/* SPDX-License-Identifier: LGPL-2.1+ */ #pragma once #include #include #include #include #include #include "macro.h" #include "time-util.h" /* Regular colors */ #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_GREY "\x1B[0;38;5;245m" /* Bold/highlighted */ #define ANSI_HIGHLIGHT_RED "\x1B[0;1;31m" #define ANSI_HIGHLIGHT_GREEN "\x1B[0;1;32m" #define ANSI_HIGHLIGHT_YELLOW "\x1B[0;1;38;5;185m" #define ANSI_HIGHLIGHT_BLUE "\x1B[0;1;34m" #define ANSI_HIGHLIGHT_MAGENTA "\x1B[0;1;35m" #define ANSI_HIGHLIGHT_GREY "\x1B[0;1;38;5;245m" #define ANSI_HIGHLIGHT_YELLOW4 "\x1B[0;1;38;5;100m" /* Underlined */ #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_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" /* 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; 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); 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 : ""; \ } #define DEFINE_ANSI_FUNC_UNDERLINE(name, NAME, REPLACEMENT) \ static inline const char *ansi_##name(void) { \ return underline_enabled() ? ANSI_##NAME : \ colors_enabled() ? ANSI_##REPLACEMENT : ""; \ } DEFINE_ANSI_FUNC(normal, NORMAL); DEFINE_ANSI_FUNC(highlight, HIGHLIGHT); 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(grey, GREY); 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(highlight_magenta, HIGHLIGHT_MAGENTA); DEFINE_ANSI_FUNC(highlight_grey, HIGHLIGHT_GREY); 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); DEFINE_ANSI_FUNC_UNDERLINE(highlight_magenta_underline, HIGHLIGHT_MAGENTA_UNDERLINE, HIGHLIGHT_MAGENTA); DEFINE_ANSI_FUNC_UNDERLINE(highlight_grey_underline, HIGHLIGHT_GREY_UNDERLINE, HIGHLIGHT_GREY); 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_verify_kbmode(int fd); 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