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 void clnt_perrno(); 80 char *err; 81 char *bufstart = get_buf(); 82 char *str = bufstart; 83 char *strstart = str; 84 char *strend; 85 86 if (str == 0) 87 return (0); 88 strend = str + BUFSIZ; 89 CLNT_GETERR(rpch, &e); 90 91 strncpy (str, s, BUFSIZ - 1); 92 str[BUFSIZ - 1] = 0; 93 strncat (str, ": ", BUFSIZ - 1 - strlen (bufstart)); 94 str += strlen(str); 95 strncat (str, clnt_sperrno(e.re_status), BUFSIZ - 1 - strlen (bufstart)); 96 strstart[BUFSIZ - 1] = '\0'; 97 str += strlen(str); 98 99 switch (e.re_status) { 100 case RPC_SUCCESS: 101 case RPC_CANTENCODEARGS: 102 case RPC_CANTDECODERES: 103 case RPC_TIMEDOUT: 104 case RPC_PROGUNAVAIL: 105 case RPC_PROCUNAVAIL: 106 case RPC_CANTDECODEARGS: 107 case RPC_SYSTEMERROR: 108 case RPC_UNKNOWNHOST: 109 case RPC_UNKNOWNPROTO: 110 case RPC_PMAPFAILURE: 111 case RPC_PROGNOTREGISTERED: 112 case RPC_FAILED: 113 break; 114 115 case RPC_CANTSEND: 116 case RPC_CANTRECV: 117 /* 10 for the string */ 118 if (str - bufstart + 10 + strlen(strerror(e.re_errno)) < BUFSIZ) 119 (void) snprintf(str, strend-str, "; errno = %s", 120 strerror(e.re_errno)); 121 str += strlen(str); 122 break; 123 124 case RPC_VERSMISMATCH: 125 /* 33 for the string, 22 for the numbers */ 126 if(str - bufstart + 33 + 22 < BUFSIZ) 127 (void) snprintf(str, strend-str, 128 "; low version = %lu, high version = %lu", 129 (u_long) e.re_vers.low, 130 (u_long) e.re_vers.high); 131 str += strlen(str); 132 break; 133 134 case RPC_AUTHERROR: 135 err = auth_errmsg(e.re_why); 136 /* 8 for the string */ 137 if(str - bufstart + 8 < BUFSIZ) 138 (void) snprintf(str, strend-str, "; why = "); 139 str += strlen(str); 140 if (err != NULL) { 141 if(str - bufstart + strlen(err) < BUFSIZ) 142 (void) snprintf(str, strend-str, "%s",err); 143 } else { 144 /* 33 for the string, 11 for the number */ 145 if(str - bufstart + 33 + 11 < BUFSIZ) 146 (void) snprintf(str, strend-str, 147 "(unknown authentication error - %d)", 148 (int) e.re_why); 149 } 150 str += strlen(str); 151 break; 152 153 case RPC_PROGVERSMISMATCH: 154 /* 33 for the string, 22 for the numbers */ 155 if(str - bufstart + 33 + 22 < BUFSIZ) 156 (void) snprintf(str, strend-str, 157 "; low version = %lu, high version = %lu", 158 (u_long) e.re_vers.low, 159 (u_long) e.re_vers.high); 160 str += strlen(str); 161 break; 162 163 default: /* unknown */ 164 /* 14 for the string, 22 for the numbers */ 165 if(str - bufstart + 14 + 22 < BUFSIZ) 166 (void) snprintf(str, strend-str, 167 "; s1 = %lu, s2 = %lu", 168 (u_long) e.re_lb.s1, 169 (u_long) e.re_lb.s2); 170 str += strlen(str); 171 break; 172 } 173 if (str - bufstart + 1 < BUFSIZ) 174 (void) snprintf(str, strend-str, "\n"); 175 return(strstart) ; 176 } 177 178 void 179 clnt_perror(CLIENT *rpch, char *s) 180 { 181 (void) fprintf(stderr,"%s",clnt_sperror(rpch,s)); 182 } 183 184 185 struct rpc_errtab { 186 enum clnt_stat status; 187 char *message; 188 }; 189 190 static struct rpc_errtab rpc_errlist[] = { 191 { RPC_SUCCESS, 192 "RPC: Success" }, 193 { RPC_CANTENCODEARGS, 194 "RPC: Can't encode arguments" }, 195 { RPC_CANTDECODERES, 196 "RPC: Can't decode result" }, 197 { RPC_CANTSEND, 198 "RPC: Unable to send" }, 199 { RPC_CANTRECV, 200 "RPC: Unable to receive" }, 201 { RPC_TIMEDOUT, 202 "RPC: Timed out" }, 203 { RPC_VERSMISMATCH, 204 "RPC: Incompatible versions of RPC" }, 205 { RPC_AUTHERROR, 206 "RPC: Authentication error" }, 207 { RPC_PROGUNAVAIL, 208 "RPC: Program unavailable" }, 209 { RPC_PROGVERSMISMATCH, 210 "RPC: Program/version mismatch" }, 211 { RPC_PROCUNAVAIL, 212 "RPC: Procedure unavailable" }, 213 { RPC_CANTDECODEARGS, 214 "RPC: Server can't decode arguments" }, 215 { RPC_SYSTEMERROR, 216 "RPC: Remote system error" }, 217 { RPC_UNKNOWNHOST, 218 "RPC: Unknown host" }, 219 { RPC_UNKNOWNPROTO, 220 "RPC: Unknown protocol" }, 221 { RPC_PMAPFAILURE, 222 "RPC: Port mapper failure" }, 223 { RPC_PROGNOTREGISTERED, 224 "RPC: Program not registered"}, 225 { RPC_FAILED, 226 "RPC: Failed (unspecified error)"} 227 }; 228 229 230 /* 231 * This interface for use by clntrpc 232 */ 233 char * 234 clnt_sperrno(enum clnt_stat stat) 235 { 236 unsigned int i; 237 238 for (i = 0; i < sizeof(rpc_errlist)/sizeof(struct rpc_errtab); i++) { 239 if (rpc_errlist[i].status == stat) { 240 return (rpc_errlist[i].message); 241 } 242 } 243 return ("RPC: (unknown error code)"); 244 } 245 246 void 247 clnt_perrno(enum clnt_stat num) 248 { 249 (void) fprintf(stderr,"%s",clnt_sperrno(num)); 250 } 251 252 253 char * 254 clnt_spcreateerror(char *s) 255 { 256 char *str = get_buf(); 257 char *strend; 258 259 if (str == 0) 260 return(0); 261 strend = str+BUFSIZ; 262 (void) snprintf(str, strend-str, "%s: ", s); 263 str[BUFSIZ - 1] = '\0'; 264 (void) strncat(str, clnt_sperrno(rpc_createerr.cf_stat), BUFSIZ - 1); 265 switch (rpc_createerr.cf_stat) { 266 case RPC_PMAPFAILURE: 267 (void) strncat(str, " - ", BUFSIZ - 1 - strlen(str)); 268 (void) strncat(str, 269 clnt_sperrno(rpc_createerr.cf_error.re_status), 270 BUFSIZ - 1 - strlen(str)); 271 break; 272 273 case RPC_SYSTEMERROR: 274 (void) strncat(str, " - ", BUFSIZ - 1 - strlen(str)); 275 { 276 const char *m = strerror(rpc_createerr.cf_error.re_errno); 277 if (m) 278 (void) strncat(str, m, BUFSIZ - 1 - strlen(str)); 279 else 280 (void) snprintf(&str[strlen(str)], BUFSIZ - strlen(str), 281 "Error %d", 282 rpc_createerr.cf_error.re_errno); 283 } 284 break; 285 286 case RPC_CANTSEND: 287 case RPC_CANTDECODERES: 288 case RPC_CANTENCODEARGS: 289 case RPC_SUCCESS: 290 case RPC_UNKNOWNPROTO: 291 case RPC_PROGNOTREGISTERED: 292 case RPC_FAILED: 293 case RPC_UNKNOWNHOST: 294 case RPC_CANTDECODEARGS: 295 case RPC_PROCUNAVAIL: 296 case RPC_PROGVERSMISMATCH: 297 case RPC_PROGUNAVAIL: 298 case RPC_AUTHERROR: 299 case RPC_VERSMISMATCH: 300 case RPC_TIMEDOUT: 301 case RPC_CANTRECV: 302 default: 303 break; 304 } 305 (void) strncat(str, "\n", BUFSIZ - 1 - strlen(str)); 306 return (str); 307 } 308 309 void 310 clnt_pcreateerror(char *s) 311 { 312 (void) fprintf(stderr,"%s",clnt_spcreateerror(s)); 313 } 314 315 struct auth_errtab { 316 enum auth_stat status; 317 char *message; 318 }; 319 320 static struct auth_errtab auth_errlist[] = { 321 { AUTH_OK, 322 "Authentication OK" }, 323 { AUTH_BADCRED, 324 "Invalid client credential" }, 325 { AUTH_REJECTEDCRED, 326 "Server rejected credential" }, 327 { AUTH_BADVERF, 328 "Invalid client verifier" }, 329 { AUTH_REJECTEDVERF, 330 "Server rejected verifier" }, 331 { AUTH_TOOWEAK, 332 "Client credential too weak" }, 333 { AUTH_INVALIDRESP, 334 "Invalid server verifier" }, 335 { AUTH_FAILED, 336 "Failed (unspecified error)" }, 337 }; 338 339 static char * 340 auth_errmsg(enum auth_stat stat) 341 { 342 unsigned int i; 343 344 for (i = 0; i < sizeof(auth_errlist)/sizeof(struct auth_errtab); i++) { 345 if (auth_errlist[i].status == stat) { 346 return(auth_errlist[i].message); 347 } 348 } 349 return(NULL); 350 } 351