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  1. /*
  2.  * Copyright (c) 2009 Lukas 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_app
  30.  *  @{
  31.  */
  32.  
  33. /** @file
  34.  *  Generic application parsing functions.
  35.  */
  36.  
  37. #ifndef __NET_APP_PARSE__
  38. #define __NET_APP_PARSE__
  39.  
  40. /** Prints the parameter unrecognized message and the application help.
  41.  *  @param index The index of the parameter. Input parameter.
  42.  *  @param parameter The parameter name. Input parameter.
  43.  */
  44. void    print_unrecognized( int index, const char * parameter );
  45.  
  46. /** Parses the next parameter as an integral number.
  47.  *  Uses the offseted actual parameter if the offset is set or the next one if not.
  48.  *  @param argc The total number of the parameters. Input parameter.
  49.  *  @param argv The parameters. Input parameter.
  50.  *  @param index The actual parameter index. Input/output parameter.
  51.  *  @param value The parsed parameter value. Output parameter.
  52.  *  @param name The parameter name to be printed on errors. Input parameter.
  53.  *  @param offset The value offset in the actual parameter. If not set, the next parameter is parsed instead. Input parameter.
  54.  *  @returns EOK on success.
  55.  *  @returns EINVAL if the parameter is missing.
  56.  *  @returns EINVAL if the parameter is in wrong format.
  57.  */
  58. int parse_parameter_int( int argc, char ** argv, int * index, int * value, const char * name, int offset );
  59.  
  60. /** Parses the next parameter as a character string.
  61.  *  Uses the offseted actual parameter if the offset is set or the next one if not.
  62.  *  @param argc The total number of the parameters. Input parameter.
  63.  *  @param argv The parameters. Input parameter.
  64.  *  @param index The actual parameter index. Input/output parameter.
  65.  *  @param value The parsed parameter value. Output parameter.
  66.  *  @param name The parameter name to be printed on errors. Input parameter.
  67.  *  @param offset The value offset in the actual parameter. If not set, the next parameter is parsed instead. Input parameter.
  68.  *  @returns EOK on success.
  69.  *  @returns EINVAL if the parameter is missing.
  70.  */
  71. int parse_parameter_string( int argc, char ** argv, int * index, char ** value, const char * name, int offset );
  72.  
  73. /** Parses the next named parameter as an integral number.
  74.  *  Uses the offseted actual parameter if the offset is set or the next one if not.
  75.  *  Translates the parameter using the parse_value function.
  76.  *  @param argc The total number of the parameters. Input parameter.
  77.  *  @param argv The parameters. Input parameter.
  78.  *  @param index The actual parameter index. Input/output parameter.
  79.  *  @param value The parsed parameter value. Output parameter.
  80.  *  @param name The parameter name to be printed on errors. Input parameter.
  81.  *  @param offset The value offset in the actual parameter. If not set, the next parameter is parsed instead. Input parameter.
  82.  *  @param parse_value The translation function to parse the named value.
  83.  *  @returns EOK on success.
  84.  *  @returns EINVAL if the parameter is missing.
  85.  *  @returns ENOENT if the parameter name has not been found.
  86.  */
  87. int parse_parameter_name_int( int argc, char ** argv, int * index, int * value, const char * name, int offset, int ( * parse_value )( const char * value ));
  88.  
  89. #endif
  90.  
  91. /** @}
  92.  */
  93.