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stty: code shrink -44 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
9f5a577a32
commit
800ff7cc75
@ -619,9 +619,9 @@ enum {
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struct globals {
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const char *device_name; // = bb_msg_standard_input;
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const char *device_name;
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/* The width of the screen, for output wrapping */
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unsigned max_col; // = 80;
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unsigned max_col;
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/* Current position, to know when to wrap */
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unsigned current_col;
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char buf[10];
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@ -734,7 +734,13 @@ static void wrapf(const char *message, ...)
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G.current_col = 0;
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}
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static void set_window_size(const int rows, const int cols)
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static void newline(void)
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{
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if (G.current_col != 0)
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wrapf("\n");
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}
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static void set_window_size(int rows, int cols)
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{
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struct winsize win = { 0, 0, 0, 0 };
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@ -755,7 +761,7 @@ bail:
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perror_on_device("%s");
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}
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static void display_window_size(const int fancy)
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static void display_window_size(int fancy)
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{
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const char *fmt_str = "%s\0%s: no size information for this device";
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unsigned width, height;
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@ -765,7 +771,7 @@ static void display_window_size(const int fancy)
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perror_on_device(fmt_str);
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}
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} else {
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wrapf(fancy ? "rows %d; columns %d;" : "%d %d\n",
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wrapf(fancy ? "rows %u; columns %u;" : "%u %u\n",
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height, width);
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}
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}
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@ -864,21 +870,21 @@ 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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{
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//01234567 8 9
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//____________________ 01234567 8 9
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const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;";
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unsigned long ispeed, ospeed;
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ospeed = ispeed = cfgetispeed(mode);
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if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) {
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ispeed = ospeed; /* in case ispeed was 0 */
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//0123 4 5 6 7 8 9
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//________ 0123 4 5 6 7 8 9
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fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;";
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}
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if (fancy) fmt_str += 9;
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wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed));
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}
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static void do_display(const struct termios *mode, const int all)
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static void do_display(const struct termios *mode, int all)
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{
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int i;
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tcflag_t *bitsp;
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@ -889,9 +895,9 @@ static void do_display(const struct termios *mode, const int all)
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if (all)
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display_window_size(1);
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#ifdef HAVE_C_LINE
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wrapf("line = %d;\n", mode->c_line);
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wrapf("line = %u;\n", mode->c_line);
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#else
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wrapf("\n");
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newline();
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#endif
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for (i = 0; i != CIDX_min; ++i) {
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@ -902,7 +908,7 @@ static void do_display(const struct termios *mode, const int all)
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#endif
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/* If eof uses the same slot as min, only print whichever applies */
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#if VEOF == VMIN
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if ((mode->c_lflag & ICANON) == 0
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if (!(mode->c_lflag & ICANON)
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&& (i == CIDX_eof || i == CIDX_eol)
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) {
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continue;
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@ -914,15 +920,14 @@ static void do_display(const struct termios *mode, const int all)
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#if VEOF == VMIN
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if ((mode->c_lflag & ICANON) == 0)
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#endif
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wrapf("min = %d; time = %d;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
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if (G.current_col) wrapf("\n");
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wrapf("min = %u; time = %u;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
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newline();
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for (i = 0; i < NUM_mode_info; ++i) {
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if (mode_info[i].flags & OMIT)
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continue;
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if (mode_info[i].type != prev_type) {
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/* wrapf("\n"); */
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if (G.current_col) wrapf("\n");
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newline();
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prev_type = mode_info[i].type;
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}
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@ -939,7 +944,7 @@ static void do_display(const struct termios *mode, const int all)
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}
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}
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}
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if (G.current_col) wrapf("\n");
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newline();
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}
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static void sane_mode(struct termios *mode)
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@ -1138,7 +1143,7 @@ static void set_control_char_or_die(const struct control_info *info,
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value = xatoul_range_sfx(arg, 0, 0xff, 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 (!strcmp(arg, "^-") || !strcmp(arg, "undef"))
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else if (strcmp(arg, "^-") == 0 || strcmp(arg, "undef") == 0)
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value = _POSIX_VDISABLE;
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else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */
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value = arg[1] & 0x1f; /* Non-letters get weird results */
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@ -1159,7 +1164,7 @@ int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int stty_main(int argc UNUSED_PARAM, char **argv)
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{
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struct termios mode;
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void (*output_func)(const struct termios *, const int);
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void (*output_func)(const struct termios *, int);
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const char *file_name = NULL;
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int display_all = 0;
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int stty_state;
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@ -1289,9 +1294,11 @@ int stty_main(int argc UNUSED_PARAM, char **argv)
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(STTY_verbose_output | STTY_recoverable_output))
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bb_error_msg_and_die("verbose and stty-readable output styles are mutually exclusive");
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/* Specifying -a or -g with non-options is an error */
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if (!(stty_state & STTY_noargs) &&
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(stty_state & (STTY_verbose_output | STTY_recoverable_output)))
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if (!(stty_state & STTY_noargs)
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&& (stty_state & (STTY_verbose_output | STTY_recoverable_output))
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) {
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bb_error_msg_and_die("modes may not be set when specifying an output style");
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}
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/* Now it is safe to start doing things */
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if (file_name) {
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