More stuff works.

-Erik
This commit is contained in:
Eric Andersen
1999-10-05 22:58:32 +00:00
parent cc8ed39b24
commit 2b69c40e80
17 changed files with 494 additions and 1171 deletions

View File

@ -1,32 +1,65 @@
/*
* Mini chroot implementation for busybox
*
* Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "internal.h"
#include <stdio.h>
#include <unistd.h>
const char chroot_usage[] = "chroot directory [command]\n"
"Run a command with special root directory.\n";
static const char chroot_usage[] = "NEWROOT [COMMAND...]\n"
"Run COMMAND with root directory set to NEWROOT.\n";
extern int
chroot_main (struct FileInfo *i, int argc, char **argv)
int chroot_main(int argc, char **argv)
{
char *prog;
if (argc < 2) {
fprintf(stderr, "Usage: %s %s", *argv, chroot_usage);
return( FALSE);
}
argc--;
argv++;
if (chroot (argv[1]))
{
name_and_error ("cannot chroot to that directory");
return 1;
fprintf(stderr, "new root: %s\n", *argv);
if (chroot (*argv) || (chdir ("/"))) {
perror("cannot chroot");
return( FALSE);
}
if (argc > 2)
{
execvp (argv[2], argv + 2);
argc--;
argv++;
if (argc >= 1) {
fprintf(stderr, "command: %s\n", *argv);
execvp (*argv, argv);
}
else
{
prog = getenv ("SHELL");
if (!prog)
prog = "/bin/sh";
execlp (prog, prog, NULL);
else {
char *prog;
prog = getenv ("SHELL");
if (!prog)
prog = "/bin/sh";
fprintf(stderr, "no command. running: %s\n", prog);
execlp (prog, prog, NULL);
}
name_and_error ("cannot exec");
return 1;
perror("cannot exec");
return(FALSE);
}