[moira.git] / util / et / et_name.c

/*
 * Copyright 1987 by MIT Student Information Processing Board
 *
 * For copyright info, see mit-sipb-copyright.h.
 */

#include "error_table.h"
#include "mit-sipb-copyright.h"
#include "internal.h"

#ifndef	lint
static const char copyright[] =
    "Copyright 1987,1988 by Student Information Processing Board, Massachusetts Institute of Technology";
static const char rcsid_et_name_c[] =
    "$Header$";
#endif

static const char char_set[] =
	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";

static char buf[6];

const char * error_table_name(num)
    int 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 &= 077777777;
    /* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
    for (i = 4; i >= 0; i--) {
	ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1);
	if (ch != 0)
	    *p++ = char_set[ch-1];
    }
    *p = '\0';
    return(buf);
}
Commit	Line	Data
d1b2a10e	1	/*
	2	* Copyright 1987 by MIT Student Information Processing Board
	3	*
	4	* For copyright info, see mit-sipb-copyright.h.
	5	*/
	6
	7	#include "error_table.h"
	8	#include "mit-sipb-copyright.h"
	9	#include "internal.h"
	10
	11	#ifndef lint
	12	static const char copyright[] =
	13	"Copyright 1987,1988 by Student Information Processing Board, Massachusetts Institute of Technology";
	14	static const char rcsid_et_name_c[] =
	15	"$Header$";
	16	#endif
	17
	18	static const char char_set[] =
	19	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
	20
	21	static char buf[6];
	22
	23	const char * error_table_name(num)
	24	int num;
	25	{
	26	int ch;
	27	int i;
	28	char *p;
	29
	30	/* num = aa aaa abb bbb bcc ccc cdd ddd d?? ??? ??? */
	31	p = buf;
	32	num >>= ERRCODE_RANGE;
	33	/* num = ?? ??? ??? aaa aaa bbb bbb ccc ccc ddd ddd */
	34	num &= 077777777;
	35	/* num = 00 000 000 aaa aaa bbb bbb ccc ccc ddd ddd */
	36	for (i = 4; i >= 0; i--) {
	37	ch = (num >> BITS_PER_CHAR * i) & ((1 << BITS_PER_CHAR) - 1);
	38	if (ch != 0)
	39	*p++ = char_set[ch-1];
	40	}
	41	*p = '\0';
	42	return(buf);
	43	}