blob: 18883269e608c7c3fe114b3bc0e0d12632df11ef (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/*
* Copyright 1987 by MIT Student Information Processing Board
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose is hereby granted, provided that
* the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. M.I.T. and the
* M.I.T. S.I.P.B. make no representations about the suitability of
* this software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#include "com_err.h"
#include "error_table.h"
#include "internal.h"
static const char char_set[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
static char buf[6];
const char * error_table_name(num)
errcode_t num;
{
int ch;
int i;
char *p;
/* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */
p = buf;
num >>= ERRCODE_RANGE;
/* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */
num &= 077777777L;
/* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
for (i = 4; i >= 0; i--) {
ch = (int)((num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1));
if (ch != 0)
*p++ = char_set[ch-1];
}
*p = '\0';
return(buf);
}
|
