服务端程序如下：
%`&ph6d6X:~bU+M Y#include <sys/types.h>
EH!vqzLinux伊甸园论坛#include <sys/socket.h>
|h2uuF3{Linux伊甸园论坛#include <sys/poll.h>
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#include <sys/ipc.h>
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#include <sys/ioctl.h>
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#include <sys/select.h>
C/BSlo)ch2^#include <sys/shm.h>
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#include <sys/un.h>
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#include <netinet/in.h>
gw6z7{ z `F_S;`Nwww.linuxeden.com#include <arpa/inet.h>
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#include <stdio.h>
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#include <unistd.h>
C'n:B EP Yez%g#x#include <stdlib.h>
W$LT|*c#include <string.h>
7oF}-l(oZ#include <errno.h>
gwo KP Mint main ()
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int sock,sockfd;
]w^;I E/Hi"L unsigned char v6[16];
U7j;LK Z struct sockaddr_in6 addr,servaddr;
#]%IN Wp*F6[3z'o)WAwww.linuxeden.com socklen_t fromlen;
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char packetbuffer[1024];
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int size;
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// create sockets
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sock = socket(PF_INET6,SOCK_DGRAM,0);
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if (sock == -1)
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{
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printf(" create socket error\n");
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exit(-1);
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printf("Create socket 6 =%d\n",sock);
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// bind sockets
cZT0h$A$B memset(&addr,0,sizeof(struct sockaddr_in6));
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addr.sin6_family = AF_INET6;
@6U+W`2N2m1i7s r addr.sin6_port = htons(9000);
}vFpPc${ G3_*sxwww.linuxeden.com if (inet_pton (AF_INET6, "3ffe:321f::50a", &addr.sin6_addr) <= 0) {
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printf ("inet_pton error \n");
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exit (3);
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if (bind(sock,(struct sockaddr *)&addr,sizeof(addr)) != 0)
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fromlen = sizeof( struct sockaddr_in6 );
f,E1K3P7Hx+y,zL2B8ULinux伊甸园论坛 //int rcvtimeo = 30000 ; // 45 sec insteadof 45 as default
]]&DA N:g)jz@ //setsockopt(sock, SOL_SOCKET , SO_RCVTIMEO , (const char *)&rcvtimeo , sizeof(rcvtimeo) );
,V*@"kkO:Xi$W while(1)
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{
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int recvlen=0;
2B1dO*AvrS recvlen = recvfrom(sock,packetbuffer,1024,0,(struct sockaddr *)&servaddr,&fromlen);
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cRd+oJ-r'dwww.linuxeden.com if ( recvlen <0 )
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else
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{
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break;
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close(sock);
G"m!F:\'^www.linuxeden.com return 0;
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发送端程序如下：
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dPG/^!`*x)jwww.linuxeden.com#include <sys/types.h>
w#kB gW h(V X#include <sys/socket.h>
8gb|4sG^ z J#include <sys/poll.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
pk;y@R^u&h.hQ#include <sys/un.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
'n&XZ,rgLinux伊甸园论坛#include <stdio.h>
&B ]#A,SG Y-N3?nwww.linuxeden.com#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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int main ()
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int sockfd;
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struct sockaddr_in6 servaddr;
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printf("socket\n");
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if ((sockfd = socket (AF_INET6, SOCK_DGRAM, 0)) < 0) {
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perror ("socket");
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exit (2);
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}
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printf("sock=%d\n",sockfd);
~7K!Q%C+b0Fm7uq~Linux伊甸园论坛 bzero (&servaddr, sizeof (servaddr));
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servaddr.sin6_family = AF_INET6;
P.a3V6} S(c8Pt(qv r servaddr.sin6_port = htons (8000);
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if (inet_pton (AF_INET6, "3ffe:321f::50a", &servaddr.sin6_addr) <= 0) {
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printf ("inet_pton error\n");
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exit (3);
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if (bind (sockfd, (struct sockaddr *)&servaddr, sizeof (servaddr)) < 0)
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exit (4);
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printf("sendto\n");
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sendto(sockfd, "123456789", 9, 0, (struct sockaddr *)&servaddr, sizeof(struct sockaddr_in6));
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close (sockfd);
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`H [^F!H,`Linux伊甸园论坛 return 0;
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}
