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4709 | mejdrech | 1 | /* |
2 | * Copyright (c) 2009 Lukas Mejdrech |
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3 | * All rights reserved. |
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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_app |
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30 | * @{ |
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31 | */ |
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32 | |||
33 | /** @file |
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34 | * Generic application parsing functions implementation. |
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35 | */ |
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36 | |||
37 | #include <stdio.h> |
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38 | #include <string.h> |
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39 | |||
40 | #include "../err.h" |
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41 | |||
42 | #include "parse.h" |
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43 | |||
44 | int parse_parameter_int( int argc, char ** argv, int * index, int * value, const char * name, int offset ){ |
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45 | char * rest; |
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46 | |||
47 | if( offset ){ |
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48 | * value = strtol( argv[ * index ] + offset, & rest, 10 ); |
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49 | }else if(( * index ) + 1 < argc ){ |
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50 | ++ ( * index ); |
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51 | * value = strtol( argv[ * index ], & rest, 10 ); |
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52 | }else{ |
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53 | fprintf( stderr, "Command line error: missing %s\n", name ); |
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54 | return EINVAL; |
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55 | } |
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56 | if( rest && ( * rest )){ |
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57 | fprintf( stderr, "Command line error: %s unrecognized (%d: %s)\n", name, * index, argv[ * index ] ); |
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58 | return EINVAL; |
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59 | } |
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60 | return EOK; |
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61 | } |
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62 | |||
63 | int parse_parameter_string( int argc, char ** argv, int * index, char ** value, const char * name, int offset ){ |
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64 | if( offset ){ |
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65 | * value = argv[ * index ] + offset; |
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66 | }else if(( * index ) + 1 < argc ){ |
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67 | ++ ( * index ); |
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68 | * value = argv[ * index ]; |
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69 | }else{ |
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70 | fprintf( stderr, "Command line error: missing %s\n", name ); |
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71 | return EINVAL; |
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72 | } |
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73 | return EOK; |
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74 | } |
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75 | |||
76 | int parse_parameter_name_int( int argc, char ** argv, int * index, int * value, const char * name, int offset, int ( * parse_value )( const char * value )){ |
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77 | ERROR_DECLARE; |
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78 | |||
79 | char * parameter; |
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80 | |||
81 | ERROR_PROPAGATE( parse_parameter_string( argc, argv, index, & parameter, name, offset )); |
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82 | * value = ( * parse_value )( parameter ); |
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83 | if(( * value ) == ENOENT ){ |
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84 | fprintf( stderr, "Command line error: unrecognized %s value (%d: %s)\n", name, * index, parameter ); |
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85 | return ENOENT; |
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86 | } |
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87 | return EOK; |
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88 | } |
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89 | |||
90 | void print_unrecognized( int index, const char * parameter ){ |
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91 | fprintf( stderr, "Command line error - unrecognized parameter (%d: %s)\n", index, parameter ); |
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92 | } |
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93 | |||
94 | /** @} |
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95 | */ |