/*?License:?Apache?v2?*/
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?

int?main（int?argc?char?*argv[]）
{
??int?addrlen;
??int?read_bytes?=?0;
??u_int?opt?=?1;
??int?fd?i;
??struct?sockaddr_in?local_addr;
??struct?sockaddr_in?remote_addr;
??struct?ip_mreq?req;
??char?req_msg[]?=?{
????‘@‘?0x02?0x00?0x00?0xb4?‘G‘?‘P‘?‘I‘?‘O‘?0x02?‘2‘?‘5‘
????0x08?‘f‘?‘u‘?‘n‘?‘c‘?‘t‘?‘i‘?‘o‘?‘n‘?0x03?‘o‘?‘u‘?
????‘t‘?0xff
??};
??char?res_msg[128];

??fd?=?socket（AF_INET?SOCK_DGRAM?0）;
??if?（fd?????perror（“socket“）;
????exit（1）;
??}

??setsockopt（fd?SOL_SOCKET?SO_REUSEADDR?&opt?sizeof（opt））;
??
??memset（&local_addr?0x00?sizeof（local_addr））;
??memset（&remote_addr?0x00?sizeof（remote_addr））;
??memset（&req?0x00?sizeof（req））;
??memset（res_msg?0x00?sizeof（res_msg））;

??local_addr.sin_family?=?AF_INET;
??local_addr.sin_addr.s_addr?=?htonl（INADDR_ANY）;
??local_addr.sin_port?=?htons（0）;

??if?（bind（fd?（struct?sockaddr?*）&local_addr?sizeof（local_addr））?????perror（“bind“）;
????close（fd）;
????exit（1）;
??}

??remote_addr.sin_family?=?AF_INET;
??remote_addr.sin_addr.s_addr?=?inet_addr（“224.0.1.123“）;
??remote_addr.sin_port?=?htons（5683）;
??
??sendto（fd?req_msg?sizeof（req_msg）?0?
	?（struct?sockaddr?*）&remote_addr?sizeof（remote_addr））;
??fprintf（stdout?“Sent?a?message.\n“）;

??addrlen?=?sizeof（remote_addr）;
??read_bytes?=?recvfrom（fd?res_msg?sizeof（res_msg）?0
			（struct?sockaddr?*）&remote_addr?&addrlen）;

??if?（read_bytes?>?0）?{
????printf（“Received?response?message?from?server:\n[“）;
????for?（i?=?0;?i???????printf（“%02x?“?（uint8_t）（res_msg[i]?&?0xFF））;
????}
????printf（“]\n“）;
??}

??close（fd）;

??return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-10-01?01:18??rpi3-webiopi\
?????文件??????????57??2017-10-01?01:18??rpi3-webiopi\.gitignore
?????目錄???????????0??2017-11-03?21:22??__MACOSX\
?????目錄???????????0??2017-11-03?21:22??__MACOSX\rpi3-webiopi\
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\._.gitignore
?????目錄???????????0??2017-10-01?01:18??rpi3-webiopi\dev\
?????文件????????1648??2017-10-01?01:18??rpi3-webiopi\dev\01_setup-required-packages.sh
?????目錄???????????0??2017-11-03?21:22??__MACOSX\rpi3-webiopi\dev\
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\._01_setup-required-packages.sh
?????文件??????????79??2017-10-01?01:18??rpi3-webiopi\dev\02_doublebind_patch.sh
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\._02_doublebind_patch.sh
?????文件?????????119??2017-10-01?01:18??rpi3-webiopi\dev\03_install_python_dev.sh
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\._03_install_python_dev.sh
?????文件????????1079??2017-10-01?01:18??rpi3-webiopi\dev\10_make_deb.sh
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\._10_make_deb.sh
?????目錄???????????0??2017-10-01?01:18??rpi3-webiopi\dev\debian_jessie\
?????文件????????4944??2017-10-01?01:18??rpi3-webiopi\dev\debian_jessie\changelog
?????目錄???????????0??2017-11-03?21:22??__MACOSX\rpi3-webiopi\dev\debian_jessie\
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\debian_jessie\._changelog
?????文件???????????2??2017-10-01?01:18??rpi3-webiopi\dev\debian_jessie\compat
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\debian_jessie\._compat
?????文件?????????920??2017-10-01?01:18??rpi3-webiopi\dev\debian_jessie\control
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\debian_jessie\._control
?????文件????????3435??2017-10-01?01:18??rpi3-webiopi\dev\debian_jessie\copyright
?????文件?????????212??2017-10-01?01:18??__MACOSX\rpi3-webiopi\dev\debian_jessie\._copyright
?????目錄???????????0??2017-10-01?01:18??rpi3-webiopi\dev\debian_jessie\insfiles\
?????目錄???????????0??2017-10-01?01:18??rpi3-webiopi\dev\debian_jessie\insfiles\etc\
?????目錄???????????0??2017-11-03?21:19??rpi3-webiopi\dev\debian_jessie\insfiles\etc\init.d\
?????文件??????????51??2017-11-03?21:19??rpi3-webiopi\dev\debian_jessie\insfiles\etc\init.d\webiopi
?????目錄???????????0??2017-11-03?21:22??__MACOSX\rpi3-webiopi\dev\debian_jessie\insfiles\
?????目錄???????????0??2017-11-03?21:22??__MACOSX\rpi3-webiopi\dev\debian_jessie\insfiles\etc\
............此處省略649個文件信息