clnt_perror.c revision 330897
1/* $NetBSD: clnt_perror.c,v 1.24 2000/06/02 23:11:07 fvdl Exp $ */ 2 3 4/*- 5 * SPDX-License-Identifier: BSD-3-Clause 6 * 7 * Copyright (c) 2009, Sun Microsystems, Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions are met: 12 * - Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * - Redistributions in binary form must reproduce the above copyright notice, 15 * this list of conditions and the following disclaimer in the documentation 16 * and/or other materials provided with the distribution. 17 * - Neither the name of Sun Microsystems, Inc. nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34#if defined(LIBC_SCCS) && !defined(lint) 35static char *sccsid2 = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro"; 36static char *sccsid = "@(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC"; 37#endif 38#include <sys/cdefs.h> 39__FBSDID("$FreeBSD: stable/11/lib/libc/rpc/clnt_perror.c 330897 2018-03-14 03:19:51Z eadler $"); 40 41/* 42 * clnt_perror.c 43 * 44 * Copyright (C) 1984, Sun Microsystems, Inc. 45 * 46 */ 47#include "namespace.h" 48#include <assert.h> 49#include <stdio.h> 50#include <stdlib.h> 51#include <string.h> 52 53#include <rpc/rpc.h> 54#include <rpc/types.h> 55#include <rpc/auth.h> 56#include <rpc/clnt.h> 57#include "un-namespace.h" 58 59static char *buf; 60 61static char *_buf(void); 62static char *auth_errmsg(enum auth_stat); 63#define CLNT_PERROR_BUFLEN 256 64 65static char * 66_buf(void) 67{ 68 69 if (buf == NULL) 70 buf = malloc(CLNT_PERROR_BUFLEN); 71 return (buf); 72} 73 74/* 75 * Print reply error info 76 */ 77char * 78clnt_sperror(CLIENT *rpch, const char *s) 79{ 80 struct rpc_err e; 81 char *err; 82 char *str; 83 char *strstart; 84 size_t len, i; 85 86 assert(rpch != NULL); 87 assert(s != NULL); 88 89 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 90 if (str == NULL) 91 return (0); 92 len = CLNT_PERROR_BUFLEN; 93 strstart = str; 94 CLNT_GETERR(rpch, &e); 95 96 if ((i = snprintf(str, len, "%s: ", s)) > 0) { 97 str += i; 98 len -= i; 99 } 100 101 (void)strncpy(str, clnt_sperrno(e.re_status), len - 1); 102 i = strlen(str); 103 str += i; 104 len -= i; 105 106 switch (e.re_status) { 107 case RPC_SUCCESS: 108 case RPC_CANTENCODEARGS: 109 case RPC_CANTDECODERES: 110 case RPC_TIMEDOUT: 111 case RPC_PROGUNAVAIL: 112 case RPC_PROCUNAVAIL: 113 case RPC_CANTDECODEARGS: 114 case RPC_SYSTEMERROR: 115 case RPC_UNKNOWNHOST: 116 case RPC_UNKNOWNPROTO: 117 case RPC_PMAPFAILURE: 118 case RPC_PROGNOTREGISTERED: 119 case RPC_FAILED: 120 break; 121 122 case RPC_CANTSEND: 123 case RPC_CANTRECV: 124 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 125 if (i > 0) { 126 str += i; 127 len -= i; 128 } 129 break; 130 131 case RPC_VERSMISMATCH: 132 i = snprintf(str, len, "; low version = %u, high version = %u", 133 e.re_vers.low, e.re_vers.high); 134 if (i > 0) { 135 str += i; 136 len -= i; 137 } 138 break; 139 140 case RPC_AUTHERROR: 141 err = auth_errmsg(e.re_why); 142 i = snprintf(str, len, "; why = "); 143 if (i > 0) { 144 str += i; 145 len -= i; 146 } 147 if (err != NULL) { 148 i = snprintf(str, len, "%s",err); 149 } else { 150 i = snprintf(str, len, 151 "(unknown authentication error - %d)", 152 (int) e.re_why); 153 } 154 if (i > 0) { 155 str += i; 156 len -= i; 157 } 158 break; 159 160 case RPC_PROGVERSMISMATCH: 161 i = snprintf(str, len, "; low version = %u, high version = %u", 162 e.re_vers.low, e.re_vers.high); 163 if (i > 0) { 164 str += i; 165 len -= i; 166 } 167 break; 168 169 default: /* unknown */ 170 i = snprintf(str, len, "; s1 = %u, s2 = %u", 171 e.re_lb.s1, e.re_lb.s2); 172 if (i > 0) { 173 str += i; 174 len -= i; 175 } 176 break; 177 } 178 strstart[CLNT_PERROR_BUFLEN-1] = '\0'; 179 return(strstart) ; 180} 181 182void 183clnt_perror(CLIENT *rpch, const char *s) 184{ 185 186 assert(rpch != NULL); 187 assert(s != NULL); 188 189 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 190} 191 192static const char *const rpc_errlist[] = { 193 "RPC: Success", /* 0 - RPC_SUCCESS */ 194 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 195 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 196 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 197 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 198 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 199 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 200 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 201 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 202 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 203 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 204 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 205 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 206 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 207 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 208 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 209 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 210 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 211}; 212 213 214/* 215 * This interface for use by clntrpc 216 */ 217char * 218clnt_sperrno(enum clnt_stat stat) 219{ 220 unsigned int errnum = stat; 221 222 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 223 /* LINTED interface problem */ 224 return (char *)rpc_errlist[errnum]; 225 226 return ("RPC: (unknown error code)"); 227} 228 229void 230clnt_perrno(enum clnt_stat num) 231{ 232 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 233} 234 235 236char * 237clnt_spcreateerror(const char *s) 238{ 239 char *str; 240 size_t len, i; 241 242 assert(s != NULL); 243 244 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 245 if (str == NULL) 246 return(0); 247 len = CLNT_PERROR_BUFLEN; 248 i = snprintf(str, len, "%s: ", s); 249 if (i > 0) 250 len -= i; 251 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 252 switch (rpc_createerr.cf_stat) { 253 case RPC_PMAPFAILURE: 254 (void) strncat(str, " - ", len - 1); 255 (void) strncat(str, 256 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 257 break; 258 259 case RPC_SYSTEMERROR: 260 (void)strncat(str, " - ", len - 1); 261 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 262 len - 4); 263 break; 264 265 case RPC_CANTSEND: 266 case RPC_CANTDECODERES: 267 case RPC_CANTENCODEARGS: 268 case RPC_SUCCESS: 269 case RPC_UNKNOWNPROTO: 270 case RPC_PROGNOTREGISTERED: 271 case RPC_FAILED: 272 case RPC_UNKNOWNHOST: 273 case RPC_CANTDECODEARGS: 274 case RPC_PROCUNAVAIL: 275 case RPC_PROGVERSMISMATCH: 276 case RPC_PROGUNAVAIL: 277 case RPC_AUTHERROR: 278 case RPC_VERSMISMATCH: 279 case RPC_TIMEDOUT: 280 case RPC_CANTRECV: 281 default: 282 break; 283 } 284 str[CLNT_PERROR_BUFLEN-1] = '\0'; 285 return (str); 286} 287 288void 289clnt_pcreateerror(const char *s) 290{ 291 292 assert(s != NULL); 293 294 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 295} 296 297static const char *const auth_errlist[] = { 298 "Authentication OK", /* 0 - AUTH_OK */ 299 "Invalid client credential", /* 1 - AUTH_BADCRED */ 300 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 301 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 302 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 303 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 304 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 305 "Failed (unspecified error)", /* 7 - AUTH_FAILED */ 306 "Kerberos generic error", /* 8 - AUTH_KERB_GENERIC*/ 307 "Kerberos credential expired", /* 9 - AUTH_TIMEEXPIRE */ 308 "Bad kerberos ticket file", /* 10 - AUTH_TKT_FILE */ 309 "Can't decode kerberos authenticator", /* 11 - AUTH_DECODE */ 310 "Address wrong in kerberos ticket", /* 12 - AUTH_NET_ADDR */ 311 "GSS-API crediential problem", /* 13 - RPCSEC_GSS_CREDPROBLEM */ 312 "GSS-API context problem" /* 14 - RPCSEC_GSS_CTXPROBLEM */ 313}; 314 315static char * 316auth_errmsg(enum auth_stat stat) 317{ 318 unsigned int errnum = stat; 319 320 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 321 /* LINTED interface problem */ 322 return (char *)auth_errlist[errnum]; 323 324 return(NULL); 325} 326