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 #include <sys/cdefs.h> 34 #if defined(LIBC_SCCS) && !defined(lint) 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 static char *rcsid = "$FreeBSD$"; 38 #endif 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 __P((void)); 61 static char *auth_errmsg __P((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 i = snprintf(str, len, "%s: ", s); 98 str += i; 99 len -= i; 100 101 (void)strncpy(str, clnt_sperrno(e.re_status), len - 1); 102 i = strlen(str); 103 str += i; 104 len -= i; 105 106 switch (e.re_status) { 107 case RPC_SUCCESS: 108 case RPC_CANTENCODEARGS: 109 case RPC_CANTDECODERES: 110 case RPC_TIMEDOUT: 111 case RPC_PROGUNAVAIL: 112 case RPC_PROCUNAVAIL: 113 case RPC_CANTDECODEARGS: 114 case RPC_SYSTEMERROR: 115 case RPC_UNKNOWNHOST: 116 case RPC_UNKNOWNPROTO: 117 case RPC_PMAPFAILURE: 118 case RPC_PROGNOTREGISTERED: 119 case RPC_FAILED: 120 break; 121 122 case RPC_CANTSEND: 123 case RPC_CANTRECV: 124 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno)); 125 str += i; 126 len -= i; 127 break; 128 129 case RPC_VERSMISMATCH: 130 i = snprintf(str, len, "; low version = %u, high version = %u", 131 e.re_vers.low, e.re_vers.high); 132 str += i; 133 len -= i; 134 break; 135 136 case RPC_AUTHERROR: 137 err = auth_errmsg(e.re_why); 138 i = snprintf(str, len, "; why = "); 139 str += i; 140 len -= i; 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 str += i; 149 len -= i; 150 break; 151 152 case RPC_PROGVERSMISMATCH: 153 i = snprintf(str, len, "; low version = %u, high version = %u", 154 e.re_vers.low, e.re_vers.high); 155 str += i; 156 len -= i; 157 break; 158 159 default: /* unknown */ 160 i = snprintf(str, len, "; s1 = %u, s2 = %u", 161 e.re_lb.s1, e.re_lb.s2); 162 str += i; 163 len -= i; 164 break; 165 } 166 strstart[CLNT_PERROR_BUFLEN-1] = '\0'; 167 return(strstart) ; 168 } 169 170 void 171 clnt_perror(rpch, s) 172 CLIENT *rpch; 173 const char *s; 174 { 175 176 assert(rpch != NULL); 177 assert(s != NULL); 178 179 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s)); 180 } 181 182 static const char *const rpc_errlist[] = { 183 "RPC: Success", /* 0 - RPC_SUCCESS */ 184 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 185 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 186 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 187 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 188 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 189 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 190 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 191 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 192 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 193 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 194 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 195 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 196 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 197 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 198 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 199 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 200 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 201 }; 202 203 204 /* 205 * This interface for use by clntrpc 206 */ 207 char * 208 clnt_sperrno(stat) 209 enum clnt_stat stat; 210 { 211 unsigned int errnum = stat; 212 213 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 214 /* LINTED interface problem */ 215 return (char *)rpc_errlist[errnum]; 216 217 return ("RPC: (unknown error code)"); 218 } 219 220 void 221 clnt_perrno(num) 222 enum clnt_stat num; 223 { 224 (void) fprintf(stderr, "%s\n", clnt_sperrno(num)); 225 } 226 227 228 char * 229 clnt_spcreateerror(s) 230 const char *s; 231 { 232 char *str; 233 size_t len, i; 234 235 assert(s != NULL); 236 237 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */ 238 if (str == 0) 239 return(0); 240 len = CLNT_PERROR_BUFLEN; 241 i = snprintf(str, len, "%s: ", s); 242 len -= i; 243 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1); 244 switch (rpc_createerr.cf_stat) { 245 case RPC_PMAPFAILURE: 246 (void) strncat(str, " - ", len - 1); 247 (void) strncat(str, 248 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4); 249 break; 250 251 case RPC_SYSTEMERROR: 252 (void)strncat(str, " - ", len - 1); 253 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno), 254 len - 4); 255 break; 256 257 case RPC_CANTSEND: 258 case RPC_CANTDECODERES: 259 case RPC_CANTENCODEARGS: 260 case RPC_SUCCESS: 261 case RPC_UNKNOWNPROTO: 262 case RPC_PROGNOTREGISTERED: 263 case RPC_FAILED: 264 case RPC_UNKNOWNHOST: 265 case RPC_CANTDECODEARGS: 266 case RPC_PROCUNAVAIL: 267 case RPC_PROGVERSMISMATCH: 268 case RPC_PROGUNAVAIL: 269 case RPC_AUTHERROR: 270 case RPC_VERSMISMATCH: 271 case RPC_TIMEDOUT: 272 case RPC_CANTRECV: 273 default: 274 break; 275 } 276 str[CLNT_PERROR_BUFLEN-1] = '\0'; 277 return (str); 278 } 279 280 void 281 clnt_pcreateerror(s) 282 const char *s; 283 { 284 285 assert(s != NULL); 286 287 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s)); 288 } 289 290 static const char *const auth_errlist[] = { 291 "Authentication OK", /* 0 - AUTH_OK */ 292 "Invalid client credential", /* 1 - AUTH_BADCRED */ 293 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 294 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 295 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 296 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 297 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 298 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 299 }; 300 301 static char * 302 auth_errmsg(stat) 303 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