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| author | Denys Vlasenko | 2017-01-11 16:17:59 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2017-01-11 16:17:59 +0100 |
| commit | 01ccdd1d3c5221789f1ac62ced12b7984d910705 (patch) | |
| tree | a6eb44f24c1324ddf18bfcec57fd4c3735aa1245 /util-linux/more.c | |
| parent | 8944c67b1f61ca6a51a485772d5d1e6a8ff3d83d (diff) | |
| download | busybox-01ccdd1d3c5221789f1ac62ced12b7984d910705.zip busybox-01ccdd1d3c5221789f1ac62ced12b7984d910705.tar.gz | |
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>
Diffstat (limited to 'util-linux/more.c')
| -rw-r--r-- | util-linux/more.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/util-linux/more.c b/util-linux/more.c index 7fa60bd..debad81 100644 --- a/util-linux/more.c +++ b/util-linux/more.c @@ -43,7 +43,6 @@ struct globals { unsigned terminal_width; unsigned terminal_height; struct termios initial_settings; - struct termios new_settings; } FIX_ALIASING; #define G (*(struct globals*)bb_common_bufsiz1) #define INIT_G() do { setup_common_bufsiz(); } while (0) @@ -101,12 +100,9 @@ int more_main(int argc UNUSED_PARAM, char **argv) return bb_cat(argv); G.tty_fileno = fileno(tty); - tcgetattr(G.tty_fileno, &G.initial_settings); - G.new_settings = G.initial_settings; - G.new_settings.c_lflag &= ~(ICANON | ECHO); - G.new_settings.c_cc[VMIN] = 1; - G.new_settings.c_cc[VTIME] = 0; - tcsetattr_tty_TCSANOW(&G.new_settings); + + /* Turn on unbuffered input; turn off echoing */ + set_termios_to_raw(G.tty_fileno, &G.initial_settings, 0); bb_signals(BB_FATAL_SIGS, gotsig); do { |