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/*
* Copyright 1987 by the Student Information Processing Board
* of the Massachusetts Institute of Technology
* For copyright info, see "Copyright.SIPB".
*
* from: error_message.c,v 1.1 86/11/10 21:34:34 spook Exp $
* $Id: error_message.c,v 1.3 1994/09/09 21:43:22 g89r4222 Exp $
*/
#include <stdio.h>
#include "error_table.h"
extern int sys_nerr;
static char buffer[25];
char *
error_message(code)
int code;
{
register int offset;
register error_table **et;
register int table_num;
register int div;
register char *cp;
offset = code & ((1<<ERRCODE_RANGE)-1);
table_num = code - offset;
if ((_et_list == (error_table **)NULL) && table_num)
goto oops;
if (!table_num) {
if (offset < sys_nerr)
return(sys_errlist[offset]);
else
goto oops;
}
for (et = _et_list; *et != (error_table *)NULL; et++) {
if ((*et)->base == table_num) {
/* This is the right table */
if ((*et)->n_msgs <= offset)
goto oops;
return((*et)->msgs[offset]);
}
}
oops:
cp = buffer;
{
register char *cp1;
for (cp1 = "Unknown code "; *cp1; cp1++, cp++)
*cp = *cp1;
if (table_num) {
for (cp1 = error_table_name(table_num); *cp1; cp1++, cp++)
*cp = *cp1;
*cp++ = ' ';
*cp = '\0';
}
}
div = 1000000000;
if (offset == 0) {
*cp++ = '0';
*cp = '\0';
return(buffer);
}
while (div > offset)
div /= 10;
do {
register int n = offset / div;
*cp++ = '0' + n;
offset -= n * div;
div /= 10;
} while (offset && div);
while (div) {
*cp++ = '0';
div /= 10;
}
*cp = '\0';
return(buffer);
}
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