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43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
24 years ago
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include "byte.h"
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#include "socket.h"
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#include "ip6.h"
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#include "haveip6.h"
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#include "error.h"
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int socket_recv6(int s,char *buf,unsigned int len,char ip[16],uint16 *port,uint32 *scope_id)
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{
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#ifdef LIBC_HAS_IP6
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struct sockaddr_in6 si;
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#else
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struct sockaddr_in si;
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#endif
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unsigned int Len = sizeof si;
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int r;
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byte_zero(&si,Len);
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if ((r = recvfrom(s,buf,len,0,(struct sockaddr *) &si,&Len))<0) return -1;
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#ifdef LIBC_HAS_IP6
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if (noipv6) {
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struct sockaddr_in *si4=(struct sockaddr_in *)&si;
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byte_copy(ip,12,V4mappedprefix);
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byte_copy(ip+12,4,(char *) &si4->sin_addr);
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uint16_unpack_big((char *) &si4->sin_port,port);
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return r;
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}
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byte_copy(ip,16,(char *) &si.sin6_addr);
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uint16_unpack_big((char *) &si.sin6_port,port);
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if (scope_id) *scope_id=si.sin6_scope_id;
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#else
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byte_copy(ip,12,(char *)V4mappedprefix);
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byte_copy(ip+12,4,(char *) &si.sin_addr);
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uint16_unpack_big((char *) &si.sin_port,port);
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if (scope_id) *scope_id=0;
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#endif
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return r;
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}
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