michael@0: /*
michael@0:  * Copyright (c) 1988, 1993
michael@0:  *	The Regents of the University of California.  All rights reserved.
michael@0:  *
michael@0:  * Redistribution and use in source and binary forms, with or without
michael@0:  * modification, are permitted provided that the following conditions
michael@0:  * are met:
michael@0:  * 1. Redistributions of source code must retain the above copyright
michael@0:  *    notice, this list of conditions and the following disclaimer.
michael@0:  * 2. Redistributions in binary form must reproduce the above copyright
michael@0:  *    notice, this list of conditions and the following disclaimer in the
michael@0:  *    documentation and/or other materials provided with the distribution.
michael@0:  * 3. ***REMOVED*** - see 
michael@0:  *    ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
michael@0:  * 4. Neither the name of the University nor the names of its contributors
michael@0:  *    may be used to endorse or promote products derived from this software
michael@0:  *    without specific prior written permission.
michael@0:  *
michael@0:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
michael@0:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
michael@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
michael@0:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
michael@0:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
michael@0:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
michael@0:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
michael@0:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
michael@0:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
michael@0:  * SUCH DAMAGE.
michael@0:  */
michael@0: 
michael@0: #if defined(LIBC_SCCS) && !defined(lint)
michael@0: static char sccsid[] = "@(#)strerror.c	8.1 (Berkeley) 6/4/93";
michael@0: #endif /* LIBC_SCCS and not lint */
michael@0: 
michael@0: #include <string.h>
michael@0: 
michael@0: #ifdef _DLL
michael@0: #define sys_nerr    (*_sys_nerr_dll)
michael@0: #endif
michael@0: 
michael@0: #ifndef HAVE_STRERROR
michael@0: #ifndef _AFXDLL
michael@0: char *
michael@0: strerror(num)
michael@0: 	int num;
michael@0: {
michael@0: 	extern int sys_nerr;
michael@0: 	extern char *sys_errlist[];
michael@0: #define	UPREFIX	"Unknown error: "
michael@0: 	static char ebuf[40] = UPREFIX;		/* 64-bit number + slop */
michael@0: 	register unsigned int errnum;
michael@0: 	register char *p, *t;
michael@0: 	char tmp[40];
michael@0: 
michael@0: 	errnum = num;				/* convert to unsigned */
michael@0: 	if (errnum < sys_nerr)
michael@0: 		return(sys_errlist[errnum]);
michael@0: 
michael@0: 	/* Do this by hand, so we don't include stdio(3). */
michael@0: 	t = tmp;
michael@0: 	do {
michael@0: 		*t++ = "0123456789"[errnum % 10];
michael@0: 	} while (errnum /= 10);
michael@0: 	for (p = ebuf + sizeof(UPREFIX) - 1;;) {
michael@0: 		*p++ = *--t;
michael@0: 		if (t <= tmp)
michael@0: 			break;
michael@0: 	}
michael@0: 	return(ebuf);
michael@0: }
michael@0: 
michael@0: #endif
michael@0: #endif /* !HAVE_STRERROR */