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19 lines
458 B
C
19 lines
458 B
C
#include <sys/types.h>
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#include <sys/param.h>
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#ifndef __MINGW32__
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#include <sys/socket.h>
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#include <netinet/in.h>
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#endif
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#include "windoze.h"
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#include "socket.h"
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#include "byte.h"
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int socket_mcjoin4(int s,const char ip[4],const char _interface[4])
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{
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struct ip_mreq opt;
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byte_copy(&opt.imr_multiaddr.s_addr,4,ip);
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byte_copy(&opt.imr_interface.s_addr,4,_interface);
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return winsock2errno(setsockopt(s,IPPROTO_IP,IP_ADD_MEMBERSHIP,&opt,sizeof opt));
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}
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