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