You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
46 lines
1.1 KiB
46 lines
1.1 KiB
5 months ago
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <netinet/in.h>
|
||
|
|
#include <arpa/inet.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
|
||
|
|
int main(int argc, char **argv) {
|
||
|
|
char *addr;
|
||
|
|
int port;
|
||
|
|
int sock;
|
||
|
|
struct sockaddr_in saddr;
|
||
|
|
const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
|
||
|
|
|
||
|
|
if (argc < 4) {
|
||
|
|
fprintf(stderr,
|
||
|
|
"usage : %s <addr> <port> <string>\n"
|
||
|
|
" This will connect to TCP port <addr>:<port> and send string <string>\n"
|
||
|
|
" then immediately reset.\n",
|
||
|
|
argv[0]);
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
addr = argv[1];
|
||
|
|
port = atoi(argv[2]);
|
||
|
|
|
||
|
|
sock = socket(AF_INET, SOCK_STREAM, 0);
|
||
|
|
bzero(&saddr, sizeof(saddr));
|
||
|
|
saddr.sin_addr.s_addr = inet_addr(addr);
|
||
|
|
saddr.sin_port = htons(port);
|
||
|
|
saddr.sin_family = AF_INET;
|
||
|
|
|
||
|
|
if (connect(sock, (struct sockaddr *)&saddr, sizeof(saddr)) < 0) {
|
||
|
|
perror("connect");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
send(sock, argv[3], strlen(argv[3]), MSG_DONTWAIT | MSG_NOSIGNAL);
|
||
|
|
setsockopt(sock, SOL_SOCKET, SO_LINGER, (struct linger *) &nolinger, sizeof(struct linger));
|
||
|
|
close(sock);
|
||
|
|
exit(0);
|
||
|
|
}
|