diff options
| -rw-r--r-- | utils/settrans.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/utils/settrans.c b/utils/settrans.c index 399bd128..e01906b4 100644 --- a/utils/settrans.c +++ b/utils/settrans.c @@ -64,6 +64,8 @@ static struct argp_option options[] = {"exclusive", 'x', 0, 0, "Only set the translator if there is not one already"}, {"orphan", 'o', 0, 0, "Disconnect old translator from the filesystem " "(do not ask it to go away)"}, + {"underlying", 'U', "NODE", 0, "Open NODE and hand it to the translator " + "as the underlying node"}, {"chroot", 'C', 0, 0, "Instead of setting the node's translator, take following arguments up to" @@ -157,6 +159,7 @@ main(int argc, char *argv[]) char *pid_file = NULL; int excl = 0; int timeout = DEFAULT_TIMEOUT * 1000; /* ms */ + char *underlying_node_name = NULL; char **chroot_command = 0; char *chroot_chdir = "/"; @@ -202,6 +205,11 @@ main(int argc, char *argv[]) break; case 'o': orphan = 1; break; + case 'U': + underlying_node_name = strdup (arg); + if (underlying_node_name == NULL) + error(3, ENOMEM, "Failed to duplicate argument"); + break; case 'C': if (chroot_command) @@ -330,7 +338,20 @@ main(int argc, char *argv[]) return open_err; } - *underlying = node; + if (underlying_node_name) + { + *underlying = file_name_lookup (underlying_node_name, + flags | lookup_flags, 0666); + if (! MACH_PORT_VALID (*underlying)) + { + /* For the error message. */ + node_name = underlying_node_name; + open_err = errno; + return open_err; + } + } + else + *underlying = node; *underlying_type = MACH_MSG_TYPE_COPY_SEND; return 0; |