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

   1
   2 /*
   3  * inc.c -- incorporate messages from a maildrop into a folder
   4  *
   5  * $Id$
   6  */
   7
   8 #ifdef MAILGROUP
   9 /* Revised: Sat Apr 14 17:08:17 PDT 1990 (marvit@hplabs)
  10  *    Added hpux hacks to set and reset gid to be "mail" as needed. The reset
  11  *    is necessary so inc'ed mail is the group of the inc'er, rather than
  12  *    "mail". We setgid to egid only when [un]locking the mail file. This
  13  *    is also a major security precaution which will not be explained here.
  14  *
  15  * Fri Feb  7 16:04:57 PST 1992         John Romine <bug-mh@ics.uci.edu>
  16  *   NB: I'm not 100% sure that this setgid stuff is secure even now.
  17  */
  18 #endif
  19
  20 #include <h/mh.h>
  21 #include <fcntl.h>
  22
  23 #ifdef POP
  24 # include <h/dropsbr.h>
  25 # include <h/popsbr.h>
  26 #endif
  27
  28 #ifdef HESIOD
  29 # include <hesiod.h>
  30 #endif
  31
  32 #include <h/fmt_scan.h>
  33 #include <h/scansbr.h>
  34 #include <h/signals.h>
  35 #include <zotnet/tws/tws.h>
  36 #include <zotnet/mts/mts.h>
  37 #include <errno.h>
  38 #include <signal.h>
  39
  40 #ifndef POP
  41 # define POPminc(a) (a)
  42 #else
  43 # define POPminc(a)  0
  44 #endif
  45
  46 #ifndef RPOP
  47 # define RPOPminc(a) (a)
  48 #else
  49 # define RPOPminc(a)  0
  50 #endif
  51
  52 #ifndef APOP
  53 # define APOPminc(a) (a)
  54 #else
  55 # define APOPminc(a)  0
  56 #endif
  57
  58 #ifndef KPOP
  59 # define KPOPminc(a) (a)
  60 #else
  61 # define KPOPminc(a)  0
  62 #endif
  63
  64 static struct swit switches[] = {
  65 #define AUDSW                      0
  66     { "audit audit-file", 0 },
  67 #define NAUDSW                     1
  68     { "noaudit", 0 },
  69 #define CHGSW                      2
  70     { "changecur", 0 },
  71 #define NCHGSW                     3
  72     { "nochangecur", 0 },
  73 #define FILESW                     4
  74     { "file name", 0 },
  75 #define FORMSW                     5
  76     { "form formatfile", 0 },
  77 #define FMTSW                      6
  78     { "format string", 5 },
  79 #define HOSTSW                     7
  80     { "host hostname", POPminc (-4) },
  81 #define USERSW                     8
  82     { "user username", POPminc (-4) },
  83 #define PACKSW                     9
  84     { "pack file", POPminc (-4) },
  85 #define NPACKSW                   10
  86     { "nopack", POPminc (-6) },
  87 #define APOPSW                    11
  88     { "apop", APOPminc (-4) },
  89 #define NAPOPSW                   12
  90     { "noapop", APOPminc (-6) },
  91 #define RPOPSW                    13
  92     { "rpop", RPOPminc (-4) },
  93 #define NRPOPSW                   14
  94     { "norpop", RPOPminc (-6) },
  95 #define SILSW                     15
  96     { "silent", 0 },
  97 #define NSILSW                    16
  98     { "nosilent", 0 },
  99 #define TRNCSW                    17
 100     { "truncate", 0 },
 101 #define NTRNCSW                   18
 102     { "notruncate", 0 },
 103 #define WIDTHSW                   19
 104     { "width columns", 0 },
 105 #define VERSIONSW                 20
 106     { "version", 0 },
 107 #define HELPSW                    21
 108     { "help", 0 },
 109 #define SNOOPSW                   22
 110     { "snoop", -5 },
 111 #define KPOPSW                    23
 112     { "kpop", KPOPminc (-4) },
 113     { NULL, 0 }
 114 };
 115
 116 extern int errno;
 117
 118 /*
 119  * flags for the mail source
 120  */
 121 #define INC_FILE  0
 122 #define INC_POP   1
 123
 124 static int inc_type;
 125 static int snoop = 0;
 126
 127 #ifdef POP
 128 extern char response[];
 129
 130 static char *packfile = NULL;
 131 static int size;
 132 static long pos;
 133 static long start;
 134 static long stop;
 135
 136 static int mbx_style = MMDF_FORMAT;
 137 static int pd = NOTOK;
 138 static FILE *pf = NULL;
 139 #endif /* POP */
 140
 141
 142 /*
 143  * For setting and returning to "mail" gid
 144  */
 145 #ifdef MAILGROUP
 146 static int return_gid;
 147 #endif
 148
 149 /*
 150  * prototypes
 151  */
 152 char *map_name(char *);
 153
 154 #ifdef POP
 155 int done(int);
 156 static int pop_action(char *);
 157 static int pop_pack(char *);
 158 static int map_count(void);
 159 #endif
 160
 161
 162 int
 163 main (int argc, char **argv)
 164 {
 165     int chgflag = 1, trnflag = 1;
 166     int noisy = 1, width = 0, locked = 0;
 167     int rpop, i, hghnum, msgnum;
 168     int kpop = 0;
 169     char *cp, *maildir, *folder = NULL;
 170     char *format = NULL, *form = NULL;
 171     char *newmail, *host = NULL, *user = NULL;
 172     char *audfile = NULL, *from = NULL;
 173     char buf[BUFSIZ], **argp, *nfs, **arguments;
 174     struct msgs *mp;
 175     struct stat st, s1;
 176     FILE *in, *aud = NULL;
 177
 178 #ifdef POP
 179     int nmsgs, nbytes, p = 0;
 180     char *pass = NULL;
 181 #endif
 182
 183 #ifdef MHE
 184     FILE *mhe = NULL;
 185 #endif
 186
 187 #ifdef HESIOD
 188     struct hes_postoffice *po;
 189     char *tmphost;
 190 #endif
 191
 192 #ifdef LOCALE
 193     setlocale(LC_ALL, "");
 194 #endif
 195     invo_name = r1bindex (argv[0], '/');
 196
 197     /* read user profile/context */
 198     context_read();
 199
 200     mts_init (invo_name);
 201     arguments = getarguments (invo_name, argc, argv, 1);
 202     argp = arguments;
 203
 204 #ifdef POP
 205 # ifdef HESIOD
 206     /*
 207      * Scheme is:
 208      *        use MAILHOST environment variable if present,
 209      *  else try Hesiod.
 210      *  If that fails, use the default (if any)
 211      *  provided by mts.conf in mts_init()
 212      */
 213     if ((tmphost = getenv("MAILHOST")) != NULL)
 214         pophost = tmphost;
 215     else if ((po = hes_getmailhost(getusername())) != NULL &&
 216              strcmp(po->po_type, "POP") == 0)
 217         pophost = po->po_host;
 218 # endif /* HESIOD */
 219     /*
 220      * If there is a valid "pophost" entry in mts.conf,
 221      * then use it as the default host.
 222      */
 223     if (pophost && *pophost)
 224         host = pophost;
 225
 226     if ((cp = getenv ("MHPOPDEBUG")) && *cp)
 227         snoop++;
 228 #endif /* POP */
 229
 230     rpop = 0;
 231
 232     while ((cp = *argp++)) {
 233         if (*cp == '-') {
 234             switch (smatch (++cp, switches)) {
 235             case AMBIGSW:
 236                 ambigsw (cp, switches);
 237                 done (1);
 238             case UNKWNSW:
 239                 adios (NULL, "-%s unknown", cp);
 240
 241             case HELPSW:
 242                 snprintf (buf, sizeof(buf), "%s [+folder] [switches]", invo_name);
 243                 print_help (buf, switches, 1);
 244                 done (1);
 245             case VERSIONSW:
 246                 print_version(invo_name);
 247                 done (1);
 248
 249             case AUDSW:
 250                 if (!(cp = *argp++) || *cp == '-')
 251                     adios (NULL, "missing argument to %s", argp[-2]);
 252                 audfile = getcpy (m_maildir (cp));
 253                 continue;
 254             case NAUDSW:
 255                 audfile = NULL;
 256                 continue;
 257
 258             case CHGSW:
 259                 chgflag++;
 260                 continue;
 261             case NCHGSW:
 262                 chgflag = 0;
 263                 continue;
 264
 265             /*
 266              * The flag `trnflag' has the value:
 267              *
 268              * 2 if -truncate is given
 269              * 1 by default (truncating is default)
 270              * 0 if -notruncate is given
 271              */
 272             case TRNCSW:
 273                 trnflag = 2;
 274                 continue;
 275             case NTRNCSW:
 276                 trnflag = 0;
 277                 continue;
 278
 279             case FILESW:
 280                 if (!(cp = *argp++) || *cp == '-')
 281                     adios (NULL, "missing argument to %s", argp[-2]);
 282                 from = path (cp, TFILE);
 283
 284                 /*
 285                  * If the truncate file is in default state,
 286                  * change to not truncate.
 287                  */
 288                 if (trnflag == 1)
 289                     trnflag = 0;
 290                 continue;
 291
 292             case SILSW:
 293                 noisy = 0;
 294                 continue;
 295             case NSILSW:
 296                 noisy++;
 297                 continue;
 298
 299             case FORMSW:
 300                 if (!(form = *argp++) || *form == '-')
 301                     adios (NULL, "missing argument to %s", argp[-2]);
 302                 format = NULL;
 303                 continue;
 304             case FMTSW:
 305                 if (!(format = *argp++) || *format == '-')
 306                     adios (NULL, "missing argument to %s", argp[-2]);
 307                 form = NULL;
 308                 continue;
 309
 310             case WIDTHSW:
 311                 if (!(cp = *argp++) || *cp == '-')
 312                     adios (NULL, "missing argument to %s", argp[-2]);
 313                 width = atoi (cp);
 314                 continue;
 315
 316             case HOSTSW:
 317                 if (!(host = *argp++) || *host == '-')
 318                     adios (NULL, "missing argument to %s", argp[-2]);
 319                 continue;
 320             case USERSW:
 321                 if (!(user = *argp++) || *user == '-')
 322                     adios (NULL, "missing argument to %s", argp[-2]);
 323                 continue;
 324
 325             case PACKSW:
 326 #ifndef POP
 327                 if (!(cp = *argp++) || *cp == '-')
 328                     adios (NULL, "missing argument to %s", argp[-2]);
 329 #else /* POP */
 330                 if (!(packfile = *argp++) || *packfile == '-')
 331                     adios (NULL, "missing argument to %s", argp[-2]);
 332 #endif /* POP */
 333                 continue;
 334             case NPACKSW:
 335 #ifdef POP
 336                 packfile = NULL;
 337 #endif /* POP */
 338                 continue;
 339
 340             case APOPSW:
 341                 rpop = -1;
 342                 continue;
 343             case NAPOPSW:
 344                 rpop = 0;
 345                 continue;
 346
 347             case RPOPSW:
 348                 rpop = 1;
 349                 continue;
 350             case NRPOPSW:
 351                 rpop = 0;
 352                 continue;
 353
 354             case KPOPSW:
 355                 kpop = 1;
 356                 continue;
 357
 358             case SNOOPSW:
 359                 snoop++;
 360                 continue;
 361             }
 362         }
 363         if (*cp == '+' || *cp == '@') {
 364             if (folder)
 365                 adios (NULL, "only one folder at a time!");
 366             else
 367                 folder = path (cp + 1, *cp == '+' ? TFOLDER : TSUBCWF);
 368         } else {
 369             adios (NULL, "usage: %s [+folder] [switches]", invo_name);
 370         }
 371     }
 372
 373 #ifdef MAILGROUP
 374     return_gid = getegid();  /* Save effective gid, assuming we'll use it */
 375     setgid(getgid());        /* Turn off extraordinary privileges         */
 376 #endif  /* MAILGROUP */
 377
 378 #ifdef POP
 379     if (host && !*host)
 380         host = NULL;
 381     if (from || !host || rpop <= 0)
 382         setuid (getuid ());
 383 #endif /* POP */
 384
 385     /*
 386      * Where are we getting the new mail?
 387      */
 388     if (from)
 389         inc_type = INC_FILE;
 390 #ifdef POP
 391     else if (host)
 392         inc_type = INC_POP;
 393 #endif
 394     else
 395         inc_type = INC_FILE;
 396
 397 #ifdef POP
 398     /*
 399      * Are we getting the mail from
 400      * a POP server?
 401      */
 402     if (inc_type == INC_POP) {
 403         if (user == NULL)
 404             user = getusername ();
 405         if (kpop || ( rpop > 0))
 406             pass = getusername ();
 407         else
 408             ruserpass (host, &user, &pass);
 409
 410         /*
 411          * initialize POP connection
 412          */
 413         if (pop_init (host, user, pass, snoop, kpop ? 1 : rpop, kpop) == NOTOK)
 414             adios (NULL, "%s", response);
 415
 416         /* Check if there are any messages */
 417         if (pop_stat (&nmsgs, &nbytes) == NOTOK)
 418             adios (NULL, "%s", response);
 419
 420         if (rpop > 0)
 421             setuid (getuid ());
 422         if (nmsgs == 0) {
 423             pop_quit();
 424             adios (NULL, "no mail to incorporate");
 425         }
 426     }
 427 #endif /* POP */
 428
 429     /*
 430      * We will get the mail from a file
 431      * (typically the standard maildrop)
 432      */
 433
 434     if (inc_type == INC_FILE) {
 435         if (from)
 436             newmail = from;
 437         else if ((newmail = getenv ("MAILDROP")) && *newmail)
 438             newmail = m_mailpath (newmail);
 439         else if ((newmail = context_find ("maildrop")) && *newmail)
 440             newmail = m_mailpath (newmail);
 441         else {
 442             newmail = concat (MAILDIR, "/", MAILFIL, NULL);
 443         }
 444         if (stat (newmail, &s1) == NOTOK || s1.st_size == 0)
 445             adios (NULL, "no mail to incorporate");
 446     }
 447
 448 #ifdef POP
 449     /* skip the folder setup */
 450     if ((inc_type == INC_POP) && packfile)
 451         goto go_to_it;
 452 #endif /* POP */
 453
 454     if (!context_find ("path"))
 455         free (path ("./", TFOLDER));
 456     if (!folder)
 457         folder = getfolder (0);
 458     maildir = m_maildir (folder);
 459
 460     if (stat (maildir, &st) == NOTOK) {
 461         if (errno != ENOENT)
 462             adios (maildir, "error on folder");
 463         cp = concat ("Create folder \"", maildir, "\"? ", NULL);
 464         if (noisy && !getanswer (cp))
 465             done (1);
 466         free (cp);
 467         if (!makedir (maildir))
 468             adios (NULL, "unable to create folder %s", maildir);
 469     }
 470
 471     if (chdir (maildir) == NOTOK)
 472         adios (maildir, "unable to change directory to");
 473
 474     /* read folder and create message structure */
 475     if (!(mp = folder_read (folder)))
 476         adios (NULL, "unable to read folder %s", folder);
 477
 478 #ifdef POP
 479 go_to_it:
 480 #endif /* POP */
 481
 482     if (inc_type == INC_FILE) {
 483         if (access (newmail, W_OK) != NOTOK) {
 484             locked++;
 485             if (trnflag) {
 486                 SIGNAL (SIGHUP, SIG_IGN);
 487                 SIGNAL (SIGINT, SIG_IGN);
 488                 SIGNAL (SIGQUIT, SIG_IGN);
 489                 SIGNAL (SIGTERM, SIG_IGN);
 490             }
 491
 492 #ifdef MAILGROUP
 493             setgid(return_gid); /* Reset gid to lock mail file */
 494 #endif /* MAILGROUP */
 495
 496             /* lock and fopen the mail spool */
 497             if ((in = lkfopen (newmail, "r")) == NULL)
 498                 adios (NULL, "unable to lock and fopen %s", newmail);
 499
 500 #ifdef MAILGROUP
 501             setgid(getgid());   /* Return us to normal privileges */
 502 #endif /* MAILGROUP */
 503             fstat (fileno(in), &s1);
 504         } else {
 505             trnflag = 0;
 506             if ((in = fopen (newmail, "r")) == NULL)
 507                 adios (newmail, "unable to read");
 508         }
 509     }
 510
 511 #ifdef MAILGROUP
 512     setgid(getgid());   /* Return us to normal privileges */
 513 #endif /* MAILGROUP */
 514
 515     if (audfile) {
 516         if ((i = stat (audfile, &st)) == NOTOK)
 517             advise (NULL, "Creating Receive-Audit: %s", audfile);
 518         if ((aud = fopen (audfile, "a")) == NULL)
 519             adios (audfile, "unable to append to");
 520         else if (i == NOTOK)
 521             chmod (audfile, m_gmprot ());
 522
 523 #ifdef POP
 524         fprintf (aud, from ? "<<inc>> %s -ms %s\n"
 525                  : host ? "<<inc>> %s -host %s -user %s%s\n"
 526                  : "<<inc>> %s\n",
 527                  dtimenow (0), from ? from : host, user,
 528                  rpop < 0 ? " -apop" : rpop > 0 ? " -rpop" : "");
 529 #else /* POP */
 530         fprintf (aud, from ? "<<inc>> %s  -ms %s\n" : "<<inc>> %s\n",
 531                  dtimenow (0), from);
 532 #endif /* POP */
 533     }
 534
 535 #ifdef MHE
 536     if (context_find ("mhe")) {
 537         cp = concat (maildir, "/++", NULL);
 538         i = stat (cp, &st);
 539         if ((mhe = fopen (cp, "a")) == NULL)
 540             admonish (cp, "unable to append to");
 541         else
 542             if (i == NOTOK)
 543                 chmod (cp, m_gmprot ());
 544         free (cp);
 545     }
 546 #endif /* MHE */
 547
 548     /* Get new format string */
 549     nfs = new_fs (form, format, FORMAT);
 550
 551     if (noisy) {
 552         printf ("Incorporating new mail into %s...\n\n", folder);
 553         fflush (stdout);
 554     }
 555
 556 #ifdef POP
 557     /*
 558      * Get the mail from a POP server
 559      */
 560     if (inc_type == INC_POP) {
 561         if (packfile) {
 562             packfile = path (packfile, TFILE);
 563             if (stat (packfile, &st) == NOTOK) {
 564                 if (errno != ENOENT)
 565                     adios (packfile, "error on file");
 566                 cp = concat ("Create file \"", packfile, "\"? ", NULL);
 567                 if (noisy && !getanswer (cp))
 568                     done (1);
 569                 free (cp);
 570             }
 571             msgnum = map_count ();
 572             if ((pd = mbx_open (packfile, mbx_style, getuid(), getgid(), m_gmprot()))
 573                 == NOTOK)
 574                 adios (packfile, "unable to open");
 575             if ((pf = fdopen (pd, "w+")) == NULL)
 576                 adios (NULL, "unable to fdopen %s", packfile);
 577         } else {
 578             hghnum = msgnum = mp->hghmsg;
 579             /*
 580              * Check if we have enough message space for all the new
 581              * messages.  If not, then realloc the folder and add enough
 582              * space for all new messages plus 10 additional slots.
 583              */
 584             if (mp->hghmsg + nmsgs >= mp->hghoff
 585                 && !(mp = folder_realloc (mp, mp->lowoff, mp->hghmsg + nmsgs + 10)))
 586                 adios (NULL, "unable to allocate folder storage");
 587         }
 588
 589         for (i = 1; i <= nmsgs; i++) {
 590             msgnum++;
 591             if (packfile) {
 592                 fseek (pf, 0L, SEEK_CUR);
 593                 pos = ftell (pf);
 594                 size = 0;
 595                 fwrite (mmdlm1, 1, strlen (mmdlm1), pf);
 596                 start = ftell (pf);
 597
 598                 if (pop_retr (i, pop_pack) == NOTOK)
 599                     adios (NULL, "%s", response);
 600
 601                 fseek (pf, 0L, SEEK_CUR);
 602                 stop = ftell (pf);
 603                 if (fflush (pf))
 604                     adios (packfile, "write error on");
 605                 fseek (pf, start, SEEK_SET);
 606             } else {
 607                 cp = getcpy (m_name (msgnum));
 608                 if ((pf = fopen (cp, "w+")) == NULL)
 609                     adios (cp, "unable to write");
 610                 chmod (cp, m_gmprot ());
 611                 start = stop = 0L;
 612
 613                 if (pop_retr (i, pop_action) == NOTOK)
 614                     adios (NULL, "%s", response);
 615
 616                 if (fflush (pf))
 617                     adios (cp, "write error on");
 618                 fseek (pf, 0L, SEEK_SET);
 619             }
 620             switch (p = scan (pf, msgnum, 0, nfs, width,
 621                               packfile ? 0 : msgnum == mp->hghmsg + 1 && chgflag,
 622                               1, NULL, stop - start, noisy)) {
 623             case SCNEOF:
 624                 printf ("%*d  empty\n", DMAXFOLDER, msgnum);
 625                 break;
 626
 627             case SCNFAT:
 628                 trnflag = 0;
 629                 noisy++;
 630                 /* advise (cp, "unable to read"); already advised */
 631                 /* fall thru */
 632
 633             case SCNERR:
 634             case SCNNUM:
 635                 break;
 636
 637             case SCNMSG:
 638             case SCNENC:
 639             default:
 640                 if (aud)
 641                     fputs (scanl, aud);
 642 # ifdef MHE
 643                 if (mhe)
 644                     fputs (scanl, mhe);
 645 # endif /* MHE */
 646                 if (noisy)
 647                     fflush (stdout);
 648                 if (!packfile) {
 649                     clear_msg_flags (mp, msgnum);
 650                     set_exists (mp, msgnum);
 651                     set_unseen (mp, msgnum);
 652                     mp->msgflags |= SEQMOD;
 653                 }
 654                 break;
 655             }
 656             if (packfile) {
 657                 fseek (pf, stop, SEEK_SET);
 658                 fwrite (mmdlm2, 1, strlen (mmdlm2), pf);
 659                 if (fflush (pf) || ferror (pf)) {
 660                     int e = errno;
 661                     pop_quit ();
 662                     errno = e;
 663                     adios (packfile, "write error on");
 664                 }
 665                 map_write (packfile, pd, 0, 0L, start, stop, pos, size, noisy);
 666             } else {
 667                 if (ferror(pf) || fclose (pf)) {
 668                     int e = errno;
 669                     unlink (cp);
 670                     pop_quit ();
 671                     errno = e;
 672                     adios (cp, "write error on");
 673                 }
 674                 free (cp);
 675             }
 676
 677             if (trnflag && pop_dele (i) == NOTOK)
 678                 adios (NULL, "%s", response);
 679         }
 680
 681         if (pop_quit () == NOTOK)
 682             adios (NULL, "%s", response);
 683         if (packfile) {
 684             mbx_close (packfile, pd);
 685             pd = NOTOK;
 686         }
 687     }
 688 #endif /* POP */
 689
 690     /*
 691      * Get the mail from file (usually mail spool)
 692      */
 693     if (inc_type == INC_FILE) {
 694         m_unknown (in);         /* the MAGIC invocation... */
 695         hghnum = msgnum = mp->hghmsg;
 696         for (i = 0;;) {
 697             /*
 698              * Check if we need to allocate more space for message status.
 699              * If so, then add space for an additional 100 messages.
 700              */
 701             if (msgnum >= mp->hghoff
 702                 && !(mp = folder_realloc (mp, mp->lowoff, mp->hghoff + 100))) {
 703                 advise (NULL, "unable to allocate folder storage");
 704                 i = NOTOK;
 705                 break;
 706             }
 707
 708 #if 0
 709             /* copy file from spool to tmp file */
 710             tmpfilenam = m_scratch ("", invo_name);
 711             if ((fd = creat (tmpfilenam, m_gmprot ())) == NOTOK)
 712                 adios (tmpfilenam, "unable to create");
 713             chmod (tmpfilenam, m_gmprot ());
 714             if (!(in2 = fdopen (fd, "r+")))
 715                 adios (tmpfilenam, "unable to access");
 716             cpymsg (in, in2);
 717
 718             /* link message into folder */
 719             newmsg = folder_addmsg(mp, tmpfilenam);
 720 #endif
 721
 722             /* create scanline for new message */
 723             switch (i = scan (in, msgnum + 1, msgnum + 1, nfs, width,
 724                               msgnum == hghnum && chgflag, 1, NULL, 0L, noisy)) {
 725             case SCNFAT:
 726             case SCNEOF:
 727                 break;
 728
 729             case SCNERR:
 730                 if (aud)
 731                     fputs ("inc aborted!\n", aud);
 732                 advise (NULL, "aborted!");      /* doesn't clean up locks! */
 733                 break;
 734
 735             case SCNNUM:
 736                 advise (NULL, "BUG in %s, number out of range", invo_name);
 737                 break;
 738
 739             default:
 740                 advise (NULL, "BUG in %s, scan() botch (%d)", invo_name, i);
 741                 break;
 742
 743             case SCNMSG:
 744             case SCNENC:
 745                 if (aud)
 746                     fputs (scanl, aud);
 747 #ifdef MHE
 748                 if (mhe)
 749                     fputs (scanl, mhe);
 750 #endif /* MHE */
 751                 if (noisy)
 752                     fflush (stdout);
 753
 754                 msgnum++;
 755                 mp->hghmsg++;
 756                 clear_msg_flags (mp, msgnum);
 757                 set_exists (mp, msgnum);
 758                 set_unseen (mp, msgnum);
 759                 mp->msgflags |= SEQMOD;
 760                 continue;
 761             }
 762             break;
 763         }
 764     }
 765
 766 #ifdef POP
 767     if (p < 0) {                /* error */
 768 #else
 769     if (i < 0) {                /* error */
 770 #endif
 771         if (locked) {
 772 #ifdef MAILGROUP
 773             /* Be sure we can unlock mail file */
 774             setgid(return_gid);
 775 #endif /* MAILGROUP */
 776
 777             lkfclose (in, newmail);
 778
 779 #ifdef MAILGROUP
 780             /* And then return us to normal privileges */
 781             setgid(getgid());
 782 #endif /* MAILGROUP */
 783         } else {
 784             fclose (in);
 785         }
 786         adios (NULL, "failed");
 787     }
 788
 789     if (aud)
 790         fclose (aud);
 791
 792 #ifdef MHE
 793     if (mhe)
 794         fclose (mhe);
 795 #endif /* MHE */
 796
 797     if (noisy)
 798         fflush (stdout);
 799
 800 #ifdef POP
 801     if ((inc_type == INC_POP) && packfile)
 802         done (0);
 803 #endif /* POP */
 804
 805     /*
 806      * truncate file we are incorporating from
 807      */
 808     if (inc_type == INC_FILE) {
 809         if (trnflag) {
 810             if (stat (newmail, &st) != NOTOK && s1.st_mtime != st.st_mtime)
 811                 advise (NULL, "new messages have arrived!\007");
 812             else {
 813                 if ((i = creat (newmail, 0600)) != NOTOK)
 814                     close (i);
 815                 else
 816                     admonish (newmail, "error zero'ing");
 817                 unlink(map_name(newmail));
 818             }
 819         } else {
 820             if (noisy)
 821                 printf ("%s not zero'd\n", newmail);
 822         }
 823     }
 824
 825     if (msgnum == hghnum) {
 826         admonish (NULL, "no messages incorporated");
 827     } else {
 828         context_replace (pfolder, folder);      /* update current folder */
 829         if (chgflag)
 830             mp->curmsg = hghnum + 1;
 831         mp->hghmsg = msgnum;
 832         if (mp->lowmsg == 0)
 833             mp->lowmsg = 1;
 834         if (chgflag)            /* sigh... */
 835             seq_setcur (mp, mp->curmsg);
 836     }
 837
 838     /*
 839      * unlock the mail spool
 840      */
 841     if (inc_type == INC_FILE) {
 842         if (locked) {
 843 #ifdef MAILGROUP
 844             setgid(return_gid); /* Be sure we can unlock mail file */
 845 #endif /* MAILGROUP */
 846
 847             lkfclose (in, newmail);
 848
 849 #ifdef MAILGROUP
 850             setgid(getgid());   /* And then return us to normal privileges */
 851 #endif /* MAILGROUP */
 852         } else {
 853             fclose (in);
 854         }
 855     }
 856
 857     seq_setunseen (mp, 0);      /* set the Unseen-Sequence */
 858     seq_save (mp);              /* synchronize sequences   */
 859     context_save ();            /* save the context file   */
 860     return done (0);
 861 }
 862
 863
 864 #if 0
 865
 866 /*
 867  * Copy message message from spool into
 868  * temporary file.  Massage the "From " line
 869  * while copying.
 870  */
 871
 872 cpymsg (FILE *in, FILE *out)
 873 {
 874     int state;
 875     char *tmpbuf, name[NAMESZ];
 876
 877     for (;;) {
 878         state = m_getfld (state, name, tmpbuf, rlwidth, in);
 879         switch (state) {
 880         case FLD:
 881         case FLDPLUS:
 882             break;
 883         case BODY:
 884             break;
 885         case LENERR:
 886         case FMTERR:
 887             break;
 888         case FILEEOF:
 889             break;
 890         default:
 891         }
 892     }
 893 }
 894 #endif /* if 0 */
 895
 896
 897 #ifdef POP
 898 int
 899 done (int status)
 900 {
 901     if (packfile && pd != NOTOK)
 902         mbx_close (packfile, pd);
 903
 904     exit (status);
 905     return 1;  /* dead code to satisfy the compiler */
 906 }
 907
 908 static int
 909 pop_action (char *s)
 910 {
 911     fprintf (pf, "%s\n", s);
 912     stop += strlen (s) + 1;
 913     return 0;  /* Is return value used?  This was missing before 1999-07-15. */
 914 }
 915
 916 static int
 917 pop_pack (char *s)
 918 {
 919     int j;
 920     char buffer[BUFSIZ];
 921
 922     snprintf (buffer, sizeof(buffer), "%s\n", s);
 923     for (j = 0; (j = stringdex (mmdlm1, buffer)) >= 0; buffer[j]++)
 924         continue;
 925     for (j = 0; (j = stringdex (mmdlm2, buffer)) >= 0; buffer[j]++)
 926         continue;
 927     fputs (buffer, pf);
 928     size += strlen (buffer) + 1;
 929     return 0;  /* Is return value used?  This was missing before 1999-07-15. */
 930 }
 931
 932 static int
 933 map_count (void)
 934 {
 935     int md;
 936     char *cp;
 937     struct drop d;
 938     struct stat st;
 939
 940     if (stat (packfile, &st) == NOTOK)
 941         return 0;
 942     if ((md = open (cp = map_name (packfile), O_RDONLY)) == NOTOK
 943             || map_chk (cp, md, &d, (long) st.st_size, 1)) {
 944         if (md != NOTOK)
 945             close (md);
 946         return 0;
 947     }
 948     close (md);
 949     return (d.d_id);
 950 }
 951 #endif /* POP */