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stty: code shrink -44 bytes

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2009-12-11 15:00:17 +01:00
parent 9f5a577a32
commit 800ff7cc75
1 changed files with 27 additions and 20 deletions
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47
coreutils/stty.c
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@ -619,9 +619,9 @@ enum {
struct globals { struct globals {
const char *device_name; // = bb_msg_standard_input; const char *device_name;
/* The width of the screen, for output wrapping */ /* The width of the screen, for output wrapping */
unsigned max_col; // = 80; unsigned max_col;
/* Current position, to know when to wrap */ /* Current position, to know when to wrap */
unsigned current_col; unsigned current_col;
char buf[10]; char buf[10];
@ -734,7 +734,13 @@ static void wrapf(const char *message, ...)
G.current_col = 0; G.current_col = 0;
} }
static void set_window_size(const int rows, const int cols) static void newline(void)
{
if (G.current_col != 0)
wrapf("\n");
}
static void set_window_size(int rows, int cols)
{ {
struct winsize win = { 0, 0, 0, 0 }; struct winsize win = { 0, 0, 0, 0 };
@ -755,7 +761,7 @@ bail:
perror_on_device("%s"); perror_on_device("%s");
} }
static void display_window_size(const int fancy) static void display_window_size(int fancy)
{ {
const char *fmt_str = "%s\0%s: no size information for this device"; const char *fmt_str = "%s\0%s: no size information for this device";
unsigned width, height; unsigned width, height;
@ -765,7 +771,7 @@ static void display_window_size(const int fancy)
perror_on_device(fmt_str); perror_on_device(fmt_str);
} }
} else { } else {
wrapf(fancy ? "rows %d; columns %d;" : "%d %d\n", wrapf(fancy ? "rows %u; columns %u;" : "%u %u\n",
height, width); height, width);
} }
} }
@ -864,21 +870,21 @@ static void display_recoverable(const struct termios *mode,
static void display_speed(const struct termios *mode, int fancy) static void display_speed(const struct termios *mode, int fancy)
{ {
//01234567 8 9 //____________________ 01234567 8 9
const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;"; const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;";
unsigned long ispeed, ospeed; unsigned long ispeed, ospeed;
ospeed = ispeed = cfgetispeed(mode); ospeed = ispeed = cfgetispeed(mode);
if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) { if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) {
ispeed = ospeed; /* in case ispeed was 0 */ ispeed = ospeed; /* in case ispeed was 0 */
//0123 4 5 6 7 8 9 //________ 0123 4 5 6 7 8 9
fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;"; fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;";
} }
if (fancy) fmt_str += 9; if (fancy) fmt_str += 9;
wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed)); wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed));
} }
static void do_display(const struct termios *mode, const int all) static void do_display(const struct termios *mode, int all)
{ {
int i; int i;
tcflag_t *bitsp; tcflag_t *bitsp;
@ -889,9 +895,9 @@ static void do_display(const struct termios *mode, const int all)
if (all) if (all)
display_window_size(1); display_window_size(1);
#ifdef HAVE_C_LINE #ifdef HAVE_C_LINE
wrapf("line = %d;\n", mode->c_line); wrapf("line = %u;\n", mode->c_line);
#else #else
wrapf("\n"); newline();
#endif #endif
for (i = 0; i != CIDX_min; ++i) { for (i = 0; i != CIDX_min; ++i) {
@ -902,7 +908,7 @@ static void do_display(const struct termios *mode, const int all)
#endif #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 VEOF == VMIN
if ((mode->c_lflag & ICANON) == 0 if (!(mode->c_lflag & ICANON)
&& (i == CIDX_eof || i == CIDX_eol) && (i == CIDX_eof || i == CIDX_eol)
) { ) {
continue; continue;
@ -914,15 +920,14 @@ static void do_display(const struct termios *mode, const int all)
#if VEOF == VMIN #if VEOF == VMIN
if ((mode->c_lflag & ICANON) == 0) if ((mode->c_lflag & ICANON) == 0)
#endif #endif
wrapf("min = %d; time = %d;", mode->c_cc[VMIN], mode->c_cc[VTIME]); wrapf("min = %u; time = %u;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
if (G.current_col) wrapf("\n"); newline();
for (i = 0; i < NUM_mode_info; ++i) { for (i = 0; i < NUM_mode_info; ++i) {
if (mode_info[i].flags & OMIT) if (mode_info[i].flags & OMIT)
continue; continue;
if (mode_info[i].type != prev_type) { if (mode_info[i].type != prev_type) {
/* wrapf("\n"); */ newline();
if (G.current_col) wrapf("\n");
prev_type = mode_info[i].type; prev_type = mode_info[i].type;
} }
@ -939,7 +944,7 @@ static void do_display(const struct termios *mode, const int all)
} }
} }
} }
if (G.current_col) wrapf("\n"); newline();
} }
static void sane_mode(struct termios *mode) static void sane_mode(struct termios *mode)
@ -1138,7 +1143,7 @@ static void set_control_char_or_die(const struct control_info *info,
value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes); value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
else if (arg[0] == '\0' || arg[1] == '\0') else if (arg[0] == '\0' || arg[1] == '\0')
value = arg[0]; value = arg[0];
else if (!strcmp(arg, "^-") || !strcmp(arg, "undef")) else if (strcmp(arg, "^-") == 0 || strcmp(arg, "undef") == 0)
value = _POSIX_VDISABLE; value = _POSIX_VDISABLE;
else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */ else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */
value = arg[1] & 0x1f; /* Non-letters get weird results */ value = arg[1] & 0x1f; /* Non-letters get weird results */
@ -1159,7 +1164,7 @@ int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int stty_main(int argc UNUSED_PARAM, char **argv) int stty_main(int argc UNUSED_PARAM, char **argv)
{ {
struct termios mode; struct termios mode;
void (*output_func)(const struct termios *, const int); void (*output_func)(const struct termios *, int);
const char *file_name = NULL; const char *file_name = NULL;
int display_all = 0; int display_all = 0;
int stty_state; int stty_state;
@ -1289,9 +1294,11 @@ int stty_main(int argc UNUSED_PARAM, char **argv)
(STTY_verbose_output | STTY_recoverable_output)) (STTY_verbose_output | STTY_recoverable_output))
bb_error_msg_and_die("verbose and stty-readable output styles are mutually exclusive"); bb_error_msg_and_die("verbose and stty-readable output styles are mutually exclusive");
/* Specifying -a or -g with non-options is an error */ /* Specifying -a or -g with non-options is an error */
if (!(stty_state & STTY_noargs) && if (!(stty_state & STTY_noargs)
(stty_state & (STTY_verbose_output | STTY_recoverable_output))) && (stty_state & (STTY_verbose_output | STTY_recoverable_output))
) {
bb_error_msg_and_die("modes may not be set when specifying an output style"); bb_error_msg_and_die("modes may not be set when specifying an output style");
}
/* Now it is safe to start doing things */ /* Now it is safe to start doing things */
if (file_name) { if (file_name) {