1.真是好久不写代码了，一个memcpy也能写错。。。
编译后告警：warning: passing arg 2 of `memcpy' makes pointer from integer without a cast
原来写的是 memcpy(ess->keys.sres[chalno], simoutbuf[0], 4*sizeof(unsigned char));
memcpy(ess->keys.Kc[chalno], simoutbuf[4], 8*sizeof(unsigned char));
这当然出错啊，第二个不是地址了，是数了。数组名是地址，而simoutbuf[0]这个就是数了，要&simoutbuf[0]才行。。。
所以memcpy(ess->keys.sres[chalno], &simoutbuf[0], 4*sizeof(unsigned char));
memcpy(ess->keys.Kc[chalno], &simoutbuf[4], 8*sizeof(unsigned char));
哎。。悲剧啊。。
2.#define PW_GROUP_ID ((VENDORPEC_CAP*** << 16) | 28)
这种定义的用意，有通用ID 和厂商ID，这里面VENDORPEC_CAP***就是厂商ID ，左移16位加上后面的，28代表厂商内部ID
所以这就构成了一个唯一的ID
3.Called_Id被叫号码
clrid主叫号码
4
if( (pair = pairfind(request->packet->vps, PW_CALLING_STATION_ID) ) != NULL && pair->length > 0) {
user_type = USERTYPE_CALLERID;// what're USERTYPE_CALLERID PW_CALLING_STATION_ID ??
strNcpy(clrid, pair->strvalue, MAXSTRLEN);
}
/*
* Fall through, which means user_name would be user identifier if USER_NAME
* attribute is present, no matter caller_id is present or not.
*/
memset(username, 0x0, MAXSTRLEN);
if ( (pair = pairfind(request->packet->vps, PW_USER_NAME) ) != NULL && pair->length > 0) {
user_type = USERTYPE_USERNAME;
strNcpy(username, pair->strvalue, MAXSTRLEN);
}
就是说如果没有PW_CALLING_STATION_ID，那么user_type就是下面的USERTYPE_USERNAME
如果两个都有的话，USERTYPE_USERNAME这个优先的意思