hello world

client.c

@@ -0,0 +1,58 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+static void
+test(int fd) {
+	char tmp[1024];
+	while (!feof(stdin)) {
+		fgets(tmp,sizeof(tmp),stdin);
+		int n = strlen(tmp) -1;
+		uint8_t head[2];
+		head[0] = n & 0xff;
+		head[1] = (n >> 8) & 0xff;
+		int r;
+		r = send(fd, head, 2, 0);
+		if (r<0) {
+			perror("send head");
+		}
+		r = send(fd, tmp , n, 0);
+		if (r<0) {
+			perror("send data");
+		}
+	}
+}
+
+int 
+main(int argc, char * argv[]) {
+	if (argc < 3) {
+		printf("connect address port\n");
+		return 1;
+	}
+
+	int fd = socket(AF_INET,SOCK_STREAM,0);
+	struct sockaddr_in my_addr;
+
+	my_addr.sin_addr.s_addr=inet_addr(argv[1]);
+	my_addr.sin_family=AF_INET;
+	my_addr.sin_port=htons(strtol(argv[2],NULL,10));
+
+	int r = connect(fd,(struct sockaddr *)&my_addr,sizeof(struct sockaddr_in));
+
+	if (r == -1) {
+		perror("Connect failed:");
+		return 1;
+	}
+
+	test(fd);
+
+	close(fd);
+
+	return 0;
+}