main.c

/**
 * @file
 * Command line processing
 *
 * @authors
 * Copyright (C) 1996-2007,2010,2013 Michael R. Elkins <me@mutt.org>
 * Copyright (C) 1999-2007 Thomas Roessler <roessler@does-not-exist.org>
 * Copyright (C) 2004 g10 Code GmbH
 *
 * @copyright
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#define MAIN_C 1

#include "config.h"
#include <errno.h>
#include <libintl.h>
#include <limits.h>
#include <locale.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "mutt.h"
#include "address.h"
#include "alias.h"
#include "body.h"
#include "buffy.h"
#include "envelope.h"
#include "globals.h"
#include "header.h"
#include "keymap.h"
#include "lib/lib.h"
#include "list.h"
#include "mailbox.h"
#include "mutt_curses.h"
#include "mutt_idna.h"
#include "mutt_regex.h"
#include "mutt_socket.h"
#include "ncrypt/ncrypt.h"
#include "options.h"
#include "protos.h"
#include "rfc822.h"
#include "url.h"
#include "version.h"
#ifdef USE_SIDEBAR
#include "sidebar.h"
#endif
#ifdef USE_SASL
#include "mutt_sasl.h"
#endif
#ifdef USE_IMAP
#include "imap/imap.h"
#endif
#ifdef USE_NNTP
#include "nntp.h"
#endif

char **envlist = NULL;

void mutt_exit(int code)
{
  mutt_endwin(NULL);
  exit(code);
}

// clang-format off
static void usage(void)
{
  puts(mutt_make_version());

  puts(_("usage: mutt [<options>] [-z] [-f <file> | -yZ]\n"
         "       mutt [<options>] [-Ex] [-Hi <file>] [-s <subj>] [-bc <addr>] [-a <file> [...] --] <addr> [...]\n"
         "       mutt [<options>] [-x] [-s <subj>] [-bc <addr>] [-a <file> [...] --] <addr> [...] < message\n"
         "       mutt [<options>] -p\n"
         "       mutt [<options>] -A <alias> [...]\n"
         "       mutt [<options>] -Q <query> [...]\n"
         "       mutt [<options>] -B\n"
         "       mutt [<options>] -D [-S]\n"
         "       mutt -v[v]\n"));

  puts(_("options:\n"
         "  -A <alias>    expand the given alias\n"
         "  -a <file> [...] --    attach file(s) to the message\n"
         "                the list of files must be terminated with the \"--\" sequence\n"
         "  -b <address>  specify a blind carbon-copy (BCC) address\n"
         "  -c <address>  specify a carbon-copy (CC) address\n"
         "  -D            print the value of all variables to stdout\n"
         "  -D -S         like -D, but hide the value of sensitive variables\n"
         "  -B            run in batch mode (do not start the ncurses UI)"));
#ifdef DEBUG
  puts(_("  -d <level>    log debugging output to ~/.muttdebug0"));
#endif
  puts(_(
         "  -E            edit the draft (-H) or include (-i) file\n"
         "  -e <command>  specify a command to be executed after initialization\n"
         "  -f <file>     specify which mailbox to read\n"
         "  -F <file>     specify an alternate muttrc file\n"
         "  -g <server>   specify a news server (if compiled with NNTP)\n"
         "  -G            select a newsgroup (if compiled with NNTP)\n"
         "  -H <file>     specify a draft file to read header and body from\n"
         "  -i <file>     specify a file which Mutt should include in the body\n"
         "  -m <type>     specify a default mailbox type\n"
         "  -n            causes Mutt not to read the system Muttrc\n"
         "  -p            recall a postponed message"));

  puts(_("  -Q <variable> query a configuration variable\n"
         "  -R            open mailbox in read-only mode\n"
         "  -s <subj>     specify a subject (must be in quotes if it has spaces)\n"
         "  -v            show version and compile-time definitions\n"
         "  -x            simulate the mailx send mode\n"
         "  -y            select a mailbox specified in your `mailboxes' list\n"
         "  -z            exit immediately if there are no messages in the mailbox\n"
         "  -Z            open the first folder with new message, exit immediately if none\n"
         "  -h            this help message"));

  exit(0);
}
// clang-format on

static void start_curses(void)
{
  km_init(); /* must come before mutt_init */

#ifdef USE_SLANG_CURSES
  SLtt_Ignore_Beep = 1; /* don't do that #*$@^! annoying visual beep! */
  SLsmg_Display_Eight_Bit = 128; /* characters above this are printable */
  SLtt_set_color(0, NULL, "default", "default");
#if SLANG_VERSION >= 20000
  SLutf8_enable(-1);
#endif
#else
  /* should come before initscr() so that ncurses 4.2 doesn't try to install
     its own SIGWINCH handler */
  mutt_signal_init();
#endif
  if (initscr() == NULL)
  {
    puts(_("Error initializing terminal."));
    exit(1);
  }
  /* slang requires the signal handlers to be set after initializing */
  mutt_signal_init();
  ci_start_color();
  keypad(stdscr, true);
  cbreak();
  noecho();
  nonl();
#ifdef HAVE_TYPEAHEAD
  typeahead(-1); /* simulate smooth scrolling */
#endif
#ifdef HAVE_META
  meta(stdscr, true);
#endif
  init_extended_keys();
  mutt_reflow_windows();
}

#define MUTT_IGNORE (1 << 0)  /* -z */
#define MUTT_BUFFY (1 << 1)   /* -Z */
#define MUTT_NOSYSRC (1 << 2) /* -n */
#define MUTT_RO (1 << 3)      /* -R */
#define MUTT_SELECT (1 << 4)  /* -y */
#ifdef USE_NNTP
#define MUTT_NEWS (1 << 5) /* -g and -G */
#endif

/**
 * main - Start NeoMutt
 * @param argc Number of command line arguments
 * @param argv List of command line arguments
 * @param env  Copy of the environment
 * @retval 0 on success
 * @retval 1 on error
 */
int main(int argc, char **argv, char **env)
{
  char folder[_POSIX_PATH_MAX] = "";
  char *subject = NULL;
  char *includeFile = NULL;
  char *draftFile = NULL;
  char *newMagic = NULL;
  struct Header *msg = NULL;
  struct List *attach = NULL;
  struct List *commands = NULL;
  struct List *queries = NULL;
  struct List *alias_queries = NULL;
  int sendflags = 0;
  int flags = 0;
  int version = 0;
  int i;
  bool explicit_folder = false;
  bool dump_variables = false;
  bool hide_sensitive = false;
  bool batch_mode = false;
  bool edit_infile = false;
  extern char *optarg;
  extern int optind;
  int double_dash = argc, nargc = 1;

  /* sanity check against stupid administrators */

  if (getegid() != getgid())
  {
    fprintf(stderr, "%s: I don't want to run with privileges!\n", argv[0]);
    exit(1);
  }

  setlocale(LC_ALL, "");

#ifdef ENABLE_NLS
  /* FIXME what about the LOCALES_HACK in mutt_init() [init.c] ? */
  {
    char *domdir = getenv("TEXTDOMAINDIR");
    if (domdir && domdir[0])
      bindtextdomain(PACKAGE, domdir);
    else
      bindtextdomain(PACKAGE, MUTTLOCALEDIR);
    textdomain(PACKAGE);
  }
#endif

  mutt_message = mutt_error; /* send messages to stderr, too */
  mutt_perror = mutt_perror_debug;
  (void) mutt_rand32();
  umask(077);

  memset(Options, 0, sizeof(Options));
  memset(QuadOptions, 0, sizeof(QuadOptions));

  /* Init envlist */
  {
    char **srcp, **dstp;
    int count = 0;
    for (srcp = env; srcp && *srcp; srcp++)
      count++;
    envlist = safe_calloc(count + 1, sizeof(char *));
    for (srcp = env, dstp = envlist; srcp && *srcp; srcp++, dstp++)
      *dstp = safe_strdup(*srcp);
  }

  for (optind = 1; optind < double_dash;)
  {
    /* We're getopt'ing POSIXLY, so we'll be here every time getopt()
     * encounters a non-option.  That could be a file to attach
     * (all non-options between -a and --) or it could be an address
     * (which gets collapsed to the front of argv).
     */
    for (; optind < argc; optind++)
    {
      if (argv[optind][0] == '-' && argv[optind][1] != '\0')
      {
        if (argv[optind][1] == '-' && argv[optind][2] == '\0')
          double_dash = optind; /* quit outer loop after getopt */
        break;                  /* drop through to getopt */
      }

      /* non-option, either an attachment or address */
      if (attach)
        attach = mutt_add_list(attach, argv[optind]);
      else
        argv[nargc++] = argv[optind];
    }

    /* USE_NNTP 'g:G' */
    if ((i = getopt(argc, argv,
                    "+A:a:Bb:F:f:c:Dd:l:Ee:g:GH:s:i:hm:npQ:RSvxyzZ")) != EOF)
      switch (i)
      {
        case 'A':
          alias_queries = mutt_add_list(alias_queries, optarg);
          break;
        case 'a':
          attach = mutt_add_list(attach, optarg);
          break;

        case 'F':
          /* mutt_str_replace (&Muttrc, optarg); */
          Muttrc = mutt_add_list(Muttrc, optarg);
          break;

        case 'f':
          strfcpy(folder, optarg, sizeof(folder));
          explicit_folder = true;
          break;

        case 'b':
        case 'c':
          if (!msg)
            msg = mutt_new_header();
          if (!msg->env)
            msg->env = mutt_new_envelope();
          if (i == 'b')
            msg->env->bcc = rfc822_parse_adrlist(msg->env->bcc, optarg);
          else
            msg->env->cc = rfc822_parse_adrlist(msg->env->cc, optarg);
          break;

        case 'D':
          dump_variables = true;
          break;

        case 'B':
          batch_mode = true;
          break;

        case 'd':
#ifdef DEBUG
          if (mutt_atoi(optarg, &debuglevel_cmdline) < 0 || debuglevel_cmdline <= 0)
          {
            fprintf(stderr, _("Error: value '%s' is invalid for -d.\n"), optarg);
            return 1;
          }
          printf(_("Debugging at level %d.\n"), debuglevel_cmdline);
#else
          printf("%s",
                 _("DEBUG was not defined during compilation. -d Ignored.\n"));
#endif
          break;

        case 'E':
          edit_infile = true;
          break;

        case 'e':
          commands = mutt_add_list(commands, optarg);
          break;

        case 'H':
          draftFile = optarg;
          break;

        case 'i':
          includeFile = optarg;
          break;

        case 'l':
#ifdef DEBUG
          debugfile_cmdline = optarg;
          printf(_("Debugging at file %s.\n"), debugfile_cmdline);
#else
          printf(_("DEBUG was not defined during compilation. -l Ignored.\n"));
#endif
          break;

        case 'm':
          /* should take precedence over .muttrc setting, so save it for later */
          newMagic = optarg;
          break;

        case 'n':
          flags |= MUTT_NOSYSRC;
          break;

        case 'p':
          sendflags |= SENDPOSTPONED;
          break;

        case 'Q':
          queries = mutt_add_list(queries, optarg);
          break;

        case 'R':
          flags |= MUTT_RO; /* read-only mode */
          break;

        case 'S':
          hide_sensitive = true;
          break;

        case 's':
          subject = optarg;
          break;

        case 'v':
          version++;
          break;

        case 'x': /* mailx compatible send mode */
          sendflags |= SENDMAILX;
          break;

        case 'y': /* My special hack mode */
          flags |= MUTT_SELECT;
          break;

#ifdef USE_NNTP
        case 'g': /* Specify a news server */
        {
          char buf[LONG_STRING];

          snprintf(buf, sizeof(buf), "set news_server=%s", optarg);
          commands = mutt_add_list(commands, buf);
        }

        case 'G': /* List of newsgroups */
          flags |= MUTT_SELECT | MUTT_NEWS;
          break;
#endif

        case 'z':
          flags |= MUTT_IGNORE;
          break;

        case 'Z':
          flags |= MUTT_BUFFY | MUTT_IGNORE;
          break;

        default:
          usage();
      }
  }

  /* collapse remaining argv */
  while (optind < argc)
    argv[nargc++] = argv[optind++];
  optind = 1;
  argc = nargc;

  switch (version)
  {
    case 0:
      break;
    case 1:
      print_version();
      exit(0);
    default:
      print_copyright();
      exit(0);
  }

  /* Check for a batch send. */
  if (!isatty(0) || queries || alias_queries || dump_variables || batch_mode)
  {
    set_option(OPT_NO_CURSES);
    sendflags = SENDBATCH;
  }

  /* Always create the mutt_windows because batch mode has some shared code
   * paths that end up referencing them. */
  mutt_init_windows();

  /* This must come before mutt_init() because curses needs to be started
     before calling the init_pair() function to set the color scheme.  */
  if (!option(OPT_NO_CURSES))
  {
    start_curses();

    /* check whether terminal status is supported (must follow curses init) */
    TSSupported = mutt_ts_capability();
  }

  /* set defaults and read init files */
  mutt_init(flags & MUTT_NOSYSRC, commands);
  mutt_free_list(&commands);

  /* Initialize crypto backends.  */
  crypt_init();

  if (newMagic)
    mx_set_magic(newMagic);

  if (queries)
  {
    for (; optind < argc; optind++)
      queries = mutt_add_list(queries, argv[optind]);
    return mutt_query_variables(queries);
  }
  if (dump_variables)
    return mutt_dump_variables(hide_sensitive);

  if (alias_queries)
  {
    int rv = 0;
    struct Address *a = NULL;
    for (; optind < argc; optind++)
      alias_queries = mutt_add_list(alias_queries, argv[optind]);
    for (; alias_queries; alias_queries = alias_queries->next)
    {
      if ((a = mutt_lookup_alias(alias_queries->data)))
      {
        /* output in machine-readable form */
        mutt_addrlist_to_intl(a, NULL);
        mutt_write_address_list(a, stdout, 0, 0);
      }
      else
      {
        rv = 1;
        printf("%s\n", alias_queries->data);
      }
    }
    return rv;
  }

  if (!option(OPT_NO_CURSES))
  {
    SETCOLOR(MT_COLOR_NORMAL);
    clear();
    mutt_error = mutt_curses_error;
    mutt_message = mutt_curses_message;
  }

  /* Create the Maildir directory if it doesn't exist. */
  if (!option(OPT_NO_CURSES) && Maildir)
  {
    struct stat sb;
    char fpath[_POSIX_PATH_MAX];
    char msg2[STRING];

    strfcpy(fpath, Maildir, sizeof(fpath));
    mutt_expand_path(fpath, sizeof(fpath));
    bool skip = false;
#ifdef USE_IMAP
    /* we're not connected yet - skip mail folder creation */
    skip |= mx_is_imap(fpath);
#endif
#ifdef USE_NNTP
    skip |= mx_is_nntp(fpath);
#endif
    if (!skip && stat(fpath, &sb) == -1 && errno == ENOENT)
    {
      snprintf(msg2, sizeof(msg2), _("%s does not exist. Create it?"), Maildir);
      if (mutt_yesorno(msg2, MUTT_YES) == MUTT_YES)
      {
        if (mkdir(fpath, 0700) == -1 && errno != EEXIST)
          mutt_error(_("Can't create %s: %s."), Maildir, strerror(errno));
      }
    }
  }

  if (batch_mode)
    exit(0);

  if (sendflags & SENDPOSTPONED)
  {
    if (!option(OPT_NO_CURSES))
      mutt_flushinp();
    ci_send_message(SENDPOSTPONED, NULL, NULL, NULL, NULL);
    mutt_free_windows();
    mutt_endwin(NULL);
  }
  else if (subject || msg || sendflags || draftFile || includeFile || attach || optind < argc)
  {
    FILE *fin = NULL;
    FILE *fout = NULL;
    char buf[LONG_STRING];
    char *tempfile = NULL, *infile = NULL;
    char *bodytext = NULL, *bodyfile = NULL;
    int rv = 0;
    char expanded_infile[_POSIX_PATH_MAX];

    if (!option(OPT_NO_CURSES))
      mutt_flushinp();

    if (!msg)
      msg = mutt_new_header();
    if (!msg->env)
      msg->env = mutt_new_envelope();

    for (i = optind; i < argc; i++)
    {
      if (url_check_scheme(argv[i]) == U_MAILTO)
      {
        if (url_parse_mailto(msg->env, &bodytext, argv[i]) < 0)
        {
          if (!option(OPT_NO_CURSES))
            mutt_endwin(NULL);
          fputs(_("Failed to parse mailto: link\n"), stderr);
          exit(1);
        }
      }
      else
        msg->env->to = rfc822_parse_adrlist(msg->env->to, argv[i]);
    }

    if (!draftFile && option(OPT_AUTO_EDIT) && !msg->env->to && !msg->env->cc)
    {
      if (!option(OPT_NO_CURSES))
        mutt_endwin(NULL);
      fputs(_("No recipients specified.\n"), stderr);
      exit(1);
    }

    if (subject)
      msg->env->subject = safe_strdup(subject);

    if (draftFile)
    {
      infile = draftFile;
      includeFile = NULL;
    }
    else if (includeFile)
      infile = includeFile;
    else
      edit_infile = false;

    if (infile || bodytext)
    {
      /* Prepare fin and expanded_infile. */
      if (infile)
      {
        if (mutt_strcmp("-", infile) == 0)
        {
          if (edit_infile)
          {
            fputs(_("Cannot use -E flag with stdin\n"), stderr);
            exit(1);
          }
          fin = stdin;
        }
        else
        {
          strfcpy(expanded_infile, infile, sizeof(expanded_infile));
          mutt_expand_path(expanded_infile, sizeof(expanded_infile));
          if ((fin = fopen(expanded_infile, "r")) == NULL)
          {
            if (!option(OPT_NO_CURSES))
              mutt_endwin(NULL);
            perror(expanded_infile);
            exit(1);
          }
        }
      }

      /* Copy input to a tempfile, and re-point fin to the tempfile.
       * Note: stdin is always copied to a tempfile, ensuring draftFile
       * can stat and get the correct st_size below.
       */
      if (!edit_infile)
      {
        mutt_mktemp(buf, sizeof(buf));
        tempfile = safe_strdup(buf);

        if ((fout = safe_fopen(tempfile, "w")) == NULL)
        {
          if (!option(OPT_NO_CURSES))
            mutt_endwin(NULL);
          perror(tempfile);
          safe_fclose(&fin);
          FREE(&tempfile);
          exit(1);
        }
        if (fin)
        {
          mutt_copy_stream(fin, fout);
          if (fin != stdin)
            safe_fclose(&fin);
        }
        else if (bodytext)
          fputs(bodytext, fout);
        safe_fclose(&fout);

        if ((fin = fopen(tempfile, "r")) == NULL)
        {
          if (!option(OPT_NO_CURSES))
            mutt_endwin(NULL);
          perror(tempfile);
          FREE(&tempfile);
          exit(1);
        }
      }
      /* If editing the infile, keep it around afterwards so
       * it doesn't get unlinked, and we can rebuild the draftFile
       */
      else
        sendflags |= SENDNOFREEHEADER;

      /* Parse the draftFile into the full Header/Body structure.
       * Set SENDDRAFTFILE so ci_send_message doesn't overwrite
       * our msg->content.
       */
      if (draftFile)
      {
        struct Header *context_hdr = NULL;
        struct Envelope *opts_env = msg->env;
        struct stat st;
        struct List *uh = NULL, **last_uhp = NULL;

        sendflags |= SENDDRAFTFILE;

        /* Set up a "context" header with just enough information so that
         * mutt_prepare_template() can parse the message in fin.
         */
        context_hdr = mutt_new_header();
        context_hdr->offset = 0;
        context_hdr->content = mutt_new_body();
        if (fstat(fileno(fin), &st))
        {
          perror(draftFile);
          exit(1);
        }
        context_hdr->content->length = st.st_size;

        mutt_prepare_template(fin, NULL, msg, context_hdr, 0);

        /* Scan for mutt header to set OPT_RESUME_DRAFT_FILES */
        for (last_uhp = &msg->env->userhdrs, uh = *last_uhp; uh; uh = *last_uhp)
        {
          if (mutt_strncasecmp("X-Mutt-Resume-Draft:", uh->data, 20) == 0)
          {
            if (option(OPT_RESUME_EDITED_DRAFT_FILES))
              set_option(OPT_RESUME_DRAFT_FILES);

            *last_uhp = uh->next;
            uh->next = NULL;
            mutt_free_list(&uh);
          }
          else
            last_uhp = &uh->next;
        }

        rfc822_append(&msg->env->to, opts_env->to, 0);
        rfc822_append(&msg->env->cc, opts_env->cc, 0);
        rfc822_append(&msg->env->bcc, opts_env->bcc, 0);
        if (opts_env->subject)
          mutt_str_replace(&msg->env->subject, opts_env->subject);

        mutt_free_envelope(&opts_env);
        mutt_free_header(&context_hdr);
      }
      /* Editing the includeFile: pass it directly in.
       * Note that SENDNOFREEHEADER is set above so it isn't unlinked.
       */
      else if (edit_infile)
        bodyfile = expanded_infile;
      /* For bodytext and unedited includeFile: use the tempfile.
       */
      else
        bodyfile = tempfile;

      if (fin)
        safe_fclose(&fin);
    }

    FREE(&bodytext);

    if (attach)
    {
      struct List *t = attach;
      struct Body *a = msg->content;

      while (a && a->next)
        a = a->next;

      while (t)
      {
        if (a)
        {
          a->next = mutt_make_file_attach(t->data);
          a = a->next;
        }
        else
          msg->content = a = mutt_make_file_attach(t->data);
        if (!a)
        {
          if (!option(OPT_NO_CURSES))
            mutt_endwin(NULL);
          fprintf(stderr, _("%s: unable to attach file.\n"), t->data);
          mutt_free_list(&attach);
          exit(1);
        }
        t = t->next;
      }
      mutt_free_list(&attach);
    }

    rv = ci_send_message(sendflags, msg, bodyfile, NULL, NULL);

    if (edit_infile)
    {
      if (includeFile)
        msg->content->unlink = false;
      else if (draftFile)
      {
        if (truncate(expanded_infile, 0) == -1)
        {
          if (!option(OPT_NO_CURSES))
            mutt_endwin(NULL);
          perror(expanded_infile);
          exit(1);
        }
        if ((fout = safe_fopen(expanded_infile, "a")) == NULL)
        {
          if (!option(OPT_NO_CURSES))
            mutt_endwin(NULL);
          perror(expanded_infile);
          exit(1);
        }

        /* If the message was sent or postponed, these will already
         * have been done.
         */
        if (rv < 0)
        {
          if (msg->content->next)
            msg->content = mutt_make_multipart(msg->content);
          mutt_encode_descriptions(msg->content, 1);
          mutt_prepare_envelope(msg->env, 0);
          mutt_env_to_intl(msg->env, NULL, NULL);
        }

        mutt_write_rfc822_header(fout, msg->env, msg->content, -1, 0);
        if (option(OPT_RESUME_EDITED_DRAFT_FILES))
          fprintf(fout, "X-Mutt-Resume-Draft: 1\n");
        fputc('\n', fout);
        if ((mutt_write_mime_body(msg->content, fout) == -1))
        {
          if (!option(OPT_NO_CURSES))
            mutt_endwin(NULL);
          safe_fclose(&fout);
          exit(1);
        }
        safe_fclose(&fout);
      }

      mutt_free_header(&msg);
    }

    /* !edit_infile && draftFile will leave the tempfile around */
    if (tempfile)
    {
      unlink(tempfile);
      FREE(&tempfile);
    }

    mutt_free_windows();
    if (!option(OPT_NO_CURSES))
      mutt_endwin(NULL);

    if (rv)
      exit(1);
  }
  else
  {
    if (flags & MUTT_BUFFY)
    {
      if (!mutt_buffy_check(false))
      {
        mutt_endwin(_("No mailbox with new mail."));
        exit(1);
      }
      folder[0] = 0;
      mutt_buffy(folder, sizeof(folder));
    }
    else if (flags & MUTT_SELECT)
    {
#ifdef USE_NNTP
      if (flags & MUTT_NEWS)
      {
        set_option(OPT_NEWS);
        if (!(CurrentNewsSrv = nntp_select_server(NewsServer, 0)))
        {
          mutt_endwin(ErrorBuf);
          exit(1);
        }
      }
      else
#endif
          if (!Incoming)
      {
        mutt_endwin(_("No incoming mailboxes defined."));
        exit(1);
      }
      folder[0] = 0;
      mutt_select_file(folder, sizeof(folder), MUTT_SEL_FOLDER | MUTT_SEL_BUFFY);
      if (!folder[0])
      {
        mutt_endwin(NULL);
        exit(0);
      }
    }

    if (!folder[0])
    {
      if (SpoolFile)
        strfcpy(folder, NONULL(SpoolFile), sizeof(folder));
      else if (Maildir)
        strfcpy(folder, NONULL(Maildir), sizeof(folder));
      /* else no folder */
    }

#ifdef USE_NNTP
    if (option(OPT_NEWS))
    {
      unset_option(OPT_NEWS);
      nntp_expand_path(folder, sizeof(folder), &CurrentNewsSrv->conn->account);
    }
    else
#endif
      mutt_expand_path(folder, sizeof(folder));

    mutt_str_replace(&CurrentFolder, folder);
    mutt_str_replace(&LastFolder, folder);

    if (flags & MUTT_IGNORE)
    {
      /* check to see if there are any messages in the folder */
      switch (mx_check_empty(folder))
      {
        case -1:
          mutt_endwin(strerror(errno));
          exit(1);
        case 1:
          mutt_endwin(_("Mailbox is empty."));
          exit(1);
      }
    }

    mutt_folder_hook(folder);
    mutt_startup_shutdown_hook(MUTT_STARTUPHOOK);

    if ((Context = mx_open_mailbox(
             folder, ((flags & MUTT_RO) || option(OPT_READONLY)) ? MUTT_READONLY : 0, NULL)) ||
        !explicit_folder)
    {
#ifdef USE_SIDEBAR
      mutt_sb_set_open_buffy();
#endif
      mutt_index_menu();
      if (Context)
        FREE(&Context);
    }
#ifdef USE_IMAP
    imap_logout_all();
#endif
#ifdef USE_SASL
    mutt_sasl_done();
#endif
    mutt_free_opts();
    mutt_free_windows();
    mutt_endwin(ErrorBuf);
  }

  exit(0);
}