herror.c

sock5 src app代理软件放心使用

/*
 * 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 <stdio.h>

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