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24 lines
560 B
C
24 lines
560 B
C
#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <errno.h>
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#include "socket.h"
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#include "byte.h"
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long long socket_recv(int fd,unsigned char *x,long long xlen,unsigned char *ip,unsigned char *port)
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{
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struct sockaddr_in sa;
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socklen_t salen;
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int r;
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if (xlen < 0) { errno = EPROTO; return -1; }
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if (xlen > 1048576) xlen = 1048576;
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byte_zero(&sa,sizeof sa);
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salen = sizeof sa;
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r = recvfrom(fd,x,xlen,0,(struct sockaddr *) &sa,&salen);
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byte_copy(ip,4,&sa.sin_addr);
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byte_copy(port,2,&sa.sin_port);
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return r;
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}
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