Adding upstream version 2.41.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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3661 changed files with 2164106 additions and 0 deletions
240
include/ttyutils.h
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240
include/ttyutils.h
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/*
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* No copyright is claimed. This code is in the public domain; do with
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* it what you wish.
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*
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* Written by Karel Zak <kzak@redhat.com>
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*/
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#ifndef UTIL_LINUX_TTYUTILS_H
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#define UTIL_LINUX_TTYUTILS_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <termios.h>
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#include <limits.h>
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#ifdef HAVE_SYS_IOCTL_H
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#include <sys/ioctl.h>
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#endif
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#ifdef HAVE_SYS_TTYDEFAULTS_H
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#include <sys/ttydefaults.h>
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#endif
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#ifdef USE_TTY_GROUP
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# define TTY_MODE 0620
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#else
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# define TTY_MODE 0600
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#endif
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#define TTYGRPNAME "tty" /* name of group to own ttys */
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/* Some shorthands for control characters. */
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#define CTL(x) ((x) ^ 0100) /* Assumes ASCII dialect */
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#define CR CTL('M') /* carriage return */
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#define NL CTL('J') /* line feed */
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#define BS CTL('H') /* back space */
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#define DEL CTL('?') /* delete */
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/* Defaults for line-editing etc. characters; you may want to change these. */
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#define DEF_ERASE DEL /* default erase character */
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#define DEF_INTR CTL('C') /* default interrupt character */
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#define DEF_QUIT CTL('\\') /* default quit char */
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#define DEF_KILL CTL('U') /* default kill char */
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#define DEF_EOF CTL('D') /* default EOF char */
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#define DEF_EOL 0
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#define DEF_SWITCH 0 /* default switch char */
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/* Fallback for termios->c_cc[] */
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#ifndef CREPRINT
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# define CREPRINT ('r' & 037)
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#endif
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#ifndef CDISCARD
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# define CDISCARD ('o' & 037)
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#endif
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/* Default termios->iflag */
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#ifndef TTYDEF_IFLAG
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# define TTYDEF_IFLAG (BRKINT | ICRNL | IMAXBEL | IXON | IXANY)
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#endif
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/* Default termios->oflag */
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#ifndef TTYDEF_OFLAG
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# define TTYDEF_OFLAG (OPOST | ONLCR /*| OXTABS*/)
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#endif
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/* Default termios->lflag */
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#ifndef TTYDEF_LFLAG
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# define TTYDEF_LFLAG (ECHO | ICANON | ISIG | IEXTEN | ECHOE|ECHOKE|ECHOCTL)
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#endif
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/* Default termios->cflag */
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#ifndef TTYDEF_CFLAG
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# define TTYDEF_CFLAG (CREAD | CS8 | HUPCL)
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#endif
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/* Storage for things detected while the login name was read. */
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struct chardata {
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int erase; /* erase character */
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int kill; /* kill character */
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int eol; /* end-of-line character */
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int parity; /* what parity did we see */
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int capslock; /* upper case without lower case */
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};
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#define INIT_CHARDATA(ptr) do { \
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(ptr)->erase = DEF_ERASE; \
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(ptr)->kill = DEF_KILL; \
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(ptr)->eol = CR; \
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(ptr)->parity = 0; \
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(ptr)->capslock = 0; \
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} while (0)
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extern int get_terminal_dimension(int *cols, int *lines);
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extern int get_terminal_width(int default_width);
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extern int get_terminal_type(const char **type);
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extern char *get_terminal_default_type(const char *ttyname, int is_serial);
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extern int get_terminal_stdfd(void);
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extern int get_terminal_name(const char **path, const char **name,
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const char **number);
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#define UL_TTY_KEEPCFLAGS (1 << 1)
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#define UL_TTY_UTF8 (1 << 2)
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static inline void reset_virtual_console(struct termios *tp, int flags)
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{
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/* Use defaults of <sys/ttydefaults.h> for base settings */
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tp->c_iflag |= TTYDEF_IFLAG;
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tp->c_oflag |= TTYDEF_OFLAG;
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tp->c_lflag |= TTYDEF_LFLAG;
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if ((flags & UL_TTY_KEEPCFLAGS) == 0) {
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#ifdef CBAUD
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tp->c_lflag &= ~CBAUD;
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#endif
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tp->c_cflag |= (B38400 | TTYDEF_CFLAG);
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}
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/* Sane setting, allow eight bit characters, no carriage return delay
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* the same result as `stty sane cr0 pass8'
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*/
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#ifndef IUCLC
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# define IUCLC 0
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#endif
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#ifndef NL0
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# define NL0 0
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#endif
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#ifndef CR0
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# define CR0 0
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#endif
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#ifndef BS0
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# define BS0 0
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#endif
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#ifndef VT0
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# define VT0 0
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#endif
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#ifndef FF0
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# define FF0 0
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#endif
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#ifndef OLCUC
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# define OLCUC 0
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#endif
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#ifndef OFILL
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# define OFILL 0
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#endif
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#ifndef NLDLY
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# define NLDLY 0
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#endif
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#ifndef CRDLY
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# define CRDLY 0
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#endif
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#ifndef BSDLY
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# define BSDLY 0
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#endif
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#ifndef VTDLY
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# define VTDLY 0
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#endif
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#ifndef FFDLY
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# define FFDLY 0
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#endif
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#ifndef TAB0
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# define TAB0 0
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#endif
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#ifndef TABDLY
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# define TABDLY 0
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#endif
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tp->c_iflag |= (BRKINT | ICRNL | IMAXBEL);
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tp->c_iflag &= ~(IGNBRK | INLCR | IGNCR | IXOFF | IUCLC | IXANY | ISTRIP);
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tp->c_oflag |= (OPOST | ONLCR | NL0 | CR0 | TAB0 | BS0 | VT0 | FF0);
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tp->c_oflag &= ~(OLCUC | OCRNL | ONOCR | ONLRET | OFILL | \
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NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY);
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tp->c_lflag |= (ISIG | ICANON | IEXTEN | ECHO|ECHOE|ECHOK|ECHOKE|ECHOCTL);
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tp->c_lflag &= ~(ECHONL|ECHOPRT | NOFLSH | TOSTOP);
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if ((flags & UL_TTY_KEEPCFLAGS) == 0) {
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tp->c_cflag |= (CREAD | CS8 | HUPCL);
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tp->c_cflag &= ~(PARODD | PARENB);
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}
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#ifdef OFDEL
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tp->c_oflag &= ~OFDEL;
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#endif
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#ifdef XCASE
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tp->c_lflag &= ~XCASE;
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#endif
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#ifdef IUTF8
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if (flags & UL_TTY_UTF8)
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tp->c_iflag |= IUTF8; /* Set UTF-8 input flag */
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else
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tp->c_iflag &= ~IUTF8;
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#endif
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/* VTIME and VMIN can overlap with VEOF and VEOL since they are
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* only used for non-canonical mode. We just set the at the
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* beginning, so nothing bad should happen.
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*/
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tp->c_cc[VTIME] = 0;
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tp->c_cc[VMIN] = 1;
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tp->c_cc[VINTR] = CINTR;
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tp->c_cc[VQUIT] = CQUIT;
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tp->c_cc[VERASE] = CERASE; /* ASCII DEL (0177) */
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tp->c_cc[VKILL] = CKILL;
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tp->c_cc[VEOF] = CEOF;
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#ifdef VSWTC
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tp->c_cc[VSWTC] = _POSIX_VDISABLE;
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#elif defined(VSWTCH)
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tp->c_cc[VSWTCH] = _POSIX_VDISABLE;
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#endif
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tp->c_cc[VSTART] = CSTART;
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tp->c_cc[VSTOP] = CSTOP;
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tp->c_cc[VSUSP] = CSUSP;
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tp->c_cc[VEOL] = _POSIX_VDISABLE;
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tp->c_cc[VREPRINT] = CREPRINT;
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tp->c_cc[VDISCARD] = CDISCARD;
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tp->c_cc[VWERASE] = CWERASE;
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tp->c_cc[VLNEXT] = CLNEXT;
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tp->c_cc[VEOL2] = _POSIX_VDISABLE;
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}
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#define UL_OSC8 "\033]8" /* operating system command) */
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#define UL_ST "\033\\" /* string terminator */
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/* OSC8 hyperlink is composed from:
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*
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* UL_HYPERLINK_START UL_HYPERLINK_PARAMS <uri> UL_HYPERLINK_LINK <link-text> UL_HYPERLINK_END
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*
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* Alternatively, BEL (\a) can be used instead of ST.
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*/
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#define UL_HYPERLINK_START UL_OSC8
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#define UL_HYPERLINK_PARAMS ";;"
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#define UL_HYPERLINK_LINK UL_ST
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#define UL_HYPERLINK_END (UL_OSC8 ";;" UL_ST)
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static inline void ul_fputs_hyperlink(const char *uri, const char *link, FILE *out)
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{
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fputs(UL_HYPERLINK_START, out);
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fputs(UL_HYPERLINK_PARAMS, out);
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fputs(uri, out);
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fputs(UL_HYPERLINK_LINK, out);
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fputs(link, out);
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fputs(UL_HYPERLINK_END, out);
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}
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#endif /* UTIL_LINUX_TTYUTILS_H */
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