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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
288a74cc RC |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010 Lennart Poettering | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
288a74cc | 23 | #include <stdarg.h> |
71d35b6b | 24 | #include <stdbool.h> |
288a74cc | 25 | #include <stdio.h> |
11c3a366 | 26 | #include <sys/types.h> |
288a74cc RC |
27 | |
28 | #include "macro.h" | |
29 | #include "time-util.h" | |
30 | ||
1fc464f6 LP |
31 | #define ANSI_RED "\x1B[0;31m" |
32 | #define ANSI_GREEN "\x1B[0;32m" | |
33 | #define ANSI_UNDERLINE "\x1B[0;4m" | |
34 | #define ANSI_HIGHLIGHT "\x1B[0;1;39m" | |
35 | #define ANSI_HIGHLIGHT_RED "\x1B[0;1;31m" | |
36 | #define ANSI_HIGHLIGHT_GREEN "\x1B[0;1;32m" | |
37 | #define ANSI_HIGHLIGHT_YELLOW "\x1B[0;1;33m" | |
38 | #define ANSI_HIGHLIGHT_BLUE "\x1B[0;1;34m" | |
39 | #define ANSI_HIGHLIGHT_UNDERLINE "\x1B[0;1;4m" | |
16484a8a ZJS |
40 | #define ANSI_HIGHLIGHT_RED_UNDERLINE "\x1B[0;1;4;31m" |
41 | #define ANSI_HIGHLIGHT_GREEN_UNDERLINE "\x1B[0;1;4;32m" | |
42 | #define ANSI_HIGHLIGHT_YELLOW_UNDERLINE "\x1B[0;1;4;33m" | |
43 | #define ANSI_HIGHLIGHT_BLUE_UNDERLINE "\x1B[0;1;4;34m" | |
1fc464f6 LP |
44 | #define ANSI_NORMAL "\x1B[0m" |
45 | ||
288a74cc RC |
46 | #define ANSI_ERASE_TO_END_OF_LINE "\x1B[K" |
47 | ||
1fc464f6 LP |
48 | /* Set cursor to top left corner and clear screen */ |
49 | #define ANSI_HOME_CLEAR "\x1B[H\x1B[2J" | |
50 | ||
288a74cc RC |
51 | int reset_terminal_fd(int fd, bool switch_to_text); |
52 | int reset_terminal(const char *name); | |
53 | ||
54 | int open_terminal(const char *name, int mode); | |
8854d795 LP |
55 | |
56 | /* Flags for tweaking the way we become the controlling process of a terminal. */ | |
57 | typedef enum AcquireTerminalFlags { | |
58 | /* Try to become the controlling process of the TTY. If we can't return -EPERM. */ | |
59 | ACQUIRE_TERMINAL_TRY = 0, | |
60 | ||
61 | /* Tell the kernel to forcibly make us the controlling process of the TTY. Returns -EPERM if the kernel doesn't allow that. */ | |
62 | ACQUIRE_TERMINAL_FORCE = 1, | |
63 | ||
64 | /* If we can't become the controlling process of the TTY right-away, then wait until we can. */ | |
65 | ACQUIRE_TERMINAL_WAIT = 2, | |
66 | ||
67 | /* 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 */ | |
68 | ACQUIRE_TERMINAL_PERMISSIVE = 4, | |
69 | } AcquireTerminalFlags; | |
70 | ||
71 | int acquire_terminal(const char *name, AcquireTerminalFlags flags, usec_t timeout); | |
288a74cc RC |
72 | int release_terminal(void); |
73 | ||
74 | int terminal_vhangup_fd(int fd); | |
75 | int terminal_vhangup(const char *name); | |
76 | ||
77 | int chvt(int vt); | |
78 | ||
79 | int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl); | |
80 | int ask_char(char *ret, const char *replies, const char *text, ...) _printf_(3, 4); | |
81 | int ask_string(char **ret, const char *text, ...) _printf_(2, 3); | |
82 | ||
83 | int vt_disallocate(const char *name); | |
84 | ||
85 | char *resolve_dev_console(char **active); | |
bef41af2 | 86 | int get_kernel_consoles(char ***ret); |
288a74cc RC |
87 | bool tty_is_vc(const char *tty); |
88 | bool tty_is_vc_resolve(const char *tty); | |
89 | bool tty_is_console(const char *tty) _pure_; | |
90 | int vtnr_from_tty(const char *tty); | |
91 | const char *default_term_for_tty(const char *tty); | |
92 | ||
288a74cc RC |
93 | int make_stdio(int fd); |
94 | int make_null_stdio(void); | |
95 | int make_console_stdio(void); | |
96 | ||
288a74cc RC |
97 | int fd_columns(int fd); |
98 | unsigned columns(void); | |
99 | int fd_lines(int fd); | |
100 | unsigned lines(void); | |
c6063244 | 101 | |
288a74cc | 102 | void columns_lines_cache_reset(int _unused_ signum); |
c6063244 | 103 | void reset_terminal_feature_caches(void); |
288a74cc RC |
104 | |
105 | bool on_tty(void); | |
ac96418b | 106 | bool terminal_is_dumb(void); |
40c9fe4c | 107 | bool colors_enabled(void); |
526664f6 | 108 | bool underline_enabled(void); |
c2b32159 | 109 | bool dev_console_colors_enabled(void); |
288a74cc | 110 | |
5c98198f ZJS |
111 | #define DEFINE_ANSI_FUNC(name, NAME) \ |
112 | static inline const char *ansi_##name(void) { \ | |
113 | return colors_enabled() ? ANSI_##NAME : ""; \ | |
114 | } \ | |
115 | struct __useless_struct_to_allow_trailing_semicolon__ | |
116 | ||
526664f6 LP |
117 | #define DEFINE_ANSI_FUNC_UNDERLINE(name, NAME, REPLACEMENT) \ |
118 | static inline const char *ansi_##name(void) { \ | |
119 | return underline_enabled() ? ANSI_##NAME : \ | |
120 | colors_enabled() ? ANSI_##REPLACEMENT : ""; \ | |
121 | } \ | |
122 | struct __useless_struct_to_allow_trailing_semicolon__ | |
123 | ||
124 | ||
5c98198f | 125 | DEFINE_ANSI_FUNC(highlight, HIGHLIGHT); |
5c98198f ZJS |
126 | DEFINE_ANSI_FUNC(highlight_red, HIGHLIGHT_RED); |
127 | DEFINE_ANSI_FUNC(highlight_green, HIGHLIGHT_GREEN); | |
128 | DEFINE_ANSI_FUNC(highlight_yellow, HIGHLIGHT_YELLOW); | |
129 | DEFINE_ANSI_FUNC(highlight_blue, HIGHLIGHT_BLUE); | |
5c98198f | 130 | DEFINE_ANSI_FUNC(normal, NORMAL); |
288a74cc | 131 | |
526664f6 LP |
132 | DEFINE_ANSI_FUNC_UNDERLINE(underline, UNDERLINE, NORMAL); |
133 | DEFINE_ANSI_FUNC_UNDERLINE(highlight_underline, HIGHLIGHT_UNDERLINE, HIGHLIGHT); | |
134 | DEFINE_ANSI_FUNC_UNDERLINE(highlight_red_underline, HIGHLIGHT_RED_UNDERLINE, HIGHLIGHT_RED); | |
135 | DEFINE_ANSI_FUNC_UNDERLINE(highlight_green_underline, HIGHLIGHT_GREEN_UNDERLINE, HIGHLIGHT_GREEN); | |
136 | DEFINE_ANSI_FUNC_UNDERLINE(highlight_yellow_underline, HIGHLIGHT_YELLOW_UNDERLINE, HIGHLIGHT_YELLOW); | |
137 | DEFINE_ANSI_FUNC_UNDERLINE(highlight_blue_underline, HIGHLIGHT_BLUE_UNDERLINE, HIGHLIGHT_BLUE); | |
138 | ||
288a74cc RC |
139 | int get_ctty_devnr(pid_t pid, dev_t *d); |
140 | int get_ctty(pid_t, dev_t *_devnr, char **r); | |
141 | ||
142 | int getttyname_malloc(int fd, char **r); | |
143 | int getttyname_harder(int fd, char **r); | |
a07c35c3 | 144 | |
66cb2fde | 145 | int ptsname_malloc(int fd, char **ret); |
a07c35c3 | 146 | int ptsname_namespace(int pty, char **ret); |
66cb2fde LP |
147 | |
148 | int openpt_in_namespace(pid_t pid, int flags); | |
40e1f4ea | 149 | int open_terminal_in_namespace(pid_t pid, const char *name, int mode); |
c83f349c LP |
150 | |
151 | int vt_default_utf8(void); | |
152 | int vt_reset_keyboard(int fd); |