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54 lines
1.3 KiB
C
54 lines
1.3 KiB
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 "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 "uint32.h"
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#include "havesl.h"
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#include "havescope.h"
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int socket_local6(int s,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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socklen_t len = sizeof si;
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if (getsockname(s,(void*) &si,&len) == -1) return winsock2errno(-1);
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#ifdef LIBC_HAS_IP6
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if (noipv6 || si.sin6_family==AF_INET || si.sin6_family==PF_INET) {
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struct sockaddr_in *si4=(void*)&si;
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if (ip) {
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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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}
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if (port) uint16_unpack_big((char *) &si4->sin_port,port);
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return 0;
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}
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if (ip) byte_copy(ip,16,(char *) &si.sin6_addr);
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if (port) uint16_unpack_big((char *) &si.sin6_port,port);
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#ifdef LIBC_HAS_SCOPE_ID
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if (scope_id) *scope_id=si.sin6_scope_id;
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#else
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if (scope_id) *scope_id=0;
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#endif
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#else
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if (ip) {
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byte_copy(ip,12,V4mappedprefix);
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byte_copy(ip+12,4,(char *) &si.sin_addr);
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}
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if (port) 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 0;
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}
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