//輸入的字符串中含有前后雙引號和H，將它們?nèi)サ?/div>
len = str?strlen(str):0;
for(i=0;i<len-3;i++){
str[i]=str[i+1];
}
str[i]='\0';
len=strlen(str);//the new length
if(len%2==0){//偶數(shù)的話與處理octetstring相同
binstr =(unsigned char *)malloc(len);
char2hex_encode(msg,str,binstr);
binary_string_append_bytes(msg, binstr, len/2);
}else{
//基數(shù)的話先處理前面的偶數(shù)個字符
binstr =(unsigned char *)malloc(len);
//先把最后一個字符保存起來
binvalue = str[i-1];
str[i-1] = '\0';
char2hex_encode(msg,str,binstr);
binary_string_append_bytes(msg, binstr, len/2);
//處理最后一個字節(jié)，不夠的用0填充
len += 1;
if(((binvalue-'0')>=0)&&((binvalue-'9')<=0)) {
binvalue = (binvalue-'0')*16;
} else if(((binvalue-'A')>=0)&&((binvalue-'F')<=0)) {
binvalue = (binvalue-'A'+10)*16;
} else if(((binvalue-'a')>=0)&&((binvalue-'f')<=0)) {
binvalue = (binvalue-'a'+10)*16;
} else {
tci_assert(0, "Wrong hex string: the value should be between 0~9, a~f");
}
binary_string_append_char(msg,binvalue);
}
printf("\n Leave function encode_hexstring() \n");
}