www.pudn.com > socks5.zip > herror.c

/* 
 * 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. 
 */ 
 
#ifdef SHOW_SCCSIDS 
static char sccsid[] = "@(#)herror.c	8.1 (Berkeley) 6/4/93"; 
#endif 
 
#include "config.h" 
 
#ifndef HAVE_HERROR 
#include  
 
const char *h_errlist[] = { 
    "Error 0", 
    "Unknown host",			/* 1 HOST_NOT_FOUND */ 
    "Host name lookup failure",		/* 2 TRY_AGAIN */ 
    "Unknown server error",		/* 3 NO_RECOVERY */ 
    "No address associated with name",	/* 4 NO_ADDRESS */ 
}; 
 
int h_nerr = { sizeof(h_errlist)/sizeof(h_errlist[0]) }; 
int h_errno; 
 
/* 
 * herror -- 
 *	print the error indicated by the h_errno value. 
 */ 
void herror(const char *s) { 
    if (s && *s) { 
	fprintf(stderr, "%s: ", s); 
    } 
 
    if ((h_errno < 0) || (h_errno >= h_nerr)) { 
	fprintf(stderr, "Unknown error\n"); 
    } else if (h_errno == 0) { 
#ifdef sun 
	fprintf(stderr, "Host unknown\n"); 
#endif 
    } else { 
	fprintf(stderr, "%s\n", h_errlist[h_errno]); 
    } 
} 
#endif