stty: style fixes
This commit is contained in:
Denis Vlasenko
parent
7eab79acc5
commit
9efb070dcb
193
coreutils/stty.c
193
coreutils/stty.c
@ -23,17 +23,14 @@
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#include "busybox.h"
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#define STREQ(a, b) (strcmp ((a), (b)) == 0)
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#ifndef _POSIX_VDISABLE
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# define _POSIX_VDISABLE ((unsigned char) 0)
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#endif
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#define Control(c) ((c) & 0x1f)
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/* Canonical values for control characters. */
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/* Canonical values for control characters */
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#ifndef CINTR
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# define CINTR Control ('c')
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# define CINTR Control('c')
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#endif
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#ifndef CQUIT
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# define CQUIT 28
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@ -42,27 +39,27 @@
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# define CERASE 127
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#endif
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#ifndef CKILL
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# define CKILL Control ('u')
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# define CKILL Control('u')
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#endif
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#ifndef CEOF
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# define CEOF Control ('d')
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# define CEOF Control('d')
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#endif
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#ifndef CEOL
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# define CEOL _POSIX_VDISABLE
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#endif
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#ifndef CSTART
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# define CSTART Control ('q')
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# define CSTART Control('q')
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#endif
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#ifndef CSTOP
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# define CSTOP Control ('s')
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# define CSTOP Control('s')
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#endif
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#ifndef CSUSP
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# define CSUSP Control ('z')
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# define CSUSP Control('z')
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#endif
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#if defined(VEOL2) && !defined(CEOL2)
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# define CEOL2 _POSIX_VDISABLE
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#endif
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/* ISC renamed swtch to susp for termios, but we'll accept either name. */
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/* ISC renamed swtch to susp for termios, but we'll accept either name */
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#if defined(VSUSP) && !defined(VSWTCH)
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# define VSWTCH VSUSP
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# define CSWTCH CSUSP
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@ -82,19 +79,19 @@
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# define VWERASE VWERSE
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#endif
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#if defined(VDSUSP) && !defined (CDSUSP)
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# define CDSUSP Control ('y')
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# define CDSUSP Control('y')
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#endif
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#if !defined(VREPRINT) && defined(VRPRNT) /* Irix 4.0.5 */
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# define VREPRINT VRPRNT
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#endif
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#if defined(VREPRINT) && !defined(CRPRNT)
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# define CRPRNT Control ('r')
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# define CRPRNT Control('r')
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#endif
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#if defined(VWERASE) && !defined(CWERASE)
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# define CWERASE Control ('w')
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# define CWERASE Control('w')
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#endif
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#if defined(VLNEXT) && !defined(CLNEXT)
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# define CLNEXT Control ('v')
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# define CLNEXT Control('v')
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#endif
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#if defined(VDISCARD) && !defined(VFLUSHO)
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# define VFLUSHO VDISCARD
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@ -112,25 +109,24 @@
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# define ECHOKE CRTKIL
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#endif
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#if defined(VFLUSHO) && !defined(CFLUSHO)
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# define CFLUSHO Control ('o')
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# define CFLUSHO Control('o')
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#endif
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#if defined(VSTATUS) && !defined(CSTATUS)
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# define CSTATUS Control ('t')
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# define CSTATUS Control('t')
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#endif
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/* Which speeds to set. */
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/* Which speeds to set */
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enum speed_setting {
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input_speed, output_speed, both_speeds
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};
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/* Which member(s) of `struct termios' a mode uses. */
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/* Which member(s) of `struct termios' a mode uses */
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enum mode_type {
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/* Do NOT change the order or values, as mode_type_flag()
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* depends on them. */
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* depends on them */
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control, input, output, local, combination
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};
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static const char evenp [] = "evenp";
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static const char raw [] = "raw";
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static const char stty_min [] = "min";
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@ -154,22 +150,22 @@ static const char stty_LCASE[] = "LCASE";
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static const char stty_crt [] = "crt";
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static const char stty_dec [] = "dec";
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/* Flags for `struct mode_info' */
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#define SANE_SET 1 /* Set in `sane' mode */
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#define SANE_UNSET 2 /* Unset in `sane' mode */
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#define REV 4 /* Can be turned off by prepending `-' */
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#define OMIT 8 /* Don't display value */
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/* Flags for `struct mode_info'. */
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#define SANE_SET 1 /* Set in `sane' mode. */
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#define SANE_UNSET 2 /* Unset in `sane' mode. */
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#define REV 4 /* Can be turned off by prepending `-'. */
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#define OMIT 8 /* Don't display value. */
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/* Each mode. */
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/* Each mode */
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struct mode_info {
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const char *name; /* Name given on command line. */
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const char *name; /* Name given on command line */
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/* enum mode_type type; */
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char type; /* Which structure element to change. */
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char flags; /* Setting and display options. */
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unsigned short mask; /* Other bits to turn off for this mode. */
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unsigned long bits; /* Bits to set for this mode. */
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char type; /* Which structure element to change */
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char flags; /* Setting and display options */
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unsigned short mask; /* Other bits to turn off for this mode */
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unsigned long bits; /* Bits to set for this mode */
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};
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#define EMT(t) ((enum mode_type)(t))
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#define MI_ENTRY(N,T,F,B,M) { N, T, F, M, B }
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@ -308,7 +304,7 @@ static const struct mode_info mode_info[] = {
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#ifdef IXANY
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MI_ENTRY(decctlq, combination, REV | OMIT, 0, 0 ),
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#endif
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#if defined (TABDLY) || defined (OXTABS)
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#if defined(TABDLY) || defined(OXTABS)
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MI_ENTRY(stty_tabs, combination, REV | OMIT, 0, 0 ),
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#endif
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#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
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@ -320,18 +316,17 @@ static const struct mode_info mode_info[] = {
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};
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enum {
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NUM_mode_info =
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(sizeof(mode_info) / sizeof(struct mode_info))
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NUM_mode_info = (sizeof(mode_info) / sizeof(mode_info[0]))
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};
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/* Control character settings. */
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/* Control character settings */
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struct control_info {
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const char *name; /* Name given on command line. */
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unsigned char saneval; /* Value to set for `stty sane'. */
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unsigned char offset; /* Offset in c_cc. */
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const char *name; /* Name given on command line */
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unsigned char saneval; /* Value to set for `stty sane' */
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unsigned char offset; /* Offset in c_cc */
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};
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/* Control characters. */
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/* Control characters */
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static const struct control_info control_info[] = {
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{"intr", CINTR, VINTR},
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@ -367,17 +362,20 @@ static const struct control_info control_info[] = {
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#ifdef VSTATUS
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{"status", CSTATUS, VSTATUS},
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#endif
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/* These must be last because of the display routines. */
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/* These must be last because of the display routines */
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{stty_min, 1, VMIN},
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{stty_time, 0, VTIME},
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};
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enum {
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NUM_control_info =
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(sizeof(control_info) / sizeof(struct control_info))
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NUM_control_info = (sizeof(control_info) / sizeof(control_info[0]))
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};
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#define EMT(t) ((enum mode_type)(t))
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/* The width of the screen, for output wrapping */
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static int max_col;
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/* Current position, to know when to wrap */
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static int current_col;
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static const char * visible(unsigned int ch);
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static int recover_mode(const char *arg, struct termios *mode);
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@ -385,11 +383,11 @@ static int screen_columns(void);
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static void set_mode(const struct mode_info *info,
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int reversed, struct termios *mode);
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static speed_t string_to_baud(const char *arg);
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static tcflag_t* mode_type_flag(enum mode_type type, struct termios *mode);
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static void display_all(struct termios *mode);
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static void display_changed(struct termios *mode);
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static void display_recoverable(struct termios *mode);
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static void display_speed(struct termios *mode, int fancy);
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static tcflag_t* mode_type_flag(enum mode_type type, const struct termios *mode);
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static void display_all(const struct termios *mode);
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static void display_changed(const struct termios *mode);
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static void display_recoverable(const struct termios *mode);
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static void display_speed(const struct termios *mode, int fancy);
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static void display_window_size(int fancy);
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static void sane_mode(struct termios *mode);
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static void set_control_char(const struct control_info *info,
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@ -405,21 +403,19 @@ static ATTRIBUTE_NORETURN void perror_on_device(const char *fmt)
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bb_perror_msg_and_die(fmt, device_name);
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}
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/* The width of the screen, for output wrapping. */
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static int max_col;
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/* Current position, to know when to wrap. */
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static int current_col;
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static ATTRIBUTE_ALWAYS_INLINE int streq(const char *a, const char *b)
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{
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return strcmp(a, b) == 0;
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}
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/* Print format string MESSAGE and optional args.
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Wrap to next line first if it won't fit.
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Print a space first unless MESSAGE will start a new line. */
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Print a space first unless MESSAGE will start a new line */
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static void wrapf(const char *message, ...)
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{
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va_list args;
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char buf[1024]; /* Plenty long for our needs. */
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char buf[1024]; /* Plenty long for our needs */
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int buflen;
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va_start(args, message);
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@ -449,7 +445,7 @@ static const struct mode_info *find_mode(const char *name)
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{
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int i;
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for (i = 0; i < NUM_mode_info; ++i)
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if (STREQ(name, mode_info[i].name))
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if (streq(name, mode_info[i].name))
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return &mode_info[i];
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return 0;
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}
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@ -458,7 +454,7 @@ static const struct control_info *find_control(const char *name)
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{
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int i;
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for (i = 0; i < NUM_control_info; ++i)
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if (STREQ(name, control_info[i].name))
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if (streq(name, control_info[i].name))
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return &control_info[i];
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return 0;
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}
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@ -477,17 +473,17 @@ enum {
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static int find_param(const char *name)
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{
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#ifdef HAVE_C_LINE
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if (STREQ(name, "line")) return param_line;
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if (streq(name, "line")) return param_line;
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#endif
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#ifdef TIOCGWINSZ
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if (STREQ(name, "rows")) return param_rows;
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if (STREQ(name, "cols")) return param_cols;
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if (STREQ(name, "columns")) return param_cols;
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if (STREQ(name, "size")) return param_size;
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if (streq(name, "rows")) return param_rows;
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if (streq(name, "cols")) return param_cols;
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if (streq(name, "columns")) return param_cols;
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if (streq(name, "size")) return param_size;
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#endif
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if (STREQ(name, "ispeed")) return param_ispeed;
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if (STREQ(name, "ospeed")) return param_ospeed;
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if (STREQ(name, "speed")) return param_speed;
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if (streq(name, "ispeed")) return param_ispeed;
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if (streq(name, "ospeed")) return param_ospeed;
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if (streq(name, "speed")) return param_speed;
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return 0;
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}
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@ -495,7 +491,7 @@ static int find_param(const char *name)
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int stty_main(int argc, char **argv)
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{
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struct termios mode;
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void (*output_func)(struct termios *);
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void (*output_func)(const struct termios *);
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const char *file_name = NULL;
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int require_set_attr;
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int speed_was_set;
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@ -634,7 +630,7 @@ end_option:
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}
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/* Initialize to all zeroes so there is no risk memcmp will report a
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spurious difference in an uninitialized portion of the structure. */
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spurious difference in an uninitialized portion of the structure */
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memset(&mode, 0, sizeof(mode));
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if (tcgetattr(STDIN_FILENO, &mode))
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perror_on_device("%s");
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@ -739,10 +735,10 @@ end_option:
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can report `success' when it has actually failed to perform
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some proper subset of the requested operations. To detect
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this partial failure, get the current terminal attributes and
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compare them to the requested ones. */
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compare them to the requested ones */
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/* Initialize to all zeroes so there is no risk memcmp will report a
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spurious difference in an uninitialized portion of the structure. */
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spurious difference in an uninitialized portion of the structure */
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memset(&new_mode, 0, sizeof(new_mode));
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if (tcgetattr(STDIN_FILENO, &new_mode))
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perror_on_device("%s");
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@ -756,7 +752,7 @@ end_option:
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Sun users a little confusion, don't report an error if this
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happens. But suppress the error only if we haven't tried to
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set the baud rate explicitly -- otherwise we'd never give an
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error for a true failure to set the baud rate. */
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error for a true failure to set the baud rate */
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new_mode.c_cflag &= (~CIBAUD);
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if (speed_was_set || memcmp(&mode, &new_mode, sizeof(mode)) != 0)
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@ -768,7 +764,6 @@ end_option:
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return EXIT_SUCCESS;
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}
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/* Return 0 if not applied because not reversible; otherwise return 1. */
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static void
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set_mode(const struct mode_info *info, int reversed, struct termios *mode)
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@ -778,7 +773,7 @@ set_mode(const struct mode_info *info, int reversed, struct termios *mode)
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bitsp = mode_type_flag(EMT(info->type), mode);
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if (bitsp == NULL) {
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/* Combination mode. */
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/* Combination mode */
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if (info->name == evenp || info->name == parity) {
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if (reversed)
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mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
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@ -843,7 +838,7 @@ set_mode(const struct mode_info *info, int reversed, struct termios *mode)
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} else if (info->name == raw || info->name == cooked) {
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if ((info->name[0] == 'r' && reversed)
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|| (info->name[0] == 'c' && !reversed)) {
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/* Cooked mode. */
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/* Cooked mode */
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mode->c_iflag |= BRKINT | IGNPAR | ISTRIP | ICRNL | IXON;
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mode->c_oflag |= OPOST;
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mode->c_lflag |= ISIG | ICANON;
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@ -854,7 +849,7 @@ set_mode(const struct mode_info *info, int reversed, struct termios *mode)
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mode->c_cc[VEOL] = CEOL;
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#endif
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} else {
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/* Raw mode. */
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/* Raw mode */
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mode->c_iflag = 0;
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mode->c_oflag &= ~OPOST;
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mode->c_lflag &= ~(ISIG | ICANON
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@ -945,13 +940,13 @@ set_control_char(const struct control_info *info, const char *arg,
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value = bb_xparse_number(arg, stty_suffixes);
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else if (arg[0] == '\0' || arg[1] == '\0')
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value = arg[0];
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else if (STREQ(arg, "^-") || STREQ(arg, "undef"))
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else if (streq(arg, "^-") || streq(arg, "undef"))
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value = _POSIX_VDISABLE;
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else if (arg[0] == '^' && arg[1] != '\0') { /* Ignore any trailing junk. */
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else if (arg[0] == '^' && arg[1] != '\0') { /* Ignore any trailing junk */
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if (arg[1] == '?')
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value = 127;
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else
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value = arg[1] & ~0140; /* Non-letters get weird results. */
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value = arg[1] & ~0140; /* Non-letters get weird results */
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} else
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value = bb_xparse_number(arg, stty_suffixes);
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mode->c_cc[info->offset] = value;
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@ -976,9 +971,7 @@ set_speed(enum speed_setting type, const char *arg, struct termios *mode)
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static int get_win_size(int fd, struct winsize *win)
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{
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int err = ioctl(fd, TIOCGWINSZ, (char *) win);
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return err;
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return ioctl(fd, TIOCGWINSZ, (char *) win);
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}
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static void
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@ -1002,7 +995,7 @@ set_window_size(int rows, int cols)
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The following code deals with a bug in the SunOS 4.x (and 3.x?) kernel.
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This comment from sys/ttold.h describes Sun's twisted logic - a better
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test would have been (ts_lines > 64k || ts_cols > 64k || ts_cols == 0).
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At any rate, the problem is gone in Solaris 2.x. */
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At any rate, the problem is gone in Solaris 2.x */
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if (win.ws_row == 0 || win.ws_col == 0) {
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struct ttysize ttysz;
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@ -1055,7 +1048,7 @@ static int screen_columns(void)
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On ISC 3.0, it fails for the console and the serial port
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(but it works for ptys).
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It can also fail on any system when stdout isn't a tty.
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In case of any failure, just use the default. */
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In case of any failure, just use the default */
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if (get_win_size(STDOUT_FILENO, &win) == 0 && win.ws_col > 0)
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return win.ws_col;
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#endif
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@ -1067,7 +1060,7 @@ static int screen_columns(void)
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return columns;
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}
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static tcflag_t *mode_type_flag(enum mode_type type, struct termios *mode)
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static tcflag_t *mode_type_flag(enum mode_type type, const struct termios *mode)
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{
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static const unsigned char tcflag_offsets[] = {
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offsetof(struct termios, c_cflag), /* control */
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@ -1082,7 +1075,7 @@ static tcflag_t *mode_type_flag(enum mode_type type, struct termios *mode)
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return NULL;
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}
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static void display_changed(struct termios *mode)
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static void display_changed(const struct termios *mode)
|
||||
{
|
||||
int i;
|
||||
int empty_line;
|
||||
@ -1101,12 +1094,12 @@ static void display_changed(struct termios *mode)
|
||||
for (i = 0; control_info[i].name != stty_min; ++i) {
|
||||
if (mode->c_cc[control_info[i].offset] == control_info[i].saneval)
|
||||
continue;
|
||||
/* If swtch is the same as susp, don't print both. */
|
||||
/* If swtch is the same as susp, don't print both */
|
||||
#if VSWTCH == VSUSP
|
||||
if (control_info[i].name == stty_swtch)
|
||||
continue;
|
||||
#endif
|
||||
/* If eof uses the same slot as min, only print whichever applies. */
|
||||
/* If eof uses the same slot as min, only print whichever applies */
|
||||
#if VEOF == VMIN
|
||||
if ((mode->c_lflag & ICANON) == 0
|
||||
&& (control_info[i].name == stty_eof
|
||||
@ -1144,9 +1137,7 @@ static void display_changed(struct termios *mode)
|
||||
wrapf("%s", mode_info[i].name);
|
||||
empty_line = 0;
|
||||
}
|
||||
}
|
||||
else if ((mode_info[i].flags & (SANE_SET | REV)) ==
|
||||
(SANE_SET | REV)) {
|
||||
} else if ((mode_info[i].flags & (SANE_SET | REV)) == (SANE_SET | REV)) {
|
||||
wrapf("-%s", mode_info[i].name);
|
||||
empty_line = 0;
|
||||
}
|
||||
@ -1157,7 +1148,7 @@ static void display_changed(struct termios *mode)
|
||||
}
|
||||
|
||||
static void
|
||||
display_all(struct termios *mode)
|
||||
display_all(const struct termios *mode)
|
||||
{
|
||||
int i;
|
||||
tcflag_t *bitsp;
|
||||
@ -1175,12 +1166,12 @@ display_all(struct termios *mode)
|
||||
current_col = 0;
|
||||
|
||||
for (i = 0; control_info[i].name != stty_min; ++i) {
|
||||
/* If swtch is the same as susp, don't print both. */
|
||||
/* If swtch is the same as susp, don't print both */
|
||||
#if VSWTCH == VSUSP
|
||||
if (control_info[i].name == stty_swtch)
|
||||
continue;
|
||||
#endif
|
||||
/* If eof uses the same slot as min, only print whichever applies. */
|
||||
/* If eof uses the same slot as min, only print whichever applies */
|
||||
#if VEOF == VMIN
|
||||
if ((mode->c_lflag & ICANON) == 0
|
||||
&& (control_info[i].name == stty_eof
|
||||
@ -1217,7 +1208,7 @@ display_all(struct termios *mode)
|
||||
current_col = 0;
|
||||
}
|
||||
|
||||
static void display_speed(struct termios *mode, int fancy)
|
||||
static void display_speed(const struct termios *mode, int fancy)
|
||||
{
|
||||
unsigned long ispeed, ospeed;
|
||||
const char *fmt_str =
|
||||
@ -1237,7 +1228,7 @@ static void display_speed(struct termios *mode, int fancy)
|
||||
current_col = 0;
|
||||
}
|
||||
|
||||
static void display_recoverable(struct termios *mode)
|
||||
static void display_recoverable(const struct termios *mode)
|
||||
{
|
||||
int i;
|
||||
|
||||
@ -1256,7 +1247,7 @@ static int recover_mode(const char *arg, struct termios *mode)
|
||||
unsigned long iflag, oflag, cflag, lflag;
|
||||
|
||||
/* Scan into temporaries since it is too much trouble to figure out
|
||||
the right format for `tcflag_t'. */
|
||||
the right format for `tcflag_t' */
|
||||
if (sscanf(arg, "%lx:%lx:%lx:%lx%n",
|
||||
&iflag, &oflag, &cflag, &lflag, &n) != 4)
|
||||
return 0;
|
||||
@ -1272,7 +1263,7 @@ static int recover_mode(const char *arg, struct termios *mode)
|
||||
arg += n;
|
||||
}
|
||||
|
||||
/* Fail if there are too many fields. */
|
||||
/* Fail if there are too many fields */
|
||||
if (*arg != '\0')
|
||||
return 0;
|
||||
|
||||
@ -1310,8 +1301,8 @@ static void sane_mode(struct termios *mode)
|
||||
}
|
||||
}
|
||||
|
||||
/* Return a string that is the printable representation of character CH. */
|
||||
/* Adapted from `cat' by Torbjorn Granlund. */
|
||||
/* Return a string that is the printable representation of character CH */
|
||||
/* Adapted from `cat' by Torbjorn Granlund */
|
||||
|
||||
static const char *visible(unsigned int ch)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user