1 /* $NetBSD: clnt_perror.c,v 1.24 2000/06/02 23:11:07 fvdl Exp $ */
2
3
4 /*-
5 * SPDX-License-Identifier: BSD-3-Clause
6 *
7 * Copyright (c) 2009, Sun Microsystems, Inc.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
12 * - Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 * - Redistributions in binary form must reproduce the above copyright notice,
15 * this list of conditions and the following disclaimer in the documentation
16 * and/or other materials provided with the distribution.
17 * - Neither the name of Sun Microsystems, Inc. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #if defined(LIBC_SCCS) && !defined(lint)
35 static char *sccsid2 = "@(#)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 #endif
38 /*
39 * clnt_perror.c
40 *
41 * Copyright (C) 1984, Sun Microsystems, Inc.
42 *
43 */
44 #include "namespace.h"
45 #include <assert.h>
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <string.h>
49
50 #include <rpc/rpc.h>
51 #include <rpc/types.h>
52 #include <rpc/auth.h>
53 #include <rpc/clnt.h>
54 #include "un-namespace.h"
55
56 static char *buf;
57
58 static char *_buf(void);
59 static char *auth_errmsg(enum auth_stat);
60 #define CLNT_PERROR_BUFLEN 256
61
62 static char *
_buf(void)63 _buf(void)
64 {
65
66 if (buf == NULL)
67 buf = malloc(CLNT_PERROR_BUFLEN);
68 return (buf);
69 }
70
71 /*
72 * Print reply error info
73 */
74 char *
clnt_sperror(CLIENT * rpch,const char * s)75 clnt_sperror(CLIENT *rpch, const char *s)
76 {
77 struct rpc_err e;
78 char *err;
79 char *str;
80 char *strstart;
81 size_t len, i;
82
83 assert(rpch != NULL);
84 assert(s != NULL);
85
86 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */
87 if (str == NULL)
88 return (0);
89 len = CLNT_PERROR_BUFLEN;
90 strstart = str;
91 CLNT_GETERR(rpch, &e);
92
93 if ((i = snprintf(str, len, "%s: ", s)) > 0) {
94 str += i;
95 len -= i;
96 }
97
98 (void)strncpy(str, clnt_sperrno(e.re_status), len - 1);
99 i = strlen(str);
100 str += i;
101 len -= i;
102
103 switch (e.re_status) {
104 case RPC_SUCCESS:
105 case RPC_CANTENCODEARGS:
106 case RPC_CANTDECODERES:
107 case RPC_TIMEDOUT:
108 case RPC_PROGUNAVAIL:
109 case RPC_PROCUNAVAIL:
110 case RPC_CANTDECODEARGS:
111 case RPC_SYSTEMERROR:
112 case RPC_UNKNOWNHOST:
113 case RPC_UNKNOWNPROTO:
114 case RPC_PMAPFAILURE:
115 case RPC_PROGNOTREGISTERED:
116 case RPC_FAILED:
117 break;
118
119 case RPC_CANTSEND:
120 case RPC_CANTRECV:
121 i = snprintf(str, len, "; errno = %s", strerror(e.re_errno));
122 if (i > 0) {
123 str += i;
124 len -= i;
125 }
126 break;
127
128 case RPC_VERSMISMATCH:
129 i = snprintf(str, len, "; low version = %u, high version = %u",
130 e.re_vers.low, e.re_vers.high);
131 if (i > 0) {
132 str += i;
133 len -= i;
134 }
135 break;
136
137 case RPC_AUTHERROR:
138 err = auth_errmsg(e.re_why);
139 i = snprintf(str, len, "; why = ");
140 if (i > 0) {
141 str += i;
142 len -= i;
143 }
144 if (err != NULL) {
145 i = snprintf(str, len, "%s",err);
146 } else {
147 i = snprintf(str, len,
148 "(unknown authentication error - %d)",
149 (int) e.re_why);
150 }
151 if (i > 0) {
152 str += i;
153 len -= i;
154 }
155 break;
156
157 case RPC_PROGVERSMISMATCH:
158 i = snprintf(str, len, "; low version = %u, high version = %u",
159 e.re_vers.low, e.re_vers.high);
160 if (i > 0) {
161 str += i;
162 len -= i;
163 }
164 break;
165
166 default: /* unknown */
167 i = snprintf(str, len, "; s1 = %u, s2 = %u",
168 e.re_lb.s1, e.re_lb.s2);
169 if (i > 0) {
170 str += i;
171 len -= i;
172 }
173 break;
174 }
175 strstart[CLNT_PERROR_BUFLEN-1] = '\0';
176 return(strstart) ;
177 }
178
179 void
clnt_perror(CLIENT * rpch,const char * s)180 clnt_perror(CLIENT *rpch, const char *s)
181 {
182
183 assert(rpch != NULL);
184 assert(s != NULL);
185
186 (void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s));
187 }
188
189 static const char *const rpc_errlist[] = {
190 "RPC: Success", /* 0 - RPC_SUCCESS */
191 "RPC: Can't encode arguments", /* 1 - RPC_CANTENCODEARGS */
192 "RPC: Can't decode result", /* 2 - RPC_CANTDECODERES */
193 "RPC: Unable to send", /* 3 - RPC_CANTSEND */
194 "RPC: Unable to receive", /* 4 - RPC_CANTRECV */
195 "RPC: Timed out", /* 5 - RPC_TIMEDOUT */
196 "RPC: Incompatible versions of RPC", /* 6 - RPC_VERSMISMATCH */
197 "RPC: Authentication error", /* 7 - RPC_AUTHERROR */
198 "RPC: Program unavailable", /* 8 - RPC_PROGUNAVAIL */
199 "RPC: Program/version mismatch", /* 9 - RPC_PROGVERSMISMATCH */
200 "RPC: Procedure unavailable", /* 10 - RPC_PROCUNAVAIL */
201 "RPC: Server can't decode arguments", /* 11 - RPC_CANTDECODEARGS */
202 "RPC: Remote system error", /* 12 - RPC_SYSTEMERROR */
203 "RPC: Unknown host", /* 13 - RPC_UNKNOWNHOST */
204 "RPC: Port mapper failure", /* 14 - RPC_PMAPFAILURE */
205 "RPC: Program not registered", /* 15 - RPC_PROGNOTREGISTERED */
206 "RPC: Failed (unspecified error)", /* 16 - RPC_FAILED */
207 "RPC: Unknown protocol" /* 17 - RPC_UNKNOWNPROTO */
208 };
209
210
211 /*
212 * This interface for use by clntrpc
213 */
214 char *
clnt_sperrno(enum clnt_stat stat)215 clnt_sperrno(enum clnt_stat stat)
216 {
217 unsigned int errnum = stat;
218
219 if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0])))
220 /* LINTED interface problem */
221 return (char *)rpc_errlist[errnum];
222
223 return ("RPC: (unknown error code)");
224 }
225
226 void
clnt_perrno(enum clnt_stat num)227 clnt_perrno(enum clnt_stat num)
228 {
229 (void) fprintf(stderr, "%s\n", clnt_sperrno(num));
230 }
231
232
233 char *
clnt_spcreateerror(const char * s)234 clnt_spcreateerror(const char *s)
235 {
236 char *str;
237 size_t len, i;
238
239 assert(s != NULL);
240
241 str = _buf(); /* side effect: sets CLNT_PERROR_BUFLEN */
242 if (str == NULL)
243 return(0);
244 len = CLNT_PERROR_BUFLEN;
245 i = snprintf(str, len, "%s: ", s);
246 if (i > 0)
247 len -= i;
248 (void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1);
249 switch (rpc_createerr.cf_stat) {
250 case RPC_PMAPFAILURE:
251 (void) strncat(str, " - ", len - 1);
252 (void) strncat(str,
253 clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4);
254 break;
255
256 case RPC_SYSTEMERROR:
257 (void)strncat(str, " - ", len - 1);
258 (void)strncat(str, strerror(rpc_createerr.cf_error.re_errno),
259 len - 4);
260 break;
261
262 case RPC_CANTSEND:
263 case RPC_CANTDECODERES:
264 case RPC_CANTENCODEARGS:
265 case RPC_SUCCESS:
266 case RPC_UNKNOWNPROTO:
267 case RPC_PROGNOTREGISTERED:
268 case RPC_FAILED:
269 case RPC_UNKNOWNHOST:
270 case RPC_CANTDECODEARGS:
271 case RPC_PROCUNAVAIL:
272 case RPC_PROGVERSMISMATCH:
273 case RPC_PROGUNAVAIL:
274 case RPC_AUTHERROR:
275 case RPC_VERSMISMATCH:
276 case RPC_TIMEDOUT:
277 case RPC_CANTRECV:
278 default:
279 break;
280 }
281 str[CLNT_PERROR_BUFLEN-1] = '\0';
282 return (str);
283 }
284
285 void
clnt_pcreateerror(const char * s)286 clnt_pcreateerror(const char *s)
287 {
288
289 assert(s != NULL);
290
291 (void) fprintf(stderr, "%s\n", clnt_spcreateerror(s));
292 }
293
294 static const char *const auth_errlist[] = {
295 "Authentication OK", /* 0 - AUTH_OK */
296 "Invalid client credential", /* 1 - AUTH_BADCRED */
297 "Server rejected credential", /* 2 - AUTH_REJECTEDCRED */
298 "Invalid client verifier", /* 3 - AUTH_BADVERF */
299 "Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */
300 "Client credential too weak", /* 5 - AUTH_TOOWEAK */
301 "Invalid server verifier", /* 6 - AUTH_INVALIDRESP */
302 "Failed (unspecified error)", /* 7 - AUTH_FAILED */
303 "Kerberos generic error", /* 8 - AUTH_KERB_GENERIC*/
304 "Kerberos credential expired", /* 9 - AUTH_TIMEEXPIRE */
305 "Bad kerberos ticket file", /* 10 - AUTH_TKT_FILE */
306 "Can't decode kerberos authenticator", /* 11 - AUTH_DECODE */
307 "Address wrong in kerberos ticket", /* 12 - AUTH_NET_ADDR */
308 "GSS-API crediential problem", /* 13 - RPCSEC_GSS_CREDPROBLEM */
309 "GSS-API context problem" /* 14 - RPCSEC_GSS_CTXPROBLEM */
310 };
311
312 static char *
auth_errmsg(enum auth_stat stat)313 auth_errmsg(enum auth_stat stat)
314 {
315 unsigned int errnum = stat;
316
317 if (errnum < (sizeof(auth_errlist)/sizeof(auth_errlist[0])))
318 /* LINTED interface problem */
319 return (char *)auth_errlist[errnum];
320
321 return(NULL);
322 }
323