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Glenn L McGrathec0c48c2002-09-16 03:16:06 +00001/* vi: set sw=4 ts=4: */
Glenn L McGrathec0c48c2002-09-16 03:16:06 +00002/*
Glenn L McGrathebdc8b42002-09-16 03:47:48 +00003 * openvt.c - open a vt to run a command.
Glenn L McGrathec0c48c2002-09-16 03:16:06 +00004 *
Glenn L McGrathebdc8b42002-09-16 03:47:48 +00005 * busyboxed by Quy Tonthat <quy@signal3.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Glenn L McGrathec0c48c2002-09-16 03:16:06 +000020 */
21
22/* getopt not needed */
23
24#include <stdio.h>
25#include <stdlib.h>
26#include <unistd.h>
27#include <fcntl.h>
28#include <string.h>
29#include <sys/types.h>
30#include "busybox.h"
31
32#define VTNAME "/dev/tty%d"
33
34int openvt_main(int argc, char **argv)
35{
36 int pid;
37 int fd;
38 int vtno;
39 char vtname[sizeof VTNAME + 2];
40 char * cmd = NULL;
41 char * cmd_args = NULL;
42
43 if (argc < 3)
44 show_usage();
45
46 if (!isdigit(argv[1][0]))
47 show_usage();
48
49 vtno = (int) atol(argv[1]);
50
51 /* if (vtno <= 0 || vtno > 63) */
52 if (vtno <= 0 || vtno > 12)
53 error_msg_and_die("Illegal vt number (%d)", vtno);
54
55 sprintf(vtname, VTNAME, vtno);
56
57 cmd = argv[2];
58 cmd_args = xmalloc(80);
59 cmd_args[0] = '\0';
60
61 if((pid = fork()) == 0) {
62 /* leave current vt */
63
64#ifdef ESIX_5_3_2_D
65 if (setpgrp() < 0) {
66#else
67 if (setsid() < 0) {
68#endif
69
70 perror_msg_and_die("Unable to set new session");
71 }
72 close(0); /* so that new vt becomes stdin */
73
74 /* and grab new one */
75 if ((fd = open(vtname, O_RDWR)) == -1)
76 perror_msg_and_die("could not open %s", vtname);
77
78 /* Reassign stdout and sterr */
79 close(1);
80 close(2);
81 dup(fd);
82 dup(fd);
83
84 execvp(cmd, &argv[2]);
85 /*execlp(cmd, cmd_args);*/
86 _exit(1);
87 }
88 return EXIT_SUCCESS;
89}
90
91/*
92Local Variables:
93c-file-style: "linux"
94c-basic-offset: 4
95tab-width: 4
96End:
97*/