65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
#include "tcp_client.h"
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#include <stdio.h>
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#include <string.h>
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#include "lwip/api.h"
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#include <lwip/sockets.h>
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#include <lwip/err.h>
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#include <lwip/sys.h>
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#include <errno.h>
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char recvline[512];
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const char *str = "Welcome to TencentOS Tiny!";
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const char *server_ip = "182.254.196.11";
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const unsigned short server_port = 8087;
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void application_entry(void *arg)
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{
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int socketfd, len;
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static int cnt=0;
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struct sockaddr_in sockaddr;
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struct timeval tv = {10, 0};
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MX_LWIP_Init();
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while (1) {
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if ((socketfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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printf("create socket error %s errno: %d\n", strerror(errno), errno);
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goto tcp_client_exit;
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}
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setsockopt(socketfd, SOL_SOCKET, SO_RCVTIMEO, (char*)&tv, sizeof(struct timeval));
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memset(&sockaddr, 0, sizeof(sockaddr));
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sockaddr.sin_addr.s_addr = inet_addr(server_ip);
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sockaddr.sin_family = AF_INET;
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sockaddr.sin_port = htons(server_port);
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if ((connect(socketfd, (struct sockaddr*)&sockaddr, sizeof(sockaddr))) < 0) {
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printf("connect error %s errno: %d\n", strerror(errno), errno);
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goto tcp_client_exit;
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}
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printf("send(%d): %s:%d :%s\n", ++cnt, server_ip, server_port, str);
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if ((send(socketfd, str, strlen(str), 0)) < 0) {
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printf("send msg error: %s errno : %d\n", strerror(errno), errno);
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goto tcp_client_exit;
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}
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len = recv(socketfd, recvline, sizeof(recvline), 0);
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if (len > 0) {
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recvline[len] = '\0';
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printf("recv msg from server: %s\n", recvline);
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} else {
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printf("recv err(%d)\n", len);
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}
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close(socketfd);
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tos_task_delay(1000);
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}
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tcp_client_exit:
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printf("exit\n");
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}
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