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 *
get_buf(void)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 *
clnt_sperror(CLIENT * rpch,char * s)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
clnt_perror(CLIENT * rpch,char * s)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 *
clnt_sperrno(enum clnt_stat stat)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
clnt_perrno(enum clnt_stat num)247 clnt_perrno(enum clnt_stat num)
248 {
249 (void) fprintf(stderr,"%s",clnt_sperrno(num));
250 }
251
252
253 char *
clnt_spcreateerror(char * s)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
clnt_pcreateerror(char * s)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 *
auth_errmsg(enum auth_stat stat)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