git.marmaro.de Git - mmh/blob - uip/mhl.c

   1 /*
   2 ** mhl.c -- the nmh message listing program
   3 **
   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.
   7 */
   8
   9 #include <h/mh.h>
  10 #include <h/signals.h>
  11 #include <h/addrsbr.h>
  12 #include <h/fmt_scan.h>
  13 #include <h/tws.h>
  14 #include <h/utils.h>
  15 #include <setjmp.h>
  16 #include <signal.h>
  17
  18 /*
  19 ** MAJOR BUG:
  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
  26 **
  27 **       (*onelp == '\n' && !onelp[1])
  28 **
  29 ** being a terminating condition,
  30 **
  31 **       (*onelp == '\n' && (!onelp[1] || (flags & ADDRFMT)))
  32 **
  33 ** is used instead.  This cuts the line prematurely, and gives us a much
  34 ** better chance of getting things right.
  35 */
  36
  37 #define ONECOMP  0
  38 #define TWOCOMP  1
  39 #define BODYCOMP 2
  40
  41 #define QUOTE  '\\'
  42
  43 static struct swit mhlswitches[] = {
  44 #define CLRSW  0
  45         { "clear", 0 },
  46 #define NCLRSW  1
  47         { "noclear", 0 },
  48 #define FOLDSW  2
  49         { "folder +folder", 0 },
  50 #define FORMSW  3
  51         { "form formfile", 0 },
  52 #define PROGSW  4
  53         { "moreproc program", 0 },
  54 #define LENSW  5
  55         { "length lines", 0 },
  56 #define WIDTHSW  6
  57         { "width columns", 0 },
  58 #define SLEEPSW  7
  59         { "sleep seconds",  0 },
  60 #define VERSIONSW  8
  61         { "version", 0 },
  62 #define HELPSW  9
  63         { "help", 0 },
  64 #define FORW1SW  10
  65         { "forward", -7 },
  66 #define FORW2SW  11
  67         { "forwall", -7 },
  68 #define DGSTSW  12
  69         { "digest list", -6 },
  70 #define VOLUMSW  13
  71         { "volume number", -6 },
  72 #define ISSUESW  14
  73         { "issue number", -5 },
  74 #define NBODYSW  15
  75         { "nobody", -6 },
  76         { NULL, 0 }
  77 };
  78
  79 #define NOCOMPONENT 0x000001  /* don't show component name   */
  80 #define UPPERCASE   0x000002  /* display in all upper case   */
  81 #define CENTER      0x000004  /* center line                 */
  82 #define CLEARTEXT   0x000008  /* cleartext                   */
  83 #define EXTRA       0x000010  /* an "extra" component        */
  84 #define HDROUTPUT   0x000020  /* already output              */
  85 #define CLEARSCR    0x000040  /* clear screen                */
  86 #define LEFTADJUST  0x000080  /* left justify multiple lines */
  87 #define COMPRESS    0x000100  /* compress text               */
  88 #define ADDRFMT     0x000200  /* contains addresses          */
  89 #define DATEFMT     0x000400  /* contains dates              */
  90 #define FORMAT      0x000800  /* parse address/date/RFC-2047 field */
  91 #define INIT        0x001000  /* initialize component        */
  92 #define SPLIT       0x002000  /* split headers (don't concatenate) */
  93 #define NONEWLINE   0x004000  /* don't write trailing newline */
  94 #define LBITS       "\020\01NOCOMPONENT\02UPPERCASE\03CENTER\04CLEARTEXT\05EXTRA\06HDROUTPUT\07CLEARSCR\010LEFTADJUST\011COMPRESS\012ADDRFMT\013DATEFMT\014FORMAT\015INIT\016SPLIT\017NONEWLINE"
  95 #define GFLAGS      (NOCOMPONENT | UPPERCASE | CENTER | LEFTADJUST | COMPRESS | SPLIT)
  96
  97 struct mcomp {
  98         char *c_name;  /* component name */
  99         char *c_text;  /* component text */
 100         char *c_ovtxt; /* text overflow indicator */
 101         char *c_nfs;   /* iff FORMAT */
 102         struct format *c_fmt;  /*  .. */
 103         int c_offset;  /* left margin indentation */
 104         int c_ovoff;   /* overflow indentation */
 105         int c_width;   /* width of field */
 106         int c_cwidth;  /* width of component */
 107         int c_length;  /* length in lines */
 108         long c_flags;
 109         struct mcomp *c_next;
 110 };
 111
 112 static struct mcomp *msghd = NULL;
 113 static struct mcomp *msgtl = NULL;
 114 static struct mcomp *fmthd = NULL;
 115 static struct mcomp *fmttl = NULL;
 116
 117 static struct mcomp global = {
 118         NULL, NULL, "", NULL, NULL, 0, -1, 80, -1, 40, 0, 0
 119 };
 120
 121 static struct mcomp holder = {
 122         NULL, NULL, NULL, NULL, NULL, 0, 0, 0, 0, 0, NOCOMPONENT, 0
 123 };
 124
 125 struct pair {
 126         char *p_name;
 127         long p_flags;
 128 };
 129
 130 static struct pair pairs[] = {
 131         { "Date", DATEFMT },
 132         { "From", ADDRFMT },
 133         { "Sender", ADDRFMT },
 134         { "Reply-To", ADDRFMT },
 135         { "To", ADDRFMT },
 136         { "Cc", ADDRFMT },
 137         { "Bcc", ADDRFMT },
 138         { "Resent-Date", DATEFMT },
 139         { "Resent-From", ADDRFMT },
 140         { "Resent-Sender", ADDRFMT },
 141         { "Resent-Reply-To", ADDRFMT },
 142         { "Resent-To", ADDRFMT },
 143         { "Resent-Cc", ADDRFMT },
 144         { "Resent-Bcc", ADDRFMT },
 145         { NULL, 0 }
 146 };
 147
 148 struct triple {
 149         char *t_name;
 150         long t_on;
 151         long t_off;
 152 };
 153
 154 static struct triple triples[] = {
 155         { "nocomponent",  NOCOMPONENT, 0 },
 156         { "uppercase", UPPERCASE, 0 },
 157         { "nouppercase", 0, UPPERCASE },
 158         { "center", CENTER, 0 },
 159         { "nocenter", 0, CENTER },
 160         { "clearscreen", CLEARSCR, 0 },
 161         { "noclearscreen", 0, CLEARSCR },
 162         { "noclear", 0, CLEARSCR },
 163         { "leftadjust", LEFTADJUST, 0 },
 164         { "noleftadjust", 0, LEFTADJUST },
 165         { "compress", COMPRESS, 0 },
 166         { "nocompress", 0, COMPRESS },
 167         { "split", SPLIT, 0 },
 168         { "nosplit", 0, SPLIT },
 169         { "addrfield", ADDRFMT, DATEFMT },
 170         { "datefield", DATEFMT, ADDRFMT },
 171         { "newline", 0, NONEWLINE },
 172         { "nonewline", NONEWLINE, 0 },
 173         { NULL, 0, 0 }
 174 };
 175
 176
 177 static int clearflg  = 0;
 178 static int dobody    = 1;
 179 static int forwflg   = 0;
 180 static int forwall   = 0;
 181
 182 static int sleepsw = NOTOK;
 183
 184 static char *digest = NULL;
 185 static int volume = 0;
 186 static int issue = 0;
 187
 188 static int exitstat = 0;
 189 static int mhldebug = 0;
 190
 191 #define PITTY  (-1)
 192 #define NOTTY  0
 193 static int ontty = NOTTY;
 194
 195 static int row;
 196 static int column;
 197
 198 static int lm;
 199 static int llim;
 200 static int ovoff;
 201 static int term;
 202 static int wid;
 203
 204 static char *ovtxt;
 205
 206 static unsigned char *onelp;
 207
 208 static char *parptr;
 209
 210 static int num_ignores = 0;
 211 static char *ignores[MAXARGS];
 212
 213 static  jmp_buf env;
 214 static  jmp_buf mhlenv;
 215
 216 static char delim3[] =
 217 "\n----------------------------------------------------------------------\n\n";
 218 static char delim4[] = "\n------------------------------\n\n";
 219
 220 static FILE *(*mhl_action) () = (FILE *(*) ()) 0;
 221
 222
 223 /*
 224 ** Redefine a couple of functions.
 225 ** These are undefined later in the code.
 226 */
 227 #define adios mhladios
 228 #define done  mhldone
 229
 230 /*
 231 ** prototypes
 232 */
 233 static void mhl_format(char *, int, int);
 234 static int evalvar(struct mcomp *);
 235 static int ptoi(char *, int *);
 236 static int ptos(char *, char **);
 237 static char *parse(void);
 238 static void process(char *, char *, int, int);
 239 static void mhlfile(FILE *, char *, int, int);
 240 static int mcomp_flags(char *);
 241 static char *mcomp_add(long, char *, char *);
 242 static void mcomp_format(struct mcomp *, struct mcomp *);
 243 static struct mcomp *add_queue(struct mcomp **, struct mcomp **,
 244                 char *, char *, int);
 245 static void free_queue(struct mcomp **, struct mcomp **);
 246 static void putcomp(struct mcomp *, struct mcomp *, int);
 247 static char *oneline(char *, long);
 248 static void putstr(char *);
 249 static void putch(char);
 250 static RETSIGTYPE intrser(int);
 251 static RETSIGTYPE pipeser(int);
 252 static RETSIGTYPE quitser(int);
 253 static void mhladios(char *, char *, ...);
 254 static void mhldone(int);
 255 static void m_popen(char *);
 256
 257 void m_pclose(void);
 258
 259 void clear_screen(void);  /* from termsbr.c */
 260 int SOprintf(char *, ...);  /* from termsbr.c */
 261 int sc_width(void);  /* from termsbr.c */
 262 int sc_length(void);  /* from termsbr.c */
 263
 264
 265 int
 266 main(int argc, char **argv)
 267 {
 268         int length = 0;
 269         int i, width = 0, vecp = 0;
 270         char *cp, *folder = NULL, *form = NULL;
 271         char buf[BUFSIZ], *files[MAXARGS];
 272         char **argp, **arguments;
 273         char *progsw = NULL;
 274
 275 #ifdef LOCALE
 276         setlocale(LC_ALL, "");
 277 #endif
 278
 279         invo_name = mhbasename(argv[0]);
 280
 281         /* read user profile/context */
 282         context_read();
 283
 284         arguments = getarguments(invo_name, argc, argv, 1);
 285         argp = arguments;
 286
 287         if ((cp = getenv("MHLDEBUG")) && *cp)
 288                 mhldebug++;
 289
 290         while ((cp = *argp++)) {
 291                 if (*cp == '-') {
 292                         switch (smatch(++cp, mhlswitches)) {
 293                         case AMBIGSW:
 294                                 ambigsw(cp, mhlswitches);
 295                                 done(1);
 296                         case UNKWNSW:
 297                                 adios(NULL, "-%s unknown\n", cp);
 298
 299                         case HELPSW:
 300                                 snprintf(buf, sizeof(buf), "%s [switches] [files ...]", invo_name);
 301                                 print_help(buf, mhlswitches, 1);
 302                                 done(1);
 303                         case VERSIONSW:
 304                                 print_version(invo_name);
 305                                 done(1);
 306
 307                         case CLRSW:
 308                                 clearflg = 1;
 309                                 continue;
 310                         case NCLRSW:
 311                                 clearflg = -1;
 312                                 continue;
 313
 314                         case FOLDSW:
 315                                 if (!(folder = *argp++) || *folder == '-')
 316                                         adios(NULL, "missing argument to %s",
 317                                                         argp[-2]);
 318                                 continue;
 319                         case FORMSW:
 320                                 if (!(form = *argp++) || *form == '-')
 321                                         adios(NULL, "missing argument to %s",
 322                                                         argp[-2]);
 323                                 continue;
 324
 325                         case SLEEPSW:
 326                                 if (!(cp = *argp++) || *cp == '-')
 327                                         adios(NULL, "missing argument to %s",
 328                                                         argp[-2]);
 329                                 sleepsw = atoi(cp);  /* ZERO ok! */
 330                                 continue;
 331
 332                         case PROGSW:
 333                                 if (!(progsw = *argp++) || *progsw == '-')
 334                                         adios(NULL, "missing argument to %s",
 335                                                         argp[-2]);
 336                                 continue;
 337
 338                         case LENSW:
 339                                 if (!(cp = *argp++) || *cp == '-')
 340                                         adios(NULL, "missing argument to %s",
 341                                                         argp[-2]);
 342                                 if ((length = atoi(cp)) < 1)
 343                                         adios(NULL, "bad argument %s %s",
 344                                                         argp[-2], cp);
 345                                 continue;
 346                         case WIDTHSW:
 347                                 if (!(cp = *argp++) || *cp == '-')
 348                                         adios(NULL, "missing argument to %s",
 349                                                         argp[-2]);
 350                                 if ((width = atoi(cp)) < 1)
 351                                         adios(NULL, "bad argument %s %s",
 352                                                         argp[-2], cp);
 353                                 continue;
 354
 355                         case DGSTSW:
 356                                 if (!(digest = *argp++) ||
 357                                                 *digest == '-')
 358                                         adios(NULL, "missing argument to %s",
 359                                                         argp[-2]);
 360                                 continue;
 361                         case ISSUESW:
 362                                 if (!(cp = *argp++) || *cp == '-')
 363                                         adios(NULL, "missing argument to %s",
 364                                                         argp[-2]);
 365                                 if ((issue = atoi(cp)) < 1)
 366                                         adios(NULL, "bad argument %s %s",
 367                                                         argp[-2], cp);
 368                                 continue;
 369                         case VOLUMSW:
 370                                 if (!(cp = *argp++) || *cp == '-')
 371                                         adios(NULL, "missing argument to %s",
 372                                                         argp[-2]);
 373                                 if ((volume = atoi(cp)) < 1)
 374                                         adios(NULL, "bad argument %s %s",
 375                                                         argp[-2], cp);
 376                                 continue;
 377
 378                         case FORW2SW:
 379                                 forwall++;  /* fall */
 380                         case FORW1SW:
 381                                 forwflg++;
 382                                 clearflg = -1;/* XXX */
 383                                 continue;
 384
 385                         case NBODYSW:
 386                                 dobody = 0;
 387                                 continue;
 388                         }
 389                 }
 390                 files[vecp++] = cp;
 391         }
 392
 393         if (!folder)
 394                 folder = getenv("mhfolder");
 395
 396         if (isatty(fileno(stdout))) {
 397                 if (mhl_action) {
 398                         SIGNAL(SIGINT, SIG_IGN);
 399                         SIGNAL2(SIGQUIT, quitser);
 400                 }
 401                 SIGNAL2(SIGPIPE, pipeser);
 402                 m_popen(progsw ? progsw : moreproc);
 403                 ontty = PITTY;
 404         } else {
 405                 ontty = NOTTY;
 406         }
 407
 408         mhl_format(form ? form : mhlformat, length, width);
 409
 410         if (vecp == 0) {
 411                 process(folder, NULL, 1, vecp = 1);
 412         } else {
 413                 for (i = 0; i < vecp; i++)
 414                         process(folder, files[i], i + 1, vecp);
 415         }
 416
 417         if (forwall) {
 418                 if (digest) {
 419                         printf("%s", delim4);
 420                         if (volume == 0) {
 421                                 snprintf(buf, sizeof(buf),
 422                                         "End of %s Digest\n", digest);
 423                         } else {
 424                                 snprintf(buf, sizeof(buf), "End of %s Digest [Volume %d Issue %d]\n", digest, volume, issue);
 425                         }
 426                         i = strlen(buf);
 427                         for (cp = buf + i; i > 1; i--)
 428                                 *cp++ = '*';
 429                         *cp++ = '\n';
 430                         *cp = 0;
 431                         printf("%s", buf);
 432                 } else
 433                         printf("\n------- End of Forwarded Message%s\n\n",
 434                                 vecp > 1 ? "s" : "");
 435         }
 436
 437         fflush(stdout);
 438         if (ferror(stdout)) {
 439                 adios("output", "error writing");
 440         }
 441
 442         if (clearflg > 0 && ontty == NOTTY)
 443                 clear_screen();
 444
 445         if (ontty == PITTY)
 446                 m_pclose();
 447
 448         return exitstat;
 449 }
 450
 451
 452 static void
 453 mhl_format(char *file, int length, int width)
 454 {
 455         int i;
 456         char *bp, *cp, **ip;
 457         char *ap, buffer[BUFSIZ], name[NAMESZ];
 458         struct mcomp *c1;
 459         struct stat st;
 460         FILE *fp;
 461         static dev_t dev = 0;
 462         static ino_t ino = 0;
 463         static time_t mtime = 0;
 464
 465         if (fmthd != NULL) {
 466                 if (stat(etcpath(file), &st) != NOTOK
 467                         && mtime == st.st_mtime
 468                         && dev == st.st_dev
 469                         && ino == st.st_ino)
 470                         goto out;
 471                 else
 472                         free_queue(&fmthd, &fmttl);
 473         }
 474
 475         if ((fp = fopen(etcpath(file), "r")) == NULL)
 476                 adios(file, "unable to open format file");
 477
 478         if (fstat(fileno(fp), &st) != NOTOK) {
 479                 mtime = st.st_mtime;
 480                 dev = st.st_dev;
 481                 ino = st.st_ino;
 482         }
 483
 484         global.c_ovtxt = global.c_nfs = NULL;
 485         global.c_fmt = NULL;
 486         global.c_offset = 0;
 487         global.c_ovoff = -1;
 488         if ((i = sc_width()) > 5)
 489                 global.c_width = i;
 490         global.c_cwidth = -1;
 491         if ((i = sc_length()) > 5)
 492                 global.c_length = i - 1;
 493         global.c_flags = 0;
 494         *(ip = ignores) = NULL;
 495
 496         while (vfgets(fp, &ap) == OK) {
 497                 bp = ap;
 498                 if (*bp == ';')
 499                         continue;
 500
 501                 if ((cp = strchr(bp, '\n')))
 502                         *cp = 0;
 503
 504                 if (*bp == ':') {
 505                         c1 = add_queue(&fmthd, &fmttl, NULL, bp + 1,
 506                                         CLEARTEXT);
 507                         continue;
 508                 }
 509
 510                 parptr = bp;
 511                 strncpy(name, parse(), sizeof(name));
 512                 switch(*parptr) {
 513                 case '\0':
 514                 case ',':
 515                 case '=':
 516                         /*
 517                         ** Split this list of fields to ignore, and copy
 518                         ** it to the end of the current "ignores" list.
 519                         */
 520                         if (!mh_strcasecmp(name, "ignores")) {
 521                                 char **tmparray, **p;
 522                                 int n = 0;
 523
 524                                 /* split the fields */
 525                                 tmparray = brkstring(getcpy(++parptr), ",",
 526                                                 NULL);
 527
 528                                 /* count number of fields split */
 529                                 p = tmparray;
 530                                 while (*p++)
 531                                         n++;
 532
 533                                 /*
 534                                 ** copy pointers to split fields
 535                                 ** to ignores array
 536                                 */
 537                                 ip = copyip(tmparray, ip,
 538                                                 MAXARGS - num_ignores);
 539                                 num_ignores += n;
 540                                 continue;
 541                         }
 542                         parptr = bp;
 543                         while (*parptr) {
 544                                 if (evalvar(&global))
 545                                         adios(NULL, "format file syntax error: %s", bp);
 546                                 if (*parptr)
 547                                         parptr++;
 548                         }
 549                         continue;
 550
 551                 case ':':
 552                         c1 = add_queue(&fmthd, &fmttl, name, NULL, INIT);
 553                         while (*parptr == ':' || *parptr == ',') {
 554                                 parptr++;
 555                                 if (evalvar(c1))
 556                                         adios(NULL, "format file syntax error: %s", bp);
 557                         }
 558                         if (!c1->c_nfs && global.c_nfs) {
 559                                 if ((c1->c_flags & DATEFMT) &&
 560                                                 (global.c_flags & DATEFMT)) {
 561                                         c1->c_nfs = getcpy(global.c_nfs);
 562                                 } else if ((c1->c_flags & ADDRFMT) &&
 563                                                 (global.c_flags & ADDRFMT)) {
 564                                         c1->c_nfs = getcpy(global.c_nfs);
 565                                 }
 566                         }
 567                         continue;
 568
 569                 default:
 570                         adios(NULL, "format file syntax error: %s", bp);
 571                 }
 572         }
 573         fclose(fp);
 574
 575         if (mhldebug) {
 576                 for (c1 = fmthd; c1; c1 = c1->c_next) {
 577                         fprintf(stderr, "c1: name=\"%s\" text=\"%s\" ovtxt=\"%s\"\n", c1->c_name, c1->c_text, c1->c_ovtxt);
 578                         fprintf(stderr, "\tnfs=0x%x fmt=0x%x\n", (unsigned int)(unsigned long) c1->c_nfs, (unsigned int)(unsigned long) c1->c_fmt);
 579                         fprintf(stderr, "\toffset=%d ovoff=%d width=%d cwidth=%d length=%d\n", c1->c_offset, c1->c_ovoff, c1->c_width, c1->c_cwidth, c1->c_length);
 580                         fprintf (stderr, "\tflags=%s\n", snprintb(buffer, sizeof(buffer), (unsigned) c1->c_flags, LBITS));
 581                 }
 582         }
 583
 584 out:
 585         if (clearflg == 1) {
 586                 global.c_flags |= CLEARSCR;
 587         } else {
 588                 if (clearflg == -1)
 589                         global.c_flags &= ~CLEARSCR;
 590         }
 591
 592         if (length)
 593                 global.c_length = length;
 594         if (width)
 595                 global.c_width = width;
 596         if (global.c_length < 5)
 597                 global.c_length = 10000;
 598         if (global.c_width < 5)
 599                 global.c_width = 10000;
 600 }
 601
 602
 603 static int
 604 evalvar(struct mcomp *c1)
 605 {
 606         char *cp, name[NAMESZ];
 607         struct triple *ap;
 608
 609         if (!*parptr)
 610                 return 0;
 611         strncpy(name, parse(), sizeof(name));
 612
 613         if (!mh_strcasecmp(name, "component")) {
 614                 if (ptos(name, &c1->c_text))
 615                         return 1;
 616                 c1->c_flags &= ~NOCOMPONENT;
 617                 return 0;
 618         }
 619
 620         if (!mh_strcasecmp(name, "overflowtext"))
 621                 return ptos(name, &c1->c_ovtxt);
 622
 623         if (!mh_strcasecmp(name, "formatfield")) {
 624                 char *nfs;
 625
 626                 if (ptos(name, &cp))
 627                         return 1;
 628                 cp = concat("=", cp, NULL);
 629                 nfs = new_fs(cp, NULL);
 630                 free(cp);
 631                 c1->c_nfs = getcpy(nfs);
 632                 c1->c_flags |= FORMAT;
 633                 return 0;
 634         }
 635
 636         if (!mh_strcasecmp(name, "decode")) {
 637                 char *nfs;
 638
 639                 nfs = new_fs("=%(decode{text})", NULL);
 640                 c1->c_nfs = getcpy(nfs);
 641                 c1->c_flags |= FORMAT;
 642                 return 0;
 643         }
 644
 645         if (!mh_strcasecmp(name, "offset"))
 646                 return ptoi(name, &c1->c_offset);
 647         if (!mh_strcasecmp(name, "overflowoffset"))
 648                 return ptoi(name, &c1->c_ovoff);
 649         if (!mh_strcasecmp(name, "width"))
 650                 return ptoi(name, &c1->c_width);
 651         if (!mh_strcasecmp(name, "compwidth"))
 652                 return ptoi(name, &c1->c_cwidth);
 653         if (!mh_strcasecmp(name, "length"))
 654                 return ptoi(name, &c1->c_length);
 655
 656         for (ap = triples; ap->t_name; ap++)
 657                 if (!mh_strcasecmp(ap->t_name, name)) {
 658                         c1->c_flags |= ap->t_on;
 659                         c1->c_flags &= ~ap->t_off;
 660                         return 0;
 661                 }
 662
 663         return 1;
 664 }
 665
 666
 667 static int
 668 ptoi(char *name, int *i)
 669 {
 670         char *cp;
 671
 672         if (*parptr++ != '=' || !*(cp = parse())) {
 673                 advise(NULL, "missing argument to variable %s", name);
 674                 return 1;
 675         }
 676
 677         *i = atoi(cp);
 678         return 0;
 679 }
 680
 681
 682 static int
 683 ptos(char *name, char **s)
 684 {
 685         char c, *cp;
 686
 687         if (*parptr++ != '=') {
 688                 advise(NULL, "missing argument to variable %s", name);
 689                 return 1;
 690         }
 691
 692         if (*parptr != '"') {
 693                 for (cp = parptr; *parptr && *parptr != ':' && *parptr != ',';
 694                                 parptr++)
 695                         continue;
 696         } else {
 697                 for (cp = ++parptr; *parptr && *parptr != '"'; parptr++)
 698                         if (*parptr == QUOTE)
 699                                 if (!*++parptr)
 700                                         parptr--;
 701         }
 702         c = *parptr;
 703         *parptr = 0;
 704         *s = getcpy(cp);
 705         if ((*parptr = c) == '"')
 706                 parptr++;
 707         return 0;
 708 }
 709
 710
 711 static char *
 712 parse(void)
 713 {
 714         int c;
 715         char *cp;
 716         static char result[NAMESZ];
 717
 718         for (cp = result; *parptr && (cp - result < NAMESZ); parptr++) {
 719                 c = *parptr;
 720                 if (isalnum(c)
 721                                 || c == '.'
 722                                 || c == '-'
 723                                 || c == '_'
 724                                 || c == '['
 725                                 || c == ']')
 726                         *cp++ = c;
 727                 else
 728                         break;
 729         }
 730         *cp = '\0';
 731
 732         return result;
 733 }
 734
 735
 736 static void
 737 process(char *folder, char *fname, int ofilen, int ofilec)
 738 {
 739         char *cp = NULL;
 740         FILE *fp = NULL;
 741         struct mcomp *c1;
 742
 743         switch (setjmp(env)) {
 744         case OK:
 745                 if (fname) {
 746                         fp = mhl_action ? (*mhl_action) (fname) :
 747                                         fopen(fname, "r");
 748                         if (fp == NULL) {
 749                                 advise(fname, "unable to open");
 750                                 exitstat++;
 751                                 return;
 752                         }
 753                 } else {
 754                         fname = "(stdin)";
 755                         fp = stdin;
 756                 }
 757                 cp = folder ? concat(folder, ":", fname, NULL) : getcpy(fname);
 758                 if (ontty != PITTY)
 759                         SIGNAL(SIGINT, intrser);
 760                 mhlfile(fp, cp, ofilen, ofilec);
 761                 /* FALL THROUGH! */
 762         default:
 763                 if (ontty != PITTY)
 764                         SIGNAL(SIGINT, SIG_IGN);
 765                 if (mhl_action == NULL && fp != stdin)
 766                         fclose(fp);
 767                 free(cp);
 768                 if (holder.c_text) {
 769                         free(holder.c_text);
 770                         holder.c_text = NULL;
 771                 }
 772                 free_queue(&msghd, &msgtl);
 773                 for (c1 = fmthd; c1; c1 = c1->c_next)
 774                         c1->c_flags &= ~HDROUTPUT;
 775                 break;
 776         }
 777 }
 778
 779
 780 static void
 781 mhlfile(FILE *fp, char *mname, int ofilen, int ofilec)
 782 {
 783         int state;
 784         struct mcomp *c1, *c2, *c3;
 785         char **ip, name[NAMESZ], buf[BUFSIZ];
 786
 787         if (forwall) {
 788                 if (digest)
 789                         printf("%s", ofilen == 1 ? delim3 : delim4);
 790                 else {
 791                         printf("\n-------");
 792                         if (ofilen == 1)
 793                                 printf(" Forwarded Message%s",
 794                                                 ofilec > 1 ? "s" : "");
 795                         else
 796                                 printf(" Message %d", ofilen);
 797                         printf("\n\n");
 798                 }
 799         } else {
 800                 switch (ontty) {
 801                 case PITTY:
 802                         if (ofilec > 1) {
 803                                 if (ofilen > 1) {
 804                                         if ((global.c_flags & CLEARSCR))
 805                                                 clear_screen();
 806                                         else
 807                                                 printf("\n\n\n");
 808                                 }
 809                                 printf(">>> %s\n\n", mname);
 810                         }
 811                         break;
 812
 813                 default:
 814                         if (ofilec > 1) {
 815                                 if (ofilen > 1) {
 816                                         printf("\n\n\n");
 817                                         if (clearflg > 0)
 818                                                 clear_screen();
 819                                 }
 820                                 printf(">>> %s\n\n", mname);
 821                         }
 822                         break;
 823                 }
 824         }
 825
 826         for (state = FLD;;) {
 827                 switch (state = m_getfld(state, name, buf, sizeof(buf), fp)) {
 828                 case FLD:
 829                 case FLDPLUS:
 830                         for (ip = ignores; *ip; ip++)
 831                                 if (!mh_strcasecmp(name, *ip)) {
 832                                         while (state == FLDPLUS)
 833                                                 state = m_getfld(state, name, buf, sizeof(buf), fp);
 834                                         break;
 835                                 }
 836                         if (*ip)
 837                                 continue;
 838
 839                         for (c2 = fmthd; c2; c2 = c2->c_next)
 840                                 if (!mh_strcasecmp(c2->c_name, name))
 841                                         break;
 842                         c1 = NULL;
 843                         if (!((c3 = c2 ? c2 : &global)->c_flags & SPLIT))
 844                                 for (c1 = msghd; c1; c1 = c1->c_next)
 845                                         if (!mh_strcasecmp(c1->c_name,
 846                                                         c3->c_name)) {
 847                                                 c1->c_text = mcomp_add(c1->c_flags, buf, c1->c_text);
 848                                                 break;
 849                                         }
 850                         if (c1 == NULL)
 851                                 c1 = add_queue(&msghd, &msgtl, name, buf, 0);
 852                         while (state == FLDPLUS) {
 853                                 state = m_getfld(state, name, buf,
 854                                                 sizeof(buf), fp);
 855                                 c1->c_text = add(buf, c1->c_text);
 856                         }
 857                         if (c2 == NULL)
 858                                 c1->c_flags |= EXTRA;
 859                         continue;
 860
 861                 case BODY:
 862                 case FILEEOF:
 863                         row = column = 0;
 864                         for (c1 = fmthd; c1; c1 = c1->c_next) {
 865                                 if (c1->c_flags & CLEARTEXT) {
 866                                         putcomp(c1, c1, ONECOMP);
 867                                         continue;
 868                                 }
 869                                 if (!mh_strcasecmp(c1->c_name, "messagename")) {
 870                                         holder.c_text = concat("(Message ",
 871                                                         mname, ")\n", NULL);
 872                                         putcomp(c1, &holder, ONECOMP);
 873                                         free(holder.c_text);
 874                                         holder.c_text = NULL;
 875                                         continue;
 876                                 }
 877                                 if (!mh_strcasecmp(c1->c_name, "extras")) {
 878                                         for (c2 = msghd; c2; c2 = c2->c_next)
 879                                                 if (c2->c_flags & EXTRA)
 880                                                         putcomp(c1, c2, TWOCOMP);
 881                                         continue;
 882                                 }
 883                                 if (dobody && !mh_strcasecmp(c1->c_name, "body")) {
 884                                         holder.c_text = mh_xmalloc(sizeof(buf));
 885                                         strncpy(holder.c_text, buf, sizeof(buf));
 886                                         while (state == BODY) {
 887                                                 putcomp(c1, &holder, BODYCOMP);
 888                                                 state = m_getfld(state, name, holder.c_text, sizeof(buf), fp);
 889                                         }
 890                                         free(holder.c_text);
 891                                         holder.c_text = NULL;
 892                                         continue;
 893                                 }
 894                                 for (c2 = msghd; c2; c2 = c2->c_next)
 895                                         if (!mh_strcasecmp(c2->c_name,
 896                                                         c1->c_name)) {
 897                                                 putcomp(c1, c2, ONECOMP);
 898                                                 if (!(c1->c_flags & SPLIT))
 899                                                         break;
 900                                         }
 901                         }
 902                         return;
 903
 904                 case LENERR:
 905                 case FMTERR:
 906                         advise(NULL, "format error in message %s", mname);
 907                         exitstat++;
 908                         return;
 909
 910                 default:
 911                         adios(NULL, "getfld() returned %d", state);
 912                 }
 913         }
 914 }
 915
 916
 917 static int
 918 mcomp_flags(char *name)
 919 {
 920         struct pair *ap;
 921
 922         for (ap = pairs; ap->p_name; ap++)
 923                 if (!mh_strcasecmp(ap->p_name, name))
 924                         return (ap->p_flags);
 925
 926         return 0;
 927 }
 928
 929
 930 static char *
 931 mcomp_add(long flags, char *s1, char *s2)
 932 {
 933         char *dp;
 934
 935         if (!(flags & ADDRFMT))
 936                 return add(s1, s2);
 937
 938         if (s2 && *(dp = s2 + strlen(s2) - 1) == '\n')
 939                 *dp = 0;
 940
 941         return add(s1, add(",\n", s2));
 942 }
 943
 944
 945 struct pqpair {
 946         char *pq_text;
 947         char *pq_error;
 948         struct pqpair *pq_next;
 949 };
 950
 951
 952 static void
 953 mcomp_format(struct mcomp *c1, struct mcomp *c2)
 954 {
 955         int dat[5];
 956         char *ap, *cp;
 957         char buffer[BUFSIZ], error[BUFSIZ];
 958         struct comp *cptr;
 959         struct pqpair *p, *q;
 960         struct pqpair pq;
 961         struct mailname *mp;
 962
 963         ap = c2->c_text;
 964         c2->c_text = NULL;
 965         dat[0] = 0;
 966         dat[1] = 0;
 967         dat[2] = 0;
 968         dat[3] = sizeof(buffer) - 1;
 969         dat[4] = 0;
 970         fmt_compile(c1->c_nfs, &c1->c_fmt);
 971
 972         if (!(c1->c_flags & ADDRFMT)) {
 973                 FINDCOMP(cptr, "text");
 974                 if (cptr)
 975                         cptr->c_text = ap;
 976                 if ((cp = strrchr(ap, '\n')))  /* drop ending newline */
 977                         if (!cp[1])
 978                                 *cp = 0;
 979
 980                 fmt_scan(c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
 981                 /* Don't need to append a newline, dctime() already did */
 982                 c2->c_text = getcpy(buffer);
 983
 984                 free(ap);
 985                 return;
 986         }
 987
 988         (q = &pq)->pq_next = NULL;
 989         while ((cp = getname(ap))) {
 990                 if ((p = (struct pqpair *)
 991                                 calloc((size_t) 1, sizeof(*p))) == NULL)
 992                         adios(NULL, "unable to allocate pqpair memory");
 993
 994                 if ((mp = getm(cp, NULL, 0, AD_NAME, error)) == NULL) {
 995                         p->pq_text = getcpy(cp);
 996                         p->pq_error = getcpy(error);
 997                 } else {
 998                         p->pq_text = getcpy(mp->m_text);
 999                         mnfree(mp);
1000                 }
1001                 q = (q->pq_next = p);
1002         }
1003
1004         for (p = pq.pq_next; p; p = q) {
1005                 FINDCOMP(cptr, "text");
1006                 if (cptr)
1007                         cptr->c_text = p->pq_text;
1008                 FINDCOMP(cptr, "error");
1009                 if (cptr)
1010                         cptr->c_text = p->pq_error;
1011
1012                 fmt_scan(c1->c_fmt, buffer, sizeof(buffer) - 1, dat);
1013                 if (*buffer) {
1014                         if (c2->c_text)
1015                                 c2->c_text = add(",\n", c2->c_text);
1016                         if (*(cp = buffer + strlen(buffer) - 1) == '\n')
1017                                 *cp = 0;
1018                         c2->c_text = add(buffer, c2->c_text);
1019                 }
1020
1021                 free(p->pq_text);
1022                 if (p->pq_error)
1023                         free(p->pq_error);
1024                 q = p->pq_next;
1025                 free((char *) p);
1026         }
1027
1028         c2->c_text = add("\n", c2->c_text);
1029         free (ap);
1030 }
1031
1032
1033 static struct mcomp *
1034 add_queue(struct mcomp **head, struct mcomp **tail, char *name,
1035                 char *text, int flags)
1036 {
1037         struct mcomp *c1;
1038
1039         if ((c1 = (struct mcomp *) calloc((size_t) 1, sizeof(*c1))) == NULL)
1040                 adios(NULL, "unable to allocate comp memory");
1041
1042         c1->c_flags = flags & ~INIT;
1043         if ((c1->c_name = name ? getcpy(name) : NULL))
1044                 c1->c_flags |= mcomp_flags(c1->c_name);
1045         c1->c_text = text ? getcpy(text) : NULL;
1046         if (flags & INIT) {
1047                 if (global.c_ovtxt)
1048                         c1->c_ovtxt = getcpy(global.c_ovtxt);
1049                 c1->c_offset = global.c_offset;
1050                 c1->c_ovoff = global. c_ovoff;
1051                 c1->c_width = c1->c_length = 0;
1052                 c1->c_cwidth = global.c_cwidth;
1053                 c1->c_flags |= global.c_flags & GFLAGS;
1054         }
1055         if (*head == NULL)
1056                 *head = c1;
1057         if (*tail != NULL)
1058                 (*tail)->c_next = c1;
1059         *tail = c1;
1060
1061         return c1;
1062 }
1063
1064
1065 static void
1066 free_queue(struct mcomp **head, struct mcomp **tail)
1067 {
1068         struct mcomp *c1, *c2;
1069
1070         for (c1 = *head; c1; c1 = c2) {
1071                 c2 = c1->c_next;
1072                 if (c1->c_name)
1073                         free(c1->c_name);
1074                 if (c1->c_text)
1075                         free(c1->c_text);
1076                 if (c1->c_ovtxt)
1077                         free(c1->c_ovtxt);
1078                 if (c1->c_nfs)
1079                         free(c1->c_nfs);
1080                 if (c1->c_fmt)
1081                         free((char *) c1->c_fmt);
1082                 free((char *) c1);
1083         }
1084
1085         *head = *tail = NULL;
1086 }
1087
1088
1089 static void
1090 putcomp(struct mcomp *c1, struct mcomp *c2, int flag)
1091 {
1092         int count, cchdr;
1093         unsigned char *cp;
1094
1095         cchdr = 0;
1096         lm = 0;
1097         llim = c1->c_length ? c1->c_length : -1;
1098         wid = c1->c_width ? c1->c_width : global.c_width;
1099         ovoff = (c1->c_ovoff >= 0 ? c1->c_ovoff : global.c_ovoff)
1100                         + c1->c_offset;
1101         if ((ovtxt = c1->c_ovtxt ? c1->c_ovtxt : global.c_ovtxt) == NULL)
1102                 ovtxt = "";
1103         if (wid < ovoff + strlen(ovtxt) + 5)
1104                 adios(NULL, "component: %s width(%d) too small for overflow(%d)", c1->c_name, wid, ovoff + strlen(ovtxt) + 5);
1105         onelp = NULL;
1106
1107         if (c1->c_flags & CLEARTEXT) {
1108                 putstr(c1->c_text);
1109                 putstr("\n");
1110                 return;
1111         }
1112
1113         if (c1->c_nfs && (c1->c_flags & (ADDRFMT | DATEFMT | FORMAT)))
1114                 mcomp_format(c1, c2);
1115
1116         if (c1->c_flags & CENTER) {
1117                 count = (c1->c_width ? c1->c_width : global.c_width)
1118                                 - c1->c_offset - strlen(c2->c_text);
1119                 if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT))
1120                         count -= strlen(c1->c_text ? c1->c_text : c1->c_name)
1121                                         + 2;
1122                 lm = c1->c_offset + (count / 2);
1123         } else {
1124                 if (c1->c_offset)
1125                         lm = c1->c_offset;
1126         }
1127
1128         if (!(c1->c_flags & HDROUTPUT) && !(c1->c_flags & NOCOMPONENT)) {
1129                 if (c1->c_flags & UPPERCASE)  /* uppercase component also */
1130                         for (cp = (c1->c_text ? c1->c_text : c1->c_name); *cp; cp++)
1131                                 if (islower(*cp))
1132                                         *cp = toupper(*cp);
1133                 putstr(c1->c_text ? c1->c_text : c1->c_name);
1134                 if (flag != BODYCOMP) {
1135                         putstr(": ");
1136                         if (!(c1->c_flags & SPLIT))
1137                                 c1->c_flags |= HDROUTPUT;
1138
1139                 cchdr++;
1140                 if ((count = c1->c_cwidth -
1141                         strlen(c1->c_text ? c1->c_text : c1->c_name) - 2) > 0)
1142                         while (count--)
1143                                 putstr(" ");
1144                 } else
1145                         c1->c_flags |= HDROUTPUT;  /* for BODYCOMP */
1146         }
1147
1148         if (flag == TWOCOMP && !(c2->c_flags & HDROUTPUT)
1149                 && !(c2->c_flags & NOCOMPONENT)) {
1150                 if (c1->c_flags & UPPERCASE)
1151                         for (cp = c2->c_name; *cp; cp++)
1152                                 if (islower(*cp))
1153                                         *cp = toupper(*cp);
1154                 putstr(c2->c_name);
1155                 putstr(": ");
1156                 if (!(c1->c_flags & SPLIT))
1157                         c2->c_flags |= HDROUTPUT;
1158
1159                 cchdr++;
1160                 if ((count = c1->c_cwidth - strlen(c2->c_name) - 2) > 0)
1161                         while (count--)
1162                                 putstr(" ");
1163         }
1164         if (c1->c_flags & UPPERCASE)
1165                 for (cp = c2->c_text; *cp; cp++)
1166                         if (islower(*cp))
1167                                 *cp = toupper(*cp);
1168
1169         count = 0;
1170         if (cchdr) {
1171                 if (flag == TWOCOMP)
1172                         count = (c1->c_cwidth >= 0) ?
1173                                         c1->c_cwidth : strlen(c2->c_name) + 2;
1174                 else
1175                         count = (c1->c_cwidth >= 0) ?
1176                                         c1->c_cwidth : strlen(c1->c_text ?
1177                                         c1->c_text : c1->c_name) + 2;
1178         }
1179         count += c1->c_offset;
1180
1181         if ((cp = oneline(c2->c_text, c1->c_flags)))
1182            putstr(cp);
1183         if (term == '\n')
1184                 putstr("\n");
1185         while ((cp = oneline(c2->c_text, c1->c_flags))) {
1186                 lm = count;
1187                 if (flag == BODYCOMP && !(c1->c_flags & NOCOMPONENT))
1188                         putstr(c1->c_text ? c1->c_text : c1->c_name);
1189                 if (*cp)
1190                         putstr(cp);
1191                 if (term == '\n')
1192                         putstr("\n");
1193         }
1194         if (flag == BODYCOMP && term == '\n')
1195                 c1->c_flags &= ~HDROUTPUT;  /* Buffer ended on a newline */
1196 }
1197
1198
1199 static char *
1200 oneline(char *stuff, long flags)
1201 {
1202         int spc;
1203         char *cp, *ret;
1204
1205         if (onelp == NULL)
1206                 onelp = stuff;
1207         if (*onelp == 0)
1208                 return (onelp = NULL);
1209
1210         ret = onelp;
1211         term = 0;
1212         if (flags & COMPRESS) {
1213                 for (spc = 1, cp = ret; *onelp; onelp++)
1214                         if (isspace(*onelp)) {
1215                                 if (*onelp == '\n' &&
1216                                                 (!onelp[1] ||
1217                                                 (flags & ADDRFMT))) {
1218                                         term = '\n';
1219                                         *onelp++ = 0;
1220                                         break;
1221                                 } else if (!spc) {
1222                                         *cp++ = ' ';
1223                                         spc++;
1224                                 }
1225                         } else {
1226                                 *cp++ = *onelp;
1227                                 spc = 0;
1228                         }
1229
1230                 *cp = 0;
1231         } else {
1232                 while (*onelp && *onelp != '\n')
1233                         onelp++;
1234                 if (*onelp == '\n') {
1235                         term = '\n';
1236                         *onelp++ = 0;
1237                 }
1238                 if (flags & LEFTADJUST)
1239                         while (*ret == ' ' || *ret == '\t')
1240                                 ret++;
1241         }
1242         if (*onelp == 0 && term == '\n' && (flags & NONEWLINE))
1243                 term = 0;
1244
1245         return ret;
1246 }
1247
1248
1249 static void
1250 putstr(char *string)
1251 {
1252         if (!column && lm > 0) {
1253                 while (lm > 0)
1254                         if (lm >= 8) {
1255                                 putch('\t');
1256                                 lm -= 8;
1257                         } else {
1258                                 putch(' ');
1259                                 lm--;
1260                         }
1261         }
1262         lm = 0;
1263         while (*string)
1264                 putch(*string++);
1265 }
1266
1267
1268 static void
1269 putch(char ch)
1270 {
1271         char buf[BUFSIZ];
1272
1273         if (llim == 0)
1274                 return;
1275
1276         switch (ch) {
1277         case '\n':
1278                 if (llim > 0)
1279                         llim--;
1280                 column = 0;
1281                 row++;
1282                 if (row != global.c_length)
1283                         break;
1284                 fflush(stdout);
1285                 buf[0] = 0;
1286                 read(fileno(stdout), buf, sizeof(buf));
1287                 if (strchr(buf, '\n')) {
1288                         if (global.c_flags & CLEARSCR)
1289                                 clear_screen();
1290                         row = 0;
1291                 } else {
1292                         putchar('\n');
1293                         row = global.c_length / 3;
1294                 }
1295                 return;
1296
1297         case '\t':
1298                 column |= 07;
1299                 column++;
1300                 break;
1301
1302         case '\b':
1303                 column--;
1304                 break;
1305
1306         case '\r':
1307                 column = 0;
1308                 break;
1309
1310         default:
1311                 /*
1312                 ** If we are forwarding this message, and the first
1313                 ** column contains a dash, then add a dash and a space.
1314                 */
1315                 if (column == 0 && forwflg && ch == '-') {
1316                         putchar('-');
1317                         putchar(' ');
1318                 }
1319                 if (ch >= ' ')
1320                         column++;
1321                 break;
1322         }
1323
1324         if (column >= wid) {
1325                 putch('\n');
1326                 if (ovoff > 0)
1327                         lm = ovoff;
1328                 putstr(ovtxt ? ovtxt : "");
1329                 putch(ch);
1330                 return;
1331         }
1332
1333         putchar(ch);
1334 }
1335
1336
1337 static RETSIGTYPE
1338 intrser(int i)
1339 {
1340 #ifndef RELIABLE_SIGNALS
1341         SIGNAL(SIGINT, intrser);
1342 #endif
1343
1344         discard(stdout);
1345         putchar('\n');
1346         longjmp(env, DONE);
1347 }
1348
1349
1350 static RETSIGTYPE
1351 pipeser(int i)
1352 {
1353 #ifndef RELIABLE_SIGNALS
1354         SIGNAL(SIGPIPE, pipeser);
1355 #endif
1356
1357         done(NOTOK);
1358 }
1359
1360
1361 static RETSIGTYPE
1362 quitser(int i)
1363 {
1364 #ifndef RELIABLE_SIGNALS
1365         SIGNAL(SIGQUIT, quitser);
1366 #endif
1367
1368         putchar('\n');
1369         fflush(stdout);
1370         done(NOTOK);
1371 }
1372
1373
1374 #undef adios
1375 #undef done
1376
1377 static void
1378 mhladios(char *what, char *fmt, ...)
1379 {
1380         va_list ap;
1381
1382         va_start(ap, fmt);
1383         advertise(what, NULL, fmt, ap);
1384         va_end(ap);
1385         mhldone(1);
1386 }
1387
1388
1389 static void
1390 mhldone(int status)
1391 {
1392         exitstat = status;
1393         if (mhl_action)
1394                 longjmp(mhlenv, DONE);
1395         else
1396                 done(exitstat);
1397 }
1398
1399
1400 static int m_pid = NOTOK;
1401 static int sd = NOTOK;
1402
1403 static void
1404 m_popen(char *name)
1405 {
1406         int pd[2];
1407
1408         if (mhl_action && (sd = dup(fileno(stdout))) == NOTOK)
1409                 adios("standard output", "unable to dup()");
1410
1411         if (pipe(pd) == NOTOK)
1412                 adios("pipe", "unable to");
1413
1414         switch (m_pid = fork()) {
1415         case NOTOK:
1416                 adios("fork", "unable to");
1417
1418         case OK:
1419                 SIGNAL(SIGINT, SIG_DFL);
1420                 SIGNAL(SIGQUIT, SIG_DFL);
1421
1422                 close(pd[1]);
1423                 if (pd[0] != fileno(stdin)) {
1424                         dup2(pd[0], fileno(stdin));
1425                         close(pd[0]);
1426                 }
1427                 execlp(name, mhbasename(name), NULL);
1428                 fprintf(stderr, "unable to exec ");
1429                 perror(name);
1430                 _exit(-1);
1431
1432         default:
1433                 close(pd[0]);
1434                 if (pd[1] != fileno(stdout)) {
1435                         dup2(pd[1], fileno(stdout));
1436                         close(pd[1]);
1437                 }
1438         }
1439 }
1440
1441
1442 void
1443 m_pclose(void)
1444 {
1445         if (m_pid == NOTOK)
1446                 return;
1447
1448         if (sd != NOTOK) {
1449                 fflush(stdout);
1450                 if (dup2(sd, fileno(stdout)) == NOTOK)
1451                         adios("standard output", "unable to dup2()");
1452
1453                 clearerr(stdout);
1454                 close(sd);
1455                 sd = NOTOK;
1456         }
1457         else
1458                 fclose(stdout);
1459
1460         pidwait(m_pid, OK);
1461         m_pid = NOTOK;
1462 }