1 /* $NetBSD: clnt_perror.c,v 1.24 2000/06/02 23:11:07 fvdl Exp $ */ 2 3 4 /*- 5 * Copyright (c) 2009, Sun Microsystems, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * - Redistributions of source code must retain the above copyright notice, 11 * this list of conditions and the following disclaimer. 12 * - Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * - Neither the name of Sun Microsystems, Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #if defined(LIBC_SCCS) && !defined(lint) 33 static char *sccsid2 = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro"; 34 static char *sccsid = "@(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC"; 35 #endif 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 /* 40 * clnt_perror.c 41 * 42 * Copyright (C) 1984, Sun Microsystems, Inc. 43 * 44 */ 45 #include "namespace.h" 46 #include <assert.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 #include <rpc/rpc.h> 52 #include <rpc/types.h> 53 #include <rpc/auth.h> 54 #include <rpc/clnt.h> 55 #include "un-namespace.h" 56 57 static char *buf; 58 59 static char *_buf(void); 60 static char *auth_errmsg(enum auth_stat); 61 #define CLNT_PERROR_BUFLEN 256 62 63 static char * 64 _buf() 65 { 66 67 if (buf == 0) 68 buf = (char *)malloc(CLNT_PERROR_BUFLEN); 69 return (buf); 70 } 71 72 /* 73 * Print reply error info 74 */ 75 char * 76 clnt_sperror(rpch, s) 77 CLIENT *rpch; 78 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 == 0) 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 } 181 182 void 183 clnt_perror(rpch, s) 184 CLIENT *rpch; 185 const char *s; 186 { 187 188 assert(rpch != NULL); 189 assert(s != NULL); 190 191 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 192 } 193 194 static const char *const rpc_errlist[] = { 195 "RPC: Success", /* 0 - RPC_SUCCESS */ 196 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 197 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 198 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 199 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 200 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 201 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 202 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 203 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 204 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 205 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 206 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 207 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 208 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 209 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 210 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 211 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 212 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 213 }; 214 215 216 /* 217 * This interface for use by clntrpc 218 */ 219 char * 220 clnt_sperrno(stat) 221 enum clnt_stat stat; 222 { 223 unsigned int errnum = stat; 224 225 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 226 /* LINTED interface problem */ 227 return (char *)rpc_errlist[errnum]; 228 229 return ("RPC: (unknown error code)"); 230 } 231 232 void 233 clnt_perrno(num) 234 enum clnt_stat num; 235 { 236 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 237 } 238 239 240 char * 241 clnt_spcreateerror(s) 242 const char *s; 243 { 244 char *str; 245 size_t len, i; 246 247 assert(s != NULL); 248 249 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 250 if (str == 0) 251 return(0); 252 len = CLNT_PERROR_BUFLEN; 253 i = snprintf(str, len, "%s: ", s); 254 if (i > 0) 255 len -= i; 256 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 257 switch (rpc_createerr.cf_stat) { 258 case RPC_PMAPFAILURE: 259 (void) strncat(str, " - ", len - 1); 260 (void) strncat(str, 261 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 262 break; 263 264 case RPC_SYSTEMERROR: 265 (void)strncat(str, " - ", len - 1); 266 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 267 len - 4); 268 break; 269 270 case RPC_CANTSEND: 271 case RPC_CANTDECODERES: 272 case RPC_CANTENCODEARGS: 273 case RPC_SUCCESS: 274 case RPC_UNKNOWNPROTO: 275 case RPC_PROGNOTREGISTERED: 276 case RPC_FAILED: 277 case RPC_UNKNOWNHOST: 278 case RPC_CANTDECODEARGS: 279 case RPC_PROCUNAVAIL: 280 case RPC_PROGVERSMISMATCH: 281 case RPC_PROGUNAVAIL: 282 case RPC_AUTHERROR: 283 case RPC_VERSMISMATCH: 284 case RPC_TIMEDOUT: 285 case RPC_CANTRECV: 286 default: 287 break; 288 } 289 str[CLNT_PERROR_BUFLEN-1] = '\0'; 290 return (str); 291 } 292 293 void 294 clnt_pcreateerror(s) 295 const char *s; 296 { 297 298 assert(s != NULL); 299 300 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 301 } 302 303 static const char *const auth_errlist[] = { 304 "Authentication OK", /* 0 - AUTH_OK */ 305 "Invalid client credential", /* 1 - AUTH_BADCRED */ 306 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 307 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 308 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 309 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 310 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 311 "Failed (unspecified error)", /* 7 - AUTH_FAILED */ 312 "Kerberos generic error", /* 8 - AUTH_KERB_GENERIC*/ 313 "Kerberos credential expired", /* 9 - AUTH_TIMEEXPIRE */ 314 "Bad kerberos ticket file", /* 10 - AUTH_TKT_FILE */ 315 "Can't decode kerberos authenticator", /* 11 - AUTH_DECODE */ 316 "Address wrong in kerberos ticket", /* 12 - AUTH_NET_ADDR */ 317 "GSS-API crediential problem", /* 13 - RPCSEC_GSS_CREDPROBLEM */ 318 "GSS-API context problem" /* 14 - RPCSEC_GSS_CTXPROBLEM */ 319 }; 320 321 static char * 322 auth_errmsg(stat) 323 enum auth_stat stat; 324 { 325 unsigned int errnum = stat; 326 327 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 328 /* LINTED interface problem */ 329 return (char *)auth_errlist[errnum]; 330 331 return(NULL); 332 } 333