1 /*
2 * com_right.c -- provide Heimdall / Kerberos4kth com_err interfaces
3 * for backwards compatbility
4 *
5 * Copyright (c) 2003 by Theodore Ts'o
6 *
7 * Taken from lib/com_err/error.c from Kerberos4kth distribution.
8 *
9 * Copyright (c) 1997, 1998, 2001 Kungliga Tekniska H�gskolan
10 * (Royal Institute of Technology, Stockholm, Sweden).
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
23 *
24 * 3. Neither the name of the Institute nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 */
40
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include "com_err.h"
45 #include "error_table.h"
46
47 const char *
com_right(struct et_list * list,long code)48 com_right(struct et_list *list, long code)
49 {
50 struct et_list *p;
51 for (p = list; p; p = p->next) {
52 if (code >= p->table->base && code < p->table->base + p->table->n_msgs)
53 return p->table->msgs[code - p->table->base];
54 }
55 return NULL;
56 }
57
58 struct foobar {
59 struct et_list etl;
60 struct error_table tab;
61 };
62
63 /*
64 * We provide this routine for compatibility with Heimdall generated
65 * foo_err.c files, but we don't use this ourselves for foo_err.c
66 * files generated by our compile_et. This is so our foo_err.c
67 * files can be used with older com_err libraries without running
68 * afoul of dependencies.
69 */
70 void
initialize_error_table_r(struct et_list ** list,const char ** messages,int num_errors,long base)71 initialize_error_table_r(struct et_list **list,
72 const char **messages,
73 int num_errors,
74 long base)
75 {
76 struct et_list *et, **end;
77 struct error_table *tab;
78 struct foobar *f;
79
80 for (end = list, et = *list; et; end = &et->next, et = et->next)
81 if (et->table->msgs == messages)
82 return;
83 f = malloc(sizeof(*f));
84 if (f == NULL)
85 return;
86 et = &f->etl;
87 et->table = tab = &f->tab;
88 tab->msgs = messages;
89 tab->n_msgs = num_errors;
90 tab->base = base;
91 et->next = NULL;
92 *end = et;
93 }
94
95
96 void
free_error_table(struct et_list * et)97 free_error_table(struct et_list *et)
98 {
99 while(et){
100 struct et_list *p = et;
101 et = et->next;
102 free(p);
103 }
104 }
105