Subversion Repositories HelenOS

Rev

Rev 4559 | Rev 4582 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
3846 mejdrech 1 
/*
3912 mejdrech 2 
 * Copyright (c) 2009 Lukas Mejdrech
3846 mejdrech 3 
 * All rights reserved.
4 
 *
5 
 * Redistribution and use in source and binary forms, with or without
6 
 * modification, are permitted provided that the following conditions
7 
 * are met:
8 
 *
9 
 * - Redistributions of source code must retain the above copyright
10 
 *   notice, this list of conditions and the following disclaimer.
11 
 * - Redistributions in binary form must reproduce the above copyright
12 
 *   notice, this list of conditions and the following disclaimer in the
13 
 *   documentation and/or other materials provided with the distribution.
14 
 * - The name of the author may not be used to endorse or promote products
15 
 *   derived from this software without specific prior written permission.
16 
 *
17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
 */
28 
 
29 
/** @addtogroup net
30 
 *  @{
31 
 */
32 
 
33 
/** @file
4350 mejdrech 34 
 *  Internet protocol address conversion functions implementation.
3846 mejdrech 35 
 */
36 
 
4261 mejdrech 37 
#include <errno.h>
4192 mejdrech 38 
#include <mem.h>
3846 mejdrech 39 
#include <stdio.h>
40 
 
4578 mejdrech 41 
#include "include/in.h"
42 
#include "include/in6.h"
4559 mejdrech 43 
#include "include/inet.h"
3846 mejdrech 44 
#include "include/socket.h"
45 
 
46 
int inet_pton( uint16_t family, const char * address, uint8_t * data ){
47 
    const char *    next;
48 
    char *          last;
49 
    int             index;
50 
    int             count;
51 
    int             base;
52 
    size_t          bytes;
53 
    size_t          shift;
54 
    unsigned long   value;
55 
 
56 
    if( ! data ) return EINVAL;
57 
    switch( family ){
58 
        case AF_INET:
59 
            count = 4;
60 
            base = 10;
61 
            bytes = 1;
62 
            break;
63 
        case AF_INET6:
64 
            count = 16;
65 
            base = 16;
66 
            bytes = 4;
67 
            break;
68 
        default:
69 
            return ENOTSUP;
70 
    }
71 
    if( ! address ){
4192 mejdrech 72 
        bzero( data, count );
3846 mejdrech 73 
        return ENOENT;
74 
    }
75 
    next = address;
76 
    index = 0;
77 
    do{
78 
        if( next && ( * next )){
79 
            if( index ) ++ next;
80 
            value = strtoul( next, & last, base );
81 
            next = last;
82 
            shift = bytes - 1;
83 
            do{
84 
                // like little endian
85 
                data[ index + shift ] = value;
86 
                value >>= 8;
87 
            }while( shift -- );
88 
            index += bytes;
89 
        }else{
4192 mejdrech 90 
            bzero( data + index, count - index );
3846 mejdrech 91 
            return EOK;
92 
        }
93 
    }while( index < count );
94 
    return EOK;
95 
}
96 
 
97 
int inet_ntop( uint16_t family, const uint8_t * data, char * address, size_t length ){
98 
    if(( ! data ) || ( ! address )) return EINVAL;
99 
    switch( family ){
100 
        case AF_INET:   if( length < INET_ADDRSTRLEN ) return ENOMEM;
4243 mejdrech 101 
                        snprintf( address, length, "%hhu.%hhu.%hhu.%hhu", data[ 0 ], data[ 1 ], data[ 2 ], data[ 3 ] );
3846 mejdrech 102 
                        return EOK;
103 
        case AF_INET6:  if( length < INET6_ADDRSTRLEN ) return ENOMEM;
4243 mejdrech 104 
                        snprintf( address, length, "%hhx%hhx:%hhx%hhx:%hhx%hhx:%hhx%hhx:%hhx%hhx:%hhx%hhx:%hhx%hhx:%hhx%hhx", data[ 0 ], data[ 1 ], data[ 2 ], data[ 3 ], data[ 4 ], data[ 5 ], data[ 6 ], data[ 7 ], data[ 8 ], data[ 9 ], data[ 10 ], data[ 11 ], data[ 12 ], data[ 13 ], data[ 14 ], data[ 15 ] );
3846 mejdrech 105 
                        return EOK;
106 
        default:        return ENOTSUP;
107 
    }
108 
}
109 
 
110 
/** @}
111 
 */