libbb: factor out code which queries screen width
function old new delta
get_terminal_width - 17 +17
stty_main 1196 1197 +1
pstree_main 321 319 -2
ls_main 735 731 -4
watch_main 232 225 -7
bb_progress_update 714 706 -8
ps_main 555 543 -12
run_applet_and_exit 708 695 -13
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/6 up/down: 18/-46) Total: -28 byte
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/include/libbb.h b/include/libbb.h
index 28f5722..82484f9 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1399,6 +1399,7 @@
char *xmalloc_ttyname(int fd) FAST_FUNC RETURNS_MALLOC;
/* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */
int get_terminal_width_height(int fd, unsigned *width, unsigned *height) FAST_FUNC;
+int get_terminal_width(int fd) FAST_FUNC;
int tcsetattr_stdin_TCSANOW(const struct termios *tp) FAST_FUNC;