diff options
Diffstat (limited to 'nis')
| -rw-r--r-- | nis/ypclnt.c | 52 |
1 files changed, 48 insertions, 4 deletions
diff --git a/nis/ypclnt.c b/nis/ypclnt.c index c661ee3262..a20d4926aa 100644 --- a/nis/ypclnt.c +++ b/nis/ypclnt.c @@ -25,8 +25,14 @@ #include <rpcsvc/yp.h> #include <rpcsvc/ypclnt.h> #include <rpcsvc/ypupd.h> +#include <sys/uio.h> #include <bits/libc-lock.h> +/* This should only be defined on systems with a BSD compatible ypbind */ +#ifndef BINDINGDIR +# define BINDINGDIR "/var/yp/binding" +#endif + struct dom_binding { struct dom_binding *dom_pnext; @@ -91,6 +97,44 @@ __yp_bind (const char *domain, dom_binding **ypdb) return YPERR_YPBIND; } +#if USE_BINDINGDIR + if (ysd->dom_vers < 1) + { + char path[sizeof (BINDINGDIR) - 1 + strlen (domain) + 10]; + struct iovec vec[2]; + u_short port; + int fd; + + sprintf (path, "%s/%s.%ld", BINDINGDIR, domain, YPBINDVERS); + fd = open (path, O_RDONLY); + if (fd >= 0) + { + /* We have a binding file and could save a RPC call */ + vec[0].iov_base = &port; + vec[0].iov_len = sizeof (port); + vec[1].iov_base = &ypbr; + vec[1].iov_len = sizeof (ypbr); + + if (readv (fd, vec, 2) == vec[0].iov_len + vec[1].iov_len) + { + memset (&ysd->dom_server_addr, '\0', + sizeof ysd->dom_server_addr); + ysd->dom_server_addr.sin_family = AF_INET; + memcpy (&ysd->dom_server_addr.sin_port, + ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port, + sizeof (ysd->dom_server_addr.sin_port)); + memcpy (&ysd->dom_server_addr.sin_addr.s_addr, + ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr, + sizeof (ysd->dom_server_addr.sin_addr.s_addr)); + ysd->dom_vers = YPVERS; + strncpy (ysd->dom_domain, domain, YPMAXDOMAIN); + ysd->dom_domain[YPMAXDOMAIN] = '\0'; + } + close (fd); + } + } +#endif /* USE_BINDINGDIR */ + if (ysd->dom_vers == -1) { if(ysd->dom_client) @@ -116,12 +160,12 @@ __yp_bind (const char *domain, dom_binding **ypdb) ** If not, it's possible someone has registered a bogus ** ypbind with the portmapper and is trying to trick us. */ - if (ntohs(clnt_saddr.sin_port) >= IPPORT_RESERVED) + if (ntohs (clnt_saddr.sin_port) >= IPPORT_RESERVED) { - clnt_destroy(client); + clnt_destroy (client); if (is_new) - free(ysd); - return(YPERR_YPBIND); + free (ysd); + return YPERR_YPBIND; } if (clnt_call (client, YPBINDPROC_DOMAIN, |