1 /* @(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC */ 2 /* 3 * Copyright (c) 2010, Oracle America, Inc. 4 * 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 18 * * Neither the name of the "Oracle America, Inc." nor the names of 19 * its contributors may be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 23 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 25 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 26 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 28 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 29 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 30 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 #if !defined(lint) && defined(SCCSIDS) 35 static char sccsid[] = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro"; 36 #endif 37 38 /* 39 * clnt_perror.c 40 */ 41 #include "autoconf.h" 42 #include <stdio.h> 43 #include <string.h> 44 #include <errno.h> 45 46 #include <gssrpc/types.h> 47 #include <gssrpc/auth.h> 48 #include <gssrpc/clnt.h> 49 50 #ifndef HAVE_STRERROR 51 #ifdef NEED_SYS_ERRLIST 52 extern char *sys_errlist[]; 53 #endif 54 extern int sys_nerr; 55 #undef strerror 56 #define strerror(N) (((N) > 0 && (N) < sys_nerr) ? sys_errlist[N] : (char *)0) 57 #endif /* HAVE_STRERROR */ 58 static char *auth_errmsg(enum auth_stat); 59 60 61 62 static char *buf; 63 64 static char * 65 get_buf(void) 66 { 67 if (buf == NULL) 68 buf = (char *)malloc(BUFSIZ); 69 return (buf); 70 } 71 72 /* 73 * Print reply error info 74 */ 75 char * 76 clnt_sperror(CLIENT *rpch, char *s) 77 { 78 struct rpc_err e; 79 char *err; 80 char *bufstart = get_buf(); 81 char *str = bufstart; 82 char *strstart = str; 83 char *strend; 84 85 if (str == 0) 86 return (0); 87 strend = str + BUFSIZ; 88 CLNT_GETERR(rpch, &e); 89 90 strncpy (str, s, BUFSIZ - 1); 91 str[BUFSIZ - 1] = 0; 92 strncat (str, ": ", BUFSIZ - 1 - strlen (bufstart)); 93 str += strlen(str); 94 strncat (str, clnt_sperrno(e.re_status), BUFSIZ - 1 - strlen (bufstart)); 95 strstart[BUFSIZ - 1] = '\0'; 96 str += strlen(str); 97 98 switch (e.re_status) { 99 case RPC_SUCCESS: 100 case RPC_CANTENCODEARGS: 101 case RPC_CANTDECODERES: 102 case RPC_TIMEDOUT: 103 case RPC_PROGUNAVAIL: 104 case RPC_PROCUNAVAIL: 105 case RPC_CANTDECODEARGS: 106 case RPC_SYSTEMERROR: 107 case RPC_UNKNOWNHOST: 108 case RPC_UNKNOWNPROTO: 109 case RPC_PMAPFAILURE: 110 case RPC_PROGNOTREGISTERED: 111 case RPC_FAILED: 112 break; 113 114 case RPC_CANTSEND: 115 case RPC_CANTRECV: 116 /* 10 for the string */ 117 if (str - bufstart + 10 + strlen(strerror(e.re_errno)) < BUFSIZ) 118 (void) snprintf(str, strend-str, "; errno = %s", 119 strerror(e.re_errno)); 120 str += strlen(str); 121 break; 122 123 case RPC_VERSMISMATCH: 124 /* 33 for the string, 22 for the numbers */ 125 if(str - bufstart + 33 + 22 < BUFSIZ) 126 (void) snprintf(str, strend-str, 127 "; low version = %lu, high version = %lu", 128 (u_long) e.re_vers.low, 129 (u_long) e.re_vers.high); 130 str += strlen(str); 131 break; 132 133 case RPC_AUTHERROR: 134 err = auth_errmsg(e.re_why); 135 /* 8 for the string */ 136 if(str - bufstart + 8 < BUFSIZ) 137 (void) snprintf(str, strend-str, "; why = "); 138 str += strlen(str); 139 if (err != NULL) { 140 if(str - bufstart + strlen(err) < BUFSIZ) 141 (void) snprintf(str, strend-str, "%s",err); 142 } else { 143 /* 33 for the string, 11 for the number */ 144 if(str - bufstart + 33 + 11 < BUFSIZ) 145 (void) snprintf(str, strend-str, 146 "(unknown authentication error - %d)", 147 (int) e.re_why); 148 } 149 str += strlen(str); 150 break; 151 152 case RPC_PROGVERSMISMATCH: 153 /* 33 for the string, 22 for the numbers */ 154 if(str - bufstart + 33 + 22 < BUFSIZ) 155 (void) snprintf(str, strend-str, 156 "; low version = %lu, high version = %lu", 157 (u_long) e.re_vers.low, 158 (u_long) e.re_vers.high); 159 str += strlen(str); 160 break; 161 162 default: /* unknown */ 163 /* 14 for the string, 22 for the numbers */ 164 if(str - bufstart + 14 + 22 < BUFSIZ) 165 (void) snprintf(str, strend-str, 166 "; s1 = %lu, s2 = %lu", 167 (u_long) e.re_lb.s1, 168 (u_long) e.re_lb.s2); 169 str += strlen(str); 170 break; 171 } 172 if (str - bufstart + 1 < BUFSIZ) 173 (void) snprintf(str, strend-str, "\n"); 174 return(strstart) ; 175 } 176 177 void 178 clnt_perror(CLIENT *rpch, char *s) 179 { 180 (void) fprintf(stderr,"%s",clnt_sperror(rpch,s)); 181 } 182 183 184 struct rpc_errtab { 185 enum clnt_stat status; 186 char *message; 187 }; 188 189 static struct rpc_errtab rpc_errlist[] = { 190 { RPC_SUCCESS, 191 "RPC: Success" }, 192 { RPC_CANTENCODEARGS, 193 "RPC: Can't encode arguments" }, 194 { RPC_CANTDECODERES, 195 "RPC: Can't decode result" }, 196 { RPC_CANTSEND, 197 "RPC: Unable to send" }, 198 { RPC_CANTRECV, 199 "RPC: Unable to receive" }, 200 { RPC_TIMEDOUT, 201 "RPC: Timed out" }, 202 { RPC_VERSMISMATCH, 203 "RPC: Incompatible versions of RPC" }, 204 { RPC_AUTHERROR, 205 "RPC: Authentication error" }, 206 { RPC_PROGUNAVAIL, 207 "RPC: Program unavailable" }, 208 { RPC_PROGVERSMISMATCH, 209 "RPC: Program/version mismatch" }, 210 { RPC_PROCUNAVAIL, 211 "RPC: Procedure unavailable" }, 212 { RPC_CANTDECODEARGS, 213 "RPC: Server can't decode arguments" }, 214 { RPC_SYSTEMERROR, 215 "RPC: Remote system error" }, 216 { RPC_UNKNOWNHOST, 217 "RPC: Unknown host" }, 218 { RPC_UNKNOWNPROTO, 219 "RPC: Unknown protocol" }, 220 { RPC_PMAPFAILURE, 221 "RPC: Port mapper failure" }, 222 { RPC_PROGNOTREGISTERED, 223 "RPC: Program not registered"}, 224 { RPC_FAILED, 225 "RPC: Failed (unspecified error)"} 226 }; 227 228 229 /* 230 * This interface for use by clntrpc 231 */ 232 char * 233 clnt_sperrno(enum clnt_stat stat) 234 { 235 unsigned int i; 236 237 for (i = 0; i < sizeof(rpc_errlist)/sizeof(struct rpc_errtab); i++) { 238 if (rpc_errlist[i].status == stat) { 239 return (rpc_errlist[i].message); 240 } 241 } 242 return ("RPC: (unknown error code)"); 243 } 244 245 void 246 clnt_perrno(enum clnt_stat num) 247 { 248 (void) fprintf(stderr,"%s",clnt_sperrno(num)); 249 } 250 251 252 char * 253 clnt_spcreateerror(char *s) 254 { 255 char *str = get_buf(); 256 char *strend; 257 258 if (str == 0) 259 return(0); 260 strend = str+BUFSIZ; 261 (void) snprintf(str, strend-str, "%s: ", s); 262 str[BUFSIZ - 1] = '\0'; 263 (void) strncat(str, clnt_sperrno(rpc_createerr.cf_stat), BUFSIZ - 1); 264 switch (rpc_createerr.cf_stat) { 265 case RPC_PMAPFAILURE: 266 (void) strncat(str, " - ", BUFSIZ - 1 - strlen(str)); 267 (void) strncat(str, 268 clnt_sperrno(rpc_createerr.cf_error.re_status), 269 BUFSIZ - 1 - strlen(str)); 270 break; 271 272 case RPC_SYSTEMERROR: 273 (void) strncat(str, " - ", BUFSIZ - 1 - strlen(str)); 274 { 275 const char *m = strerror(rpc_createerr.cf_error.re_errno); 276 if (m) 277 (void) strncat(str, m, BUFSIZ - 1 - strlen(str)); 278 else 279 (void) snprintf(&str[strlen(str)], BUFSIZ - strlen(str), 280 "Error %d", 281 rpc_createerr.cf_error.re_errno); 282 } 283 break; 284 285 case RPC_CANTSEND: 286 case RPC_CANTDECODERES: 287 case RPC_CANTENCODEARGS: 288 case RPC_SUCCESS: 289 case RPC_UNKNOWNPROTO: 290 case RPC_PROGNOTREGISTERED: 291 case RPC_FAILED: 292 case RPC_UNKNOWNHOST: 293 case RPC_CANTDECODEARGS: 294 case RPC_PROCUNAVAIL: 295 case RPC_PROGVERSMISMATCH: 296 case RPC_PROGUNAVAIL: 297 case RPC_AUTHERROR: 298 case RPC_VERSMISMATCH: 299 case RPC_TIMEDOUT: 300 case RPC_CANTRECV: 301 default: 302 break; 303 } 304 (void) strncat(str, "\n", BUFSIZ - 1 - strlen(str)); 305 return (str); 306 } 307 308 void 309 clnt_pcreateerror(char *s) 310 { 311 (void) fprintf(stderr,"%s",clnt_spcreateerror(s)); 312 } 313 314 struct auth_errtab { 315 enum auth_stat status; 316 char *message; 317 }; 318 319 static struct auth_errtab auth_errlist[] = { 320 { AUTH_OK, 321 "Authentication OK" }, 322 { AUTH_BADCRED, 323 "Invalid client credential" }, 324 { AUTH_REJECTEDCRED, 325 "Server rejected credential" }, 326 { AUTH_BADVERF, 327 "Invalid client verifier" }, 328 { AUTH_REJECTEDVERF, 329 "Server rejected verifier" }, 330 { AUTH_TOOWEAK, 331 "Client credential too weak" }, 332 { AUTH_INVALIDRESP, 333 "Invalid server verifier" }, 334 { AUTH_FAILED, 335 "Failed (unspecified error)" }, 336 }; 337 338 static char * 339 auth_errmsg(enum auth_stat stat) 340 { 341 unsigned int i; 342 343 for (i = 0; i < sizeof(auth_errlist)/sizeof(struct auth_errtab); i++) { 344 if (auth_errlist[i].status == stat) { 345 return(auth_errlist[i].message); 346 } 347 } 348 return(NULL); 349 } 350