[thirdparty/systemd.git] / src / basic / terminal-util.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include <sys/types.h>

#include "macro.h"
#include "time-util.h"

/* Regular colors */
#define ANSI_BLACK   "\x1B[0;30m" /* Some type of grey usually. */
#define ANSI_RED     "\x1B[0;31m"
#define ANSI_GREEN   "\x1B[0;32m"
#define ANSI_YELLOW  "\x1B[0;33m"
#define ANSI_BLUE    "\x1B[0;34m"
#define ANSI_MAGENTA "\x1B[0;35m"
#define ANSI_CYAN    "\x1B[0;36m"
#define ANSI_WHITE   "\x1B[0;37m" /* This is actually rendered as light grey, legible even on a white
                                   * background. See ANSI_HIGHLIGHT_WHITE for real white. */

#define ANSI_BRIGHT_BLACK   "\x1B[0;90m"
#define ANSI_BRIGHT_RED     "\x1B[0;91m"
#define ANSI_BRIGHT_GREEN   "\x1B[0;92m"
#define ANSI_BRIGHT_YELLOW  "\x1B[0;93m"
#define ANSI_BRIGHT_BLUE    "\x1B[0;94m"
#define ANSI_BRIGHT_MAGENTA "\x1B[0;95m"
#define ANSI_BRIGHT_CYAN    "\x1B[0;96m"
#define ANSI_BRIGHT_WHITE   "\x1B[0;97m"

#define ANSI_GREY    "\x1B[0;38;5;245m"

/* Bold/highlighted */
#define ANSI_HIGHLIGHT_BLACK    "\x1B[0;1;30m"
#define ANSI_HIGHLIGHT_RED      "\x1B[0;1;31m"
#define ANSI_HIGHLIGHT_GREEN    "\x1B[0;1;32m"
#define _ANSI_HIGHLIGHT_YELLOW  "\x1B[0;1;33m" /* This yellow is currently not displayed well by some terminals */
#define ANSI_HIGHLIGHT_BLUE     "\x1B[0;1;34m"
#define ANSI_HIGHLIGHT_MAGENTA  "\x1B[0;1;35m"
#define ANSI_HIGHLIGHT_CYAN     "\x1B[0;1;36m"
#define ANSI_HIGHLIGHT_WHITE    "\x1B[0;1;37m"
#define ANSI_HIGHLIGHT_YELLOW4  "\x1B[0;1;38;5;100m"
#define ANSI_HIGHLIGHT_KHAKI3   "\x1B[0;1;38;5;185m"
#define ANSI_HIGHLIGHT_GREY     "\x1B[0;1;38;5;245m"

#define ANSI_HIGHLIGHT_YELLOW   ANSI_HIGHLIGHT_KHAKI3 /* Replacement yellow that is more legible */

/* Underlined */
#define ANSI_GREY_UNDERLINE              "\x1B[0;4;38;5;245m"
#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;38;5;185m"
#define ANSI_HIGHLIGHT_BLUE_UNDERLINE    "\x1B[0;1;4;34m"
#define ANSI_HIGHLIGHT_MAGENTA_UNDERLINE "\x1B[0;1;4;35m"
#define ANSI_HIGHLIGHT_GREY_UNDERLINE    "\x1B[0;1;4;38;5;245m"

/* Other ANSI codes */
#define ANSI_UNDERLINE "\x1B[0;4m"
#define ANSI_HIGHLIGHT "\x1B[0;1;39m"
#define ANSI_HIGHLIGHT_UNDERLINE "\x1B[0;1;4m"

/* Fallback colors: 256 -> 16 */
#define ANSI_HIGHLIGHT_GREY_FALLBACK   "\x1B[0;1;90m"
#define ANSI_HIGHLIGHT_YELLOW_FALLBACK "\x1B[0;1;33m"

/* Reset/clear ANSI styles */
#define ANSI_NORMAL "\x1B[0m"

/* Erase characters until the end of the line */
#define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"

/* Move cursor up one line */
#define ANSI_REVERSE_LINEFEED "\x1BM"

/* 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 = 1 << 2,
} AcquireTerminalFlags;

/* Limits the use of ANSI colors to a subset. */
typedef enum ColorMode {
        /* No colors, monochrome output. */
        COLOR_OFF = 0,

        /* All colors, no restrictions. */
        COLOR_ON  = 1,

        /* Only the base 16 colors. */
        COLOR_16  = 16,

        /* Only 256 colors. */
        COLOR_256 = 256,

        _COLOR_INVALID = -EINVAL,
} ColorMode;

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_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);
ColorMode get_color_mode(void);
bool underline_enabled(void);
bool dev_console_colors_enabled(void);

static inline bool colors_enabled(void) {

        /* Returns true if colors are considered supported on our stdout. */
        return get_color_mode() != COLOR_OFF;
}

#define DEFINE_ANSI_FUNC(name, NAME)                            \
        static inline const char *ansi_##name(void) {           \
                return colors_enabled() ? ANSI_##NAME : "";     \
        }

#define DEFINE_ANSI_FUNC_256(name, NAME, FALLBACK)             \
        static inline const char *ansi_##name(void) {          \
                switch (get_color_mode()) {                    \
                        case COLOR_OFF: return "";             \
                        case COLOR_16: return ANSI_##FALLBACK; \
                        default : return ANSI_##NAME;          \
                }                                              \
        }

#define DEFINE_ANSI_FUNC_UNDERLINE(name, NAME)                            \
        static inline const char *ansi_##name(void) {                     \
                return underline_enabled() ? ANSI_##NAME ANSI_UNDERLINE : \
                        colors_enabled() ? ANSI_##NAME : "";              \
        }


#define DEFINE_ANSI_FUNC_UNDERLINE_256(name, NAME, FALLBACK)                                                           \
        static inline const char *ansi_##name(void) {                                                                  \
                switch (get_color_mode()) {                                                                            \
                        case COLOR_OFF: return "";                                                                     \
                        case COLOR_16: return underline_enabled() ? ANSI_##FALLBACK ANSI_UNDERLINE : ANSI_##FALLBACK;  \
                        default : return underline_enabled() ? ANSI_##NAME ANSI_UNDERLINE: ANSI_##NAME;                \
                }                                                                                                      \
        }

DEFINE_ANSI_FUNC(normal,            NORMAL);
DEFINE_ANSI_FUNC(highlight,         HIGHLIGHT);
DEFINE_ANSI_FUNC(black,             BLACK);
DEFINE_ANSI_FUNC(red,               RED);
DEFINE_ANSI_FUNC(green,             GREEN);
DEFINE_ANSI_FUNC(yellow,            YELLOW);
DEFINE_ANSI_FUNC(blue,              BLUE);
DEFINE_ANSI_FUNC(magenta,           MAGENTA);
DEFINE_ANSI_FUNC(cyan,              CYAN);
DEFINE_ANSI_FUNC(white,             WHITE);
DEFINE_ANSI_FUNC_256(grey,          GREY, BRIGHT_BLACK);

DEFINE_ANSI_FUNC(bright_black,      BRIGHT_BLACK);
DEFINE_ANSI_FUNC(bright_red,        BRIGHT_RED);
DEFINE_ANSI_FUNC(bright_green,      BRIGHT_GREEN);
DEFINE_ANSI_FUNC(bright_yellow,     BRIGHT_YELLOW);
DEFINE_ANSI_FUNC(bright_blue,       BRIGHT_BLUE);
DEFINE_ANSI_FUNC(bright_magenta,    BRIGHT_MAGENTA);
DEFINE_ANSI_FUNC(bright_cyan,       BRIGHT_CYAN);
DEFINE_ANSI_FUNC(bright_white,      BRIGHT_WHITE);

DEFINE_ANSI_FUNC(highlight_black,       HIGHLIGHT_BLACK);
DEFINE_ANSI_FUNC(highlight_red,         HIGHLIGHT_RED);
DEFINE_ANSI_FUNC(highlight_green,       HIGHLIGHT_GREEN);
DEFINE_ANSI_FUNC_256(highlight_yellow,  HIGHLIGHT_YELLOW, HIGHLIGHT_YELLOW_FALLBACK);
DEFINE_ANSI_FUNC_256(highlight_yellow4, HIGHLIGHT_YELLOW4, HIGHLIGHT_YELLOW_FALLBACK);
DEFINE_ANSI_FUNC(highlight_blue,        HIGHLIGHT_BLUE);
DEFINE_ANSI_FUNC(highlight_magenta,     HIGHLIGHT_MAGENTA);
DEFINE_ANSI_FUNC(highlight_cyan,        HIGHLIGHT_CYAN);
DEFINE_ANSI_FUNC_256(highlight_grey,    HIGHLIGHT_GREY, HIGHLIGHT_GREY_FALLBACK);
DEFINE_ANSI_FUNC(highlight_white,       HIGHLIGHT_WHITE);

static inline const char* _ansi_highlight_yellow(void) {
        return colors_enabled() ? _ANSI_HIGHLIGHT_YELLOW : "";
}

DEFINE_ANSI_FUNC_UNDERLINE(underline,                       NORMAL);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_underline,             HIGHLIGHT);
DEFINE_ANSI_FUNC_UNDERLINE_256(grey_underline,              GREY, BRIGHT_BLACK);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_red_underline,         HIGHLIGHT_RED);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_green_underline,       HIGHLIGHT_GREEN);
DEFINE_ANSI_FUNC_UNDERLINE_256(highlight_yellow_underline,  HIGHLIGHT_YELLOW, HIGHLIGHT_YELLOW_FALLBACK);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_blue_underline,        HIGHLIGHT_BLUE);
DEFINE_ANSI_FUNC_UNDERLINE(highlight_magenta_underline,     HIGHLIGHT_MAGENTA);
DEFINE_ANSI_FUNC_UNDERLINE_256(highlight_grey_underline,    HIGHLIGHT_GREY, HIGHLIGHT_GREY_FALLBACK);

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 openpt_allocate(int flags, char **ret_slave);
int openpt_allocate_in_namespace(pid_t pid, int flags, char **ret_slave);
int open_terminal_in_namespace(pid_t pid, const char *name, int mode);

int vt_default_utf8(void);
int vt_reset_keyboard(int fd);
int vt_restore(int fd);
int vt_release(int fd, bool restore_vt);

void get_log_colors(int priority, const char **on, const char **off, const char **highlight);

/* This assumes there is a 'tty' group */
#define TTY_MODE 0620
Commit	Line	Data
db9ecf05	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
288a74cc RC	2	#pragma once
288a74cc RC	3
288a74cc	4	#include <stdarg.h>
71d35b6b	5	#include <stdbool.h>
288a74cc	6	#include <stdio.h>
37b8d2f6	7	#include <syslog.h>
11c3a366	8	#include <sys/types.h>
288a74cc RC	9
	10	#include "macro.h"
	11	#include "time-util.h"
	12
6d1d8f66	13	/* Regular colors */
66bb0059	14	#define ANSI_BLACK "\x1B[0;30m" /* Some type of grey usually. */
6d1d8f66 AR	15	#define ANSI_RED "\x1B[0;31m"
	16	#define ANSI_GREEN "\x1B[0;32m"
	17	#define ANSI_YELLOW "\x1B[0;33m"
	18	#define ANSI_BLUE "\x1B[0;34m"
	19	#define ANSI_MAGENTA "\x1B[0;35m"
66bb0059 ZJS	20	#define ANSI_CYAN "\x1B[0;36m"
	21	#define ANSI_WHITE "\x1B[0;37m" /* This is actually rendered as light grey, legible even on a white
	22	* background. See ANSI_HIGHLIGHT_WHITE for real white. */
	23
	24	#define ANSI_BRIGHT_BLACK "\x1B[0;90m"
	25	#define ANSI_BRIGHT_RED "\x1B[0;91m"
	26	#define ANSI_BRIGHT_GREEN "\x1B[0;92m"
	27	#define ANSI_BRIGHT_YELLOW "\x1B[0;93m"
	28	#define ANSI_BRIGHT_BLUE "\x1B[0;94m"
	29	#define ANSI_BRIGHT_MAGENTA "\x1B[0;95m"
	30	#define ANSI_BRIGHT_CYAN "\x1B[0;96m"
	31	#define ANSI_BRIGHT_WHITE "\x1B[0;97m"
	32
bb40c125	33	#define ANSI_GREY "\x1B[0;38;5;245m"
6d1d8f66 AR	34
6d1d8f66 AR	35	/* Bold/highlighted */
5ee27251 ZJS	36	#define ANSI_HIGHLIGHT_BLACK "\x1B[0;1;30m"
	37	#define ANSI_HIGHLIGHT_RED "\x1B[0;1;31m"
	38	#define ANSI_HIGHLIGHT_GREEN "\x1B[0;1;32m"
	39	#define _ANSI_HIGHLIGHT_YELLOW "\x1B[0;1;33m" /* This yellow is currently not displayed well by some terminals */
	40	#define ANSI_HIGHLIGHT_BLUE "\x1B[0;1;34m"
	41	#define ANSI_HIGHLIGHT_MAGENTA "\x1B[0;1;35m"
	42	#define ANSI_HIGHLIGHT_CYAN "\x1B[0;1;36m"
	43	#define ANSI_HIGHLIGHT_WHITE "\x1B[0;1;37m"
	44	#define ANSI_HIGHLIGHT_YELLOW4 "\x1B[0;1;38;5;100m"
	45	#define ANSI_HIGHLIGHT_KHAKI3 "\x1B[0;1;38;5;185m"
	46	#define ANSI_HIGHLIGHT_GREY "\x1B[0;1;38;5;245m"
	47
	48	#define ANSI_HIGHLIGHT_YELLOW ANSI_HIGHLIGHT_KHAKI3 /* Replacement yellow that is more legible */
6d1d8f66 AR	49
6d1d8f66 AR	50	/* Underlined */
45d82c3f	51	#define ANSI_GREY_UNDERLINE "\x1B[0;4;38;5;245m"
6d1d8f66 AR	52	#define ANSI_HIGHLIGHT_RED_UNDERLINE "\x1B[0;1;4;31m"
6d1d8f66 AR	53	#define ANSI_HIGHLIGHT_GREEN_UNDERLINE "\x1B[0;1;4;32m"
a851ba07	54	#define ANSI_HIGHLIGHT_YELLOW_UNDERLINE "\x1B[0;1;4;38;5;185m"
6d1d8f66 AR	55	#define ANSI_HIGHLIGHT_BLUE_UNDERLINE "\x1B[0;1;4;34m"
6d1d8f66 AR	56	#define ANSI_HIGHLIGHT_MAGENTA_UNDERLINE "\x1B[0;1;4;35m"
1530bf25	57	#define ANSI_HIGHLIGHT_GREY_UNDERLINE "\x1B[0;1;4;38;5;245m"
6d1d8f66 AR	58
6d1d8f66 AR	59	/* Other ANSI codes */
1fc464f6 LP	60	#define ANSI_UNDERLINE "\x1B[0;4m"
1fc464f6 LP	61	#define ANSI_HIGHLIGHT "\x1B[0;1;39m"
1fc464f6	62	#define ANSI_HIGHLIGHT_UNDERLINE "\x1B[0;1;4m"
6d1d8f66	63
c4fea19a MGR	64	/* Fallback colors: 256 -> 16 */
	65	#define ANSI_HIGHLIGHT_GREY_FALLBACK "\x1B[0;1;90m"
	66	#define ANSI_HIGHLIGHT_YELLOW_FALLBACK "\x1B[0;1;33m"
	67
6d1d8f66	68	/* Reset/clear ANSI styles */
1fc464f6 LP	69	#define ANSI_NORMAL "\x1B[0m"
1fc464f6 LP	70
6d1d8f66	71	/* Erase characters until the end of the line */
288a74cc RC	72	#define ANSI_ERASE_TO_END_OF_LINE "\x1B[K"
288a74cc RC	73
82554307 T	74	/* Move cursor up one line */
	75	#define ANSI_REVERSE_LINEFEED "\x1BM"
	76
1fc464f6 LP	77	/* Set cursor to top left corner and clear screen */
	78	#define ANSI_HOME_CLEAR "\x1B[H\x1B[2J"
	79
288a74cc RC	80	int reset_terminal_fd(int fd, bool switch_to_text);
	81	int reset_terminal(const char *name);
	82
	83	int open_terminal(const char *name, int mode);
8854d795 LP	84
	85	/* Flags for tweaking the way we become the controlling process of a terminal. */
	86	typedef enum AcquireTerminalFlags {
	87	/* Try to become the controlling process of the TTY. If we can't return -EPERM. */
ef31828d	88	ACQUIRE_TERMINAL_TRY = 0,
8854d795 LP	89
8854d795 LP	90	/* Tell the kernel to forcibly make us the controlling process of the TTY. Returns -EPERM if the kernel doesn't allow that. */
ef31828d	91	ACQUIRE_TERMINAL_FORCE = 1,
8854d795 LP	92
8854d795 LP	93	/* If we can't become the controlling process of the TTY right-away, then wait until we can. */
ef31828d	94	ACQUIRE_TERMINAL_WAIT = 2,
8854d795 LP	95
8854d795 LP	96	/* 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 */
ef31828d	97	ACQUIRE_TERMINAL_PERMISSIVE = 1 << 2,
8854d795 LP	98	} AcquireTerminalFlags;
8854d795 LP	99
c4fea19a MGR	100	/* Limits the use of ANSI colors to a subset. */
	101	typedef enum ColorMode {
	102	/* No colors, monochrome output. */
	103	COLOR_OFF = 0,
	104
	105	/* All colors, no restrictions. */
	106	COLOR_ON = 1,
	107
	108	/* Only the base 16 colors. */
	109	COLOR_16 = 16,
	110
	111	/* Only 256 colors. */
	112	COLOR_256 = 256,
	113
2d93c20e	114	_COLOR_INVALID = -EINVAL,
c4fea19a MGR	115	} ColorMode;
c4fea19a MGR	116
8854d795	117	int acquire_terminal(const char *name, AcquireTerminalFlags flags, usec_t timeout);
288a74cc RC	118	int release_terminal(void);
	119
	120	int terminal_vhangup_fd(int fd);
	121	int terminal_vhangup(const char *name);
	122
	123	int chvt(int vt);
	124
	125	int read_one_char(FILE f, char ret, usec_t timeout, bool *need_nl);
	126	int ask_char(char ret, const char replies, const char *text, ...) _printf_(3, 4);
	127	int ask_string(char *ret, const char text, ...) _printf_(2, 3);
	128
	129	int vt_disallocate(const char *name);
	130
7b912648	131	int resolve_dev_console(char **ret);
bef41af2	132	int get_kernel_consoles(char ***ret);
288a74cc RC	133	bool tty_is_vc(const char *tty);
	134	bool tty_is_vc_resolve(const char *tty);
	135	bool tty_is_console(const char *tty) _pure_;
	136	int vtnr_from_tty(const char *tty);
	137	const char default_term_for_tty(const char tty);
	138
288a74cc RC	139	int make_console_stdio(void);
288a74cc RC	140
288a74cc RC	141	int fd_columns(int fd);
	142	unsigned columns(void);
	143	int fd_lines(int fd);
	144	unsigned lines(void);
c6063244	145
288a74cc	146	void columns_lines_cache_reset(int _unused_ signum);
c6063244	147	void reset_terminal_feature_caches(void);
288a74cc RC	148
288a74cc RC	149	bool on_tty(void);
ac96418b	150	bool terminal_is_dumb(void);
c4fea19a	151	ColorMode get_color_mode(void);
526664f6	152	bool underline_enabled(void);
c2b32159	153	bool dev_console_colors_enabled(void);
288a74cc	154
dcdd9030 MGR	155	static inline bool colors_enabled(void) {
	156
	157	/* Returns true if colors are considered supported on our stdout. */
	158	return get_color_mode() != COLOR_OFF;
	159	}
	160
5c98198f ZJS	161	#define DEFINE_ANSI_FUNC(name, NAME) \
	162	static inline const char *ansi_##name(void) { \
	163	return colors_enabled() ? ANSI_##NAME : ""; \
f6a8265b	164	}
5c98198f	165
c4fea19a MGR	166	#define DEFINE_ANSI_FUNC_256(name, NAME, FALLBACK) \
	167	static inline const char *ansi_##name(void) { \
	168	switch (get_color_mode()) { \
	169	case COLOR_OFF: return ""; \
	170	case COLOR_16: return ANSI_##FALLBACK; \
	171	default : return ANSI_##NAME; \
	172	} \
	173	}
	174
	175	#define DEFINE_ANSI_FUNC_UNDERLINE(name, NAME) \
	176	static inline const char *ansi_##name(void) { \
	177	return underline_enabled() ? ANSI_##NAME ANSI_UNDERLINE : \
	178	colors_enabled() ? ANSI_##NAME : ""; \
	179	}
	180
	181
	182	#define DEFINE_ANSI_FUNC_UNDERLINE_256(name, NAME, FALLBACK) \
	183	static inline const char *ansi_##name(void) { \
	184	switch (get_color_mode()) { \
	185	case COLOR_OFF: return ""; \
	186	case COLOR_16: return underline_enabled() ? ANSI_##FALLBACK ANSI_UNDERLINE : ANSI_##FALLBACK; \
	187	default : return underline_enabled() ? ANSI_##NAME ANSI_UNDERLINE: ANSI_##NAME; \
	188	} \
f6a8265b	189	}
526664f6	190
003aa3e0 LP	191	DEFINE_ANSI_FUNC(normal, NORMAL);
003aa3e0 LP	192	DEFINE_ANSI_FUNC(highlight, HIGHLIGHT);
66bb0059	193	DEFINE_ANSI_FUNC(black, BLACK);
003aa3e0 LP	194	DEFINE_ANSI_FUNC(red, RED);
	195	DEFINE_ANSI_FUNC(green, GREEN);
	196	DEFINE_ANSI_FUNC(yellow, YELLOW);
	197	DEFINE_ANSI_FUNC(blue, BLUE);
	198	DEFINE_ANSI_FUNC(magenta, MAGENTA);
66bb0059 ZJS	199	DEFINE_ANSI_FUNC(cyan, CYAN);
66bb0059 ZJS	200	DEFINE_ANSI_FUNC(white, WHITE);
c4fea19a	201	DEFINE_ANSI_FUNC_256(grey, GREY, BRIGHT_BLACK);
66bb0059 ZJS	202
	203	DEFINE_ANSI_FUNC(bright_black, BRIGHT_BLACK);
	204	DEFINE_ANSI_FUNC(bright_red, BRIGHT_RED);
	205	DEFINE_ANSI_FUNC(bright_green, BRIGHT_GREEN);
	206	DEFINE_ANSI_FUNC(bright_yellow, BRIGHT_YELLOW);
	207	DEFINE_ANSI_FUNC(bright_blue, BRIGHT_BLUE);
	208	DEFINE_ANSI_FUNC(bright_magenta, BRIGHT_MAGENTA);
	209	DEFINE_ANSI_FUNC(bright_cyan, BRIGHT_CYAN);
	210	DEFINE_ANSI_FUNC(bright_white, BRIGHT_WHITE);
	211
c4fea19a MGR	212	DEFINE_ANSI_FUNC(highlight_black, HIGHLIGHT_BLACK);
	213	DEFINE_ANSI_FUNC(highlight_red, HIGHLIGHT_RED);
	214	DEFINE_ANSI_FUNC(highlight_green, HIGHLIGHT_GREEN);
	215	DEFINE_ANSI_FUNC_256(highlight_yellow, HIGHLIGHT_YELLOW, HIGHLIGHT_YELLOW_FALLBACK);
25e4608b	216	DEFINE_ANSI_FUNC_256(highlight_yellow4, HIGHLIGHT_YELLOW4, HIGHLIGHT_YELLOW_FALLBACK);
c4fea19a MGR	217	DEFINE_ANSI_FUNC(highlight_blue, HIGHLIGHT_BLUE);
	218	DEFINE_ANSI_FUNC(highlight_magenta, HIGHLIGHT_MAGENTA);
	219	DEFINE_ANSI_FUNC(highlight_cyan, HIGHLIGHT_CYAN);
	220	DEFINE_ANSI_FUNC_256(highlight_grey, HIGHLIGHT_GREY, HIGHLIGHT_GREY_FALLBACK);
	221	DEFINE_ANSI_FUNC(highlight_white, HIGHLIGHT_WHITE);
003aa3e0	222
5ee27251 ZJS	223	static inline const char* _ansi_highlight_yellow(void) {
	224	return colors_enabled() ? _ANSI_HIGHLIGHT_YELLOW : "";
	225	}
	226
c4fea19a MGR	227	DEFINE_ANSI_FUNC_UNDERLINE(underline, NORMAL);
	228	DEFINE_ANSI_FUNC_UNDERLINE(highlight_underline, HIGHLIGHT);
	229	DEFINE_ANSI_FUNC_UNDERLINE_256(grey_underline, GREY, BRIGHT_BLACK);
	230	DEFINE_ANSI_FUNC_UNDERLINE(highlight_red_underline, HIGHLIGHT_RED);
	231	DEFINE_ANSI_FUNC_UNDERLINE(highlight_green_underline, HIGHLIGHT_GREEN);
	232	DEFINE_ANSI_FUNC_UNDERLINE_256(highlight_yellow_underline, HIGHLIGHT_YELLOW, HIGHLIGHT_YELLOW_FALLBACK);
	233	DEFINE_ANSI_FUNC_UNDERLINE(highlight_blue_underline, HIGHLIGHT_BLUE);
	234	DEFINE_ANSI_FUNC_UNDERLINE(highlight_magenta_underline, HIGHLIGHT_MAGENTA);
	235	DEFINE_ANSI_FUNC_UNDERLINE_256(highlight_grey_underline, HIGHLIGHT_GREY, HIGHLIGHT_GREY_FALLBACK);
526664f6	236
288a74cc RC	237	int get_ctty_devnr(pid_t pid, dev_t *d);
	238	int get_ctty(pid_t, dev_t _devnr, char *r);
	239
	240	int getttyname_malloc(int fd, char **r);
	241	int getttyname_harder(int fd, char **r);
a07c35c3	242
66cb2fde	243	int ptsname_malloc(int fd, char **ret);
66cb2fde	244
ae1d13db FB	245	int openpt_allocate(int flags, char **ret_slave);
ae1d13db FB	246	int openpt_allocate_in_namespace(pid_t pid, int flags, char **ret_slave);
40e1f4ea	247	int open_terminal_in_namespace(pid_t pid, const char *name, int mode);
c83f349c LP	248
	249	int vt_default_utf8(void);
	250	int vt_reset_keyboard(int fd);
6179ede1	251	int vt_restore(int fd);
27dafac9	252	int vt_release(int fd, bool restore_vt);
37b8d2f6 ZJS	253
37b8d2f6 ZJS	254	void get_log_colors(int priority, const char on, const char off, const char **highlight);
1802d5f2 LP	255
	256	/* This assumes there is a 'tty' group */
	257	#define TTY_MODE 0620