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                     if (!(cp = *argp++) || *cp == '-')
 315                         adios (NULL, "missing argument to %s", argp[-2]);
 316                     /* create a minimal context */
 317                     if (context_foil (cp) == -1)
 318                         done(1);
 319                     continue;
 320
 321                 case ANNOSW:
 322                     /* -idanno switch ignored */
 323                     if (!(cp = *argp++) || *cp == '-')
 324                         adios (NULL, "missing argument to %s", argp[-2]);
 325                     continue;
 326             }
 327         }
 328         if (msg)
 329             adios (NULL, "only one message at a time!");
 330         else
 331             msg = cp;
 332     }
 333
 334     if (aliasflg < 0)
 335         alias (AliasFile);      /* load default aka's */
 336
 337     if (!msg)
 338         adios (NULL, "usage: %s [switches] file", invo_name);
 339
 340     if ((in = fopen (msg, "r")) == NULL)
 341         adios (msg, "unable to open");
 342
 343     start_headers ();
 344     if (debug) {
 345         verbose++;
 346         out = stdout;
 347     }
 348     else {
 349             mktemp (tmpfil);
 350             if ((out = fopen (tmpfil, "w")) == NULL)
 351                 adios (tmpfil, "unable to create");
 352             chmod (tmpfil, 0600);
 353         }
 354
 355     hdrtab = (msgstate == normal) ? NHeaders : RHeaders;
 356
 357     for (compnum = 1, state = FLD;;) {
 358         switch (state = m_getfld (state, name, buf, sizeof(buf), in)) {
 359             case FLD:
 360                 compnum++;
 361                 putfmt (name, buf, out);
 362                 continue;
 363
 364             case FLDPLUS:
 365                 compnum++;
 366                 cp = add (buf, cp);
 367                 while (state == FLDPLUS) {
 368                     state = m_getfld (state, name, buf, sizeof(buf), in);
 369                     cp = add (buf, cp);
 370                 }
 371                 putfmt (name, cp, out);
 372                 free (cp);
 373                 continue;
 374
 375             case BODY:
 376                 finish_headers (out);
 377                 fprintf (out, "\n%s", buf);
 378                 if(whomflg == 0)
 379                     while (state == BODY) {
 380                         state = m_getfld (state, name, buf, sizeof(buf), in);
 381                         fputs (buf, out);
 382                     }
 383                 break;
 384
 385             case FILEEOF:
 386                 finish_headers (out);
 387                 break;
 388
 389             case LENERR:
 390             case FMTERR:
 391                 adios (NULL, "message format error in component #%d",
 392                         compnum);
 393
 394             default:
 395                 adios (NULL, "getfld() returned %d", state);
 396         }
 397         break;
 398     }
 399
 400     fclose (in);
 401     if (backflg && !whomflg) {
 402         strncpy (buf, m_backup (msg), sizeof(buf));
 403         if (rename (msg, buf) == NOTOK)
 404             advise (buf, "unable to rename %s to", msg);
 405     }
 406
 407     if (debug) {
 408         done (0);
 409     }
 410     else
 411         fclose (out);
 412
 413     file (tmpfil);
 414
 415     /*
 416      * re-open the temp file, unlink it and exec sendmail, giving it
 417      * the msg temp file as std in.
 418      */
 419     if ( freopen( tmpfil, "r", stdin) == NULL)
 420         adios (tmpfil, "can't reopen for sendmail");
 421     if (rmflg)
 422         unlink (tmpfil);
 423
 424     argp = sargv;
 425     *argp++ = "send-mail";
 426     *argp++ = "-m";     /* send to me too */
 427     *argp++ = "-t";     /* read msg for recipients */
 428     *argp++ = "-i";     /* don't stop on "." */
 429     if (whomflg)
 430         *argp++ = "-bv";
 431     if (watch || verbose)
 432         *argp++ = "-v";
 433     *argp = NULL;
 434
 435     if (pushflg && !(watch || verbose)) {
 436         /* fork to a child to run sendmail */
 437         for (i=0; (pid = vfork()) == NOTOK && i < 5; i++)
 438             sleep(5);
 439         switch (pid) {
 440             case NOTOK:
 441                 fprintf (verbose ? stdout : stderr, "%s: can't fork to %s\n",
 442                          invo_name, sendmail);
 443                 exit(-1);
 444             case OK:
 445                 /* we're the child .. */
 446                 break;
 447             default:
 448                 exit(0);
 449         }
 450     }
 451     execv ( sendmail, sargv);
 452     adios ( sendmail, "can't exec");
 453 }
 454
 455 /* DRAFT GENERATION */
 456
 457 static void
 458 putfmt (char *name, char *str, FILE *out)
 459 {
 460     int i;
 461     char *cp, *pp;
 462     struct headers *hdr;
 463
 464     while (*str == ' ' || *str == '\t')
 465         str++;
 466
 467     if ((i = get_header (name, hdrtab)) == NOTOK) {
 468         fprintf (out, "%s: %s", name, str);
 469         return;
 470     }
 471
 472     hdr = &hdrtab[i];
 473     if (hdr->flags & HIGN)
 474         return;
 475     if (hdr->flags & HBAD) {
 476         advise (NULL, "illegal header line -- %s:", name);
 477         badmsg++;
 478         return;
 479     }
 480     msgflags |= hdr->set;
 481
 482     if (hdr->flags & HSUB)
 483         subject = subject ? add (str, add ("\t", subject)) : getcpy (str);
 484
 485     if (hdr->flags & HFCC) {
 486         if ((cp = strrchr(str, '\n')))
 487             *cp = 0;
 488         for (cp = pp = str; cp = strchr(pp, ','); pp = cp) {
 489             *cp++ = 0;
 490             insert_fcc (hdr, pp);
 491         }
 492         insert_fcc (hdr, pp);
 493         return;
 494     }
 495
 496 #ifdef notdef
 497     if (hdr->flags & HBCC) {
 498         insert_bcc(str);
 499         return;
 500     }
 501 #endif  /* notdef */
 502
 503     if (*str != '\n' && *str != '\0')
 504         if (aliasflg && hdr->flags & HTRY) {
 505             /* this header contains address(es) that we have to do
 506              * alias expansion on.  Because of the saved state in
 507              * getname we have to put all the addresses into a list.
 508              * We then let putadr munch on that list, possibly
 509              * expanding aliases.
 510              */
 511             register struct mailname *f = 0;
 512             register struct mailname *mp = 0;
 513
 514             while ((cp = getname(str))) {
 515                 mp = getm( cp, NULL, 0, AD_HOST, NULL);
 516                 if (f == 0) {
 517                     f = mp;
 518                     mp->m_next = mp;
 519                 } else {
 520                     mp->m_next = f->m_next;
 521                     f->m_next = mp;
 522                     f = mp;
 523                 }
 524             }
 525             f = mp->m_next; mp->m_next = 0;
 526             putadr( name, f );
 527         } else {
 528             fprintf (out, "%s: %s", name, str );
 529         }
 530 }
 531
 532
 533 static void
 534 start_headers (void)
 535 {
 536     char *cp;
 537     char sigbuf[BUFSIZ];
 538
 539     strncpy(from, getusername(), sizeof(from));
 540
 541     if ((cp = getfullname ()) && *cp) {
 542         strncpy (sigbuf, cp, sizeof(sigbuf));
 543         snprintf (signature, sizeof(signature), "%s <%s>", sigbuf,  from);
 544     }
 545     else
 546         snprintf (signature, sizeof(signature), "%s",  from);
 547 }
 548
 549
 550 static void
 551 finish_headers (FILE *out)
 552 {
 553     switch (msgstate) {
 554         case normal:
 555             if (!(msgflags & MDAT))
 556                 fprintf (out, "Date: %s\n", dtimenow (0));
 557             if (msgflags & MFRM)
 558                 fprintf (out, "Sender: %s\n", from);
 559             else
 560                 fprintf (out, "From: %s\n", signature);
 561 #ifdef notdef
 562             if (!(msgflags & MVIS))
 563                 fprintf (out, "Bcc: Blind Distribution List: ;\n");
 564 #endif  /* notdef */
 565             break;
 566
 567         case resent:
 568             if (!(msgflags & MRDT))
 569                 fprintf (out, "Resent-Date: %s\n", dtimenow(0));
 570             if (msgflags & MRFM)
 571                 fprintf (out, "Resent-Sender: %s\n", from);
 572             else
 573                 fprintf (out, "Resent-From: %s\n", signature);
 574 #ifdef notdef
 575             if (!(msgflags & MVIS))
 576                 fprintf (out, "Resent-Bcc: Blind Re-Distribution List: ;\n");
 577 #endif  /* notdef */
 578             break;
 579     }
 580
 581     if (badmsg)
 582         adios (NULL, "re-format message and try again");
 583 }
 584
 585
 586 static int
 587 get_header (char *header, struct headers *table)
 588 {
 589     struct headers *h;
 590
 591     for (h = table; h->value; h++)
 592         if (!strcasecmp (header, h->value))
 593             return (h - table);
 594
 595     return NOTOK;
 596 }
 597
 598
 599 /*
 600  * output the address list for header "name".  The address list
 601  * is a linked list of mailname structs.  "nl" points to the head
 602  * of the list.  Alias substitution should be done on nl.
 603  */
 604 static void
 605 putadr (char *name, struct mailname *nl)
 606 {
 607     register struct mailname *mp, *mp2;
 608     register int linepos;
 609     register char *cp;
 610     int namelen;
 611
 612     fprintf (out, "%s: ", name);
 613     namelen = strlen(name) + 2;
 614     linepos = namelen;
 615
 616     for (mp = nl; mp; ) {
 617         if (linepos > MAX_SM_FIELD) {
 618                 fprintf (out, "\n%s: ", name);
 619                 linepos = namelen;
 620         }
 621         if (mp->m_nohost) {
 622             /* a local name - see if it's an alias */
 623             cp = akvalue(mp->m_mbox);
 624             if (cp == mp->m_mbox)
 625                 /* wasn't an alias - use what the user typed */
 626                 linepos = putone( mp->m_text, linepos, namelen );
 627             else
 628                 /* an alias - expand it */
 629                 while ((cp = getname(cp))) {
 630                     if (linepos > MAX_SM_FIELD) {
 631                             fprintf (out, "\n%s: ", name);
 632                             linepos = namelen;
 633                     }
 634                     mp2 = getm( cp, NULL, 0, AD_HOST, NULL);
 635                     if (akvisible()) {
 636                         mp2->m_pers = getcpy(mp->m_mbox);
 637                         linepos = putone( adrformat(mp2), linepos, namelen );
 638                     } else {
 639                         linepos = putone( mp2->m_text, linepos, namelen );
 640                     }
 641                     mnfree( mp2 );
 642                 }
 643         } else {
 644             /* not a local name - use what the user typed */
 645             linepos = putone( mp->m_text, linepos, namelen );
 646         }
 647         mp2 = mp;
 648         mp = mp->m_next;
 649         mnfree( mp2 );
 650     }
 651     putc( '\n', out );
 652 }
 653
 654 static int
 655 putone (char *adr, int pos, int indent)
 656 {
 657     register int len;
 658     static int linepos;
 659
 660     len = strlen( adr );
 661     if (pos == indent)
 662         linepos = pos;
 663     else if ( linepos+len > outputlinelen ) {
 664         fprintf ( out, ",\n%*s", indent, "");
 665         linepos = indent;
 666         pos += indent + 2;
 667     }
 668     else {
 669         fputs( ", ", out );
 670         linepos += 2;
 671         pos += 2;
 672     }
 673     fputs( adr, out );
 674
 675     linepos += len;
 676     return (pos+len);
 677 }
 678
 679
 680 static void
 681 insert_fcc (struct headers *hdr, char *pp)
 682 {
 683     char   *cp;
 684
 685     for (cp = pp; isspace (*cp); cp++)
 686         continue;
 687     for (pp += strlen (pp) - 1; pp > cp && isspace (*pp); pp--)
 688         continue;
 689     if (pp >= cp)
 690         *++pp = 0;
 691     if (*cp == 0)
 692         return;
 693
 694     if (fccind >= FCCS)
 695         adios (NULL, "too many %ss", hdr->value);
 696     fccfold[fccind++] = getcpy (cp);
 697 }
 698
 699 #if 0
 700 /* BCC GENERATION */
 701
 702 static void
 703 make_bcc_file (void)
 704 {
 705     pid_t child_id;
 706     int fd, i, status;
 707     char *vec[6];
 708     FILE * in, *out;
 709
 710     mktemp (bccfil);
 711     if ((out = fopen (bccfil, "w")) == NULL)
 712         adios (bccfil, "unable to create");
 713     chmod (bccfil, 0600);
 714
 715     fprintf (out, "Date: %s\n", dtimenow (0));
 716     fprintf (out, "From: %s\n", signature);
 717     if (subject)
 718         fprintf (out, "Subject: %s", subject);
 719     fprintf (out, "BCC:\n\n------- Blind-Carbon-Copy\n\n");
 720     fflush (out);
 721
 722     if (filter == NULL) {
 723         if ((fd = open (tmpfil, O_RDONLY)) == NOTOK)
 724             adios (NULL, "unable to re-open");
 725         cpydgst (fd, fileno (out), tmpfil, bccfil);
 726         close (fd);
 727     }
 728     else {
 729         vec[0] = r1bindex (mhlproc, '/');
 730
 731         for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
 732             sleep (5);
 733         switch (child_id) {
 734             case NOTOK:
 735                 adios ("vfork", "unable to");
 736
 737             case OK:
 738                 dup2 (fileno (out), 1);
 739
 740                 i = 1;
 741                 vec[i++] = "-forward";
 742                 vec[i++] = "-form";
 743                 vec[i++] = filter;
 744                 vec[i++] = tmpfil;
 745                 vec[i] = NULL;
 746
 747                 execvp (mhlproc, vec);
 748                 adios (mhlproc, "unable to exec");
 749
 750             default:
 751                 if (status = pidwait(child_id, OK))
 752                     admonish (NULL, "%s lost (status=0%o)", vec[0], status);
 753                 break;
 754         }
 755     }
 756
 757     fseek (out, 0L, SEEK_END);
 758     fprintf (out, "\n------- End of Blind-Carbon-Copy\n");
 759     fclose (out);
 760 }
 761 #endif  /* if 0 */
 762
 763 /* FCC INTERACTION */
 764
 765 static void
 766 file (char *path)
 767 {
 768     int i;
 769
 770     if (fccind == 0)
 771         return;
 772
 773     for (i = 0; i < fccind; i++)
 774         if (whomflg)
 775             printf ("Fcc: %s\n", fccfold[i]);
 776         else
 777             fcc (path, fccfold[i]);
 778 }
 779
 780
 781 static void
 782 fcc (char *file, char *folder)
 783 {
 784     pid_t child_id;
 785     int i, status;
 786     char fold[BUFSIZ];
 787
 788     if (verbose)
 789         printf ("%sFcc: %s\n", msgstate == resent ? "Resent-" : "", folder);
 790     fflush (stdout);
 791
 792     for (i = 0; (child_id = vfork()) == NOTOK && i < 5; i++)
 793         sleep (5);
 794     switch (child_id) {
 795         case NOTOK:
 796             if (!verbose)
 797                 fprintf (stderr, "  %sFcc %s: ",
 798                         msgstate == resent ? "Resent-" : "", folder);
 799             fprintf (verbose ? stdout : stderr, "no forks, so not ok\n");
 800             break;
 801
 802         case OK:
 803             snprintf (fold, sizeof(fold), "%s%s",
 804                     *folder == '+' || *folder == '@' ? "" : "+", folder);
 805             execlp (fileproc, r1bindex (fileproc, '/'),
 806                     "-link", "-file", file, fold, NULL);
 807             _exit (-1);
 808
 809         default:
 810             if ((status = pidwait(child_id, OK))) {
 811                 if (!verbose)
 812                     fprintf (stderr, "  %sFcc %s: ",
 813                             msgstate == resent ? "Resent-" : "", folder);
 814                 fprintf (verbose ? stdout : stderr,
 815                         " errored (0%o)\n", status);
 816             }
 817     }
 818
 819     fflush (stdout);
 820 }
 821
 822
 823 #if 0
 824
 825 /*
 826  * TERMINATION
 827  */
 828
 829 static void
 830 die (char *what, char *fmt, ...)
 831 {
 832     va_list ap;
 833
 834     va_start(ap, fmt);
 835     advertise (what, NULL, fmt, ap);
 836     va_end(ap);
 837
 838     done (1);
 839 }
 840 #endif