sunrpc/clnt_perr.c

   1 /* @(#)clnt_perror.c    2.1 88/07/29 4.0 RPCSRC */
   2 /*
   3  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   4  * unrestricted use provided that this legend is included on all tape
   5  * media and as a part of the software program in whole or part.  Users
   6  * may copy or modify Sun RPC without charge, but are not authorized
   7  * to license or distribute it to anyone else except as part of a product or
   8  * program developed by the user.
   9  *
  10  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  11  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  12  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  13  *
  14  * Sun RPC is provided with no support and without any obligation on the
  15  * part of Sun Microsystems, Inc. to assist in its use, correction,
  16  * modification or enhancement.
  17  *
  18  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  19  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  20  * OR ANY PART THEREOF.
  21  *
  22  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  23  * or profits or other special, indirect and consequential damages, even if
  24  * Sun has been advised of the possibility of such damages.
  25  *
  26  * Sun Microsystems, Inc.
  27  * 2550 Garcia Avenue
  28  * Mountain View, California  94043
  29  */
  30 #if !defined(lint) && defined(SCCSIDS)
  31 static char sccsid[] = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro";
  32 #endif
  33
  34 /*
  35  * clnt_perror.c
  36  *
  37  * Copyright (C) 1984, Sun Microsystems, Inc.
  38  *
  39  */
  40 #include <stdio.h>
  41 #include <string.h>
  42 #include <libintl.h>
  43 #include <rpc/rpc.h>
  44
  45 #ifdef USE_IN_LIBIO
  46 # include <wchar.h>
  47 # include <libio/iolibio.h>
  48 #endif
  49
  50 static char *auth_errmsg (enum auth_stat stat) internal_function;
  51
  52 #ifdef _RPC_THREAD_SAFE_
  53 /*
  54  * Making buf a preprocessor macro requires renaming the local
  55  * buf variable in a few functions.  Overriding a global variable
  56  * with a local variable of the same name is a bad idea, anyway.
  57  */
  58 #define buf RPC_THREAD_VARIABLE(clnt_perr_buf_s)
  59 #else
  60 static char *buf;
  61 #endif
  62
  63 /*
  64  * Print reply error info
  65  */
  66 char *
  67 clnt_sperror (CLIENT * rpch, const char *msg)
  68 {
  69   struct rpc_err e;
  70   CLNT_GETERR (rpch, &e);
  71
  72   const char *errstr = clnt_sperrno (e.re_status);
  73
  74   char chrbuf[1024];
  75   char *str;
  76   char *tmpstr;
  77   int res;
  78   switch (e.re_status)
  79     {
  80     case RPC_SUCCESS:
  81     case RPC_CANTENCODEARGS:
  82     case RPC_CANTDECODERES:
  83     case RPC_TIMEDOUT:
  84     case RPC_PROGUNAVAIL:
  85     case RPC_PROCUNAVAIL:
  86     case RPC_CANTDECODEARGS:
  87     case RPC_SYSTEMERROR:
  88     case RPC_UNKNOWNHOST:
  89     case RPC_UNKNOWNPROTO:
  90     case RPC_PMAPFAILURE:
  91     case RPC_PROGNOTREGISTERED:
  92     case RPC_FAILED:
  93       res = __asprintf (&str, "%s: %s\n", msg, errstr);
  94       break;
  95
  96     case RPC_CANTSEND:
  97     case RPC_CANTRECV:
  98       res = __asprintf (&str, "%s: %s; errno = %s\n",
  99                         msg, errstr, __strerror_r (e.re_errno,
 100                                                    chrbuf, sizeof chrbuf));
 101       break;
 102
 103     case RPC_VERSMISMATCH:
 104       res = __asprintf (&str,
 105                         _("%s: %s; low version = %lu, high version = %lu"),
 106                         msg, errstr, e.re_vers.low, e.re_vers.high);
 107       break;
 108
 109     case RPC_AUTHERROR:
 110       tmpstr = auth_errmsg (e.re_why);
 111       if (tmpstr != NULL)
 112         res = __asprintf (&str, _("%s: %s; why = %s\n"), msg, errstr, tmpstr);
 113       else
 114         res = __asprintf (&str, _("\
 115 %s: %s; why = (unknown authentication error - %d)\n"),
 116                           msg, errstr, (int) e.re_why);
 117       break;
 118
 119     case RPC_PROGVERSMISMATCH:
 120       res = __asprintf (&str,
 121                         _("%s: %s; low version = %lu, high version = %lu"),
 122                         msg, errstr, e.re_vers.low, e.re_vers.high);
 123       break;
 124
 125     default:                    /* unknown */
 126       res = __asprintf (&str, "%s: %s; s1 = %lu, s2 = %lu",
 127                         msg, errstr, e.re_lb.s1, e.re_lb.s2);
 128       break;
 129     }
 130
 131   if (res < 0)
 132     return NULL;
 133
 134   char *oldbuf = buf;
 135   buf = str;
 136   free (oldbuf);
 137
 138   return str;
 139 }
 140 libc_hidden_def (clnt_sperror)
 141
 142 void
 143 clnt_perror (CLIENT * rpch, const char *msg)
 144 {
 145   (void) __fxprintf (NULL, "%s", clnt_sperror (rpch, msg));
 146 }
 147 libc_hidden_def (clnt_perror)
 148
 149
 150 struct rpc_errtab
 151 {
 152   enum clnt_stat status;
 153   unsigned int message_off;
 154 };
 155
 156 static const char rpc_errstr[] =
 157 {
 158 #define RPC_SUCCESS_IDX         0
 159   N_("RPC: Success")
 160   "\0"
 161 #define RPC_CANTENCODEARGS_IDX  (RPC_SUCCESS_IDX + sizeof "RPC: Success")
 162   N_("RPC: Can't encode arguments")
 163   "\0"
 164 #define RPC_CANTDECODERES_IDX   (RPC_CANTENCODEARGS_IDX \
 165                                  + sizeof "RPC: Can't encode arguments")
 166   N_("RPC: Can't decode result")
 167   "\0"
 168 #define RPC_CANTSEND_IDX        (RPC_CANTDECODERES_IDX \
 169                                  + sizeof "RPC: Can't decode result")
 170   N_("RPC: Unable to send")
 171   "\0"
 172 #define RPC_CANTRECV_IDX        (RPC_CANTSEND_IDX \
 173                                  + sizeof "RPC: Unable to send")
 174   N_("RPC: Unable to receive")
 175   "\0"
 176 #define RPC_TIMEDOUT_IDX        (RPC_CANTRECV_IDX \
 177                                  + sizeof "RPC: Unable to receive")
 178   N_("RPC: Timed out")
 179   "\0"
 180 #define RPC_VERSMISMATCH_IDX    (RPC_TIMEDOUT_IDX \
 181                                  + sizeof "RPC: Timed out")
 182   N_("RPC: Incompatible versions of RPC")
 183   "\0"
 184 #define RPC_AUTHERROR_IDX       (RPC_VERSMISMATCH_IDX \
 185                                  + sizeof "RPC: Incompatible versions of RPC")
 186   N_("RPC: Authentication error")
 187   "\0"
 188 #define RPC_PROGUNAVAIL_IDX             (RPC_AUTHERROR_IDX \
 189                                  + sizeof "RPC: Authentication error")
 190   N_("RPC: Program unavailable")
 191   "\0"
 192 #define RPC_PROGVERSMISMATCH_IDX (RPC_PROGUNAVAIL_IDX \
 193                                   + sizeof "RPC: Program unavailable")
 194   N_("RPC: Program/version mismatch")
 195   "\0"
 196 #define RPC_PROCUNAVAIL_IDX     (RPC_PROGVERSMISMATCH_IDX \
 197                                  + sizeof "RPC: Program/version mismatch")
 198   N_("RPC: Procedure unavailable")
 199   "\0"
 200 #define RPC_CANTDECODEARGS_IDX  (RPC_PROCUNAVAIL_IDX \
 201                                  + sizeof "RPC: Procedure unavailable")
 202   N_("RPC: Server can't decode arguments")
 203   "\0"
 204 #define RPC_SYSTEMERROR_IDX     (RPC_CANTDECODEARGS_IDX \
 205                                  + sizeof "RPC: Server can't decode arguments")
 206   N_("RPC: Remote system error")
 207   "\0"
 208 #define RPC_UNKNOWNHOST_IDX     (RPC_SYSTEMERROR_IDX \
 209                                  + sizeof "RPC: Remote system error")
 210   N_("RPC: Unknown host")
 211   "\0"
 212 #define RPC_UNKNOWNPROTO_IDX    (RPC_UNKNOWNHOST_IDX \
 213                                  + sizeof "RPC: Unknown host")
 214   N_("RPC: Unknown protocol")
 215   "\0"
 216 #define RPC_PMAPFAILURE_IDX     (RPC_UNKNOWNPROTO_IDX \
 217                                  + sizeof "RPC: Unknown protocol")
 218   N_("RPC: Port mapper failure")
 219   "\0"
 220 #define RPC_PROGNOTREGISTERED_IDX (RPC_PMAPFAILURE_IDX \
 221                                    + sizeof "RPC: Port mapper failure")
 222   N_("RPC: Program not registered")
 223   "\0"
 224 #define RPC_FAILED_IDX          (RPC_PROGNOTREGISTERED_IDX \
 225                                  + sizeof "RPC: Program not registered")
 226   N_("RPC: Failed (unspecified error)")
 227 };
 228
 229 static const struct rpc_errtab rpc_errlist[] =
 230 {
 231   { RPC_SUCCESS, RPC_SUCCESS_IDX },
 232   { RPC_CANTENCODEARGS, RPC_CANTENCODEARGS_IDX },
 233   { RPC_CANTDECODERES, RPC_CANTDECODERES_IDX },
 234   { RPC_CANTSEND, RPC_CANTSEND_IDX },
 235   { RPC_CANTRECV, RPC_CANTRECV_IDX },
 236   { RPC_TIMEDOUT, RPC_TIMEDOUT_IDX },
 237   { RPC_VERSMISMATCH, RPC_VERSMISMATCH_IDX },
 238   { RPC_AUTHERROR, RPC_AUTHERROR_IDX },
 239   { RPC_PROGUNAVAIL, RPC_PROGUNAVAIL_IDX },
 240   { RPC_PROGVERSMISMATCH, RPC_PROGVERSMISMATCH_IDX },
 241   { RPC_PROCUNAVAIL, RPC_PROCUNAVAIL_IDX },
 242   { RPC_CANTDECODEARGS, RPC_CANTDECODEARGS_IDX },
 243   { RPC_SYSTEMERROR, RPC_SYSTEMERROR_IDX },
 244   { RPC_UNKNOWNHOST, RPC_UNKNOWNHOST_IDX },
 245   { RPC_UNKNOWNPROTO, RPC_UNKNOWNPROTO_IDX },
 246   { RPC_PMAPFAILURE, RPC_PMAPFAILURE_IDX },
 247   { RPC_PROGNOTREGISTERED, RPC_PROGNOTREGISTERED_IDX },
 248   { RPC_FAILED, RPC_FAILED_IDX }
 249 };
 250
 251
 252 /*
 253  * This interface for use by clntrpc
 254  */
 255 char *
 256 clnt_sperrno (enum clnt_stat stat)
 257 {
 258   size_t i;
 259
 260   for (i = 0; i < sizeof (rpc_errlist) / sizeof (struct rpc_errtab); i++)
 261     {
 262       if (rpc_errlist[i].status == stat)
 263         {
 264           return _(rpc_errstr + rpc_errlist[i].message_off);
 265         }
 266     }
 267   return _("RPC: (unknown error code)");
 268 }
 269 libc_hidden_def (clnt_sperrno)
 270
 271 void
 272 clnt_perrno (enum clnt_stat num)
 273 {
 274   (void) __fxprintf (NULL, "%s", clnt_sperrno (num));
 275 }
 276
 277
 278 char *
 279 clnt_spcreateerror (const char *msg)
 280 {
 281   struct rpc_createerr *ce = &get_rpc_createerr ();
 282
 283   char chrbuf[1024];
 284   const char *connector = "";
 285   const char *errstr = "";
 286   switch (ce->cf_stat)
 287     {
 288     case RPC_PMAPFAILURE:
 289       connector = " - ";
 290       errstr = clnt_sperrno (ce->cf_error.re_status);
 291       break;
 292
 293     case RPC_SYSTEMERROR:
 294       connector = " - ";
 295       errstr = __strerror_r (ce->cf_error.re_errno, chrbuf, sizeof chrbuf);
 296       break;
 297
 298     default:
 299       break;
 300     }
 301
 302   char *str;
 303   if (__asprintf (&str, "%s: %s%s%s\n",
 304                   msg, clnt_sperrno (ce->cf_stat), connector, errstr) < 0)
 305     return NULL;
 306
 307   char *oldbuf = buf;
 308   buf = str;
 309   free (oldbuf);
 310
 311   return str;
 312 }
 313 libc_hidden_def (clnt_spcreateerror)
 314
 315 void
 316 clnt_pcreateerror (const char *msg)
 317 {
 318   (void) __fxprintf (NULL, "%s", clnt_spcreateerror (msg));
 319 }
 320
 321 struct auth_errtab
 322 {
 323   enum auth_stat status;
 324   unsigned int message_off;
 325 };
 326
 327 static const char auth_errstr[] =
 328 {
 329 #define AUTH_OK_IDX             0
 330    N_("Authentication OK")
 331    "\0"
 332 #define AUTH_BADCRED_IDX        (AUTH_OK_IDX + sizeof "Authentication OK")
 333    N_("Invalid client credential")
 334    "\0"
 335 #define AUTH_REJECTEDCRED_IDX   (AUTH_BADCRED_IDX \
 336                                  + sizeof "Invalid client credential")
 337    N_("Server rejected credential")
 338    "\0"
 339 #define AUTH_BADVERF_IDX        (AUTH_REJECTEDCRED_IDX \
 340                                  + sizeof "Server rejected credential")
 341    N_("Invalid client verifier")
 342    "\0"
 343 #define AUTH_REJECTEDVERF_IDX   (AUTH_BADVERF_IDX \
 344                                  + sizeof "Invalid client verifier")
 345    N_("Server rejected verifier")
 346    "\0"
 347 #define AUTH_TOOWEAK_IDX        (AUTH_REJECTEDVERF_IDX \
 348                                  + sizeof "Server rejected verifier")
 349    N_("Client credential too weak")
 350    "\0"
 351 #define AUTH_INVALIDRESP_IDX    (AUTH_TOOWEAK_IDX \
 352                                  + sizeof "Client credential too weak")
 353    N_("Invalid server verifier")
 354    "\0"
 355 #define AUTH_FAILED_IDX         (AUTH_INVALIDRESP_IDX \
 356                                  + sizeof "Invalid server verifier")
 357    N_("Failed (unspecified error)")
 358 };
 359
 360 static const struct auth_errtab auth_errlist[] =
 361 {
 362   { AUTH_OK, AUTH_OK_IDX },
 363   { AUTH_BADCRED, AUTH_BADCRED_IDX },
 364   { AUTH_REJECTEDCRED, AUTH_REJECTEDCRED_IDX },
 365   { AUTH_BADVERF, AUTH_BADVERF_IDX },
 366   { AUTH_REJECTEDVERF, AUTH_REJECTEDVERF_IDX },
 367   { AUTH_TOOWEAK, AUTH_TOOWEAK_IDX },
 368   { AUTH_INVALIDRESP, AUTH_INVALIDRESP_IDX },
 369   { AUTH_FAILED, AUTH_FAILED_IDX }
 370 };
 371
 372 static char *
 373 internal_function
 374 auth_errmsg (enum auth_stat stat)
 375 {
 376   size_t i;
 377
 378   for (i = 0; i < sizeof (auth_errlist) / sizeof (struct auth_errtab); i++)
 379     {
 380       if (auth_errlist[i].status == stat)
 381         {
 382           return _(auth_errstr + auth_errlist[i].message_off);
 383         }
 384     }
 385   return NULL;
 386 }
 387
 388
 389 libc_freeres_fn (free_mem)
 390 {
 391   /* Not libc_freeres_ptr, since buf is a macro.  */
 392   free (buf);
 393 }