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 * $FreeBSD: src/lib/libc/rpc/clnt_perror.c,v 1.11.2.1 2000/08/23 00:02:04 jhb Exp $ 32 * $DragonFly: src/lib/libc/rpc/clnt_perror.c,v 1.5 2005/11/13 12:27:04 swildner Exp $ 33 */ 34 35 /* 36 * clnt_perror.c 37 * 38 * Copyright (C) 1984, Sun Microsystems, Inc. 39 * 40 */ 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <rpc/rpc.h> 45 #include <rpc/types.h> 46 #include <rpc/auth.h> 47 #include <rpc/clnt.h> 48 49 static char *auth_errmsg(); 50 #define CLNT_PERROR_BUFLEN 256 51 52 static char *buf; 53 54 static char * 55 _buf(void) 56 { 57 58 if (buf == 0) 59 buf = (char *)malloc(CLNT_PERROR_BUFLEN); 60 return (buf); 61 } 62 63 /* 64 * Print reply error info 65 */ 66 char * 67 clnt_sperror(CLIENT *rpch, const char *s) 68 { 69 struct rpc_err e; 70 char *err; 71 char *str = _buf(); 72 char *strstart = str; 73 74 if (str == 0) 75 return (0); 76 CLNT_GETERR(rpch, &e); 77 78 snprintf(str, CLNT_PERROR_BUFLEN, "%s: %s", s, clnt_sperrno(e.re_status)); 79 str += strlen(str); 80 81 switch (e.re_status) { 82 case RPC_SUCCESS: 83 case RPC_CANTENCODEARGS: 84 case RPC_CANTDECODERES: 85 case RPC_TIMEDOUT: 86 case RPC_PROGUNAVAIL: 87 case RPC_PROCUNAVAIL: 88 case RPC_CANTDECODEARGS: 89 case RPC_SYSTEMERROR: 90 case RPC_UNKNOWNHOST: 91 case RPC_UNKNOWNPROTO: 92 case RPC_PMAPFAILURE: 93 case RPC_PROGNOTREGISTERED: 94 case RPC_FAILED: 95 break; 96 97 case RPC_CANTSEND: 98 case RPC_CANTRECV: 99 snprintf(str, CLNT_PERROR_BUFLEN - (str - strstart), 100 "; errno = %s\n", strerror(e.re_errno)); 101 break; 102 103 case RPC_VERSMISMATCH: 104 sprintf(str, 105 "; low version = %lu, high version = %lu\n", 106 (u_long)e.re_vers.low, (u_long)e.re_vers.high); 107 break; 108 109 case RPC_AUTHERROR: 110 err = auth_errmsg(e.re_why); 111 sprintf(str,"; why = "); 112 str += strlen(str); 113 if (err != NULL) { 114 sprintf(str, "%s\n",err); 115 } else { 116 sprintf(str, 117 "(unknown authentication error - %d)\n", 118 (int) e.re_why); 119 } 120 break; 121 122 case RPC_PROGVERSMISMATCH: 123 sprintf(str, 124 "; low version = %lu, high version = %lu\n", 125 (u_long)e.re_vers.low, (u_long)e.re_vers.high); 126 break; 127 128 default: /* unknown */ 129 sprintf(str, 130 "; s1 = %lu, s2 = %lu\n", 131 (long)e.re_lb.s1, (long)e.re_lb.s2); 132 break; 133 } 134 if (strstart[CLNT_PERROR_BUFLEN-2] != '\0') { 135 strstart[CLNT_PERROR_BUFLEN-2] = '\n'; 136 strstart[CLNT_PERROR_BUFLEN-1] = '\0'; 137 } 138 return(strstart) ; 139 } 140 141 void 142 clnt_perror(CLIENT *rpch, const char *s) 143 { 144 fprintf(stderr,"%s\n",clnt_sperror(rpch,s)); 145 } 146 147 148 static const char *const rpc_errlist[] = { 149 "RPC: Success", /* 0 - RPC_SUCCESS */ 150 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */ 151 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */ 152 "RPC: Unable to send", /* 3 - RPC_CANTSEND */ 153 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */ 154 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */ 155 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */ 156 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */ 157 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */ 158 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */ 159 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */ 160 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */ 161 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */ 162 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */ 163 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */ 164 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */ 165 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */ 166 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */ 167 }; 168 169 170 /* 171 * This interface for use by clntrpc 172 */ 173 char * 174 clnt_sperrno(enum clnt_stat stat) 175 { 176 unsigned int errnum = stat; 177 178 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) 179 return (char *)rpc_errlist[errnum]; 180 181 return ("RPC: (unknown error code)"); 182 } 183 184 void 185 clnt_perrno(enum clnt_stat num) 186 { 187 fprintf(stderr,"%s\n",clnt_sperrno(num)); 188 } 189 190 191 char * 192 clnt_spcreateerror(const char *s) 193 { 194 char *str = _buf(); 195 196 if (str == 0) 197 return(0); 198 switch (rpc_createerr.cf_stat) { 199 case RPC_PMAPFAILURE: 200 snprintf(str, CLNT_PERROR_BUFLEN, "%s: %s - %s\n", s, 201 clnt_sperrno(rpc_createerr.cf_stat), 202 clnt_sperrno(rpc_createerr.cf_error.re_status)); 203 break; 204 205 case RPC_SYSTEMERROR: 206 snprintf(str, CLNT_PERROR_BUFLEN, "%s: %s - %s\n", s, 207 clnt_sperrno(rpc_createerr.cf_stat), 208 strerror(rpc_createerr.cf_error.re_errno)); 209 break; 210 default: 211 snprintf(str, CLNT_PERROR_BUFLEN, "%s: %s\n", s, 212 clnt_sperrno(rpc_createerr.cf_stat)); 213 break; 214 } 215 str[CLNT_PERROR_BUFLEN-2] = '\n'; 216 str[CLNT_PERROR_BUFLEN-1] = '\0'; 217 return (str); 218 } 219 220 void 221 clnt_pcreateerror(const char *s) 222 { 223 fprintf(stderr,"%s\n",clnt_spcreateerror(s)); 224 } 225 226 static const char *const auth_errlist[] = { 227 "Authentication OK", /* 0 - AUTH_OK */ 228 "Invalid client credential", /* 1 - AUTH_BADCRED */ 229 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */ 230 "Invalid client verifier", /* 3 - AUTH_BADVERF */ 231 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */ 232 "Client credential too weak", /* 5 - AUTH_TOOWEAK */ 233 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */ 234 "Failed (unspecified error)" /* 7 - AUTH_FAILED */ 235 }; 236 237 static char * 238 auth_errmsg(enum auth_stat stat) 239 { 240 unsigned int errnum = stat; 241 242 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0]))) 243 return (char *)auth_errlist[errnum]; 244 245 return(NULL); 246 } 247