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authorRob Landley2006-09-20 22:06:01 +0000
committerRob Landley2006-09-20 22:06:01 +0000
commitfbdf121b7da7fa78160f7c35ea7c4b3ed2f307d4 (patch)
treed75a76ec70963d1803d2a76bcf5030d30d8c6093
parent4ef6f647a3f971a69c599b51f917a6b74ae32a4c (diff)
downloadbusybox-fbdf121b7da7fa78160f7c35ea7c4b3ed2f307d4.zip
busybox-fbdf121b7da7fa78160f7c35ea7c4b3ed2f307d4.tar.gz
Teach get_terminal_width_height to fall back to $LINES and $COLUMNS when
used via things like a serial console.
-rw-r--r--libbb/Makefile.in8
-rw-r--r--libbb/get_terminal_width_height.c31
-rw-r--r--libbb/xfuncs.c25
3 files changed, 27 insertions, 37 deletions
diff --git a/libbb/Makefile.in b/libbb/Makefile.in
index 3db891d..f731e6e 100644
--- a/libbb/Makefile.in
+++ b/libbb/Makefile.in
@@ -22,16 +22,14 @@ LIBBB-y:= \
kernel_version.c last_char_is.c login.c \
make_directory.c md5.c mode_string.c mtab_file.c \
obscure.c parse_mode.c parse_number.c perror_msg.c \
- perror_msg_and_die.c get_console.c \
- process_escape_sequence.c procps.c \
- recursive_action.c remove_file.c \
+ perror_msg_and_die.c get_console.c process_escape_sequence.c procps.c \
+ recursive_action.c remove_file.c info_msg.c vinfo_msg.c \
restricted_shell.c run_parts.c run_shell.c safe_read.c safe_write.c \
safe_strncpy.c setup_environment.c sha1.c simplify_path.c \
trim.c u_signal_names.c vdprintf.c verror_msg.c \
- info_msg.c vinfo_msg.c \
vherror_msg.c vperror_msg.c wfopen.c xconnect.c xgetcwd.c \
xgethostbyname.c xgethostbyname2.c xreadlink.c xgetlarg.c \
- get_terminal_width_height.c fclose_nonstdin.c fflush_stdout_and_exit.c \
+ fclose_nonstdin.c fflush_stdout_and_exit.c \
getopt_ulflags.c default_error_retval.c wfopen_input.c speed_table.c \
perror_nomsg_and_die.c perror_nomsg.c skip_whitespace.c bb_askpass.c \
warn_ignoring_args.c concat_subpath_file.c vfork_daemon_rexec.c \
diff --git a/libbb/get_terminal_width_height.c b/libbb/get_terminal_width_height.c
deleted file mode 100644
index 941f04c..0000000
--- a/libbb/get_terminal_width_height.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Determine the width and height of the terminal.
- *
- * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
- *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
- */
-
-#include <stdio.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <unistd.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-#include "libbb.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. */
-int get_terminal_width_height(int fd, int *width, int *height)
-{
- struct winsize win = { 0, 0, 0, 0 };
- int ret = ioctl(fd, TIOCGWINSZ, &win);
- 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;
-
- return ret;
-}
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index d77bf38..92091e5 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -6,7 +6,7 @@
* Copyright (C) 2006 Rob Landley
* Copyright (C) 2006 Denis Vlasenko
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPL version 2, see file LICENSE in this tarball for details.
*/
#include "busybox.h"
@@ -494,3 +494,26 @@ void xstat(char *name, struct stat *stat_buf)
}
#endif
+#ifdef L_get_terminal_width_height
+/* It is perfectly ok to pass in a NULL for either width or for
+ * * height, in which case that value will not be set. */
+int get_terminal_width_height(int fd, int *width, int *height)
+{
+ struct winsize win = { 0, 0, 0, 0 };
+ int ret = ioctl(fd, TIOCGWINSZ, &win);
+ if (!win.ws_row) {
+ char *s = getenv("LINES");
+ if (s) win.ws_row = atoi(s);
+ }
+ if (win.ws_row <= 1) win.ws_row = 24;
+ if (!win.ws_col) {
+ char *s = getenv("COLUMNS");
+ if (s) win.ws_col = atoi(s);
+ }
+ if (win.ws_col <= 1) win.ws_col = 80;
+ if (height) *height = (int) win.ws_row;
+ if (width) *width = (int) win.ws_col;
+
+ return ret;
+}
+#endif