Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 2 | /* |
Glenn L McGrath | ebdc8b4 | 2002-09-16 03:47:48 +0000 | [diff] [blame] | 3 | * openvt.c - open a vt to run a command. |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 4 | * |
Glenn L McGrath | ebdc8b4 | 2002-09-16 03:47:48 +0000 | [diff] [blame] | 5 | * busyboxed by Quy Tonthat <quy@signal3.com> |
Glenn L McGrath | 0a3b010 | 2003-05-13 16:31:15 +0000 | [diff] [blame] | 6 | * hacked by Tito <farmatito@tiscali.it> |
Glenn L McGrath | ebdc8b4 | 2002-09-16 03:47:48 +0000 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 21 | */ |
| 22 | |
| 23 | /* getopt not needed */ |
| 24 | |
| 25 | #include <stdio.h> |
| 26 | #include <stdlib.h> |
| 27 | #include <unistd.h> |
| 28 | #include <fcntl.h> |
| 29 | #include <string.h> |
| 30 | #include <sys/types.h> |
Glenn L McGrath | a6bbf79 | 2002-12-08 12:08:37 +0000 | [diff] [blame] | 31 | #include <ctype.h> |
| 32 | |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 33 | #include "busybox.h" |
| 34 | |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 35 | int openvt_main(int argc, char **argv) |
| 36 | { |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 37 | int fd; |
Glenn L McGrath | dfb6211 | 2004-01-13 10:12:16 +0000 | [diff] [blame] | 38 | char vtname[sizeof VC_FORMAT + 2]; |
Glenn L McGrath | 0a3b010 | 2003-05-13 16:31:15 +0000 | [diff] [blame] | 39 | |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 40 | |
| 41 | if (argc < 3) |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 42 | bb_show_usage(); |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 43 | |
Glenn L McGrath | dfb6211 | 2004-01-13 10:12:16 +0000 | [diff] [blame] | 44 | /* check for Illegal vt number: < 1 or > 12 */ |
| 45 | sprintf(vtname, VC_FORMAT,(int)bb_xgetlarg(argv[1], 10, 1, 12)); |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 46 | |
Glenn L McGrath | 0a3b010 | 2003-05-13 16:31:15 +0000 | [diff] [blame] | 47 | argv+=2; |
| 48 | argc-=2; |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 49 | |
Glenn L McGrath | dfb6211 | 2004-01-13 10:12:16 +0000 | [diff] [blame] | 50 | if(fork() == 0) { |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 51 | /* leave current vt */ |
| 52 | |
| 53 | #ifdef ESIX_5_3_2_D |
| 54 | if (setpgrp() < 0) { |
| 55 | #else |
| 56 | if (setsid() < 0) { |
| 57 | #endif |
| 58 | |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 59 | bb_perror_msg_and_die("Unable to set new session"); |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 60 | } |
| 61 | close(0); /* so that new vt becomes stdin */ |
| 62 | |
| 63 | /* and grab new one */ |
Glenn L McGrath | 02e0355 | 2003-12-20 06:00:08 +0000 | [diff] [blame] | 64 | fd = bb_xopen(vtname, O_RDWR); |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 65 | |
| 66 | /* Reassign stdout and sterr */ |
| 67 | close(1); |
| 68 | close(2); |
| 69 | dup(fd); |
| 70 | dup(fd); |
| 71 | |
Glenn L McGrath | 0a3b010 | 2003-05-13 16:31:15 +0000 | [diff] [blame] | 72 | execvp(argv[0], argv); |
Glenn L McGrath | ec0c48c | 2002-09-16 03:16:06 +0000 | [diff] [blame] | 73 | _exit(1); |
| 74 | } |
| 75 | return EXIT_SUCCESS; |
| 76 | } |
| 77 | |
| 78 | /* |
| 79 | Local Variables: |
| 80 | c-file-style: "linux" |
| 81 | c-basic-offset: 4 |
| 82 | tab-width: 4 |
| 83 | End: |
| 84 | */ |