run_editor(): also compare size when deciding "has changed"

[s-mailx.git] / send.c

/*@ S-nail - a mail user agent derived from Berkeley Mail.
 *@ Mail to mail folders and displays.
 *
 * Copyright (c) 2000-2004 Gunnar Ritter, Freiburg i. Br., Germany.
 * Copyright (c) 2012 - 2014 Steffen (Daode) Nurpmeso <sdaoden@users.sf.net>.
 */
/*
 * Copyright (c) 1980, 1993
 * The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the University of
 *    California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef HAVE_AMALGAMATION
# include "nail.h"
#endif

enum pipeflags {
   PIPE_NULL,  /* No pipe- mimetype handler */
   PIPE_COMM,  /* Normal command */
   PIPE_ASYNC, /* Normal command, run asynchronous */
   PIPE_TEXT,  /* @ special command to force treatment as text */
   PIPE_MSG    /* Display message (returned as command string) */
};

enum parseflags {
   PARSE_DEFAULT  = 0,
   PARSE_DECRYPT  = 01,
   PARSE_PARTS    = 02
};

static sigjmp_buf _send_pipejmp;

/*  */
static struct mimepart *parsemsg(struct message *mp, enum parseflags pf);
static enum okay     parsepart(struct message *zmp, struct mimepart *ip,
                        enum parseflags pf, int level);
static void          parse822(struct message *zmp, struct mimepart *ip,
                        enum parseflags pf, int level);
#ifdef HAVE_SSL
static void          parsepkcs7(struct message *zmp, struct mimepart *ip,
                        enum parseflags pf, int level);
#endif
static void          _parsemultipart(struct message *zmp,
                        struct mimepart *ip, enum parseflags pf, int level);
static void          __newpart(struct mimepart *ip, struct mimepart **np,
                        off_t offs, int *part);
static void          __endpart(struct mimepart **np, off_t xoffs, long lines);

/* Going for user display, print Part: info string */
static void          _print_part_info(struct str *out, struct mimepart *mip,
                           struct ignoretab *doign, int level);

/* Query possible pipe command for MIME type */
static enum pipeflags _pipecmd(char **result, char const *content_type);

/* Create a pipe */
static FILE *        _pipefile(char const *pipecomm, FILE **qbuf, bool_t quote,
                        bool_t async);

/* Adjust output statistics */
SINLINE void         _addstats(off_t *stats, off_t lines, off_t bytes);

/* Call mime_write() as approbiate and adjust statistics */
SINLINE ssize_t      _out(char const *buf, size_t len, FILE *fp,
                        enum conversion convert, enum sendaction action,
                        struct quoteflt *qf, off_t *stats,
                        struct str *rest);

/* SIGPIPE handler */
static void          _send_onpipe(int signo);

/* Send one part */
static int           sendpart(struct message *zmp, struct mimepart *ip,
                        FILE *obuf, struct ignoretab *doign,
                        struct quoteflt *qf, enum sendaction action,
                        off_t *stats, int level);

/* Get a file for an attachment */
static FILE *        newfile(struct mimepart *ip, int *ispipe);

static void          pipecpy(FILE *pipebuf, FILE *outbuf, FILE *origobuf,
                        struct quoteflt *qf, off_t *stats);

/* Output a reasonable looking status field */
static void          statusput(const struct message *mp, FILE *obuf,
                        struct quoteflt *qf, off_t *stats);
static void          xstatusput(const struct message *mp, FILE *obuf,
                        struct quoteflt *qf, off_t *stats);

static void          put_from_(FILE *fp, struct mimepart *ip, off_t *stats);

static struct mimepart *
parsemsg(struct message *mp, enum parseflags pf)
{
   struct mimepart *ip;
   NYD_ENTER;

   ip = csalloc(1, sizeof *ip);
   ip->m_flag = mp->m_flag;
   ip->m_have = mp->m_have;
   ip->m_block = mp->m_block;
   ip->m_offset = mp->m_offset;
   ip->m_size = mp->m_size;
   ip->m_xsize = mp->m_xsize;
   ip->m_lines = mp->m_lines;
   ip->m_xlines = mp->m_lines;
   if (parsepart(mp, ip, pf, 0) != OKAY)
      ip = NULL;
   NYD_LEAVE;
   return ip;
}

static enum okay
parsepart(struct message *zmp, struct mimepart *ip, enum parseflags pf,
   int level)
{
   char *cp_b, *cp;
   enum okay rv = STOP;
   NYD_ENTER;

   ip->m_ct_type = hfield1("content-type", (struct message*)ip);
   if (ip->m_ct_type != NULL) {
      cp_b = ip->m_ct_type_plain = savestr(ip->m_ct_type);
      if ((cp = strchr(cp_b, ';')) != NULL)
         *cp = '\0';
      cp = cp_b + strlen(cp_b);
      while (cp > cp_b && blankchar(cp[-1]))
         --cp;
      *cp = '\0';
   } else if (ip->m_parent != NULL &&
         ip->m_parent->m_mimecontent == MIME_DIGEST)
      ip->m_ct_type_plain = UNCONST("message/rfc822");
   else
      ip->m_ct_type_plain = UNCONST("text/plain");

   if (ip->m_ct_type != NULL)
      ip->m_charset = mime_getparam("charset", ip->m_ct_type);
   if (ip->m_charset == NULL)
      ip->m_charset = charset_get_7bit();

   ip->m_ct_transfer_enc = hfield1("content-transfer-encoding",
         (struct message*)ip);
   ip->m_mimeenc = (ip->m_ct_transfer_enc != NULL)
         ? mime_getenc(ip->m_ct_transfer_enc) : MIME_7B;

   if (((cp = hfield1("content-disposition", (struct message*)ip)) == NULL ||
         (ip->m_filename = mime_getparam("filename", cp)) == NULL) &&
         ip->m_ct_type != NULL)
      ip->m_filename = mime_getparam("name", ip->m_ct_type);

   ip->m_mimecontent = mime_classify_content_of_part(ip);

   if (pf & PARSE_PARTS) {
      if (level > 9999) { /* TODO MAGIC */
         fprintf(stderr, _("MIME content too deeply nested\n"));
         goto jleave;
      }
      switch (ip->m_mimecontent) {
      case MIME_PKCS7:
         if (pf & PARSE_DECRYPT) {
#ifdef HAVE_SSL
            parsepkcs7(zmp, ip, pf, level);
            break;
#else
            fprintf(stderr, _("No SSL support compiled in.\n"));
            goto jleave;
#endif
         }
         /* FALLTHRU */
      default:
         break;
      case MIME_MULTI:
      case MIME_ALTERNATIVE:
      case MIME_DIGEST:
         _parsemultipart(zmp, ip, pf, level);
         break;
      case MIME_822:
         parse822(zmp, ip, pf, level);
         break;
      }
   }
   rv = OKAY;
jleave:
   NYD_LEAVE;
   return rv;
}

static void
parse822(struct message *zmp, struct mimepart *ip, enum parseflags pf,
   int level)
{
   int c, lastc = '\n';
   size_t cnt;
   FILE *ibuf;
   off_t offs;
   struct mimepart *np;
   long lines;
   NYD_ENTER;

   if ((ibuf = setinput(&mb, (struct message*)ip, NEED_BODY)) == NULL)
      goto jleave;

   cnt = ip->m_size;
   lines = ip->m_lines;
   while (cnt && ((c = getc(ibuf)) != EOF)) {
      --cnt;
      if (c == '\n') {
         --lines;
         if (lastc == '\n')
            break;
      }
      lastc = c;
   }
   offs = ftell(ibuf);

   np = csalloc(1, sizeof *np);
   np->m_flag = MNOFROM;
   np->m_have = HAVE_HEADER | HAVE_BODY;
   np->m_block = mailx_blockof(offs);
   np->m_offset = mailx_offsetof(offs);
   np->m_size = np->m_xsize = cnt;
   np->m_lines = np->m_xlines = lines;
   np->m_partstring = ip->m_partstring;
   np->m_parent = ip;
   ip->m_multipart = np;

   if (ok_blook(rfc822_body_from_)) {
      substdate((struct message*)np);
      np->m_from = fakefrom((struct message*)np);/* TODO strip MNOFROM flag? */
   }

   parsepart(zmp, np, pf, level + 1);
jleave:
   NYD_LEAVE;
}

#ifdef HAVE_SSL
static void
parsepkcs7(struct message *zmp, struct mimepart *ip, enum parseflags pf,
   int level)
{
   struct message m, *xmp;
   struct mimepart *np;
   char *to, *cc;
   NYD_ENTER;

   memcpy(&m, ip, sizeof m);
   to = hfield1("to", zmp);
   cc = hfield1("cc", zmp);

   if ((xmp = smime_decrypt(&m, to, cc, 0)) != NULL) {
      np = csalloc(1, sizeof *np);
      np->m_flag = xmp->m_flag;
      np->m_have = xmp->m_have;
      np->m_block = xmp->m_block;
      np->m_offset = xmp->m_offset;
      np->m_size = xmp->m_size;
      np->m_xsize = xmp->m_xsize;
      np->m_lines = xmp->m_lines;
      np->m_xlines = xmp->m_xlines;
      np->m_partstring = ip->m_partstring;

      if (parsepart(zmp, np, pf, level + 1) == OKAY) {
         np->m_parent = ip;
         ip->m_multipart = np;
      }
   }
   NYD_LEAVE;
}
#endif

static void
_parsemultipart(struct message *zmp, struct mimepart *ip, enum parseflags pf,
   int level)
{
   /* TODO Instead of the recursive multiple run parse we have today,
    * TODO the send/MIME layer rewrite must create a "tree" of parts with
    * TODO a single-pass parse, then address each part directly as
    * TODO necessary; since boundaries start with -- and the content
    * TODO rather forms a stack this is pretty cheap indeed! */
   struct mimepart *np = NULL;
   char *boundary, *line = NULL;
   size_t linesize = 0, linelen, cnt, boundlen;
   FILE *ibuf;
   off_t offs;
   int part = 0;
   long lines = 0;
   NYD_ENTER;

   if ((boundary = mime_get_boundary(ip->m_ct_type, &linelen)) == NULL)
      goto jleave;

   boundlen = linelen;
   if ((ibuf = setinput(&mb, (struct message*)ip, NEED_BODY)) == NULL)
      goto jleave;

   cnt = ip->m_size;
   while (fgetline(&line, &linesize, &cnt, &linelen, ibuf, 0))
      if (line[0] == '\n')
         break;
   offs = ftell(ibuf);

   __newpart(ip, &np, offs, NULL);
   while (fgetline(&line, &linesize, &cnt, &linelen, ibuf, 0)) {
      /* XXX linelen includes LF */
      if (!((lines > 0 || part == 0) && linelen > boundlen &&
            !strncmp(line, boundary, boundlen))) {
         ++lines;
         continue;
      }

      /* Subpart boundary? */
      if (line[boundlen] == '\n') {
         offs = ftell(ibuf);
         if (part > 0) {
            __endpart(&np, offs - boundlen - 2, lines);
            __newpart(ip, &np, offs - boundlen - 2, NULL);
         }
         __endpart(&np, offs, 2);
         __newpart(ip, &np, offs, &part);
         lines = 0;
         continue;
      }

      /* Final boundary?  Be aware of cases where there is no separating
       * newline in between boundaries, as has been seen in a message with
       * "Content-Type: multipart/appledouble;" */
      if (linelen < boundlen + 2)
         continue;
      linelen -= boundlen + 2;
      if (line[boundlen] != '-' || line[boundlen + 1] != '-' ||
            (linelen > 0 && line[boundlen + 2] != '\n'))
         continue;
      offs = ftell(ibuf);
      if (part != 0) {
         __endpart(&np, offs - boundlen - 4, lines);
         __newpart(ip, &np, offs - boundlen - 4, NULL);
      }
      __endpart(&np, offs + cnt, 2);
      break;
   }
   if (np) {
      offs = ftell(ibuf);
      __endpart(&np, offs, lines);
   }

   for (np = ip->m_multipart; np != NULL; np = np->m_nextpart)
      if (np->m_mimecontent != MIME_DISCARD)
         parsepart(zmp, np, pf, level + 1);
   free(line);
jleave:
   NYD_LEAVE;
}

static void
__newpart(struct mimepart *ip, struct mimepart **np, off_t offs, int *part)
{
   struct mimepart *pp;
   size_t sz;
   NYD_ENTER;

   *np = csalloc(1, sizeof **np);
   (*np)->m_flag = MNOFROM;
   (*np)->m_have = HAVE_HEADER | HAVE_BODY;
   (*np)->m_block = mailx_blockof(offs);
   (*np)->m_offset = mailx_offsetof(offs);

   if (part) {
      ++(*part);
      sz = (ip->m_partstring != NULL) ? strlen(ip->m_partstring) : 0;
      sz += 20;
      (*np)->m_partstring = salloc(sz);
      if (ip->m_partstring)
         snprintf((*np)->m_partstring, sz, "%s.%u", ip->m_partstring, *part);
      else
         snprintf((*np)->m_partstring, sz, "%u", *part);
   } else
      (*np)->m_mimecontent = MIME_DISCARD;
   (*np)->m_parent = ip;

   if (ip->m_multipart) {
      for (pp = ip->m_multipart; pp->m_nextpart != NULL; pp = pp->m_nextpart)
         ;
      pp->m_nextpart = *np;
   } else
      ip->m_multipart = *np;
   NYD_LEAVE;
}

static void
__endpart(struct mimepart **np, off_t xoffs, long lines)
{
   off_t offs;
   NYD_ENTER;

   offs = mailx_positionof((*np)->m_block, (*np)->m_offset);
   (*np)->m_size = (*np)->m_xsize = xoffs - offs;
   (*np)->m_lines = (*np)->m_xlines = lines;
   *np = NULL;
   NYD_LEAVE;
}

static void
_print_part_info(struct str *out, struct mimepart *mip,
   struct ignoretab *doign, int level)
{
   struct str ct = {NULL, 0}, cd = {NULL, 0};
   char const *ps;
   struct str const *cpre, *csuf;
   NYD_ENTER;

   /* Max. 24 */
   if (is_ign("content-type", 12, doign)) {
      out->s = mip->m_ct_type_plain;
      out->l = strlen(out->s);
      ct.s = ac_alloc(out->l + 2 +1);
      ct.s[0] = ',';
      ct.s[1] = ' ';
      ct.l = 2;
      if (is_prefix("application/", out->s)) {
         memcpy(ct.s + 2, "appl../", 7);
         ct.l += 7;
         out->l -= 12;
         out->s += 12;
         out->l = MIN(out->l, 17);
      } else
         out->l = MIN(out->l, 24);
      memcpy(ct.s + ct.l, out->s, out->l);
      ct.l += out->l;
      ct.s[ct.l] = '\0';
   }

   /* Max. 32 */
   if (is_ign("content-disposition", 19, doign) && mip->m_filename != NULL) {
      struct str ti, to;

      ti.l = strlen(ti.s = mip->m_filename);
      mime_fromhdr(&ti, &to, TD_ISPR | TD_ICONV | TD_DELCTRL);

      cd.s = ac_alloc(2 + 32 +1); /* FIXME was 25.. UNI: USE VISUAL WIDTH!!! */
      cd.s[0] = ',';
      cd.s[1] = ' ';
      cd.l = 2 + field_put_bidi_clip(cd.s + 2, 32 +1, to.s, to.l);

      free(to.s);
   }

   /* Take care of "99.99", i.e., 5 */
   if ((ps = mip->m_partstring) == NULL || ps[0] == '\0')
      ps = "?";

#ifdef HAVE_COLOUR
   cpre = colour_get(COLOURSPEC_PARTINFO);
   csuf = colour_get(COLOURSPEC_RESET);
#else
   cpre = csuf = NULL;
#endif

   /* Assume maximum possible sizes for 64 bit integers here to avoid any
    * buffer overflows just in case we have a bug somewhere and / or the
    * snprintf() is our internal version that doesn't really provide hard
    * buffer cuts TODO ensure upper bound on numbers, use 9999999 else */
#define __msg   "%s%s[-- #%s : %lu/%lu%s%s --]%s\n"
   out->l = sizeof(__msg) +
#ifdef HAVE_COLOUR
         (cpre != NULL ? cpre->l + csuf->l : 0) +
#endif
         strlen(ps) + 2*21 + ct.l + cd.l +1;
   out->s = salloc(out->l);
   out->l = snprintf(out->s, out->l, __msg,
         (level || (ps[0] != '1' && ps[1] == '\0') ? "\n" : ""),
            (cpre != NULL ? cpre->s : ""),
         ps, (ul_it)mip->m_lines, (ul_it)mip->m_size,
            (ct.s != NULL ? ct.s : ""),
            (cd.s != NULL ? cd.s : ""),
         (csuf != NULL ? csuf->s : ""));
   out->s[out->l] = '\0';
#undef __msg

   if (cd.s != NULL)
      ac_free(cd.s);
   if (ct.s != NULL)
      ac_free(ct.s);
   NYD_LEAVE;
}

static enum pipeflags
_pipecmd(char **result, char const *content_type)
{
   enum pipeflags ret;
   char *s, *cp;
   char const *cq;
   NYD_ENTER;

   ret = PIPE_NULL;
   *result = NULL;
   if (content_type == NULL)
      goto jleave;

   /* First check wether there is a special pipe-MIMETYPE handler */
   s = ac_alloc(strlen(content_type) + 5 +1);
   memcpy(s, "pipe-", 5);
   cp = s + 5;
   cq = content_type;
   do
      *cp++ = lowerconv(*cq);
   while (*cq++ != '\0');
   cp = vok_vlook(s);
   ac_free(s);

   if (cp == NULL)
      goto jleave;

   /* User specified a command, inspect for special cases */
   if (cp[0] != '@') {
      /* Normal command line */
      ret = PIPE_COMM;
      *result = cp;
   } else if (*++cp == '\0') {
      /* Treat as plain text */
      ret = PIPE_TEXT;
   } else if (!msglist_is_single) {
      /* Viewing multiple messages in one go, don't block system */
      ret = PIPE_MSG;
      *result = UNCONST(_("[Directly address message only to display this]\n"));
   } else {
      /* Viewing a single message only */
#if 0 /* TODO send/MIME layer rewrite: when we have a single-pass parser
    * TODO then the parsing phase and the send phase will be separated;
    * TODO that allows us to ask a user *before* we start the send, i.e.,
    * TODO *before* a pager pipe is setup (which is the problem with
    * TODO the '#if 0' code here) */
      size_t l = strlen(content_type);
      char const *x = _("Should i display a part `%s' (y/n)? ");
      s = ac_alloc(l += strlen(x) +1);
      snprintf(s, l - 1, x, content_type);
      l = getapproval(s), TRU1;
         puts(""); /* .. we've hijacked a pipe 8-] ... */
      ac_free(s);
      if (!l) {
         x = _("[User skipped diplay]\n");
         ret = PIPE_MSG;
         *result = UNCONST(x);
      } else
#endif
      if (cp[0] == '&')
         /* Asynchronous command, normal command line */
         ret = PIPE_ASYNC, *result = ++cp;
      else
         ret = PIPE_COMM, *result = cp;
   }
jleave:
   NYD_LEAVE;
   return ret;
}

static FILE *
_pipefile(char const *pipecomm, FILE **qbuf, bool_t quote, bool_t async)
{
   char const *sh;
   FILE *rbuf;
   NYD_ENTER;

   rbuf = *qbuf;

   if (quote) {
      if ((*qbuf = Ftmp(NULL, "sendp", OF_RDWR | OF_UNLINK | OF_REGISTER,
            0600)) == NULL) {
         perror(_("tmpfile"));
         *qbuf = rbuf;
      }
      async = FAL0;
   }

   if ((sh = ok_vlook(SHELL)) == NULL)
      sh = XSHELL;
   if ((rbuf = Popen(pipecomm, "W", sh, NULL, (async ? -1 : fileno(*qbuf)))
         ) == NULL)
      perror(pipecomm);
   else {
      fflush(*qbuf);
      if (*qbuf != stdout)
         fflush(stdout);
   }
   NYD_LEAVE;
   return rbuf;
}

SINLINE void
_addstats(off_t *stats, off_t lines, off_t bytes)
{
   NYD_ENTER;
   if (stats != NULL) {
      if (stats[0] >= 0)
         stats[0] += lines;
      stats[1] += bytes;
   }
   NYD_LEAVE;
}

SINLINE ssize_t
_out(char const *buf, size_t len, FILE *fp, enum conversion convert, enum
   sendaction action, struct quoteflt *qf, off_t *stats, struct str *rest)
{
   ssize_t sz = 0, n;
   int flags;
   char const *cp;
   NYD_ENTER;

#if 0
   Well ... it turns out to not work like that since of course a valid
   RFC 4155 compliant parser, like S-nail, takes care for From_ lines only
   after an empty line has been seen, which cannot be detected that easily
   right here!
ifdef HAVE_DEBUG /* TODO assert legacy */
   /* TODO if at all, this CAN only happen for SEND_DECRYPT, since all
    * TODO other input situations handle RFC 4155 OR, if newly generated,
    * TODO enforce quoted-printable if there is From_, as "required" by
    * TODO RFC 5751.  The SEND_DECRYPT case is not yet overhauled;
    * TODO if it may happen in this path, we should just treat decryption
    * TODO as we do for the other input paths; i.e., handle it in SSL!! */
   if (action == SEND_MBOX || action == SEND_DECRYPT)
      assert(!is_head(buf, len));
#else
   if ((/*action == SEND_MBOX ||*/ action == SEND_DECRYPT) &&
         is_head(buf, len)) {
      putc('>', fp);
      ++sz;
   }
#endif

   flags = ((int)action & _TD_EOF);
   action &= ~_TD_EOF;
   n = mime_write(buf, len, fp,
         action == SEND_MBOX ? CONV_NONE : convert,
         flags | ((action == SEND_TODISP || action == SEND_TODISP_ALL ||
            action == SEND_QUOTE || action == SEND_QUOTE_ALL)
         ?  TD_ISPR | TD_ICONV
         : (action == SEND_TOSRCH || action == SEND_TOPIPE)
            ? TD_ICONV : (action == SEND_SHOW ?  TD_ISPR : TD_NONE)),
         qf, rest);
   if (n < 0)
      sz = n;
   else if (n > 0) {
      sz = (ssize_t)((size_t)sz + n);
      n = 0;
      if (stats != NULL && stats[0] != -1)
         for (cp = buf; PTRCMP(cp, <, buf + sz); ++cp)
            if (*cp == '\n')
               ++n;
      _addstats(stats, n, sz);
   }
   NYD_LEAVE;
   return sz;
}

static void
_send_onpipe(int signo)
{
   NYD_X; /* Signal handler */
   UNUSED(signo);
   siglongjmp(_send_pipejmp, 1);
}

static int
sendpart(struct message *zmp, struct mimepart *ip, FILE * volatile obuf,
   struct ignoretab *doign, struct quoteflt *qf,
   enum sendaction volatile action, off_t *volatile stats, int level)
{
   int volatile ispipe, rv = 0;
   struct str rest;
   char *line = NULL, *cp, *cp2, *start, *pipecomm = NULL;
   size_t linesize = 0, linelen, cnt;
   int dostat, infld = 0, ignoring = 1, isenc, c;
   struct mimepart *volatile np;
   FILE * volatile ibuf = NULL, * volatile pbuf = obuf, * volatile qbuf = obuf,
      *origobuf = obuf;
   enum conversion volatile convert;
   sighandler_type volatile oldpipe = SIG_DFL;
   long lineno = 0;
   NYD_ENTER;

   if (ip->m_mimecontent == MIME_PKCS7 && ip->m_multipart &&
         action != SEND_MBOX && action != SEND_RFC822 && action != SEND_SHOW)
      goto jskip;

   dostat = 0;
   if (level == 0) {
      if (doign != NULL) {
         if (!is_ign("status", 6, doign))
            dostat |= 1;
         if (!is_ign("x-status", 8, doign))
            dostat |= 2;
      } else
         dostat = 3;
   }
   if ((ibuf = setinput(&mb, (struct message*)ip, NEED_BODY)) == NULL) {
      rv = -1;
      goto jleave;
   }
   cnt = ip->m_size;

   if (ip->m_mimecontent == MIME_DISCARD)
      goto jskip;

   if (!(ip->m_flag & MNOFROM))
      while (cnt && (c = getc(ibuf)) != EOF) {
         cnt--;
         if (c == '\n')
            break;
      }
   isenc = 0;
   convert = (action == SEND_TODISP || action == SEND_TODISP_ALL ||
         action == SEND_QUOTE || action == SEND_QUOTE_ALL ||
         action == SEND_TOSRCH)
         ? CONV_FROMHDR : CONV_NONE;

   /* Work the headers */
   quoteflt_reset(qf, obuf);
   while (fgetline(&line, &linesize, &cnt, &linelen, ibuf, 0)) {
      ++lineno;
      if (line[0] == '\n') {
         /* If line is blank, we've reached end of headers, so force out
          * status: field and note that we are no longer in header fields */
         if (dostat & 1)
            statusput(zmp, obuf, qf, stats);
         if (dostat & 2)
            xstatusput(zmp, obuf, qf, stats);
         if (doign != allignore)
            _out("\n", 1, obuf, CONV_NONE, SEND_MBOX, qf, stats, NULL);
         break;
      }

      isenc &= ~1;
      if (infld && blankchar(line[0])) {
         /* If this line is a continuation (SP / HT) of a previous header
          * field, determine if the start of the line is a MIME encoded word */
         if (isenc & 2) {
            for (cp = line; blankchar(*cp); ++cp);
            if (cp > line && linelen - PTR2SIZE(cp - line) > 8 &&
                  cp[0] == '=' && cp[1] == '?')
               isenc |= 1;
         }
      } else {
         /* Pick up the header field if we have one */
         for (cp = line; (c = *cp & 0377) && c != ':' && !spacechar(c); ++cp)
            ;
         cp2 = cp;
         while (spacechar(*cp))
            ++cp;
         if (cp[0] != ':' && level == 0 && lineno == 1) {
            /* Not a header line, force out status: This happens in uucp style
             * mail where there are no headers at all */
            if (dostat & 1)
               statusput(zmp, obuf, qf, stats);
            if (dostat & 2)
               xstatusput(zmp, obuf, qf, stats);
            if (doign != allignore)
               _out("\n", 1, obuf, CONV_NONE,SEND_MBOX, qf, stats, NULL);
            break;
         }

         /* If it is an ignored field and we care about such things, skip it.
          * Misuse dostat also for another bit xxx use a bitenum + for more */
         if (ok_blook(keep_content_length))
            dostat |= 1 << 2;
         c = *cp2;
         *cp2 = 0; /* temporarily null terminate */
         if ((doign && is_ign(line, PTR2SIZE(cp2 - line), doign)) ||
               (action == SEND_MBOX && !(dostat & (1 << 2)) &&
                (!asccasecmp(line, "content-length") ||
                !asccasecmp(line, "lines"))))
            ignoring = 1;
         else if (!asccasecmp(line, "status")) {
             /* If field is "status," go compute and print real Status: field */
            if (dostat & 1) {
               statusput(zmp, obuf, qf, stats);
               dostat &= ~1;
               ignoring = 1;
            }
         } else if (!asccasecmp(line, "x-status")) {
            /* If field is "status," go compute and print real Status: field */
            if (dostat & 2) {
               xstatusput(zmp, obuf, qf, stats);
               dostat &= ~2;
               ignoring = 1;
            }
         } else {
            ignoring = 0;
#ifdef HAVE_COLOUR
            pipecomm = savestrbuf(line, PTR2SIZE(cp2 - line));
#endif
         }
         *cp2 = c;
         dostat &= ~(1 << 2);
         infld = 1;
      }

      /* Determine if the end of the line is a MIME encoded word */
      /* TODO geeeh!  all this lengthy stuff that follows is about is dealing
       * TODO with header follow lines, and it should be up to the backend
       * TODO what happens and what not, i.e., it doesn't matter wether it's
       * TODO a MIME-encoded word or not, as long as a single separating space
       * TODO remains in between lines (the MIME stuff will correctly remove
       * TODO whitespace in between multiple adjacent encoded words) */
      isenc &= ~2;
      if (cnt && (c = getc(ibuf)) != EOF) {
         if (blankchar(c)) {
            cp = line + linelen - 1;
            if (linelen > 0 && *cp == '\n')
               --cp;
            while (cp >= line && whitechar(*cp))
               --cp;
            if (PTR2SIZE(cp - line > 8) && cp[0] == '=' && cp[-1] == '?')
               isenc |= 2;
         }
         ungetc(c, ibuf);
      }

      if (!ignoring) {
         size_t len = linelen;
         start = line;
         if (action == SEND_TODISP || action == SEND_TODISP_ALL ||
               action == SEND_QUOTE || action == SEND_QUOTE_ALL ||
               action == SEND_TOSRCH) {
            /* Strip blank characters if two MIME-encoded words follow on
             * continuing lines */
            if (isenc & 1)
               while (len > 0 && blankchar(*start)) {
                  ++start;
                  --len;
               }
            if (isenc & 2)
               if (len > 0 && start[len - 1] == '\n')
                  --len;
            while (len > 0 && blankchar(start[len - 1]))
               --len;
         }
#ifdef HAVE_COLOUR
         {
         bool_t colour_stripped = FAL0;
         if (pipecomm != NULL) {
            colour_put_header(obuf, pipecomm);
            if (len > 0 && start[len - 1] == '\n') {
               colour_stripped = TRU1;
               --len;
            }
         }
#endif
         _out(start, len, obuf, convert, action, qf, stats, NULL);
#ifdef HAVE_COLOUR
         if (pipecomm != NULL) {
            colour_reset(obuf); /* XXX reset after \n!! */
            if (colour_stripped)
               fputc('\n', obuf);
         }
         }
#endif
         if (ferror(obuf)) {
            free(line);
            rv = -1;
            goto jleave;
         }
      }
   }
   quoteflt_flush(qf);
   free(line);
   line = NULL;

jskip:
   switch (ip->m_mimecontent) {
   case MIME_822:
      switch (action) {
      case SEND_TODISP:
      case SEND_TODISP_ALL:
      case SEND_QUOTE:
      case SEND_QUOTE_ALL:
         if (ok_blook(rfc822_body_from_)) {
            if (qf->qf_pfix_len > 0) {
               size_t i = fwrite(qf->qf_pfix, sizeof *qf->qf_pfix,
                     qf->qf_pfix_len, obuf);
               if (i == qf->qf_pfix_len)
                  _addstats(stats, 0, i);
            }
            put_from_(obuf, ip->m_multipart, stats);
         }
         /* FALLTHRU */
      case SEND_TOSRCH:
      case SEND_DECRYPT:
         goto jmulti;
      case SEND_TOFILE:
      case SEND_TOPIPE:
         if (ok_blook(rfc822_body_from_))
            put_from_(obuf, ip->m_multipart, stats);
         /* FALLTHRU */
      case SEND_MBOX:
      case SEND_RFC822:
      case SEND_SHOW:
         break;
      }
      break;
   case MIME_TEXT_HTML:
   case MIME_TEXT:
   case MIME_TEXT_PLAIN:
      switch (action) {
      case SEND_TODISP:
      case SEND_TODISP_ALL:
      case SEND_QUOTE:
      case SEND_QUOTE_ALL:
         ispipe = TRU1;
         switch (_pipecmd(&pipecomm, ip->m_ct_type_plain)) {
         case PIPE_MSG:
            _out(pipecomm, strlen(pipecomm), obuf, CONV_NONE, SEND_MBOX, qf,
               stats, NULL);
            pipecomm = NULL;
            /* FALLTRHU */
         case PIPE_TEXT:
         case PIPE_COMM:
         case PIPE_ASYNC:
         case PIPE_NULL:
            break;
         }
         /* FALLTRHU */
      default:
         break;
      }
      break;
   case MIME_DISCARD:
      if (action != SEND_DECRYPT)
         goto jleave;
      break;
   case MIME_PKCS7:
      if (action != SEND_MBOX && action != SEND_RFC822 &&
            action != SEND_SHOW && ip->m_multipart != NULL)
         goto jmulti;
      /* FALLTHRU */
   default:
      switch (action) {
      case SEND_TODISP:
      case SEND_TODISP_ALL:
      case SEND_QUOTE:
      case SEND_QUOTE_ALL:
         ispipe = TRU1;
         switch (_pipecmd(&pipecomm, ip->m_ct_type_plain)) {
         case PIPE_MSG:
            _out(pipecomm, strlen(pipecomm), obuf, CONV_NONE, SEND_MBOX, qf,
               stats, NULL);
            pipecomm = NULL;
            break;
         case PIPE_ASYNC:
            ispipe = FAL0;
            /* FALLTHRU */
         case PIPE_COMM:
         case PIPE_NULL:
            break;
         case PIPE_TEXT:
            goto jcopyout; /* break; break; */
         }
         if (pipecomm != NULL)
            break;
         if (level == 0 && cnt) {
            char const *x = _("[Binary content]\n");
            _out(x, strlen(x), obuf, CONV_NONE, SEND_MBOX, qf, stats, NULL);
         }
         goto jleave;
      case SEND_TOFILE:
      case SEND_TOPIPE:
      case SEND_TOSRCH:
      case SEND_DECRYPT:
      case SEND_MBOX:
      case SEND_RFC822:
      case SEND_SHOW:
         break;
      }
      break;
   case MIME_ALTERNATIVE:
      if ((action == SEND_TODISP || action == SEND_QUOTE) &&
            !ok_blook(print_alternatives)) {
         bool_t doact = FAL0;

         for (np = ip->m_multipart; np != NULL; np = np->m_nextpart)
            if (np->m_mimecontent == MIME_TEXT_PLAIN)
               doact = TRU1;
         if (doact) {
            for (np = ip->m_multipart; np != NULL; np = np->m_nextpart) {
               if (np->m_ct_type_plain != NULL && action != SEND_QUOTE) {
                  _print_part_info(&rest, np, doign, level);
                  _out(rest.s, rest.l, obuf, CONV_NONE, SEND_MBOX, qf, stats,
                     NULL);
               }
               if (doact && np->m_mimecontent == MIME_TEXT_PLAIN) {
                  doact = FAL0;
                  rv = sendpart(zmp, np, obuf, doign, qf, action, stats,
                        level + 1);
                  quoteflt_reset(qf, origobuf);
                  if (rv < 0)
                     break;
               }
            }
            goto jleave;
         }
      }
      /* FALLTHRU */
   case MIME_MULTI:
   case MIME_DIGEST:
      switch (action) {
      case SEND_TODISP:
      case SEND_TODISP_ALL:
      case SEND_QUOTE:
      case SEND_QUOTE_ALL:
      case SEND_TOFILE:
      case SEND_TOPIPE:
      case SEND_TOSRCH:
      case SEND_DECRYPT:
jmulti:
         if ((action == SEND_TODISP || action == SEND_TODISP_ALL) &&
             ip->m_multipart != NULL &&
             ip->m_multipart->m_mimecontent == MIME_DISCARD &&
             ip->m_multipart->m_nextpart == NULL) {
            char const *x = _("[Missing multipart boundary - use \"show\" "
                  "to display the raw message]\n");
            _out(x, strlen(x), obuf, CONV_NONE, SEND_MBOX, qf, stats, NULL);
         }

         for (np = ip->m_multipart; np != NULL; np = np->m_nextpart) {
            if (np->m_mimecontent == MIME_DISCARD && action != SEND_DECRYPT)
               continue;
            ispipe = FAL0;
            switch (action) {
            case SEND_TOFILE:
               if (np->m_partstring && !strcmp(np->m_partstring, "1"))
                  break;
               stats = NULL;
               if ((obuf = newfile(np, UNVOLATILE(&ispipe))) == NULL)
                  continue;
               if (!ispipe)
                  break;
               if (sigsetjmp(_send_pipejmp, 1)) {
                  rv = -1;
                  goto jpipe_close;
               }
               oldpipe = safe_signal(SIGPIPE, &_send_onpipe);
               break;
            case SEND_TODISP:
            case SEND_TODISP_ALL:
            case SEND_QUOTE_ALL:
               if (ip->m_mimecontent != MIME_MULTI &&
                     ip->m_mimecontent != MIME_ALTERNATIVE &&
                     ip->m_mimecontent != MIME_DIGEST)
                  break;
               _print_part_info(&rest, np, doign, level);
               _out(rest.s, rest.l, obuf, CONV_NONE, SEND_MBOX, qf, stats,
                  NULL);
               break;
            case SEND_MBOX:
            case SEND_RFC822:
            case SEND_SHOW:
            case SEND_TOSRCH:
            case SEND_QUOTE:
            case SEND_DECRYPT:
            case SEND_TOPIPE:
               break;
            }

            quoteflt_flush(qf);
            if (sendpart(zmp, np, obuf, doign, qf, action, stats, level+1) < 0)
               rv = -1;
            quoteflt_reset(qf, origobuf);
            if (action == SEND_QUOTE)
               break;
            if (action == SEND_TOFILE && obuf != origobuf) {
               if (!ispipe)
                  Fclose(obuf);
               else {
jpipe_close:
                  safe_signal(SIGPIPE, SIG_IGN);
                  Pclose(obuf, TRU1);
                  safe_signal(SIGPIPE, oldpipe);
               }
            }
         }
         goto jleave;
      case SEND_MBOX:
      case SEND_RFC822:
      case SEND_SHOW:
         break;
      }
   }

   /* Copy out message body */
jcopyout:
   if (doign == allignore && level == 0) /* skip final blank line */
      --cnt;
   switch (ip->m_mimeenc) {
   case MIME_BIN:
      if (stats != NULL)
         stats[0] = -1;
      /* FALLTHRU */
   case MIME_7B:
   case MIME_8B:
      convert = CONV_NONE;
      break;
   case MIME_QP:
      convert = CONV_FROMQP;
      break;
   case MIME_B64:
      switch (ip->m_mimecontent) {
      case MIME_TEXT:
      case MIME_TEXT_PLAIN:
      case MIME_TEXT_HTML:
         convert = CONV_FROMB64_T;
         break;
      default:
         convert = CONV_FROMB64;
      }
      break;
   default:
      convert = CONV_NONE;
   }

   if (action == SEND_DECRYPT || action == SEND_MBOX ||
         action == SEND_RFC822 || action == SEND_SHOW)
      convert = CONV_NONE;
#ifdef HAVE_ICONV
   if ((action == SEND_TODISP || action == SEND_TODISP_ALL ||
         action == SEND_QUOTE || action == SEND_QUOTE_ALL ||
         action == SEND_TOSRCH) &&
         (ip->m_mimecontent == MIME_TEXT_PLAIN ||
          ip->m_mimecontent == MIME_TEXT_HTML ||
          ip->m_mimecontent == MIME_TEXT)) {
      char const *tcs = charset_get_lc();

      if (iconvd != (iconv_t)-1)
         n_iconv_close(iconvd);
      /* TODO Since Base64 has an odd 4:3 relation in between input
       * TODO and output an input line may end with a partial
       * TODO multibyte character; this is no problem at all unless
       * TODO we send to the display or whatever, i.e., ensure
       * TODO makeprint() or something; to avoid this trap, *force*
       * TODO iconv(), in which case this layer will handle leftovers
       * TODO correctly */
      if (convert == CONV_FROMB64_T || (asccasecmp(tcs, ip->m_charset) &&
            asccasecmp(charset_get_7bit(), ip->m_charset))) {
         iconvd = n_iconv_open(tcs, ip->m_charset);
         /* XXX Don't bail out if we cannot iconv(3) here;
          * XXX alternatively we could avoid trying to open
          * XXX if ip->m_charset is "unknown-8bit", which was
          * XXX the one that has bitten me?? */
         /*
          * TODO errors should DEFINETELY not be scrolled away!
          * TODO what about an error buffer (think old shsp(1)),
          * TODO re-dump errors since last snapshot when the
          * TODO command loop enters again?  i.e., at least print
          * TODO "There were errors ?" before the next prompt,
          * TODO so that the user can look at the error buffer?
          */
         if (iconvd == (iconv_t)-1 && errno == EINVAL) {
            fprintf(stderr, _("Cannot convert from %s to %s\n"),
               ip->m_charset, tcs);
            /*rv = 1; goto jleave;*/
         }
      }
   }
#endif

   if (pipecomm != NULL && (action == SEND_TODISP ||
         action == SEND_TODISP_ALL || action == SEND_QUOTE ||
         action == SEND_QUOTE_ALL)) {
      qbuf = obuf;
      pbuf = _pipefile(pipecomm, UNVOLATILE(&qbuf),
            (action == SEND_QUOTE || action == SEND_QUOTE_ALL), !ispipe);
      action = SEND_TOPIPE;
      if (pbuf != qbuf) {
         oldpipe = safe_signal(SIGPIPE, &_send_onpipe);
         if (sigsetjmp(_send_pipejmp, 1))
            goto jend;
      }
   } else
      pbuf = qbuf = obuf;

   {
   bool_t eof;
   ui32_t save_qf_pfix_len = qf->qf_pfix_len;
   off_t *save_stats = stats;

   if (pbuf != origobuf) {
      qf->qf_pfix_len = 0; /* XXX legacy (remove filter instead) */
      stats = NULL;
   }
   eof = FAL0;
   rest.s = NULL;
   rest.l = 0;

   quoteflt_reset(qf, pbuf);
   while (!eof && fgetline(&line, &linesize, &cnt, &linelen, ibuf, 0)) {
joutln:
      if (_out(line, linelen, pbuf, convert, action, qf, stats, &rest) < 0 ||
            ferror(pbuf)) {
         rv = -1; /* XXX Should bail away?! */
         break;
      }
   }
   if (!eof && rest.l != 0) {
      linelen = 0;
      eof = TRU1;
      action |= _TD_EOF;
      goto joutln;
   }
   quoteflt_flush(qf);
   if (rest.s != NULL)
      free(rest.s);

   if (pbuf != origobuf) {
      qf->qf_pfix_len = save_qf_pfix_len;
      stats = save_stats;
   }
   }

jend:
   free(line);
   if (pbuf != qbuf) {
      safe_signal(SIGPIPE, SIG_IGN);
      Pclose(pbuf, ispipe);
      safe_signal(SIGPIPE, oldpipe);
      if (qbuf != obuf)
         pipecpy(qbuf, obuf, origobuf, qf, stats);
   }
#ifdef HAVE_ICONV
   if (iconvd != (iconv_t)-1)
      n_iconv_close(iconvd);
#endif
jleave:
   NYD_LEAVE;
   return rv;
}

static FILE *
newfile(struct mimepart *ip, int *ispipe)
{
   struct str in, out;
   char *f;
   FILE *fp;
   NYD_ENTER;

   f = ip->m_filename;
   *ispipe = 0;

   if (f != NULL && f != (char*)-1) {
      in.s = f;
      in.l = strlen(f);
      mime_fromhdr(&in, &out, TD_ISPR);
      memcpy(f, out.s, out.l);
      *(f + out.l) = '\0';
      free(out.s);
   }

   if (options & OPT_INTERACTIVE) {
      char *f2, *f3;
jgetname:
      printf(_("Enter filename for part %s (%s)"),
         (ip->m_partstring != NULL) ? ip->m_partstring : "?",
         ip->m_ct_type_plain);
      f2 = readstr_input(": ", (f != (char*)-1) ? f : NULL);
      if (f2 == NULL || *f2 == '\0') {
         fprintf(stderr, _("... skipping this\n"));
         fp = NULL;
         goto jleave;
      } else if (*f2 == '|')
         /* Pipes are expanded by the shell */
         f = f2;
      else if ((f3 = file_expand(f2)) == NULL)
         /* (Error message written by file_expand()) */
         goto jgetname;
      else
         f = f3;
   }
   if (f == NULL || f == (char*)-1) {
      fp = NULL;
      goto jleave;
   }

   if (*f == '|') {
      char const *cp;
      cp = ok_vlook(SHELL);
      if (cp == NULL)
         cp = XSHELL;
      fp = Popen(f + 1, "w", cp, NULL, 1);
      if (!(*ispipe = (fp != NULL)))
         perror(f);
   } else {
      if ((fp = Fopen(f, "w")) == NULL)
         fprintf(stderr, _("Cannot open `%s'\n"), f);
   }
jleave:
   NYD_LEAVE;
   return fp;
}

static void
pipecpy(FILE *pipebuf, FILE *outbuf, FILE *origobuf, struct quoteflt *qf,
   off_t *stats)
{
   char *line = NULL; /* TODO line pool */
   size_t linesize = 0, linelen, cnt;
   ssize_t all_sz, sz;
   NYD_ENTER;

   fflush(pipebuf);
   rewind(pipebuf);
   cnt = fsize(pipebuf);
   all_sz = 0;

   quoteflt_reset(qf, outbuf);
   while (fgetline(&line, &linesize, &cnt, &linelen, pipebuf, 0) != NULL) {
      if ((sz = quoteflt_push(qf, line, linelen)) < 0)
         break;
      all_sz += sz;
   }
   if ((sz = quoteflt_flush(qf)) > 0)
      all_sz += sz;
   if (line)
      free(line);

   if (all_sz > 0 && outbuf == origobuf)
      _addstats(stats, 1, all_sz);
   fclose(pipebuf);
   NYD_LEAVE;
}

static void
statusput(const struct message *mp, FILE *obuf, struct quoteflt *qf,
   off_t *stats)
{
   char statout[3], *cp = statout;
   NYD_ENTER;

   if (mp->m_flag & MREAD)
      *cp++ = 'R';
   if (!(mp->m_flag & MNEW))
      *cp++ = 'O';
   *cp = 0;
   if (statout[0]) {
      int i = fprintf(obuf, "%.*sStatus: %s\n", (int)qf->qf_pfix_len,
            (qf->qf_pfix_len > 0 ? qf->qf_pfix : 0), statout);
      if (i > 0)
         _addstats(stats, 1, i);
   }
   NYD_LEAVE;
}

static void
xstatusput(const struct message *mp, FILE *obuf, struct quoteflt *qf,
   off_t *stats)
{
   char xstatout[4];
   char *xp = xstatout;
   NYD_ENTER;

   if (mp->m_flag & MFLAGGED)
      *xp++ = 'F';
   if (mp->m_flag & MANSWERED)
      *xp++ = 'A';
   if (mp->m_flag & MDRAFTED)
      *xp++ = 'T';
   *xp = 0;
   if (xstatout[0]) {
      int i = fprintf(obuf, "%.*sX-Status: %s\n", (int)qf->qf_pfix_len,
            (qf->qf_pfix_len > 0 ? qf->qf_pfix : 0), xstatout);
      if (i > 0)
         _addstats(stats, 1, i);
   }
   NYD_LEAVE;
}

static void
put_from_(FILE *fp, struct mimepart *ip, off_t *stats)
{
   char const *froma, *date, *nl;
   int i;
   NYD_ENTER;

   if (ip != NULL && ip->m_from != NULL) {
      froma = ip->m_from;
      date = fakedate(ip->m_time);
      nl = "\n";
   } else {
      froma = myname;
      date = time_current.tc_ctime;
      nl = "";
   }

   colour_put(fp, COLOURSPEC_FROM_);
   i = fprintf(fp, "From %s %s%s", froma, date, nl);
   colour_reset(fp);
   if (i > 0)
      _addstats(stats, (*nl != '\0'), i);
   NYD_LEAVE;
}

FL int
sendmp(struct message *mp, FILE *obuf, struct ignoretab *doign,
   char const *prefix, enum sendaction action, off_t *stats)
{
   struct quoteflt qf;
   size_t cnt, sz, i;
   FILE *ibuf;
   enum parseflags pf;
   struct mimepart *ip;
   int rv = -1, c;
   NYD_ENTER;

   if (mp == dot && action != SEND_TOSRCH)
      did_print_dot = 1;
   if (stats != NULL)
      stats[0] = stats[1] = 0;
   quoteflt_init(&qf, prefix);

   /* First line is the From_ line, so no headers there to worry about */
   if ((ibuf = setinput(&mb, mp, NEED_BODY)) == NULL)
      goto jleave;

   cnt = mp->m_size;
   sz = 0;
   {
   struct str const *cpre, *csuf;
#ifdef HAVE_COLOUR
   cpre = colour_get(COLOURSPEC_FROM_);
   csuf = colour_get(COLOURSPEC_RESET);
#else
   cpre = csuf = NULL;
#endif
   if (mp->m_flag & MNOFROM) {
      if (doign != allignore && doign != fwdignore && action != SEND_RFC822)
         sz = fprintf(obuf, "%s%.*sFrom %s %s%s\n",
               (cpre != NULL ? cpre->s : ""),
               (int)qf.qf_pfix_len, (qf.qf_pfix_len != 0 ? qf.qf_pfix : ""),
               fakefrom(mp), fakedate(mp->m_time),
               (csuf != NULL ? csuf->s : ""));
   } else {
      if (doign != allignore && doign != fwdignore && action != SEND_RFC822) {
         if (qf.qf_pfix_len > 0) {
            i = fwrite(qf.qf_pfix, sizeof *qf.qf_pfix, qf.qf_pfix_len, obuf);
            if (i != qf.qf_pfix_len)
               goto jleave;
            sz += i;
         }
#ifdef HAVE_COLOUR
         if (cpre != NULL) {
            fputs(cpre->s, obuf);
            cpre = (struct str const*)0x1;
         }
#endif
      }

      while (cnt > 0 && (c = getc(ibuf)) != EOF) {
         if (doign != allignore && doign != fwdignore &&
               action != SEND_RFC822) {
#ifdef HAVE_COLOUR
            if (c == '\n' && csuf != NULL) {
               cpre = (struct str const*)0x1;
               fputs(csuf->s, obuf);
            }
#endif
            putc(c, obuf);
            sz++;
         }
         --cnt;
         if (c == '\n')
            break;
      }

#ifdef HAVE_COLOUR
      if (csuf != NULL && cpre != (struct str const*)0x1)
         fputs(csuf->s, obuf);
#endif
   }
   }
   if (sz > 0)
      _addstats(stats, 1, sz);

   pf = 0;
   if (action != SEND_MBOX && action != SEND_RFC822 && action != SEND_SHOW)
      pf |= PARSE_DECRYPT | PARSE_PARTS;
   if ((ip = parsemsg(mp, pf)) == NULL)
      goto jleave;

   rv = sendpart(mp, ip, obuf, doign, &qf, action, stats, 0);
jleave:
   quoteflt_destroy(&qf);
   NYD_LEAVE;
   return rv;
}

/* vim:set fenc=utf-8:s-it-mode */