cmd-resend.c

   1 /*@ S-nail - a mail user agent derived from Berkeley Mail.
   2  *@ All sorts of `reply', `resend', `forward', and similar user commands.
   3  *
   4  * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
   5  * Copyright (c) 2012 - 2018 Steffen (Daode) Nurpmeso <steffen@sdaoden.eu>.
   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 cmd_resend
  37
  38 #ifndef HAVE_AMALGAMATION
  39 # include "nail.h"
  40 #endif
  41
  42 /* Modify subject we reply to to begin with Re: if it does not already */
  43 static char *a_crese_reedit(char const *subj);
  44
  45 /* Fetch these headers, as appropriate */
  46 static struct name *a_crese_reply_to(struct message *mp);
  47 static struct name *a_crese_mail_followup_to(struct message *mp);
  48
  49 /* We honoured Reply-To: and/or Mail-Followup-To:, but *recipients-in-cc* is
  50  * set so try to keep "secondary" addressees in Cc:, if possible, */
  51 static void a_crese_polite_rt_mft_move(struct message *mp, struct header *hp,
  52                      struct name *np);
  53
  54 /* References and charset, as appropriate */
  55 static void a_crese_make_ref_and_cs(struct message *mp, struct header *head);
  56
  57 /* `reply' and `Lreply' workhorse */
  58 static int a_crese_list_reply(int *msgvec, enum header_flags hf);
  59
  60 /* Get PTF to implementation of command c (i.e., take care for *flipr*) */
  61 static int (*a_crese_reply_or_Reply(char c))(int *, bool_t);
  62
  63 /* Reply to a single message.  Extract each name from the message header and
  64  * send them off to mail1() */
  65 static int a_crese_reply(int *msgvec, bool_t recipient_record);
  66
  67 /* Reply to a series of messages by simply mailing to the senders and not
  68  * messing around with the To: and Cc: lists as in normal reply */
  69 static int a_crese_Reply(int *msgvec, bool_t recipient_record);
  70
  71 /* Forward a message to a new recipient, in the sense of RFC 2822 */
  72 static int a_crese_fwd(void *vp, bool_t recipient_record);
  73
  74 /* Modify the subject we are replying to to begin with Fwd: */
  75 static char *a_crese__fwdedit(char *subj);
  76
  77 /* Do the real work of resending */
  78 static int a_crese_resend1(void *v, bool_t add_resent);
  79
  80 static char *
  81 a_crese_reedit(char const *subj){
  82    char *newsubj;
  83    NYD2_ENTER;
  84
  85    newsubj = NULL;
  86
  87    if(subj != NULL && *subj != '\0'){
  88       struct str in, out;
  89       size_t i;
  90       char const *cp;
  91
  92       in.l = strlen(in.s = n_UNCONST(subj));
  93       mime_fromhdr(&in, &out, TD_ISPR | TD_ICONV);
  94
  95       i = strlen(cp = subject_re_trim(out.s)) +1;
  96       /* RFC mandates english "Re: " */
  97       newsubj = n_autorec_alloc(sizeof("Re: ") -1 + i);
  98       memcpy(newsubj, "Re: ", sizeof("Re: ") -1);
  99       memcpy(&newsubj[sizeof("Re: ") -1], cp, i);
 100
 101       n_free(out.s);
 102    }
 103    NYD2_LEAVE;
 104    return newsubj;
 105 }
 106
 107 static struct name *
 108 a_crese_reply_to(struct message *mp){
 109    char const *cp, *cp2;
 110    struct name *rt, *np;
 111    enum gfield gf;
 112    NYD2_ENTER;
 113
 114    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 115    rt = NULL;
 116
 117    if((cp = ok_vlook(reply_to_honour)) != NULL &&
 118          (cp2 = hfield1("reply-to", mp)) != NULL &&
 119          (rt = checkaddrs(lextract(cp2, GTO | gf), EACM_STRICT, NULL)) != NULL){
 120       char *sp;
 121       size_t l;
 122       char const *tr;
 123
 124       if((n_psonce & n_PSO_INTERACTIVE) && !(n_pstate & n_PS_ROBOT)){
 125          fprintf(n_stdout, _("Reply-To: header contains:"));
 126          for(np = rt; np != NULL; np = np->n_flink)
 127             fprintf(n_stdout, " %s", np->n_name);
 128          putc('\n', n_stdout);
 129       }
 130
 131       tr = _("Reply-To %s%s");
 132       l = strlen(tr) + strlen(rt->n_name) + 3 +1;
 133       sp = n_lofi_alloc(l);
 134
 135       snprintf(sp, l, tr, rt->n_name, (rt->n_flink != NULL ? "..." : n_empty));
 136       if(n_quadify(cp, UIZ_MAX, sp, TRU1) <= FAL0)
 137          rt = NULL;
 138
 139       n_lofi_free(sp);
 140    }
 141    NYD2_LEAVE;
 142    return rt;
 143 }
 144
 145 static struct name *
 146 a_crese_mail_followup_to(struct message *mp){
 147    char const *cp, *cp2;
 148    struct name *mft, *np;
 149    enum gfield gf;
 150    NYD2_ENTER;
 151
 152    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 153    mft = NULL;
 154
 155    if((cp = ok_vlook(followup_to_honour)) != NULL &&
 156          (cp2 = hfield1("mail-followup-to", mp)) != NULL &&
 157          (mft = checkaddrs(lextract(cp2, GTO | gf), EACM_STRICT,NULL)) != NULL){
 158       char *sp;
 159       size_t l;
 160       char const *tr;
 161
 162       if((n_psonce & n_PSO_INTERACTIVE) && !(n_pstate & n_PS_ROBOT)){
 163          fprintf(n_stdout, _("Mail-Followup-To: header contains:"));
 164          for(np = mft; np != NULL; np = np->n_flink)
 165             fprintf(n_stdout, " %s", np->n_name);
 166          putc('\n', n_stdout);
 167       }
 168
 169       tr = _("Followup-To %s%s");
 170       l = strlen(tr) + strlen(mft->n_name) + 3 +1;
 171       sp = n_lofi_alloc(l);
 172
 173       snprintf(sp, l, tr, mft->n_name,
 174          (mft->n_flink != NULL ? "..." : n_empty));
 175       if(n_quadify(cp, UIZ_MAX, sp, TRU1) <= FAL0)
 176          mft = NULL;
 177
 178       n_lofi_free(sp);
 179    }
 180    NYD2_LEAVE;
 181    return mft;
 182 }
 183
 184 static void
 185 a_crese_polite_rt_mft_move(struct message *mp, struct header *hp,
 186       struct name *np){
 187    bool_t once;
 188    NYD2_ENTER;
 189    n_UNUSED(mp);
 190
 191    if(np == hp->h_to)
 192       hp->h_to = NULL;
 193    if(np == hp->h_cc)
 194       hp->h_cc = NULL;
 195
 196    /* We may find that in the end To: is empty but Cc: is not, in which case we
 197     * upgrade Cc: to To:, and jump back and redo the thing slightly different */
 198    once = FAL0;
 199 jredo:
 200    while(np != NULL){
 201       enum gfield gf;
 202       struct name *nnp, **xpp, *xp;
 203
 204       nnp = np;
 205       np = np->n_flink;
 206
 207       if(once){
 208          gf = GTO;
 209          xpp = &hp->h_to;
 210       }else{
 211          gf = GCC;
 212          xpp = &hp->h_cc;
 213       }
 214
 215       /* Try primary, then secondary */
 216       for(xp = hp->h_mailx_orig_to; xp != NULL; xp = xp->n_flink)
 217          if(!asccasecmp(xp->n_name, nnp->n_name))
 218             goto jlink;
 219
 220       if(once){
 221          gf = GCC;
 222          xpp = &hp->h_cc;
 223       }
 224
 225       for(xp = hp->h_mailx_orig_cc; xp != NULL; xp = xp->n_flink)
 226          if(!asccasecmp(xp->n_name, nnp->n_name))
 227             goto jlink;
 228
 229       /* If this receiver came in only via R-T: or M-F-T:, place her/him/it in
 230        * To: due to lack of a better place */
 231       gf = GTO;
 232       xpp = &hp->h_to;
 233 jlink:
 234       /* Link it at the end to not loose original sort order */
 235       if((xp = *xpp) != NULL)
 236          while(xp->n_flink != NULL)
 237             xp = xp->n_flink;
 238
 239       if((nnp->n_blink = xp) != NULL)
 240          xp->n_flink = nnp;
 241       else
 242          *xpp = nnp;
 243       nnp->n_flink = NULL;
 244       nnp->n_type = (nnp->n_type & ~GMASK) | gf;
 245    }
 246
 247    /* If afterwards only Cc: data remains, upgrade all of it to To: */
 248    if(hp->h_to == NULL){
 249       np = hp->h_cc;
 250       hp->h_cc = NULL;
 251       if(!once){
 252          hp->h_to = NULL;
 253          once = TRU1;
 254          goto jredo;
 255       }else
 256          for(hp->h_to = np; np != NULL; np = np->n_flink)
 257             np->n_type = (np->n_type & ~GMASK) | GTO;
 258    }
 259    NYD2_LEAVE;
 260 }
 261
 262 static void
 263 a_crese_make_ref_and_cs(struct message *mp, struct header *head) /* TODO ASAP */
 264 {
 265    char const *ccp;
 266    char *oldref, *oldmsgid, *newref;
 267    size_t oldreflen = 0, oldmsgidlen = 0, reflen;
 268    unsigned i;
 269    struct name *n;
 270    NYD2_ENTER;
 271
 272    oldref = hfield1("references", mp);
 273    oldmsgid = hfield1("message-id", mp);
 274    if (oldmsgid == NULL || *oldmsgid == '\0') {
 275       head->h_ref = NULL;
 276       goto jleave;
 277    }
 278
 279    reflen = 1;
 280    if (oldref) {
 281       oldreflen = strlen(oldref);
 282       reflen += oldreflen + 2;
 283    }
 284    if (oldmsgid) {
 285       oldmsgidlen = strlen(oldmsgid);
 286       reflen += oldmsgidlen;
 287    }
 288
 289    newref = n_alloc(reflen);
 290    if (oldref != NULL) {
 291       memcpy(newref, oldref, oldreflen +1);
 292       if (oldmsgid != NULL) {
 293          newref[oldreflen++] = ',';
 294          newref[oldreflen++] = ' ';
 295          memcpy(newref + oldreflen, oldmsgid, oldmsgidlen +1);
 296       }
 297    } else if (oldmsgid)
 298       memcpy(newref, oldmsgid, oldmsgidlen +1);
 299    n = extract(newref, GREF);
 300    n_free(newref);
 301
 302    /* Limit number of references TODO better on parser side */
 303    while (n->n_flink != NULL)
 304       n = n->n_flink;
 305    for (i = 1; i <= REFERENCES_MAX; ++i) {
 306       if (n->n_blink != NULL)
 307          n = n->n_blink;
 308       else
 309          break;
 310    }
 311    n->n_blink = NULL;
 312    head->h_ref = n;
 313    if (ok_blook(reply_in_same_charset) &&
 314          (ccp = hfield1("content-type", mp)) != NULL){
 315       if((head->h_charset = ccp = mime_param_get("charset", ccp)) != NULL){
 316          if((ccp = n_iconv_normalize_name(ccp)) != NULL)
 317             ccp = n_charsetalias_expand(ccp);
 318          head->h_charset = ccp;
 319       }
 320    }
 321 jleave:
 322    NYD2_LEAVE;
 323 }
 324
 325 static int
 326 a_crese_list_reply(int *msgvec, enum header_flags hf){
 327    struct header head;
 328    struct message *mp;
 329    char const *cp, *cp2;
 330    enum gfield gf;
 331    struct name *rt, *mft, *np;
 332    NYD2_ENTER;
 333
 334    n_pstate_err_no = n_ERR_NONE;
 335
 336    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 337
 338 jwork_msg:
 339    n_autorec_relax_create();
 340    mp = &message[*msgvec - 1];
 341    touch(mp);
 342    setdot(mp);
 343
 344    memset(&head, 0, sizeof head);
 345    head.h_flags = hf;
 346    head.h_subject = a_crese_reedit(hfield1("subject", mp));
 347    head.h_mailx_command = (hf & HF_LIST_REPLY) ? "Lreply" : "reply";
 348    head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 349    head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 350    head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 351    head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 352
 353    /* First of all check for Reply-To: then Mail-Followup-To:, because these,
 354     * if honoured, take precedence over anything else.  We will join the
 355     * resulting list together if so desired.
 356     * So if we shall honour R-T: or M-F-T:, then these are our receivers! */
 357    rt = a_crese_reply_to(mp);
 358    mft = a_crese_mail_followup_to(mp);
 359
 360    if(rt != NULL || mft != NULL){
 361       np = cat(rt, mft);
 362       if(mft != NULL)
 363          head.h_mft = namelist_dup(np, GTO | gf); /* xxx GTO: no "clone"! */
 364
 365       /* Optionally do not propagate a receiver that originally was in
 366        * secondary Cc: to the primary To: list */
 367       if(ok_blook(recipients_in_cc)){
 368          a_crese_polite_rt_mft_move(mp, &head, np);
 369
 370          head.h_mailx_raw_cc = namelist_dup(head.h_cc, GCC | gf);
 371          head.h_cc = n_alternates_remove(head.h_cc, FAL0);
 372       }else
 373          head.h_to = np;
 374
 375       head.h_mailx_raw_to = namelist_dup(head.h_to, GTO | gf);
 376       head.h_to = n_alternates_remove(head.h_to, FAL0);
 377 #ifdef HAVE_DEVEL
 378       for(np = head.h_to; np != NULL; np = np->n_flink)
 379          assert((np->n_type & GMASK) == GTO);
 380       for(np = head.h_cc; np != NULL; np = np->n_flink)
 381          assert((np->n_type & GMASK) == GCC);
 382 #endif
 383       goto jrecipients_done;
 384    }
 385
 386    /* Otherwise do the normal From: / To: / Cc: dance */
 387
 388    cp2 = n_header_senderfield_of(mp);
 389
 390    /* Cc: */
 391    np = NULL;
 392    if(ok_blook(recipients_in_cc) && (cp = hfield1("to", mp)) != NULL)
 393       np = lextract(cp, GCC | gf);
 394    if((cp = hfield1("cc", mp)) != NULL){
 395       struct name *x;
 396
 397       if((x = lextract(cp, GCC | gf)) != NULL)
 398          np = cat(np, x);
 399    }
 400    if(np != NULL){
 401       head.h_mailx_raw_cc = namelist_dup(np, GCC | gf);
 402       head.h_cc = n_alternates_remove(np, FAL0);
 403    }
 404
 405    /* To: */
 406    np = NULL;
 407    if(cp2 != NULL)
 408       np = lextract(cp2, GTO | gf);
 409    if(!ok_blook(recipients_in_cc) && (cp = hfield1("to", mp)) != NULL){
 410       struct name *x;
 411
 412       if((x = lextract(cp, GTO | gf)) != NULL)
 413          np = cat(np, x);
 414    }
 415    /* Delete my name from reply list, and with it, all my alternate names */
 416    if(np != NULL){
 417       head.h_mailx_raw_to = namelist_dup(np, GTO | gf);
 418       np = n_alternates_remove(np, FAL0);
 419       /* The user may have send this to himself, don't ignore that */
 420       if(count(np) == 0){
 421          np = lextract(cp2, GTO | gf);
 422          head.h_mailx_raw_to = namelist_dup(np, GTO | gf);
 423       }
 424    }
 425    head.h_to = np;
 426
 427 jrecipients_done:
 428
 429    /* For list replies we want to automatically recognize the list address
 430     * given in the List-Post: header, so that we will not throw away a possible
 431     * corresponding receiver: temporarily "`mlist' the List-Post: address" */
 432    if((hf & HF_LIST_REPLY) && (cp = hfield1("list-post", mp)) != NULL){
 433       struct name *x;
 434
 435       if((x = lextract(cp, GEXTRA | GSKIN)) == NULL || x->n_flink != NULL ||
 436             (cp = url_mailto_to_address(x->n_name)) == NULL ||
 437             /* XXX terribly wasteful to create a new name, and can't we find
 438              * XXX a way to mitigate that?? */
 439             is_addr_invalid(x = nalloc(cp, GEXTRA | GSKIN), EACM_STRICT)){
 440          if(n_poption & n_PO_D_V)
 441             n_err(_("Message contains invalid List-Post: header\n"));
 442       }else{
 443          /* A special case has been seen on e.g. ietf-announce@ietf.org:
 444           * these usually post to multiple groups, with ietf-announce@
 445           * in List-Post:, but with Reply-To: set to ietf@ietf.org (since
 446           * -announce@ is only used for announcements, say).
 447           * So our desire is to honour this request and actively overwrite
 448           * List-Post: for our purpose; but only if its a single address.
 449           * However, to avoid ambiguities with users that place themselve in
 450           * Reply-To: and mailing lists which don't overwrite this (or only
 451           * extend this, shall such exist), only do so if reply_to exists of
 452           * a single address which points to the same domain as List-Post: */
 453          if(rt != NULL && rt->n_flink == NULL &&
 454                name_is_same_domain(x, rt))
 455             cp = rt->n_name; /* rt is EACM_STRICT tested */
 456          else
 457             cp = x->n_name;
 458
 459          /* XXX is_mlist_mp()?? */
 460          if(is_mlist(cp, FAL0) == MLIST_OTHER)
 461             head.h_list_post = cp;
 462       }
 463    }
 464
 465    /* In case of list replies we actively sort out any non-list recipient */
 466    if(hf & HF_LIST_REPLY){
 467       struct name **nhpp, *nhp, *tail;
 468
 469       cp = head.h_list_post;
 470
 471       nhp = *(nhpp = &head.h_to);
 472       head.h_to = NULL;
 473 j_lt_redo:
 474       for(tail = NULL; nhp != NULL;){
 475          np = nhp;
 476          nhp = nhp->n_flink;
 477
 478          /* XXX is_mlist_mp()?? */
 479          if((cp != NULL && !asccasecmp(cp, np->n_name)) ||
 480                is_mlist(np->n_name, FAL0) != MLIST_OTHER){
 481             if((np->n_blink = tail) != NULL)
 482                tail->n_flink = np;
 483             else
 484                *nhpp = np;
 485             np->n_flink = NULL;
 486             tail = np;
 487          }
 488       }
 489       if(nhpp == &head.h_to){
 490          nhp = *(nhpp = &head.h_cc);
 491          head.h_cc = NULL;
 492          goto j_lt_redo;
 493       }
 494
 495       /* For `Lreply' only, fail immediately with DESTADDRREQ if there are no
 496        * receivers at all! */
 497       if(head.h_to == NULL && head.h_cc == NULL){
 498          n_err(_("No recipients specified for `Lreply'\n"));
 499          if(msgvec[1] == 0){
 500             n_pstate_err_no = n_ERR_DESTADDRREQ;
 501             msgvec = NULL;
 502             goto jleave;
 503          }
 504          goto jskip_to_next;
 505       }
 506    }
 507
 508    /* Move Cc: to To: as appropriate! */
 509    if(head.h_to == NULL && (np = head.h_cc) != NULL){
 510       head.h_cc = NULL;
 511       for(head.h_to = np; np != NULL; np = np->n_flink)
 512          np->n_type = (np->n_type & ~GMASK) | GTO;
 513    }
 514
 515    a_crese_make_ref_and_cs(mp, &head);
 516
 517    if(mail1(&head, 1, mp, NULL, !!(hf & HF_RECIPIENT_RECORD), FAL0) != OKAY){
 518       msgvec = NULL;
 519       goto jleave;
 520    }
 521    if(ok_blook(markanswered) && !(mp->m_flag & MANSWERED))
 522       mp->m_flag |= MANSWER | MANSWERED;
 523    n_autorec_relax_gut();
 524
 525 jskip_to_next:
 526    if(*++msgvec != 0){
 527       /* TODO message (error) ring.., less sleep */
 528       if(n_psonce & n_PSO_INTERACTIVE){
 529          fprintf(n_stdout,
 530             _("Waiting a second before proceeding to the next message..\n"));
 531          fflush(n_stdout);
 532          n_msleep(1000, FAL0);
 533       }
 534       goto jwork_msg;
 535    }
 536
 537 jleave:
 538    NYD2_LEAVE;
 539    return (msgvec == NULL);
 540 }
 541
 542 static int
 543 (*a_crese_reply_or_Reply(char c))(int *, bool_t){
 544    int (*rv)(int*, bool_t);
 545    NYD2_ENTER;
 546
 547    rv = (ok_blook(flipr) ^ (c == 'R')) ? &a_crese_Reply : &a_crese_reply;
 548    NYD2_LEAVE;
 549    return rv;
 550 }
 551
 552 static int
 553 a_crese_reply(int *msgvec, bool_t recipient_record){
 554    int rv;
 555    NYD2_ENTER;
 556
 557    rv = a_crese_list_reply(msgvec,
 558          (recipient_record ? HF_RECIPIENT_RECORD : HF_NONE));
 559    NYD2_LEAVE;
 560    return rv;
 561 }
 562
 563 static int
 564 a_crese_Reply(int *msgvec, bool_t recipient_record){
 565    struct header head;
 566    struct message *mp;
 567    int *ap;
 568    enum gfield gf;
 569    NYD2_ENTER;
 570
 571    memset(&head, 0, sizeof head);
 572    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 573
 574    for(ap = msgvec; *ap != 0; ++ap){
 575       struct name *np;
 576
 577       mp = &message[*ap - 1];
 578       touch(mp);
 579       setdot(mp);
 580
 581       if((np = a_crese_reply_to(mp)) == NULL)
 582          np = lextract(n_header_senderfield_of(mp), GTO | gf);
 583       head.h_to = cat(head.h_to, np);
 584    }
 585
 586    mp = &message[msgvec[0] - 1];
 587    head.h_subject = hfield1("subject", mp);
 588    head.h_subject = a_crese_reedit(head.h_subject);
 589    a_crese_make_ref_and_cs(mp, &head);
 590    head.h_mailx_command = "Reply";
 591    head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 592    head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 593    head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 594    head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 595
 596    if(ok_blook(recipients_in_cc)){
 597       a_crese_polite_rt_mft_move(mp, &head, head.h_to);
 598
 599       head.h_mailx_raw_cc = namelist_dup(head.h_cc, GCC | gf);
 600       head.h_cc = n_alternates_remove(head.h_cc, FAL0);
 601    }
 602    head.h_mailx_raw_to = namelist_dup(head.h_to, GTO | gf);
 603    head.h_to = n_alternates_remove(head.h_to, FAL0);
 604
 605    if(ok_blook(quote_as_attachment)){
 606       head.h_attach = n_autorec_calloc(1, sizeof *head.h_attach);
 607       head.h_attach->a_msgno = *msgvec;
 608       head.h_attach->a_content_description = _("Original message content");
 609    }
 610
 611    if(mail1(&head, 1, mp, NULL, recipient_record, FAL0) != OKAY){
 612       msgvec = NULL;
 613       goto jleave;
 614    }
 615
 616    if(ok_blook(markanswered) && !(mp->m_flag & MANSWERED))
 617       mp->m_flag |= MANSWER | MANSWERED;
 618 jleave:
 619    NYD2_LEAVE;
 620    return (msgvec == NULL);
 621 }
 622
 623 static int
 624 a_crese_fwd(void *vp, bool_t recipient_record){
 625    struct header head;
 626    struct message *mp;
 627    enum gfield gf;
 628    bool_t forward_as_attachment;
 629    int *msgvec, rv;
 630    struct n_cmd_arg *cap;
 631    struct n_cmd_arg_ctx *cacp;
 632    NYD2_ENTER;
 633
 634    cacp = vp;
 635    cap = cacp->cac_arg;
 636    msgvec = cap->ca_arg.ca_msglist;
 637    cap = cap->ca_next;
 638    rv = 1;
 639
 640    if(cap->ca_arg.ca_str.s[0] == '\0'){
 641       if(!(n_pstate & (n_PS_HOOK_MASK | n_PS_ROBOT)) || (n_poption & n_PO_D_V))
 642          n_err(_("No recipient specified.\n"));
 643       n_pstate_err_no = n_ERR_DESTADDRREQ;
 644       goto jleave;
 645    }
 646
 647    forward_as_attachment = ok_blook(forward_as_attachment);
 648    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 649
 650    memset(&head, 0, sizeof head);
 651    head.h_to = lextract(cap->ca_arg.ca_str.s,
 652          (GTO | (ok_blook(fullnames) ? GFULL : GSKIN)));
 653
 654    mp = &message[*msgvec - 1];
 655    touch(mp);
 656    setdot(mp);
 657    head.h_subject = hfield1("subject", mp);
 658    head.h_subject = a_crese__fwdedit(head.h_subject);
 659    head.h_mailx_command = "forward";
 660    head.h_mailx_raw_to = namelist_dup(head.h_to, GTO | gf);
 661    head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 662    head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 663    head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 664    head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 665
 666    if(forward_as_attachment){
 667       head.h_attach = n_autorec_calloc(1, sizeof *head.h_attach);
 668       head.h_attach->a_msgno = *msgvec;
 669       head.h_attach->a_content_description = _("Forwarded message");
 670    }
 671
 672    rv = (mail1(&head, 1, (forward_as_attachment ? NULL : mp), NULL,
 673          recipient_record, TRU1) != OKAY); /* reverse! */
 674 jleave:
 675    NYD2_LEAVE;
 676    return rv;
 677 }
 678
 679 static char *
 680 a_crese__fwdedit(char *subj){
 681    struct str in, out;
 682    char *newsubj;
 683    NYD2_ENTER;
 684
 685    newsubj = NULL;
 686
 687    if(subj == NULL || *subj == '\0')
 688       goto jleave;
 689
 690    in.s = subj;
 691    in.l = strlen(subj);
 692    mime_fromhdr(&in, &out, TD_ISPR | TD_ICONV);
 693
 694    newsubj = n_autorec_alloc(out.l + 6);
 695    if(!ascncasecmp(out.s, "Fwd: ", sizeof("Fwd: ") -1)) /* TODO EXTEND SUPP.. */
 696       memcpy(newsubj, out.s, out.l +1);
 697    else{
 698       memcpy(newsubj, "Fwd: ", 5); /* TODO ..a la subject_re_trim()! */
 699       memcpy(&newsubj[5], out.s, out.l +1);
 700    }
 701
 702    n_free(out.s);
 703 jleave:
 704    NYD2_LEAVE;
 705    return newsubj;
 706 }
 707
 708 static int
 709 a_crese_resend1(void *vp, bool_t add_resent){
 710    struct header head;
 711    struct name *myto, *myrawto;
 712    enum gfield gf;
 713    int *msgvec, rv, *ip;
 714    struct n_cmd_arg *cap;
 715    struct n_cmd_arg_ctx *cacp;
 716    NYD2_ENTER;
 717
 718    cacp = vp;
 719    cap = cacp->cac_arg;
 720    msgvec = cap->ca_arg.ca_msglist;
 721    cap = cap->ca_next;
 722    rv = 1;
 723    n_pstate_err_no = n_ERR_DESTADDRREQ;
 724
 725    if(cap->ca_arg.ca_str.s[0] == '\0'){
 726       if(!(n_pstate & (n_PS_HOOK_MASK | n_PS_ROBOT)) || (n_poption & n_PO_D_V))
 727          n_err(_("No recipient specified.\n"));
 728       goto jleave;
 729    }
 730
 731    gf = ok_blook(fullnames) ? GFULL | GSKIN : GSKIN;
 732
 733    myrawto = nalloc(cap->ca_arg.ca_str.s, GTO | gf);
 734    myto = usermap(namelist_dup(myrawto, myrawto->n_type), FAL0);
 735    myto = n_alternates_remove(myto, TRU1);
 736    if(myto == NULL)
 737       goto jleave;
 738
 739    n_autorec_relax_create();
 740    for(ip = msgvec; *ip != 0; ++ip){
 741       struct message *mp;
 742
 743       mp = &message[*ip - 1];
 744       touch(mp);
 745       setdot(mp);
 746
 747       memset(&head, 0, sizeof head);
 748       head.h_to = myto;
 749       head.h_mailx_command = "resend";
 750       head.h_mailx_raw_to = myrawto;
 751       head.h_mailx_orig_from = lextract(hfield1("from", mp), GIDENT | gf);
 752       head.h_mailx_orig_to = lextract(hfield1("to", mp), GTO | gf);
 753       head.h_mailx_orig_cc = lextract(hfield1("cc", mp), GCC | gf);
 754       head.h_mailx_orig_bcc = lextract(hfield1("bcc", mp), GBCC | gf);
 755
 756       if(resend_msg(mp, &head, add_resent) != OKAY){
 757          /* n_autorec_relax_gut(); XXX but is handled automatically? */
 758          goto jleave;
 759       }
 760       n_autorec_relax_unroll();
 761    }
 762    n_autorec_relax_gut();
 763
 764    n_pstate_err_no = n_ERR_NONE;
 765    rv = 0;
 766 jleave:
 767    NYD2_LEAVE;
 768    return rv;
 769 }
 770
 771 FL int
 772 c_reply(void *vp){
 773    int rv;
 774    NYD_ENTER;
 775
 776    rv = (*a_crese_reply_or_Reply('r'))(vp, FAL0);
 777    NYD_LEAVE;
 778    return rv;
 779 }
 780
 781 FL int
 782 c_replyall(void *vp){
 783    int rv;
 784    NYD_ENTER;
 785
 786    rv = a_crese_reply(vp, FAL0);
 787    NYD_LEAVE;
 788    return rv;
 789 }
 790
 791 FL int
 792 c_replysender(void *vp){
 793    int rv;
 794    NYD_ENTER;
 795
 796    rv = a_crese_Reply(vp, FAL0);
 797    NYD_LEAVE;
 798    return rv;
 799 }
 800
 801 FL int
 802 c_Reply(void *vp){
 803    int rv;
 804    NYD_ENTER;
 805
 806    rv = (*a_crese_reply_or_Reply('R'))(vp, FAL0);
 807    NYD_LEAVE;
 808    return rv;
 809 }
 810
 811 FL int
 812 c_Lreply(void *vp){
 813    int rv;
 814    NYD_ENTER;
 815
 816    rv = a_crese_list_reply(vp, HF_LIST_REPLY);
 817    NYD_LEAVE;
 818    return rv;
 819 }
 820
 821 FL int
 822 c_followup(void *vp){
 823    int rv;
 824    NYD_ENTER;
 825
 826    rv = (*a_crese_reply_or_Reply('r'))(vp, TRU1);
 827    NYD_LEAVE;
 828    return rv;
 829 }
 830
 831 FL int
 832 c_followupall(void *vp){
 833    int rv;
 834    NYD_ENTER;
 835
 836    rv = a_crese_reply(vp, TRU1);
 837    NYD_LEAVE;
 838    return rv;
 839 }
 840
 841 FL int
 842 c_followupsender(void *vp){
 843    int rv;
 844    NYD_ENTER;
 845
 846    rv = a_crese_Reply(vp, TRU1);
 847    NYD_LEAVE;
 848    return rv;
 849 }
 850
 851 FL int
 852 c_Followup(void *vp){
 853    int rv;
 854    NYD_ENTER;
 855
 856    rv = (*a_crese_reply_or_Reply('R'))(vp, TRU1);
 857    NYD_LEAVE;
 858    return rv;
 859 }
 860
 861 FL int
 862 c_forward(void *vp){
 863    int rv;
 864    NYD_ENTER;
 865
 866    rv = a_crese_fwd(vp, FAL0);
 867    NYD_LEAVE;
 868    return rv;
 869 }
 870
 871 FL int
 872 c_Forward(void *vp){
 873    int rv;
 874    NYD_ENTER;
 875
 876    rv = a_crese_fwd(vp, TRU1);
 877    NYD_LEAVE;
 878    return rv;
 879 }
 880
 881 FL int
 882 c_resend(void *vp){
 883    int rv;
 884    NYD_ENTER;
 885
 886    rv = a_crese_resend1(vp, TRU1);
 887    NYD_LEAVE;
 888    return rv;
 889 }
 890
 891 FL int
 892 c_Resend(void *vp){
 893    int rv;
 894    NYD_ENTER;
 895
 896    rv = a_crese_resend1(vp, FAL0);
 897    NYD_LEAVE;
 898    return rv;
 899 }
 900
 901 /* s-it-mode */