1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 * 29 * @(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro 30 * @(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC 31 * $NetBSD: clnt_perror.c,v 1.24 2000/06/02 23:11:07 fvdl Exp $ 32 * $FreeBSD: src/lib/libc/rpc/clnt_perror.c,v 1.17 2004/10/16 06:11:34 obrien Exp $ 33 * $DragonFly: src/lib/libc/rpc/clnt_perror.c,v 1.5 2005/11/13 12:27:04 swildner Exp $ 34 */ 35 36 /* 37 * clnt_perror.c 38 * 39 * Copyright (C) 1984, Sun Microsystems, Inc. 40 * 41 */ 42 #include "namespace.h" 43 #include <assert.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 48 #include <rpc/rpc.h> 49 #include <rpc/types.h> 50 #include <rpc/auth.h> 51 #include <rpc/clnt.h> 52 #include "un-namespace.h" 53 54 static char *buf; 55 56 static char *_buf(void); 57 static char *auth_errmsg(enum auth_stat); 58 #define CLNT_PERROR_BUFLEN 256 59 60 static char * 61 _buf(void) 62 { 63 64 if (buf == 0) 65 buf = (char *)malloc(CLNT_PERROR_BUFLEN); 66 return (buf); 67 } 68 69 /* 70 * Print reply error info 71 */ 72 char * 73 clnt_sperror(CLIENT *rpch, const char *s) 74 { 75 struct rpc_err e; 76 char *err; 77 char *str; 78 char *strstart; 79 size_t len, i; 80 81 assert(rpch != NULL); 82 assert(s != NULL); 83 84 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 85 if (str == 0) 86 return (0); 87 len = CLNT_PERROR_BUFLEN; 88 strstart = str; 89 CLNT_GETERR(rpch, &e); 90 91 if ((i = snprintf(str, len, "%s: ", s)) > 0) { 92 str += i; 93 len -= i; 94 } 95 96 strncpy(str, clnt_sperrno(e.re_status), len - 1); 97 i = strlen(str); 98 str += i; 99 len -= i; 100 101 switch (e.re_status) { 102 case RPC_SUCCESS: 103 case RPC_CANTENCODEARGS: 104 case RPC_CANTDECODERES: 105 case RPC_TIMEDOUT: 106 case RPC_PROGUNAVAIL: 107 case RPC_PROCUNAVAIL: 108 case RPC_CANTDECODEARGS: 109 case RPC_SYSTEMERROR: 110 case RPC_UNKNOWNHOST: 111 case RPC_UNKNOWNPROTO: 112 case RPC_PMAPFAILURE: 113 case RPC_PROGNOTREGISTERED: 114 case RPC_FAILED: 115 break; 116 117 case RPC_CANTSEND: 118 case RPC_CANTRECV: 119 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 120 if (i > 0) { 121 str += i; 122 len -= i; 123 } 124 break; 125 126 case RPC_VERSMISMATCH: 127 i = snprintf(str, len, "; low version = %u, high version = %u", 128 e.re_vers.low, e.re_vers.high); 129 if (i > 0) { 130 str += i; 131 len -= i; 132 } 133 break; 134 135 case RPC_AUTHERROR: 136 err = auth_errmsg(e.re_why); 137 i = snprintf(str, len, "; why = "); 138 if (i > 0) { 139 str += i; 140 len -= i; 141 } 142 if (err != NULL) { 143 i = snprintf(str, len, "%s",err); 144 } else { 145 i = snprintf(str, len, 146 "(unknown authentication error - %d)", 147 (int) e.re_why); 148 } 149 if (i > 0) { 150 str += i; 151 len -= i; 152 } 153 break; 154 155 case RPC_PROGVERSMISMATCH: 156 i = snprintf(str, len, "; low version = %u, high version = %u", 157 e.re_vers.low, e.re_vers.high); 158 if (i > 0) { 159 str += i; 160 len -= i; 161 } 162 break; 163 164 default: /* unknown */ 165 i = snprintf(str, len, "; s1 = %u, s2 = %u", 166 e.re_lb.s1, e.re_lb.s2); 167 if (i > 0) { 168 str += i; 169 len -= i; 170 } 171 break; 172 } 173 strstart[CLNT_PERROR_BUFLEN-1] = '\0'; 174 return(strstart) ; 175 } 176 177 void 178 clnt_perror(CLIENT *rpch, const char *s) 179 { 180 181 assert(rpch != NULL); 182 assert(s != NULL); 183 184 fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 185 } 186 187 static const char *const rpc_errlist[] = { 188 "RPC: Success", /* 0 - RPC_SUCCESS */ 189 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 190 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 191 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 192 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 193 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 194 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 195 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 196 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 197 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 198 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 199 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 200 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 201 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 202 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 203 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 204 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 205 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 206 }; 207 208 209 /* 210 * This interface for use by clntrpc 211 */ 212 char * 213 clnt_sperrno(enum clnt_stat stat) 214 { 215 unsigned int errnum = stat; 216 217 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 218 /* LINTED interface problem */ 219 return (char *)rpc_errlist[errnum]; 220 221 return ("RPC: (unknown error code)"); 222 } 223 224 void 225 clnt_perrno(enum clnt_stat num) 226 { 227 fprintf(stderr, "%s\n", clnt_sperrno(num)); 228 } 229 230 231 char * 232 clnt_spcreateerror(const char *s) 233 { 234 char *str; 235 size_t len, i; 236 237 assert(s != NULL); 238 239 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 240 if (str == 0) 241 return(0); 242 len = CLNT_PERROR_BUFLEN; 243 i = snprintf(str, len, "%s: ", s); 244 if (i > 0) 245 len -= i; 246 strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 247 switch (rpc_createerr.cf_stat) { 248 case RPC_PMAPFAILURE: 249 strncat(str, " - ", len - 1); 250 strncat(str, 251 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 252 break; 253 254 case RPC_SYSTEMERROR: 255 strncat(str, " - ", len - 1); 256 strncat(str, strerror(rpc_createerr.cf_error.re_errno), 257 len - 4); 258 break; 259 260 case RPC_CANTSEND: 261 case RPC_CANTDECODERES: 262 case RPC_CANTENCODEARGS: 263 case RPC_SUCCESS: 264 case RPC_UNKNOWNPROTO: 265 case RPC_PROGNOTREGISTERED: 266 case RPC_FAILED: 267 case RPC_UNKNOWNHOST: 268 case RPC_CANTDECODEARGS: 269 case RPC_PROCUNAVAIL: 270 case RPC_PROGVERSMISMATCH: 271 case RPC_PROGUNAVAIL: 272 case RPC_AUTHERROR: 273 case RPC_VERSMISMATCH: 274 case RPC_TIMEDOUT: 275 case RPC_CANTRECV: 276 default: 277 break; 278 } 279 str[CLNT_PERROR_BUFLEN-1] = '\0'; 280 return (str); 281 } 282 283 void 284 clnt_pcreateerror(const char *s) 285 { 286 287 assert(s != NULL); 288 289 fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 290 } 291 292 static const char *const auth_errlist[] = { 293 "Authentication OK", /* 0 - AUTH_OK */ 294 "Invalid client credential", /* 1 - AUTH_BADCRED */ 295 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 296 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 297 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 298 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 299 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 300 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 301 }; 302 303 static char * 304 auth_errmsg(enum auth_stat stat) 305 { 306 unsigned int errnum = stat; 307 308 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 309 /* LINTED interface problem */ 310 return (char *)auth_errlist[errnum]; 311 312 return(NULL); 313 } 314