URL ENCODE 함수

char *qURLencode(char *str, char *encstr){

        //char encstr[128],

        char buf[2+1];

        int i, j;

        unsigned char c;

        if(str == NULL) return NULL;

        //if((encstr = (char *)malloc((strlen(str) * 3) + 1)) == NULL) return NULL;



        for(i = j = 0; str[i]; i++){



                c = (unsigned char)str[i];

                if (c == ' ') encstr[j++] = '+';

                else if ((c >= '0') && (c <= '9')) encstr[j++] = c;
<br/>                else if ((c >= 'A') && (c <= 'Z')) encstr[j++] = c;
<br/>                else if ((c >= 'a') && (c <= 'z')) encstr[j++] = c;
<br/>                else if ((c == '@') || (c == '.')) encstr[j++] = c;

                else {

                        sprintf(buf, "%02x", c);

                        encstr[j++] = '%';

                        encstr[j++] = buf[0];

                        encstr[j++] = buf[1];

                }

        }

        encstr[j] = '\\0';



        return encstr;

}