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/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <sys/types.h>
#include "macro.h"
#include "time-util.h"
#define ANSI_RED "\x1B[0;31m"
#define ANSI_GREEN "\x1B[0;32m"
#define ANSI_UNDERLINE "\x1B[0;4m"
#define ANSI_HIGHLIGHT "\x1B[0;1;39m"
#define ANSI_HIGHLIGHT_RED "\x1B[0;1;31m"
#define ANSI_HIGHLIGHT_GREEN "\x1B[0;1;32m"
#define ANSI_HIGHLIGHT_YELLOW "\x1B[0;1;33m"
#define ANSI_HIGHLIGHT_BLUE "\x1B[0;1;34m"
#define ANSI_HIGHLIGHT_UNDERLINE "\x1B[0;1;4m"
#define ANSI_HIGHLIGHT_RED_UNDERLINE "\x1B[0;1;4;31m"
#define ANSI_HIGHLIGHT_GREEN_UNDERLINE "\x1B[0;1;4;32m"
#define ANSI_HIGHLIGHT_YELLOW_UNDERLINE "\x1B[0;1;4;33m"
#define ANSI_HIGHLIGHT_BLUE_UNDERLINE "\x1B[0;1;4;34m"
#define ANSI_NORMAL "\x1B[0m"
#define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"
/* Set cursor to top left corner and clear screen */
#define ANSI_HOME_CLEAR "\x1B[H\x1B[2J"
int reset_terminal_fd(int fd, bool switch_to_text);
int reset_terminal(const char *name);
int open_terminal(const char *name, int mode);
/* Flags for tweaking the way we become the controlling process of a terminal. */
typedef enum AcquireTerminalFlags {
/* Try to become the controlling process of the TTY. If we can't return -EPERM. */
ACQUIRE_TERMINAL_TRY = 0,
/* Tell the kernel to forcibly make us the controlling process of the TTY. Returns -EPERM if the kernel doesn't allow that. */
ACQUIRE_TERMINAL_FORCE = 1,
/* If we can't become the controlling process of the TTY right-away, then wait until we can. */
ACQUIRE_TERMINAL_WAIT = 2,
/* Pick one of the above, and then OR this flag in, in order to request permissive behaviour, if we can't become controlling process then don't mind */
ACQUIRE_TERMINAL_PERMISSIVE = 4,
} AcquireTerminalFlags;
int acquire_terminal(const char *name, AcquireTerminalFlags flags, usec_t timeout);
int release_terminal(void);
int terminal_vhangup_fd(int fd);
int terminal_vhangup(const char *name);
int chvt(int vt);
int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl);
int ask_char(char *ret, const char *replies, const char *text, ...) _printf_(3, 4);
int ask_string(char **ret, const char *text, ...) _printf_(2, 3);
int vt_disallocate(const char *name);
int resolve_dev_console(char **ret);
int get_kernel_consoles(char ***ret);
bool tty_is_vc(const char *tty);
bool tty_is_vc_resolve(const char *tty);
bool tty_is_console(const char *tty) _pure_;
int vtnr_from_tty(const char *tty);
const char *default_term_for_tty(const char *tty);
int make_stdio(int fd);
int make_null_stdio(void);
int make_console_stdio(void);
int fd_columns(int fd);
unsigned columns(void);
int fd_lines(int fd);
unsigned lines(void);
void columns_lines_cache_reset(int _unused_ signum);
void reset_terminal_feature_caches(void);
bool on_tty(void);
bool terminal_is_dumb(void);
bool colors_enabled(void);
bool underline_enabled(void);
bool dev_console_colors_enabled(void);
#define DEFINE_ANSI_FUNC(name, NAME) \
static inline const char *ansi_##name(void) { \
return colors_enabled() ? ANSI_##NAME : ""; \
} \
struct __useless_struct_to_allow_trailing_semicolon__
#define DEFINE_ANSI_FUNC_UNDERLINE(name, NAME, REPLACEMENT) \
static inline const char *ansi_##name(void) { \
return underline_enabled() ? ANSI_##NAME : \
colors_enabled() ? ANSI_##REPLACEMENT : ""; \
} \
struct __useless_struct_to_allow_trailing_semicolon__
DEFINE_ANSI_FUNC(highlight, HIGHLIGHT);
DEFINE_ANSI_FUNC(highlight_red, HIGHLIGHT_RED);
DEFINE_ANSI_FUNC(highlight_green, HIGHLIGHT_GREEN);
DEFINE_ANSI_FUNC(highlight_yellow, HIGHLIGHT_YELLOW);
DEFINE_ANSI_FUNC(highlight_blue, HIGHLIGHT_BLUE);
DEFINE_ANSI_FUNC(normal, NORMAL);
DEFINE_ANSI_FUNC_UNDERLINE(underline, UNDERLINE, NORMAL);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_underline, HIGHLIGHT_UNDERLINE, HIGHLIGHT);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_red_underline, HIGHLIGHT_RED_UNDERLINE, HIGHLIGHT_RED);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_green_underline, HIGHLIGHT_GREEN_UNDERLINE, HIGHLIGHT_GREEN);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_yellow_underline, HIGHLIGHT_YELLOW_UNDERLINE, HIGHLIGHT_YELLOW);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_blue_underline, HIGHLIGHT_BLUE_UNDERLINE, HIGHLIGHT_BLUE);
int get_ctty_devnr(pid_t pid, dev_t *d);
int get_ctty(pid_t, dev_t *_devnr, char **r);
int getttyname_malloc(int fd, char **r);
int getttyname_harder(int fd, char **r);
int ptsname_malloc(int fd, char **ret);
int ptsname_namespace(int pty, char **ret);
int openpt_in_namespace(pid_t pid, int flags);
int open_terminal_in_namespace(pid_t pid, const char *name, int mode);
int vt_default_utf8(void);
int vt_reset_keyboard(int fd);
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