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/m_gmprot.h"
  10 #include "sbr/getarguments.h"
  11 #include "sbr/read_switch_multiword.h"
  12 #include "sbr/seq_setprev.h"
  13 #include "sbr/seq_setcur.h"
  14 #include "sbr/seq_save.h"
  15 #include "sbr/showfile.h"
  16 #include "sbr/smatch.h"
  17 #include "sbr/refile.h"
  18 #include "sbr/cpydata.h"
  19 #include "sbr/cpydgst.h"
  20 #include "sbr/m_draft.h"
  21 #include "sbr/m_convert.h"
  22 #include "sbr/getfolder.h"
  23 #include "sbr/folder_read.h"
  24 #include "sbr/context_save.h"
  25 #include "sbr/context_replace.h"
  26 #include "sbr/context_find.h"
  27 #include "sbr/ambigsw.h"
  28 #include "sbr/pidstatus.h"
  29 #include "sbr/path.h"
  30 #include "sbr/print_version.h"
  31 #include "sbr/print_help.h"
  32 #include "sbr/arglist.h"
  33 #include "sbr/error.h"
  34 #include <fcntl.h>
  35 #include "h/tws.h"
  36 #include "h/done.h"
  37 #include "h/utils.h"
  38 #include "sbr/m_maildir.h"
  39 #include "forwsbr.h"
  40
  41
  42 #define IFORMAT "digest-issue-%s"
  43 #define VFORMAT "digest-volume-%s"
  44
  45 #define FORW_SWITCHES \
  46     X("annotate", 0, ANNOSW) \
  47     X("noannotate", 0, NANNOSW) \
  48     X("draftfolder +folder", 0, DFOLDSW) \
  49     X("draftmessage msg", 0, DMSGSW) \
  50     X("nodraftfolder", 0, NDFLDSW) \
  51     X("editor editor", 0, EDITRSW) \
  52     X("noedit", 0, NEDITSW) \
  53     X("filter filterfile", 0, FILTSW) \
  54     X("form formfile", 0, FORMSW) \
  55     X("format", 5, FRMTSW) \
  56     X("noformat", 7, NFRMTSW) \
  57     X("inplace", 0, INPLSW) \
  58     X("noinplace", 0, NINPLSW) \
  59     X("mime", 0, MIMESW) \
  60     X("nomime", 0, NMIMESW) \
  61     X("digest list", 0, DGSTSW) \
  62     X("issue number", 0, ISSUESW) \
  63     X("volume number", 0, VOLUMSW) \
  64     X("whatnowproc program", 0, WHATSW) \
  65     X("nowhatnowproc", 0, NWHATSW) \
  66     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  67     X("nodashstuffing", 0, NBITSTUFFSW) \
  68     X("version", 0, VERSIONSW) \
  69     X("help", 0, HELPSW) \
  70     X("file file", 4, FILESW) \
  71     X("build", 5, BILDSW)                     /* interface from mhe */ \
  72     X("from address", 0, FROMSW) \
  73     X("to address", 0, TOSW) \
  74     X("cc address", 0, CCSW) \
  75     X("subject text", 0, SUBJECTSW) \
  76     X("fcc mailbox", 0, FCCSW) \
  77     X("width columns", 0, WIDTHSW) \
  78
  79 #define X(sw, minchars, id) id,
  80 DEFINE_SWITCH_ENUM(FORW);
  81 #undef X
  82
  83 #define X(sw, minchars, id) { sw, minchars, id },
  84 DEFINE_SWITCH_ARRAY(FORW, switches);
  85 #undef X
  86
  87 #define DISPO_SWITCHES \
  88     X("quit", 0, NOSW) \
  89     X("replace", 0, YESW) \
  90     X("list", 0, LISTDSW) \
  91     X("refile +folder", 0, REFILSW) \
  92     X("new", 0, NEWSW) \
  93
  94 #define X(sw, minchars, id) id,
  95 DEFINE_SWITCH_ENUM(DISPO);
  96 #undef X
  97
  98 #define X(sw, minchars, id) { sw, minchars, id },
  99 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
 100 #undef X
 101
 102 static struct swit aqrl[] = {
 103     { "quit", 0, NOSW },
 104     { "replace", 0, YESW },
 105     { "list", 0, LISTDSW },
 106     { "refile +folder", 0, REFILSW },
 107     { NULL, 0, 0 }
 108 };
 109
 110 static char drft[BUFSIZ];
 111
 112 static char delim3[] =
 113     "\n------------------------------------------------------------\n\n";
 114 static char delim4[] = "\n------------------------------\n\n";
 115
 116
 117 static struct msgs *mp = NULL;          /* used a lot */
 118
 119
 120 /*
 121  * static prototypes
 122  */
 123 static void mhl_draft (int, char *, int, int, char *, char *, int);
 124 static void copy_draft (int, char *, char *, int, int, int);
 125 static void copy_mime_draft (int);
 126
 127
 128 int
 129 main (int argc, char **argv)
 130 {
 131     bool anot = false;
 132     bool inplace = true;
 133     bool mime = false;
 134     int issue = 0, volume = 0, dashstuff = 0;
 135     bool nedit = false;
 136     bool nwhat = false;
 137     int i, in;
 138     int out, isdf = 0, msgnum = 0;
 139     int outputlinelen = OUTPUTLINELEN;
 140     int dat[5];
 141     char *cp, *cwd, *maildir, *dfolder = NULL;
 142     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 143     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 144     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 145     char *form = NULL, buf[BUFSIZ];
 146     char **argp, **arguments;
 147     struct stat st;
 148     struct msgs_array msgs = { 0, 0, NULL };
 149     bool buildsw = false;
 150
 151     if (nmh_init(argv[0], true, true)) { return 1; }
 152
 153     arguments = getarguments (invo_name, argc, argv, 1);
 154     argp = arguments;
 155
 156     while ((cp = *argp++)) {
 157         if (*cp == '-') {
 158             switch (smatch (++cp, switches)) {
 159                 case AMBIGSW:
 160                     ambigsw (cp, switches);
 161                     done (1);
 162                 case UNKWNSW:
 163                     die("-%s unknown", cp);
 164
 165                 case HELPSW:
 166                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 167                         invo_name);
 168                     print_help (buf, switches, 1);
 169                     done (0);
 170                 case VERSIONSW:
 171                     print_version(invo_name);
 172                     done (0);
 173
 174                 case ANNOSW:
 175                     anot = true;
 176                     continue;
 177                 case NANNOSW:
 178                     anot = false;
 179                     continue;
 180
 181                 case EDITRSW:
 182                     if (!(ed = *argp++) || *ed == '-')
 183                         die("missing argument to %s", argp[-2]);
 184                     nedit = false;
 185                     continue;
 186                 case NEDITSW:
 187                     nedit = true;
 188                     continue;
 189
 190                 case WHATSW:
 191                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 192                         die("missing argument to %s", argp[-2]);
 193                     nwhat = false;
 194                     continue;
 195                 case BILDSW:
 196                     buildsw = true;
 197                     /* FALLTHRU */
 198                 case NWHATSW:
 199                     nwhat = true;
 200                     continue;
 201
 202                 case FILESW:
 203                     if (file)
 204                         die("only one file at a time!");
 205                     if (!(cp = *argp++) || *cp == '-')
 206                         die("missing argument to %s", argp[-2]);
 207                     file = path (cp, TFILE);
 208                     continue;
 209                 case FILTSW:
 210                     if (!(cp = *argp++) || *cp == '-')
 211                         die("missing argument to %s", argp[-2]);
 212                     filter = mh_xstrdup(etcpath(cp));
 213                     mime = false;
 214                     continue;
 215                 case FORMSW:
 216                     if (!(form = *argp++) || *form == '-')
 217                         die("missing argument to %s", argp[-2]);
 218                     continue;
 219
 220                 case FRMTSW:
 221                     filter = mh_xstrdup(etcpath(mhlforward));
 222                     continue;
 223                 case NFRMTSW:
 224                     filter = NULL;
 225                     continue;
 226
 227                 case INPLSW:
 228                     inplace = true;
 229                     continue;
 230                 case NINPLSW:
 231                     inplace = false;
 232                     continue;
 233
 234                 case MIMESW:
 235                     mime = true;
 236                     filter = NULL;
 237                     continue;
 238                 case NMIMESW:
 239                     mime = false;
 240                     continue;
 241
 242                 case DGSTSW:
 243                     if (!(cp = *argp++) || *cp == '-')
 244                         die("missing argument to %s", argp[-2]);
 245                     digest = mh_xstrdup(cp);
 246                     mime = false;
 247                     continue;
 248                 case ISSUESW:
 249                     if (!(cp = *argp++) || *cp == '-')
 250                         die("missing argument to %s", argp[-2]);
 251                     if ((issue = atoi (cp)) < 1)
 252                         die("bad argument %s %s", argp[-2], cp);
 253                     continue;
 254                 case VOLUMSW:
 255                     if (!(cp = *argp++) || *cp == '-')
 256                         die("missing argument to %s", argp[-2]);
 257                     if ((volume = atoi (cp)) < 1)
 258                         die("bad argument %s %s", argp[-2], cp);
 259                     continue;
 260
 261                 case DFOLDSW:
 262                     if (dfolder)
 263                         die("only one draft folder at a time!");
 264                     if (!(cp = *argp++) || *cp == '-')
 265                         die("missing argument to %s", argp[-2]);
 266                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 267                                     *cp != '@' ? TFOLDER : TSUBCWF);
 268                     continue;
 269                 case DMSGSW:
 270                     if (dmsg)
 271                         die("only one draft message at a time!");
 272                     if (!(dmsg = *argp++) || *dmsg == '-')
 273                         die("missing argument to %s", argp[-2]);
 274                     continue;
 275                 case NDFLDSW:
 276                     dfolder = NULL;
 277                     isdf = NOTOK;
 278                     continue;
 279
 280                 case BITSTUFFSW:
 281                     dashstuff = 1;      /* ternary logic */
 282                     continue;
 283                 case NBITSTUFFSW:
 284                     dashstuff = -1;     /* ternary logic */
 285                     continue;
 286
 287                 case FROMSW:
 288                     if (!(cp = *argp++) || *cp == '-')
 289                         die("missing argument to %s", argp[-2]);
 290                     from = addlist(from, cp);
 291                     continue;
 292                 case TOSW:
 293                     if (!(cp = *argp++) || *cp == '-')
 294                         die("missing argument to %s", argp[-2]);
 295                     to = addlist(to, cp);
 296                     continue;
 297                 case CCSW:
 298                     if (!(cp = *argp++) || *cp == '-')
 299                         die("missing argument to %s", argp[-2]);
 300                     cc = addlist(cc, cp);
 301                     continue;
 302                 case FCCSW:
 303                     if (!(cp = *argp++) || *cp == '-')
 304                         die("missing argument to %s", argp[-2]);
 305                     fcc = addlist(fcc, cp);
 306                     continue;
 307                 case SUBJECTSW:
 308                     if (!(cp = *argp++) || *cp == '-')
 309                         die("missing argument to %s", argp[-2]);
 310                     subject = mh_xstrdup(cp);
 311                     continue;
 312
 313                 case WIDTHSW:
 314                     if (!(cp = *argp++) || *cp == '-')
 315                         die("missing argument to %s", argp[-2]);
 316                     if ((outputlinelen = atoi(cp)) < 10)
 317                         die("impossible width %d", outputlinelen);
 318                     continue;
 319             }
 320         }
 321         if (*cp == '+' || *cp == '@') {
 322             if (folder)
 323                 die("only one folder at a time!");
 324             folder = pluspath (cp);
 325         } else {
 326             app_msgarg(&msgs, cp);
 327         }
 328     }
 329
 330     cwd = mh_xstrdup(pwd ());
 331
 332     if (!context_find ("path"))
 333         free (path ("./", TFOLDER));
 334     if (file && (msgs.size || folder))
 335         die("can't mix files and folders/msgs");
 336
 337 try_it_again:
 338
 339     strncpy (drft, buildsw ? m_maildir ("draft")
 340                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 341
 342     /* Check if a draft already exists */
 343     if (!buildsw && stat (drft, &st) != NOTOK) {
 344         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 345         for (i = LISTDSW; i != YESW;) {
 346             if (!(argp = read_switch_multiword ("\nDisposition? ",
 347                                                 isdf ? aqrnl : aqrl)))
 348                 done (1);
 349             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 350                 case NOSW:
 351                     done (0);
 352                 case NEWSW:
 353                     dmsg = NULL;
 354                     goto try_it_again;
 355                 case YESW:
 356                     break;
 357                 case LISTDSW:
 358                     showfile (++argp, drft);
 359                     break;
 360                 case REFILSW:
 361                     if (refile (++argp, drft) == 0)
 362                         i = YESW;
 363                     break;
 364                 default:
 365                     inform("say what?");
 366                     break;
 367             }
 368         }
 369     }
 370
 371     if (file) {
 372         /*
 373          * Forwarding a file.
 374          */
 375         anot = false;   /* don't want to annotate a file */
 376     } else {
 377         /*
 378          * Forwarding a message.
 379          */
 380         if (!msgs.size)
 381             app_msgarg(&msgs, "cur");
 382         if (!folder)
 383             folder = getfolder (1);
 384         maildir = m_maildir (folder);
 385
 386         if (chdir (maildir) == NOTOK)
 387             adios (maildir, "unable to change directory to");
 388
 389         /* read folder and create message structure */
 390         if (!(mp = folder_read (folder, 1)))
 391             die("unable to read folder %s", folder);
 392
 393         /* check for empty folder */
 394         if (mp->nummsg == 0)
 395             die("no messages in %s", folder);
 396
 397         /* parse all the message ranges/sequences and set SELECTED */
 398         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 399             if (!m_convert (mp, msgs.msgs[msgnum]))
 400                 done (1);
 401
 402         seq_setprev (mp);       /* set the previous sequence */
 403
 404         /*
 405          * Find the first message in our set and use it as the input
 406          * for the component scanner
 407          */
 408
 409         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 410             if (is_selected (mp, msgnum)) {
 411                 fwdmsg = mh_xstrdup(m_name(msgnum));
 412                 break;
 413             }
 414
 415         if (! fwdmsg)
 416             die("Unable to find input message");
 417     }
 418
 419     if (filter && access (filter, R_OK) == NOTOK)
 420         adios (filter, "unable to read");
 421
 422     /*
 423      * Open form (component) file.
 424      */
 425     if (digest) {
 426         if (issue == 0) {
 427             snprintf (buf, sizeof(buf), IFORMAT, digest);
 428             if (volume == 0
 429                     && (cp = context_find (buf))
 430                     && ((issue = atoi (cp)) < 0))
 431                 issue = 0;
 432             issue++;
 433         }
 434         if (volume == 0) {
 435             snprintf (buf, sizeof(buf), VFORMAT, digest);
 436             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 437                 volume = 1;
 438         }
 439         if (!form)
 440             form = digestcomps;
 441     } else {
 442         if (!form)
 443             form = forwcomps;
 444     }
 445
 446     dat[0] = digest ? issue : msgnum;
 447     dat[1] = volume;
 448     dat[2] = 0;
 449     dat[3] = outputlinelen;
 450     dat[4] = 0;
 451
 452
 453     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 454                      file ? file : fwdmsg);
 455
 456     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 457         adios (drft, "unable to create");
 458
 459     /*
 460      * copy the components into the draft
 461      */
 462     cpydata (in, out, form, drft);
 463     close (in);
 464
 465     if (file) {
 466         /* just copy the file into the draft */
 467         if ((in = open (file, O_RDONLY)) == NOTOK)
 468             adios (file, "unable to open");
 469         cpydata (in, out, file, drft);
 470         close (in);
 471         close (out);
 472     } else {
 473         /*
 474          * If filter file is defined, then format the
 475          * messages into the draft using mhlproc.
 476          */
 477         if (filter)
 478             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 479         else if (mime)
 480             copy_mime_draft (out);
 481         else
 482             copy_draft (out, digest, drft, volume, issue, dashstuff);
 483         close (out);
 484
 485         if (digest) {
 486             snprintf (buf, sizeof(buf), IFORMAT, digest);
 487             context_replace (buf, mh_xstrdup(m_str(issue)));
 488             snprintf (buf, sizeof(buf), VFORMAT, digest);
 489             context_replace (buf, mh_xstrdup(m_str(volume)));
 490         }
 491
 492         context_replace (pfolder, folder);      /* update current folder   */
 493         seq_setcur (mp, mp->lowsel);            /* update current message  */
 494         seq_save (mp);                          /* synchronize sequences   */
 495         context_save ();                        /* save the context file   */
 496     }
 497
 498     if (nwhat)
 499         done (0);
 500     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 501         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 502     done (1);
 503     return 1;
 504 }
 505
 506
 507 /*
 508  * Filter the messages you are forwarding, into the
 509  * draft calling the mhlproc, and reading its output
 510  * from a pipe.
 511  */
 512
 513 static void
 514 mhl_draft (int out, char *digest, int volume, int issue,
 515             char *file, char *filter, int dashstuff)
 516 {
 517     pid_t child_id;
 518     int msgnum, pd[2];
 519     char buf1[BUFSIZ];
 520     char buf2[BUFSIZ];
 521     char *program;
 522     struct msgs_array vec = { 0, 0, NULL };
 523
 524     if (pipe (pd) == NOTOK)
 525         adios ("pipe", "unable to create");
 526
 527     argsplit_msgarg(&vec, mhlproc, &program);
 528
 529     child_id = fork();
 530     switch (child_id) {
 531         case NOTOK:
 532             adios ("fork", "unable to");
 533
 534         case OK:
 535             close (pd[0]);
 536             dup2 (pd[1], 1);
 537             close (pd[1]);
 538
 539             app_msgarg(&vec, "-forwall");
 540             app_msgarg(&vec, "-form");
 541             app_msgarg(&vec, filter);
 542
 543             if (digest) {
 544                 app_msgarg(&vec, "-digest");
 545                 app_msgarg(&vec, digest);
 546                 app_msgarg(&vec, "-issue");
 547                 snprintf (buf1, sizeof(buf1), "%d", issue);
 548                 app_msgarg(&vec, buf1);
 549                 app_msgarg(&vec, "-volume");
 550                 snprintf (buf2, sizeof(buf2), "%d", volume);
 551                 app_msgarg(&vec, buf2);
 552             }
 553
 554             /*
 555              * Are we dashstuffing (quoting) the lines that begin
 556              * with `-'.  We use the mhl default (don't add any flag)
 557              * unless the user has specified a specific flag.
 558              */
 559             if (dashstuff > 0)
 560                 app_msgarg(&vec, "-dashstuffing");
 561             else if (dashstuff < 0)
 562                 app_msgarg(&vec, "-nodashstuffing");
 563
 564             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 565                 if (is_selected (mp, msgnum))
 566                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 567             }
 568
 569             app_msgarg(&vec, NULL);
 570
 571             execvp (program, vec.msgs);
 572             fprintf (stderr, "unable to exec ");
 573             perror (mhlproc);
 574             _exit(1);
 575
 576         default:
 577             close (pd[1]);
 578             cpydata (pd[0], out, vec.msgs[0], file);
 579             close (pd[0]);
 580             pidXwait(child_id, mhlproc);
 581             break;
 582     }
 583 }
 584
 585
 586 /*
 587  * Copy the messages into the draft.  The messages are
 588  * not filtered through the mhlproc.  Do dashstuffing if
 589  * necessary.
 590  */
 591
 592 static void
 593 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 594 {
 595     int fd,i, msgcnt, msgnum;
 596     int len, buflen;
 597     char *bp, *msgnam;
 598     char buffer[BUFSIZ];
 599
 600     msgcnt = 1;
 601     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 602         if (is_selected (mp, msgnum)) {
 603             if (digest) {
 604                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 605                         sizeof(buffer));
 606             } else {
 607                 /* Get buffer ready to go */
 608                 bp = buffer;
 609                 buflen = sizeof(buffer);
 610
 611                 strncpy (bp, "\n-------", buflen);
 612                 len = strlen (bp);
 613                 bp += len;
 614                 buflen -= len;
 615
 616                 if (msgnum == mp->lowsel) {
 617                     snprintf (bp, buflen, " Forwarded Message%s",
 618                         PLURALS(mp->numsel));
 619                 } else {
 620                     snprintf (bp, buflen, " Message %d", msgcnt);
 621                 }
 622                 len = strlen (bp);
 623                 bp += len;
 624                 buflen -= len;
 625
 626                 strncpy (bp, "\n\n", buflen);
 627             }
 628             if (write (out, buffer, strlen (buffer)) < 0) {
 629                 advise (drft, "write");
 630             }
 631
 632             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 633                 admonish (msgnam, "unable to read message");
 634                 continue;
 635             }
 636
 637             /*
 638              * Copy the message.  Add RFC934 quoting (dashstuffing)
 639              * unless given the -nodashstuffing flag.
 640              */
 641             if (dashstuff >= 0)
 642                 cpydgst (fd, out, msgnam, file);
 643             else
 644                 cpydata (fd, out, msgnam, file);
 645
 646             close (fd);
 647             msgcnt++;
 648         }
 649     }
 650
 651     if (digest) {
 652         strncpy (buffer, delim4, sizeof(buffer));
 653     } else {
 654         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 655                 PLURALS(mp->numsel));
 656     }
 657     if (write (out, buffer, strlen (buffer)) < 0) {
 658         advise (drft, "write");
 659     }
 660
 661     if (digest) {
 662         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 663                 digest, volume, issue);
 664         i = strlen (buffer);
 665         for (bp = buffer + i; i > 1; i--)
 666             *bp++ = '*';
 667         *bp++ = '\n';
 668         *bp = 0;
 669         if (write (out, buffer, strlen (buffer)) < 0) {
 670             advise (drft, "write");
 671         }
 672     }
 673 }
 674
 675
 676 /*
 677  * Create a mhn composition file for forwarding message.
 678  */
 679
 680 static void
 681 copy_mime_draft (int out)
 682 {
 683     int msgnum;
 684     char buffer[BUFSIZ];
 685
 686     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 687         PLURALS(mp->numsel), mp->foldpath);
 688     if (write (out, buffer, strlen (buffer)) < 0) {
 689         advise (drft, "write");
 690     }
 691     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 692         if (is_selected (mp, msgnum)) {
 693             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 694             if (write (out, buffer, strlen (buffer)) < 0) {
 695                 advise (drft, "write");
 696             }
 697         }
 698     if (write (out, "\n", 1) < 0) {
 699         advise (drft, "write newline");
 700     }
 701 }