From 03eb49a78a2b1edcea84fe7f3f21ceab50ee8b37 Mon Sep 17 00:00:00 2001
From: =?utf8?q?R=C4=83zvan=20Crainea?= <razvan.crainea@gmail.com>
Date: Sat, 2 Jun 2012 13:31:49 +0300
Subject: [PATCH] sendfile: added testing server

---
 sendfile/server/Makefile |  7 ++++
 sendfile/server/server.c | 87 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+)
 create mode 100644 sendfile/server/Makefile
 create mode 100644 sendfile/server/server.c

diff --git a/sendfile/server/Makefile b/sendfile/server/Makefile
new file mode 100644
index 0000000..b52084b
--- /dev/null
+++ b/sendfile/server/Makefile
@@ -0,0 +1,7 @@
+FILE=server
+
+$(FILE):$(FILE).o
+
+.PHONY: clean
+clean:
+	-rm -rf $(FILE) $(FILE).o
diff --git a/sendfile/server/server.c b/sendfile/server/server.c
new file mode 100644
index 0000000..8bc0ff0
--- /dev/null
+++ b/sendfile/server/server.c
@@ -0,0 +1,87 @@
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <netdb.h>
+#include <stdio.h>
+
+#define BUFFER_SIZE		256
+
+int main(int argc, char **argv)
+{
+	int sock, err, file_fd;
+	ssize_t ret, len, offset, bytes_to_write;
+	struct sockaddr_in psin;
+	struct hostent *host;
+	char buffer[BUFFER_SIZE];
+
+	if (argc != 4) {
+		fprintf(stderr, "Usage: %s <peer_ip> <peer_port> <file_name>\n", argv[0]);
+		return -1;
+	}
+
+	printf("Opening AF_INET socket\n");
+
+	/* first open the file descriptor */
+	file_fd = open(argv[3], O_CREAT|O_WRONLY|O_TRUNC, 0644);
+	if (file_fd < 0) {
+		printf("Cannot open file for write\n");
+		return -1;
+	}
+	printf("Opened file for write %s[%d]\n", argv[3], file_fd);
+
+	sock = socket(AF_INET, SOCK_DGRAM, 0);
+	printf("Socket returned: %d\n", sock);
+
+	if (sock < 0) {
+		printf("Cannot create AF_INET socket: %s(%d)\n",
+				strerror(errno), errno);
+		return -1;
+	}
+	printf("Successfully created AF_INET socket: %d\n", sock);
+
+	host = gethostbyname(argv[1]);
+	psin.sin_family = AF_INET;
+	psin.sin_port = htons(atoi(argv[2]));
+	psin.sin_addr = *((struct in_addr *)host->h_addr);
+
+	if (bind(sock, (struct sockaddr *)&psin,
+				sizeof(struct sockaddr_in)) == -1) {
+		printf("Cannot bind to server: %s(%d)\n", strerror(errno), errno);
+		return -1;
+	}
+
+	printf("Bound to: %s:%s\n", argv[1], argv[2]);
+	
+	for (;;) {
+		ret = read(sock, buffer, BUFFER_SIZE);
+		if (ret < 0) {
+			printf("Error while receiving file %s: %s(%d)\n", argv[0],
+					strerror(errno), errno);
+			return err;
+		} else if (ret == 0) {
+			break;
+		}
+		bytes_to_write = ret;
+		offset = 0;
+		do {
+			len = write(file_fd, buffer+offset, bytes_to_write);
+			if (len < 0) {
+				printf("Error while receiving file %s: %s(%d)\n", argv[0],
+						strerror(errno), errno);
+				return -1;
+			}
+			bytes_to_write -= len;
+			offset += len;
+		} while (bytes_to_write > 0);
+		if (ret < BUFFER_SIZE)
+			break;
+	}
+
+	printf("Successfully read file %s\n", argv[0]);
+
+	return 0;
+}
-- 
2.20.1