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Be entirely consistant when using ioctl(0, TIOCGWINSZ, &winsize)

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to ensure proper fallback behavior on, i.e. serial consoles.
 -Erik
This commit is contained in:
Eric Andersen 2003-09-15 08:33:45 +00:00
parent c4f72d1426
commit 8efe967018
10 changed files with 110 additions and 95 deletions
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15
coreutils/ls.c
View File

@ -203,7 +203,7 @@ static int is_flask_enabled_flag;
#endif
#ifdef CONFIG_FEATURE_AUTOWIDTH
static unsigned short terminal_width = TERMINAL_WIDTH;
static int terminal_width = TERMINAL_WIDTH;
static unsigned short tabstops = COLUMN_GAP;
#else
#define tabstops COLUMN_GAP
@ -915,10 +915,6 @@ extern int ls_main(int argc, char **argv)
is_flask_enabled_flag = is_flask_enabled();
#endif
#ifdef CONFIG_FEATURE_AUTOWIDTH
struct winsize win = { 0, 0, 0, 0 };
#endif
all_fmt = LIST_SHORT | DISP_NORMAL | STYLE_AUTO
#ifdef CONFIG_FEATURE_LS_TIMESTAMPS
| TIME_MOD
@ -927,11 +923,10 @@ extern int ls_main(int argc, char **argv)
| SORT_NAME | SORT_ORDER_FORWARD
#endif
;
#ifdef CONFIG_FEATURE_AUTOWIDTH
ioctl(fileno(stdout), TIOCGWINSZ, &win);
if (win.ws_col > 0)
terminal_width = win.ws_col - 1;
#endif
/* Obtain the terminal width. */
get_terminal_width_height(0, &terminal_width, NULL);
/* Go one less... */
terminal_width--;
nfiles = 0;
#ifdef CONFIG_FEATURE_LS_COLOR

36
editors/vi.c
View File

@ -19,7 +19,7 @@
*/
static const char vi_Version[] =
"$Id: vi.c,v 1.28 2003/03/19 09:11:45 mjn3 Exp $";
"$Id: vi.c,v 1.29 2003/09/15 08:33:36 andersen Exp $";
/*
* To compile for standalone use:
@ -197,9 +197,6 @@ static jmp_buf restart; // catch_sig()
#if defined(CONFIG_FEATURE_VI_USE_SIGNALS) || defined(CONFIG_FEATURE_VI_CRASHME)
static int my_pid;
#endif
#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
static struct winsize winsize; // remember the window size
#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
#ifdef CONFIG_FEATURE_VI_DOT_CMD
static int adding2q; // are we currently adding user input to q
static Byte *last_modifying_cmd; // last modifying cmd for "."
@ -412,6 +409,14 @@ extern int vi_main(int argc, char **argv)
return (0);
}
#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
//----- See what the window size currently is --------------------
static inline void window_size_get(int fd)
{
get_terminal_width_height(fd, &columns, &rows);
}
#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
static void edit_file(Byte * fn)
{
Byte c;
@ -2122,29 +2127,6 @@ static void cookmode(void)
tcsetattr(0, TCSANOW, &term_orig);
}
#ifdef CONFIG_FEATURE_VI_WIN_RESIZE
//----- See what the window size currently is --------------------
static void window_size_get(int sig)
{
int i;
i = ioctl(0, TIOCGWINSZ, &winsize);
if (i != 0) {
// force 24x80
winsize.ws_row = 24;
winsize.ws_col = 80;
}
if (winsize.ws_row <= 1) {
winsize.ws_row = 24;
}
if (winsize.ws_col <= 1) {
winsize.ws_col = 80;
}
rows = (int) winsize.ws_row;
columns = (int) winsize.ws_col;
}
#endif /* CONFIG_FEATURE_VI_WIN_RESIZE */
//----- Come here when we get a window resize signal ---------
#ifdef CONFIG_FEATURE_VI_USE_SIGNALS
static void winch_sig(int sig)

7
include/libbb.h
View File

@ -462,9 +462,10 @@ typedef struct llist_s {
} llist_t;
extern llist_t *llist_add_to(llist_t *old_head, char *new_item);
void print_login_issue(const char *issue_file, const char *tty);
void print_login_prompt(void);
extern void print_login_issue(const char *issue_file, const char *tty);
extern void print_login_prompt(void);
void vfork_daemon_rexec(int argc, char **argv, char *foreground_opt);
extern void vfork_daemon_rexec(int argc, char **argv, char *foreground_opt);
extern void get_terminal_width_height(int fd, int *width, int *height);
#endif /* __LIBCONFIG_H__ */

66
libbb/get_terminal_width_height.c Normal file
View File

@ -0,0 +1,66 @@
/* vi: set sw=4 ts=4: */
/*
* Determine the width and height of the terminal.
*
* Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <unistd.h>
#include <termios.h>
#include <sys/ioctl.h>
#include "busybox.h"
/* It is perfectly ok to pass in a NULL for either width or for
* height, in which case that value will not be set. It is also
* perfectly ok to have CONFIG_FEATURE_AUTOWIDTH disabled, in
* which case you will always get 80x24 */
void get_terminal_width_height(int fd, int *width, int *height)
{
struct winsize win = { 0, 0, 0, 0 };
#ifdef CONFIG_FEATURE_AUTOWIDTH
if (ioctl(0, TIOCGWINSZ, &win) != 0) {
win.ws_row = 24;
win.ws_col = 80;
}
#endif
if (win.ws_row <= 1) {
win.ws_row = 24;
}
if (win.ws_col <= 1) {
win.ws_col = 80;
}
if (height) {
*height = (int) win.ws_row;
}
if (width) {
*width = (int) win.ws_col;
}
}
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/

10
networking/telnet.c
View File

@ -44,10 +44,6 @@
#include <netinet/in.h>
#include "busybox.h"
#ifdef CONFIG_FEATURE_AUTOWIDTH
# include <sys/ioctl.h>
#endif
#if 0
static const int DOTRACE = 1;
#endif
@ -585,11 +581,7 @@ extern int telnet_main(int argc, char** argv)
#endif
#ifdef CONFIG_FEATURE_AUTOWIDTH
struct winsize winp;
if( ioctl(0, TIOCGWINSZ, &winp) == 0 ) {
win_width = winp.ws_col;
win_height = winp.ws_row;
}
get_terminal_width_height(0, &win_width, &win_height);
#endif
#ifdef CONFIG_FEATURE_TELNET_TTYPE

11
networking/wget.c
View File

@ -679,12 +679,9 @@ static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
static int
getttywidth(void)
{
struct winsize winsize;
if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
return (winsize.ws_col ? winsize.ws_col : 80);
else
return (80);
int width=0;
get_terminal_width_height(0, &width, NULL);
return (width);
}
static void
@ -841,7 +838,7 @@ progressmeter(int flag)
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: wget.c,v 1.59 2003/09/11 08:25:11 andersen Exp $
* $Id: wget.c,v 1.60 2003/09/15 08:33:37 andersen Exp $
*/

14
procps/ps.c
View File

@ -44,12 +44,7 @@ extern int ps_main(int argc, char **argv)
{
procps_status_t * p;
int i, len;
#ifdef CONFIG_FEATURE_AUTOWIDTH
struct winsize win = { 0, 0, 0, 0 };
int terminal_width = TERMINAL_WIDTH;
#else
#define terminal_width TERMINAL_WIDTH
#endif
#ifdef CONFIG_SELINUX
int use_selinux = 0;
@ -58,12 +53,9 @@ extern int ps_main(int argc, char **argv)
use_selinux = 1;
#endif
#ifdef CONFIG_FEATURE_AUTOWIDTH
ioctl(fileno(stdout), TIOCGWINSZ, &win);
if (win.ws_col > 0)
terminal_width = win.ws_col - 1;
#endif
get_terminal_width_height(0, &terminal_width, NULL);
/* Go one less... */
terminal_width--;
#ifdef CONFIG_SELINUX
if(use_selinux)

21
procps/top.c
View File

@ -373,10 +373,11 @@ static void display_status(int count, int col)
sprintf(rss_str_buf, "%6ldM", s->rss/1024);
else
sprintf(rss_str_buf, "%7ld", s->rss);
printf(
#ifdef FEATURE_CPU_USAGE_PERCENTAGE
printf("%5d %-8s %s %s %5d %2d.%d %2u.%u ",
"%5d %-8s %s %s %5d %2d.%d %2u.%u ",
#else
printf("%5d %-8s %s %s %5d %2u.%u ",
"%5d %-8s %s %s %5d %2u.%u ",
#endif
s->pid, s->user, s->state, rss_str_buf, s->ppid,
#ifdef FEATURE_CPU_USAGE_PERCENTAGE
@ -432,9 +433,6 @@ int top_main(int argc, char **argv)
fd_set readfds;
unsigned char c;
struct sigaction sa;
#if defined CONFIG_FEATURE_AUTOWIDTH
struct winsize win = { 0, 0, 0, 0 };
#endif
#endif /* CONFIG_FEATURE_USE_TERMIOS */
/* Default update rate is 5 seconds */
@ -478,17 +476,16 @@ int top_main(int argc, char **argv)
sigaction (SIGINT, &sa, (struct sigaction *) 0);
tcsetattr(0, TCSANOW, (void *) &new_settings);
atexit(reset_term);
#if defined CONFIG_FEATURE_AUTOWIDTH
ioctl(0, TIOCGWINSZ, &win);
if (win.ws_row > 4) {
lines = win.ws_row - 5;
get_terminal_width_height(0, &col, &lines);
if (lines > 4) {
lines -= 5;
#ifdef FEATURE_CPU_USAGE_PERCENTAGE
col = win.ws_col - 80 + 35 - 6;
col = col - 80 + 35 - 6;
#else
col = win.ws_col - 80 + 35;
col = col - 80 + 35;
#endif
}
#endif
#endif /* CONFIG_FEATURE_USE_TERMIOS */
#ifdef FEATURE_CPU_USAGE_PERCENTAGE
sort_function[0] = pcpu_sort;

8
shell/cmdedit.c
View File

@ -167,15 +167,13 @@ static void cmdedit_setwidth(int w, int redraw_flg);
static void win_changed(int nsig)
{
struct winsize win = { 0, 0, 0, 0 };
static sighandler_t previous_SIGWINCH_handler; /* for reset */
/* emulate || signal call */
if (nsig == -SIGWINCH || nsig == SIGWINCH) {
ioctl(0, TIOCGWINSZ, &win);
if (win.ws_col > 0) {
cmdedit_setwidth(win.ws_col, nsig == SIGWINCH);
}
int width = 0;
get_terminal_width_height(0, &width, NULL);
cmdedit_setwidth(width, nsig == SIGWINCH);
}
/* Unix not all standart in recall signal */

17
util-linux/more.c
View File

@ -69,10 +69,6 @@ extern int more_main(int argc, char **argv)
FILE *file;
int len, page_height;
#if defined CONFIG_FEATURE_AUTOWIDTH && defined CONFIG_FEATURE_USE_TERMIOS
struct winsize win = { 0, 0, 0, 0 };
#endif
argc--;
argv++;
@ -115,13 +111,12 @@ extern int more_main(int argc, char **argv)
if(please_display_more_prompt>0)
please_display_more_prompt = 0;
#if defined CONFIG_FEATURE_AUTOWIDTH && defined CONFIG_FEATURE_USE_TERMIOS
ioctl(fileno(stdout), TIOCGWINSZ, &win);
if (win.ws_row > 4)
terminal_height = win.ws_row - 2;
if (win.ws_col > 0)
terminal_width = win.ws_col - 1;
#endif
get_terminal_width_height(0, &terminal_width, &terminal_height);
if (terminal_height > 4)
terminal_height -= 2;
if (terminal_width > 0)
terminal_width -= 1;
len=0;
lines = 0;
page_height = terminal_height;