yp_all.c

操作系统SunOS 4.1.3版本的源码

#if	!defined(lint) && defined(SCCSIDS)
static  char sccsid[] = "@(#)yp_all.c 1.1 92/07/30 Copyr 1985 Sun Micro";
#endif

#define	NULL 0
#include <sys/time.h>
#include <rpc/rpc.h>
#include <sys/syslog.h>
#include "yp_prot.h"
#include "ypv1_prot.h"
#include "ypclnt.h"


static struct timeval tcp_timout = {
	120,				/* 120 seconds */
	0
	};
extern int _yp_dobind();
extern unsigned int _ypsleeptime;
extern malloc_t malloc();

/*
 * This does the "glommed enumeration" stuff.  callback->foreach is the name
 * of a function which gets called per decoded key-value pair:
 *
 * (*callback->foreach)(status, key, keylen, val, vallen, callback->data);
 *
 * If the server we get back from _yp_dobind speaks the old protocol, this
 * returns YPERR_VERS, and does not attempt to emulate the new functionality
 * by using the old protocol.
 */
int
yp_all (domain, map, callback)
	char *domain;
	char *map;
	struct ypall_callback *callback;
{
	int domlen;
	int maplen;
	struct ypreq_nokey req;
	int reason;
	struct dom_binding *pdomb;
	enum clnt_stat s;

	if ((map == NULL) || (domain == NULL)) {
		return (YPERR_BADARGS);
	}

	domlen = strlen(domain);
	maplen = strlen(map);

	if ( (domlen == 0) || (domlen > YPMAXDOMAIN) ||
	    (maplen == 0) || (maplen > YPMAXMAP) ||
	    (callback == (struct ypall_callback *) NULL) ) {
		return (YPERR_BADARGS);
	}

	if (reason = _yp_dobind(domain, &pdomb) ) {
		return (reason);
	}

	if (pdomb->dom_vers == YPOLDVERS) {
		return (YPERR_VERS);
	}

	clnt_destroy(pdomb->dom_client);
	(void) close(pdomb->dom_socket);
	pdomb->dom_socket = RPC_ANYSOCK;
	pdomb->dom_server_port = pdomb->dom_server_addr.sin_port = 0;

	if ((pdomb->dom_client = clnttcp_create(&(pdomb->dom_server_addr),
	    YPPROG, YPVERS, &(pdomb->dom_socket), 0, 0)) ==
	    (CLIENT *) NULL) {
		    (void) syslog(LOG_ERR,
		    clnt_spcreateerror("yp_all - TCP channel create failure"));
		    return (YPERR_RPC);
	}

	req.domain = domain;
	req.map = map;

	s = clnt_call(pdomb->dom_client, YPPROC_ALL, xdr_ypreq_nokey, &req,
	    xdr_ypall, callback, tcp_timout);

	if (s != RPC_SUCCESS) {
		(void) syslog(LOG_ERR, clnt_sperror(pdomb->dom_client,
		    "yp_all - RPC clnt_call (TCP) failure"));
	}

	yp_unbind(domain);

	if (s == RPC_SUCCESS) {
		return (0);
	} else {
		return (YPERR_RPC);
	}
}