Contents of /trunk/mkinitrd-magellan/busybox/console-tools/openvt.c
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Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
File MIME type: text/plain
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Sat Sep 1 22:45:15 2007 UTC (17 years ago) by niro
File MIME type: text/plain
File size: 902 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
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 "busybox.h" |
14 | |
15 | int openvt_main(int argc, char **argv) |
16 | { |
17 | int fd; |
18 | char vtname[sizeof(VC_FORMAT) + 2]; |
19 | |
20 | if (argc < 3) { |
21 | bb_show_usage(); |
22 | } |
23 | /* check for illegal vt number: < 1 or > 63 */ |
24 | sprintf(vtname, VC_FORMAT, (int)xatoul_range(argv[1], 1, 63)); |
25 | |
26 | if (fork() == 0) { |
27 | /* child */ |
28 | /* leave current vt (controlling tty) */ |
29 | setsid(); |
30 | /* and grab new one */ |
31 | fd = xopen(vtname, O_RDWR); |
32 | /* Reassign stdin, stdout and sterr */ |
33 | dup2(fd, STDIN_FILENO); |
34 | dup2(fd, STDOUT_FILENO); |
35 | dup2(fd, STDERR_FILENO); |
36 | while (fd > 2) close(fd--); |
37 | |
38 | execvp(argv[2], &argv[2]); |
39 | _exit(1); |
40 | } |
41 | return EXIT_SUCCESS; |
42 | } |