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 */ 34 35 /* 36 * clnt_perror.c 37 * 38 * Copyright (C) 1984, Sun Microsystems, Inc. 39 * 40 */ 41 #include "namespace.h" 42 #include <assert.h> 43 #include <stdio.h> 44 #include <stdlib.h> 45 #include <string.h> 46 47 #include <rpc/rpc.h> 48 #include <rpc/types.h> 49 #include <rpc/auth.h> 50 #include <rpc/clnt.h> 51 #include "un-namespace.h" 52 53 static char *buf; 54 55 static char *_buf(void); 56 static char *auth_errmsg(enum auth_stat); 57 #define CLNT_PERROR_BUFLEN 256 58 59 static char * 60 _buf(void) 61 { 62 63 if (buf == NULL) 64 buf = (char *)malloc(CLNT_PERROR_BUFLEN); 65 return (buf); 66 } 67 68 /* 69 * Print reply error info 70 */ 71 char * 72 clnt_sperror(CLIENT *rpch, const char *s) 73 { 74 struct rpc_err e; 75 char *err; 76 char *str; 77 char *strstart; 78 size_t len, i; 79 80 assert(rpch != NULL); 81 assert(s != NULL); 82 83 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 84 if (str == NULL) 85 return (0); 86 len = CLNT_PERROR_BUFLEN; 87 strstart = str; 88 CLNT_GETERR(rpch, &e); 89 90 if ((i = snprintf(str, len, "%s: ", s)) > 0) { 91 str += i; 92 len -= i; 93 } 94 95 strncpy(str, clnt_sperrno(e.re_status), len - 1); 96 i = strlen(str); 97 str += i; 98 len -= i; 99 100 switch (e.re_status) { 101 case RPC_SUCCESS: 102 case RPC_CANTENCODEARGS: 103 case RPC_CANTDECODERES: 104 case RPC_TIMEDOUT: 105 case RPC_PROGUNAVAIL: 106 case RPC_PROCUNAVAIL: 107 case RPC_CANTDECODEARGS: 108 case RPC_SYSTEMERROR: 109 case RPC_UNKNOWNHOST: 110 case RPC_UNKNOWNPROTO: 111 case RPC_PMAPFAILURE: 112 case RPC_PROGNOTREGISTERED: 113 case RPC_FAILED: 114 break; 115 116 case RPC_CANTSEND: 117 case RPC_CANTRECV: 118 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 119 if (i > 0) { 120 str += i; 121 len -= i; 122 } 123 break; 124 125 case RPC_VERSMISMATCH: 126 i = snprintf(str, len, "; low version = %u, high version = %u", 127 e.re_vers.low, e.re_vers.high); 128 if (i > 0) { 129 str += i; 130 len -= i; 131 } 132 break; 133 134 case RPC_AUTHERROR: 135 err = auth_errmsg(e.re_why); 136 i = snprintf(str, len, "; why = "); 137 if (i > 0) { 138 str += i; 139 len -= i; 140 } 141 if (err != NULL) { 142 i = snprintf(str, len, "%s",err); 143 } else { 144 i = snprintf(str, len, 145 "(unknown authentication error - %d)", 146 (int) e.re_why); 147 } 148 if (i > 0) { 149 str += i; 150 len -= i; 151 } 152 break; 153 154 case RPC_PROGVERSMISMATCH: 155 i = snprintf(str, len, "; low version = %u, high version = %u", 156 e.re_vers.low, e.re_vers.high); 157 if (i > 0) { 158 str += i; 159 len -= i; 160 } 161 break; 162 163 default: /* unknown */ 164 i = snprintf(str, len, "; s1 = %u, s2 = %u", 165 e.re_lb.s1, e.re_lb.s2); 166 if (i > 0) { 167 str += i; 168 len -= i; 169 } 170 break; 171 } 172 strstart[CLNT_PERROR_BUFLEN-1] = '\0'; 173 return(strstart) ; 174 } 175 176 void 177 clnt_perror(CLIENT *rpch, const char *s) 178 { 179 180 assert(rpch != NULL); 181 assert(s != NULL); 182 183 fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 184 } 185 186 static const char *const rpc_errlist[] = { 187 "RPC: Success", /* 0 - RPC_SUCCESS */ 188 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 189 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 190 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 191 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 192 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 193 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 194 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 195 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 196 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 197 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 198 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 199 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 200 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 201 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 202 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 203 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 204 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 205 }; 206 207 208 /* 209 * This interface for use by clntrpc 210 */ 211 char * 212 clnt_sperrno(enum clnt_stat stat) 213 { 214 unsigned int errnum = stat; 215 216 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 217 /* LINTED interface problem */ 218 return (char *)rpc_errlist[errnum]; 219 220 return ("RPC: (unknown error code)"); 221 } 222 223 void 224 clnt_perrno(enum clnt_stat num) 225 { 226 fprintf(stderr, "%s\n", clnt_sperrno(num)); 227 } 228 229 230 char * 231 clnt_spcreateerror(const char *s) 232 { 233 char *str; 234 size_t len, i; 235 236 assert(s != NULL); 237 238 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 239 if (str == NULL) 240 return(0); 241 len = CLNT_PERROR_BUFLEN; 242 i = snprintf(str, len, "%s: ", s); 243 if (i > 0) 244 len -= i; 245 strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 246 switch (rpc_createerr.cf_stat) { 247 case RPC_PMAPFAILURE: 248 strncat(str, " - ", len - 1); 249 strncat(str, 250 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 251 break; 252 253 case RPC_SYSTEMERROR: 254 strncat(str, " - ", len - 1); 255 strncat(str, strerror(rpc_createerr.cf_error.re_errno), 256 len - 4); 257 break; 258 259 case RPC_CANTSEND: 260 case RPC_CANTDECODERES: 261 case RPC_CANTENCODEARGS: 262 case RPC_SUCCESS: 263 case RPC_UNKNOWNPROTO: 264 case RPC_PROGNOTREGISTERED: 265 case RPC_FAILED: 266 case RPC_UNKNOWNHOST: 267 case RPC_CANTDECODEARGS: 268 case RPC_PROCUNAVAIL: 269 case RPC_PROGVERSMISMATCH: 270 case RPC_PROGUNAVAIL: 271 case RPC_AUTHERROR: 272 case RPC_VERSMISMATCH: 273 case RPC_TIMEDOUT: 274 case RPC_CANTRECV: 275 default: 276 break; 277 } 278 str[CLNT_PERROR_BUFLEN-1] = '\0'; 279 return (str); 280 } 281 282 void 283 clnt_pcreateerror(const char *s) 284 { 285 286 assert(s != NULL); 287 288 fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 289 } 290 291 static const char *const auth_errlist[] = { 292 "Authentication OK", /* 0 - AUTH_OK */ 293 "Invalid client credential", /* 1 - AUTH_BADCRED */ 294 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 295 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 296 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 297 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 298 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 299 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 300 }; 301 302 static char * 303 auth_errmsg(enum auth_stat stat) 304 { 305 unsigned int errnum = stat; 306 307 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 308 /* LINTED interface problem */ 309 return (char *)auth_errlist[errnum]; 310 311 return(NULL); 312 } 313