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    /*	$OpenBSD: util.c,v 1.1 2015/11/21 12:37:42 reyk Exp $	*/  | 
    
    
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    /*  | 
    
    
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     * Copyright (c) 2006 - 2015 Reyk Floeter <reyk@openbsd.org>  | 
    
    
    5  | 
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     *  | 
    
    
    6  | 
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     * Permission to use, copy, modify, and distribute this software for any  | 
    
    
    7  | 
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     * purpose with or without fee is hereby granted, provided that the above  | 
    
    
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     * copyright notice and this permission notice appear in all copies.  | 
    
    
    9  | 
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     *  | 
    
    
    10  | 
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     * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES  | 
    
    
    11  | 
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     * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF  | 
    
    
    12  | 
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     * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR  | 
    
    
    13  | 
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     * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES  | 
    
    
    14  | 
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     * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN  | 
    
    
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     * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF  | 
    
    
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     * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  | 
    
    
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     */  | 
    
    
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    19  | 
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    #include <sys/types.h>  | 
    
    
    20  | 
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    #include <sys/socket.h>  | 
    
    
    21  | 
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    #include <sys/time.h>  | 
    
    
    22  | 
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    23  | 
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    #include <stdio.h>  | 
    
    
    24  | 
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    #include <string.h>  | 
    
    
    25  | 
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    #include <time.h>  | 
    
    
    26  | 
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    #include <netdb.h>  | 
    
    
    27  | 
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    #include <ctype.h>  | 
    
    
    28  | 
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    29  | 
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    #include "relayd.h"  | 
    
    
    30  | 
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    31  | 
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    const char *  | 
    
    
    32  | 
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    host_error(enum host_error he)  | 
    
    
    33  | 
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    { | 
    
    
    34  | 
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    	switch (he) { | 
    
    
    35  | 
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    	case HCE_NONE:  | 
    
    
    36  | 
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    		return ("none"); | 
    
    
    37  | 
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    		break;  | 
    
    
    38  | 
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    	case HCE_ABORT:  | 
    
    
    39  | 
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    		return ("aborted"); | 
    
    
    40  | 
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    		break;  | 
    
    
    41  | 
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    	case HCE_INTERVAL_TIMEOUT:  | 
    
    
    42  | 
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    		return ("interval timeout"); | 
    
    
    43  | 
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    		break;  | 
    
    
    44  | 
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    	case HCE_ICMP_OK:  | 
    
    
    45  | 
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    		return ("icmp ok"); | 
    
    
    46  | 
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    		break;  | 
    
    
    47  | 
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    	case HCE_ICMP_READ_TIMEOUT:  | 
    
    
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    		return ("icmp read timeout"); | 
    
    
    49  | 
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    		break;  | 
    
    
    50  | 
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    	case HCE_ICMP_WRITE_TIMEOUT:  | 
    
    
    51  | 
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    		return ("icmp write timeout"); | 
    
    
    52  | 
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    		break;  | 
    
    
    53  | 
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    	case HCE_TCP_SOCKET_ERROR:  | 
    
    
    54  | 
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    		return ("tcp socket error"); | 
    
    
    55  | 
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    		break;  | 
    
    
    56  | 
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    	case HCE_TCP_SOCKET_LIMIT:  | 
    
    
    57  | 
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    		return ("tcp socket limit"); | 
    
    
    58  | 
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    		break;  | 
    
    
    59  | 
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    	case HCE_TCP_SOCKET_OPTION:  | 
    
    
    60  | 
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    		return ("tcp socket option"); | 
    
    
    61  | 
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    		break;  | 
    
    
    62  | 
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    	case HCE_TCP_CONNECT_FAIL:  | 
    
    
    63  | 
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    		return ("tcp connect failed"); | 
    
    
    64  | 
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    		break;  | 
    
    
    65  | 
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    	case HCE_TCP_CONNECT_TIMEOUT:  | 
    
    
    66  | 
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    		return ("tcp connect timeout"); | 
    
    
    67  | 
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    		break;  | 
    
    
    68  | 
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    	case HCE_TCP_CONNECT_OK:  | 
    
    
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    		return ("tcp connect ok"); | 
    
    
    70  | 
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    		break;  | 
    
    
    71  | 
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    	case HCE_TCP_WRITE_TIMEOUT:  | 
    
    
    72  | 
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    		return ("tcp write timeout"); | 
    
    
    73  | 
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    		break;  | 
    
    
    74  | 
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    	case HCE_TCP_WRITE_FAIL:  | 
    
    
    75  | 
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    		return ("tcp write failed"); | 
    
    
    76  | 
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    		break;  | 
    
    
    77  | 
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    	case HCE_TCP_READ_TIMEOUT:  | 
    
    
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    		return ("tcp read timeout"); | 
    
    
    79  | 
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    		break;  | 
    
    
    80  | 
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    	case HCE_TCP_READ_FAIL:  | 
    
    
    81  | 
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    		return ("tcp read failed"); | 
    
    
    82  | 
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    		break;  | 
    
    
    83  | 
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    	case HCE_SCRIPT_OK:  | 
    
    
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    		return ("script ok"); | 
    
    
    85  | 
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    		break;  | 
    
    
    86  | 
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    	case HCE_SCRIPT_FAIL:  | 
    
    
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    		return ("script failed"); | 
    
    
    88  | 
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    		break;  | 
    
    
    89  | 
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    	case HCE_TLS_CONNECT_OK:  | 
    
    
    90  | 
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    		return ("tls connect ok"); | 
    
    
    91  | 
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    		break;  | 
    
    
    92  | 
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    	case HCE_TLS_CONNECT_FAIL:  | 
    
    
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    		return ("tls connect failed"); | 
    
    
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    		break;  | 
    
    
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    	case HCE_TLS_CONNECT_TIMEOUT:  | 
    
    
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    		return ("tls connect timeout"); | 
    
    
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    		break;  | 
    
    
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    	case HCE_TLS_CONNECT_ERROR:  | 
    
    
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    		return ("tls connect error"); | 
    
    
    100  | 
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    		break;  | 
    
    
    101  | 
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    	case HCE_TLS_READ_TIMEOUT:  | 
    
    
    102  | 
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    		return ("tls read timeout"); | 
    
    
    103  | 
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    		break;  | 
    
    
    104  | 
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    	case HCE_TLS_WRITE_TIMEOUT:  | 
    
    
    105  | 
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    		return ("tls write timeout"); | 
    
    
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    		break;  | 
    
    
    107  | 
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    	case HCE_TLS_READ_ERROR:  | 
    
    
    108  | 
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    		return ("tls read error"); | 
    
    
    109  | 
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    		break;  | 
    
    
    110  | 
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    	case HCE_TLS_WRITE_ERROR:  | 
    
    
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    		return ("tls write error"); | 
    
    
    112  | 
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    		break;  | 
    
    
    113  | 
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    	case HCE_SEND_EXPECT_FAIL:  | 
    
    
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    		return ("send/expect failed"); | 
    
    
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    		break;  | 
    
    
    116  | 
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    	case HCE_SEND_EXPECT_OK:  | 
    
    
    117  | 
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    		return ("send/expect ok"); | 
    
    
    118  | 
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    		break;  | 
    
    
    119  | 
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    	case HCE_HTTP_CODE_ERROR:  | 
    
    
    120  | 
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    		return ("http code malformed"); | 
    
    
    121  | 
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    		break;  | 
    
    
    122  | 
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    	case HCE_HTTP_CODE_FAIL:  | 
    
    
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    		return ("http code mismatch"); | 
    
    
    124  | 
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    		break;  | 
    
    
    125  | 
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    	case HCE_HTTP_CODE_OK:  | 
    
    
    126  | 
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    		return ("http code ok"); | 
    
    
    127  | 
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    		break;  | 
    
    
    128  | 
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    	case HCE_HTTP_DIGEST_ERROR:  | 
    
    
    129  | 
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    		return ("http digest malformed"); | 
    
    
    130  | 
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    		break;  | 
    
    
    131  | 
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    	case HCE_HTTP_DIGEST_FAIL:  | 
    
    
    132  | 
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    		return ("http digest mismatch"); | 
    
    
    133  | 
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    		break;  | 
    
    
    134  | 
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    	case HCE_HTTP_DIGEST_OK:  | 
    
    
    135  | 
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    		return ("http digest ok"); | 
    
    
    136  | 
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    		break;  | 
    
    
    137  | 
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    	}  | 
    
    
    138  | 
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    	/* NOTREACHED */  | 
    
    
    139  | 
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    	return ("invalid"); | 
    
    
    140  | 
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    }  | 
    
    
    141  | 
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    142  | 
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    const char *  | 
    
    
    143  | 
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    host_status(enum host_status status)  | 
    
    
    144  | 
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    { | 
    
    
    145  | 
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    	switch (status) { | 
    
    
    146  | 
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    	case HOST_DOWN:  | 
    
    
    147  | 
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    		return ("down"); | 
    
    
    148  | 
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    	case HOST_UNKNOWN:  | 
    
    
    149  | 
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    		return ("unknown"); | 
    
    
    150  | 
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    	case HOST_UP:  | 
    
    
    151  | 
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    		return ("up"); | 
    
    
    152  | 
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    	};  | 
    
    
    153  | 
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    	/* NOTREACHED */  | 
    
    
    154  | 
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    	return ("invalid"); | 
    
    
    155  | 
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    }  | 
    
    
    156  | 
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    157  | 
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    const char *  | 
    
    
    158  | 
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    table_check(enum table_check check)  | 
    
    
    159  | 
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    { | 
    
    
    160  | 
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    	switch (check) { | 
    
    
    161  | 
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    	case CHECK_NOCHECK:  | 
    
    
    162  | 
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    		return ("none"); | 
    
    
    163  | 
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    	case CHECK_ICMP:  | 
    
    
    164  | 
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    		return ("icmp"); | 
    
    
    165  | 
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    	case CHECK_TCP:  | 
    
    
    166  | 
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    		return ("tcp"); | 
    
    
    167  | 
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    	case CHECK_HTTP_CODE:  | 
    
    
    168  | 
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    		return ("http code"); | 
    
    
    169  | 
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    	case CHECK_HTTP_DIGEST:  | 
    
    
    170  | 
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    		return ("http digest"); | 
    
    
    171  | 
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    	case CHECK_SEND_EXPECT:  | 
    
    
    172  | 
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    		return ("send expect"); | 
    
    
    173  | 
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    	case CHECK_SCRIPT:  | 
    
    
    174  | 
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    		return ("script"); | 
    
    
    175  | 
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    	};  | 
    
    
    176  | 
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    	/* NOTREACHED */  | 
    
    
    177  | 
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    	return ("invalid"); | 
    
    
    178  | 
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    }  | 
    
    
    179  | 
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    180  | 
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    const char *  | 
    
    
    181  | 
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    print_availability(u_long cnt, u_long up)  | 
    
    
    182  | 
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    { | 
    
    
    183  | 
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    	static char buf[BUFSIZ];  | 
    
    
    184  | 
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    185  | 
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    	if (cnt == 0)  | 
    
    
    186  | 
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    		return (""); | 
    
    
    187  | 
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    	bzero(buf, sizeof(buf));  | 
    
    
    188  | 
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    	snprintf(buf, sizeof(buf), "%.2f%%", (double)up / cnt * 100);  | 
    
    
    189  | 
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    	return (buf);  | 
    
    
    190  | 
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    }  | 
    
    
    191  | 
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    192  | 
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    const char *  | 
    
    
    193  | 
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    print_host(struct sockaddr_storage *ss, char *buf, size_t len)  | 
    
    
    194  | 
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    { | 
    
    
    195  | 
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    	if (getnameinfo((struct sockaddr *)ss, ss->ss_len,  | 
    
    
    196  | 
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    	    buf, len, NULL, 0, NI_NUMERICHOST) != 0) { | 
    
    
    197  | 
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    		buf[0] = '\0';  | 
    
    
    198  | 
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    		return (NULL);  | 
    
    
    199  | 
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    	}  | 
    
    
    200  | 
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    	return (buf);  | 
    
    
    201  | 
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    }  | 
    
    
    202  | 
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    203  | 
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    const char *  | 
    
    
    204  | 
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    print_time(struct timeval *a, struct timeval *b, char *buf, size_t len)  | 
    
    
    205  | 
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    { | 
    
    
    206  | 
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    	struct timeval		tv;  | 
    
    
    207  | 
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    	u_long			h, sec, min;  | 
    
    
    208  | 
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    209  | 
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    	timerclear(&tv);  | 
    
    
    210  | 
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    	timersub(a, b, &tv);  | 
    
    
    211  | 
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    	sec = tv.tv_sec % 60;  | 
    
    
    212  | 
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    	min = tv.tv_sec / 60 % 60;  | 
    
    
    213  | 
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    	h = tv.tv_sec / 60 / 60;  | 
    
    
    214  | 
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    215  | 
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    	snprintf(buf, len, "%.2lu:%.2lu:%.2lu", h, min, sec);  | 
    
    
    216  | 
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    	return (buf);  | 
    
    
    217  | 
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    }  | 
    
    
    218  | 
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    219  | 
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    const char *  | 
    
    
    220  | 
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    printb_flags(const u_int32_t v, const char *bits)  | 
    
    
    221  | 
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    { | 
    
    
    222  | 
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    	static char	 buf[2][BUFSIZ];  | 
    
    
    223  | 
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    	static int	 idx = 0;  | 
    
    
    224  | 
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    	int		 i, any = 0;  | 
    
    
    225  | 
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    	char		 c, *p, *r;  | 
    
    
    226  | 
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    227  | 
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    	p = r = buf[++idx % 2];  | 
    
    
    228  | 
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    	bzero(p, BUFSIZ);  | 
    
    
    229  | 
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    230  | 
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    	if (bits) { | 
    
    
    231  | 
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    		bits++;  | 
    
    
    232  | 
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    		while ((i = *bits++)) { | 
    
    
    233  | 
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    			if (v & (1 << (i - 1))) { | 
    
    
    234  | 
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    				if (any) { | 
    
    
    235  | 
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    					*p++ = ',';  | 
    
    
    236  | 
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    					*p++ = ' ';  | 
    
    
    237  | 
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    				}  | 
    
    
    238  | 
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    				any = 1;  | 
    
    
    239  | 
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    				for (; (c = *bits) > 32; bits++) { | 
    
    
    240  | 
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    					if (c == '_')  | 
    
    
    241  | 
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    						*p++ = ' ';  | 
    
    
    242  | 
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    					else  | 
    
    
    243  | 
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    						*p++ = tolower((u_char)c);  | 
    
    
    244  | 
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    				}  | 
    
    
    245  | 
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    			} else  | 
    
    
    246  | 
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    				for (; *bits > 32; bits++)  | 
    
    
    247  | 
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    					;  | 
    
    
    248  | 
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    		}  | 
    
    
    249  | 
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    	}  | 
    
    
    250  | 
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    251  | 
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    	return (r);  | 
    
    
    252  | 
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    }  | 
    
    
    253  | 
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    254  | 
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    void  | 
    
    
    255  | 
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    getmonotime(struct timeval *tv)  | 
    
    
    256  | 
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    { | 
    
    
    257  | 
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    	struct timespec	 ts;  | 
    
    
    258  | 
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    259  | 
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    	if (clock_gettime(CLOCK_MONOTONIC, &ts))  | 
    
    
    260  | 
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    		fatal("clock_gettime"); | 
    
    
    261  | 
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    262  | 
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    	TIMESPEC_TO_TIMEVAL(tv, &ts);  | 
    
    
    263  | 
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    }  |