source: branches/stable/mindi-busybox/console-tools/openvt.c @ 821

Last change on this file since 821 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 1.0 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 *  openvt.c - open a vt to run a command.
4 *
5 *  busyboxed by Quy Tonthat <quy@signal3.com>
6 *  hacked by Tito <farmatito@tiscali.it>
7 *
8 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
9 */
10
11/* getopt not needed */
12
13#include <stdio.h>
14#include <stdlib.h>
15#include <unistd.h>
16#include <fcntl.h>
17#include <string.h>
18#include <sys/types.h>
19#include <ctype.h>
20
21#include "busybox.h"
22
23int openvt_main(int argc, char **argv)
24{
25    int fd;
26    char vtname[sizeof(VC_FORMAT) + 2];
27
28
29    if (argc < 3) {
30        bb_show_usage();
31    }
32    /* check for Illegal vt number: < 1 or > 12 */
33    sprintf(vtname, VC_FORMAT, (int)bb_xgetlarg(argv[1], 10, 1, 12));
34
35    if (fork() == 0) {
36        /* leave current vt */
37        if (setsid() < 0) {
38            bb_perror_msg_and_die("setsid");
39        }
40        close(0);           /* so that new vt becomes stdin */
41
42        /* and grab new one */
43        fd = bb_xopen(vtname, O_RDWR);
44
45        /* Reassign stdout and sterr */
46        dup2(fd, STDOUT_FILENO);
47        dup2(fd, STDERR_FILENO);
48
49        execvp(argv[2], &argv[2]);
50        _exit(1);
51    }
52    return EXIT_SUCCESS;
53}
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