From 6e8861b5f139cde297a95e785e7c616cf129df80 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Sun, 15 Jan 2012 23:00:13 +0100 Subject: [PATCH] *: better comments on termios manipulations. No code changes. Signed-off-by: Denys Vlasenko --- editors/vi.c | 2 +- loginutils/getty.c | 6 ++++-- util-linux/more.c | 3 +-- 3 files changed, 6 insertions(+), 5 deletions(-) diff --git a/editors/vi.c b/editors/vi.c index 6070c48d2..4a2d5d4f1 100644 --- a/editors/vi.c +++ b/editors/vi.c @@ -2304,7 +2304,7 @@ static void rawmode(void) { tcgetattr(0, &term_orig); term_vi = term_orig; - term_vi.c_lflag &= (~ICANON & ~ECHO); // leave ISIG ON- allow intr's + term_vi.c_lflag &= (~ICANON & ~ECHO); // leave ISIG on - allow intr's term_vi.c_iflag &= (~IXON & ~ICRNL); term_vi.c_oflag &= (~ONLCR); term_vi.c_cc[VMIN] = 1; diff --git a/loginutils/getty.c b/loginutils/getty.c index 1f417591b..afb411b98 100644 --- a/loginutils/getty.c +++ b/loginutils/getty.c @@ -294,8 +294,10 @@ static void init_tty_attrs(int speed) /* non-raw output; add CR to each NL */ G.tty_attrs.c_oflag = OPOST | ONLCR; - G.tty_attrs.c_cc[VMIN] = 1; /* block reads if < 1 char is available */ - G.tty_attrs.c_cc[VTIME] = 0; /* no timeout (reads block forever) */ + /* reads would block only if < 1 char is available */ + G.tty_attrs.c_cc[VMIN] = 1; + /* no timeout (reads block forever) */ + G.tty_attrs.c_cc[VTIME] = 0; #ifdef __linux__ G.tty_attrs.c_line = 0; #endif diff --git a/util-linux/more.c b/util-linux/more.c index efceb71ec..359571397 100644 --- a/util-linux/more.c +++ b/util-linux/more.c @@ -85,8 +85,7 @@ int more_main(int argc UNUSED_PARAM, char **argv) cin_fileno = fileno(cin); getTermSettings(cin_fileno, &initial_settings); new_settings = initial_settings; - new_settings.c_lflag &= ~ICANON; - new_settings.c_lflag &= ~ECHO; + new_settings.c_lflag &= ~(ICANON | ECHO); new_settings.c_cc[VMIN] = 1; new_settings.c_cc[VTIME] = 0; setTermSettings(cin_fileno, &new_settings);