+/* vi: set sw=4 ts=4: */
/*
* Replacement for "stty size", which is awkward for shell script use.
* - Allows to request width, height, or both, in any order.
- * - Does not complain on error, but returns default 80x24.
+ * - Does not complain on error, but returns width 80, height 24.
* - Size: less than 200 bytes
+ *
+ * Copyright (C) 2007 by Denys Vlasenko <vda.linux@googlemail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
*/
+
+//usage:#define ttysize_trivial_usage
+//usage: "[w] [h]"
+//usage:#define ttysize_full_usage "\n\n"
+//usage: "Print dimension(s) of stdin's terminal, on error return 80x25"
+
#include "libbb.h"
-int ttysize_main(int argc, char **argv);
-int ttysize_main(int argc, char **argv)
+int ttysize_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int ttysize_main(int argc UNUSED_PARAM, char **argv)
{
- unsigned w,h;
+ unsigned w, h;
struct winsize wsz;
-
+
w = 80;
h = 24;
if (!ioctl(0, TIOCGWINSZ, &wsz)) {
h = wsz.ws_row;
}
- if (argc == 1) {
+ if (!argv[1]) {
printf("%u %u", w, h);
} else {
const char *fmt, *arg;
fmt = "%u %u" + 2; /* " %u" */
}
}
- putchar('\n');
+ bb_putchar('\n');
return 0;
}