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

   1 /*
   2 ** repl.c -- reply to a message
   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/utils.h>
  11 #include <h/addrsbr.h>
  12 #include <h/fmt_scan.h>
  13 #include <sys/file.h>  /* L_SET */
  14 #include <errno.h>
  15
  16
  17 static struct swit switches[] = {
  18 #define GROUPSW  0
  19         { "group", 0 },
  20 #define NGROUPSW  1
  21         { "nogroup", 0 },
  22 #define ANNOSW  2
  23         { "annotate", 0 },
  24 #define NANNOSW  3
  25         { "noannotate", 0 },
  26 #define CCSW  4
  27         { "cc all|to|cc|me", 0 },
  28 #define NCCSW  5
  29         { "nocc type", 0 },
  30 #define EDITRSW  6
  31         { "editor editor", 0 },
  32 #define NEDITSW  7
  33         { "noedit", 0 },
  34 #define FILTSW  8
  35         { "filter filterfile", 0 },
  36 #define FORMSW  9
  37         { "form formfile", 0 },
  38 #define FRMTSW  10
  39         { "format", 5 },
  40 #define NFRMTSW  11
  41         { "noformat", 7 },
  42 #define MIMESW  12
  43         { "mime", 0 },
  44 #define NMIMESW  13
  45         { "nomime", 0 },
  46 #define QURYSW  14
  47         { "query", 0 },
  48 #define NQURYSW  15
  49         { "noquery", 0 },
  50 #define WHATSW  16
  51         { "whatnowproc program", 0 },
  52 #define NWHATSW  17
  53         { "nowhatnowproc", 0 },
  54 #define VERSIONSW  18
  55         { "version", 0 },
  56 #define HELPSW  19
  57         { "help", 0 },
  58 #define FILESW  20
  59         { "file file", 4 },  /* interface from msh */
  60
  61 #ifdef MHE
  62 #define BILDSW  21
  63         { "build", 5 },  /* interface from mhe */
  64 #endif
  65
  66         { NULL, 0 }
  67 };
  68
  69 static struct swit ccswitches[] = {
  70 #define CTOSW  0
  71         { "to", 0 },
  72 #define CCCSW  1
  73         { "cc", 0 },
  74 #define CMESW  2
  75         { "me", 0 },
  76 #define CALSW  3
  77         { "all", 0 },
  78         { NULL, 0 }
  79 };
  80
  81 /*
  82 ** Buffer size for content part of header fields.
  83 ** We want this to be large enough so that we don't
  84 ** do a lot of extra FLDPLUS calls on m_getfld but
  85 ** small enough so that we don't snarf the entire
  86 ** message body when we're not going to use any of it.
  87 */
  88 #define SBUFSIZ 256
  89
  90 static short ccto = -1;
  91 static short cccc = -1;
  92 static short ccme = -1;
  93 static short querysw = 0;
  94
  95 static short groupreply = 0;  /* Is this a group reply? */
  96
  97 static int mime = 0;  /* include original as MIME part */
  98 static char *form   = NULL;  /* form (components) file */
  99 static char *filter = NULL;  /* message filter file */
 100
 101 static int dftype=0;
 102
 103 static char *badaddrs = NULL;
 104 static char *dfhost = NULL;
 105
 106 static struct mailname mq = { NULL };
 107
 108 static struct format *fmt;
 109
 110 static int ncomps = 0;  /* # of interesting components */
 111 static char **compbuffers = NULL;  /* buffers for component text */
 112 static struct comp **used_buf = NULL;  /* stack for comp that use buffers */
 113
 114 static int dat[5];  /* aux. data for format routine */
 115
 116 static char *addrcomps[] = {
 117         "from",
 118         "sender",
 119         "reply-to",
 120         "to",
 121         "cc",
 122         "bcc",
 123         "resent-from",
 124         "resent-sender",
 125         "resent-reply-to",
 126         "resent-to",
 127         "resent-cc",
 128         "resent-bcc",
 129         NULL
 130 };
 131
 132 /*
 133 ** static prototypes
 134 */
 135 static void docc(char *, int);
 136 static int insert(struct mailname *);
 137 static void replfilter(FILE *, FILE *, char *);
 138 static void replout(FILE *, char *, char *, struct msgs *, int,
 139                 char *, char *);
 140
 141
 142 int
 143 main(int argc, char **argv)
 144 {
 145         int anot = 0;
 146         int nedit = 0, nwhat = 0;
 147         char *cp, *cwd, *maildir, *file = NULL;
 148         char *folder = NULL, *msg = NULL;
 149         char *ed = NULL, drft[BUFSIZ], buf[BUFSIZ];
 150         char **argp, **arguments;
 151         struct msgs *mp = NULL;
 152         FILE *in;
 153
 154 #ifdef MHE
 155         int buildsw = 0;
 156 #endif /* MHE */
 157
 158 #ifdef LOCALE
 159         setlocale(LC_ALL, "");
 160 #endif
 161         invo_name = mhbasename(argv[0]);
 162
 163         /* read user profile/context */
 164         context_read();
 165
 166         arguments = getarguments(invo_name, argc, argv, 1);
 167         argp = arguments;
 168
 169         while ((cp = *argp++)) {
 170                 if (*cp == '-') {
 171                         switch (smatch(++cp, switches)) {
 172                         case AMBIGSW:
 173                                 ambigsw(cp, switches);
 174                                 done(1);
 175                         case UNKWNSW:
 176                                 adios(NULL, "-%s unknown", cp);
 177
 178                         case HELPSW:
 179                                 snprintf(buf, sizeof(buf), "%s: [+folder] [msg] [switches]", invo_name);
 180                                 print_help(buf, switches, 1);
 181                                 done(0);
 182                         case VERSIONSW:
 183                                 print_version(invo_name);
 184                                 done(1);
 185
 186                         case GROUPSW:
 187                                 groupreply++;
 188                                 continue;
 189                         case NGROUPSW:
 190                                 groupreply = 0;
 191                                 continue;
 192
 193                         case ANNOSW:
 194                                 anot++;
 195                                 continue;
 196                         case NANNOSW:
 197                                 anot = 0;
 198                                 continue;
 199
 200                         case CCSW:
 201                                 if (!(cp = *argp++) || *cp == '-')
 202                                         adios(NULL, "missing argument to %s",
 203                                                         argp[-2]);
 204                                 docc(cp, 1);
 205                                 continue;
 206                         case NCCSW:
 207                                 if (!(cp = *argp++) || *cp == '-')
 208                                         adios(NULL, "missing argument to %s",
 209                                                         argp[-2]);
 210                                 docc(cp, 0);
 211                                 continue;
 212
 213                         case EDITRSW:
 214                                 if (!(ed = *argp++) || *ed == '-')
 215                                         adios(NULL, "missing argument to %s",
 216                                                         argp[-2]);
 217                                 nedit = 0;
 218                                 continue;
 219                         case NEDITSW:
 220                                 nedit++;
 221                                 continue;
 222
 223                         case WHATSW:
 224                                 if (!(whatnowproc = *argp++) ||
 225                                                 *whatnowproc == '-')
 226                                         adios(NULL, "missing argument to %s",
 227                                                         argp[-2]);
 228                                 nwhat = 0;
 229                                 continue;
 230 #ifdef MHE
 231                         case BILDSW:
 232                                 buildsw++;  /* fall... */
 233 #endif /* MHE */
 234                         case NWHATSW:
 235                                 nwhat++;
 236                                 continue;
 237
 238                         case FILESW:
 239                                 if (file)
 240                                         adios(NULL, "only one file at a time!");
 241                                 if (!(cp = *argp++) || *cp == '-')
 242                                         adios(NULL, "missing argument to %s",
 243                                                         argp[-2]);
 244                                 file = getcpy(expanddir(cp));
 245                                 continue;
 246                         case FILTSW:
 247                                 if (!(cp = *argp++) || *cp == '-')
 248                                         adios(NULL, "missing argument to %s",
 249                                                         argp[-2]);
 250                                 filter = getcpy(etcpath(cp));
 251                                 continue;
 252                         case FORMSW:
 253                                 if (!(form = *argp++) || *form == '-')
 254                                         adios(NULL, "missing argument to %s",
 255                                                         argp[-2]);
 256                                 continue;
 257
 258                         case FRMTSW:
 259                                 filter = getcpy(etcpath(mhlreply));
 260                                 continue;
 261                         case NFRMTSW:
 262                                 filter = NULL;
 263                                 continue;
 264
 265                         case MIMESW:
 266                                 mime++;
 267                                 continue;
 268                         case NMIMESW:
 269                                 mime = 0;
 270                                 continue;
 271
 272                         case QURYSW:
 273                                 querysw++;
 274                                 continue;
 275                         case NQURYSW:
 276                                 querysw = 0;
 277                                 continue;
 278
 279                         }
 280                 }
 281                 if (*cp == '+' || *cp == '@') {
 282                         if (folder)
 283                                 adios(NULL, "only one folder at a time!");
 284                         else
 285                                 folder = getcpy(expandfol(cp));
 286                 } else {
 287                         if (msg)
 288                                 adios(NULL, "only one message at a time!");
 289                         else
 290                                 msg = cp;
 291                 }
 292         }
 293
 294         if (ccto == -1)
 295                 ccto = groupreply;
 296         if (cccc == -1)
 297                 cccc = groupreply;
 298         if (ccme == -1)
 299                 ccme = groupreply;
 300
 301         cwd = getcpy(pwd());
 302
 303         if (file && (msg || folder))
 304                 adios(NULL, "can't mix files and folders/msgs");
 305
 306 #ifdef MHE
 307         strncpy(drft, buildsw ? toabsdir("reply")
 308                 : m_draft(seq_beyond), sizeof(drft));
 309 #else
 310         strncpy(drft, m_draft(seq_beyond), sizeof(drft));
 311 #endif /* MHE */
 312
 313         if (file) {
 314                 /*
 315                 ** We are replying to a file.
 316                 */
 317                 anot = 0;  /* we don't want to annotate a file */
 318         } else {
 319                 /*
 320                 ** We are replying to a message.
 321                 */
 322                 if (!msg)
 323                         msg = seq_cur;
 324                 if (!folder)
 325                         folder = getcurfol();
 326                 maildir = toabsdir(folder);
 327
 328                 if (chdir(maildir) == NOTOK)
 329                         adios(maildir, "unable to change directory to");
 330
 331                 /* read folder and create message structure */
 332                 if (!(mp = folder_read(folder)))
 333                         adios(NULL, "unable to read folder %s", folder);
 334
 335                 /* check for empty folder */
 336                 if (mp->nummsg == 0)
 337                         adios(NULL, "no messages in %s", folder);
 338
 339                 /* parse the message range/sequence/name and set SELECTED */
 340                 if (!m_convert(mp, msg))
 341                         done(1);
 342                 seq_setprev(mp);  /* set the previous-sequence */
 343
 344                 if (mp->numsel > 1)
 345                         adios(NULL, "only one message at a time!");
 346
 347                 context_replace(curfolder, folder); /* update current folder */
 348                 seq_setcur(mp, mp->lowsel);  /* update current message  */
 349                 seq_save(mp);  /* synchronize sequences   */
 350                 context_save();  /* save the context file   */
 351         }
 352
 353         msg = file ? file : getcpy(m_name(mp->lowsel));
 354
 355         if ((in = fopen(msg, "r")) == NULL)
 356                 adios(msg, "unable to open");
 357
 358         /* find form (components) file */
 359         if (!form) {
 360                 if (groupreply)
 361                         form = etcpath(replgroupcomps);
 362                 else
 363                         form = etcpath(replcomps);
 364         }
 365
 366         replout(in, msg, drft, mp, mime, form, filter);
 367         fclose(in);
 368
 369         if (nwhat)
 370                 done(0);
 371         what_now(ed, nedit, NOUSE, drft, msg, 0, mp, anot ? "Replied" : NULL,
 372                         cwd);
 373         done(1);
 374         return 1;
 375 }
 376
 377 static void
 378 docc(char *cp, int ccflag)
 379 {
 380         switch (smatch(cp, ccswitches)) {
 381         case AMBIGSW:
 382                 ambigsw(cp, ccswitches);
 383                 done(1);
 384         case UNKWNSW:
 385                 adios(NULL, "-%scc %s unknown", ccflag ? "" : "no", cp);
 386
 387         case CTOSW:
 388                 ccto = ccflag;
 389                 break;
 390
 391         case CCCSW:
 392                 cccc = ccflag;
 393                 break;
 394
 395         case CMESW:
 396                 ccme = ccflag;
 397                 break;
 398
 399         case CALSW:
 400                 ccto = cccc = ccme = ccflag;
 401                 break;
 402         }
 403 }
 404
 405
 406
 407
 408 static void
 409 replout(FILE *inb, char *msg, char *drft, struct msgs *mp,
 410         int mime, char *form, char *filter)
 411 {
 412         register int state, i;
 413         register struct comp *cptr;
 414         register char *tmpbuf;
 415         register char **nxtbuf;
 416         register char **ap;
 417         register struct comp **savecomp;
 418         int char_read = 0, format_len, mask;
 419         char name[NAMESZ], *scanl;
 420         unsigned char *cp;
 421         FILE *out;
 422
 423         mask = umask(~m_gmprot());
 424         if ((out = fopen(drft, "w")) == NULL)
 425                 adios(drft, "unable to create");
 426
 427         umask(mask);
 428
 429         /* get new format string */
 430         cp = new_fs(form, NULL, NULL);
 431         format_len = strlen(cp);
 432
 433         /* compile format string */
 434         ncomps = fmt_compile(cp, &fmt) + 1;
 435
 436         if (!(nxtbuf = compbuffers = (char **)
 437                         calloc((size_t) ncomps, sizeof(char *))))
 438                 adios(NULL, "unable to allocate component buffers");
 439         if (!(savecomp = used_buf = (struct comp **)
 440                         calloc((size_t) (ncomps+1), sizeof(struct comp *))))
 441                 adios(NULL, "unable to allocate component buffer stack");
 442         savecomp += ncomps + 1;
 443         *--savecomp = NULL;  /* point at zero'd end minus 1 */
 444
 445         for (i = ncomps; i--; )
 446                 *nxtbuf++ = mh_xmalloc(SBUFSIZ);
 447
 448         nxtbuf = compbuffers;  /* point at start */
 449         tmpbuf = *nxtbuf++;
 450
 451         for (ap = addrcomps; *ap; ap++) {
 452                 FINDCOMP(cptr, *ap);
 453                 if (cptr)
 454                         cptr->c_type |= CT_ADDR;
 455         }
 456
 457         /*
 458         ** ignore any components killed by command line switches
 459         */
 460         if (!ccto) {
 461                 FINDCOMP(cptr, "to");
 462                 if (cptr)
 463                         cptr->c_name = "";
 464         }
 465         if (!cccc) {
 466                 FINDCOMP(cptr, "cc");
 467                 if (cptr)
 468                         cptr->c_name = "";
 469         }
 470         if ((cp = getenv("USER"))) {
 471                 FINDCOMP(cptr, "user");
 472                 if (cptr)
 473                         cptr->c_text = getcpy(cp);
 474         }
 475         if (!ccme)
 476                 ismymbox(NULL);
 477
 478         /*
 479         ** pick any interesting stuff out of msg "inb"
 480         */
 481         for (state = FLD;;) {
 482                 state = m_getfld(state, name, tmpbuf, SBUFSIZ, inb);
 483                 switch (state) {
 484                 case FLD:
 485                 case FLDPLUS:
 486                         /*
 487                         ** if we're interested in this component, save
 488                         ** a pointer to the component text, then start
 489                         ** using our next free buffer as the component
 490                         ** temp buffer (buffer switching saves an extra
 491                         ** copy of the component text).
 492                         */
 493                         if ((cptr = wantcomp[CHASH(name)]))
 494                                 do {
 495                                         if (!mh_strcasecmp(name, cptr->c_name)) {
 496                                                 char_read += msg_count;
 497                                                 if (! cptr->c_text) {
 498                                                         i = strlen(cptr->c_text = tmpbuf) - 1;
 499                                                         if (tmpbuf[i] == '\n')
 500                                                                 tmpbuf[i] = '\0';
 501                                                         *--savecomp = cptr;
 502                                                         tmpbuf = *nxtbuf++;
 503                                                 } else {
 504                                                         i = strlen(cp = cptr->c_text) - 1;
 505                                                         if (cp[i] == '\n') {
 506                                                                 if (cptr->c_type & CT_ADDR) {
 507                                                                         cp[i] = '\0';
 508                                                                         cp = add(",\n\t", cp);
 509                                                                 } else {
 510                                                                         cp = add("\t", cp);
 511                                                                 }
 512                                                         }
 513                                                         cptr->c_text = add(tmpbuf, cp);
 514                                                 }
 515                                                 while (state == FLDPLUS) {
 516                                                         state = m_getfld(state, name, tmpbuf,
 517                                                                                           SBUFSIZ, inb);
 518                                                         cptr->c_text = add(tmpbuf, cptr->c_text);
 519                                                         char_read += msg_count;
 520                                                 }
 521                                                 break;
 522                                         }
 523                                 } while ((cptr = cptr->c_next));
 524
 525                         while (state == FLDPLUS)
 526                                 state = m_getfld(state, name, tmpbuf,
 527                                                 SBUFSIZ, inb);
 528                         break;
 529
 530                 case LENERR:
 531                 case FMTERR:
 532                 case BODY:
 533                 case FILEEOF:
 534                         goto finished;
 535
 536                 default:
 537                         adios(NULL, "m_getfld() returned %d", state);
 538                 }
 539         }
 540
 541         /*
 542         ** format and output the header lines.
 543         */
 544 finished:
 545
 546         /*
 547         ** if there's a "Subject" component, strip any "Re:"s off it
 548         */
 549         FINDCOMP(cptr, "subject")
 550         if (cptr && (cp = cptr->c_text)) {
 551                 register char *sp = cp;
 552
 553                 for (;;) {
 554                         while (isspace(*cp))
 555                                 cp++;
 556                         if(uprf(cp, "re:"))
 557                                 cp += 3;
 558                         else
 559                                 break;
 560                         sp = cp;
 561                 }
 562                 if (sp != cptr->c_text) {
 563                         cp = cptr->c_text;
 564                         cptr->c_text = getcpy(sp);
 565                         free(cp);
 566                 }
 567         }
 568         i = format_len + char_read + 256;
 569         scanl = mh_xmalloc((size_t) i + 2);
 570         dat[0] = 0;
 571         dat[1] = 0;
 572         dat[2] = 0;
 573         dat[3] = OUTPUTLINELEN;
 574         dat[4] = 0;
 575         fmt_scan(fmt, scanl, i, dat);
 576         fputs(scanl, out);
 577         if (badaddrs) {
 578                 fputs("\nrepl: bad addresses:\n", out);
 579                 fputs( badaddrs, out);
 580         }
 581
 582         /* Check if we should filter the message */
 583         if (filter) {
 584                 fflush(out);
 585                 if (ferror(out))
 586                         adios(drft, "error writing");
 587
 588                 replfilter(inb, out, filter);
 589         }
 590
 591         fflush(out);
 592         if (ferror(out))
 593                 adios(drft, "error writing");
 594         fclose(out);
 595
 596         if (mime && mp) {
 597                 /* add an attachment header */
 598                 char buffer[BUFSIZ];
 599
 600                 snprintf(buffer, sizeof buffer, "+%s %s",
 601                                 mp->foldpath, m_name(mp->lowsel));
 602                 annotate(drft, attach_hdr, buffer, 0, -2, 1);
 603         }
 604
 605         /* return dynamically allocated buffers */
 606         free(scanl);
 607         for (nxtbuf = compbuffers, i = ncomps; (cptr = *savecomp++);
 608                         nxtbuf++, i--)
 609                 free(cptr->c_text);  /* if not nxtbuf, nxtbuf already freed */
 610         while ( i-- > 0)
 611                 free(*nxtbuf++);  /* free unused nxtbufs */
 612         free((char *) compbuffers);
 613         free((char *) used_buf);
 614 }
 615
 616 static char *buf;  /* our current working buffer */
 617 static char *bufend;  /* end of working buffer */
 618 static char *last_dst;  /* buf ptr at end of last call */
 619 static unsigned int bufsiz=0;  /* current size of buf */
 620
 621 #define BUFINCR 512  /* how much to expand buf when if fills */
 622
 623 #define CPY(s) { cp = (s); while ((*dst++ = *cp++)) ; --dst; }
 624
 625 /*
 626 ** check if there's enough room in buf for str.
 627 ** add more mem if needed
 628 */
 629 #define CHECKMEM(str) \
 630         if ((len = strlen(str)) >= bufend - dst) {\
 631                 int i = dst - buf;\
 632                 int n = last_dst - buf;\
 633                 bufsiz += ((dst + len - bufend) / BUFINCR + 1) * BUFINCR;\
 634                 buf = mh_xrealloc(buf, bufsiz);\
 635                 dst = buf + i;\
 636                 last_dst = buf + n;\
 637                 bufend = buf + bufsiz;\
 638         }
 639
 640
 641 /*
 642 ** fmt_scan will call this routine if the user includes the function
 643 ** "(formataddr {component})" in a format string.  "orig" is the
 644 ** original contents of the string register.  "str" is the address
 645 ** string to be formatted and concatenated onto orig.  This routine
 646 ** returns a pointer to the concatenated address string.
 647 **
 648 ** We try to not do a lot of malloc/copy/free's (which is why we
 649 ** don't call "getcpy") but still place no upper limit on the
 650 ** length of the result string.
 651 **
 652 ** This routine is an override for the equally named one in sbr/fmt_addr.c.
 653 ** Don't delete it!
 654 */
 655 char *
 656 formataddr(char *orig, char *str)
 657 {
 658         register int len;
 659         char baddr[BUFSIZ], error[BUFSIZ];
 660         register int isgroup;
 661         register char *dst;
 662         register char *cp;
 663         register char *sp;
 664         register struct mailname *mp = NULL;
 665
 666         /* if we don't have a buffer yet, get one */
 667         if (bufsiz == 0) {
 668                 buf = mh_xmalloc(BUFINCR);
 669                 last_dst = buf;  /* XXX */
 670                 bufsiz = BUFINCR - 6;  /* leave some slop */
 671                 bufend = buf + bufsiz;
 672         }
 673         /*
 674         ** If "orig" points to our buffer we can just pick up where we
 675         ** left off.  Otherwise we have to copy orig into our buffer.
 676         */
 677         if (orig == buf)
 678                 dst = last_dst;
 679         else if (!orig || !*orig) {
 680                 dst = buf;
 681                 *dst = '\0';
 682         } else {
 683                 dst = last_dst;  /* XXX */
 684                 CHECKMEM(orig);
 685                 CPY(orig);
 686         }
 687
 688         /* concatenate all the new addresses onto 'buf' */
 689         for (isgroup = 0; (cp = getname(str)); ) {
 690                 if ((mp = getm(cp, dfhost, dftype, AD_NAME, error)) == NULL) {
 691                         snprintf(baddr, sizeof(baddr), "\t%s -- %s\n",
 692                                         cp, error);
 693                         badaddrs = add(baddr, badaddrs);
 694                         continue;
 695                 }
 696                 if (isgroup && (mp->m_gname || !mp->m_ingrp)) {
 697                         *dst++ = ';';
 698                         isgroup = 0;
 699                 }
 700                 if (insert(mp)) {
 701                         /* if we get here we're going to add an address */
 702                         if (dst != buf) {
 703                                 *dst++ = ',';
 704                                 *dst++ = ' ';
 705                         }
 706                         if (mp->m_gname) {
 707                                 CHECKMEM(mp->m_gname);
 708                                 CPY(mp->m_gname);
 709                                 isgroup++;
 710                         }
 711                         sp = adrformat(mp);
 712                         CHECKMEM(sp);
 713                         CPY(sp);
 714                 }
 715         }
 716
 717         if (isgroup)
 718                 *dst++ = ';';
 719
 720         *dst = '\0';
 721         last_dst = dst;
 722         return (buf);
 723 }
 724
 725
 726 static int
 727 insert(struct mailname *np)
 728 {
 729         char buffer[BUFSIZ];
 730         register struct mailname *mp;
 731
 732         if (np->m_mbox == NULL)
 733                 return 0;
 734
 735         for (mp = &mq; mp->m_next; mp = mp->m_next) {
 736                 if (!mh_strcasecmp(np->m_host, mp->m_next->m_host) &&
 737                                 !mh_strcasecmp(np->m_mbox, mp->m_next->m_mbox))
 738                         return 0;
 739         }
 740         if (!ccme && ismymbox(np))
 741                 return 0;
 742
 743         if (querysw) {
 744                 snprintf(buffer, sizeof(buffer), "Reply to %s? ",
 745                                 adrformat(np));
 746                 if (!gans(buffer, anoyes))
 747                 return 0;
 748         }
 749         mp->m_next = np;
 750
 751 #ifdef ISI
 752         if (ismymbox(np))
 753                 ccme = 0;
 754 #endif
 755
 756         return 1;
 757 }
 758
 759
 760 /*
 761 ** Call the mhlproc
 762 **
 763 ** This function expects that argument out has been fflushed by the caller.
 764 */
 765
 766 static void
 767 replfilter(FILE *in, FILE *out, char *filter)
 768 {
 769         int pid;
 770         char *mhl;
 771         char *errstr;
 772
 773         if (filter == NULL)
 774                 return;
 775
 776         if (access(filter, R_OK) == NOTOK)
 777                 adios(filter, "unable to read");
 778
 779         mhl = mhbasename(mhlproc);
 780
 781         rewind(in);
 782         lseek(fileno(in), (off_t) 0, SEEK_SET);
 783
 784         switch (pid = fork()) {
 785         case NOTOK:
 786                 adios("fork", "unable to");
 787
 788         case OK:
 789                 dup2(fileno(in), fileno(stdin));
 790                 dup2(fileno(out), fileno(stdout));
 791                 closefds(3);
 792
 793                 execlp(mhlproc, mhl, "-form", filter, "-noclear", NULL);
 794                 errstr = strerror(errno);
 795                 write(2, "unable to exec ", 15);
 796                 write(2, mhlproc, strlen(mhlproc));
 797                 write(2, ": ", 2);
 798                 write(2, errstr, strlen(errstr));
 799                 write(2, "\n", 1);
 800                 _exit(-1);
 801
 802         default:
 803                 if (pidXwait(pid, mhl))
 804                         done(1);
 805                 fseek(out, 0L, SEEK_END);
 806                 break;
 807         }
 808 }