busybox/coreutils/chroot.c

33 lines
596 B
C
Raw Normal View History

1999-10-06 00:24:54 +08:00
#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";
extern int
chroot_main (struct FileInfo *i, int argc, char **argv)
{
char *prog;
if (chroot (argv[1]))
{
name_and_error ("cannot chroot to that directory");
return 1;
}
if (argc > 2)
{
execvp (argv[2], argv + 2);
}
else
{
prog = getenv ("SHELL");
if (!prog)
prog = "/bin/sh";
execlp (prog, prog, NULL);
}
name_and_error ("cannot exec");
return 1;
}