2N/A#if defined(LIBC_SCCS) && !defined(lint)
2N/Astatic const char sccsid[] = "@(#)strerror.c 8.1 (Berkeley) 6/4/93";
2N/Astatic const char rcsid[] = "$Id: strerror.c,v 1.6 2008/02/18 03:49:08 marka Exp $";
2N/A#endif /* LIBC_SCCS and not lint */
2N/A
2N/A/*
2N/A * Copyright (c) 1988, 1993
2N/A * The Regents of the University of California. All rights reserved.
2N/A *
2N/A * Redistribution and use in source and binary forms, with or without
2N/A * modification, are permitted provided that the following conditions
2N/A * are met:
2N/A * 1. Redistributions of source code must retain the above copyright
2N/A * notice, this list of conditions and the following disclaimer.
2N/A * 2. Redistributions in binary form must reproduce the above copyright
2N/A * notice, this list of conditions and the following disclaimer in the
2N/A * documentation and/or other materials provided with the distribution.
2N/A * 3. All advertising materials mentioning features or use of this software
2N/A * must display the following acknowledgement:
2N/A * This product includes software developed by the University of
2N/A * California, Berkeley and its contributors.
2N/A * 4. Neither the name of the University nor the names of its contributors
2N/A * may be used to endorse or promote products derived from this software
2N/A * without specific prior written permission.
2N/A *
2N/A * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2N/A * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2N/A * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2N/A * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2N/A * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2N/A * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2N/A * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2N/A * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2N/A * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2N/A * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2N/A * SUCH DAMAGE.
2N/A */
2N/A
2N/A#include "port_before.h"
2N/A
2N/A#include <sys/param.h>
2N/A#include <sys/types.h>
2N/A
2N/A#include <string.h>
2N/A
2N/A#include "port_after.h"
2N/A
2N/A#ifndef NEED_STRERROR
2N/Aint __strerror_unneeded__;
2N/A#else
2N/A
2N/A#ifdef USE_SYSERROR_LIST
2N/Aextern int sys_nerr;
2N/Aextern char *sys_errlist[];
2N/A#endif
2N/A
2N/Aconst char *
2N/Aisc_strerror(int num) {
2N/A#define UPREFIX "Unknown error: "
2N/A static char ebuf[40] = UPREFIX; /*%< 64-bit number + slop */
2N/A u_int errnum;
2N/A char *p, *t;
2N/A#ifndef USE_SYSERROR_LIST
2N/A const char *ret;
2N/A#endif
2N/A char tmp[40];
2N/A
2N/A errnum = num; /*%< convert to unsigned */
2N/A#ifdef USE_SYSERROR_LIST
2N/A if (errnum < (u_int)sys_nerr)
2N/A return (sys_errlist[errnum]);
2N/A#else
2N/A#undef strerror
2N/A ret = strerror(num); /*%< call strerror() in libc */
2N/A if (ret != NULL)
2N/A return(ret);
2N/A#endif
2N/A
2N/A /* Do this by hand, so we don't include stdio(3). */
2N/A t = tmp;
2N/A do {
2N/A *t++ = "0123456789"[errnum % 10];
2N/A } while (errnum /= 10);
2N/A for (p = ebuf + sizeof(UPREFIX) - 1;;) {
2N/A *p++ = *--t;
2N/A if (t <= tmp)
2N/A break;
2N/A }
2N/A return (ebuf);
2N/A}
2N/A
2N/A#endif /*NEED_STRERROR*/
2N/A
2N/A/*! \file */