mc/lib/global.h

/** \file global.h
 *  \brief Header: %global definitions for compatibility
 *
 *  This file should be included after all system includes and before all local includes.
 */

#ifndef MC_GLOBAL_H
#define MC_GLOBAL_H

#if defined(HAVE_STRING_H)
#include <string.h>
   /* An ANSI string.h and pre-ANSI memory.h might conflict */
#elif defined(HAVE_MEMORY_H)
#include <memory.h>
#else
#include <strings.h>
    /* memory and strings.h conflict on other systems */
#endif /* !STDC_HEADERS & !HAVE_STRING_H */

#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif

/* for O_* macros */
#include <fcntl.h>

/* for sig_atomic_t */
#include <signal.h>

#ifdef HAVE_FUNC_ATTRIBUTE_FALLTHROUGH
#define MC_FALLTHROUGH __attribute__((fallthrough))
#else
#define MC_FALLTHROUGH
#endif

/*** typedefs(not structures) and defined constants **********************************************/

/* The O_BINARY definition was taken from gettext */
#if !defined O_BINARY && defined _O_BINARY
  /* For MSC-compatible compilers.  */
#define O_BINARY _O_BINARY
#endif
#ifdef __BEOS__
  /* BeOS 5 has O_BINARY, but is has no effect.  */
#undef O_BINARY
#endif
/* On reasonable systems, binary I/O is the default.  */
#ifndef O_BINARY
#define O_BINARY 0
#endif

/* Replacement for O_NONBLOCK */
#ifndef O_NONBLOCK
#ifdef O_NDELAY                 /* SYSV */
#define O_NONBLOCK O_NDELAY
#else /* BSD */
#define O_NONBLOCK FNDELAY
#endif /* !O_NDELAY */
#endif /* !O_NONBLOCK */

#if defined(__QNX__) && !defined(__QNXNTO__)
/* exec*() from <process.h> */
#include <unix.h>
#endif

#include <glib.h>
#include "glibcompat.h"

/* For SMB VFS only */
#ifndef __GNUC__
#define __attribute__(x)
#endif

/* Solaris9 doesn't have PRIXMAX */
#ifndef PRIXMAX
#define PRIXMAX PRIxMAX
#endif

#ifdef ENABLE_NLS
#include <libintl.h>
#define _(String) gettext (String)
#ifdef gettext_noop
#define N_(String) gettext_noop (String)
#else
#define N_(String) (String)
#endif
#else /* Stubs that do something close enough.  */
#define textdomain(String) 1
#define gettext(String) (String)
#define ngettext(String1,String2,Num) (((Num) == 1) ? (String1) : (String2))
#define dgettext(Domain,Message) (Message)
#define dcgettext(Domain,Message,Type) (Message)
#define bindtextdomain(Domain,Directory) 1
#define _(String) (String)
#define N_(String) (String)
#endif /* !ENABLE_NLS */

#include "fs.h"
#include "shell.h"
#include "mcconfig.h"

#ifdef USE_MAINTAINER_MODE
#include "lib/logging.h"
#endif

/* Just for keeping Your's brains from invention a proper size of the buffer :-) */
#define BUF_10K 10240L
#define BUF_8K  8192L
#define BUF_4K  4096L
#define BUF_1K  1024L

#define BUF_LARGE  BUF_1K
#define BUF_MEDIUM 512
#define BUF_SMALL 128
#define BUF_TINY 64

/* ESC_CHAR is defined in /usr/include/langinfo.h in some systems */
#ifdef ESC_CHAR
#undef ESC_CHAR
#endif
/* AIX compiler doesn't understand '\e' */
#define ESC_CHAR '\033'
#define ESC_STR  "\033"

/* OS specific defines */
#define PATH_SEP '/'
#define PATH_SEP_STR "/"
#define IS_PATH_SEP(c) ((c) == PATH_SEP)
#define PATH_ENV_SEP ':'
#define TMPDIR_DEFAULT "/tmp"
#define SCRIPT_SUFFIX ""
#define get_default_editor() "vi"
#define OS_SORT_CASE_SENSITIVE_DEFAULT TRUE
#define UTF8_CHAR_LEN 6

/* struct stat members */
#ifdef __APPLE__
#define st_atim st_atimespec
#define st_ctim st_ctimespec
#define st_mtim st_mtimespec
#endif

/* Used to distinguish between a normal MC termination and */
/* one caused by typing 'exit' or 'logout' in the subshell */
#define SUBSHELL_EXIT 128

#define MC_ERROR g_quark_from_static_string (PACKAGE)

#define DEFAULT_CHARSET "ASCII"

#include "lib/timer.h"          /* mc_timer_t */

/*** enums ***************************************************************************************/

/* run mode and params */
typedef enum
{
    MC_RUN_FULL = 0,
    MC_RUN_EDITOR,
    MC_RUN_VIEWER,
    MC_RUN_DIFFVIEWER
} mc_run_mode_t;

/*** structures declarations (and typedefs of structures)*****************************************/

typedef struct
{
    mc_run_mode_t mc_run_mode;
    /* global timer */
    mc_timer_t *timer;
    /* Used so that widgets know if they are being destroyed or shut down */
    gboolean midnight_shutdown;

    /* sysconfig_dir: Area for default settings from maintainers of distributuves
       default is /etc/mc or may be defined by MC_DATADIR */
    char *sysconfig_dir;
    /* share_data_dir: Area for default settings from developers */
    char *share_data_dir;

    mc_config_t *main_config;
    mc_config_t *panels_config;

#ifdef HAVE_CHARSET
    /* Numbers of (file I/O) and (input/display) codepages. -1 if not selected */
    int source_codepage;
    int display_codepage;
#else
    /* If true, allow characters in the range 160-255 */
    gboolean eight_bit_clean;
    /*
     * If true, also allow characters in the range 128-159.
     * This is reported to break on many terminals (xterm, qansi-m).
     */
    gboolean full_eight_bits;
#endif                          /* !HAVE_CHARSET */
    /*
     * If utf-8 terminal utf8_display = TRUE
     * Display bits set UTF-8
     */
    gboolean utf8_display;

    /* Set if the nice message (hint) bar is visible */
    int message_visible;
    /* Set if the nice and useful keybar is visible */
    int keybar_visible;

#ifdef ENABLE_BACKGROUND
    /* If true, this is a background process */
    gboolean we_are_background;
#endif                          /* ENABLE_BACKGROUND */

    struct
    {
        /* Asks for confirmation before clean up of history */
        gboolean confirm_history_cleanup;

        /* Set if you want the possible completions dialog for the first time */
        gboolean show_all_if_ambiguous;

        /* Ugly hack in order to distinguish between left and right panel in menubar */
        /* Set if the command is being run from the "Right" menu */
        gboolean is_right;      /* If the selected menu was the right */
    } widget;

    /* The user's shell */
    mc_shell_t *shell;

    struct
    {
        /* Use the specified skin */
        char *skin;

        char *setup_color_string;
        char *term_color_string;
        char *color_terminal_string;
        /* colors specified on the command line: they override any other setting */
        char *command_line_colors;

#ifndef LINUX_CONS_SAVER_C
        /* Used only in mc, not in cons.saver */
        char console_flag;
#endif                          /* !LINUX_CONS_SAVER_C */
        /* If using a subshell for evaluating commands this is true */
        gboolean use_subshell;

#ifdef ENABLE_SUBSHELL
        /* File descriptors of the pseudoterminal used by the subshell */
        int subshell_pty;
#endif                          /* !ENABLE_SUBSHELL */

        /* This flag is set by xterm detection routine in function main() */
        /* It is used by function toggle_subshell() */
        gboolean xterm_flag;

        /* disable x11 support */
        gboolean disable_x11;

        /* For slow terminals */
        /* If true lines are shown by spaces */
        gboolean slow_terminal;

        /* Set to force black and white display at program startup */
        gboolean disable_colors;

        /* If true use +, -, | for line drawing */
        gboolean ugly_line_drawing;

        /* Tries to use old highlight mouse tracking */
        gboolean old_mouse;

        /* If true, use + and \ keys normally and select/unselect do if M-+ / M-\.
           and M-- and keypad + / - */
        gboolean alternate_plus_minus;
    } tty;

    struct
    {
        /* Set when cd symlink following is desirable (bash mode) */
        gboolean cd_symlinks;

        /* Preallocate space before file copying */
        gboolean preallocate_space;

    } vfs;
} mc_global_t;

/*** global variables defined in .c file *********************************************************/

extern mc_global_t mc_global;

/*** declarations of public functions ************************************************************/

/*** inline functions ****************************************************************************/
#endif