/* * Copyright (c) 1995 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/libexec/ypxfr/ypxfr_misc.c,v 1.9.2.2 2002/02/15 00:46:54 des Exp $ */ #include #include #include #include #include #include #include struct dom_binding {}; #include #include "ypxfr_extern.h" const char * ypxfrerr_string(ypxfrstat code) { switch (code) { case YPXFR_SUCC: return ("Map successfully transferred"); break; case YPXFR_AGE: return ("Master's version not newer"); break; case YPXFR_NOMAP: return ("No such map in server's domain"); break; case YPXFR_NODOM: return ("Domain not supported by server"); break; case YPXFR_RSRC: return ("Local resource allocation failure"); break; case YPXFR_RPC: return ("RPC failure talking to server"); break; case YPXFR_MADDR: return ("Could not get master server address"); break; case YPXFR_YPERR: return ("NIS server/map database error"); break; case YPXFR_BADARGS: return ("Request arguments bad"); break; case YPXFR_DBM: return ("Local database operation failed"); break; case YPXFR_FILE: return ("Local file I/O operation failed"); break; case YPXFR_SKEW: return ("Map version skew during transfer"); break; case YPXFR_CLEAR: return ("Couldn't send \"clear\" request to local ypserv"); break; case YPXFR_FORCE: return ("No local order number in map -- use -f flag"); break; case YPXFR_XFRERR: return ("General ypxfr error"); break; case YPXFR_REFUSED: return ("Transfer request refused by ypserv"); break; default: return ("Unknown error code"); break; } } /* * These are wrappers for the usual yp_master() and yp_order() functions. * They can use either local yplib functions (the real yp_master() and * yp_order()) or do direct RPCs to a specified server. The latter is * necessary if ypxfr is run on a machine that isn't configured as an * NIS client (this can happen very easily: a given machine need not be * an NIS client in order to be an NIS server). */ /* * Careful: yp_master() returns a pointer to a dynamically allocated * buffer. Calling ypproc_master_2() ourselves also returns a pointer * to dynamically allocated memory, though this time it's memory * allocated by the XDR routines. We have to rememver to free() or * xdr_free() the memory as required to avoid leaking memory. */ char * ypxfr_get_master(char *domain, char *map, char *source, const int yplib) { static char mastername[MAXPATHLEN + 2]; bzero((char *)&mastername, sizeof(mastername)); if (yplib) { int res; char *master; if ((res = yp_master(domain, map, &master))) { switch (res) { case YPERR_DOMAIN: yp_errno = YPXFR_NODOM; break; case YPERR_MAP: yp_errno = YPXFR_NOMAP; break; case YPERR_YPERR: default: yp_errno = YPXFR_YPERR; break; } return(NULL); } else { snprintf(mastername, sizeof(mastername), "%s", master); free(master); return((char *)&mastername); } } else { CLIENT *clnt; ypresp_master *resp; ypreq_nokey req; if ((clnt = clnt_create(source,YPPROG,YPVERS,"udp")) == NULL) { yp_error("%s",clnt_spcreateerror("failed to \ create udp handle to ypserv")); yp_errno = YPXFR_RPC; return(NULL); } req.map = map; req.domain = domain; if ((resp = ypproc_master_2(&req, clnt)) == NULL) { yp_error("%s",clnt_sperror(clnt,"YPPROC_MASTER \ failed")); clnt_destroy(clnt); yp_errno = YPXFR_RPC; return(NULL); } clnt_destroy(clnt); if (resp->stat != YP_TRUE) { switch (resp->stat) { case YP_NODOM: yp_errno = YPXFR_NODOM; break; case YP_NOMAP: yp_errno = YPXFR_NOMAP; break; case YP_YPERR: default: yp_errno = YPXFR_YPERR; break; } return(NULL); } snprintf(mastername, sizeof(mastername), "%s", resp->peer); /* xdr_free(xdr_ypresp_master, (char *)&resp); */ return((char *)&mastername); } } unsigned long ypxfr_get_order(char *domain, char *map, char *source, const int yplib) { if (yplib) { unsigned long order; int res; if ((res = yp_order(domain, map, (int *)&order))) { switch (res) { case YPERR_DOMAIN: yp_errno = YPXFR_NODOM; break; case YPERR_MAP: yp_errno = YPXFR_NOMAP; break; case YPERR_YPERR: default: yp_errno = YPXFR_YPERR; break; } return(0); } else return(order); } else { CLIENT *clnt; ypresp_order *resp; ypreq_nokey req; if ((clnt = clnt_create(source,YPPROG,YPVERS,"udp")) == NULL) { yp_error("%s",clnt_spcreateerror("couldn't create \ udp handle to ypserv")); yp_errno = YPXFR_RPC; return(0); } req.map = map; req.domain = domain; if ((resp = ypproc_order_2(&req, clnt)) == NULL) { yp_error("%s", clnt_sperror(clnt, "YPPROC_ORDER \ failed")); clnt_destroy(clnt); yp_errno = YPXFR_RPC; return(0); } clnt_destroy(clnt); if (resp->stat != YP_TRUE) { switch (resp->stat) { case YP_NODOM: yp_errno = YPXFR_NODOM; break; case YP_NOMAP: yp_errno = YPXFR_NOMAP; break; case YP_YPERR: default: yp_errno = YPXFR_YPERR; break; } return(0); } return(resp->ordernum); } } int ypxfr_match(char *server, char *domain, char *map, char *key, unsigned long keylen) { ypreq_key ypkey; ypresp_val *ypval; CLIENT *clnt; static char buf[YPMAXRECORD + 2]; bzero((char *)buf, sizeof(buf)); if ((clnt = clnt_create(server, YPPROG,YPVERS,"udp")) == NULL) { yp_error("failed to create UDP handle: %s", clnt_spcreateerror(server)); return(0); } ypkey.domain = domain; ypkey.map = map; ypkey.key.keydat_len = keylen; ypkey.key.keydat_val = key; if ((ypval = ypproc_match_2(&ypkey, clnt)) == NULL) { clnt_destroy(clnt); yp_error("%s: %s", server, clnt_sperror(clnt,"YPPROC_MATCH failed")); return(0); } clnt_destroy(clnt); if (ypval->stat != YP_TRUE) { xdr_free((xdrproc_t)xdr_ypresp_val, ypval); return(0); } xdr_free((xdrproc_t)xdr_ypresp_val, ypval); return(1); }