44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/* Copyright (c) 1984 AT&T */
|
|
/* All Rights Reserved */
|
|
|
|
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
|
|
/* The copyright notice above does not evidence any */
|
|
/* actual or intended publication of such source code. */
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)chroot.c 1.1 94/10/31 SMI"; /* from S5R3 1.5 */
|
|
#endif
|
|
|
|
# include <stdio.h>
|
|
# include <errno.h>
|
|
|
|
main(argc, argv)
|
|
char **argv;
|
|
{
|
|
extern char *sys_errlist[];
|
|
extern int sys_nerr;
|
|
|
|
if(argc < 3) {
|
|
printf("usage: chroot rootdir command arg ...\n");
|
|
exit(1);
|
|
}
|
|
argv[argc] = 0;
|
|
if(argv[argc-1] == (char *) -1) /* catches potential problems in
|
|
old 16 bit implimentations */
|
|
argv[argc-1] = (char *) -2;
|
|
if (chroot(argv[1]) < 0) {
|
|
perror(argv[1]);
|
|
exit(1);
|
|
}
|
|
if (chdir("/") < 0) {
|
|
printf("Can't chdir to new root\n");
|
|
exit(1);
|
|
}
|
|
execv(argv[2], &argv[2]);
|
|
if((errno > 0) && (errno <= sys_nerr))
|
|
printf("chroot: %s\n",sys_errlist[errno]);
|
|
else printf("chroot: exec failed, errno = %d\n",errno);
|
|
exit(1);
|
|
/* NOTREACHED */
|
|
}
|