
1774 if ((qstat = SIGNAL (SIGQUIT, SIG_IGN)) != SIG_DFL)
1775 SIGNAL (SIGQUIT, qstat);
1776 pstat = SIGNAL (SIGPIPE, pipeser);
1777 mhl (argc, argv); /* FALL THROUGH! */
1780 SIGNAL (SIGINT, istat);
1781 SIGNAL (SIGQUIT, qstat);
1782 SIGNAL (SIGPIPE, SIG_IGN);/* should probably change to block instead */
1785 SIGNAL (SIGPIPE, pstat);
1787 if (holder.c_text) {
1788 free (holder.c_text);
1789 holder.c_text = NULL;
1791 free_queue (&msghd, &msgtl);
1792 for (c1 = fmthd; c1; c1 = c1->c_next)
1793 c1->c_flags &= ~HDROUTPUT;
1802 mhladios (char *what, char *fmt, ...)
1807 advertise (what, NULL, fmt, ap);
1814 mhldone (int status)
1818 longjmp (mhlenv, DONE);
1824 static int m_pid = NOTOK;
1825 static int sd = NOTOK;
1828 m_popen (char *name)
1832 if (mhl_action && (sd = dup (fileno (stdout))) == NOTOK)
1833 adios ("standard output", "unable to dup()");
1835 if (pipe (pd) == NOTOK)
1836 adios ("pipe", "unable to");
1838 switch (m_pid = vfork()) {
1840 adios ("fork", "unable to");
1843 SIGNAL (SIGINT, SIG_DFL);
1844 SIGNAL (SIGQUIT, SIG_DFL);
1847 if (pd[0] != fileno (stdin)) {
1848 dup2 (pd[0], fileno (stdin));
1851 execlp (name, r1bindex (name, '/'), NULL);
1852 fprintf (stderr, "unable to exec ");
1858 if (pd[1] != fileno (stdout)) {
1859 dup2 (pd[1], fileno (stdout));
1874 if (dup2 (sd, fileno (stdout)) == NOTOK)
1875 adios ("standard output", "unable to dup2()");
1884 pidwait (m_pid, OK);
1890 * Compile a format string and add it to the list of arguments used by
1893 * This deserves some explanation. Here's the deal:
1895 * We want to keep track of components used as arguments by formatproc,
1896 * but the hash table is reset every time fmt_compile is called. So we
1897 * iterate through the function list looking for things that use components
1898 * and save the name. And because we might get the same components used
1899 * by different arguments we need to keep track to every reference of
1900 * every component so we can add them when the message is processed. So
1901 * we compile the argument string now (to get the components we use) and
1902 * save them for later.
1906 compileargs (struct mcomp *c1, char *nfs)
1909 struct arglist *args;
1912 i = fmt_compile(nfs, &fmt);
1914 args = (struct arglist *) mh_xmalloc(sizeof(struct arglist));
1917 adios (NULL, "Unable to allocate formatproc args storage");
1920 args->a_nfs = format_string;
1921 args->a_next = NULL;
1923 format_string = NULL;
1926 c1->c_f_tail->a_next = args;
1928 c1->c_f_tail = args;
1931 c1->c_f_args = args;
1937 * If wantcomp ever changes size, we need to change the size
1938 * of mhlcomp as well
1941 for (i = 0; i < sizeof(wantcomp)/sizeof(wantcomp[0]); i++) {
1945 for (c = mhlcomp[i]; c->c_next != NULL; c = c->c_next)
1947 c->c_next = wantcomp[i];
1949 mhlcomp[i] = wantcomp[i];
1957 * Check to see if we are interested in a component. If we are, save
1962 checkcomp(char *name, char *buf)
1966 int bucket = CHASH(name);
1969 if ((c = mhlcomp[bucket])) {
1971 if (mh_strcasecmp(name, c->c_name) == 0) {
1974 i = strlen(c->c_text = strdup(buf)) - 1;
1975 if (c->c_text[i] == '\n')
1976 c->c_text[i] = '\0';
1978 i = strlen(cp = c->c_text) - 1;
1979 if (cp[i] == '\n') {
1980 if (c->c_type & CT_ADDR) {
1982 cp = add (",\n\t", cp);
1984 cp = add ("\t", cp);
1987 c->c_text = add (buf, cp);
1990 } while ((c = c->c_next));
1993 return found ? bucket : -1;
1997 * Add text to an existing component
2001 addcomp(int bucket, char *name, char *buf)
2006 c = mhlcomp[bucket];
2008 if (mh_strcasecmp(name, c->c_name) == 0)
2009 c->c_text = add (buf, c->c_text);
2010 } while ((c = c->c_next));
2015 * Free up saved component structures
2021 struct comp *c1, *c2;
2024 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) {
2025 if ((c1 = mhlcomp[i]))
2026 for (; c1; c1 = c2) {
2036 * Just free up the component text.
2045 for (i = 0; i < sizeof(mhlcomp)/sizeof(mhlcomp[0]); i++) {
2046 if ((c1 = mhlcomp[i]))
2047 for (; c1; c1 = c1->c_next) {
2057 * Filter the body of a message through a specified format program
2061 filterbody (struct mcomp *c1, char *buf, int bufsz, int state, FILE *fp)
2063 struct mcomp holder;
2065 int fdinput[2], fdoutput[2], waitstat;
2067 pid_t writerpid, filterpid;
2070 * Create pipes so we can communicate with our filter process.
2073 if (pipe(fdinput) < 0) {
2074 adios(NULL, "Unable to create input pipe");
2077 if (pipe(fdoutput) < 0) {
2078 adios(NULL, "Unable to create output pipe");
2082 * Here's what we're doing to do.
2084 * - Fork ourselves and start writing data to the write side of the
2085 * input pipe (fdinput[1]).
2087 * - Fork and exec our filter program. We set the standard input of
2088 * our filter program to be the read side of our input pipe (fdinput[0]).
2089 * Standard output is set to the write side of our output pipe
2092 * - We read from the read side of the output pipe (fdoutput[0]).
2094 * We're forking because that's the simplest way to prevent any deadlocks.
2095 * (without doing something like switching to non-blocking I/O and using
2096 * select or poll, and I'm not interested in doing that).
2099 switch (writerpid = fork()) {
2102 * Our child process - just write to the filter input (fdinput[1]).
2103 * Close all other descriptors that we don't need.
2111 * Call m_getfld() until we're no longer in the BODY state
2114 while (state == BODY) {
2115 write(fdinput[1], buf, strlen(buf));
2116 state = m_getfld(state, name, buf, bufsz, fp);
2120 * We should be done; time to exit.
2125 * Make sure we call _exit(), otherwise we may flush out the stdio
2126 * buffers that we have duplicated from the parent.
2131 adios(NULL, "Unable to fork for filter writer process");
2136 * Fork and exec() our filter program, after redirecting standard in
2137 * and standard out appropriately.
2140 switch (filterpid = fork()) {
2147 * Allocate an argument array for us
2150 args = (char **) mh_xmalloc((c1->c_nargs + 2) * sizeof(char *));
2151 args[0] = formatproc;
2152 args[c1->c_nargs + 1] = NULL;
2160 * Pull out each argument and scan them.
2163 for (a = c1->c_f_args, i = 1; a != NULL; a = a->a_next, i++) {
2164 args[i] = mh_xmalloc(BUFSIZ);
2165 fmt_scan(a->a_fmt, args[i], BUFSIZ, dat);
2167 * fmt_scan likes to put a trailing newline at the end of the
2168 * format string. If we have one, get rid of it.
2170 s = strlen(args[i]);
2171 if (args[i][s - 1] == '\n')
2172 args[i][s - 1] = '\0';
2175 if (dup2(fdinput[0], STDIN_FILENO) < 0) {
2176 adios("formatproc", "Unable to dup2() standard input");
2178 if (dup2(fdoutput[1], STDOUT_FILENO) < 0) {
2179 adios("formatproc", "Unable to dup2() standard output");
2183 * Close everything (especially the old input and output
2184 * descriptors, since they've been dup'd to stdin and stdout),
2185 * and exec the formatproc.
2193 execvp(formatproc, args);
2195 adios(formatproc, "Unable to execute filter");
2200 adios(NULL, "Unable to fork format program");
2204 * Close everything except our reader (fdoutput[0]);
2212 * As we read in this data, send it to putcomp
2215 holder.c_text = buf;
2217 while ((cc = read(fdoutput[0], buf, bufsz - 1)) > 0) {
2219 putcomp(c1, &holder, BODYCOMP);
2223 adios(NULL, "reading from formatproc");
2227 * See if we got any errors along the way. I'm a little leery of calling
2228 * waitpid() without WNOHANG, but it seems to be the most correct solution.
2231 if (waitpid(filterpid, &waitstat, 0) < 0) {
2232 if (errno != ECHILD) {
2233 adios("filterproc", "Unable to determine status");
2236 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
2237 pidstatus(waitstat, stderr, "filterproc");
2241 if (waitpid(writerpid, &waitstat, 0) < 0) {
2242 if (errno != ECHILD) {
2243 adios("writer process", "Unable to determine status");
2247 if (! (WIFEXITED(waitstat) && WEXITSTATUS(waitstat) == 0)) {
2248 pidstatus(waitstat, stderr, "writer process");