+/* vi: set sw=4 ts=4: */
/*
* Mini chroot implementation for busybox
*
static const char chroot_usage[] = "chroot NEWROOT [COMMAND...]\n\n"
-"Run COMMAND with root directory set to NEWROOT.\n";
+
+ "Run COMMAND with root directory set to NEWROOT.\n";
int chroot_main(int argc, char **argv)
{
- if ( (argc < 2) || (**(argv+1) == '-') ) {
- usage( chroot_usage);
- }
- argc--;
- argv++;
+ if ((argc < 2) || (**(argv + 1) == '-')) {
+ usage(chroot_usage);
+ }
+ argc--;
+ argv++;
+
+ if (chroot(*argv) || (chdir("/"))) {
+ fprintf(stderr, "chroot: cannot change root directory to %s: %s\n",
+ *argv, strerror(errno));
+ exit(FALSE);
+ }
- if (chroot (*argv) || (chdir ("/"))) {
- fprintf(stderr, "chroot: cannot change root directory to %s: %s\n",
- *argv, strerror(errno));
- exit( FALSE);
- }
+ argc--;
+ argv++;
+ if (argc >= 1) {
+ fprintf(stderr, "command: %s\n", *argv);
+ execvp(*argv, argv);
+ } else {
+ char *prog;
- argc--;
- argv++;
- if (argc >= 1) {
- fprintf(stderr, "command: %s\n", *argv);
- execvp (*argv, argv);
- }
- else {
- char *prog;
- prog = getenv ("SHELL");
- if (!prog)
- prog = "/bin/sh";
- execlp (prog, prog, NULL);
- }
- fprintf(stderr, "chroot: cannot execute %s: %s\n",
- *argv, strerror(errno));
- exit( FALSE);
+ prog = getenv("SHELL");
+ if (!prog)
+ prog = "/bin/sh";
+ execlp(prog, prog, NULL);
+ }
+ fprintf(stderr, "chroot: cannot execute %s: %s\n",
+ *argv, strerror(errno));
+ exit(FALSE);
}
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/