/*
 * Copyright (c) 1988, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. ***REMOVED*** - see
 *    ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strerror.c  8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */

#include <string.h>

#ifdef _DLL
#define sys_nerr (*_sys_nerr_dll)
#endif

#ifndef HAVE_STRERROR
#ifndef _AFXDLL
char *
strerror(num)
int num;
{
    extern int sys_nerr;
    extern char *sys_errlist[];
#define UPREFIX "Unknown error: "
    static char ebuf[40] = UPREFIX; /* 64-bit number + slop */
    register unsigned int errnum;
    register char *p, *t;
    char tmp[40];

    errnum = num; /* convert to unsigned */
    if (errnum < sys_nerr)
        return (sys_errlist[errnum]);

    /* Do this by hand, so we don't include stdio(3). */
    t = tmp;
    do {
        *t++ = "0123456789"[errnum % 10];
    } while (errnum /= 10);
    for (p = ebuf + sizeof(UPREFIX) - 1;;) {
        *p++ = *--t;
        if (t <= tmp)
            break;
    }
    return (ebuf);
}

#endif
#endif /* !HAVE_STRERROR */
