diff options
Diffstat (limited to 'hostmux/hostmux.c')
| -rw-r--r-- | hostmux/hostmux.c | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/hostmux/hostmux.c b/hostmux/hostmux.c index b5c4230e..c925cdfc 100644 --- a/hostmux/hostmux.c +++ b/hostmux/hostmux.c @@ -30,13 +30,15 @@ int netfs_maxsymlinks = 25; volatile struct mapped_time_value *hostmux_mapped_time; +#define DEFAULT_HOST_PAT "${host}" + /* Startup options. */ static const struct argp_option options[] = { { "host-pattern", 'H', "PAT", 0, "The string to replace in the translator specification with the hostname;" " if empty, or doesn't occur, the hostname is appended as additional" - " argument instead (default `${host}')" }, + " argument instead (default `" DEFAULT_HOST_PAT "')" }, { 0 } }; static const char args_doc[] = "TRANSLATOR [ARG...]"; @@ -44,14 +46,43 @@ static const char doc[] = "A translator for invoking host-specific translators" "\vThis translator appears like a directory in which hostnames can be" " looked up, and will start TRANSLATOR to service each resulting node."; - + +/* Return an argz string describing the current options. Fill *ARGZ + with a pointer to newly malloced storage holding the list and *LEN + to the length of that storage. */ +error_t +netfs_append_args (char **argz, size_t *argz_len) +{ + char buf[80]; + error_t err = 0; + struct hostmux *mux = netfs_root_node->nn->mux; + +#define FOPT(fmt, arg) \ + do { \ + if (! err) \ + { \ + snprintf (buf, sizeof buf, fmt, arg); \ + err = argz_add (argz, argz_len, buf); \ + } \ + } while (0) + + if (strcmp (mux->host_pat, DEFAULT_HOST_PAT) != 0) + FOPT ("--host-pattern=%s", mux->host_pat); + + if (! err) + err = argz_append (argz, argz_len, + mux->trans_template, mux->trans_template_len); + + return err; +} + int main (int argc, char **argv) { error_t err; struct stat ul_stat; mach_port_t bootstrap; - struct hostmux mux = { host_pat: "${host}", next_fileno: 10 }; + struct hostmux mux = { host_pat: DEFAULT_HOST_PAT, next_fileno: 10 }; struct netnode root_nn = { mux: &mux }; error_t parse_opt (int key, char *arg, struct argp_state *state) |