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AIX Version 4.3 Communications Programming Concepts
Sending UNIX Datagrams Example Program
/*
* This program fragment sends a datagram to a receiver whose
* name is retrieved from the command line arguments. The form
* of the command line is udgramsend pathname.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <stdio.h>
#define DATA "The sea is calm tonight, the tide is full..."
main(argc, argv)
int argc;
char *argv[];
{
int sock;
struct sockaddr_un name;
/* Create socket on which to send. */
sock = socket(AF_UNIX, SOCK_DGRAM, 0);
if (sock < 0) {
perror("opening datagram socket");
exit(1);
}
/* Construct name of socket to send to. */
name.sun_family = AF_UNIX;
strcpy(name.sun_path, argv[1]);
name.sun_len = strlen(name.sun_path);
/* Send message. */
if (sendto(sock, DATA, sizeof(DATA), 0, (struct sockaddr *)&name,
sizeof(struct sockaddr_un)) < 0) {
perror("sending datagram message");
}
close(sock);
}
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