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authorMarek Polacek2010-10-28 21:34:56 +0200
committerDenys Vlasenko2010-10-28 21:34:56 +0200
commit7b18107384d950358e146d42bf02b391fab5ffd6 (patch)
tree9994e2bcaa038c3128ed8b3bca99486e22f660fb /console-tools/reset.c
parent02788ac7e2a44eee889aa1005e89076f928e964a (diff)
downloadbusybox-7b18107384d950358e146d42bf02b391fab5ffd6.zip
busybox-7b18107384d950358e146d42bf02b391fab5ffd6.tar.gz
*: use _exit() in sighandlers; showkey: do not use exit-thru-sighandler
While at it, make ESC sequences more readable; and removed check for isatty(stdin) in reset. Code shrink: text data bss dec hex filename 884771 936 17216 902923 dc70b busybox_old 884723 936 17216 902875 dc6db busybox_unstripped Signed-off-by: Marek Polacek <mmpolacek@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'console-tools/reset.c')
-rw-r--r--console-tools/reset.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/console-tools/reset.c b/console-tools/reset.c
index 7dffdea..1806ce7 100644
--- a/console-tools/reset.c
+++ b/console-tools/reset.c
@@ -8,11 +8,13 @@
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-#include "libbb.h"
-
/* BTW, which "standard" package has this utility? It doesn't seem
* to be ncurses, coreutils, console-tools... then what? */
+#include "libbb.h"
+
+#define ESC "\033"
+
#if ENABLE_STTY
int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
#endif
@@ -26,15 +28,15 @@ int reset_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
/* no options, no getopt */
- if (isatty(STDIN_FILENO) && isatty(STDOUT_FILENO)) {
+ if (/*isatty(STDIN_FILENO) &&*/ isatty(STDOUT_FILENO)) {
/* See 'man 4 console_codes' for details:
* "ESC c" -- Reset
* "ESC ( K" -- Select user mapping
- * "ESC [ J" -- Erase to the end of screen
* "ESC [ 0 m" -- Reset all display attributes
+ * "ESC [ J" -- Erase to the end of screen
* "ESC [ ? 25 h" -- Make cursor visible
*/
- printf("\033c\033(K\033[J\033[0m\033[?25h");
+ printf(ESC"c" ESC"(K" ESC"[0m" ESC"[J" ESC"[?25h");
/* http://bugs.busybox.net/view.php?id=1414:
* people want it to reset echo etc: */
#if ENABLE_STTY