quit.c

   1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
   2  *@ Termination processing.
   3  *
   4  * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
   5  * Copyright (c) 2012 - 2015 Steffen (Daode) Nurpmeso <sdaoden@users.sf.net>.
   6  */
   7 /*
   8  * Copyright (c) 1980, 1993
   9  *      The Regents of the University of California.  All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35 #undef n_FILE
  36 #define n_FILE quit
  37
  38 #ifndef HAVE_AMALGAMATION
  39 # include "nail.h"
  40 #endif
  41
  42 #include <utime.h>
  43
  44 enum quitflags {
  45    QUITFLAG_HOLD      = 1<<0,
  46    QUITFLAG_KEEP      = 1<<1,
  47    QUITFLAG_KEEPSAVE  = 1<<2,
  48    QUITFLAG_APPEND    = 1<<3,
  49    QUITFLAG_EMPTYBOX  = 1<<4
  50 };
  51
  52 struct quitnames {
  53    enum quitflags flag;
  54    enum okeys     okey;
  55 };
  56
  57 static struct quitnames const _quitnames[] = {
  58    {QUITFLAG_HOLD, ok_b_hold},
  59    {QUITFLAG_KEEP, ok_b_keep},
  60    {QUITFLAG_KEEPSAVE, ok_b_keepsave},
  61    {QUITFLAG_APPEND, ok_b_append},
  62    {QUITFLAG_EMPTYBOX, ok_b_emptybox} /* TODO obsolete emptybox */
  63 };
  64
  65 static char _mboxname[PATH_MAX];  /* Name of mbox */
  66
  67 /* Touch the indicated file */
  68 static void _alter(char const *name);
  69
  70 /* Preserve all the appropriate messages back in the system mailbox, and print
  71  * a nice message indicated how many were saved.  On any error, just return -1.
  72  * Else return 0.  Incorporate the any new mail that we found */
  73 static int  writeback(FILE *res, FILE *obuf);
  74
  75 /* Terminate an editing session by attempting to write out the user's file from
  76  * the temporary.  Save any new stuff appended to the file */
  77 static bool_t edstop(void);
  78
  79 /* Remove "mailname", unless *keep* says otherwise; force truncation, then */
  80 static void _demail(void);
  81
  82 static void
  83 _alter(char const *name) /* TODO error handling */
  84 {
  85 #ifdef HAVE_UTIMENSAT
  86    struct timespec tsa[2];
  87 #else
  88    struct stat sb;
  89    struct utimbuf utb;
  90 #endif
  91    NYD_ENTER;
  92
  93 #ifdef HAVE_UTIMENSAT
  94    tsa[0].tv_sec = n_time_epoch() + 1;
  95    tsa[0].tv_nsec = 0;
  96    tsa[1].tv_nsec = UTIME_OMIT;
  97    utimensat(AT_FDCWD, name, tsa, 0);
  98 #else
  99    if (!stat(name, &sb)) {
 100       utb.actime = n_time_epoch() + 1;
 101       utb.modtime = sb.st_mtime;
 102       utime(name, &utb);
 103    }
 104 #endif
 105    NYD_LEAVE;
 106 }
 107
 108 static int
 109 writeback(FILE *res, FILE *obuf)
 110 {
 111    struct message *mp;
 112    int rv = -1, p, c;
 113    NYD_ENTER;
 114
 115    if (fseek(obuf, 0L, SEEK_SET) == -1)
 116       goto jleave;
 117
 118 #ifndef APPEND
 119    if (res != NULL)
 120       while ((c = getc(res)) != EOF)
 121          putc(c, obuf);
 122 #endif
 123    srelax_hold();
 124    for (p = 0, mp = message; PTRCMP(mp, <, message + msgCount); ++mp)
 125       if ((mp->m_flag & MPRESERVE) || !(mp->m_flag & MTOUCH)) {
 126          ++p;
 127          if (sendmp(mp, obuf, NULL, NULL, SEND_MBOX, NULL) < 0) {
 128             n_perr(mailname, 0);
 129             srelax_rele();
 130             goto jerror;
 131          }
 132          srelax();
 133       }
 134    srelax_rele();
 135 #ifdef APPEND
 136    if (res != NULL)
 137       while ((c = getc(res)) != EOF)
 138          putc(c, obuf);
 139 #endif
 140    ftrunc(obuf);
 141
 142    if (ferror(obuf)) {
 143       n_perr(mailname, 0);
 144 jerror:
 145       fseek(obuf, 0L, SEEK_SET);
 146       goto jleave;
 147    }
 148    if (fseek(obuf, 0L, SEEK_SET) == -1)
 149       goto jleave;
 150
 151    _alter(mailname);
 152    if (p == 1)
 153       printf(_("Held 1 message in %s\n"), displayname);
 154    else
 155       printf(_("Held %d messages in %s\n"), p, displayname);
 156    rv = 0;
 157 jleave:
 158    if (res != NULL)
 159       Fclose(res);
 160    NYD_LEAVE;
 161    return rv;
 162 }
 163
 164 static bool_t
 165 edstop(void) /* TODO oh my god */
 166 {
 167    int gotcha, c;
 168    struct message *mp;
 169    FILE *obuf = NULL, *ibuf = NULL;
 170    struct stat statb;
 171    bool_t rv;
 172    NYD_ENTER;
 173
 174    rv = TRU1;
 175
 176    if (mb.mb_perm == 0)
 177       goto j_leave;
 178
 179    hold_sigs();
 180
 181    for (mp = message, gotcha = 0; PTRCMP(mp, <, message + msgCount); ++mp) {
 182       if (mp->m_flag & MNEW) {
 183          mp->m_flag &= ~MNEW;
 184          mp->m_flag |= MSTATUS;
 185       }
 186       if (mp->m_flag & (MODIFY | MDELETED | MSTATUS | MFLAG | MUNFLAG |
 187             MANSWER | MUNANSWER | MDRAFT | MUNDRAFT))
 188          ++gotcha;
 189    }
 190    if (!gotcha)
 191       goto jleave;
 192
 193    rv = FAL0;
 194
 195    /* TODO This is too simple minded?  We should regenerate an index file
 196     * TODO to be able to truly tell whether *anything* has changed!
 197     * TODO (Or better: only come here.. then!  It is an *object method!* */
 198    /* TODO Ignoring stat error is easy, huh? */
 199    if (!stat(mailname, &statb) && statb.st_size > mailsize) {
 200       if ((obuf = Ftmp(NULL, "edstop", OF_RDWR | OF_UNLINK | OF_REGISTER)) ==
 201             NULL) {
 202          n_perr(_("tmpfile"), 0);
 203          goto jleave;
 204       }
 205       if ((ibuf = Zopen(mailname, "r")) == NULL) {
 206          n_perr(mailname, 0);
 207          Fclose(obuf);
 208          goto jleave;
 209       }
 210
 211       n_file_lock(fileno(ibuf), FLT_READ, 0,0, UIZ_MAX); /* TODO ign. lock err*/
 212       fseek(ibuf, (long)mailsize, SEEK_SET);
 213       while ((c = getc(ibuf)) != EOF) /* xxx bytewise??? TODO ... I/O error? */
 214          putc(c, obuf);
 215       Fclose(ibuf);
 216       ibuf = obuf;
 217       fflush_rewind(obuf);
 218    }
 219
 220    printf(_("%s "), n_shell_quote_cp(displayname, FAL0));
 221    fflush(stdout);
 222
 223    if ((obuf = Zopen(mailname, "r+")) == NULL) {
 224       n_perr(mailname, 0);
 225       goto jleave;
 226    }
 227
 228    n_file_lock(fileno(obuf), FLT_WRITE, 0,0, UIZ_MAX); /* TODO ign. lock err! */
 229    ftrunc(obuf);
 230
 231    srelax_hold();
 232    c = 0;
 233    for (mp = message; PTRCMP(mp, <, message + msgCount); ++mp) {
 234       if (mp->m_flag & MDELETED)
 235          continue;
 236       ++c;
 237       if (sendmp(mp, obuf, NULL, NULL, SEND_MBOX, NULL) < 0) {
 238          n_perr(mailname, 0);
 239          srelax_rele();
 240          goto jleave;
 241       }
 242       srelax();
 243    }
 244    srelax_rele();
 245
 246    gotcha = (c == 0 && ibuf == NULL);
 247    if (ibuf != NULL) {
 248       while ((c = getc(ibuf)) != EOF)
 249          putc(c, obuf);
 250    }
 251    fflush(obuf);
 252    if (ferror(obuf)) {
 253       n_perr(mailname, 0);
 254       goto jleave;
 255    }
 256    Fclose(obuf);
 257
 258    if (gotcha && !ok_blook(keep) && !ok_blook(emptybox)/* TODO obsolete eb*/) {
 259       bool_t rms;
 260
 261       if ((rms = n_path_rm(mailname)) == TRU1)
 262          printf((ok_blook(bsdcompat) || ok_blook(bsdmsgs))
 263             ? _("removed\n") : _("removed.\n"));
 264       else {
 265          int e = errno;
 266
 267          printf(_("removal error (ignored)\n"));
 268          n_err(_("Error removing %s (ignored):"),
 269             n_shell_quote_cp(mailname, FAL0)); /* TODO */
 270          n_perr(NULL, e); /* TODO */
 271       }
 272    } else
 273       printf((ok_blook(bsdcompat) || ok_blook(bsdmsgs))
 274          ? _("complete\n") : _("updated.\n"));
 275    fflush(stdout);
 276
 277    rv = TRU1;
 278 jleave:
 279    if (ibuf != NULL)
 280       Fclose(ibuf);
 281    rele_sigs();
 282
 283    if(!rv){
 284       /* TODO The codebase aborted by jumping to the main loop here.
 285        * TODO The OpenBSD mailx simply ignores this error.
 286        * TODO For now we follow the latter unless we are interactive,
 287        * TODO in which case we ask the user whether the error is to be
 288        * TODO ignored or not.  More of this around here in this file! */
 289       rv = getapproval(_("Continue, possibly loosing changes"), TRU1);
 290    }
 291 j_leave:
 292    NYD_LEAVE;
 293    return rv;
 294 }
 295
 296 static void
 297 _demail(void) /* TODO error handling */
 298 {
 299    NYD2_ENTER;
 300    if (ok_blook(keep) || n_path_rm(mailname) <= FAL0) {
 301       /* TODO demail(): try use f?truncate(2) instead?! */
 302       int fd = open(mailname, (O_WRONLY | O_CREAT | n_O_NOFOLLOW | O_TRUNC),
 303             0600);
 304       if (fd >= 0)
 305          close(fd);
 306    }
 307    NYD2_LEAVE;
 308 }
 309
 310 FL bool_t
 311 quit(void)
 312 {
 313    int p, modify, anystat, c;
 314    FILE *fbuf = NULL, *lckfp = NULL, *rbuf, *abuf;
 315    struct message *mp;
 316    struct stat minfo;
 317    bool_t rv;
 318    NYD_ENTER;
 319
 320    rv = FAL0;
 321    temporary_localopts_folder_hook_unroll();
 322
 323    /* If we are read only, we can't do anything, so just return quickly */
 324    /* TODO yet we cannot return quickly if resources have to be released!
 325     * TODO somewhen it'll be mailbox->quit() anyway, for now do it by hand
 326     *if (mb.mb_perm == 0)
 327     *   goto jleave;*/
 328    p = (mb.mb_perm == 0);
 329
 330    /* TODO lex.c:setfile() has just called hold_sigs(); before it called
 331     * TODO us, but this causes uninterruptible hangs due to blocked sigs
 332     * TODO anywhere except for MB_FILE (all others install their own
 333     * TODO handlers, as it seems, properly); marked YYY */
 334    switch (mb.mb_type) {
 335    case MB_FILE:
 336       break;
 337    case MB_MAILDIR:
 338       rele_sigs(); /* YYY */
 339       rv = maildir_quit();
 340       hold_sigs(); /* YYY */
 341       goto jleave;
 342 #ifdef HAVE_POP3
 343    case MB_POP3:
 344       rele_sigs(); /* YYY */
 345       rv = pop3_quit();
 346       hold_sigs(); /* YYY */
 347       goto jleave;
 348 #endif
 349    case MB_VOID:
 350    default:
 351       goto jleave;
 352    }
 353    if (p) {
 354       rv = TRU1;
 355       goto jleave; /* TODO */
 356    }
 357
 358    /* If editing (not reading system mail box), then do the work in edstop() */
 359    if (pstate & PS_EDIT) {
 360       rv = edstop();
 361       goto jleave;
 362    }
 363
 364    /* See if there any messages to save in mbox.  If no, we
 365     * can save copying mbox to /tmp and back.
 366     *
 367     * Check also to see if any files need to be preserved.
 368     * Delete all untouched messages to keep them out of mbox.
 369     * If all the messages are to be preserved, just exit with
 370     * a message */
 371    fbuf = Zopen(mailname, "r+");
 372    if (fbuf == NULL) {
 373       if (errno != ENOENT)
 374 jnewmail:
 375          printf(_("Thou hast new mail.\n"));
 376       rv = TRU1;
 377       goto jleave;
 378    }
 379
 380    if ((lckfp = n_dotlock(mailname, fileno(fbuf), FLT_WRITE, 0,0, UIZ_MAX)
 381          ) == NULL) {
 382       n_perr(_("Unable to (dot) lock mailbox"), 0);
 383       Fclose(fbuf);
 384       fbuf = NULL;
 385       rv = getapproval(_("Continue, possibly loosing changes"), TRU1);
 386       goto jleave;
 387    }
 388
 389    rbuf = NULL;
 390    if (!fstat(fileno(fbuf), &minfo) && minfo.st_size > mailsize) {
 391       printf(_("New mail has arrived.\n"));
 392       rbuf = Ftmp(NULL, "quit", OF_RDWR | OF_UNLINK | OF_REGISTER);
 393       if (rbuf == NULL || fbuf == NULL)
 394          goto jnewmail;
 395 #ifdef APPEND
 396       fseek(fbuf, (long)mailsize, SEEK_SET);
 397       while ((c = getc(fbuf)) != EOF)
 398          putc(c, rbuf);
 399 #else
 400       p = minfo.st_size - mailsize;
 401       while (p-- > 0) {
 402          c = getc(fbuf);
 403          if (c == EOF)
 404             goto jnewmail;
 405          putc(c, rbuf);
 406       }
 407 #endif
 408       fflush_rewind(rbuf);
 409    }
 410
 411    anystat = holdbits();
 412    modify = 0;
 413    for (c = 0, p = 0, mp = message; PTRCMP(mp, <, message + msgCount); ++mp) {
 414       if (mp->m_flag & MBOX)
 415          c++;
 416       if (mp->m_flag & MPRESERVE)
 417          p++;
 418       if (mp->m_flag & MODIFY)
 419          modify++;
 420    }
 421    if (p == msgCount && !modify && !anystat) {
 422       rv = TRU1;
 423       if (p == 1)
 424          printf(_("Held 1 message in %s\n"), displayname);
 425       else if (p > 1)
 426          printf(_("Held %d messages in %s\n"), p, displayname);
 427       goto jleave;
 428    }
 429
 430    if (c == 0) {
 431       if (p != 0) {
 432          if (writeback(rbuf, fbuf) >= 0)
 433             rv = TRU1;
 434          else
 435             rv = getapproval(_("Continue, possibly loosing changes"), TRU1);
 436          goto jleave;
 437       }
 438       goto jcream;
 439    }
 440
 441    if (makembox() == STOP) {
 442       rv = getapproval(_("Continue, possibly loosing changes"), TRU1);
 443       goto jleave;
 444    }
 445
 446    /* Now we are ready to copy back preserved files to the system mailbox, if
 447     * any were requested */
 448    if (p != 0) {
 449       if (writeback(rbuf, fbuf) < 0)
 450          rv = getapproval(_("Continue, possibly loosing changes"), TRU1);
 451       goto jleave;
 452    }
 453
 454    /* Finally, remove his file.  If new mail has arrived, copy it back */
 455 jcream:
 456    if (rbuf != NULL) {
 457       abuf = fbuf;
 458       fseek(abuf, 0L, SEEK_SET);
 459       while ((c = getc(rbuf)) != EOF)
 460          putc(c, abuf);
 461       Fclose(rbuf);
 462       ftrunc(abuf);
 463       _alter(mailname);
 464       rv = TRU1;
 465    } else {
 466       _demail();
 467       rv = TRU1;
 468    }
 469 jleave:
 470    if (fbuf != NULL) {
 471       Fclose(fbuf);
 472       if (lckfp != NULL && lckfp != (FILE*)-1)
 473          Pclose(lckfp, FAL0);
 474    }
 475    NYD_LEAVE;
 476    return rv;
 477 }
 478
 479 FL int
 480 holdbits(void)
 481 {
 482    struct message *mp;
 483    int anystat, autohold, holdbit, nohold;
 484    NYD_ENTER;
 485
 486    anystat = 0;
 487    autohold = ok_blook(hold);
 488    holdbit = autohold ? MPRESERVE : MBOX;
 489    nohold = MBOX | MSAVED | MDELETED | MPRESERVE;
 490    if (ok_blook(keepsave))
 491       nohold &= ~MSAVED;
 492    for (mp = message; PTRCMP(mp, <, message + msgCount); ++mp) {
 493       if (mp->m_flag & MNEW) {
 494          mp->m_flag &= ~MNEW;
 495          mp->m_flag |= MSTATUS;
 496       }
 497       if (mp->m_flag & (MSTATUS | MFLAG | MUNFLAG | MANSWER | MUNANSWER |
 498             MDRAFT | MUNDRAFT))
 499          ++anystat;
 500       if (!(mp->m_flag & MTOUCH))
 501          mp->m_flag |= MPRESERVE;
 502       if (!(mp->m_flag & nohold))
 503          mp->m_flag |= holdbit;
 504    }
 505    NYD_LEAVE;
 506    return anystat;
 507 }
 508
 509 FL enum okay
 510 makembox(void) /* TODO oh my god */
 511 {
 512    struct message *mp;
 513    char *mbox, *tempQuit;
 514    int mcount, c;
 515    FILE *ibuf = NULL, *obuf, *abuf;
 516    enum okay rv = STOP;
 517    NYD_ENTER;
 518
 519    mbox = _mboxname;
 520    mcount = 0;
 521    if (!ok_blook(append)) {
 522       if ((obuf = Ftmp(&tempQuit, "makembox",
 523             OF_WRONLY | OF_HOLDSIGS | OF_REGISTER)) == NULL) {
 524          n_perr(_("temporary mail quit file"), 0);
 525          goto jleave;
 526       }
 527       if ((ibuf = Fopen(tempQuit, "r")) == NULL)
 528          n_perr(tempQuit, 0);
 529       Ftmp_release(&tempQuit);
 530       if (ibuf == NULL) {
 531          Fclose(obuf);
 532          goto jleave;
 533       }
 534
 535       if ((abuf = Zopen(mbox, "r")) != NULL) {
 536          while ((c = getc(abuf)) != EOF)
 537             putc(c, obuf);
 538          Fclose(abuf);
 539       }
 540       if (ferror(obuf)) {
 541          n_perr(_("temporary mail quit file"), 0);
 542          Fclose(ibuf);
 543          Fclose(obuf);
 544          goto jleave;
 545       }
 546       Fclose(obuf);
 547
 548       if ((c = open(mbox, (O_WRONLY | O_CREAT | n_O_NOFOLLOW | O_TRUNC), 0666)
 549             ) != -1)
 550          close(c);
 551       if ((obuf = Zopen(mbox, "r+")) == NULL) {
 552          n_perr(mbox, 0);
 553          Fclose(ibuf);
 554          goto jleave;
 555       }
 556    } else {
 557       if ((obuf = Zopen(mbox, "a")) == NULL) {
 558          n_perr(mbox, 0);
 559          goto jleave;
 560       }
 561    }
 562
 563    srelax_hold();
 564    for (mp = message; PTRCMP(mp, <, message + msgCount); ++mp) {
 565       if (mp->m_flag & MBOX) {
 566          ++mcount;
 567          if (sendmp(mp, obuf, saveignore, NULL, SEND_MBOX, NULL) < 0) {
 568             n_perr(mbox, 0);
 569             srelax_rele();
 570             if (ibuf != NULL)
 571                Fclose(ibuf);
 572             Fclose(obuf);
 573             goto jleave;
 574          }
 575          mp->m_flag |= MBOXED;
 576          srelax();
 577       }
 578    }
 579    srelax_rele();
 580
 581    /* Copy the user's old mbox contents back to the end of the stuff we just
 582     * saved.  If we are appending, this is unnecessary */
 583    if (!ok_blook(append)) {
 584       rewind(ibuf);
 585       c = getc(ibuf);
 586       while (c != EOF) {
 587          putc(c, obuf);
 588          if (ferror(obuf))
 589             break;
 590          c = getc(ibuf);
 591       }
 592       Fclose(ibuf);
 593       fflush(obuf);
 594    }
 595    ftrunc(obuf);
 596    if (ferror(obuf)) {
 597       n_perr(mbox, 0);
 598       Fclose(obuf);
 599       goto jleave;
 600    }
 601    if (Fclose(obuf) != 0) {
 602       n_perr(mbox, 0);
 603       goto jleave;
 604    }
 605    if (mcount == 1)
 606       printf(_("Saved 1 message in mbox\n"));
 607    else
 608       printf(_("Saved %d messages in mbox\n"), mcount);
 609    rv = OKAY;
 610 jleave:
 611    NYD_LEAVE;
 612    return rv;
 613 }
 614
 615 FL void
 616 save_mbox_for_possible_quitstuff(void) /* TODO try to get rid of that */
 617 {
 618    char const *cp;
 619    NYD_ENTER;
 620
 621    if ((cp = expand("&")) == NULL)
 622       cp = "";
 623    n_strscpy(_mboxname, cp, sizeof _mboxname);
 624    NYD_LEAVE;
 625 }
 626
 627 FL int
 628 savequitflags(void)
 629 {
 630    enum quitflags qf = 0;
 631    size_t i;
 632    NYD_ENTER;
 633
 634    for (i = 0; i < NELEM(_quitnames); ++i)
 635       if (n_var_oklook(_quitnames[i].okey) != NULL)
 636          qf |= _quitnames[i].flag;
 637    NYD_LEAVE;
 638    return qf;
 639 }
 640
 641 FL void
 642 restorequitflags(int qf)
 643 {
 644    size_t i;
 645    NYD_ENTER;
 646
 647    for (i = 0;  i < NELEM(_quitnames); ++i) {
 648       char *x = n_var_oklook(_quitnames[i].okey);
 649       if (qf & _quitnames[i].flag) {
 650          if (x == NULL)
 651             n_var_okset(_quitnames[i].okey, TRU1);
 652       } else if (x != NULL)
 653          n_var_okclear(_quitnames[i].okey);
 654    }
 655    NYD_LEAVE;
 656 }
 657
 658 /* s-it-mode */