hush/console-tools/deallocvt.c

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1999-10-25 23:32:44 +00:00
/*
* disalloc.c - aeb - 940501 - Disallocate virtual terminal(s)
* Renamed deallocvt.
*/
1999-10-28 16:06:25 +00:00
#include "internal.h"
1999-10-25 23:32:44 +00:00
#include <stdlib.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <linux/vt.h>
#include <stdio.h>
extern int getfd(void);
char *progname;
int
deallocvt_main(int argc, char *argv[]) {
int fd, num, i;
if (argc < 1) /* unlikely */
exit(1);
progname = argv[0];
fd = get_console_fd("/dev/console");
if (argc == 1) {
/* deallocate all unused consoles */
if (ioctl(fd,VT_DISALLOCATE,0)) {
perror("VT_DISALLOCATE");
exit(1);
}
} else
for (i = 1; i < argc; i++) {
num = atoi(argv[i]);
if (num == 0)
fprintf(stderr, "%s: 0: illegal VT number\n", progname);
else if (num == 1)
fprintf(stderr, "%s: VT 1 cannot be deallocated\n", progname);
else
if (ioctl(fd,VT_DISALLOCATE,num)) {
perror("VT_DISALLOCATE");
fprintf(stderr, "%s: could not deallocate console %d\n",
progname, num);
exit(1);
}
}
exit(0);
}