From 37d78574815b0892fd06c34379d3b80d05050fe1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=B9=80=EB=AF=BC=EC=84=9C?= <minseo.kim@idatabank.com>
Date: Fri, 11 May 2018 13:08:54 +0900
Subject: [PATCH] filetest source

---
 StringSocket/Makefile |   9 ++++
 StringSocket/client.c | 106 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 115 insertions(+)
 create mode 100644 StringSocket/Makefile
 create mode 100644 StringSocket/client.c

diff --git a/StringSocket/Makefile b/StringSocket/Makefile
new file mode 100644
index 0000000..f6460f6
--- /dev/null
+++ b/StringSocket/Makefile
@@ -0,0 +1,9 @@
+all: client
+
+CC = gcc
+
+client: client.c
+	$(CC) -o $@ $^ -g
+	
+clean:
+	rm *.o
\ No newline at end of file
diff --git a/StringSocket/client.c b/StringSocket/client.c
new file mode 100644
index 0000000..f3a950c
--- /dev/null
+++ b/StringSocket/client.c
@@ -0,0 +1,106 @@
+/*
+ * client.c *
+ *  Created on: 2018. 5. 9.
+ *      Author: minseo
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+#define BUFSIZE 1024
+
+void main() {
+	int socket_fd;
+	int data_size;
+	int send_size;
+	int all_size = 0;
+	int receive_len;
+	int i;
+	struct sockaddr_in server_addr;
+	char data_buf[1000000];
+	char* data;
+	char send_buf[BUFSIZE] = { '\0', };
+	char receive_buf[BUFSIZE] = { '\0', };
+	int snd_buf;
+	socklen_t len;
+
+	if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
+		exit(1);
+	}
+
+//	if(getsockopt(socket_fd, SOL_SOCKET, SO_SNDBUF, &snd_buf, &len)) {
+//		perror("getsockop error");
+//		exit(1);
+//	}
+//	printf("%d \n", snd_buf);
+
+	memset(&server_addr, 0, sizeof(server_addr));
+	server_addr.sin_family = AF_INET;
+	server_addr.sin_addr.s_addr = inet_addr("192.168.56.103");
+	server_addr.sin_port = htons(50000);
+
+	if (connect(socket_fd, (struct sockaddr*) &server_addr, sizeof(server_addr))
+			== -1) {
+		perror("connect error");
+		exit(1);
+	}
+
+	//strcpy(send_buf, "happy birthday");
+
+	for (i = 0; i < 1000; i++) {
+		strcat(data_buf, "abcdefghijklmnopqrstuvwxyz");
+	}
+
+	data = (char *) malloc(sizeof(strlen(data_buf) + 1));
+	data = data_buf;
+//	printf("%s \n", data);
+
+	// 1. data size를 전달.
+	data_size = strlen(data);
+	sprintf(send_buf, "%d", data_size);
+
+	if (send(socket_fd, send_buf, strlen(send_buf), 0) != strlen(send_buf)) {
+		exit(1);
+	}
+
+	// 2. size가 잘 도착했는지 확인.
+	if ((receive_len = recv(socket_fd, receive_buf, BUFSIZE - 1, 0)) == -1) {
+		exit(1);
+	}
+
+	// 3. data size와 보낸 data size를 확인. size가 일치하지 않으면 exit!
+	if (data_size != atoi(receive_buf)) {
+		printf("data size error. \n");
+		exit(1);
+	}
+
+	printf("%d \n", atoi(receive_buf));
+
+//	printf("%s \n", send_buf);
+
+	i = 1;
+	// 4. size가 일치하면 데이터 전달.
+	while (1) {
+		if ((send_size = send(socket_fd, &data + i, BUFSIZE, 0)) != BUFSIZE) {
+			exit(1);
+		}
+		i++;
+		data_size -= 1024;
+		if (data_size < 1024) {
+			if ((send_size = send(socket_fd, &data + i, data_size, 0)) != data_size) {
+				exit(1);
+			}
+			break;
+		}
+	}
+
+	close(socket_fd);
+
+}
-- 
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