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/* vi: set sw=4 ts=4: */
/*
* chvt.c - aeb - 940227 - Change virtual terminal
*
* busyboxed by Erik Andersen
*/
#include "internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/ioctl.h>
/* From <linux/vt.h> */
#define VT_ACTIVATE 0x5606 /* make vt active */
#define VT_WAITACTIVE 0x5607 /* wait for vt active */
const char chvt_usage[] =
"chvt N\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nChanges the foreground virtual terminal to /dev/ttyN\n"
#endif
;
int chvt_main(int argc, char **argv)
{
int fd, num;
if ((argc != 2) || (**(argv + 1) == '-'))
usage (chvt_usage);
fd = get_console_fd("/dev/console");
num = atoi(argv[1]);
if (ioctl(fd, VT_ACTIVATE, num)) {
perror("VT_ACTIVATE");
exit(FALSE);
}
if (ioctl(fd, VT_WAITACTIVE, num)) {
perror("VT_WAITACTIVE");
exit(FALSE);
}
return(TRUE);
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/
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