1/* $NetBSD: clnt_perror.c,v 1.28 2008/04/25 17:44:44 christos Exp $ */ 2 3/* 4 * Copyright (c) 2010, Oracle America, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials 15 * provided with the distribution. 16 * * Neither the name of the "Oracle America, Inc." nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34#include <sys/cdefs.h> 35#if defined(LIBC_SCCS) && !defined(lint) 36#if 0 37static char *sccsid = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro"; 38static char *sccsid = "@(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC"; 39#else 40__RCSID("$NetBSD: clnt_perror.c,v 1.28 2008/04/25 17:44:44 christos Exp $"); 41#endif 42#endif 43 44/* 45 * clnt_perror.c 46 * 47 * Copyright (C) 1984, Sun Microsystems, Inc. 48 * 49 */ 50#include "namespace.h" 51 52#include <assert.h> 53#include <stdio.h> 54#include <stdlib.h> 55#include <string.h> 56 57#include <rpc/rpc.h> 58#include <rpc/types.h> 59#include <rpc/auth.h> 60#include <rpc/clnt.h> 61 62#ifdef __weak_alias 63__weak_alias(clnt_pcreateerror,_clnt_pcreateerror) 64__weak_alias(clnt_perrno,_clnt_perrno) 65__weak_alias(clnt_perror,_clnt_perror) 66__weak_alias(clnt_spcreateerror,_clnt_spcreateerror) 67__weak_alias(clnt_sperrno,_clnt_sperrno) 68__weak_alias(clnt_sperror,_clnt_sperror) 69#endif 70 71static char *buf; 72static size_t buflen; 73 74static char *_buf __P((void)); 75static char *auth_errmsg __P((enum auth_stat)); 76 77static char * 78_buf() 79{ 80 81 buflen = 256; 82 if (buf == 0) 83 buf = malloc(buflen); 84 return (buf); 85} 86 87/* 88 * Print reply error info 89 */ 90char * 91clnt_sperror(rpch, s) 92 CLIENT *rpch; 93 const char *s; 94{ 95 struct rpc_err e; 96 char *err; 97 char *str; 98 char *strstart; 99 size_t len, i; 100 101 _DIAGASSERT(rpch != NULL); 102 _DIAGASSERT(s != NULL); 103 104 str = _buf(); /* side effect: sets "buflen" */ 105 if (str == 0) 106 return (0); 107 len = buflen; 108 strstart = str; 109 CLNT_GETERR(rpch, &e); 110 111 i = snprintf(str, len, "%s: ", s); 112 str += i; 113 len -= i; 114 115 (void)strncpy(str, clnt_sperrno(e.re_status), len - 1); 116 i = strlen(str); 117 str += i; 118 len -= i; 119 120 switch (e.re_status) { 121 case RPC_SUCCESS: 122 case RPC_CANTENCODEARGS: 123 case RPC_CANTDECODERES: 124 case RPC_TIMEDOUT: 125 case RPC_PROGUNAVAIL: 126 case RPC_PROCUNAVAIL: 127 case RPC_CANTDECODEARGS: 128 case RPC_SYSTEMERROR: 129 case RPC_UNKNOWNHOST: 130 case RPC_UNKNOWNPROTO: 131 case RPC_PMAPFAILURE: 132 case RPC_PROGNOTREGISTERED: 133 case RPC_FAILED: 134 break; 135 136 case RPC_CANTSEND: 137 case RPC_CANTRECV: 138 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 139 str += i; 140 len -= i; 141 break; 142 143 case RPC_VERSMISMATCH: 144 i = snprintf(str, len, "; low version = %u, high version = %u", 145 e.re_vers.low, e.re_vers.high); 146 str += i; 147 len -= i; 148 break; 149 150 case RPC_AUTHERROR: 151 err = auth_errmsg(e.re_why); 152 i = snprintf(str, len, "; why = "); 153 str += i; 154 len -= i; 155 if (err != NULL) { 156 i = snprintf(str, len, "%s",err); 157 } else { 158 i = snprintf(str, len, 159 "(unknown authentication error - %d)", 160 (int) e.re_why); 161 } 162 str += i; 163 len -= i; 164 break; 165 166 case RPC_PROGVERSMISMATCH: 167 i = snprintf(str, len, "; low version = %u, high version = %u", 168 e.re_vers.low, e.re_vers.high); 169 str += i; 170 len -= i; 171 break; 172 173 default: /* unknown */ 174 i = snprintf(str, len, "; s1 = %u, s2 = %u", 175 e.re_lb.s1, e.re_lb.s2); 176 str += i; 177 len -= i; 178 break; 179 } 180 return(strstart) ; 181} 182 183void 184clnt_perror(rpch, s) 185 CLIENT *rpch; 186 const char *s; 187{ 188 189 _DIAGASSERT(rpch != NULL); 190 _DIAGASSERT(s != NULL); 191 192 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 193} 194 195static const char *const rpc_errlist[] = { 196 [RPC_SUCCESS] = "RPC: Success", 197 [RPC_CANTENCODEARGS] = "RPC: Can't encode arguments", 198 [RPC_CANTDECODERES] = "RPC: Can't decode result", 199 [RPC_CANTSEND] = "RPC: Unable to send", 200 [RPC_CANTRECV] = "RPC: Unable to receive", 201 [RPC_TIMEDOUT] = "RPC: Timed out", 202 [RPC_VERSMISMATCH] = "RPC: Incompatible versions of RPC", 203 [RPC_AUTHERROR] = "RPC: Authentication error", 204 [RPC_PROGUNAVAIL] = "RPC: Program unavailable", 205 [RPC_PROGVERSMISMATCH] = "RPC: Program/version mismatch", 206 [RPC_PROCUNAVAIL] = "RPC: Procedure unavailable", 207 [RPC_CANTDECODEARGS] = "RPC: Server can't decode arguments", 208 [RPC_SYSTEMERROR] = "RPC: Remote system error", 209 [RPC_UNKNOWNHOST] = "RPC: Unknown host", 210 [RPC_PMAPFAILURE] = "RPC: Port mapper failure", 211 [RPC_PROGNOTREGISTERED] = "RPC: Program not registered", 212 [RPC_FAILED] = "RPC: Failed (unspecified error)", 213 [RPC_UNKNOWNPROTO] = "RPC: Unknown protocol", 214 [RPC_UNKNOWNADDR] = "RPC: Remote address unknown", 215 [RPC_TLIERROR] = "RPC: Misc error in the TLI library", 216 [RPC_NOBROADCAST] = "RPC: Broadcasting not supported", 217 [RPC_N2AXLATEFAILURE] = "RPC: Name -> addr translation failed", 218 [RPC_INPROGRESS] = "RPC: In progress", 219 [RPC_STALERACHANDLE] = "RPC: Stale handle", 220}; 221 222 223/* 224 * This interface for use by clntrpc 225 */ 226char * 227clnt_sperrno(stat) 228 enum clnt_stat stat; 229{ 230 unsigned int errnum = stat; 231 const char *msg; 232 233 msg = NULL; 234 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) { 235 msg = rpc_errlist[errnum]; 236 } 237 if (msg == NULL) { 238 msg = "RPC: (unknown error code)"; 239 } 240 return __UNCONST(msg); 241} 242 243void 244clnt_perrno(num) 245 enum clnt_stat num; 246{ 247 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 248} 249 250 251char * 252clnt_spcreateerror(s) 253 const char *s; 254{ 255 char *str; 256 size_t len, i; 257 258 _DIAGASSERT(s != NULL); 259 260 str = _buf(); /* side effect: sets "buflen" */ 261 if (str == 0) 262 return(0); 263 len = buflen; 264 i = snprintf(str, len, "%s: ", s); 265 len -= i; 266 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 267 switch (rpc_createerr.cf_stat) { 268 case RPC_PMAPFAILURE: 269 (void) strncat(str, " - ", len - 1); 270 (void) strncat(str, 271 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 272 break; 273 274 case RPC_SYSTEMERROR: 275 (void)strncat(str, " - ", len - 1); 276 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 277 len - 4); 278 break; 279 280 case RPC_CANTSEND: 281 case RPC_CANTDECODERES: 282 case RPC_CANTENCODEARGS: 283 case RPC_SUCCESS: 284 case RPC_UNKNOWNPROTO: 285 case RPC_PROGNOTREGISTERED: 286 case RPC_FAILED: 287 case RPC_UNKNOWNHOST: 288 case RPC_CANTDECODEARGS: 289 case RPC_PROCUNAVAIL: 290 case RPC_PROGVERSMISMATCH: 291 case RPC_PROGUNAVAIL: 292 case RPC_AUTHERROR: 293 case RPC_VERSMISMATCH: 294 case RPC_TIMEDOUT: 295 case RPC_CANTRECV: 296 default: 297 break; 298 } 299 return (str); 300} 301 302void 303clnt_pcreateerror(s) 304 const char *s; 305{ 306 307 _DIAGASSERT(s != NULL); 308 309 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 310} 311 312static const char *const auth_errlist[] = { 313 "Authentication OK", /* 0 - AUTH_OK */ 314 "Invalid client credential", /* 1 - AUTH_BADCRED */ 315 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 316 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 317 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 318 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 319 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 320 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 321}; 322 323static char * 324auth_errmsg(stat) 325 enum auth_stat stat; 326{ 327 unsigned int errnum = stat; 328 329 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 330 return __UNCONST(auth_errlist[errnum]); 331 332 return(NULL); 333} 334