clnt_perror.c revision 1.28
1/* $NetBSD: clnt_perror.c,v 1.28 2008/04/25 17:44:44 christos Exp $ */ 2 3/* 4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 5 * unrestricted use provided that this legend is included on all tape 6 * media and as a part of the software program in whole or part. Users 7 * may copy or modify Sun RPC without charge, but are not authorized 8 * to license or distribute it to anyone else except as part of a product or 9 * program developed by the user. 10 * 11 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 12 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 14 * 15 * Sun RPC is provided with no support and without any obligation on the 16 * part of Sun Microsystems, Inc. to assist in its use, correction, 17 * modification or enhancement. 18 * 19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 21 * OR ANY PART THEREOF. 22 * 23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 24 * or profits or other special, indirect and consequential damages, even if 25 * Sun has been advised of the possibility of such damages. 26 * 27 * Sun Microsystems, Inc. 28 * 2550 Garcia Avenue 29 * Mountain View, California 94043 30 */ 31 32#include <sys/cdefs.h> 33#if defined(LIBC_SCCS) && !defined(lint) 34#if 0 35static char *sccsid = "@(#)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#else 38__RCSID("$NetBSD: clnt_perror.c,v 1.28 2008/04/25 17:44:44 christos Exp $"); 39#endif 40#endif 41 42/* 43 * clnt_perror.c 44 * 45 * Copyright (C) 1984, Sun Microsystems, Inc. 46 * 47 */ 48#include "namespace.h" 49 50#include <assert.h> 51#include <stdio.h> 52#include <stdlib.h> 53#include <string.h> 54 55#include <rpc/rpc.h> 56#include <rpc/types.h> 57#include <rpc/auth.h> 58#include <rpc/clnt.h> 59 60#ifdef __weak_alias 61__weak_alias(clnt_pcreateerror,_clnt_pcreateerror) 62__weak_alias(clnt_perrno,_clnt_perrno) 63__weak_alias(clnt_perror,_clnt_perror) 64__weak_alias(clnt_spcreateerror,_clnt_spcreateerror) 65__weak_alias(clnt_sperrno,_clnt_sperrno) 66__weak_alias(clnt_sperror,_clnt_sperror) 67#endif 68 69static char *buf; 70static size_t buflen; 71 72static char *_buf __P((void)); 73static char *auth_errmsg __P((enum auth_stat)); 74 75static char * 76_buf() 77{ 78 79 buflen = 256; 80 if (buf == 0) 81 buf = malloc(buflen); 82 return (buf); 83} 84 85/* 86 * Print reply error info 87 */ 88char * 89clnt_sperror(rpch, s) 90 CLIENT *rpch; 91 const char *s; 92{ 93 struct rpc_err e; 94 char *err; 95 char *str; 96 char *strstart; 97 size_t len, i; 98 99 _DIAGASSERT(rpch != NULL); 100 _DIAGASSERT(s != NULL); 101 102 str = _buf(); /* side effect: sets "buflen" */ 103 if (str == 0) 104 return (0); 105 len = buflen; 106 strstart = str; 107 CLNT_GETERR(rpch, &e); 108 109 i = snprintf(str, len, "%s: ", s); 110 str += i; 111 len -= i; 112 113 (void)strncpy(str, clnt_sperrno(e.re_status), len - 1); 114 i = strlen(str); 115 str += i; 116 len -= i; 117 118 switch (e.re_status) { 119 case RPC_SUCCESS: 120 case RPC_CANTENCODEARGS: 121 case RPC_CANTDECODERES: 122 case RPC_TIMEDOUT: 123 case RPC_PROGUNAVAIL: 124 case RPC_PROCUNAVAIL: 125 case RPC_CANTDECODEARGS: 126 case RPC_SYSTEMERROR: 127 case RPC_UNKNOWNHOST: 128 case RPC_UNKNOWNPROTO: 129 case RPC_PMAPFAILURE: 130 case RPC_PROGNOTREGISTERED: 131 case RPC_FAILED: 132 break; 133 134 case RPC_CANTSEND: 135 case RPC_CANTRECV: 136 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 137 str += i; 138 len -= i; 139 break; 140 141 case RPC_VERSMISMATCH: 142 i = snprintf(str, len, "; low version = %u, high version = %u", 143 e.re_vers.low, e.re_vers.high); 144 str += i; 145 len -= i; 146 break; 147 148 case RPC_AUTHERROR: 149 err = auth_errmsg(e.re_why); 150 i = snprintf(str, len, "; why = "); 151 str += i; 152 len -= i; 153 if (err != NULL) { 154 i = snprintf(str, len, "%s",err); 155 } else { 156 i = snprintf(str, len, 157 "(unknown authentication error - %d)", 158 (int) e.re_why); 159 } 160 str += i; 161 len -= i; 162 break; 163 164 case RPC_PROGVERSMISMATCH: 165 i = snprintf(str, len, "; low version = %u, high version = %u", 166 e.re_vers.low, e.re_vers.high); 167 str += i; 168 len -= i; 169 break; 170 171 default: /* unknown */ 172 i = snprintf(str, len, "; s1 = %u, s2 = %u", 173 e.re_lb.s1, e.re_lb.s2); 174 str += i; 175 len -= i; 176 break; 177 } 178 return(strstart) ; 179} 180 181void 182clnt_perror(rpch, s) 183 CLIENT *rpch; 184 const char *s; 185{ 186 187 _DIAGASSERT(rpch != NULL); 188 _DIAGASSERT(s != NULL); 189 190 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 191} 192 193static const char *const rpc_errlist[] = { 194 [RPC_SUCCESS] = "RPC: Success", 195 [RPC_CANTENCODEARGS] = "RPC: Can't encode arguments", 196 [RPC_CANTDECODERES] = "RPC: Can't decode result", 197 [RPC_CANTSEND] = "RPC: Unable to send", 198 [RPC_CANTRECV] = "RPC: Unable to receive", 199 [RPC_TIMEDOUT] = "RPC: Timed out", 200 [RPC_VERSMISMATCH] = "RPC: Incompatible versions of RPC", 201 [RPC_AUTHERROR] = "RPC: Authentication error", 202 [RPC_PROGUNAVAIL] = "RPC: Program unavailable", 203 [RPC_PROGVERSMISMATCH] = "RPC: Program/version mismatch", 204 [RPC_PROCUNAVAIL] = "RPC: Procedure unavailable", 205 [RPC_CANTDECODEARGS] = "RPC: Server can't decode arguments", 206 [RPC_SYSTEMERROR] = "RPC: Remote system error", 207 [RPC_UNKNOWNHOST] = "RPC: Unknown host", 208 [RPC_PMAPFAILURE] = "RPC: Port mapper failure", 209 [RPC_PROGNOTREGISTERED] = "RPC: Program not registered", 210 [RPC_FAILED] = "RPC: Failed (unspecified error)", 211 [RPC_UNKNOWNPROTO] = "RPC: Unknown protocol", 212 [RPC_UNKNOWNADDR] = "RPC: Remote address unknown", 213 [RPC_TLIERROR] = "RPC: Misc error in the TLI library", 214 [RPC_NOBROADCAST] = "RPC: Broadcasting not supported", 215 [RPC_N2AXLATEFAILURE] = "RPC: Name -> addr translation failed", 216 [RPC_INPROGRESS] = "RPC: In progress", 217 [RPC_STALERACHANDLE] = "RPC: Stale handle", 218}; 219 220 221/* 222 * This interface for use by clntrpc 223 */ 224char * 225clnt_sperrno(stat) 226 enum clnt_stat stat; 227{ 228 unsigned int errnum = stat; 229 const char *msg; 230 231 msg = NULL; 232 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) { 233 msg = rpc_errlist[errnum]; 234 } 235 if (msg == NULL) { 236 msg = "RPC: (unknown error code)"; 237 } 238 return __UNCONST(msg); 239} 240 241void 242clnt_perrno(num) 243 enum clnt_stat num; 244{ 245 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 246} 247 248 249char * 250clnt_spcreateerror(s) 251 const char *s; 252{ 253 char *str; 254 size_t len, i; 255 256 _DIAGASSERT(s != NULL); 257 258 str = _buf(); /* side effect: sets "buflen" */ 259 if (str == 0) 260 return(0); 261 len = buflen; 262 i = snprintf(str, len, "%s: ", s); 263 len -= i; 264 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 265 switch (rpc_createerr.cf_stat) { 266 case RPC_PMAPFAILURE: 267 (void) strncat(str, " - ", len - 1); 268 (void) strncat(str, 269 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 270 break; 271 272 case RPC_SYSTEMERROR: 273 (void)strncat(str, " - ", len - 1); 274 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 275 len - 4); 276 break; 277 278 case RPC_CANTSEND: 279 case RPC_CANTDECODERES: 280 case RPC_CANTENCODEARGS: 281 case RPC_SUCCESS: 282 case RPC_UNKNOWNPROTO: 283 case RPC_PROGNOTREGISTERED: 284 case RPC_FAILED: 285 case RPC_UNKNOWNHOST: 286 case RPC_CANTDECODEARGS: 287 case RPC_PROCUNAVAIL: 288 case RPC_PROGVERSMISMATCH: 289 case RPC_PROGUNAVAIL: 290 case RPC_AUTHERROR: 291 case RPC_VERSMISMATCH: 292 case RPC_TIMEDOUT: 293 case RPC_CANTRECV: 294 default: 295 break; 296 } 297 return (str); 298} 299 300void 301clnt_pcreateerror(s) 302 const char *s; 303{ 304 305 _DIAGASSERT(s != NULL); 306 307 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 308} 309 310static const char *const auth_errlist[] = { 311 "Authentication OK", /* 0 - AUTH_OK */ 312 "Invalid client credential", /* 1 - AUTH_BADCRED */ 313 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 314 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 315 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 316 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 317 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 318 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 319}; 320 321static char * 322auth_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 return __UNCONST(auth_errlist[errnum]); 329 330 return(NULL); 331} 332