2 ** mhl.c -- the nmh message listing program
4 ** This code is Copyright (c) 2002, by the authors of nmh. See the
5 ** COPYRIGHT file in the root directory of the nmh distribution for
6 ** complete copyright information.
10 #include <h/signals.h>
11 #include <h/addrsbr.h>
12 #include <h/fmt_scan.h>
20 ** for a component containing addresses, ADDRFMT, if COMPRESS is also
21 ** set, then addresses get split wrong (not at the spaces between commas).
22 ** To fix this correctly, putstr() should know about "atomic" strings that
23 ** must NOT be broken across lines. That's too difficult for right now
24 ** (it turns out that there are a number of degernate cases), so in
25 ** oneline(), instead of
27 ** (*onelp == '\n' && !onelp[1])
29 ** being a terminating condition,
31 ** (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT)))
33 ** is used instead. This cuts the line prematurely, and gives us a much
34 ** better chance of getting things right.
43 static struct swit mhlswitches[] = {
45 { "folder +folder", 0 },
47 { "form formfile", 0 },
49 { "width columns", 0 },
51 { "sleep seconds", 0 },
61 { "digest list", -6 },
63 { "volume number", -6 },
65 { "issue number", -5 },
71 #define NOCOMPONENT 0x000001 /* don't show component name */
72 #define UPPERCASE 0x000002 /* display in all upper case */
73 #define CENTER 0x000004 /* center line */
74 #define CLEARTEXT 0x000008 /* cleartext */
75 #define EXTRA 0x000010 /* an "extra" component */
76 #define HDROUTPUT 0x000020 /* already output */
77 #define LEFTADJUST 0x000040 /* left justify multiple lines */
78 #define COMPRESS 0x000080 /* compress text */
79 #define ADDRFMT 0x000100 /* contains addresses */
80 #define DATEFMT 0x000200 /* contains dates */
81 #define FORMAT 0x000400 /* parse address/date/RFC-2047 field */
82 #define INIT 0x000800 /* initialize component */
83 #define SPLIT 0x001000 /* split headers (don't concatenate) */
84 #define NONEWLINE 0x002000 /* don't write trailing newline */
85 #define LBITS "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07LEFTADJUST\010COMPRESS\011ADDRFMT\012DATEFMT\013FORMAT\014INIT\015SPLIT\016NONEWLINE"
86 #define GFLAGS (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT)
89 char *c_name; /* component name */
90 char *c_text; /* component text */
91 char *c_ovtxt; /* text overflow indicator */
92 char *c_fstr; /* iff FORMAT */
93 struct format *c_fmt; /* .. */
94 int c_offset; /* left margin indentation */
95 int c_ovoff; /* overflow indentation */
96 int c_width; /* width of field */
97 int c_cwidth; /* width of component */
102 static struct mcomp *msghd = NULL;
103 static struct mcomp *msgtl = NULL;
104 static struct mcomp *fmthd = NULL;
105 static struct mcomp *fmttl = NULL;
107 static struct mcomp global = {
108 NULL, NULL, "", NULL, NULL, 0, -1, 80, -1, 0, 0
111 static struct mcomp holder = {
112 NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, NOCOMPONENT, 0
120 static struct pair pairs[] = {
123 { "Sender", ADDRFMT },
124 { "Reply-To", ADDRFMT },
128 { "Resent-Date", DATEFMT },
129 { "Resent-From", ADDRFMT },
130 { "Resent-Sender", ADDRFMT },
131 { "Resent-Reply-To", ADDRFMT },
132 { "Resent-To", ADDRFMT },
133 { "Resent-Cc", ADDRFMT },
134 { "Resent-Bcc", ADDRFMT },
144 static struct triple triples[] = {
145 { "nocomponent", NOCOMPONENT, 0 },
146 { "uppercase", UPPERCASE, 0 },
147 { "nouppercase", 0, UPPERCASE },
148 { "center", CENTER, 0 },
149 { "nocenter", 0, CENTER },
150 { "leftadjust", LEFTADJUST, 0 },
151 { "noleftadjust", 0, LEFTADJUST },
152 { "compress", COMPRESS, 0 },
153 { "nocompress", 0, COMPRESS },
154 { "split", SPLIT, 0 },
155 { "nosplit", 0, SPLIT },
156 { "addrfield", ADDRFMT, DATEFMT },
157 { "datefield", DATEFMT, ADDRFMT },
158 { "newline", 0, NONEWLINE },
159 { "nonewline", NONEWLINE, 0 },
164 static int dobody = 1;
165 static int forwflg = 0;
166 static int forwall = 0;
168 static int sleepsw = NOTOK;
170 static char *digest = NULL;
171 static int volume = 0;
172 static int issue = 0;
174 static int exitstat = 0;
175 static int mhldebug = 0;
179 static int ontty = NOTTY;
190 static unsigned char *onelp;
194 static int num_ignores = 0;
195 static char *ignores[MAXARGS];
198 static jmp_buf mhlenv;
200 static char delim3[] =
201 "\n----------------------------------------------------------------------\n\n";
202 static char delim4[] = "\n------------------------------\n\n";
204 static FILE *(*mhl_action) () = (FILE *(*) ()) 0;
208 ** Redefine a couple of functions.
209 ** These are undefined later in the code.
211 #define adios mhladios
217 static void mhl_format(char *, int);
218 static int evalvar(struct mcomp *);
219 static int ptoi(char *, int *);
220 static int ptos(char *, char **);
221 static char *parse(void);
222 static void process(char *, char *, int, int);
223 static void mhlfile(FILE *, char *, int, int);
224 static int mcomp_flags(char *);
225 static char *mcomp_add(long, char *, char *);
226 static void mcomp_format(struct mcomp *, struct mcomp *);
227 static struct mcomp *add_queue(struct mcomp **, struct mcomp **,
228 char *, char *, int);
229 static void free_queue(struct mcomp **, struct mcomp **);
230 static void putcomp(struct mcomp *, struct mcomp *, int);
231 static char *oneline(char *, long);
232 static void putstr(char *);
233 static void putch(char);
234 static RETSIGTYPE intrser(int);
235 static RETSIGTYPE pipeser(int);
236 static RETSIGTYPE quitser(int);
237 static void mhladios(char *, char *, ...);
238 static void mhldone(int);
239 static void m_popen(char *);
243 int sc_width(void); /* from termsbr.c */
247 main(int argc, char **argv)
249 int i, width = 0, vecp = 0;
250 char *cp, *folder = NULL, *form = NULL;
251 char buf[BUFSIZ], *files[MAXARGS];
252 char **argp, **arguments;
255 setlocale(LC_ALL, "");
258 invo_name = mhbasename(argv[0]);
260 /* read user profile/context */
263 arguments = getarguments(invo_name, argc, argv, 1);
266 if ((cp = getenv("MHLDEBUG")) && *cp)
269 while ((cp = *argp++)) {
271 switch (smatch(++cp, mhlswitches)) {
273 ambigsw(cp, mhlswitches);
276 adios(NULL, "-%s unknown\n", cp);
279 snprintf(buf, sizeof(buf), "%s [switches] [files ...]", invo_name);
280 print_help(buf, mhlswitches, 1);
283 print_version(invo_name);
287 if (!(folder = *argp++) || *folder == '-')
288 adios(NULL, "missing argument to %s",
292 if (!(form = *argp++) || *form == '-')
293 adios(NULL, "missing argument to %s",
298 if (!(cp = *argp++) || *cp == '-')
299 adios(NULL, "missing argument to %s",
301 sleepsw = atoi(cp); /* ZERO ok! */
305 if (!(cp = *argp++) || *cp == '-')
306 adios(NULL, "missing argument to %s",
308 if ((width = atoi(cp)) < 1)
309 adios(NULL, "bad argument %s %s",
314 if (!(digest = *argp++) ||
316 adios(NULL, "missing argument to %s",
320 if (!(cp = *argp++) || *cp == '-')
321 adios(NULL, "missing argument to %s",
323 if ((issue = atoi(cp)) < 1)
324 adios(NULL, "bad argument %s %s",
328 if (!(cp = *argp++) || *cp == '-')
329 adios(NULL, "missing argument to %s",
331 if ((volume = atoi(cp)) < 1)
332 adios(NULL, "bad argument %s %s",
337 forwall++; /* fall */
351 folder = getenv("mhfolder");
353 if (isatty(fileno(stdout))) {
355 SIGNAL(SIGINT, SIG_IGN);
356 SIGNAL2(SIGQUIT, quitser);
358 SIGNAL2(SIGPIPE, pipeser);
359 m_popen(defaultpager);
365 mhl_format(form ? form : mhlformat, width);
368 process(folder, NULL, 1, vecp = 1);
370 for (i = 0; i < vecp; i++)
371 process(folder, files[i], i + 1, vecp);
376 printf("%s", delim4);
378 snprintf(buf, sizeof(buf),
379 "End of %s Digest\n", digest);
381 snprintf(buf, sizeof(buf), "End of %s Digest [Volume %d Issue %d]\n", digest, volume, issue);
384 for (cp = buf + i; i > 1; i--)
390 printf("\n------- End of Forwarded Message%s\n\n",
391 vecp > 1 ? "s" : "");
395 if (ferror(stdout)) {
396 adios("output", "error writing");
407 mhl_format(char *file, int width)
411 char *ap, buffer[BUFSIZ], name[NAMESZ];
415 static dev_t dev = 0;
416 static ino_t ino = 0;
417 static time_t mtime = 0;
420 if (stat(etcpath(file), &st) != NOTOK
421 && mtime == st.st_mtime
426 free_queue(&fmthd, &fmttl);
429 if ((fp = fopen(etcpath(file), "r")) == NULL)
430 adios(file, "unable to open format file");
432 if (fstat(fileno(fp), &st) != NOTOK) {
438 global.c_ovtxt = global.c_fstr = NULL;
442 if ((i = sc_width()) > 5)
444 global.c_cwidth = -1;
448 while (vfgets(fp, &ap) == OK) {
453 if ((cp = strchr(bp, '\n')))
457 c1 = add_queue(&fmthd, &fmttl, NULL, bp + 1,
463 strncpy(name, parse(), sizeof(name));
469 ** Split this list of fields to ignore, and copy
470 ** it to the end of the current "ignores" list.
472 if (!mh_strcasecmp(name, "ignores")) {
476 /* split the fields */
477 tmparray = brkstring(getcpy(++parptr), ",",
480 ** copy pointers to split fields
483 while (tmparray[n] && num_ignores<MAXARGS-1) {
484 ignores[num_ignores++] = tmparray[n++];
486 ignores[num_ignores] = NULL;
491 if (evalvar(&global))
492 adios(NULL, "format file syntax error: %s", bp);
499 c1 = add_queue(&fmthd, &fmttl, name, NULL, INIT);
500 while (*parptr == ':' || *parptr == ',') {
503 adios(NULL, "format file syntax error: %s", bp);
505 if (!c1->c_fstr && global.c_fstr) {
506 if ((c1->c_flags & DATEFMT) &&
507 (global.c_flags & DATEFMT)) {
508 c1->c_fstr = getcpy(global.c_fstr);
509 } else if ((c1->c_flags & ADDRFMT) &&
510 (global.c_flags & ADDRFMT)) {
511 c1->c_fstr = getcpy(global.c_fstr);
517 adios(NULL, "format file syntax error: %s", bp);
523 for (c1 = fmthd; c1; c1 = c1->c_next) {
524 fprintf(stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n", c1->c_name, c1->c_text, c1->c_ovtxt);
525 fprintf(stderr, "\tfstr=0x%x fmt=0x%x\n", (unsigned int)(unsigned long) c1->c_fstr, (unsigned int)(unsigned long) c1->c_fmt);
526 fprintf(stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d\n", c1->c_offset, c1->c_ovoff, c1->c_width, c1->c_cwidth);
527 fprintf (stderr, "\tflags=%s\n", snprintb(buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
533 global.c_width = width;
534 if (global.c_width < 5)
535 global.c_width = 10000;
540 evalvar(struct mcomp *c1)
542 char *cp, name[NAMESZ];
547 strncpy(name, parse(), sizeof(name));
549 if (!mh_strcasecmp(name, "component")) {
550 if (ptos(name, &c1->c_text))
552 c1->c_flags &= ~NOCOMPONENT;
556 if (!mh_strcasecmp(name, "overflowtext"))
557 return ptos(name, &c1->c_ovtxt);
559 if (!mh_strcasecmp(name, "formatfield")) {
564 cp = concat("=", cp, NULL);
565 fmtstr = new_fs(cp, NULL);
567 c1->c_fstr = getcpy(fmtstr);
568 c1->c_flags |= FORMAT;
572 if (!mh_strcasecmp(name, "decode")) {
575 fmtstr = new_fs("=%(decode{text})", NULL);
576 c1->c_fstr = getcpy(fmtstr);
577 c1->c_flags |= FORMAT;
581 if (!mh_strcasecmp(name, "offset"))
582 return ptoi(name, &c1->c_offset);
583 if (!mh_strcasecmp(name, "overflowoffset"))
584 return ptoi(name, &c1->c_ovoff);
585 if (!mh_strcasecmp(name, "width"))
586 return ptoi(name, &c1->c_width);
587 if (!mh_strcasecmp(name, "compwidth"))
588 return ptoi(name, &c1->c_cwidth);
590 for (ap = triples; ap->t_name; ap++)
591 if (!mh_strcasecmp(ap->t_name, name)) {
592 c1->c_flags |= ap->t_on;
593 c1->c_flags &= ~ap->t_off;
602 ptoi(char *name, int *i)
606 if (*parptr++ != '=' || !*(cp = parse())) {
607 advise(NULL, "missing argument to variable %s", name);
617 ptos(char *name, char **s)
621 if (*parptr++ != '=') {
622 advise(NULL, "missing argument to variable %s", name);
626 if (*parptr != '"') {
627 for (cp = parptr; *parptr && *parptr != ':' && *parptr != ',';
631 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
632 if (*parptr == QUOTE)
639 if ((*parptr = c) == '"')
650 static char result[NAMESZ];
652 for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
671 process(char *folder, char *fname, int ofilen, int ofilec)
677 switch (setjmp(env)) {
680 fp = mhl_action ? (*mhl_action) (fname) :
683 advise(fname, "unable to open");
691 cp = folder ? concat(folder, ":", fname, NULL) : getcpy(fname);
693 SIGNAL(SIGINT, intrser);
694 mhlfile(fp, cp, ofilen, ofilec);
698 SIGNAL(SIGINT, SIG_IGN);
699 if (mhl_action == NULL && fp != stdin)
704 holder.c_text = NULL;
706 free_queue(&msghd, &msgtl);
707 for (c1 = fmthd; c1; c1 = c1->c_next)
708 c1->c_flags &= ~HDROUTPUT;
715 mhlfile(FILE *fp, char *mname, int ofilen, int ofilec)
718 struct mcomp *c1, *c2, *c3;
719 char **ip, name[NAMESZ], buf[BUFSIZ];
723 printf("%s", ofilen == 1 ? delim3 : delim4);
727 printf(" Forwarded Message%s",
728 ofilec > 1 ? "s" : "");
730 printf(" Message %d", ofilen);
733 } else if (ofilec > 1) {
737 printf(">>> %s\n\n", mname);
740 for (state = FLD;;) {
741 switch (state = m_getfld(state, name, buf, sizeof(buf), fp)) {
744 for (ip = ignores; *ip; ip++)
745 if (!mh_strcasecmp(name, *ip)) {
746 while (state == FLDPLUS)
747 state = m_getfld(state, name, buf, sizeof(buf), fp);
753 for (c2 = fmthd; c2; c2 = c2->c_next)
754 if (!mh_strcasecmp(c2->c_name, name))
757 if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
758 for (c1 = msghd; c1; c1 = c1->c_next)
759 if (!mh_strcasecmp(c1->c_name,
761 c1->c_text = mcomp_add(c1->c_flags, buf, c1->c_text);
765 c1 = add_queue(&msghd, &msgtl, name, buf, 0);
766 while (state == FLDPLUS) {
767 state = m_getfld(state, name, buf,
769 c1->c_text = add(buf, c1->c_text);
772 c1->c_flags |= EXTRA;
778 for (c1 = fmthd; c1; c1 = c1->c_next) {
779 if (c1->c_flags & CLEARTEXT) {
780 putcomp(c1, c1, ONECOMP);
783 if (!mh_strcasecmp(c1->c_name, "messagename")) {
784 holder.c_text = concat("(Message ",
786 putcomp(c1, &holder, ONECOMP);
788 holder.c_text = NULL;
791 if (!mh_strcasecmp(c1->c_name, "extras")) {
792 for (c2 = msghd; c2; c2 = c2->c_next)
793 if (c2->c_flags & EXTRA)
794 putcomp(c1, c2, TWOCOMP);
797 if (dobody && !mh_strcasecmp(c1->c_name, "body")) {
798 holder.c_text = mh_xmalloc(sizeof(buf));
799 strncpy(holder.c_text, buf, sizeof(buf));
800 while (state == BODY) {
801 putcomp(c1, &holder, BODYCOMP);
802 state = m_getfld(state, name, holder.c_text, sizeof(buf), fp);
805 holder.c_text = NULL;
808 for (c2 = msghd; c2; c2 = c2->c_next)
809 if (!mh_strcasecmp(c2->c_name,
811 putcomp(c1, c2, ONECOMP);
812 if (!(c1->c_flags & SPLIT))
820 advise(NULL, "format error in message %s", mname);
825 adios(NULL, "getfld() returned %d", state);
832 mcomp_flags(char *name)
836 for (ap = pairs; ap->p_name; ap++)
837 if (!mh_strcasecmp(ap->p_name, name))
838 return (ap->p_flags);
845 mcomp_add(long flags, char *s1, char *s2)
849 if (!(flags & ADDRFMT))
852 if (s2 && *(dp = s2 + strlen(s2) - 1) == '\n')
855 return add(s1, add(",\n", s2));
862 struct pqpair *pq_next;
867 mcomp_format(struct mcomp *c1, struct mcomp *c2)
871 char buffer[BUFSIZ], error[BUFSIZ];
873 struct pqpair *p, *q;
882 dat[3] = sizeof(buffer) - 1;
884 fmt_compile(c1->c_fstr, &c1->c_fmt);
886 if (!(c1->c_flags & ADDRFMT)) {
887 FINDCOMP(cptr, "text");
890 if ((cp = strrchr(ap, '\n'))) /* drop ending newline */
894 fmt_scan(c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
895 /* Don't need to append a newline, dctime() already did */
896 c2->c_text = getcpy(buffer);
902 (q = &pq)->pq_next = NULL;
903 while ((cp = getname(ap))) {
904 if ((p = (struct pqpair *)
905 calloc((size_t) 1, sizeof(*p))) == NULL)
906 adios(NULL, "unable to allocate pqpair memory");
908 if ((mp = getm(cp, NULL, 0, AD_NAME, error)) == NULL) {
909 p->pq_text = getcpy(cp);
910 p->pq_error = getcpy(error);
912 p->pq_text = getcpy(mp->m_text);
915 q = (q->pq_next = p);
918 for (p = pq.pq_next; p; p = q) {
919 FINDCOMP(cptr, "text");
921 cptr->c_text = p->pq_text;
922 FINDCOMP(cptr, "error");
924 cptr->c_text = p->pq_error;
926 fmt_scan(c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
929 c2->c_text = add(",\n", c2->c_text);
930 if (*(cp = buffer + strlen(buffer) - 1) == '\n')
932 c2->c_text = add(buffer, c2->c_text);
942 c2->c_text = add("\n", c2->c_text);
947 static struct mcomp *
948 add_queue(struct mcomp **head, struct mcomp **tail, char *name,
949 char *text, int flags)
953 if ((c1 = (struct mcomp *) calloc((size_t) 1, sizeof(*c1))) == NULL)
954 adios(NULL, "unable to allocate comp memory");
956 c1->c_flags = flags & ~INIT;
957 if ((c1->c_name = name ? getcpy(name) : NULL))
958 c1->c_flags |= mcomp_flags(c1->c_name);
959 c1->c_text = text ? getcpy(text) : NULL;
962 c1->c_ovtxt = getcpy(global.c_ovtxt);
963 c1->c_offset = global.c_offset;
964 c1->c_ovoff = global. c_ovoff;
966 c1->c_cwidth = global.c_cwidth;
967 c1->c_flags |= global.c_flags & GFLAGS;
972 (*tail)->c_next = c1;
980 free_queue(struct mcomp **head, struct mcomp **tail)
982 struct mcomp *c1, *c2;
984 for (c1 = *head; c1; c1 = c2) {
995 free((char *) c1->c_fmt);
999 *head = *tail = NULL;
1004 putcomp(struct mcomp *c1, struct mcomp *c2, int flag)
1011 wid = c1->c_width ? c1->c_width : global.c_width;
1012 ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1014 if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1016 if (wid < ovoff + strlen(ovtxt) + 5)
1017 adios(NULL, "component: %s width(%d) too small for overflow(%d)", c1->c_name, wid, ovoff + strlen(ovtxt) + 5);
1020 if (c1->c_flags & CLEARTEXT) {
1026 if (c1->c_fstr && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1027 mcomp_format(c1, c2);
1029 if (c1->c_flags & CENTER) {
1030 count = (c1->c_width ? c1->c_width : global.c_width)
1031 - c1->c_offset - strlen(c2->c_text);
1032 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1033 count -= strlen(c1->c_text ? c1->c_text : c1->c_name)
1035 lm = c1->c_offset + (count / 2);
1041 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1042 if (c1->c_flags & UPPERCASE) /* uppercase component also */
1043 for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1046 putstr(c1->c_text ? c1->c_text : c1->c_name);
1047 if (flag != BODYCOMP) {
1049 if (!(c1->c_flags & SPLIT))
1050 c1->c_flags |= HDROUTPUT;
1053 if ((count = c1->c_cwidth -
1054 strlen(c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1058 c1->c_flags |= HDROUTPUT; /* for BODYCOMP */
1061 if (flag == TWOCOMP && !(c2->c_flags & HDROUTPUT)
1062 && !(c2->c_flags & NOCOMPONENT)) {
1063 if (c1->c_flags & UPPERCASE)
1064 for (cp = c2->c_name; *cp; cp++)
1069 if (!(c1->c_flags & SPLIT))
1070 c2->c_flags |= HDROUTPUT;
1073 if ((count = c1->c_cwidth - strlen(c2->c_name) - 2) > 0)
1077 if (c1->c_flags & UPPERCASE)
1078 for (cp = c2->c_text; *cp; cp++)
1084 if (flag == TWOCOMP)
1085 count = (c1->c_cwidth >= 0) ?
1086 c1->c_cwidth : strlen(c2->c_name) + 2;
1088 count = (c1->c_cwidth >= 0) ?
1089 c1->c_cwidth : strlen(c1->c_text ?
1090 c1->c_text : c1->c_name) + 2;
1092 count += c1->c_offset;
1094 if ((cp = oneline(c2->c_text, c1->c_flags)))
1098 while ((cp = oneline(c2->c_text, c1->c_flags))) {
1100 if (flag == BODYCOMP && !(c1->c_flags & NOCOMPONENT))
1101 putstr(c1->c_text ? c1->c_text : c1->c_name);
1107 if (flag == BODYCOMP && term == '\n')
1108 c1->c_flags &= ~HDROUTPUT; /* Buffer ended on a newline */
1113 oneline(char *stuff, long flags)
1121 return (onelp = NULL);
1125 if (flags & COMPRESS) {
1126 for (spc = 1, cp = ret; *onelp; onelp++)
1127 if (isspace(*onelp)) {
1128 if (*onelp == '\n' &&
1130 (flags & ADDRFMT))) {
1145 while (*onelp && *onelp != '\n')
1147 if (*onelp == '\n') {
1151 if (flags & LEFTADJUST)
1152 while (*ret == ' ' || *ret == '\t')
1155 if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1163 putstr(char *string)
1165 if (!column && lm > 0) {
1201 ** If we are forwarding this message, and the first
1202 ** column contains a dash, then add a dash and a space.
1204 if (column == 0 && forwflg && ch == '-') {
1213 if (column >= wid) {
1217 putstr(ovtxt ? ovtxt : "");
1229 #ifndef RELIABLE_SIGNALS
1230 SIGNAL(SIGINT, intrser);
1242 #ifndef RELIABLE_SIGNALS
1243 SIGNAL(SIGPIPE, pipeser);
1253 #ifndef RELIABLE_SIGNALS
1254 SIGNAL(SIGQUIT, quitser);
1267 mhladios(char *what, char *fmt, ...)
1272 advertise(what, NULL, fmt, ap);
1283 longjmp(mhlenv, DONE);
1289 static int m_pid = NOTOK;
1290 static int sd = NOTOK;
1297 if (mhl_action && (sd = dup(fileno(stdout))) == NOTOK)
1298 adios("standard output", "unable to dup()");
1300 if (pipe(pd) == NOTOK)
1301 adios("pipe", "unable to");
1303 switch (m_pid = fork()) {
1305 adios("fork", "unable to");
1308 SIGNAL(SIGINT, SIG_DFL);
1309 SIGNAL(SIGQUIT, SIG_DFL);
1312 if (pd[0] != fileno(stdin)) {
1313 dup2(pd[0], fileno(stdin));
1316 execlp(name, mhbasename(name), NULL);
1317 fprintf(stderr, "unable to exec ");
1323 if (pd[1] != fileno(stdout)) {
1324 dup2(pd[1], fileno(stdout));
1339 if (dup2(sd, fileno(stdout)) == NOTOK)
1340 adios("standard output", "unable to dup2()");