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| #include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <assert.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
int main(int argc, char* argv[])
{
if (argc <= 2)
{
printf("usage: %s ip_address port_number\n", basename(argv[0]));
return 1;
}
const char* ip = argv[1];
int port = atoi(argv[2]);
struct sockaddr_in server_address = {0};
server_address.sin_family = AF_INET;
inet_pton(AF_INET, ip, &server_address.sin_addr);
server_address.sin_port = htons(port);
int sockfd = socket(PF_INET, SOCK_STREAM, 0);
assert(sockfd >= 0);
if (connect(sockfd, (struct sockaddr*)&server_address, sizeof(server_address)) < 0)
{
printf("connection failed\n");
}
else
{
printf("send oob data out\n");
const char* oob_data = "abc";
const char* normal_data = "123";
send(sockfd, normal_data, strlen(normal_data), 0);
send(sockfd, oob_data, strlen(oob_data), MSG_OOB);
send(sockfd, normal_data, strlen(normal_data), 0);
}
close(sockfd);
return 0;
}
|