clnt_perror.c revision 1.19
1/* $NetBSD: clnt_perror.c,v 1.19 1999/09/17 00:21:12 lukem 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 1.19 1999/09/17 00:21:12 lukem 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 = (char *)malloc(buflen); 82 return (buf); 83} 84 85/* 86 * Print reply error info 87 */ 88char * 89clnt_sperror(rpch, s) 90 CLIENT *rpch; 91 char *s; 92{ 93 struct rpc_err e; 94 char *err; 95 char *str; 96 char *strstart = str; 97 size_t len = buflen, i; 98 99 _DIAGASSERT(rpch != NULL); 100 _DIAGASSERT(s != NULL); 101#ifdef _DIAGNOSTIC 102 if (rpch == NULL || s == NULL) 103 return (NULL); 104#endif 105 106 str = _buf(); 107 if (str == 0) 108 return (0); 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 char *s; 187{ 188 189 _DIAGASSERT(rpch != NULL); 190 _DIAGASSERT(s != NULL); 191#ifdef _DIAGNOSTIC 192 if (rpch == NULL || s == NULL) { 193 (void) fprintf(stderr, 194 "ERROR: clnt_perror() called with NULL argument\n"); 195 return; 196 } 197#endif 198 199 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 200} 201 202static const char *const rpc_errlist[] = { 203 "RPC: Success", /* 0 - RPC_SUCCESS */ 204 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 205 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 206 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 207 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 208 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 209 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 210 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 211 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 212 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 213 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 214 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 215 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 216 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 217 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 218 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 219 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 220 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 221}; 222 223 224/* 225 * This interface for use by clntrpc 226 */ 227char * 228clnt_sperrno(stat) 229 enum clnt_stat stat; 230{ 231 unsigned int errnum = stat; 232 233 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 234 /* LINTED interface problem */ 235 return (char *)rpc_errlist[errnum]; 236 237 return ("RPC: (unknown error code)"); 238} 239 240void 241clnt_perrno(num) 242 enum clnt_stat num; 243{ 244 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 245} 246 247 248char * 249clnt_spcreateerror(s) 250 char *s; 251{ 252 char *str; 253 size_t len = buflen, i; 254 255 _DIAGASSERT(s != NULL); 256#ifdef _DIAGNOSTIC 257 if (s == NULL) 258 return (NULL); 259#endif 260 261 str = _buf(); 262 if (str == 0) 263 return(0); 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 break; 297 } 298 return (str); 299} 300 301void 302clnt_pcreateerror(s) 303 char *s; 304{ 305 306 _DIAGASSERT(s != NULL); 307#ifdef _DIAGNOSTIC 308 if (s == NULL) { 309 (void) fprintf(stderr, 310 "ERROR: clnt_pcreateerror() called with NULL argument\n"); 311 return; 312 } 313#endif 314 315 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 316} 317 318static const char *const auth_errlist[] = { 319 "Authentication OK", /* 0 - AUTH_OK */ 320 "Invalid client credential", /* 1 - AUTH_BADCRED */ 321 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 322 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 323 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 324 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 325 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 326 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 327}; 328 329static char * 330auth_errmsg(stat) 331 enum auth_stat stat; 332{ 333 unsigned int errnum = stat; 334 335 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 336 /* LINTED interface problem */ 337 return (char *)auth_errlist[errnum]; 338 339 return(NULL); 340} 341