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openvt applet by Quy Tonthat

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This commit is contained in:
Glenn L McGrath 2002-09-16 03:16:06 +00:00
parent 6714862bdd
commit ec0c48cb29
5 changed files with 96 additions and 0 deletions
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1
console-tools/Makefile.in
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@ -30,6 +30,7 @@ CONSOLETOOLS_DIR-$(CONFIG_DUMPKMAP) += dumpkmap.o
CONSOLETOOLS_DIR-$(CONFIG_LOADACM) += loadacm.o
CONSOLETOOLS_DIR-$(CONFIG_LOADFONT) += loadfont.o
CONSOLETOOLS_DIR-$(CONFIG_LOADKMAP) += loadkmap.o
CONSOLETOOLS_DIR-$(CONFIG_OPENVT) += openvt.o
CONSOLETOOLS_DIR-$(CONFIG_RESET) += reset.o
CONSOLETOOLS_DIR-$(CONFIG_SETKEYCODES) += setkeycodes.o

1
console-tools/config.in
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@ -12,6 +12,7 @@ bool 'dumpkmap' CONFIG_DUMPKMAP
bool 'loadacm' CONFIG_LOADACM
bool 'loadfont' CONFIG_LOADFONT
bool 'loadkmap' CONFIG_LOADKMAP
bool 'openvt' CONFIG_OPENVT
bool 'reset' CONFIG_RESET
bool 'setkeycodes' CONFIG_SETKEYCODES

84
console-tools/openvt.c Normal file
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@ -0,0 +1,84 @@
/* vi: set sw=4 ts=4: */
/*
* openvt.c - open a vt to run a command.
*
* busyboxed by Quy Tonthat <quy@signal3.com>
*/
/* getopt not needed */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#include "busybox.h"
#define VTNAME "/dev/tty%d"
int openvt_main(int argc, char **argv)
{
int pid;
int fd;
int vtno;
char vtname[sizeof VTNAME + 2];
char * cmd = NULL;
char * cmd_args = NULL;
if (argc < 3)
show_usage();
if (!isdigit(argv[1][0]))
show_usage();
vtno = (int) atol(argv[1]);
/* if (vtno <= 0 || vtno > 63) */
if (vtno <= 0 || vtno > 12)
error_msg_and_die("Illegal vt number (%d)", vtno);
sprintf(vtname, VTNAME, vtno);
cmd = argv[2];
cmd_args = xmalloc(80);
cmd_args[0] = '\0';
if((pid = fork()) == 0) {
/* leave current vt */
#ifdef ESIX_5_3_2_D
if (setpgrp() < 0) {
#else
if (setsid() < 0) {
#endif
perror_msg_and_die("Unable to set new session");
}
close(0); /* so that new vt becomes stdin */
/* and grab new one */
if ((fd = open(vtname, O_RDWR)) == -1)
perror_msg_and_die("could not open %s", vtname);
/* Reassign stdout and sterr */
close(1);
close(2);
dup(fd);
dup(fd);
execvp(cmd, &argv[2]);
/*execlp(cmd, cmd_args);*/
_exit(1);
}
return EXIT_SUCCESS;
}
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/

3
include/applets.h
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@ -341,6 +341,9 @@
#ifdef CONFIG_OD
APPLET(od, od_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
#endif
#ifdef CONFIG_OPENVT
APPLET(openvt, openvt_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
#endif
#ifdef CONFIG_PASSWD
APPLET(passwd, passwd_main, _BB_DIR_USR_BIN, _BB_SUID_ALWAYS)
#endif

7
include/usage.h
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@ -1347,6 +1347,13 @@
"Write an unambiguous representation, octal bytes by default, of FILE\n"\
"to standard output. With no FILE, or when FILE is -, read standard input."
#define openvt_trivial_usage \
"<vtnum> <COMMAND> [ARGS...]"
#define openvt_full_usage \
"Start a command on a new virtual terminal"
#define openvt_example_usage \
"openvt 2 /bin/ash\n"
#ifdef CONFIG_FEATURE_SHA1_PASSWORDS
#define PASSWORD_ALG_TYPES(a) a
#else