diplodocus.org Git - nmh/blob - uip/spost.c

   1
   2 /*
   3  * spost.c -- feed messages to sendmail
   4  *
   5  * This is a simpler, faster, replacement for "post" for use
   6  * when "sendmail" is the transport system.
   7  *
   8  * $Id$
   9  */
  10
  11 #include <h/mh.h>
  12 #include <signal.h>
  13 #include <h/addrsbr.h>
  14 #include <h/aliasbr.h>
  15 #include <h/dropsbr.h>
  16 #include <zotnet/tws/tws.h>
  17
  18 #define uptolow(c)      ((isalpha(c) && isupper (c)) ? tolower (c) : c)
  19
  20 #define MAX_SM_FIELD    1476    /* < largest hdr field sendmail will accept */
  21 #define FCCS            10      /* max number of fccs allowed */
  22
  23 struct swit switches[] = {
  24 #define FILTSW               0
  25     { "filter filterfile", 0 },
  26 #define NFILTSW              1
  27     { "nofilter", 0 },
  28 #define FRMTSW               2
  29     { "format", 0 },
  30 #define NFRMTSW              3
  31     { "noformat", 0 },
  32 #define REMVSW               4
  33     { "remove", 0 },
  34 #define NREMVSW              5
  35     { "noremove", 0 },
  36 #define VERBSW               6
  37     { "verbose", 0 },
  38 #define NVERBSW              7
  39     { "noverbose", 0 },
  40 #define WATCSW               8
  41     { "watch", 0 },
  42 #define NWATCSW              9
  43     { "nowatch", 0 },
  44 #define BACKSW              10
  45     { "backup", 0 },
  46 #define NBACKSW             11
  47     { "nobackup", 0 },
  48 #define ALIASW              12
  49     { "alias aliasfile", 0 },
  50 #define NALIASW             13
  51     { "noalias", 0 },
  52 #define WIDTHSW             14
  53     { "width columns", 0 },
  54 #define VERSIONSW           15
  55     { "version", 0 },
  56 #define HELPSW              16
  57     { "help", 4 },
  58 #define DEBUGSW             17
  59     { "debug", -5 },
  60 #define DISTSW              18
  61     { "dist", -4 },             /* interface from dist */
  62 #define CHKSW               19
  63     { "check", -5 },            /* interface from whom */
  64 #define NCHKSW              20
  65     { "nocheck", -7 },          /* interface from whom */
  66 #define WHOMSW              21
  67     { "whom", -4 },             /* interface from whom */
  68 #define PUSHSW              22  /* fork to sendmail then exit */
  69     { "push", -4 },
  70 #define NPUSHSW             23  /* exec sendmail */
  71     { "nopush", -6 },
  72 #define LIBSW               24
  73     { "library directory", -7 },
  74 #define ANNOSW              25
  75     { "idanno number", -6 },
  76     { NULL, 0 }
  77 };
  78
  79
  80 /* flags for headers->flags */
  81 #define HNOP    0x0000          /* just used to keep .set around */
  82 #define HBAD    0x0001          /* bad header - don't let it through */
  83 #define HADR    0x0002          /* header has an address field */
  84 #define HSUB    0x0004          /* Subject: header */
  85 #define HTRY    0x0008          /* try to send to addrs on header */
  86 #define HBCC    0x0010          /* don't output this header */
  87 #define HMNG    0x0020          /* mung this header */
  88 #define HNGR    0x0040          /* no groups allowed in this header */
  89 #define HFCC    0x0080          /* FCC: type header */
  90 #define HNIL    0x0100          /* okay for this header not to have addrs */
  91 #define HIGN    0x0200          /* ignore this header */
  92
  93 /* flags for headers->set */
  94 #define MFRM    0x0001          /* we've seen a From: */
  95 #define MDAT    0x0002          /* we've seen a Date: */
  96 #define MRFM    0x0004          /* we've seen a Resent-From: */
  97 #define MVIS    0x0008          /* we've seen sighted addrs */
  98 #define MINV    0x0010          /* we've seen blind addrs */
  99 #define MRDT    0x0020          /* we've seen a Resent-Date: */
 100
 101 struct headers {
 102     char *value;
 103     unsigned int flags;
 104     unsigned int set;
 105 };
 106
 107
 108 static struct headers NHeaders[] = {
 109     { "Return-Path", HBAD,                0 },
 110     { "Received",    HBAD,                0 },
 111     { "Reply-To",    HADR|HNGR,           0 },
 112     { "From",        HADR|HNGR,           MFRM },
 113     { "Sender",      HADR|HBAD,           0 },
 114     { "Date",        HNOP,                MDAT },
 115     { "Subject",     HSUB,                0 },
 116     { "To",          HADR|HTRY,           MVIS },
 117     { "cc",          HADR|HTRY,           MVIS },
 118     { "Bcc",         HADR|HTRY|HBCC|HNIL, MINV },
 119     { "Message-Id",  HBAD,                0 },
 120     { "Fcc",         HFCC,                0 },
 121     { NULL,          0,                   0 }
 122 };
 123
 124 static struct headers RHeaders[] = {
 125     { "Resent-Reply-To",   HADR|HNGR,      0 },
 126     { "Resent-From",       HADR|HNGR,      MRFM },
 127     { "Resent-Sender",     HADR|HBAD,      0 },
 128     { "Resent-Date",       HNOP,           MRDT },
 129     { "Resent-Subject",    HSUB,           0 },
 130     { "Resent-To",         HADR|HTRY,      MVIS },
 131     { "Resent-cc",         HADR|HTRY,      MVIS },
 132     { "Resent-Bcc",        HADR|HTRY|HBCC, MINV },
 133     { "Resent-Message-Id", HBAD,           0 },
 134     { "Resent-Fcc",        HFCC,           0 },
 135     { "Reply-To",          HADR,           0 },
 136     { "Fcc",               HIGN,           0 },
 137     { NULL,                0,              0 }
 138 };
 139
 140
 141 static short fccind = 0;        /* index into fccfold[] */
 142
 143 static int badmsg = 0;          /* message has bad semantics            */
 144 static int verbose = 0;         /* spell it out                         */
 145 static int debug = 0;           /* debugging post                       */
 146 static int rmflg = 1;           /* remove temporary file when done      */
 147 static int watch = 0;           /* watch the delivery process           */
 148 static int backflg = 0;         /* rename input file as *.bak when done */
 149 static int whomflg = 0;         /* if just checking addresses           */
 150 static int pushflg = 0;         /* if going to fork to sendmail         */
 151 static int aliasflg = -1;       /* if going to process aliases          */
 152 static int outputlinelen=72;
 153
 154 static unsigned msgflags = 0;   /* what we've seen */
 155
 156 static enum {
 157     normal, resent
 158 } msgstate = normal;
 159
 160 static char tmpfil[] = "/tmp/pstXXXXXX";
 161
 162 static char from[BUFSIZ];       /* my network address */
 163 static char signature[BUFSIZ];  /* my signature */
 164 static char *filter = NULL;     /* the filter for BCC'ing */
 165 static char *subject = NULL;    /* the subject field for BCC'ing */
 166 static char *fccfold[FCCS];     /* foldernames for FCC'ing */
 167
 168 static struct headers *hdrtab;  /* table for the message we're doing */
 169 static FILE *out;               /* output (temp) file */
 170
 171 extern char *sendmail;
 172
 173 /*
 174  * external prototypes
 175  */
 176 extern char *getfullname (void);
 177 extern char *getusername (void);
 178
 179 /*
 180  * static prototypes
 181  */
 182 static void putfmt (char *, char *, FILE *);
 183 static void start_headers (void);
 184 static void finish_headers (FILE *);
 185 static int get_header (char *, struct headers *);
 186 static void putadr (char *, struct mailname *);
 187 static int putone (char *, int, int);
 188 static void insert_fcc (struct headers *, char *);
 189 static void file (char *);
 190 static void fcc (char *, char *);
 191
 192 #if 0
 193 static void die (char *, char *, ...);
 194 static void make_bcc_file (void);
 195 #endif
 196
 197
 198 int
 199 main (int argc, char **argv)
 200 {
 201     int state, i, pid, compnum;
 202     char *cp, *msg = NULL, **argp, **arguments;
 203     char *sargv[16], buf[BUFSIZ], name[NAMESZ];
 204     FILE *in;
 205
 206 #ifdef LOCALE
 207     setlocale(LC_ALL, "");
 208 #endif
 209     invo_name = r1bindex (argv[0], '/');
 210
 211     /* foil search of user profile/context */
 212     if (context_foil (NULL) == -1)
 213         done (1);
 214
 215     mts_init (invo_name);
 216     arguments = getarguments (invo_name, argc, argv, 0);
 217     argp = arguments;
 218
 219     while ((cp = *argp++)) {
 220         if (*cp == '-') {
 221             switch (smatch (++cp, switches)) {
 222                 case AMBIGSW:
 223                     ambigsw (cp, switches);
 224                     done (1);
 225                 case UNKWNSW:
 226                     adios (NULL, "-%s unknown", cp);
 227
 228                 case HELPSW:
 229                     snprintf (buf, sizeof(buf), "%s [switches] file", invo_name);
 230                     print_help (buf, switches, 1);
 231                     done (1);
 232                 case VERSIONSW:
 233                     print_version(invo_name);
 234                     done (1);
 235
 236                 case DEBUGSW:
 237                     debug++;
 238                     continue;
 239
 240                 case DISTSW:
 241                     msgstate = resent;
 242                     continue;
 243
 244                 case WHOMSW:
 245                     whomflg++;
 246                     continue;
 247
 248                 case FILTSW:
 249                     if (!(filter = *argp++) || *filter == '-')
 250                         adios (NULL, "missing argument to %s", argp[-2]);
 251                     continue;
 252                 case NFILTSW:
 253                     filter = NULL;
 254                     continue;
 255
 256                 case REMVSW:
 257                     rmflg++;
 258                     continue;
 259                 case NREMVSW:
 260                     rmflg = 0;
 261                     continue;
 262
 263                 case BACKSW:
 264                     backflg++;
 265                     continue;
 266                 case NBACKSW:
 267                     backflg = 0;
 268                     continue;
 269
 270                 case VERBSW:
 271                     verbose++;
 272                     continue;
 273                 case NVERBSW:
 274                     verbose = 0;
 275                     continue;
 276
 277                 case WATCSW:
 278                     watch++;
 279                     continue;
 280                 case NWATCSW:
 281                     watch = 0;
 282                     continue;
 283
 284                 case PUSHSW:
 285                     pushflg++;
 286                     continue;
 287                 case NPUSHSW:
 288                     pushflg = 0;
 289                     continue;
 290
 291                 case ALIASW:
 292                     if (!(cp = *argp++) || *cp == '-')
 293                         adios (NULL, "missing argument to %s", argp[-2]);
 294                     if (aliasflg < 0)
 295                         alias (AliasFile);/* load default aka's */
 296                     aliasflg = 1;
 297                     if ((state = alias(cp)) != AK_OK)
 298                         adios (NULL, "aliasing error in file %s - %s",
 299                                cp, akerror(state) );
 300                     continue;
 301                 case NALIASW:
 302                     aliasflg = 0;
 303                     continue;
 304
 305                 case WIDTHSW:
 306                     if (!(cp = *argp++) || *cp == '-')
 307                         adios (NULL, "missing argument to %s", argp[-2]);
 308                     outputlinelen = atoi (cp);
 309                     if (outputlinelen <= 10)
 310                         outputlinelen = 72;
 311                     continue;
 312
 313                 case LIBSW:
 314                 case ANNOSW:
 315                     /* -library & -idanno switch ignored */
 316                     if (!(cp = *argp++) || *cp == '-')
 317                         adios (NULL, "missing argument to %s", argp[-2]);
 318                     continue;
 319             }
 320         }
 321         if (msg)
 322             adios (NULL, "only one message at a time!");
 323         else
 324             msg = cp;
 325     }
 326
 327     if (aliasflg < 0)
 328         alias (AliasFile);      /* load default aka's */
 329
 330     if (!msg)
 331         adios (NULL, "usage: %s [switches] file", invo_name);
 332
 333     if ((in = fopen (msg, "r")) == NULL)
 334         adios (msg, "unable to open");
 335
 336     start_headers ();
 337     if (debug) {
 338         verbose++;
 339         out = stdout;
 340     }
 341     else {
 342             mktemp (tmpfil);
 343             if ((out = fopen (tmpfil, "w")) == NULL)
 344                 adios (tmpfil, "unable to create");
 345             chmod (tmpfil, 0600);
 346         }
 347
 348     hdrtab = (msgstate == normal) ? NHeaders : RHeaders;
 349
 350     for (compnum = 1, state = FLD;;) {
 351         switch (state = m_getfld (state, name, buf, sizeof(buf), in)) {
 352             case FLD:
 353                 compnum++;
 354                 putfmt (name, buf, out);
 355                 continue;
 356
 357             case FLDPLUS:
 358                 compnum++;
 359                 cp = add (buf, cp);
 360                 while (state == FLDPLUS) {
 361                     state = m_getfld (state, name, buf, sizeof(buf), in);
 362                     cp = add (buf, cp);
 363                 }
 364                 putfmt (name, cp, out);
 365                 free (cp);
 366                 continue;
 367
 368             case BODY:
 369                 finish_headers (out);
 370                 fprintf (out, "\n%s", buf);
 371                 if(whomflg == 0)
 372                     while (state == BODY) {
 373                         state = m_getfld (state, name, buf, sizeof(buf), in);
 374                         fputs (buf, out);
 375                     }
 376                 break;
 377
 378             case FILEEOF:
 379                 finish_headers (out);
 380                 break;
 381
 382             case LENERR:
 383             case FMTERR:
 384                 adios (NULL, "message format error in component #%d",
 385                         compnum);
 386
 387             default:
 388                 adios (NULL, "getfld() returned %d", state);
 389         }
 390         break;
 391     }
 392
 393     fclose (in);
 394     if (backflg && !whomflg) {
 395         strncpy (buf, m_backup (msg), sizeof(buf));
 396         if (rename (msg, buf) == NOTOK)
 397             advise (buf, "unable to rename %s to", msg);
 398     }
 399
 400     if (debug) {
 401         done (0);
 402     }
 403     else
 404         fclose (out);
 405
 406     file (tmpfil);
 407
 408     /*
 409      * re-open the temp file, unlink it and exec sendmail, giving it
 410      * the msg temp file as std in.
 411      */
 412     if ( freopen( tmpfil, "r", stdin) == NULL)
 413         adios (tmpfil, "can't reopen for sendmail");
 414     if (rmflg)
 415         unlink (tmpfil);
 416
 417     argp = sargv;
 418     *argp++ = "send-mail";
 419     *argp++ = "-m";     /* send to me too */
 420     *argp++ = "-t";     /* read msg for recipients */
 421     *argp++ = "-i";     /* don't stop on "." */
 422     if (whomflg)
 423         *argp++ = "-bv";
 424     if (watch || verbose)
 425         *argp++ = "-v";
 426     *argp = NULL;
 427
 428     if (pushflg && !(watch || verbose)) {
 429         /* fork to a child to run sendmail */
 430         for (i=0; (pid = vfork()) == NOTOK && i < 5; i++)
 431             sleep(5);
 432         switch (pid) {
 433             case NOTOK:
 434                 fprintf (verbose ? stdout : stderr, "%s: can't fork to %s\n",
 435                          invo_name, sendmail);
 436                 exit(-1);
 437             case OK:
 438                 /* we're the child .. */
 439                 break;
 440             default:
 441                 exit(0);
 442         }
 443     }
 444     execv ( sendmail, sargv);
 445     adios ( sendmail, "can't exec");
 446 }
 447
 448 /* DRAFT GENERATION */
 449
 450 static void
 451 putfmt (char *name, char *str, FILE *out)
 452 {
 453     int i;
 454     char *cp, *pp;
 455     struct headers *hdr;
 456
 457     while (*str == ' ' || *str == '\t')
 458         str++;
 459
 460     if ((i = get_header (name, hdrtab)) == NOTOK) {
 461         fprintf (out, "%s: %s", name, str);
 462         return;
 463     }
 464
 465     hdr = &hdrtab[i];
 466     if (hdr->flags & HIGN)
 467         return;
 468     if (hdr->flags & HBAD) {
 469         advise (NULL, "illegal header line -- %s:", name);
 470         badmsg++;
 471         return;
 472     }
 473     msgflags |= hdr->set;
 474
 475     if (hdr->flags & HSUB)
 476         subject = subject ? add (str, add ("\t", subject)) : getcpy (str);
 477
 478     if (hdr->flags & HFCC) {
 479         if ((cp = strrchr(str, '\n')))
 480             *cp = 0;
 481         for (cp = pp = str; cp = strchr(pp, ','); pp = cp) {
 482             *cp++ = 0;
 483             insert_fcc (hdr, pp);
 484         }
 485         insert_fcc (hdr, pp);
 486         return;
 487     }
 488
 489 #ifdef notdef
 490     if (hdr->flags & HBCC) {
 491         insert_bcc(str);
 492         return;
 493     }
 494 #endif  /* notdef */
 495
 496     if (*str != '\n' && *str != '\0')
 497         if (aliasflg && hdr->flags & HTRY) {
 498             /* this header contains address(es) that we have to do
 499              * alias expansion on.  Because of the saved state in
 500              * getname we have to put all the addresses into a list.
 501              * We then let putadr munch on that list, possibly
 502              * expanding aliases.
 503              */
 504             register struct mailname *f = 0;
 505             register struct mailname *mp = 0;
 506
 507             while ((cp = getname(str))) {
 508                 mp = getm( cp, NULL, 0, AD_HOST, NULL);
 509                 if (f == 0) {
 510                     f = mp;
 511                     mp->m_next = mp;
 512                 } else {
 513                     mp->m_next = f->m_next;
 514                     f->m_next = mp;
 515                     f = mp;
 516                 }
 517             }
 518             f = mp->m_next; mp->m_next = 0;
 519             putadr( name, f );
 520         } else {
 521             fprintf (out, "%s: %s", name, str );
 522         }
 523 }
 524
 525
 526 static void
 527 start_headers (void)
 528 {
 529     char *cp;
 530     char sigbuf[BUFSIZ];
 531
 532     strncpy(from, getusername(), sizeof(from));
 533
 534     if ((cp = getfullname ()) && *cp) {
 535         strncpy (sigbuf, cp, sizeof(sigbuf));
 536         snprintf (signature, sizeof(signature), "%s <%s>", sigbuf,  from);
 537     }
 538     else
 539         snprintf (signature, sizeof(signature), "%s",  from);
 540 }
 541
 542
 543 static void
 544 finish_headers (FILE *out)
 545 {
 546     switch (msgstate) {
 547         case normal:
 548             if (!(msgflags & MDAT))
 549                 fprintf (out, "Date: %s\n", dtimenow (0));
 550             if (msgflags & MFRM)
 551                 fprintf (out, "Sender: %s\n", from);
 552             else
 553                 fprintf (out, "From: %s\n", signature);
 554 #ifdef notdef
 555             if (!(msgflags & MVIS))
 556                 fprintf (out, "Bcc: Blind Distribution List: ;\n");
 557 #endif  /* notdef */
 558             break;
 559
 560         case resent:
 561             if (!(msgflags & MRDT))
 562                 fprintf (out, "Resent-Date: %s\n", dtimenow(0));
 563             if (msgflags & MRFM)
 564                 fprintf (out, "Resent-Sender: %s\n", from);
 565             else
 566                 fprintf (out, "Resent-From: %s\n", signature);
 567 #ifdef notdef
 568             if (!(msgflags & MVIS))
 569                 fprintf (out, "Resent-Bcc: Blind Re-Distribution List: ;\n");
 570 #endif  /* notdef */
 571             break;
 572     }
 573
 574     if (badmsg)
 575         adios (NULL, "re-format message and try again");
 576 }
 577
 578
 579 static int
 580 get_header (char *header, struct headers *table)
 581 {
 582     struct headers *h;
 583
 584     for (h = table; h->value; h++)
 585         if (!strcasecmp (header, h->value))
 586             return (h - table);
 587
 588     return NOTOK;
 589 }
 590
 591
 592 /*
 593  * output the address list for header "name".  The address list
 594  * is a linked list of mailname structs.  "nl" points to the head
 595  * of the list.  Alias substitution should be done on nl.
 596  */
 597 static void
 598 putadr (char *name, struct mailname *nl)
 599 {
 600     register struct mailname *mp, *mp2;
 601     register int linepos;
 602     register char *cp;
 603     int namelen;
 604
 605     fprintf (out, "%s: ", name);
 606     namelen = strlen(name) + 2;
 607     linepos = namelen;
 608
 609     for (mp = nl; mp; ) {
 610         if (linepos > MAX_SM_FIELD) {
 611                 fprintf (out, "\n%s: ", name);
 612                 linepos = namelen;
 613         }
 614         if (mp->m_nohost) {
 615             /* a local name - see if it's an alias */
 616             cp = akvalue(mp->m_mbox);
 617             if (cp == mp->m_mbox)
 618                 /* wasn't an alias - use what the user typed */
 619                 linepos = putone( mp->m_text, linepos, namelen );
 620             else
 621                 /* an alias - expand it */
 622                 while ((cp = getname(cp))) {
 623                     if (linepos > MAX_SM_FIELD) {
 624                             fprintf (out, "\n%s: ", name);
 625                             linepos = namelen;
 626                     }
 627                     mp2 = getm( cp, NULL, 0, AD_HOST, NULL);
 628                     if (akvisible()) {
 629                         mp2->m_pers = getcpy(mp->m_mbox);
 630                         linepos = putone( adrformat(mp2), linepos, namelen );
 631                     } else {
 632                         linepos = putone( mp2->m_text, linepos, namelen );
 633                     }
 634                     mnfree( mp2 );
 635                 }
 636         } else {
 637             /* not a local name - use what the user typed */
 638             linepos = putone( mp->m_text, linepos, namelen );
 639         }
 640         mp2 = mp;
 641         mp = mp->m_next;
 642         mnfree( mp2 );
 643     }
 644     putc( '\n', out );
 645 }
 646
 647 static int
 648 putone (char *adr, int pos, int indent)
 649 {
 650     register int len;
 651     static int linepos;
 652
 653     len = strlen( adr );
 654     if (pos == indent)
 655         linepos = pos;
 656     else if ( linepos+len > outputlinelen ) {
 657         fprintf ( out, ",\n%*s", indent, "");
 658         linepos = indent;
 659         pos += indent + 2;
 660     }
 661     else {
 662         fputs( ", ", out );
 663         linepos += 2;
 664         pos += 2;
 665     }
 666     fputs( adr, out );
 667
 668     linepos += len;
 669     return (pos+len);
 670 }
 671
 672
 673 static void
 674 insert_fcc (struct headers *hdr, char *pp)
 675 {
 676     char   *cp;
 677
 678     for (cp = pp; isspace (*cp); cp++)
 679         continue;
 680     for (pp += strlen (pp) - 1; pp > cp && isspace (*pp); pp--)
 681         continue;
 682     if (pp >= cp)
 683         *++pp = 0;
 684     if (*cp == 0)
 685         return;
 686
 687     if (fccind >= FCCS)
 688         adios (NULL, "too many %ss", hdr->value);
 689     fccfold[fccind++] = getcpy (cp);
 690 }
 691
 692 #if 0
 693 /* BCC GENERATION */
 694
 695 static void
 696 make_bcc_file (void)
 697 {
 698     pid_t child_id;
 699     int fd, i, status;
 700     char *vec[6];
 701     FILE * in, *out;
 702
 703     mktemp (bccfil);
 704     if ((out = fopen (bccfil, "w")) == NULL)
 705         adios (bccfil, "unable to create");
 706     chmod (bccfil, 0600);
 707
 708     fprintf (out, "Date: %s\n", dtimenow (0));
 709     fprintf (out, "From: %s\n", signature);
 710     if (subject)
 711         fprintf (out, "Subject: %s", subject);
 712     fprintf (out, "BCC:\n\n------- Blind-Carbon-Copy\n\n");
 713     fflush (out);
 714
 715     if (filter == NULL) {
 716         if ((fd = open (tmpfil, O_RDONLY)) == NOTOK)
 717             adios (NULL, "unable to re-open");
 718         cpydgst (fd, fileno (out), tmpfil, bccfil);
 719         close (fd);
 720     }
 721     else {
 722         vec[0] = r1bindex (mhlproc, '/');
 723
 724         for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
 725             sleep (5);
 726         switch (child_id) {
 727             case NOTOK:
 728                 adios ("vfork", "unable to");
 729
 730             case OK:
 731                 dup2 (fileno (out), 1);
 732
 733                 i = 1;
 734                 vec[i++] = "-forward";
 735                 vec[i++] = "-form";
 736                 vec[i++] = filter;
 737                 vec[i++] = tmpfil;
 738                 vec[i] = NULL;
 739
 740                 execvp (mhlproc, vec);
 741                 adios (mhlproc, "unable to exec");
 742
 743             default:
 744                 if (status = pidwait(child_id, OK))
 745                     admonish (NULL, "%s lost (status=0%o)", vec[0], status);
 746                 break;
 747         }
 748     }
 749
 750     fseek (out, 0L, SEEK_END);
 751     fprintf (out, "\n------- End of Blind-Carbon-Copy\n");
 752     fclose (out);
 753 }
 754 #endif  /* if 0 */
 755
 756 /* FCC INTERACTION */
 757
 758 static void
 759 file (char *path)
 760 {
 761     int i;
 762
 763     if (fccind == 0)
 764         return;
 765
 766     for (i = 0; i < fccind; i++)
 767         if (whomflg)
 768             printf ("Fcc: %s\n", fccfold[i]);
 769         else
 770             fcc (path, fccfold[i]);
 771 }
 772
 773
 774 static void
 775 fcc (char *file, char *folder)
 776 {
 777     pid_t child_id;
 778     int i, status;
 779     char fold[BUFSIZ];
 780
 781     if (verbose)
 782         printf ("%sFcc: %s\n", msgstate == resent ? "Resent-" : "", folder);
 783     fflush (stdout);
 784
 785     for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
 786         sleep (5);
 787     switch (child_id) {
 788         case NOTOK:
 789             if (!verbose)
 790                 fprintf (stderr, "  %sFcc %s: ",
 791                         msgstate == resent ? "Resent-" : "", folder);
 792             fprintf (verbose ? stdout : stderr, "no forks, so not ok\n");
 793             break;
 794
 795         case OK:
 796             snprintf (fold, sizeof(fold), "%s%s",
 797                     *folder == '+' || *folder == '@' ? "" : "+", folder);
 798             execlp (fileproc, r1bindex (fileproc, '/'),
 799                     "-link", "-file", file, fold, NULL);
 800             _exit (-1);
 801
 802         default:
 803             if ((status = pidwait(child_id, OK))) {
 804                 if (!verbose)
 805                     fprintf (stderr, "  %sFcc %s: ",
 806                             msgstate == resent ? "Resent-" : "", folder);
 807                 fprintf (verbose ? stdout : stderr,
 808                         " errored (0%o)\n", status);
 809             }
 810     }
 811
 812     fflush (stdout);
 813 }
 814
 815
 816 #if 0
 817
 818 /*
 819  * TERMINATION
 820  */
 821
 822 static void
 823 die (char *what, char *fmt, ...)
 824 {
 825     va_list ap;
 826
 827     va_start(ap, fmt);
 828     advertise (what, NULL, fmt, ap);
 829     va_end(ap);
 830
 831     done (1);
 832 }
 833 #endif