#if defined(LIBC_SCCS) && !defined(lint) static const char sccsid[] = "@(#)strerror.c 8.1 (Berkeley) 6/4/93"; static const char rcsid[] = "$Id: strerror.c,v 1.1.1.1 2001/05/17 22:48:45 itojun Exp $"; #endif /* LIBC_SCCS and not lint */ /* * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 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. */ #include "port_before.h" #include #include #include #include "port_after.h" extern int sys_nerr; extern char *sys_errlist[]; #ifndef NEED_STRERROR int __strerror_unneeded__; #else const char * strerror(int num) { #define UPREFIX "Unknown error: " static char ebuf[40] = UPREFIX; /* 64-bit number + slop */ u_int errnum; 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 /*NEED_STRERROR*/