+/* vi: set sw=4 ts=4: */
/*
* Mini tty implementation for busybox
*
*
*/
-#include "internal.h"
#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
#include <sys/types.h>
+#include "busybox.h"
-static const char tty_usage[] = "tty\n\n"
-"Print the file name of the terminal connected to standard input.\n"
-"\t-s\tprint nothing, only return an exit status\n";
-
-extern int tty_main(int argc, char **argv) {
+extern int tty_main(int argc, char **argv)
+{
char *tty;
if (argc > 1) {
- if (argv[1][0] != '-' || argv[1][1] != 's') usage (tty_usage);
- }
- else {
- tty = ttyname (0);
- if (tty) puts (tty);
- else puts ("not a tty");
+ if (argv[1][0] != '-' || argv[1][1] != 's')
+ show_usage();
+ } else {
+ tty = ttyname(0);
+ if (tty)
+ puts(tty);
+ else
+ puts("not a tty");
}
- exit (isatty (0) ? TRUE : FALSE);
+ return(isatty(0) ? EXIT_SUCCESS : EXIT_FAILURE);
}