/*
* Copyright (c) 2009 Lukas Mejdrech
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup net_app
* @{
*/
/** @file
* Generic application parsing functions implementation.
*/
#include <stdio.h>
#include <string.h>
#include "../err.h"
#include "parse.h"
int parse_parameter_int( int argc, char ** argv, int * index, int * value, const char * name, int offset ){
char * rest;
if( offset ){
* value
= strtol( argv
[ * index
] + offset
, & rest
, 10 );
}else if(( * index ) + 1 < argc ){
++ ( * index );
* value
= strtol( argv
[ * index
], & rest
, 10 );
}else{
fprintf( stderr
, "Command line error: missing %s\n", name
);
return EINVAL;
}
if( rest && ( * rest )){
fprintf( stderr
, "Command line error: %s unrecognized (%d: %s)\n", name
, * index
, argv
[ * index
] );
return EINVAL;
}
return EOK;
}
int parse_parameter_string( int argc, char ** argv, int * index, char ** value, const char * name, int offset ){
if( offset ){
* value = argv[ * index ] + offset;
}else if(( * index ) + 1 < argc ){
++ ( * index );
* value = argv[ * index ];
}else{
fprintf( stderr
, "Command line error: missing %s\n", name
);
return EINVAL;
}
return EOK;
}
int parse_parameter_name_int( int argc, char ** argv, int * index, int * value, const char * name, int offset, int ( * parse_value )( const char * value )){
ERROR_DECLARE;
char * parameter;
ERROR_PROPAGATE( parse_parameter_string( argc, argv, index, & parameter, name, offset ));
* value = ( * parse_value )( parameter );
if(( * value ) == ENOENT ){
fprintf( stderr
, "Command line error: unrecognized %s value (%d: %s)\n", name
, * index
, parameter
);
return ENOENT;
}
return EOK;
}
void print_unrecognized( int index, const char * parameter ){
fprintf( stderr
, "Command line error - unrecognized parameter (%d: %s)\n", index
, parameter
);
}
/** @}
*/