[CRIU] [PATCH 2/7] remote: Move setup_TCP_client_socket to img-proxy

[Radostin Stoyanov]

The function setup_TCP_client_socket() is used only in img-proxy.c
and it makes sense to be stored there. This change will reduce the
size of img-remote.c

Signed-off-by: Radostin Stoyanov <rstoyanov1 at gmail.com>
---
 criu/img-proxy.c          | 37 +++++++++++++++++++++++++++++++++++++
 criu/img-remote.c         | 37 -------------------------------------
 criu/include/img-remote.h |  1 -
 3 files changed, 37 insertions(+), 38 deletions(-)

diff --git a/criu/img-proxy.c b/criu/img-proxy.c
index c4d442e6..2d7d246d 100644
--- a/criu/img-proxy.c
+++ b/criu/img-proxy.c
@@ -5,9 +5,46 @@
 #include "criu-log.h"
 #include <pthread.h>
 #include <fcntl.h>
+#include <netdb.h>
 #include <sys/socket.h>
 #include "cr_options.h"
 
+int setup_TCP_client_socket(char *hostname, int port)
+{
+	int sockfd;
+	struct sockaddr_in serv_addr;
+	struct hostent *server;
+
+	sockfd = socket(AF_INET, SOCK_STREAM, 0);
+	if (sockfd < 0) {
+		pr_perror("Unable to open remote image socket");
+		return -1;
+	}
+
+	server = gethostbyname(hostname);
+	if (server == NULL) {
+		pr_perror("Unable to get host by name (%s)", hostname);
+		goto err;
+	}
+
+	bzero((char *) &serv_addr, sizeof(serv_addr));
+	serv_addr.sin_family = AF_INET;
+	bcopy((char *) server->h_addr,
+		(char *) &serv_addr.sin_addr.s_addr,
+		server->h_length);
+	serv_addr.sin_port = htons(port);
+
+	if (connect(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
+		pr_perror("Unable to connect to remote %s", hostname);
+		goto err;
+	}
+
+	return sockfd;
+err:
+	close(sockfd);
+	return -1;
+}
+
 int image_proxy(bool background, char *local_proxy_path, char *fwd_host, unsigned short fwd_port)
 {
 	pr_info("CRIU to Proxy Path: %s, Cache Address %s:%hu\n",
diff --git a/criu/img-remote.c b/criu/img-remote.c
index 4593f41f..51fa0337 100644
--- a/criu/img-remote.c
+++ b/criu/img-remote.c
@@ -5,7 +5,6 @@
 #include <sys/socket.h>
 #include <sys/epoll.h>
 #include <netinet/in.h>
-#include <netdb.h>
 #include "xmalloc.h"
 #include "criu-log.h"
 #include "img-remote.h"
@@ -120,42 +119,6 @@ struct roperation *get_rop_by_name(
 	return NULL;
 }
 
-int setup_TCP_client_socket(char *hostname, int port)
-{
-	int sockfd;
-	struct sockaddr_in serv_addr;
-	struct hostent *server;
-
-	sockfd = socket(AF_INET, SOCK_STREAM, 0);
-	if (sockfd < 0) {
-		pr_perror("Unable to open remote image socket");
-		return -1;
-	}
-
-	server = gethostbyname(hostname);
-	if (server == NULL) {
-		pr_perror("Unable to get host by name (%s)", hostname);
-		goto err;
-	}
-
-	bzero((char *) &serv_addr, sizeof(serv_addr));
-	serv_addr.sin_family = AF_INET;
-	bcopy((char *) server->h_addr,
-		(char *) &serv_addr.sin_addr.s_addr,
-		server->h_length);
-	serv_addr.sin_port = htons(port);
-
-	if (connect(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) {
-		pr_perror("Unable to connect to remote %s", hostname);
-		goto err;
-	}
-
-	return sockfd;
-err:
-	close(sockfd);
-	return -1;
-}
-
 int event_set(int epoll_fd, int op, int fd, uint32_t events, void *data)
 {
 	int ret;
diff --git a/criu/include/img-remote.h b/criu/include/img-remote.h
index ac17025d..62ea5c9d 100644
--- a/criu/include/img-remote.h
+++ b/criu/include/img-remote.h
@@ -85,7 +85,6 @@ int64_t recv_image_async(struct roperation *op);
 int64_t read_remote_header(int fd, char *snapshot_id, char *path, int *open_mode, uint64_t *size);
 int64_t write_remote_header(int fd, char *snapshot_id, char *path, int open_mode, uint64_t size);
 
-int setup_TCP_client_socket(char *hostname, int port);
 int setup_UNIX_server_socket(char *path);
 void socket_set_non_blocking(int fd);
 
-- 
2.17.1