2 * Copyright (c) 1997 - 2002 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * 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 INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 RCSID("$Id: com_err.c 14930 2005-04-24 19:43:06Z lha $");
44 struct et_list *_et_list = NULL;
48 error_message (long code)
51 const char *p = com_right(_et_list, code);
54 snprintf(msg, sizeof(msg), "Unknown error %ld", code);
58 if (p != NULL && *p != '\0') {
59 strlcpy(msg, p, sizeof(msg));
61 snprintf(msg, sizeof(msg), "Unknown error %ld", code);
66 init_error_table(const char **msgs, long base, int count)
68 initialize_error_table_r(&_et_list, msgs, count, base);
73 default_proc (const char *whoami, long code, const char *fmt, va_list args)
74 __attribute__((__format__(__printf__, 3, 0)));
77 default_proc (const char *whoami, long code, const char *fmt, va_list args)
80 fprintf(stderr, "%s: ", whoami);
82 fprintf(stderr, "%s ", error_message(code));
84 vfprintf(stderr, fmt, args);
85 fprintf(stderr, "\r\n"); /* ??? */
88 static errf com_err_hook = default_proc;
91 com_err_va (const char *whoami,
96 (*com_err_hook) (whoami, code, fmt, args);
100 com_err (const char *whoami,
107 com_err_va (whoami, code, fmt, ap);
112 set_com_err_hook (errf new)
114 errf old = com_err_hook;
119 com_err_hook = default_proc;
125 reset_com_err_hook (void)
127 return set_com_err_hook(NULL);
130 #define ERRCODE_RANGE 8 /* # of bits to shift table number */
131 #define BITS_PER_CHAR 6 /* # bits to shift per character in name */
133 static const char char_set[] =
134 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
139 error_table_name(int num)
145 /* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */
147 num >>= ERRCODE_RANGE;
148 /* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */
150 /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
151 for (i = 4; i >= 0; i--) {
152 ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1);
154 *p++ = char_set[ch-1];
161 add_to_error_table(struct et_list *new_table)
165 for (et = _et_list; et; et = et->next) {
166 if (et->table->base == new_table->table->base)
170 new_table->next = _et_list;
171 _et_list = new_table;