diff options
Diffstat (limited to 'chroot.c')
| -rw-r--r-- | chroot.c | 20 |
1 files changed, 10 insertions, 10 deletions
@@ -20,8 +20,9 @@ */ #include "internal.h" +#include <stdlib.h> #include <stdio.h> -#include <unistd.h> +#include <errno.h> static const char chroot_usage[] = "NEWROOT [COMMAND...]\n" @@ -31,18 +32,17 @@ static const char chroot_usage[] = "NEWROOT [COMMAND...]\n" int chroot_main(int argc, char **argv) { - if (argc < 2) { + if ( (argc < 2) || (**(argv+1) == '-') ) { fprintf(stderr, "Usage: %s %s", *argv, chroot_usage); - return( FALSE); + exit( FALSE); } argc--; argv++; - fprintf(stderr, "new root: %s\n", *argv); - if (chroot (*argv) || (chdir ("/"))) { - perror("cannot chroot"); - return( FALSE); + fprintf(stderr, "chroot: cannot change root directory to %s: %s\n", + *argv, strerror(errno)); + exit( FALSE); } argc--; @@ -56,10 +56,10 @@ int chroot_main(int argc, char **argv) prog = getenv ("SHELL"); if (!prog) prog = "/bin/sh"; - fprintf(stderr, "no command. running: %s\n", prog); execlp (prog, prog, NULL); } - perror("cannot exec"); - return(FALSE); + fprintf(stderr, "chroot: cannot execute %s: %s\n", + *argv, strerror(errno)); + exit( FALSE); } |