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

   1 /* forw.c -- forward a message, or group of messages.
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include "h/mh.h"
   9 #include "sbr/seq_setprev.h"
  10 #include "sbr/seq_setcur.h"
  11 #include "sbr/seq_save.h"
  12 #include "sbr/showfile.h"
  13 #include "sbr/smatch.h"
  14 #include "sbr/refile.h"
  15 #include "sbr/cpydata.h"
  16 #include "sbr/cpydgst.h"
  17 #include "sbr/m_draft.h"
  18 #include "sbr/m_convert.h"
  19 #include "sbr/getfolder.h"
  20 #include "sbr/folder_read.h"
  21 #include "sbr/context_save.h"
  22 #include "sbr/context_replace.h"
  23 #include "sbr/context_find.h"
  24 #include "sbr/ambigsw.h"
  25 #include "sbr/pidstatus.h"
  26 #include "sbr/path.h"
  27 #include "sbr/print_version.h"
  28 #include "sbr/print_help.h"
  29 #include "sbr/arglist.h"
  30 #include "sbr/error.h"
  31 #include <fcntl.h>
  32 #include "h/tws.h"
  33 #include "h/done.h"
  34 #include "h/utils.h"
  35 #include "sbr/m_maildir.h"
  36 #include "forwsbr.h"
  37
  38
  39 #define IFORMAT "digest-issue-%s"
  40 #define VFORMAT "digest-volume-%s"
  41
  42 #define FORW_SWITCHES \
  43     X("annotate", 0, ANNOSW) \
  44     X("noannotate", 0, NANNOSW) \
  45     X("draftfolder +folder", 0, DFOLDSW) \
  46     X("draftmessage msg", 0, DMSGSW) \
  47     X("nodraftfolder", 0, NDFLDSW) \
  48     X("editor editor", 0, EDITRSW) \
  49     X("noedit", 0, NEDITSW) \
  50     X("filter filterfile", 0, FILTSW) \
  51     X("form formfile", 0, FORMSW) \
  52     X("format", 5, FRMTSW) \
  53     X("noformat", 7, NFRMTSW) \
  54     X("inplace", 0, INPLSW) \
  55     X("noinplace", 0, NINPLSW) \
  56     X("mime", 0, MIMESW) \
  57     X("nomime", 0, NMIMESW) \
  58     X("digest list", 0, DGSTSW) \
  59     X("issue number", 0, ISSUESW) \
  60     X("volume number", 0, VOLUMSW) \
  61     X("whatnowproc program", 0, WHATSW) \
  62     X("nowhatnowproc", 0, NWHATSW) \
  63     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  64     X("nodashstuffing", 0, NBITSTUFFSW) \
  65     X("version", 0, VERSIONSW) \
  66     X("help", 0, HELPSW) \
  67     X("file file", 4, FILESW) \
  68     X("build", 5, BILDSW)                     /* interface from mhe */ \
  69     X("from address", 0, FROMSW) \
  70     X("to address", 0, TOSW) \
  71     X("cc address", 0, CCSW) \
  72     X("subject text", 0, SUBJECTSW) \
  73     X("fcc mailbox", 0, FCCSW) \
  74     X("width columns", 0, WIDTHSW) \
  75
  76 #define X(sw, minchars, id) id,
  77 DEFINE_SWITCH_ENUM(FORW);
  78 #undef X
  79
  80 #define X(sw, minchars, id) { sw, minchars, id },
  81 DEFINE_SWITCH_ARRAY(FORW, switches);
  82 #undef X
  83
  84 #define DISPO_SWITCHES \
  85     X("quit", 0, NOSW) \
  86     X("replace", 0, YESW) \
  87     X("list", 0, LISTDSW) \
  88     X("refile +folder", 0, REFILSW) \
  89     X("new", 0, NEWSW) \
  90
  91 #define X(sw, minchars, id) id,
  92 DEFINE_SWITCH_ENUM(DISPO);
  93 #undef X
  94
  95 #define X(sw, minchars, id) { sw, minchars, id },
  96 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
  97 #undef X
  98
  99 static struct swit aqrl[] = {
 100     { "quit", 0, NOSW },
 101     { "replace", 0, YESW },
 102     { "list", 0, LISTDSW },
 103     { "refile +folder", 0, REFILSW },
 104     { NULL, 0, 0 }
 105 };
 106
 107 static char drft[BUFSIZ];
 108
 109 static char delim3[] =
 110     "\n------------------------------------------------------------\n\n";
 111 static char delim4[] = "\n------------------------------\n\n";
 112
 113
 114 static struct msgs *mp = NULL;          /* used a lot */
 115
 116
 117 /*
 118  * static prototypes
 119  */
 120 static void mhl_draft (int, char *, int, int, char *, char *, int);
 121 static void copy_draft (int, char *, char *, int, int, int);
 122 static void copy_mime_draft (int);
 123
 124
 125 int
 126 main (int argc, char **argv)
 127 {
 128     bool anot = false;
 129     bool inplace = true;
 130     bool mime = false;
 131     int issue = 0, volume = 0, dashstuff = 0;
 132     bool nedit = false;
 133     bool nwhat = false;
 134     int i, in;
 135     int out, isdf = 0, msgnum = 0;
 136     int outputlinelen = OUTPUTLINELEN;
 137     int dat[5];
 138     char *cp, *cwd, *maildir, *dfolder = NULL;
 139     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 140     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 141     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 142     char *form = NULL, buf[BUFSIZ];
 143     char **argp, **arguments;
 144     struct stat st;
 145     struct msgs_array msgs = { 0, 0, NULL };
 146     bool buildsw = false;
 147
 148     if (nmh_init(argv[0], true, true)) { return 1; }
 149
 150     arguments = getarguments (invo_name, argc, argv, 1);
 151     argp = arguments;
 152
 153     while ((cp = *argp++)) {
 154         if (*cp == '-') {
 155             switch (smatch (++cp, switches)) {
 156                 case AMBIGSW:
 157                     ambigsw (cp, switches);
 158                     done (1);
 159                 case UNKWNSW:
 160                     die("-%s unknown", cp);
 161
 162                 case HELPSW:
 163                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 164                         invo_name);
 165                     print_help (buf, switches, 1);
 166                     done (0);
 167                 case VERSIONSW:
 168                     print_version(invo_name);
 169                     done (0);
 170
 171                 case ANNOSW:
 172                     anot = true;
 173                     continue;
 174                 case NANNOSW:
 175                     anot = false;
 176                     continue;
 177
 178                 case EDITRSW:
 179                     if (!(ed = *argp++) || *ed == '-')
 180                         die("missing argument to %s", argp[-2]);
 181                     nedit = false;
 182                     continue;
 183                 case NEDITSW:
 184                     nedit = true;
 185                     continue;
 186
 187                 case WHATSW:
 188                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 189                         die("missing argument to %s", argp[-2]);
 190                     nwhat = false;
 191                     continue;
 192                 case BILDSW:
 193                     buildsw = true;
 194                     /* FALLTHRU */
 195                 case NWHATSW:
 196                     nwhat = true;
 197                     continue;
 198
 199                 case FILESW:
 200                     if (file)
 201                         die("only one file at a time!");
 202                     if (!(cp = *argp++) || *cp == '-')
 203                         die("missing argument to %s", argp[-2]);
 204                     file = path (cp, TFILE);
 205                     continue;
 206                 case FILTSW:
 207                     if (!(cp = *argp++) || *cp == '-')
 208                         die("missing argument to %s", argp[-2]);
 209                     filter = mh_xstrdup(etcpath(cp));
 210                     mime = false;
 211                     continue;
 212                 case FORMSW:
 213                     if (!(form = *argp++) || *form == '-')
 214                         die("missing argument to %s", argp[-2]);
 215                     continue;
 216
 217                 case FRMTSW:
 218                     filter = mh_xstrdup(etcpath(mhlforward));
 219                     continue;
 220                 case NFRMTSW:
 221                     filter = NULL;
 222                     continue;
 223
 224                 case INPLSW:
 225                     inplace = true;
 226                     continue;
 227                 case NINPLSW:
 228                     inplace = false;
 229                     continue;
 230
 231                 case MIMESW:
 232                     mime = true;
 233                     filter = NULL;
 234                     continue;
 235                 case NMIMESW:
 236                     mime = false;
 237                     continue;
 238
 239                 case DGSTSW:
 240                     if (!(cp = *argp++) || *cp == '-')
 241                         die("missing argument to %s", argp[-2]);
 242                     digest = mh_xstrdup(cp);
 243                     mime = false;
 244                     continue;
 245                 case ISSUESW:
 246                     if (!(cp = *argp++) || *cp == '-')
 247                         die("missing argument to %s", argp[-2]);
 248                     if ((issue = atoi (cp)) < 1)
 249                         die("bad argument %s %s", argp[-2], cp);
 250                     continue;
 251                 case VOLUMSW:
 252                     if (!(cp = *argp++) || *cp == '-')
 253                         die("missing argument to %s", argp[-2]);
 254                     if ((volume = atoi (cp)) < 1)
 255                         die("bad argument %s %s", argp[-2], cp);
 256                     continue;
 257
 258                 case DFOLDSW:
 259                     if (dfolder)
 260                         die("only one draft folder at a time!");
 261                     if (!(cp = *argp++) || *cp == '-')
 262                         die("missing argument to %s", argp[-2]);
 263                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 264                                     *cp != '@' ? TFOLDER : TSUBCWF);
 265                     continue;
 266                 case DMSGSW:
 267                     if (dmsg)
 268                         die("only one draft message at a time!");
 269                     if (!(dmsg = *argp++) || *dmsg == '-')
 270                         die("missing argument to %s", argp[-2]);
 271                     continue;
 272                 case NDFLDSW:
 273                     dfolder = NULL;
 274                     isdf = NOTOK;
 275                     continue;
 276
 277                 case BITSTUFFSW:
 278                     dashstuff = 1;      /* ternary logic */
 279                     continue;
 280                 case NBITSTUFFSW:
 281                     dashstuff = -1;     /* ternary logic */
 282                     continue;
 283
 284                 case FROMSW:
 285                     if (!(cp = *argp++) || *cp == '-')
 286                         die("missing argument to %s", argp[-2]);
 287                     from = addlist(from, cp);
 288                     continue;
 289                 case TOSW:
 290                     if (!(cp = *argp++) || *cp == '-')
 291                         die("missing argument to %s", argp[-2]);
 292                     to = addlist(to, cp);
 293                     continue;
 294                 case CCSW:
 295                     if (!(cp = *argp++) || *cp == '-')
 296                         die("missing argument to %s", argp[-2]);
 297                     cc = addlist(cc, cp);
 298                     continue;
 299                 case FCCSW:
 300                     if (!(cp = *argp++) || *cp == '-')
 301                         die("missing argument to %s", argp[-2]);
 302                     fcc = addlist(fcc, cp);
 303                     continue;
 304                 case SUBJECTSW:
 305                     if (!(cp = *argp++) || *cp == '-')
 306                         die("missing argument to %s", argp[-2]);
 307                     subject = mh_xstrdup(cp);
 308                     continue;
 309
 310                 case WIDTHSW:
 311                     if (!(cp = *argp++) || *cp == '-')
 312                         die("missing argument to %s", argp[-2]);
 313                     if ((outputlinelen = atoi(cp)) < 10)
 314                         die("impossible width %d", outputlinelen);
 315                     continue;
 316             }
 317         }
 318         if (*cp == '+' || *cp == '@') {
 319             if (folder)
 320                 die("only one folder at a time!");
 321             folder = pluspath (cp);
 322         } else {
 323             app_msgarg(&msgs, cp);
 324         }
 325     }
 326
 327     cwd = mh_xstrdup(pwd ());
 328
 329     if (!context_find ("path"))
 330         free (path ("./", TFOLDER));
 331     if (file && (msgs.size || folder))
 332         die("can't mix files and folders/msgs");
 333
 334 try_it_again:
 335
 336     strncpy (drft, buildsw ? m_maildir ("draft")
 337                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 338
 339     /* Check if a draft already exists */
 340     if (!buildsw && stat (drft, &st) != NOTOK) {
 341         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 342         for (i = LISTDSW; i != YESW;) {
 343             if (!(argp = read_switch_multiword ("\nDisposition? ",
 344                                                 isdf ? aqrnl : aqrl)))
 345                 done (1);
 346             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 347                 case NOSW:
 348                     done (0);
 349                 case NEWSW:
 350                     dmsg = NULL;
 351                     goto try_it_again;
 352                 case YESW:
 353                     break;
 354                 case LISTDSW:
 355                     showfile (++argp, drft);
 356                     break;
 357                 case REFILSW:
 358                     if (refile (++argp, drft) == 0)
 359                         i = YESW;
 360                     break;
 361                 default:
 362                     inform("say what?");
 363                     break;
 364             }
 365         }
 366     }
 367
 368     if (file) {
 369         /*
 370          * Forwarding a file.
 371          */
 372         anot = false;   /* don't want to annotate a file */
 373     } else {
 374         /*
 375          * Forwarding a message.
 376          */
 377         if (!msgs.size)
 378             app_msgarg(&msgs, "cur");
 379         if (!folder)
 380             folder = getfolder (1);
 381         maildir = m_maildir (folder);
 382
 383         if (chdir (maildir) == NOTOK)
 384             adios (maildir, "unable to change directory to");
 385
 386         /* read folder and create message structure */
 387         if (!(mp = folder_read (folder, 1)))
 388             die("unable to read folder %s", folder);
 389
 390         /* check for empty folder */
 391         if (mp->nummsg == 0)
 392             die("no messages in %s", folder);
 393
 394         /* parse all the message ranges/sequences and set SELECTED */
 395         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 396             if (!m_convert (mp, msgs.msgs[msgnum]))
 397                 done (1);
 398
 399         seq_setprev (mp);       /* set the previous sequence */
 400
 401         /*
 402          * Find the first message in our set and use it as the input
 403          * for the component scanner
 404          */
 405
 406         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 407             if (is_selected (mp, msgnum)) {
 408                 fwdmsg = mh_xstrdup(m_name(msgnum));
 409                 break;
 410             }
 411
 412         if (! fwdmsg)
 413             die("Unable to find input message");
 414     }
 415
 416     if (filter && access (filter, R_OK) == NOTOK)
 417         adios (filter, "unable to read");
 418
 419     /*
 420      * Open form (component) file.
 421      */
 422     if (digest) {
 423         if (issue == 0) {
 424             snprintf (buf, sizeof(buf), IFORMAT, digest);
 425             if (volume == 0
 426                     && (cp = context_find (buf))
 427                     && ((issue = atoi (cp)) < 0))
 428                 issue = 0;
 429             issue++;
 430         }
 431         if (volume == 0) {
 432             snprintf (buf, sizeof(buf), VFORMAT, digest);
 433             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 434                 volume = 1;
 435         }
 436         if (!form)
 437             form = digestcomps;
 438     } else {
 439         if (!form)
 440             form = forwcomps;
 441     }
 442
 443     dat[0] = digest ? issue : msgnum;
 444     dat[1] = volume;
 445     dat[2] = 0;
 446     dat[3] = outputlinelen;
 447     dat[4] = 0;
 448
 449
 450     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 451                      file ? file : fwdmsg);
 452
 453     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 454         adios (drft, "unable to create");
 455
 456     /*
 457      * copy the components into the draft
 458      */
 459     cpydata (in, out, form, drft);
 460     close (in);
 461
 462     if (file) {
 463         /* just copy the file into the draft */
 464         if ((in = open (file, O_RDONLY)) == NOTOK)
 465             adios (file, "unable to open");
 466         cpydata (in, out, file, drft);
 467         close (in);
 468         close (out);
 469     } else {
 470         /*
 471          * If filter file is defined, then format the
 472          * messages into the draft using mhlproc.
 473          */
 474         if (filter)
 475             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 476         else if (mime)
 477             copy_mime_draft (out);
 478         else
 479             copy_draft (out, digest, drft, volume, issue, dashstuff);
 480         close (out);
 481
 482         if (digest) {
 483             snprintf (buf, sizeof(buf), IFORMAT, digest);
 484             context_replace (buf, mh_xstrdup(m_str(issue)));
 485             snprintf (buf, sizeof(buf), VFORMAT, digest);
 486             context_replace (buf, mh_xstrdup(m_str(volume)));
 487         }
 488
 489         context_replace (pfolder, folder);      /* update current folder   */
 490         seq_setcur (mp, mp->lowsel);            /* update current message  */
 491         seq_save (mp);                          /* synchronize sequences   */
 492         context_save ();                        /* save the context file   */
 493     }
 494
 495     if (nwhat)
 496         done (0);
 497     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 498         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 499     done (1);
 500     return 1;
 501 }
 502
 503
 504 /*
 505  * Filter the messages you are forwarding, into the
 506  * draft calling the mhlproc, and reading its output
 507  * from a pipe.
 508  */
 509
 510 static void
 511 mhl_draft (int out, char *digest, int volume, int issue,
 512             char *file, char *filter, int dashstuff)
 513 {
 514     pid_t child_id;
 515     int msgnum, pd[2];
 516     char buf1[BUFSIZ];
 517     char buf2[BUFSIZ];
 518     char *program;
 519     struct msgs_array vec = { 0, 0, NULL };
 520
 521     if (pipe (pd) == NOTOK)
 522         adios ("pipe", "unable to create");
 523
 524     argsplit_msgarg(&vec, mhlproc, &program);
 525
 526     child_id = fork();
 527     switch (child_id) {
 528         case NOTOK:
 529             adios ("fork", "unable to");
 530
 531         case OK:
 532             close (pd[0]);
 533             dup2 (pd[1], 1);
 534             close (pd[1]);
 535
 536             app_msgarg(&vec, "-forwall");
 537             app_msgarg(&vec, "-form");
 538             app_msgarg(&vec, filter);
 539
 540             if (digest) {
 541                 app_msgarg(&vec, "-digest");
 542                 app_msgarg(&vec, digest);
 543                 app_msgarg(&vec, "-issue");
 544                 snprintf (buf1, sizeof(buf1), "%d", issue);
 545                 app_msgarg(&vec, buf1);
 546                 app_msgarg(&vec, "-volume");
 547                 snprintf (buf2, sizeof(buf2), "%d", volume);
 548                 app_msgarg(&vec, buf2);
 549             }
 550
 551             /*
 552              * Are we dashstuffing (quoting) the lines that begin
 553              * with `-'.  We use the mhl default (don't add any flag)
 554              * unless the user has specified a specific flag.
 555              */
 556             if (dashstuff > 0)
 557                 app_msgarg(&vec, "-dashstuffing");
 558             else if (dashstuff < 0)
 559                 app_msgarg(&vec, "-nodashstuffing");
 560
 561             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 562                 if (is_selected (mp, msgnum))
 563                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 564             }
 565
 566             app_msgarg(&vec, NULL);
 567
 568             execvp (program, vec.msgs);
 569             fprintf (stderr, "unable to exec ");
 570             perror (mhlproc);
 571             _exit(1);
 572
 573         default:
 574             close (pd[1]);
 575             cpydata (pd[0], out, vec.msgs[0], file);
 576             close (pd[0]);
 577             pidXwait(child_id, mhlproc);
 578             break;
 579     }
 580 }
 581
 582
 583 /*
 584  * Copy the messages into the draft.  The messages are
 585  * not filtered through the mhlproc.  Do dashstuffing if
 586  * necessary.
 587  */
 588
 589 static void
 590 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 591 {
 592     int fd,i, msgcnt, msgnum;
 593     int len, buflen;
 594     char *bp, *msgnam;
 595     char buffer[BUFSIZ];
 596
 597     msgcnt = 1;
 598     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 599         if (is_selected (mp, msgnum)) {
 600             if (digest) {
 601                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 602                         sizeof(buffer));
 603             } else {
 604                 /* Get buffer ready to go */
 605                 bp = buffer;
 606                 buflen = sizeof(buffer);
 607
 608                 strncpy (bp, "\n-------", buflen);
 609                 len = strlen (bp);
 610                 bp += len;
 611                 buflen -= len;
 612
 613                 if (msgnum == mp->lowsel) {
 614                     snprintf (bp, buflen, " Forwarded Message%s",
 615                         PLURALS(mp->numsel));
 616                 } else {
 617                     snprintf (bp, buflen, " Message %d", msgcnt);
 618                 }
 619                 len = strlen (bp);
 620                 bp += len;
 621                 buflen -= len;
 622
 623                 strncpy (bp, "\n\n", buflen);
 624             }
 625             if (write (out, buffer, strlen (buffer)) < 0) {
 626                 advise (drft, "write");
 627             }
 628
 629             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 630                 admonish (msgnam, "unable to read message");
 631                 continue;
 632             }
 633
 634             /*
 635              * Copy the message.  Add RFC934 quoting (dashstuffing)
 636              * unless given the -nodashstuffing flag.
 637              */
 638             if (dashstuff >= 0)
 639                 cpydgst (fd, out, msgnam, file);
 640             else
 641                 cpydata (fd, out, msgnam, file);
 642
 643             close (fd);
 644             msgcnt++;
 645         }
 646     }
 647
 648     if (digest) {
 649         strncpy (buffer, delim4, sizeof(buffer));
 650     } else {
 651         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 652                 PLURALS(mp->numsel));
 653     }
 654     if (write (out, buffer, strlen (buffer)) < 0) {
 655         advise (drft, "write");
 656     }
 657
 658     if (digest) {
 659         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 660                 digest, volume, issue);
 661         i = strlen (buffer);
 662         for (bp = buffer + i; i > 1; i--)
 663             *bp++ = '*';
 664         *bp++ = '\n';
 665         *bp = 0;
 666         if (write (out, buffer, strlen (buffer)) < 0) {
 667             advise (drft, "write");
 668         }
 669     }
 670 }
 671
 672
 673 /*
 674  * Create a mhn composition file for forwarding message.
 675  */
 676
 677 static void
 678 copy_mime_draft (int out)
 679 {
 680     int msgnum;
 681     char buffer[BUFSIZ];
 682
 683     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 684         PLURALS(mp->numsel), mp->foldpath);
 685     if (write (out, buffer, strlen (buffer)) < 0) {
 686         advise (drft, "write");
 687     }
 688     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 689         if (is_selected (mp, msgnum)) {
 690             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 691             if (write (out, buffer, strlen (buffer)) < 0) {
 692                 advise (drft, "write");
 693             }
 694         }
 695     if (write (out, "\n", 1) < 0) {
 696         advise (drft, "write newline");
 697     }
 698 }