#include <iostream>
using namespace std;

enum InnerMsgID
{
 INNER_MSG_ID_BACKWARD_INFO = 1, ///< 表示后台下发配置的变更
 INNER_MSG_ID_STATIS_INFO = 2, ///< 表示主进程发送消息给子进程,获取统计信息
 INNER_MSG_ID_REOPEN_LOG_FILE = 3 ///< 日志切割
};

enum MsgDirection
{
 INNER_MSG_DIRECTION_UNDEFINED = 0,
 INNER_MSG_DIRECTION_MASTER_TO_CHILD = 1, ///< 主进程到子进程
 INNER_MSG_DIRECTION_CHILD_TO_MASTER = 2 ///< 子进程到主进程
};

typedef struct InnerMsgHead
{
 InnerMsgID msgid; ///< 消息ID
 MsgDirection direction; ///< 消息方向
 char uuid[37]; ///< UUID
 int processidx; ///< 进程索引号
 int datalen; ///< 数据长度, 从 data 开始
 char data[0];
}InnerMsgHead;

char* memstr(const char* str1, int n1, const char* str2, int n2)
{
	if (n1 < n2)
	{
		return NULL;
	}

	int i = 0;
	int j = 0;

	char* s1 = NULL;
	char* s2 = NULL;
	char* cp = (char*)str1;

	for (; i < n1; i++)
	{
		s1 = cp;
		s2 = (char*)str2;

		while (*s1 == *s2)
		{
			s1++;
			s2++;
			j++;

			if (j == n2)
			{
				return cp;
			}
		}

		cp++;
		j = 0;
	}

	return NULL;
}
int main()
{
 const char* cstr = "POST /emm-core/securityController/validateIdentityReturnInfoV1.json HTTP/1.1\r\n"\
 "Content-Type: application/x-www-form-urlencoded\r\n"\
 "Cookie: JSESSIONID=6cae8782-b38c-4951-a95a-364dd44a9a45\r\n"\
 "Host: 127.0.0.1:8080\r\n\r\n"\
 "&strusername=yl2&tokenId=5fe7-4ca6e0f6871db303e53-&loginname=yl2&uidmobiledevid=5724afa6f31d8db40958b081bdd1fa2e";
	const char* cstr_end = cstr + strlen(cstr);
	char* jessonid = memstr(cstr, strlen(cstr), "JSESSIONID=", strlen("JSESSIONID="));
	char* jessonstart = jessonid + strlen("JSESSIONID=");
	char* jessonend = NULL;

	for (jessonend = jessonid + strlen("JSESSIONID="); jessonend < cstr_end; ++jessonend)
	{
		if (*jessonend == '\r')
			break;
	}

	char session[60] = {0};
	int len = jessonend - jessonstart;
	memcpy(session, jessonstart, len);
	cout << "len:" << len<<endl;
	cout << "session:"<<session << endl;

 //cout << str << endl;
 //cout << sizeof(InnerMsgHead) << endl;
	//cout << "Hello World." << endl;
	return 0;
}