main.c File Reference

Command line processing. More...

#include "config.h"
#include <errno.h>
#include <getopt.h>
#include <limits.h>
#include <locale.h>
#include <pwd.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "mutt/lib.h"
#include "address/lib.h"
#include "config/lib.h"
#include "email/lib.h"
#include "core/lib.h"
#include "alias/lib.h"
#include "conn/lib.h"
#include "gui/lib.h"
#include "attach/lib.h"
#include "browser/lib.h"
#include "color/lib.h"
#include "index/lib.h"
#include "menu/lib.h"
#include "ncrypt/lib.h"
#include "postpone/lib.h"
#include "question/lib.h"
#include "send/lib.h"
#include "alternates.h"
#include "commands.h"
#include "hook.h"
#include "init.h"
#include "keymap.h"
#include "mutt_globals.h"
#include "mutt_history.h"
#include "mutt_logging.h"
#include "mutt_mailbox.h"
#include "muttlib.h"
#include "mx.h"
#include "myvar.h"
#include "options.h"
#include "protos.h"
#include "subjectrx.h"
#include "version.h"
#include <libintl.h>
#include "imap/lib.h"
#include "pop/lib.h"
#include "nntp/lib.h"
#include "nntp/adata.h"
#include "nntp/mdata.h"
#include "autocrypt/lib.h"

Go to the source code of this file.

Macros
#define	MAIN_C   1
#define	GNULIB_defined_setlocale
#define	MUTT_CLI_NO_FLAGS   0
	No flags are set. More...
#define	MUTT_CLI_IGNORE   (1 << 0)
	-z Open first mailbox if it has mail More...
#define	MUTT_CLI_MAILBOX   (1 << 1)
	-Z Open first mailbox if is has new mail More...
#define	MUTT_CLI_NOSYSRC   (1 << 2)
	-n Do not read the system-wide config file More...
#define	MUTT_CLI_RO   (1 << 3)
	-R Open mailbox in read-only mode More...
#define	MUTT_CLI_SELECT   (1 << 4)
	-y Start with a list of all mailboxes More...
#define	MUTT_CLI_NEWS   (1 << 5)
	-g/-G Start with a list of all newsgroups More...

Typedefs
typedef uint8_t	CliFlags
	Flags for command line options, e.g. MUTT_CLI_IGNORE. More...

Functions
static void	reset_tilde (struct ConfigSet *cs)
	Temporary measure. More...
void	mutt_exit (int code)
	Leave NeoMutt NOW. More...
static bool	usage (void)
	Display NeoMutt command line. More...
static int	start_curses (void)
	Start the Curses UI. More...
static void	init_locale (void)
	Initialise the Locale/NLS settings. More...
static bool	get_user_info (struct ConfigSet *cs)
	Find the user's name, home and shell. More...
static void	log_translation (void)
	Log the translation being used. More...
int	main (int argc, char *argv[], char *envp[])
	Start NeoMutt. More...

Detailed Description

Command line processing.

Authors

• Michael R. Elkins
• Thomas Roessler
• g10 Code GmbH
• Pietro Cerutti
• R Primus

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/.

Definition in file main.c.

Macro Definition Documentation

MAIN_C

#define MAIN_C   1

Definition at line 138 of file main.c.

GNULIB_defined_setlocale

#define GNULIB_defined_setlocale

Definition at line 139 of file main.c.

MUTT_CLI_NO_FLAGS

#define MUTT_CLI_NO_FLAGS   0

No flags are set.

Definition at line 210 of file main.c.

MUTT_CLI_IGNORE

#define MUTT_CLI_IGNORE   (1 << 0)

-z Open first mailbox if it has mail

Definition at line 211 of file main.c.

MUTT_CLI_MAILBOX

#define MUTT_CLI_MAILBOX   (1 << 1)

-Z Open first mailbox if is has new mail

Definition at line 212 of file main.c.

MUTT_CLI_NOSYSRC

#define MUTT_CLI_NOSYSRC   (1 << 2)

-n Do not read the system-wide config file

Definition at line 213 of file main.c.

MUTT_CLI_RO

#define MUTT_CLI_RO   (1 << 3)

-R Open mailbox in read-only mode

Definition at line 214 of file main.c.

MUTT_CLI_SELECT

#define MUTT_CLI_SELECT   (1 << 4)

-y Start with a list of all mailboxes

Definition at line 215 of file main.c.

MUTT_CLI_NEWS

#define MUTT_CLI_NEWS   (1 << 5)

-g/-G Start with a list of all newsgroups

Definition at line 217 of file main.c.

Typedef Documentation

CliFlags

typedef uint8_t CliFlags

Flags for command line options, e.g. MUTT_CLI_IGNORE.

Definition at line 209 of file main.c.

Function Documentation

reset_tilde()

static void reset_tilde ( struct ConfigSet *  cs )

static

Temporary measure.

Parameters

cs	Config Set

Definition at line 225 of file main.c.

{
  static const char *names[] = { "folder", "mbox", "postponed", "record" };
 
  struct Buffer value = mutt_buffer_make(256);
  for (size_t i = 0; i < mutt_array_size(names); i++)
  {
    struct HashElem *he = cs_get_elem(cs, names[i]);
    if (!he)
      continue;
    mutt_buffer_reset(&value);
    cs_he_initial_get(cs, he, &value);
    mutt_buffer_expand_path_regex(&value, false);
    cs_he_initial_set(cs, he, value.data, NULL);
    cs_he_reset(cs, he, NULL);
  }
  mutt_buffer_dealloc(&value);
}

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mutt_exit()

void mutt_exit

(

int

code

)

Leave NeoMutt NOW.

Parameters

code	Value to return to the calling environment

Definition at line 248 of file main.c.

{
  mutt_endwin();
#ifdef HAVE_LIBUNWIND
  if (code != 0)
    show_backtrace();
#endif
  exit(code);
}

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usage()

static bool usage ( void  )

static

Display NeoMutt command line.

Return values

true	Text displayed

Definition at line 262 of file main.c.

{
  puts(mutt_make_version());
 
  // clang-format off
  /* L10N: Try to limit to 80 columns */
  puts(_("usage:"));
  puts(_("  neomutt [-Enx] [-e <command>] [-F <config>] [-H <draft>] [-i <include>]\n"
         "          [-b <address>] [-c <address>] [-s <subject>] [-a <file> [...] --]\n"
         "          <address> [...]"));
  puts(_("  neomutt [-nx] [-e <command>] [-F <config>] [-b <address>] [-c <address>]\n"
         "          [-s <subject>] [-a <file> [...] --] <address> [...] < message"));
  puts(_("  neomutt [-nRy] [-e <command>] [-F <config>] [-f <mailbox>] [-m <type>]"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -A <alias>"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -B"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -D [-S] [-O]"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -d <level> -l <file>"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -G"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -g <server>"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -p"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -Q <variable> [-O]"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -Z"));
  puts(_("  neomutt [-n] [-e <command>] [-F <config>] -z [-f <mailbox>]"));
  puts(_("  neomutt -v[v]\n"));
 
  /* L10N: Try to limit to 80 columns.  If more space is needed add an indented line */
  puts(_("options:"));
  puts(_("  --            Special argument forces NeoMutt to stop option parsing and treat\n"
         "                remaining arguments as addresses even if they start with a dash"));
  puts(_("  -A <alias>    Print an expanded version of the given alias to stdout and exit"));
  puts(_("  -a <file>     Attach one or more files to a message (must be the last option)\n"
         "                Add any addresses after the '--' argument"));
  puts(_("  -B            Run in batch mode (do not start the ncurses UI)"));
  puts(_("  -b <address>  Specify a blind carbon copy (Bcc) recipient"));
  puts(_("  -c <address>  Specify a carbon copy (Cc) recipient"));
  puts(_("  -D            Dump all config variables as 'name=value' pairs to stdout"));
  puts(_("  -D -O         Like -D, but show one-liner documentation"));
  puts(_("  -D -S         Like -D, but hide the value of sensitive variables"));
  puts(_("  -d <level>    Log debugging output to a file (default is \"~/.neomuttdebug0\")\n"
         "                The level can range from 1-5 and affects verbosity"));
  puts(_("  -E            Edit draft (-H) or include (-i) file during message composition"));
  puts(_("  -e <command>  Specify a command to be run after reading the config files"));
  puts(_("  -F <config>   Specify an alternative initialization file to read"));
  puts(_("  -f <mailbox>  Specify a mailbox (as defined with 'mailboxes' command) to load"));
  puts(_("  -G            Start NeoMutt with a listing of subscribed newsgroups"));
  puts(_("  -g <server>   Like -G, but start at specified news server"));
  puts(_("  -H <draft>    Specify a draft file with header and body for message composing"));
  puts(_("  -h            Print this help message and exit"));
  puts(_("  -i <include>  Specify an include file to be embedded in the body of a message"));
  puts(_("  -l <file>     Specify a file for debugging output (default \"~/.neomuttdebug0\")"));
  puts(_("  -m <type>     Specify a default mailbox format type for newly created folders\n"
         "                The type is either MH, MMDF, Maildir or mbox (case-insensitive)"));
  puts(_("  -n            Do not read the system-wide configuration file"));
  puts(_("  -p            Resume a prior postponed message, if any"));
  puts(_("  -Q <variable> Query a configuration variable and print its value to stdout\n"
         "                (after the config has been read and any commands executed)\n"
         "                Add -O for one-liner documentation"));
  puts(_("  -R            Open mailbox in read-only mode"));
  puts(_("  -s <subject>  Specify a subject (must be enclosed in quotes if it has spaces)"));
  puts(_("  -v            Print the NeoMutt version and compile-time definitions and exit"));
  puts(_("  -vv           Print the NeoMutt license and copyright information and exit"));
  puts(_("  -y            Start NeoMutt with a listing of all defined mailboxes"));
  puts(_("  -Z            Open the first mailbox with new message or exit immediately with\n"
         "                exit code 1 if none is found in all defined mailboxes"));
  puts(_("  -z            Open the first or specified (-f) mailbox if it holds any message\n"
         "                or exit immediately with exit code 1 otherwise"));
  // clang-format on
 
  fflush(stdout);
  return !ferror(stdout);
}

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start_curses()

static int start_curses ( void  )

static

Start the Curses UI.

Return values

0	Success
1	Failure

Definition at line 339 of file main.c.

{
  km_init(); /* must come before mutt_init */
 
  /* should come before initscr() so that ncurses 4.2 doesn't try to install
   * its own SIGWINCH handler */
  mutt_signal_init();
 
  if (!initscr())
  {
    mutt_error(_("Error initializing terminal"));
    return 1;
  }
  mutt_signal_init();
  mutt_colors_init();
  keypad(stdscr, true);
  cbreak();
  noecho();
  nonl();
  typeahead(-1); /* simulate smooth scrolling */
  meta(stdscr, true);
  init_extended_keys();
  /* Now that curses is set up, we drop back to normal screen mode.
   * This simplifies displaying error messages to the user.
   * The first call to refresh() will swap us back to curses screen mode. */
  endwin();
  return 0;
}

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init_locale()

static void init_locale ( void  )

static

Initialise the Locale/NLS settings.

Definition at line 371 of file main.c.

{
  setlocale(LC_ALL, "");
 
#ifdef ENABLE_NLS
  const char *domdir = mutt_str_getenv("TEXTDOMAINDIR");
  if (domdir)
    bindtextdomain(PACKAGE, domdir);
  else
    bindtextdomain(PACKAGE, MUTTLOCALEDIR);
  textdomain(PACKAGE);
#endif
#ifndef LOCALES_HACK
  /* Do we have a locale definition? */
  if (mutt_str_getenv("LC_ALL") || mutt_str_getenv("LANG") || mutt_str_getenv("LC_CTYPE"))
  {
    OptLocales = true;
  }
#endif
}

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get_user_info()

static bool get_user_info ( struct ConfigSet *  cs )

static

Find the user's name, home and shell.

Parameters

cs	Config Set

Return values

true

Success

Find the login name, real name, home directory and shell.

Definition at line 399 of file main.c.

{
  const char *shell = mutt_str_getenv("SHELL");
  if (shell)
    cs_str_initial_set(cs, "shell", shell, NULL);
 
  /* Get some information about the user */
  struct passwd *pw = getpwuid(getuid());
  if (pw)
  {
    if (!Username)
      Username = mutt_str_dup(pw->pw_name);
    if (!HomeDir)
      HomeDir = mutt_str_dup(pw->pw_dir);
    if (!shell)
      cs_str_initial_set(cs, "shell", pw->pw_shell, NULL);
  }
 
  if (!Username)
  {
    mutt_error(_("unable to determine username"));
    return false; // TEST05: neomutt (unset $USER, delete user from /etc/passwd)
  }
 
  if (!HomeDir)
  {
    mutt_error(_("unable to determine home directory"));
    return false; // TEST06: neomutt (unset $HOME, delete user from /etc/passwd)
  }
 
  cs_str_reset(cs, "shell", NULL);
  return true;
}

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log_translation()

static void log_translation ( void  )

static

Log the translation being used.

Read the header info from the translation file.

Note

Call bindtextdomain() first

Definition at line 440 of file main.c.

{
  const char *header = ""; // Do not merge these two lines
  header = _(header);      // otherwise the .po files will end up badly ordered
  const char *label = "Language:"; // the start of the lookup/needle
  const char *lang = mutt_istr_find(header, label);
  int len = 64;
  if (lang)
  {
    lang += strlen(label); // skip label
    SKIPWS(lang);
    char *nl = strchr(lang, '\n');
    if (nl)
      len = (nl - lang);
  }
  else
  {
    lang = "NONE";
  }
 
  mutt_debug(LL_DEBUG1, "Translation: %.*s\n", len, lang);
}

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main()

int main	(	int	argc,
		char *	argv[],
		char *	envp[]
	)

Start NeoMutt.

Parameters

argc	Number of command line arguments
argv	List of command line arguments
envp	Copy of the environment

Return values

0	Success
1	Error

Definition at line 475 of file main.c.

{
  char *subject = NULL;
  char *include_file = NULL;
  char *draft_file = NULL;
  char *new_type = NULL;
  char *dlevel = NULL;
  char *dfile = NULL;
#ifdef USE_NNTP
  const char *cli_nntp = NULL;
#endif
  struct Email *e = NULL;
  struct ListHead attach = STAILQ_HEAD_INITIALIZER(attach);
  struct ListHead commands = STAILQ_HEAD_INITIALIZER(commands);
  struct ListHead queries = STAILQ_HEAD_INITIALIZER(queries);
  struct ListHead alias_queries = STAILQ_HEAD_INITIALIZER(alias_queries);
  struct ListHead cc_list = STAILQ_HEAD_INITIALIZER(cc_list);
  struct ListHead bcc_list = STAILQ_HEAD_INITIALIZER(bcc_list);
  SendFlags sendflags = SEND_NO_FLAGS;
  CliFlags flags = MUTT_CLI_NO_FLAGS;
  int version = 0;
  int i;
  bool explicit_folder = false;
  bool dump_variables = false;
  bool one_liner = false;
  bool hide_sensitive = false;
  bool batch_mode = false;
  bool edit_infile = false;
#ifdef USE_DEBUG_PARSE_TEST
  bool test_config = false;
#endif
  int double_dash = argc, nargc = 1;
  int rc = 1;
  bool repeat_error = false;
  struct Buffer folder = mutt_buffer_make(0);
  struct Buffer expanded_infile = mutt_buffer_make(0);
  struct Buffer tempfile = mutt_buffer_make(0);
  struct ConfigSet *cs = NULL;
 
  MuttLogger = log_disp_terminal;
 
  /* sanity check against stupid administrators */
  if (getegid() != getgid())
  {
    mutt_error("%s: I don't want to run with privileges!", (argc != 0) ? argv[0] : "neomutt");
    goto main_exit; // TEST01: neomutt (as root, chgrp mail neomutt; chmod +s neomutt)
  }
 
  init_locale();
 
  umask(077);
 
  mutt_envlist_init(envp);
  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 (!STAILQ_EMPTY(&attach))
        mutt_list_insert_tail(&attach, mutt_str_dup(argv[optind]));
      else
        argv[nargc++] = argv[optind];
    }
 
    /* USE_NNTP 'g:G' */
    i = getopt(argc, argv, "+A:a:Bb:F:f:c:Dd:l:Ee:g:GH:i:hm:nOpQ:RSs:TvxyzZ");
    if (i != EOF)
    {
      switch (i)
      {
        case 'A':
          mutt_list_insert_tail(&alias_queries, mutt_str_dup(optarg));
          break;
        case 'a':
          mutt_list_insert_tail(&attach, mutt_str_dup(optarg));
          break;
        case 'B':
          batch_mode = true;
          break;
        case 'b':
          mutt_list_insert_tail(&bcc_list, mutt_str_dup(optarg));
          break;
        case 'c':
          mutt_list_insert_tail(&cc_list, mutt_str_dup(optarg));
          break;
        case 'D':
          dump_variables = true;
          break;
        case 'd':
          dlevel = optarg;
          break;
        case 'E':
          edit_infile = true;
          break;
        case 'e':
          mutt_list_insert_tail(&commands, mutt_str_dup(optarg));
          break;
        case 'F':
          mutt_list_insert_tail(&Muttrc, mutt_str_dup(optarg));
          break;
        case 'f':
          mutt_buffer_strcpy(&folder, optarg);
          explicit_folder = true;
          break;
#ifdef USE_NNTP
        case 'g': /* Specify a news server */
          cli_nntp = optarg;
          /* fallthrough */
        case 'G': /* List of newsgroups */
          flags |= MUTT_CLI_SELECT | MUTT_CLI_NEWS;
          break;
#endif
        case 'H':
          draft_file = optarg;
          break;
        case 'i':
          include_file = optarg;
          break;
        case 'l':
          dfile = optarg;
          break;
        case 'm':
          new_type = optarg;
          break;
        case 'n':
          flags |= MUTT_CLI_NOSYSRC;
          break;
        case 'O':
          one_liner = true;
          break;
        case 'p':
          sendflags |= SEND_POSTPONED;
          break;
        case 'Q':
          mutt_list_insert_tail(&queries, mutt_str_dup(optarg));
          break;
        case 'R':
          flags |= MUTT_CLI_RO; /* read-only mode */
          break;
        case 'S':
          hide_sensitive = true;
          break;
        case 's':
          subject = optarg;
          break;
#ifdef USE_DEBUG_PARSE_TEST
        case 'T':
          test_config = true;
          break;
#endif
        case 'v':
          version++;
          break;
        case 'y': /* My special hack mode */
          flags |= MUTT_CLI_SELECT;
          break;
        case 'Z':
          flags |= MUTT_CLI_MAILBOX | MUTT_CLI_IGNORE;
          break;
        case 'z':
          flags |= MUTT_CLI_IGNORE;
          break;
        default:
          OptNoCurses = true;
          if (usage())
            goto main_ok; // TEST03: neomutt -9
          else
            goto main_curses;
      }
    }
  }
 
  /* collapse remaining argv */
  while (optind < argc)
    argv[nargc++] = argv[optind++];
  optind = 1;
  argc = nargc;
 
  if (version > 0)
  {
    log_queue_flush(log_disp_terminal);
    bool done;
    if (version == 1)
      done = print_version(stdout);
    else
      done = print_copyright();
    OptNoCurses = true;
    if (done)
      goto main_ok; // TEST04: neomutt -v
    else
      goto main_curses;
  }
 
  mutt_str_replace(&Username, mutt_str_getenv("USER"));
  mutt_str_replace(&HomeDir, mutt_str_getenv("HOME"));
 
  cs = cs_new(500);
  if (!cs)
    goto main_curses;
 
  NeoMutt = neomutt_new(cs);
  init_config(cs);
  subjrx_init();
  attach_init();
  alternates_init();
 
#ifdef USE_DEBUG_NOTIFY
  notify_observer_add(NeoMutt->notify, NT_ALL, debug_all_observer, NULL);
#endif
 
  if (!get_user_info(cs))
    goto main_exit;
 
#ifdef USE_DEBUG_PARSE_TEST
  if (test_config)
  {
    cs_str_initial_set(cs, "from", "rich@flatcap.org", NULL);
    cs_str_reset(cs, "from", NULL);
    myvar_set("my_var", "foo");
    test_parse_set();
    goto main_ok;
  }
#endif
 
  reset_tilde(cs);
 
  if (dfile)
  {
    cs_str_initial_set(cs, "debug_file", dfile, NULL);
    cs_str_reset(cs, "debug_file", NULL);
  }
 
  if (dlevel)
  {
    short num = 0;
    if (!mutt_str_atos_full(dlevel, &num) || (num < LL_MESSAGE) || (num >= LL_MAX))
    {
      mutt_error(_("Error: value '%s' is invalid for -d"), dlevel);
      goto main_exit; // TEST07: neomutt -d xyz
    }
    cs_str_initial_set(cs, "debug_level", dlevel, NULL);
    cs_str_reset(cs, "debug_level", NULL);
  }
 
  mutt_log_prep();
  MuttLogger = log_disp_queue;
  log_translation();
 
  if (!STAILQ_EMPTY(&cc_list) || !STAILQ_EMPTY(&bcc_list))
  {
    e = email_new();
    e->env = mutt_env_new();
 
    struct ListNode *np = NULL;
    STAILQ_FOREACH(np, &bcc_list, entries)
    {
      mutt_addrlist_parse(&e->env->bcc, np->data);
    }
 
    STAILQ_FOREACH(np, &cc_list, entries)
    {
      mutt_addrlist_parse(&e->env->cc, np->data);
    }
 
    mutt_list_free(&bcc_list);
    mutt_list_free(&cc_list);
  }
 
  /* Check for a batch send. */
  if (!isatty(0) || !STAILQ_EMPTY(&queries) || !STAILQ_EMPTY(&alias_queries) ||
      dump_variables || batch_mode)
  {
    OptNoCurses = true;
    sendflags = SEND_BATCH;
    MuttLogger = log_disp_terminal;
    log_queue_flush(log_disp_terminal);
  }
 
  /* Check to make sure stdout is available in curses mode. */
  if (!OptNoCurses && !isatty(1))
    goto main_curses;
 
  /* Always create the mutt_windows because batch mode has some shared code
   * paths that end up referencing them. */
  rootwin_new();
 
  /* This must come before mutt_init() because curses needs to be started
   * before calling the init_pair() function to set the color scheme.  */
  if (!OptNoCurses)
  {
    int crc = start_curses();
    if (crc != 0)
      goto main_curses; // TEST08: can't test -- fake term?
 
    /* check whether terminal status is supported (must follow curses init) */
    TsSupported = mutt_ts_capability();
    rootwin_set_size(COLS, LINES);
  }
 
  /* set defaults and read init files */
  int rc2 = mutt_init(cs, flags & MUTT_CLI_NOSYSRC, &commands);
  if (rc2 != 0)
    goto main_curses;
 
  mutt_init_abort_key();
 
  /* The command line overrides the config */
  if (dlevel)
    cs_str_reset(cs, "debug_level", NULL);
  if (dfile)
    cs_str_reset(cs, "debug_file", NULL);
 
  if (mutt_log_start() < 0)
  {
    mutt_perror("log file");
    goto main_exit;
  }
 
#ifdef USE_NNTP
  {
    /* "$news_server" precedence: command line, config file, environment, system file */
    if (!cli_nntp)
      cli_nntp = cs_subset_string(NeoMutt->sub, "news_server");
 
    if (!cli_nntp)
      cli_nntp = mutt_str_getenv("NNTPSERVER");
 
    if (!cli_nntp)
    {
      char buf[1024] = { 0 };
      cli_nntp = mutt_file_read_keyword(SYSCONFDIR "/nntpserver", buf, sizeof(buf));
    }
 
    if (cli_nntp)
    {
      cs_str_initial_set(cs, "news_server", cli_nntp, NULL);
      cs_str_reset(cs, "news_server", NULL);
    }
  }
#endif
 
  /* Initialize crypto backends.  */
  crypt_init();
 
  if (new_type)
  {
    struct Buffer err = mutt_buffer_make(0);
    int r = cs_str_initial_set(cs, "mbox_type", new_type, &err);
    if (CSR_RESULT(r) != CSR_SUCCESS)
    {
      mutt_error(err.data);
      mutt_buffer_dealloc(&err);
      goto main_curses;
    }
    cs_str_reset(cs, "mbox_type", NULL);
  }
 
  if (!STAILQ_EMPTY(&queries))
  {
    rc = mutt_query_variables(&queries, one_liner);
    goto main_curses;
  }
 
  if (dump_variables)
  {
    ConfigDumpFlags cdflags = CS_DUMP_NO_FLAGS;
    if (hide_sensitive)
      cdflags |= CS_DUMP_HIDE_SENSITIVE;
    if (one_liner)
      cdflags |= CS_DUMP_SHOW_DOCS;
    dump_config(cs, cdflags, stdout);
    goto main_ok; // TEST18: neomutt -D
  }
 
  if (!STAILQ_EMPTY(&alias_queries))
  {
    rc = 0;
    for (; optind < argc; optind++)
      mutt_list_insert_tail(&alias_queries, mutt_str_dup(argv[optind]));
    struct ListNode *np = NULL;
    STAILQ_FOREACH(np, &alias_queries, entries)
    {
      struct AddressList *al = alias_lookup(np->data);
      if (al)
      {
        /* output in machine-readable form */
        mutt_addrlist_to_intl(al, NULL);
        mutt_addrlist_write_file(al, stdout, 0, false);
      }
      else
      {
        rc = 1;
        printf("%s\n", np->data); // TEST19: neomutt -A unknown
      }
    }
    mutt_list_free(&alias_queries);
    goto main_curses; // TEST20: neomutt -A alias
  }
 
  if (!OptNoCurses)
  {
    mutt_curses_set_color_by_id(MT_COLOR_NORMAL);
    clear();
    MuttLogger = log_disp_curses;
    log_queue_flush(log_disp_curses);
    log_queue_set_max_size(100);
  }
 
#ifdef USE_AUTOCRYPT
  /* Initialize autocrypt after curses messages are working,
   * because of the initial account setup screens. */
  const bool c_autocrypt = cs_subset_bool(NeoMutt->sub, "autocrypt");
  if (c_autocrypt)
    mutt_autocrypt_init(!(sendflags & SEND_BATCH));
#endif
 
  /* Create the `$folder` directory if it doesn't exist. */
  const char *const c_folder = cs_subset_string(NeoMutt->sub, "folder");
  if (!OptNoCurses && c_folder)
  {
    struct stat st = { 0 };
    struct Buffer *fpath = mutt_buffer_pool_get();
 
    mutt_buffer_strcpy(fpath, c_folder);
    mutt_buffer_expand_path(fpath);
    bool skip = false;
#ifdef USE_IMAP
    /* we're not connected yet - skip mail folder creation */
    skip |= (imap_path_probe(mutt_buffer_string(fpath), NULL) == MUTT_IMAP);
#endif
#ifdef USE_POP
    skip |= (pop_path_probe(mutt_buffer_string(fpath), NULL) == MUTT_POP);
#endif
#ifdef USE_NNTP
    skip |= (nntp_path_probe(mutt_buffer_string(fpath), NULL) == MUTT_NNTP);
#endif
    if (!skip && (stat(mutt_buffer_string(fpath), &st) == -1) && (errno == ENOENT))
    {
      char msg2[256];
      snprintf(msg2, sizeof(msg2), _("%s does not exist. Create it?"), c_folder);
      if (mutt_yesorno(msg2, MUTT_YES) == MUTT_YES)
      {
        if ((mkdir(mutt_buffer_string(fpath), 0700) == -1) && (errno != EEXIST))
          mutt_error(_("Can't create %s: %s"), c_folder, strerror(errno)); // TEST21: neomutt -n -F /dev/null (and ~/Mail doesn't exist)
      }
    }
    mutt_buffer_pool_release(&fpath);
  }
 
  if (batch_mode)
  {
    goto main_ok; // TEST22: neomutt -B
  }
 
  notify_observer_add(NeoMutt->notify, NT_CONFIG, main_hist_observer, NULL);
  notify_observer_add(NeoMutt->notify, NT_CONFIG, main_log_observer, NULL);
  notify_observer_add(NeoMutt->notify, NT_CONFIG, main_config_observer, NULL);
 
  if (sendflags & SEND_POSTPONED)
  {
    if (!OptNoCurses)
      mutt_flushinp();
    if (mutt_send_message(SEND_POSTPONED, NULL, NULL, NULL, NULL, NeoMutt->sub) == 0)
      rc = 0;
    // TEST23: neomutt -p (postponed message, cancel)
    // TEST24: neomutt -p (no postponed message)
    log_queue_empty();
    repeat_error = true;
    goto main_curses;
  }
  else if (subject || e || draft_file || include_file ||
           !STAILQ_EMPTY(&attach) || (optind < argc))
  {
    FILE *fp_in = NULL;
    FILE *fp_out = NULL;
    char *infile = NULL;
    char *bodytext = NULL;
    const char *bodyfile = NULL;
    int rv = 0;
 
    if (!OptNoCurses)
      mutt_flushinp();
 
    if (!e)
      e = email_new();
    if (!e->env)
      e->env = mutt_env_new();
 
    for (i = optind; i < argc; i++)
    {
      if (url_check_scheme(argv[i]) == U_MAILTO)
      {
        if (!mutt_parse_mailto(e->env, &bodytext, argv[i]))
        {
          mutt_error(_("Failed to parse mailto: link"));
          email_free(&e);
          goto main_curses; // TEST25: neomutt mailto:?
        }
      }
      else
        mutt_addrlist_parse(&e->env->to, argv[i]);
    }
 
    const bool c_auto_edit = cs_subset_bool(NeoMutt->sub, "auto_edit");
    if (!draft_file && c_auto_edit && TAILQ_EMPTY(&e->env->to) &&
        TAILQ_EMPTY(&e->env->cc))
    {
      mutt_error(_("No recipients specified"));
      email_free(&e);
      goto main_curses; // TEST26: neomutt -s test (with auto_edit=yes)
    }
 
    if (subject)
    {
      mutt_str_replace(&e->env->subject, subject);
    }
 
    if (draft_file)
    {
      infile = draft_file;
      include_file = NULL;
    }
    else if (include_file)
      infile = include_file;
    else
      edit_infile = false;
 
    if (infile || bodytext)
    {
      /* Prepare fp_in and expanded_infile. */
      if (infile)
      {
        if (mutt_str_equal("-", infile))
        {
          if (edit_infile)
          {
            mutt_error(_("Can't use -E flag with stdin"));
            email_free(&e);
            goto main_curses; // TEST27: neomutt -E -H -
          }
          fp_in = stdin;
        }
        else
        {
          mutt_buffer_strcpy(&expanded_infile, infile);
          mutt_buffer_expand_path(&expanded_infile);
          fp_in = fopen(mutt_buffer_string(&expanded_infile), "r");
          if (!fp_in)
          {
            mutt_perror(mutt_buffer_string(&expanded_infile));
            email_free(&e);
            goto main_curses; // TEST28: neomutt -E -H missing
          }
        }
      }
 
      /* Copy input to a tempfile, and re-point fp_in to the tempfile.
       * Note: stdin is always copied to a tempfile, ensuring draft_file
       * can stat and get the correct st_size below.  */
      if (!edit_infile)
      {
        mutt_buffer_mktemp(&tempfile);
 
        fp_out = mutt_file_fopen(mutt_buffer_string(&tempfile), "w");
        if (!fp_out)
        {
          mutt_file_fclose(&fp_in);
          mutt_perror(mutt_buffer_string(&tempfile));
          email_free(&e);
          goto main_curses; // TEST29: neomutt -H existing-file (where tmpdir=/path/to/FILE blocking tmpdir)
        }
        if (fp_in)
        {
          mutt_file_copy_stream(fp_in, fp_out);
          if (fp_in != stdin)
            mutt_file_fclose(&fp_in);
        }
        else if (bodytext)
          fputs(bodytext, fp_out);
        mutt_file_fclose(&fp_out);
 
        fp_in = fopen(mutt_buffer_string(&tempfile), "r");
        if (!fp_in)
        {
          mutt_perror(mutt_buffer_string(&tempfile));
          email_free(&e);
          goto main_curses; // TEST30: can't test
        }
      }
      /* If editing the infile, keep it around afterwards so
       * it doesn't get unlinked, and we can rebuild the draft_file */
      else
        sendflags |= SEND_NO_FREE_HEADER;
 
      /* Parse the draft_file into the full Email/Body structure.
       * Set SEND_DRAFT_FILE so mutt_send_message doesn't overwrite
       * our e->body.  */
      if (draft_file)
      {
        struct Envelope *opts_env = e->env;
        struct stat st = { 0 };
 
        sendflags |= SEND_DRAFT_FILE;
 
        /* Set up a tmp Email with just enough information so that
         * mutt_prepare_template() can parse the message in fp_in.  */
        struct Email *e_tmp = email_new();
        e_tmp->offset = 0;
        e_tmp->body = mutt_body_new();
        if (fstat(fileno(fp_in), &st) != 0)
        {
          mutt_perror(draft_file);
          email_free(&e);
          email_free(&e_tmp);
          goto main_curses; // TEST31: can't test
        }
        e_tmp->body->length = st.st_size;
 
        if (mutt_prepare_template(fp_in, NULL, e, e_tmp, false) < 0)
        {
          mutt_error(_("Can't parse message template: %s"), draft_file);
          email_free(&e);
          email_free(&e_tmp);
          goto main_curses;
        }
 
        /* Scan for neomutt header to set `$resume_draft_files` */
        struct ListNode *np = NULL, *tmp = NULL;
        STAILQ_FOREACH_SAFE(np, &e->env->userhdrs, entries, tmp)
        {
          if (mutt_istr_startswith(np->data, "X-Mutt-Resume-Draft:"))
          {
            const bool c_resume_edited_draft_files = cs_subset_bool(NeoMutt->sub, "resume_edited_draft_files");
            if (c_resume_edited_draft_files)
              cs_str_native_set(cs, "resume_draft_files", true, NULL);
 
            STAILQ_REMOVE(&e->env->userhdrs, np, ListNode, entries);
            FREE(&np->data);
            FREE(&np);
          }
        }
 
        mutt_addrlist_copy(&e->env->to, &opts_env->to, false);
        mutt_addrlist_copy(&e->env->cc, &opts_env->cc, false);
        mutt_addrlist_copy(&e->env->bcc, &opts_env->bcc, false);
        if (opts_env->subject)
          mutt_str_replace(&e->env->subject, opts_env->subject);
 
        mutt_env_free(&opts_env);
        email_free(&e_tmp);
      }
      /* Editing the include_file: pass it directly in.
       * Note that SEND_NO_FREE_HEADER is set above so it isn't unlinked.  */
      else if (edit_infile)
        bodyfile = mutt_buffer_string(&expanded_infile);
      // For bodytext and unedited include_file: use the tempfile.
      else
        bodyfile = mutt_buffer_string(&tempfile);
 
      mutt_file_fclose(&fp_in);
    }
 
    FREE(&bodytext);
 
    if (!STAILQ_EMPTY(&attach))
    {
      struct Body *b = e->body;
 
      while (b && b->next)
        b = b->next;
 
      struct ListNode *np = NULL;
      STAILQ_FOREACH(np, &attach, entries)
      {
        if (b)
        {
          b->next = mutt_make_file_attach(np->data, NeoMutt->sub);
          b = b->next;
        }
        else
        {
          b = mutt_make_file_attach(np->data, NeoMutt->sub);
          e->body = b;
        }
        if (!b)
        {
          mutt_error(_("%s: unable to attach file"), np->data);
          mutt_list_free(&attach);
          email_free(&e);
          goto main_curses; // TEST32: neomutt john@example.com -a missing
        }
      }
      mutt_list_free(&attach);
    }
 
    rv = mutt_send_message(sendflags, e, bodyfile, NULL, NULL, NeoMutt->sub);
    /* We WANT the "Mail sent." and any possible, later error */
    log_queue_empty();
    if (ErrorBufMessage)
      mutt_message("%s", ErrorBuf);
 
    if (edit_infile)
    {
      if (draft_file)
      {
        if (truncate(mutt_buffer_string(&expanded_infile), 0) == -1)
        {
          mutt_perror(mutt_buffer_string(&expanded_infile));
          email_free(&e);
          goto main_curses; // TEST33: neomutt -H read-only -s test john@example.com -E
        }
        fp_out = mutt_file_fopen(mutt_buffer_string(&expanded_infile), "a");
        if (!fp_out)
        {
          mutt_perror(mutt_buffer_string(&expanded_infile));
          email_free(&e);
          goto main_curses; // TEST34: can't test
        }
 
        /* If the message was sent or postponed, these will already
         * have been done.  */
        if (rv < 0)
        {
          if (e->body->next)
            e->body = mutt_make_multipart(e->body);
          mutt_encode_descriptions(e->body, true, NeoMutt->sub);
          mutt_prepare_envelope(e->env, false, NeoMutt->sub);
          mutt_env_to_intl(e->env, NULL, NULL);
        }
 
        const bool c_crypt_protected_headers_read = cs_subset_bool(NeoMutt->sub, "crypt_protected_headers_read");
        mutt_rfc822_write_header(fp_out, e->env, e->body, MUTT_WRITE_HEADER_POSTPONE, false,
                                 c_crypt_protected_headers_read &&
                                     mutt_should_hide_protected_subject(e),
                                 NeoMutt->sub);
        const bool c_resume_edited_draft_files = cs_subset_bool(NeoMutt->sub, "resume_edited_draft_files");
        if (c_resume_edited_draft_files)
          fprintf(fp_out, "X-Mutt-Resume-Draft: 1\n");
        fputc('\n', fp_out);
        if ((mutt_write_mime_body(e->body, fp_out, NeoMutt->sub) == -1))
        {
          mutt_file_fclose(&fp_out);
          email_free(&e);
          goto main_curses; // TEST35: can't test
        }
        mutt_file_fclose(&fp_out);
      }
 
      email_free(&e);
    }
 
    /* !edit_infile && draft_file will leave the tempfile around */
    if (!mutt_buffer_is_empty(&tempfile))
      unlink(mutt_buffer_string(&tempfile));
 
    rootwin_free();
 
    if (rv != 0)
      goto main_curses; // TEST36: neomutt -H existing -s test john@example.com -E (cancel sending)
  }
  else if (sendflags & SEND_BATCH)
  {
    /* This guards against invoking `neomutt < /dev/null` and accidentally
     * sending an email due to a my_hdr or other setting.  */
    mutt_error(_("No recipients specified"));
    goto main_curses;
  }
  else
  {
    if (flags & MUTT_CLI_MAILBOX)
    {
#ifdef USE_IMAP
      const bool c_imap_passive = cs_subset_bool(NeoMutt->sub, "imap_passive");
      cs_subset_str_native_set(NeoMutt->sub, "imap_passive", false, NULL);
#endif
      const CheckStatsFlags csflags = MUTT_MAILBOX_CHECK_FORCE | MUTT_MAILBOX_CHECK_IMMEDIATE;
      if (mutt_mailbox_check(NULL, csflags) == 0)
      {
        mutt_message(_("No mailbox with new mail"));
        goto main_curses; // TEST37: neomutt -Z (no new mail)
      }
      mutt_buffer_reset(&folder);
      mutt_mailbox_next(NULL, &folder);
#ifdef USE_IMAP
      cs_subset_str_native_set(NeoMutt->sub, "imap_passive", c_imap_passive, NULL);
#endif
    }
    else if (flags & MUTT_CLI_SELECT)
    {
#ifdef USE_NNTP
      if (flags & MUTT_CLI_NEWS)
      {
        const char *const c_news_server = cs_subset_string(NeoMutt->sub, "news_server");
        OptNews = true;
        struct Mailbox *m_cur = get_current_mailbox();
        CurrentNewsSrv = nntp_select_server(m_cur, c_news_server, false);
        if (!CurrentNewsSrv)
          goto main_curses; // TEST38: neomutt -G (unset news_server)
      }
      else
#endif
          if (TAILQ_EMPTY(&NeoMutt->accounts))
      {
        mutt_error(_("No incoming mailboxes defined"));
        goto main_curses; // TEST39: neomutt -n -F /dev/null -y
      }
      mutt_buffer_reset(&folder);
      struct Mailbox *m_cur = get_current_mailbox();
      mutt_buffer_select_file(&folder, MUTT_SEL_FOLDER | MUTT_SEL_MAILBOX, m_cur, NULL, NULL);
      if (mutt_buffer_is_empty(&folder))
      {
        goto main_ok; // TEST40: neomutt -y (quit selection)
      }
    }
 
    if (mutt_buffer_is_empty(&folder))
    {
      const char *const c_spool_file = cs_subset_string(NeoMutt->sub, "spool_file");
      if (c_spool_file)
      {
        // Check if `$spool_file` corresponds a mailboxes' description.
        struct Mailbox *m_desc = mailbox_find_name(c_spool_file);
        if (m_desc)
          mutt_buffer_strcpy(&folder, m_desc->realpath);
        else
          mutt_buffer_strcpy(&folder, c_spool_file);
      }
      else if (c_folder)
        mutt_buffer_strcpy(&folder, c_folder);
      /* else no folder */
    }
 
#ifdef USE_NNTP
    if (OptNews)
    {
      OptNews = false;
      mutt_buffer_alloc(&folder, PATH_MAX);
      nntp_expand_path(folder.data, folder.dsize, &CurrentNewsSrv->conn->account);
    }
    else
#endif
      mutt_buffer_expand_path(&folder);
 
    mutt_str_replace(&CurrentFolder, mutt_buffer_string(&folder));
    mutt_str_replace(&LastFolder, mutt_buffer_string(&folder));
 
    if (flags & MUTT_CLI_IGNORE)
    {
      /* check to see if there are any messages in the folder */
      switch (mx_path_is_empty(mutt_buffer_string(&folder)))
      {
        case -1:
          mutt_perror(mutt_buffer_string(&folder));
          goto main_curses; // TEST41: neomutt -z -f missing
        case 1:
          mutt_error(_("Mailbox is empty"));
          goto main_curses; // TEST42: neomutt -z -f /dev/null
      }
    }
 
    mutt_folder_hook(mutt_buffer_string(&folder), NULL);
    mutt_startup_shutdown_hook(MUTT_STARTUP_HOOK);
    mutt_debug(LL_NOTIFY, "NT_GLOBAL_STARTUP\n");
    notify_send(NeoMutt->notify, NT_GLOBAL, NT_GLOBAL_STARTUP, NULL);
 
    repeat_error = true;
    struct Mailbox *m = mx_resolve(mutt_buffer_string(&folder));
    const bool c_read_only = cs_subset_bool(NeoMutt->sub, "read_only");
    if (!mx_mbox_open(m, ((flags & MUTT_CLI_RO) || c_read_only) ? MUTT_READONLY : MUTT_OPEN_NO_FLAGS))
    {
      if (m->account)
        account_mailbox_remove(m->account, m);
 
      mailbox_free(&m);
      mutt_error(_("Unable to open mailbox %s"), mutt_buffer_string(&folder));
      repeat_error = false;
    }
    if (m || !explicit_folder)
    {
      struct MuttWindow *dlg = index_pager_init();
      dialog_push(dlg);
 
      mutt_curses_set_cursor(MUTT_CURSOR_INVISIBLE);
      m = mutt_index_menu(dlg, m);
      mutt_curses_set_cursor(MUTT_CURSOR_VISIBLE);
      mailbox_free(&m);
 
      dialog_pop();
      mutt_window_free(&dlg);
      log_queue_empty();
      repeat_error = false;
    }
#ifdef USE_IMAP
    imap_logout_all();
#endif
#ifdef USE_SASL_CYRUS
    mutt_sasl_done();
#endif
#ifdef USE_AUTOCRYPT
    mutt_autocrypt_cleanup();
#endif
    // TEST43: neomutt (no change to mailbox)
    // TEST44: neomutt (change mailbox)
  }
 
main_ok:
  rc = 0;
main_curses:
  mutt_endwin();
  mutt_unlink_temp_attachments();
  /* Repeat the last message to the user */
  if (repeat_error && ErrorBufMessage)
    puts(ErrorBuf);
main_exit:
  mutt_list_free(&commands);
  MuttLogger = log_disp_queue;
  mutt_buffer_dealloc(&folder);
  mutt_buffer_dealloc(&expanded_infile);
  mutt_buffer_dealloc(&tempfile);
  mutt_list_free(&queries);
  crypto_module_free();
  rootwin_free();
  mutt_buffer_pool_free();
  mutt_envlist_free();
  mutt_browser_cleanup();
  mutt_commands_cleanup();
  menu_cleanup();
  crypt_cleanup();
  mutt_opts_free();
  subjrx_free();
  attach_free();
  alternates_free();
  mutt_keys_free();
  myvarlist_free(&MyVars);
  mutt_prex_free();
  neomutt_free(&NeoMutt);
  cs_free(&cs);
  log_queue_flush(log_disp_terminal);
  log_queue_empty();
  mutt_log_stop();
  return rc;
}