91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
/*
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This file is part of libcapwap.
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libcapwap is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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libcapwap is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file
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* @brief bstr_create_from_cfgstr function
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "bstr.h"
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/**
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* Create a bstr_t string from a string read from config file.
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*
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* @param s String from config file.
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* @return The create bstr_t string.
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*
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* The string from config file is an ASCII-text which is interpreted
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* as hexadecimal string if it starts with ".x"
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*
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* @see bstr_t
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*/
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uint8_t * bstr_create_from_cfgstr(const char * s)
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{
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int l = strlen(s);
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if (s[0]!='.')
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return bstr_create((uint8_t*)s,l);
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if (l<=2)
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return bstr_create((uint8_t*)s,l);
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if (s[1]=='.')
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return bstr_create((uint8_t*)s+1,l-1);
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if (s[1]=='x'){
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uint8_t * ns=0;
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int len=0;
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int ch,cl;
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const char *ss = s+2;
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int rc ;
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do {
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rc = sscanf(ss,"%01X",&ch);
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if (rc!=1)
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break;
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ss++;
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rc = sscanf(ss,"%01X",&cl);
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if (rc!=1)
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cl=0;
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ss++;
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int c=(ch<<4) | cl;
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len++;
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ns = realloc(ns,len);
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ns[len-1]=c;
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}while (rc==1);
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return bstr_create(ns,len);
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}
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return NULL;
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}
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