libbb: consolidate the code to set termios unbuffered mode

function                                             old     new   delta
set_termios_to_raw                                     -     116    +116
count_lines                                           72      74      +2
powertop_main                                       1458    1430     -28
top_main                                             943     914     -29
more_main                                            759     714     -45
fsck_minix_main                                     2969    2921     -48
conspy_main                                         1197    1135     -62
rawmode                                               99      36     -63
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/6 up/down: 118/-275)         Total: -157 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-01-11 16:17:59 +01:00
parent 8944c67b1f
commit 01ccdd1d3c
15 changed files with 71 additions and 55 deletions

View File

@ -2325,7 +2325,7 @@ int FAST_FUNC read_line_input(line_input_t *st, const char *prompt, char *comman
/* ~ECHO, ~ECHONL: turn off echoing, including newline echoing */
/* ~ISIG: turn off INTR (ctrl-C), QUIT, SUSP */
new_settings.c_lflag &= ~(ICANON | ECHO | ECHONL | ISIG);
/* reads would block only if < 1 char is available */
/* reads will block only if < 1 char is available */
new_settings.c_cc[VMIN] = 1;
/* no timeout (reads block forever) */
new_settings.c_cc[VTIME] = 0;