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authorDenys Vlasenko <vda.linux@googlemail.com>2012-01-15 22:00:13 (GMT)
committer Denys Vlasenko <vda.linux@googlemail.com>2012-01-15 22:00:13 (GMT)
commit6e8861b5f139cde297a95e785e7c616cf129df80 (patch)
tree4f4ce792bd441ac9541033e7f6899bedcf2b6d4a
parent7ce209b9d4f6053b7e6d07dec66e382bc3614c35 (diff)
downloadbusybox-6e8861b5f139cde297a95e785e7c616cf129df80.tar.gz
busybox-6e8861b5f139cde297a95e785e7c616cf129df80.tar.bz2
*: better comments on termios manipulations. No code changes.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--editors/vi.c2
-rw-r--r--loginutils/getty.c6
-rw-r--r--util-linux/more.c3
3 files changed, 6 insertions, 5 deletions
diff --git a/editors/vi.c b/editors/vi.c
index 6070c48..4a2d5d4 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 1f41759..afb411b 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 efceb71..3595713 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);