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 "whatnowproc.h"
  10 #include "sbr/m_name.h"
  11 #include "sbr/m_gmprot.h"
  12 #include "sbr/getarguments.h"
  13 #include "sbr/read_switch_multiword.h"
  14 #include "sbr/seq_setprev.h"
  15 #include "sbr/seq_setcur.h"
  16 #include "sbr/seq_save.h"
  17 #include "sbr/showfile.h"
  18 #include "sbr/smatch.h"
  19 #include "sbr/refile.h"
  20 #include "sbr/cpydata.h"
  21 #include "sbr/cpydgst.h"
  22 #include "sbr/m_draft.h"
  23 #include "sbr/m_convert.h"
  24 #include "sbr/getfolder.h"
  25 #include "sbr/folder_read.h"
  26 #include "sbr/context_save.h"
  27 #include "sbr/context_replace.h"
  28 #include "sbr/context_find.h"
  29 #include "sbr/ambigsw.h"
  30 #include "sbr/pidstatus.h"
  31 #include "sbr/path.h"
  32 #include "sbr/print_version.h"
  33 #include "sbr/print_help.h"
  34 #include "sbr/arglist.h"
  35 #include "sbr/error.h"
  36 #include <fcntl.h>
  37 #include "h/tws.h"
  38 #include "h/done.h"
  39 #include "h/utils.h"
  40 #include "sbr/m_maildir.h"
  41 #include "forwsbr.h"
  42
  43
  44 #define IFORMAT "digest-issue-%s"
  45 #define VFORMAT "digest-volume-%s"
  46
  47 #define FORW_SWITCHES \
  48     X("annotate", 0, ANNOSW) \
  49     X("noannotate", 0, NANNOSW) \
  50     X("draftfolder +folder", 0, DFOLDSW) \
  51     X("draftmessage msg", 0, DMSGSW) \
  52     X("nodraftfolder", 0, NDFLDSW) \
  53     X("editor editor", 0, EDITRSW) \
  54     X("noedit", 0, NEDITSW) \
  55     X("filter filterfile", 0, FILTSW) \
  56     X("form formfile", 0, FORMSW) \
  57     X("format", 5, FRMTSW) \
  58     X("noformat", 7, NFRMTSW) \
  59     X("inplace", 0, INPLSW) \
  60     X("noinplace", 0, NINPLSW) \
  61     X("mime", 0, MIMESW) \
  62     X("nomime", 0, NMIMESW) \
  63     X("digest list", 0, DGSTSW) \
  64     X("issue number", 0, ISSUESW) \
  65     X("volume number", 0, VOLUMSW) \
  66     X("whatnowproc program", 0, WHATSW) \
  67     X("nowhatnowproc", 0, NWHATSW) \
  68     X("dashstuffing", 0, BITSTUFFSW)          /* interface to mhl */ \
  69     X("nodashstuffing", 0, NBITSTUFFSW) \
  70     X("version", 0, VERSIONSW) \
  71     X("help", 0, HELPSW) \
  72     X("file file", 4, FILESW) \
  73     X("build", 5, BILDSW)                     /* interface from mhe */ \
  74     X("from address", 0, FROMSW) \
  75     X("to address", 0, TOSW) \
  76     X("cc address", 0, CCSW) \
  77     X("subject text", 0, SUBJECTSW) \
  78     X("fcc mailbox", 0, FCCSW) \
  79     X("width columns", 0, WIDTHSW) \
  80
  81 #define X(sw, minchars, id) id,
  82 DEFINE_SWITCH_ENUM(FORW);
  83 #undef X
  84
  85 #define X(sw, minchars, id) { sw, minchars, id },
  86 DEFINE_SWITCH_ARRAY(FORW, switches);
  87 #undef X
  88
  89 #define DISPO_SWITCHES \
  90     X("quit", 0, NOSW) \
  91     X("replace", 0, YESW) \
  92     X("list", 0, LISTDSW) \
  93     X("refile +folder", 0, REFILSW) \
  94     X("new", 0, NEWSW) \
  95
  96 #define X(sw, minchars, id) id,
  97 DEFINE_SWITCH_ENUM(DISPO);
  98 #undef X
  99
 100 #define X(sw, minchars, id) { sw, minchars, id },
 101 DEFINE_SWITCH_ARRAY(DISPO, aqrnl);
 102 #undef X
 103
 104 static struct swit aqrl[] = {
 105     { "quit", 0, NOSW },
 106     { "replace", 0, YESW },
 107     { "list", 0, LISTDSW },
 108     { "refile +folder", 0, REFILSW },
 109     { NULL, 0, 0 }
 110 };
 111
 112 static char drft[BUFSIZ];
 113
 114 static char delim3[] =
 115     "\n------------------------------------------------------------\n\n";
 116 static char delim4[] = "\n------------------------------\n\n";
 117
 118
 119 static struct msgs *mp = NULL;          /* used a lot */
 120
 121
 122 /*
 123  * static prototypes
 124  */
 125 static void mhl_draft (int, char *, int, int, char *, char *, int);
 126 static void copy_draft (int, char *, char *, int, int, int);
 127 static void copy_mime_draft (int);
 128
 129
 130 int
 131 main (int argc, char **argv)
 132 {
 133     bool anot = false;
 134     bool inplace = true;
 135     bool mime = false;
 136     int issue = 0, volume = 0, dashstuff = 0;
 137     bool nedit = false;
 138     bool nwhat = false;
 139     int i, in;
 140     int out, isdf = 0, msgnum = 0;
 141     int outputlinelen = OUTPUTLINELEN;
 142     int dat[5];
 143     char *cp, *cwd, *maildir, *dfolder = NULL;
 144     char *dmsg = NULL, *digest = NULL, *ed = NULL;
 145     char *file = NULL, *filter = NULL, *folder = NULL, *fwdmsg = NULL;
 146     char *from = NULL, *to = NULL, *cc = NULL, *subject = NULL, *fcc = NULL;
 147     char *form = NULL, buf[BUFSIZ];
 148     char **argp, **arguments;
 149     struct stat st;
 150     struct msgs_array msgs = { 0, 0, NULL };
 151     bool buildsw = false;
 152
 153     if (nmh_init(argv[0], true, true)) { return 1; }
 154
 155     arguments = getarguments (invo_name, argc, argv, 1);
 156     argp = arguments;
 157
 158     while ((cp = *argp++)) {
 159         if (*cp == '-') {
 160             switch (smatch (++cp, switches)) {
 161                 case AMBIGSW:
 162                     ambigsw (cp, switches);
 163                     done (1);
 164                 case UNKWNSW:
 165                     die("-%s unknown", cp);
 166
 167                 case HELPSW:
 168                     snprintf (buf, sizeof(buf), "%s [+folder] [msgs] [switches]",
 169                         invo_name);
 170                     print_help (buf, switches, 1);
 171                     done (0);
 172                 case VERSIONSW:
 173                     print_version(invo_name);
 174                     done (0);
 175
 176                 case ANNOSW:
 177                     anot = true;
 178                     continue;
 179                 case NANNOSW:
 180                     anot = false;
 181                     continue;
 182
 183                 case EDITRSW:
 184                     if (!(ed = *argp++) || *ed == '-')
 185                         die("missing argument to %s", argp[-2]);
 186                     nedit = false;
 187                     continue;
 188                 case NEDITSW:
 189                     nedit = true;
 190                     continue;
 191
 192                 case WHATSW:
 193                     if (!(whatnowproc = *argp++) || *whatnowproc == '-')
 194                         die("missing argument to %s", argp[-2]);
 195                     nwhat = false;
 196                     continue;
 197                 case BILDSW:
 198                     buildsw = true;
 199                     /* FALLTHRU */
 200                 case NWHATSW:
 201                     nwhat = true;
 202                     continue;
 203
 204                 case FILESW:
 205                     if (file)
 206                         die("only one file at a time!");
 207                     if (!(cp = *argp++) || *cp == '-')
 208                         die("missing argument to %s", argp[-2]);
 209                     file = path (cp, TFILE);
 210                     continue;
 211                 case FILTSW:
 212                     if (!(cp = *argp++) || *cp == '-')
 213                         die("missing argument to %s", argp[-2]);
 214                     filter = mh_xstrdup(etcpath(cp));
 215                     mime = false;
 216                     continue;
 217                 case FORMSW:
 218                     if (!(form = *argp++) || *form == '-')
 219                         die("missing argument to %s", argp[-2]);
 220                     continue;
 221
 222                 case FRMTSW:
 223                     filter = mh_xstrdup(etcpath(mhlforward));
 224                     continue;
 225                 case NFRMTSW:
 226                     filter = NULL;
 227                     continue;
 228
 229                 case INPLSW:
 230                     inplace = true;
 231                     continue;
 232                 case NINPLSW:
 233                     inplace = false;
 234                     continue;
 235
 236                 case MIMESW:
 237                     mime = true;
 238                     filter = NULL;
 239                     continue;
 240                 case NMIMESW:
 241                     mime = false;
 242                     continue;
 243
 244                 case DGSTSW:
 245                     if (!(cp = *argp++) || *cp == '-')
 246                         die("missing argument to %s", argp[-2]);
 247                     digest = mh_xstrdup(cp);
 248                     mime = false;
 249                     continue;
 250                 case ISSUESW:
 251                     if (!(cp = *argp++) || *cp == '-')
 252                         die("missing argument to %s", argp[-2]);
 253                     if ((issue = atoi (cp)) < 1)
 254                         die("bad argument %s %s", argp[-2], cp);
 255                     continue;
 256                 case VOLUMSW:
 257                     if (!(cp = *argp++) || *cp == '-')
 258                         die("missing argument to %s", argp[-2]);
 259                     if ((volume = atoi (cp)) < 1)
 260                         die("bad argument %s %s", argp[-2], cp);
 261                     continue;
 262
 263                 case DFOLDSW:
 264                     if (dfolder)
 265                         die("only one draft folder at a time!");
 266                     if (!(cp = *argp++) || *cp == '-')
 267                         die("missing argument to %s", argp[-2]);
 268                     dfolder = path (*cp == '+' || *cp == '@' ? cp + 1 : cp,
 269                                     *cp != '@' ? TFOLDER : TSUBCWF);
 270                     continue;
 271                 case DMSGSW:
 272                     if (dmsg)
 273                         die("only one draft message at a time!");
 274                     if (!(dmsg = *argp++) || *dmsg == '-')
 275                         die("missing argument to %s", argp[-2]);
 276                     continue;
 277                 case NDFLDSW:
 278                     dfolder = NULL;
 279                     isdf = NOTOK;
 280                     continue;
 281
 282                 case BITSTUFFSW:
 283                     dashstuff = 1;      /* ternary logic */
 284                     continue;
 285                 case NBITSTUFFSW:
 286                     dashstuff = -1;     /* ternary logic */
 287                     continue;
 288
 289                 case FROMSW:
 290                     if (!(cp = *argp++) || *cp == '-')
 291                         die("missing argument to %s", argp[-2]);
 292                     from = addlist(from, cp);
 293                     continue;
 294                 case TOSW:
 295                     if (!(cp = *argp++) || *cp == '-')
 296                         die("missing argument to %s", argp[-2]);
 297                     to = addlist(to, cp);
 298                     continue;
 299                 case CCSW:
 300                     if (!(cp = *argp++) || *cp == '-')
 301                         die("missing argument to %s", argp[-2]);
 302                     cc = addlist(cc, cp);
 303                     continue;
 304                 case FCCSW:
 305                     if (!(cp = *argp++) || *cp == '-')
 306                         die("missing argument to %s", argp[-2]);
 307                     fcc = addlist(fcc, cp);
 308                     continue;
 309                 case SUBJECTSW:
 310                     if (!(cp = *argp++) || *cp == '-')
 311                         die("missing argument to %s", argp[-2]);
 312                     subject = mh_xstrdup(cp);
 313                     continue;
 314
 315                 case WIDTHSW:
 316                     if (!(cp = *argp++) || *cp == '-')
 317                         die("missing argument to %s", argp[-2]);
 318                     if ((outputlinelen = atoi(cp)) < 10)
 319                         die("impossible width %d", outputlinelen);
 320                     continue;
 321             }
 322         }
 323         if (*cp == '+' || *cp == '@') {
 324             if (folder)
 325                 die("only one folder at a time!");
 326             folder = pluspath (cp);
 327         } else {
 328             app_msgarg(&msgs, cp);
 329         }
 330     }
 331
 332     cwd = mh_xstrdup(pwd ());
 333
 334     if (!context_find ("path"))
 335         free (path ("./", TFOLDER));
 336     if (file && (msgs.size || folder))
 337         die("can't mix files and folders/msgs");
 338
 339 try_it_again:
 340
 341     strncpy (drft, buildsw ? m_maildir ("draft")
 342                           : m_draft (dfolder, NULL, NOUSE, &isdf), sizeof(drft));
 343
 344     /* Check if a draft already exists */
 345     if (!buildsw && stat (drft, &st) != NOTOK) {
 346         printf ("Draft \"%s\" exists (%ld bytes).", drft, (long) st.st_size);
 347         for (i = LISTDSW; i != YESW;) {
 348             if (!(argp = read_switch_multiword ("\nDisposition? ",
 349                                                 isdf ? aqrnl : aqrl)))
 350                 done (1);
 351             switch (i = smatch (*argp, isdf ? aqrnl : aqrl)) {
 352                 case NOSW:
 353                     done (0);
 354                 case NEWSW:
 355                     dmsg = NULL;
 356                     goto try_it_again;
 357                 case YESW:
 358                     break;
 359                 case LISTDSW:
 360                     showfile (++argp, drft);
 361                     break;
 362                 case REFILSW:
 363                     if (refile (++argp, drft) == 0)
 364                         i = YESW;
 365                     break;
 366                 default:
 367                     inform("say what?");
 368                     break;
 369             }
 370         }
 371     }
 372
 373     if (file) {
 374         /*
 375          * Forwarding a file.
 376          */
 377         anot = false;   /* don't want to annotate a file */
 378     } else {
 379         /*
 380          * Forwarding a message.
 381          */
 382         if (!msgs.size)
 383             app_msgarg(&msgs, "cur");
 384         if (!folder)
 385             folder = getfolder (1);
 386         maildir = m_maildir (folder);
 387
 388         if (chdir (maildir) == NOTOK)
 389             adios (maildir, "unable to change directory to");
 390
 391         /* read folder and create message structure */
 392         if (!(mp = folder_read (folder, 1)))
 393             die("unable to read folder %s", folder);
 394
 395         /* check for empty folder */
 396         if (mp->nummsg == 0)
 397             die("no messages in %s", folder);
 398
 399         /* parse all the message ranges/sequences and set SELECTED */
 400         for (msgnum = 0; msgnum < msgs.size; msgnum++)
 401             if (!m_convert (mp, msgs.msgs[msgnum]))
 402                 done (1);
 403
 404         seq_setprev (mp);       /* set the previous sequence */
 405
 406         /*
 407          * Find the first message in our set and use it as the input
 408          * for the component scanner
 409          */
 410
 411         for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 412             if (is_selected (mp, msgnum)) {
 413                 fwdmsg = mh_xstrdup(m_name(msgnum));
 414                 break;
 415             }
 416
 417         if (! fwdmsg)
 418             die("Unable to find input message");
 419     }
 420
 421     if (filter && access (filter, R_OK) == NOTOK)
 422         adios (filter, "unable to read");
 423
 424     /*
 425      * Open form (component) file.
 426      */
 427     if (digest) {
 428         if (issue == 0) {
 429             snprintf (buf, sizeof(buf), IFORMAT, digest);
 430             if (volume == 0
 431                     && (cp = context_find (buf))
 432                     && ((issue = atoi (cp)) < 0))
 433                 issue = 0;
 434             issue++;
 435         }
 436         if (volume == 0) {
 437             snprintf (buf, sizeof(buf), VFORMAT, digest);
 438             if ((cp = context_find (buf)) == NULL || (volume = atoi (cp)) <= 0)
 439                 volume = 1;
 440         }
 441         if (!form)
 442             form = digestcomps;
 443     } else {
 444         if (!form)
 445             form = forwcomps;
 446     }
 447
 448     dat[0] = digest ? issue : msgnum;
 449     dat[1] = volume;
 450     dat[2] = 0;
 451     dat[3] = outputlinelen;
 452     dat[4] = 0;
 453
 454
 455     in = build_form (form, digest, dat, from, to, cc, fcc, subject,
 456                      file ? file : fwdmsg);
 457
 458     if ((out = creat (drft, m_gmprot ())) == NOTOK)
 459         adios (drft, "unable to create");
 460
 461     /*
 462      * copy the components into the draft
 463      */
 464     cpydata (in, out, form, drft);
 465     close (in);
 466
 467     if (file) {
 468         /* just copy the file into the draft */
 469         if ((in = open (file, O_RDONLY)) == NOTOK)
 470             adios (file, "unable to open");
 471         cpydata (in, out, file, drft);
 472         close (in);
 473         close (out);
 474     } else {
 475         /*
 476          * If filter file is defined, then format the
 477          * messages into the draft using mhlproc.
 478          */
 479         if (filter)
 480             mhl_draft (out, digest, volume, issue, drft, filter, dashstuff);
 481         else if (mime)
 482             copy_mime_draft (out);
 483         else
 484             copy_draft (out, digest, drft, volume, issue, dashstuff);
 485         close (out);
 486
 487         if (digest) {
 488             snprintf (buf, sizeof(buf), IFORMAT, digest);
 489             context_replace (buf, mh_xstrdup(m_str(issue)));
 490             snprintf (buf, sizeof(buf), VFORMAT, digest);
 491             context_replace (buf, mh_xstrdup(m_str(volume)));
 492         }
 493
 494         context_replace (pfolder, folder);      /* update current folder   */
 495         seq_setcur (mp, mp->lowsel);            /* update current message  */
 496         seq_save (mp);                          /* synchronize sequences   */
 497         context_save ();                        /* save the context file   */
 498     }
 499
 500     if (nwhat)
 501         done (0);
 502     what_now (ed, nedit, NOUSE, drft, NULL, 0, mp,
 503         anot ? "Forwarded" : NULL, inplace, cwd, 0);
 504     done (1);
 505     return 1;
 506 }
 507
 508
 509 /*
 510  * Filter the messages you are forwarding, into the
 511  * draft calling the mhlproc, and reading its output
 512  * from a pipe.
 513  */
 514
 515 static void
 516 mhl_draft (int out, char *digest, int volume, int issue,
 517             char *file, char *filter, int dashstuff)
 518 {
 519     pid_t child_id;
 520     int msgnum, pd[2];
 521     char buf1[BUFSIZ];
 522     char buf2[BUFSIZ];
 523     char *program;
 524     struct msgs_array vec = { 0, 0, NULL };
 525
 526     if (pipe (pd) == NOTOK)
 527         adios ("pipe", "unable to create");
 528
 529     argsplit_msgarg(&vec, mhlproc, &program);
 530
 531     child_id = fork();
 532     switch (child_id) {
 533         case NOTOK:
 534             adios ("fork", "unable to");
 535
 536         case OK:
 537             close (pd[0]);
 538             dup2 (pd[1], 1);
 539             close (pd[1]);
 540
 541             app_msgarg(&vec, "-forwall");
 542             app_msgarg(&vec, "-form");
 543             app_msgarg(&vec, filter);
 544
 545             if (digest) {
 546                 app_msgarg(&vec, "-digest");
 547                 app_msgarg(&vec, digest);
 548                 app_msgarg(&vec, "-issue");
 549                 snprintf (buf1, sizeof(buf1), "%d", issue);
 550                 app_msgarg(&vec, buf1);
 551                 app_msgarg(&vec, "-volume");
 552                 snprintf (buf2, sizeof(buf2), "%d", volume);
 553                 app_msgarg(&vec, buf2);
 554             }
 555
 556             /*
 557              * Are we dashstuffing (quoting) the lines that begin
 558              * with `-'.  We use the mhl default (don't add any flag)
 559              * unless the user has specified a specific flag.
 560              */
 561             if (dashstuff > 0)
 562                 app_msgarg(&vec, "-dashstuffing");
 563             else if (dashstuff < 0)
 564                 app_msgarg(&vec, "-nodashstuffing");
 565
 566             for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 567                 if (is_selected (mp, msgnum))
 568                     app_msgarg(&vec, mh_xstrdup(m_name (msgnum)));
 569             }
 570
 571             app_msgarg(&vec, NULL);
 572
 573             execvp (program, vec.msgs);
 574             fprintf (stderr, "unable to exec ");
 575             perror (mhlproc);
 576             _exit(1);
 577
 578         default:
 579             close (pd[1]);
 580             cpydata (pd[0], out, vec.msgs[0], file);
 581             close (pd[0]);
 582             pidXwait(child_id, mhlproc);
 583             break;
 584     }
 585 }
 586
 587
 588 /*
 589  * Copy the messages into the draft.  The messages are
 590  * not filtered through the mhlproc.  Do dashstuffing if
 591  * necessary.
 592  */
 593
 594 static void
 595 copy_draft (int out, char *digest, char *file, int volume, int issue, int dashstuff)
 596 {
 597     int fd,i, msgcnt, msgnum;
 598     int len, buflen;
 599     char *bp, *msgnam;
 600     char buffer[BUFSIZ];
 601
 602     msgcnt = 1;
 603     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
 604         if (is_selected (mp, msgnum)) {
 605             if (digest) {
 606                 strncpy (buffer, msgnum == mp->lowsel ? delim3 : delim4,
 607                         sizeof(buffer));
 608             } else {
 609                 /* Get buffer ready to go */
 610                 bp = buffer;
 611                 buflen = sizeof(buffer);
 612
 613                 strncpy (bp, "\n-------", buflen);
 614                 len = strlen (bp);
 615                 bp += len;
 616                 buflen -= len;
 617
 618                 if (msgnum == mp->lowsel) {
 619                     snprintf (bp, buflen, " Forwarded Message%s",
 620                         PLURALS(mp->numsel));
 621                 } else {
 622                     snprintf (bp, buflen, " Message %d", msgcnt);
 623                 }
 624                 len = strlen (bp);
 625                 bp += len;
 626                 buflen -= len;
 627
 628                 strncpy (bp, "\n\n", buflen);
 629             }
 630             if (write (out, buffer, strlen (buffer)) < 0) {
 631                 advise (drft, "write");
 632             }
 633
 634             if ((fd = open (msgnam = m_name (msgnum), O_RDONLY)) == NOTOK) {
 635                 admonish (msgnam, "unable to read message");
 636                 continue;
 637             }
 638
 639             /*
 640              * Copy the message.  Add RFC934 quoting (dashstuffing)
 641              * unless given the -nodashstuffing flag.
 642              */
 643             if (dashstuff >= 0)
 644                 cpydgst (fd, out, msgnam, file);
 645             else
 646                 cpydata (fd, out, msgnam, file);
 647
 648             close (fd);
 649             msgcnt++;
 650         }
 651     }
 652
 653     if (digest) {
 654         strncpy (buffer, delim4, sizeof(buffer));
 655     } else {
 656         snprintf (buffer, sizeof(buffer), "\n------- End of Forwarded Message%s\n",
 657                 PLURALS(mp->numsel));
 658     }
 659     if (write (out, buffer, strlen (buffer)) < 0) {
 660         advise (drft, "write");
 661     }
 662
 663     if (digest) {
 664         snprintf (buffer, sizeof(buffer), "End of %s Digest [Volume %d Issue %d]\n",
 665                 digest, volume, issue);
 666         i = strlen (buffer);
 667         for (bp = buffer + i; i > 1; i--)
 668             *bp++ = '*';
 669         *bp++ = '\n';
 670         *bp = 0;
 671         if (write (out, buffer, strlen (buffer)) < 0) {
 672             advise (drft, "write");
 673         }
 674     }
 675 }
 676
 677
 678 /*
 679  * Create a mhn composition file for forwarding message.
 680  */
 681
 682 static void
 683 copy_mime_draft (int out)
 684 {
 685     int msgnum;
 686     char buffer[BUFSIZ];
 687
 688     snprintf (buffer, sizeof(buffer), "#forw [forwarded message%s] +%s",
 689         PLURALS(mp->numsel), mp->foldpath);
 690     if (write (out, buffer, strlen (buffer)) < 0) {
 691         advise (drft, "write");
 692     }
 693     for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++)
 694         if (is_selected (mp, msgnum)) {
 695             snprintf (buffer, sizeof(buffer), " %s", m_name (msgnum));
 696             if (write (out, buffer, strlen (buffer)) < 0) {
 697                 advise (drft, "write");
 698             }
 699         }
 700     if (write (out, "\n", 1) < 0) {
 701         advise (drft, "write newline");
 702     }
 703 }