1 /* $NetBSD: clnt_perror.c,v 1.25 2001/02/13 01:00:21 cgd 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 35 static char *sccsid = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro"; 36 static char *sccsid = "@(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC"; 37 #else 38 __RCSID("$NetBSD: clnt_perror.c,v 1.25 2001/02/13 01:00:21 cgd 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 69 static char *buf; 70 static size_t buflen; 71 72 static char *_buf __P((void)); 73 static char *auth_errmsg __P((enum auth_stat)); 74 75 static 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 */ 88 char * 89 clnt_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 } 180 181 void 182 clnt_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 } 192 193 static const char *const rpc_errlist[] = { 194 "RPC: Success", /* 0 - RPC_SUCCESS */ 195 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 196 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 197 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 198 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 199 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 200 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 201 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 202 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 203 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 204 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 205 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 206 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 207 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 208 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 209 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 210 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 211 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 212 }; 213 214 215 /* 216 * This interface for use by clntrpc 217 */ 218 char * 219 clnt_sperrno(stat) 220 enum clnt_stat stat; 221 { 222 unsigned int errnum = stat; 223 224 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 225 /* LINTED interface problem */ 226 return (char *)rpc_errlist[errnum]; 227 228 return ("RPC: (unknown error code)"); 229 } 230 231 void 232 clnt_perrno(num) 233 enum clnt_stat num; 234 { 235 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 236 } 237 238 239 char * 240 clnt_spcreateerror(s) 241 const char *s; 242 { 243 char *str; 244 size_t len, i; 245 246 _DIAGASSERT(s != NULL); 247 248 str = _buf(); /* side effect: sets "buflen" */ 249 if (str == 0) 250 return(0); 251 len = buflen; 252 i = snprintf(str, len, "%s: ", s); 253 len -= i; 254 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 255 switch (rpc_createerr.cf_stat) { 256 case RPC_PMAPFAILURE: 257 (void) strncat(str, " - ", len - 1); 258 (void) strncat(str, 259 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 260 break; 261 262 case RPC_SYSTEMERROR: 263 (void)strncat(str, " - ", len - 1); 264 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 265 len - 4); 266 break; 267 268 case RPC_CANTSEND: 269 case RPC_CANTDECODERES: 270 case RPC_CANTENCODEARGS: 271 case RPC_SUCCESS: 272 case RPC_UNKNOWNPROTO: 273 case RPC_PROGNOTREGISTERED: 274 case RPC_FAILED: 275 case RPC_UNKNOWNHOST: 276 case RPC_CANTDECODEARGS: 277 case RPC_PROCUNAVAIL: 278 case RPC_PROGVERSMISMATCH: 279 case RPC_PROGUNAVAIL: 280 case RPC_AUTHERROR: 281 case RPC_VERSMISMATCH: 282 case RPC_TIMEDOUT: 283 case RPC_CANTRECV: 284 default: 285 break; 286 } 287 return (str); 288 } 289 290 void 291 clnt_pcreateerror(s) 292 const char *s; 293 { 294 295 _DIAGASSERT(s != NULL); 296 297 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 298 } 299 300 static const char *const auth_errlist[] = { 301 "Authentication OK", /* 0 - AUTH_OK */ 302 "Invalid client credential", /* 1 - AUTH_BADCRED */ 303 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 304 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 305 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 306 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 307 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 308 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 309 }; 310 311 static char * 312 auth_errmsg(stat) 313 enum auth_stat stat; 314 { 315 unsigned int errnum = stat; 316 317 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 318 /* LINTED interface problem */ 319 return (char *)auth_errlist[errnum]; 320 321 return(NULL); 322 } 323