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28 lines
618 B
C
28 lines
618 B
C
#include "socket.h"
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#ifdef __MINGW32__
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#include <windows.h>
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#else
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#endif
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#include <errno.h>
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ssize_t socket_fastopen_connect4(int s,const char* ip,uint16 port,const char* buf,size_t len) {
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int r;
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#ifndef MSG_FASTOPEN
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{
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#else
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if (len)
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r=socket_send4_flag(s,buf,len,ip,port,MSG_FASTOPEN);
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else
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r=socket_connect4(s,ip,port);
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if (r==-1 && (errno==ENOTCONN || errno==EPIPE)) {
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#endif
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/* apparently the kernel does not support TCP fast open */
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r=socket_connect4(s,ip,port);
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if (r==0) return write(s,buf,len);
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}
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return r;
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}
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