2 * Copyright (c) 1997 - 2000 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
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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
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21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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36 RCSID("$Id: com_err.c,v 1.14.2.1 2000/06/23 03:22:13 assar Exp $");
44 struct et_list *_et_list = NULL;
48 error_message (long code)
51 const char *p = com_right(_et_list, code);
54 if (p != NULL && *p != '\0') {
55 strncpy(msg, p, sizeof(msg) - 1);
56 msg[sizeof(msg) - 1] = 0;
58 sprintf(msg, "Unknown error %ld", code);
63 init_error_table(const char **msgs, long base, int count)
65 initialize_error_table_r(&_et_list, msgs, count, base);
70 default_proc (const char *whoami, long code, const char *fmt, va_list args)
73 fprintf(stderr, "%s: ", whoami);
75 fprintf(stderr, "%s ", error_message(code));
77 vfprintf(stderr, fmt, args);
78 fprintf(stderr, "\r\n"); /* ??? */
81 static errf com_err_hook = default_proc;
84 com_err_va (const char *whoami,
89 (*com_err_hook) (whoami, code, fmt, args);
93 com_err (const char *whoami,
100 com_err_va (whoami, code, fmt, ap);
105 set_com_err_hook (errf new)
107 errf old = com_err_hook;
112 com_err_hook = default_proc;
118 reset_com_err_hook (void)
120 return set_com_err_hook(NULL);
123 #define ERRCODE_RANGE 8 /* # of bits to shift table number */
124 #define BITS_PER_CHAR 6 /* # bits to shift per character in name */
126 static const char char_set[] =
127 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
132 error_table_name(int num)
138 /* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */
140 num >>= ERRCODE_RANGE;
141 /* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */
143 /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
144 for (i = 4; i >= 0; i--) {
145 ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1);
147 *p++ = char_set[ch-1];