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 #include <rpc/rpc.h> 34 #include <rpcsvc/yp.h> 35 #include <stdlib.h> 36 #include <string.h> 37 38 extern int (*ypresp_allfn)(u_long, char *, int, char *, int, void *); 39 extern void *ypresp_data; 40 41 /* 42 * I'm leaving the xdr_datum() function in purely for backwards 43 * compatibility. yplib.c doesn't actually use it, but it's listed 44 * in yp_prot.h as being available, so it's probably a good idea to 45 * leave it in case somebody goes looking for it. 46 */ 47 typedef struct { 48 char *dptr; 49 int dsize; 50 } datum; 51 52 bool_t 53 xdr_datum(XDR *xdrs, datum *objp) 54 { 55 if (!xdr_bytes(xdrs, (char **)&objp->dptr, (u_int *)&objp->dsize, YPMAXRECORD)) { 56 return (FALSE); 57 } 58 return (TRUE); 59 } 60 61 bool_t 62 xdr_ypresp_all_seq(XDR *xdrs, u_long *objp) 63 { 64 struct ypresp_all out; 65 u_long status; 66 char *key, *val; 67 int r; 68 69 bzero(&out, sizeof out); 70 while (1) { 71 if (!xdr_ypresp_all(xdrs, &out)) { 72 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 73 *objp = YP_YPERR; 74 return (FALSE); 75 } 76 if (out.more == 0) { 77 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 78 *objp = YP_NOMORE; 79 return (TRUE); 80 } 81 status = out.ypresp_all_u.val.stat; 82 switch (status) { 83 case YP_TRUE: 84 key = (char *)malloc(out.ypresp_all_u.val.key.keydat_len + 1); 85 if (key == NULL) { 86 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 87 *objp = YP_YPERR; 88 return (FALSE); 89 } 90 bcopy(out.ypresp_all_u.val.key.keydat_val, key, 91 out.ypresp_all_u.val.key.keydat_len); 92 key[out.ypresp_all_u.val.key.keydat_len] = '\0'; 93 val = (char *)malloc(out.ypresp_all_u.val.val.valdat_len + 1); 94 if (val == NULL) { 95 free(key); 96 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 97 *objp = YP_YPERR; 98 return (FALSE); 99 } 100 bcopy(out.ypresp_all_u.val.val.valdat_val, val, 101 out.ypresp_all_u.val.val.valdat_len); 102 val[out.ypresp_all_u.val.val.valdat_len] = '\0'; 103 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 104 105 r = (*ypresp_allfn)(status, 106 key, out.ypresp_all_u.val.key.keydat_len, 107 val, out.ypresp_all_u.val.val.valdat_len, 108 ypresp_data); 109 *objp = status; 110 free(key); 111 free(val); 112 if (r) 113 return (TRUE); 114 break; 115 case YP_NOMORE: 116 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 117 *objp = YP_NOMORE; 118 return (TRUE); 119 default: 120 xdr_free((xdrproc_t)xdr_ypresp_all, &out); 121 *objp = status; 122 return (TRUE); 123 } 124 } 125 } 126