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) 35 static char *sccsid2 = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro"; 36 static char *sccsid = "@(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC"; 37 #endif 38 /* 39 * clnt_perror.c 40 * 41 * Copyright (C) 1984, Sun Microsystems, Inc. 42 * 43 */ 44 #include "namespace.h" 45 #include <assert.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 50 #include <rpc/rpc.h> 51 #include <rpc/types.h> 52 #include <rpc/auth.h> 53 #include <rpc/clnt.h> 54 #include "un-namespace.h" 55 56 static char *buf; 57 58 static char *_buf(void); 59 static char *auth_errmsg(enum auth_stat); 60 #define CLNT_PERROR_BUFLEN 256 61 62 static char * 63 _buf(void) 64 { 65 66 if (buf == NULL) 67 buf = malloc(CLNT_PERROR_BUFLEN); 68 return (buf); 69 } 70 71 /* 72 * Print reply error info 73 */ 74 char * 75 clnt_sperror(CLIENT *rpch, const char *s) 76 { 77 struct rpc_err e; 78 char *err; 79 char *str; 80 char *strstart; 81 size_t len, i; 82 83 assert(rpch != NULL); 84 assert(s != NULL); 85 86 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 87 if (str == NULL) 88 return (0); 89 len = CLNT_PERROR_BUFLEN; 90 strstart = str; 91 CLNT_GETERR(rpch, &e); 92 93 if ((i = snprintf(str, len, "%s: ", s)) > 0) { 94 str += i; 95 len -= i; 96 } 97 98 (void)strncpy(str, clnt_sperrno(e.re_status), len - 1); 99 i = strlen(str); 100 str += i; 101 len -= i; 102 103 switch (e.re_status) { 104 case RPC_SUCCESS: 105 case RPC_CANTENCODEARGS: 106 case RPC_CANTDECODERES: 107 case RPC_TIMEDOUT: 108 case RPC_PROGUNAVAIL: 109 case RPC_PROCUNAVAIL: 110 case RPC_CANTDECODEARGS: 111 case RPC_SYSTEMERROR: 112 case RPC_UNKNOWNHOST: 113 case RPC_UNKNOWNPROTO: 114 case RPC_PMAPFAILURE: 115 case RPC_PROGNOTREGISTERED: 116 case RPC_FAILED: 117 break; 118 119 case RPC_CANTSEND: 120 case RPC_CANTRECV: 121 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 122 if (i > 0) { 123 str += i; 124 len -= i; 125 } 126 break; 127 128 case RPC_VERSMISMATCH: 129 i = snprintf(str, len, "; low version = %u, high version = %u", 130 e.re_vers.low, e.re_vers.high); 131 if (i > 0) { 132 str += i; 133 len -= i; 134 } 135 break; 136 137 case RPC_AUTHERROR: 138 err = auth_errmsg(e.re_why); 139 i = snprintf(str, len, "; why = "); 140 if (i > 0) { 141 str += i; 142 len -= i; 143 } 144 if (err != NULL) { 145 i = snprintf(str, len, "%s",err); 146 } else { 147 i = snprintf(str, len, 148 "(unknown authentication error - %d)", 149 (int) e.re_why); 150 } 151 if (i > 0) { 152 str += i; 153 len -= i; 154 } 155 break; 156 157 case RPC_PROGVERSMISMATCH: 158 i = snprintf(str, len, "; low version = %u, high version = %u", 159 e.re_vers.low, e.re_vers.high); 160 if (i > 0) { 161 str += i; 162 len -= i; 163 } 164 break; 165 166 default: /* unknown */ 167 i = snprintf(str, len, "; s1 = %u, s2 = %u", 168 e.re_lb.s1, e.re_lb.s2); 169 if (i > 0) { 170 str += i; 171 len -= i; 172 } 173 break; 174 } 175 strstart[CLNT_PERROR_BUFLEN-1] = '\0'; 176 return(strstart) ; 177 } 178 179 void 180 clnt_perror(CLIENT *rpch, const char *s) 181 { 182 183 assert(rpch != NULL); 184 assert(s != NULL); 185 186 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 187 } 188 189 static const char *const rpc_errlist[] = { 190 "RPC: Success", /* 0 - RPC_SUCCESS */ 191 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 192 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 193 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 194 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 195 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 196 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 197 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 198 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 199 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 200 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 201 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 202 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 203 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 204 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 205 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 206 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 207 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 208 }; 209 210 211 /* 212 * This interface for use by clntrpc 213 */ 214 char * 215 clnt_sperrno(enum clnt_stat stat) 216 { 217 unsigned int errnum = stat; 218 219 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 220 /* LINTED interface problem */ 221 return (char *)rpc_errlist[errnum]; 222 223 return ("RPC: (unknown error code)"); 224 } 225 226 void 227 clnt_perrno(enum clnt_stat num) 228 { 229 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 230 } 231 232 233 char * 234 clnt_spcreateerror(const char *s) 235 { 236 char *str; 237 size_t len, i; 238 239 assert(s != NULL); 240 241 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 242 if (str == NULL) 243 return(0); 244 len = CLNT_PERROR_BUFLEN; 245 i = snprintf(str, len, "%s: ", s); 246 if (i > 0) 247 len -= i; 248 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 249 switch (rpc_createerr.cf_stat) { 250 case RPC_PMAPFAILURE: 251 (void) strncat(str, " - ", len - 1); 252 (void) strncat(str, 253 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 254 break; 255 256 case RPC_SYSTEMERROR: 257 (void)strncat(str, " - ", len - 1); 258 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 259 len - 4); 260 break; 261 262 case RPC_CANTSEND: 263 case RPC_CANTDECODERES: 264 case RPC_CANTENCODEARGS: 265 case RPC_SUCCESS: 266 case RPC_UNKNOWNPROTO: 267 case RPC_PROGNOTREGISTERED: 268 case RPC_FAILED: 269 case RPC_UNKNOWNHOST: 270 case RPC_CANTDECODEARGS: 271 case RPC_PROCUNAVAIL: 272 case RPC_PROGVERSMISMATCH: 273 case RPC_PROGUNAVAIL: 274 case RPC_AUTHERROR: 275 case RPC_VERSMISMATCH: 276 case RPC_TIMEDOUT: 277 case RPC_CANTRECV: 278 default: 279 break; 280 } 281 str[CLNT_PERROR_BUFLEN-1] = '\0'; 282 return (str); 283 } 284 285 void 286 clnt_pcreateerror(const char *s) 287 { 288 289 assert(s != NULL); 290 291 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 292 } 293 294 static const char *const auth_errlist[] = { 295 "Authentication OK", /* 0 - AUTH_OK */ 296 "Invalid client credential", /* 1 - AUTH_BADCRED */ 297 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 298 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 299 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 300 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 301 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 302 "Failed (unspecified error)", /* 7 - AUTH_FAILED */ 303 "Kerberos generic error", /* 8 - AUTH_KERB_GENERIC*/ 304 "Kerberos credential expired", /* 9 - AUTH_TIMEEXPIRE */ 305 "Bad kerberos ticket file", /* 10 - AUTH_TKT_FILE */ 306 "Can't decode kerberos authenticator", /* 11 - AUTH_DECODE */ 307 "Address wrong in kerberos ticket", /* 12 - AUTH_NET_ADDR */ 308 "GSS-API crediential problem", /* 13 - RPCSEC_GSS_CREDPROBLEM */ 309 "GSS-API context problem" /* 14 - RPCSEC_GSS_CTXPROBLEM */ 310 }; 311 312 static char * 313 auth_errmsg(enum auth_stat stat) 314 { 315 unsigned int errnum = stat; 316 317 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 318 /* LINTED interface problem */ 319 return (char *)auth_errlist[errnum]; 320 321 return(NULL); 322 } 323