1 /* $NetBSD: clnt_perror.c,v 1.24 2000/06/02 23:11:07 fvdl Exp $ */ 2 3 4 /* 5 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 6 * unrestricted use provided that this legend is included on all tape 7 * media and as a part of the software program in whole or part. Users 8 * may copy or modify Sun RPC without charge, but are not authorized 9 * to license or distribute it to anyone else except as part of a product or 10 * program developed by the user. 11 * 12 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 13 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 14 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 15 * 16 * Sun RPC is provided with no support and without any obligation on the 17 * part of Sun Microsystems, Inc. to assist in its use, correction, 18 * modification or enhancement. 19 * 20 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 21 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 22 * OR ANY PART THEREOF. 23 * 24 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 25 * or profits or other special, indirect and consequential damages, even if 26 * Sun has been advised of the possibility of such damages. 27 * 28 * Sun Microsystems, Inc. 29 * 2550 Garcia Avenue 30 * Mountain View, California 94043 31 */ 32 33 #if defined(LIBC_SCCS) && !defined(lint) 34 static char *sccsid2 = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro"; 35 static char *sccsid = "@(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC"; 36 #endif 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 /* 41 * clnt_perror.c 42 * 43 * Copyright (C) 1984, Sun Microsystems, Inc. 44 * 45 */ 46 #include "namespace.h" 47 #include <assert.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 52 #include <rpc/rpc.h> 53 #include <rpc/types.h> 54 #include <rpc/auth.h> 55 #include <rpc/clnt.h> 56 #include "un-namespace.h" 57 58 static char *buf; 59 60 static char *_buf(void); 61 static char *auth_errmsg(enum auth_stat); 62 #define CLNT_PERROR_BUFLEN 256 63 64 static char * 65 _buf() 66 { 67 68 if (buf == 0) 69 buf = (char *)malloc(CLNT_PERROR_BUFLEN); 70 return (buf); 71 } 72 73 /* 74 * Print reply error info 75 */ 76 char * 77 clnt_sperror(rpch, s) 78 CLIENT *rpch; 79 const char *s; 80 { 81 struct rpc_err e; 82 char *err; 83 char *str; 84 char *strstart; 85 size_t len, i; 86 87 assert(rpch != NULL); 88 assert(s != NULL); 89 90 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 91 if (str == 0) 92 return (0); 93 len = CLNT_PERROR_BUFLEN; 94 strstart = str; 95 CLNT_GETERR(rpch, &e); 96 97 if ((i = snprintf(str, len, "%s: ", s)) > 0) { 98 str += i; 99 len -= i; 100 } 101 102 (void)strncpy(str, clnt_sperrno(e.re_status), len - 1); 103 i = strlen(str); 104 str += i; 105 len -= i; 106 107 switch (e.re_status) { 108 case RPC_SUCCESS: 109 case RPC_CANTENCODEARGS: 110 case RPC_CANTDECODERES: 111 case RPC_TIMEDOUT: 112 case RPC_PROGUNAVAIL: 113 case RPC_PROCUNAVAIL: 114 case RPC_CANTDECODEARGS: 115 case RPC_SYSTEMERROR: 116 case RPC_UNKNOWNHOST: 117 case RPC_UNKNOWNPROTO: 118 case RPC_PMAPFAILURE: 119 case RPC_PROGNOTREGISTERED: 120 case RPC_FAILED: 121 break; 122 123 case RPC_CANTSEND: 124 case RPC_CANTRECV: 125 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 126 if (i > 0) { 127 str += i; 128 len -= i; 129 } 130 break; 131 132 case RPC_VERSMISMATCH: 133 i = snprintf(str, len, "; low version = %u, high version = %u", 134 e.re_vers.low, e.re_vers.high); 135 if (i > 0) { 136 str += i; 137 len -= i; 138 } 139 break; 140 141 case RPC_AUTHERROR: 142 err = auth_errmsg(e.re_why); 143 i = snprintf(str, len, "; why = "); 144 if (i > 0) { 145 str += i; 146 len -= i; 147 } 148 if (err != NULL) { 149 i = snprintf(str, len, "%s",err); 150 } else { 151 i = snprintf(str, len, 152 "(unknown authentication error - %d)", 153 (int) e.re_why); 154 } 155 if (i > 0) { 156 str += i; 157 len -= i; 158 } 159 break; 160 161 case RPC_PROGVERSMISMATCH: 162 i = snprintf(str, len, "; low version = %u, high version = %u", 163 e.re_vers.low, e.re_vers.high); 164 if (i > 0) { 165 str += i; 166 len -= i; 167 } 168 break; 169 170 default: /* unknown */ 171 i = snprintf(str, len, "; s1 = %u, s2 = %u", 172 e.re_lb.s1, e.re_lb.s2); 173 if (i > 0) { 174 str += i; 175 len -= i; 176 } 177 break; 178 } 179 strstart[CLNT_PERROR_BUFLEN-1] = '\0'; 180 return(strstart) ; 181 } 182 183 void 184 clnt_perror(rpch, s) 185 CLIENT *rpch; 186 const char *s; 187 { 188 189 assert(rpch != NULL); 190 assert(s != NULL); 191 192 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 193 } 194 195 static const char *const rpc_errlist[] = { 196 "RPC: Success", /* 0 - RPC_SUCCESS */ 197 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 198 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 199 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 200 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 201 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 202 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 203 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 204 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 205 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 206 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 207 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 208 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 209 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 210 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 211 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 212 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 213 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 214 }; 215 216 217 /* 218 * This interface for use by clntrpc 219 */ 220 char * 221 clnt_sperrno(stat) 222 enum clnt_stat stat; 223 { 224 unsigned int errnum = stat; 225 226 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 227 /* LINTED interface problem */ 228 return (char *)rpc_errlist[errnum]; 229 230 return ("RPC: (unknown error code)"); 231 } 232 233 void 234 clnt_perrno(num) 235 enum clnt_stat num; 236 { 237 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 238 } 239 240 241 char * 242 clnt_spcreateerror(s) 243 const char *s; 244 { 245 char *str; 246 size_t len, i; 247 248 assert(s != NULL); 249 250 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 251 if (str == 0) 252 return(0); 253 len = CLNT_PERROR_BUFLEN; 254 i = snprintf(str, len, "%s: ", s); 255 if (i > 0) 256 len -= i; 257 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 258 switch (rpc_createerr.cf_stat) { 259 case RPC_PMAPFAILURE: 260 (void) strncat(str, " - ", len - 1); 261 (void) strncat(str, 262 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 263 break; 264 265 case RPC_SYSTEMERROR: 266 (void)strncat(str, " - ", len - 1); 267 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 268 len - 4); 269 break; 270 271 case RPC_CANTSEND: 272 case RPC_CANTDECODERES: 273 case RPC_CANTENCODEARGS: 274 case RPC_SUCCESS: 275 case RPC_UNKNOWNPROTO: 276 case RPC_PROGNOTREGISTERED: 277 case RPC_FAILED: 278 case RPC_UNKNOWNHOST: 279 case RPC_CANTDECODEARGS: 280 case RPC_PROCUNAVAIL: 281 case RPC_PROGVERSMISMATCH: 282 case RPC_PROGUNAVAIL: 283 case RPC_AUTHERROR: 284 case RPC_VERSMISMATCH: 285 case RPC_TIMEDOUT: 286 case RPC_CANTRECV: 287 default: 288 break; 289 } 290 str[CLNT_PERROR_BUFLEN-1] = '\0'; 291 return (str); 292 } 293 294 void 295 clnt_pcreateerror(s) 296 const char *s; 297 { 298 299 assert(s != NULL); 300 301 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 302 } 303 304 static const char *const auth_errlist[] = { 305 "Authentication OK", /* 0 - AUTH_OK */ 306 "Invalid client credential", /* 1 - AUTH_BADCRED */ 307 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 308 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 309 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 310 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 311 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 312 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 313 }; 314 315 static char * 316 auth_errmsg(stat) 317 enum auth_stat stat; 318 { 319 unsigned int errnum = stat; 320 321 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 322 /* LINTED interface problem */ 323 return (char *)auth_errlist[errnum]; 324 325 return(NULL); 326 } 327