1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote 16 * products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <rpc/rpc.h> 36 #include <rpcsvc/yp.h> 37 #include <stdlib.h> 38 #include <string.h> 39 40 extern int (*ypresp_allfn)(); 41 extern void *ypresp_data; 42 43 /* 44 * I'm leaving the xdr_datum() function in purely for backwards 45 * compatibility. yplib.c doesn't actually use it, but it's listed 46 * in yp_prot.h as being available, so it's probably a good idea to 47 * leave it in case somebody goes looking for it. 48 */ 49 typedef struct { 50 char *dptr; 51 int dsize; 52 } datum; 53 54 bool_t 55 xdr_datum(XDR *xdrs, datum *objp) 56 { 57 if (!xdr_bytes(xdrs, (char **)&objp->dptr, (u_int *)&objp->dsize, YPMAXRECORD)) { 58 return (FALSE); 59 } 60 return (TRUE); 61 } 62 63 bool_t 64 xdr_ypresp_all_seq(XDR *xdrs, u_long *objp) 65 { 66 struct ypresp_all out; 67 u_long status; 68 char *key, *val; 69 int r; 70 71 bzero(&out, sizeof out); 72 while (1) { 73 if (!xdr_ypresp_all(xdrs, &out)) { 74 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 75 *objp = YP_YPERR; 76 return (FALSE); 77 } 78 if (out.more == 0) { 79 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 80 *objp = YP_NOMORE; 81 return (TRUE); 82 } 83 status = out.ypresp_all_u.val.stat; 84 switch (status) { 85 case YP_TRUE: 86 key = (char *)malloc(out.ypresp_all_u.val.key.keydat_len + 1); 87 if (key == NULL) { 88 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 89 *objp = YP_YPERR; 90 return (FALSE); 91 } 92 bcopy(out.ypresp_all_u.val.key.keydat_val, key, 93 out.ypresp_all_u.val.key.keydat_len); 94 key[out.ypresp_all_u.val.key.keydat_len] = '\0'; 95 val = (char *)malloc(out.ypresp_all_u.val.val.valdat_len + 1); 96 if (val == NULL) { 97 free(key); 98 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 99 *objp = YP_YPERR; 100 return (FALSE); 101 } 102 bcopy(out.ypresp_all_u.val.val.valdat_val, val, 103 out.ypresp_all_u.val.val.valdat_len); 104 val[out.ypresp_all_u.val.val.valdat_len] = '\0'; 105 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 106 107 r = (*ypresp_allfn)(status, 108 key, out.ypresp_all_u.val.key.keydat_len, 109 val, out.ypresp_all_u.val.val.valdat_len, 110 ypresp_data); 111 *objp = status; 112 free(key); 113 free(val); 114 if (r) 115 return (TRUE); 116 break; 117 case YP_NOMORE: 118 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 119 *objp = YP_NOMORE; 120 return (TRUE); 121 default: 122 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 123 *objp = status; 124 return (TRUE); 125 } 126 } 127 } 128