diff options
Diffstat (limited to 'usr.sbin/ypbind/ypbind.c')
| -rw-r--r-- | usr.sbin/ypbind/ypbind.c | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/usr.sbin/ypbind/ypbind.c b/usr.sbin/ypbind/ypbind.c index fc8bc94..3771de6 100644 --- a/usr.sbin/ypbind/ypbind.c +++ b/usr.sbin/ypbind/ypbind.c @@ -28,7 +28,7 @@ */ #ifndef LINT -static char rcsid[] = "$Id: ypbind.c,v 1.23 1997/02/22 16:14:56 peter Exp $"; +static char rcsid[] = "$Id: ypbind.c,v 1.24 1997/04/10 14:18:03 wpaul Exp $"; #endif #include <sys/param.h> @@ -61,6 +61,7 @@ static char rcsid[] = "$Id: ypbind.c,v 1.23 1997/02/22 16:14:56 peter Exp $"; #include <rpcsvc/yp.h> struct dom_binding{}; #include <rpcsvc/ypclnt.h> +#include "yp_ping.h" #ifndef BINDINGDIR #define BINDINGDIR "/var/yp/binding" @@ -121,6 +122,7 @@ int ppid; */ #define RESTRICTED_SERVERS 10 int yp_restricted = 0; +int yp_manycast = 0; struct in_addr restricted_addrs[RESTRICTED_SERVERS]; /* No more than MAX_CHILDREN child broadcasters at a time. */ @@ -417,6 +419,8 @@ char **argv; ypsecuremode++; else if (strcmp("-S", argv[i]) == 0 && argc > i) yp_restricted_mode(argv[i+1]); + else if (strcmp("-m", argv[i]) == 0) + yp_manycast++; } /* blow away everything in BINDINGDIR (if it exists) */ @@ -711,6 +715,40 @@ struct _dom_binding *ypdb; } close(yplockfd); + /* + * Special 'many-cast' behavior. If we're in restricted mode, + * we have a list of possible server addresses to try. What + * we can do is transmit to each ypserv's YPPROC_DOMAIN_NONACK + * procedure and time the replies. Whoever replies fastest + * gets to be our server. Note that this is not a broadcast + * operation: we transmit uni-cast datagrams only. + */ + if (yp_restricted && yp_manycast) { + short port; + int i; + struct sockaddr_in sin; + + i = __yp_ping(restricted_addrs, yp_restricted, + ypdb->dom_domain, &port); + if (i == -1) { + bzero((char *)&ypdb->dom_server_addr, + sizeof(struct sockaddr_in)); + if (tell_parent(ypdb->dom_domain, + &ypdb->dom_server_addr)) + syslog(LOG_WARNING, "lost connection to parent"); + } else { + bzero((char *)&sin, sizeof(struct sockaddr_in)); + bcopy((char *)&restricted_addrs[i], + (char *)&sin.sin_addr, sizeof(struct in_addr)); + sin.sin_family = AF_INET; + sin.sin_port = port; + if (tell_parent(broad_domain->dom_domain, &sin)) + syslog(LOG_WARNING, + "lost connection to parent"); + } + _exit(0); + } + retries = 0; { @@ -729,7 +767,7 @@ struct _dom_binding *ypdb; syslog(LOG_WARNING, "lost connection to parent"); } - exit(0); + _exit(0); } /* @@ -981,6 +1019,6 @@ char *args; /* ypset and ypsetme not allowed with restricted mode */ ypsetmode = YPSET_NO; - yp_restricted = 1; + yp_restricted = i; return; } |
